TC
/
arozos


			
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							<html>

<head>
    <title>ArozOS Desktop</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="script/tocas/tocas.css">
    <link id="fwcss" rel="stylesheet" href="script/ao.css">
    <link rel="stylesheet" href="SystemAO/desktop/script/jsCalendar/source/jsCalendar.css">
    <script type="text/javascript" src="script/tocas/tocas.js"></script>
    <script type="text/javascript" src="script/jquery.min.js"></script>
    <script type="text/javascript" src="script/ao_module.js"></script>
    <script type="text/javascript" src="SystemAO/desktop/script/jsCalendar/source/jsCalendar.js"></script>
    <style>
        body {
            background-repeat: no-repeat;
            background-size: cover;
            background-position: center;
            background-image: url('img/desktop/bg/init.jpg');
            width: 100%;
            height: 100%;
        }
        
        .backgroundFrame {
            height: 100%;
            min-width: 100%;
            background-repeat: no-repeat;
            background-size: cover;
            border: 0px solid transparent;
            background-position: center;
            position: absolute;
            opacity: 0;
            top: 0;
            left: 0;
            -webkit-transition: opacity 2s ease-in-out;
            -moz-transition: opacity 2s ease-in-out;
            -o-transition: opacity 2s ease-in-out;
            transition: opacity 2s ease-in-out;
        }
        
        .background-wrapper {
            border: 0px solid transparent;
            overflow: hidden;
            width: 100%;
            height: 100%;
            position: fixed;
            left: 0px;
            top: 0px;
            user-select: none;
            -moz-user-select: none;
            -webkit-user-drag: none;
            -webkit-user-select: none;
            -ms-user-select: none;
        }
        
        .showBackground {
            opacity: 1;
        }
        
        .icon-wrapper {
            height: 100%;
            width: 100%;
            position: fixed;
            top: 0px;
            left: 0px;
            padding: 5px;
        }
        
        .launchIcon {
            position: fixed;
            cursor: pointer;
            padding: 2px;
        }
        
        .launchIconImage.small {
            width: 48px;
            height: 48px;
        }
        
        .launchIconImage.medium {
            width: 68px;
            height: 68px;
        }
        
        .launchIconImage.big {
            width: 82px;
            height: 82px;
        }
        
        .launchIconWrapper {
            height: 100%;
            width: 100%;
            border-radius: 3px;
        }
        
        .launchIconWrapper.selected {
            background: rgba(250, 250, 250, 0.4) !important;
        }
        
        .launchIconText {
            color: white;
            text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
            text-align: center;
            text-overflow: ellipsis;
            overflow: hidden;
            word-break: break-all;
            width: 100%;
            font-variant-numeric: tabular-nums lining-nums;
        }
        
        .launchIconWrapper:hover {
            background: rgba(250, 250, 250, 0.2);
        }
        
        .launchIconText.small {
            margin-top: -3px;
            font-size: 70%;
            line-height: 1.55em;
            /*
                Fixed the issue of text being trimmed off due to lineheight setting
            */
            font-family: sans-serif !important;
        }
        
        .launchIconText.medium {
            margin-top: -2px;
            font-size: 90%;
            line-height: 1.2em;
        }
        
        .launchIconText.big {
            margin-top: -6px;
            font-size: 110%;
        }
        
        .navimenu {
            position: fixed;
            z-index: 1110;
            width: 100%;
            height: 36px;
            left: 0px;
            bottom: 0px;
            padding-left: 8px;
            padding-right: 8px;
        }

        /* Connection loss indicator */
        #connectionLost{
            position: fixed;
            z-index: 1000;
            right: 1em;
            top: calc(30px + 1em);
            display: none;
        }

        #connectionLost .ts.card{
            box-shadow: none;
            border: 0px solid transparent;
        }

        /* Theme Color css settings */
        .themeColor {
            background-color: rgba(14,14,14,0.5);
            backdrop-filter: blur(4px);
        }

        .themeColorSolid{
            background-color: rgba(14,14,14,0.9);
            backdrop-filter: blur(4px);
        }
        
        .navimenu .item {
            height: 36px;
            display: inline-block;
            vertical-align: top;
        }
        
        .navimenu .item.padding {
            display: inline-block;
            width: 12px;
        }
        
        .navimenu .item.clickable:hover {
            background-color: rgba(250, 250, 250, 0.2);
            cursor: pointer;
        }
        /* Floatwindow control button related css*/
        
        .navimenu .item.floatWindowButton {
            padding: 8px;
            padding-top: 10px;
            vertical-align: top;
            width: 200px;
            overflow: hidden;
            font-size: 90%;
            text-overflow: ellipsis;
            white-space: nowrap;
            word-break: break-all;
            color: white;
        }
        
        .navimenu .item.floatWindowButton .floatWindowAppIcon {
            height: 20px;
            margin-top: -2px;
            margin-right: 8px;
            display: inline-block;
        }
        
        .navimenu .item.floatWindowButton .floatWindowTitle {
            display: inline;
            color: white;
            padding-top: 5px;
            vertical-align: top;
        }
        
        .navimenu .item.floatWindowButton.hideText {
            width: 36px;
        }
        
        .navimenu .item.floatWindowButton.hideText .floatWindowTitle {
            display: none;
        }
        
        .navimenu .item.floatWindowButton.hideText .floatWindowAppIcon {
            margin-right: 0px;
        }
        
        #fwdragpanel {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0px;
            left: 0px;
            z-index: 100;
            display: none;
        }

        #tfwdragpanel{
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0px;
            left: 0px;
            z-index: 500;
            display: none;
        }
        
        #stackedWindowList {
            position: fixed;
            z-index: 1112;
            left: 0px;
            bottom: 36px;
            width: 300px;
            padding-bottom: 4px;
            display: none;
        }
        
        #stackedWindowList .item {
            padding: 6px;
            display: inline-block;
            color: white;
            width: 100%;
        }
        
        #stackedWindowList .item img {
            display: inline-block;
            vertical-align: bottom;
            width: 20px;
            height: 20px;
            margin-right: 12px;
            margin-top: 0px;
            margin-left: 4px;
        }
        
        #stackedWindowList .item span {
            overflow: hidden;
            word-break: break-all;
            text-overflow: ellipsis;
            white-space: nowrap;
            width: calc(100% - 4px);
        }
        
        #stackedWindowList .item.clickable:hover {
            background-color: rgba(250, 250, 250, 0.2);
            cursor: pointer;
        }
        
        #stackedWindowList .item .closebtn {
            position: absolute;
            right: 0px;
            top: 8px;
        }
        
        #stackedWindowList .item .closebtn>img {
            height: 15px;
            width: 15px;
        }
        
        #listMenu {
            position: fixed;
            bottom: 36px;
            left: 0px;
            height: 500px;
            width: 400px;
            background-color: #fcffff;
            box-shadow: 3px 3px 5px 0px rgba(207, 207, 207, 0.37);
            z-index: 1113;
        }

        #listMenu.darkTheme{
            background-color: #242330;
            color: white;
            -webkit-box-shadow: 7px -6px 7px -1px rgba(92,92,92,0.2);
            -moz-box-shadow: 7px -6px 7px -1px rgba(92,92,92,0.2);
            box-shadow: 7px -6px 7px -1px rgba(92,92,92,0.2);
        }
        
        #listMenu .searchBar{
            width: 100%;
            border-bottom: 2px solid #34b7eb;
        }

        #listMenu.darkTheme .searchBar input{
            background-color: #17161f !important;
            color: white !important;
            border: 1px solid #17161f;
        }
        
        #listMenu .listItemWrapper {
            overflow: hidden;
        }
        
        #listMenu .listItemWrapper .groups {
            background-color: #f5f5f5;
            width: 120px;
            height: 457px;
            display: inline-block;
            overflow-y: auto;
            padding-top: 8px;
        }

        #listMenu.darkTheme .listItemWrapper .groups {
            background-color: #17161f;
            color: white;
        }
        
        #listMenu .listItemWrapper .groups .item {
            padding-left: 7px;
            padding-bottom: 6px;
            padding-top: 6px;
            cursor: pointer;
        }
        
        #listMenu .listItemWrapper .groups .item.selected {
            color: #34b7eb;
        }
        
        #listMenu .listItemWrapper .groups .item:hover {
            background-color: #dedede;
        }

        #listMenu.darkTheme .listItemWrapper .groups .item:hover {
            background-color: #242330;
        }
        
        #listMenu .listItemWrapper .items {
            height: 457px;
            width: calc(100% - 120px - 5px);
            display: inline-block;
            overflow-y: auto;
            padding-top: 8px;
            box-shadow: -2px 0px 5px 0px rgba(194, 194, 194, 0.5);
            vertical-align: top;
        }

        #listMenu.darkTheme .listItemWrapper .items {
            box-shadow: 0px 0px 0px 0px transparent;
        }
        
        #listMenu .listItemWrapper .items .item {
            padding-left: 12px;
            padding-top: 8px;
            padding-bottom: 8px;
            cursor: pointer;
        }
        
        #listMenu .listItemWrapper .items .item:hover {
            background-color: #f5f5f5;
        }

        #listMenu.darkTheme .listItemWrapper .items .item:hover {
            background-color: #17161f !important;
            margin-right: 5px;
        }
        
        #listMenu .listItemWrapper .items .item img {
            width: 26px;
            margin-right: 12px;
            vertical-align: middle;
        }
        
        #listMenu .poweroption {
            position: absolute;
            bottom: 0px;
            left: 0px;
            padding: 6px;
            padding-left: 7px;
            width: 100%;
            cursor: pointer;
        }
        
        #listMenu .poweroption:hover {
            background-color: #dedede;
        }

        #listMenu.darkTheme .poweroption:hover {
            background-color: #242330;
        }
        
        #contextmenu {
            position: fixed;
            z-index: 3000;
            left: 20px;
            top: 20px;
        }
        
        #contextmenu .item {
            padding: 0.6em 1em !important;
        }
        
        #subcontextmenu .item {
            padding: 0.6em 1em !important;
        }
        
        #selectionPanel {
            background-color: rgba(39, 108, 227, 0.3);
            border: 1px solid #276ce3;
            position: fixed;
            height: 100px;
            width: 100px;
            display: none;
        }
        
        .renameInput {
            background-color: white;
            border: 1px solid black;
            width: 100%;
            position: absolute;
        }
        
        .renameInput.big {
            bottom: 0px;
            left: 0px;
            font-size: 16px;
            line-height: 1;
        }
        
        .renameInput.medium {
            bottom: 8px;
            left: 0px;
            height: 32px;
            font-size: 12px;
            line-height: 1;
        }
        
        .renameInput.small {
            bottom: 3px;
            left: 0px;
            height: 24px;
            font-size: 11px;
            line-height: 1;
        }

        #statusbar{
            position:absolute;
            z-index:0;
            width:100%;
            height:28px;
            background-color: rgba(0,0,0,0.9);
            color:white;
            backdrop-filter: blur(4px);
            text-align:center;
            display: table;
        }

        .statusbarpadding{
            padding:4px;
        }

        .hostname{
            display: table-cell; 
            text-align:left; 
            width:100px; 
            pointer-events:none;
            padding-left:18px;
            white-space: nowrap;
            user-select: none;
        }

        .quicktools{
            display: table-cell; 
            text-align:right; 
            width:45px;
            
        }

        .qtwrapper{
            padding:4px;
            padding-right: 8px;
            cursor:pointer;
        }

        .qtwrapper:hover{
            background-color: rgba(240,240,240,0.2);
            
        }

        .notificationbar{
            position: absolute;
            top:28px;
            width:100%;
            height: calc(100% - 28px);
            z-index:1114;
        }

        .notificationbar .content{
            background-color:white;
            margin-top:6px;
            margin-left: auto;
            margin-right: auto;
            width:30%;
            min-width:650px;
            height:400px;
            z-index:1115;
            padding: 3px;
            border-radius: 5px;
        }

        .notificationbar .cover{
            backdrop-filter: blur(2px);
            -webkit-backdrop-filter: blur(2px);
            position:absolute;
            top:0px;
            left:0px;
            width:100%;
            height: calc(100%);
        }

        @supports not (backdrop-filter: blur(2px)) {
            .notificationbar .cover{
                /*
                //Replaced with Javascript implementation on Firefox
                background-color: rgba(24,24,24,0.3);
                */
            }
            
            #bgwrapper{
                transition: all 0.5s ease;
            }

            #iconwrapper{
                transition: all 0.5s ease;
            }

            #navimenu{
                transition: all 0.5s ease;
            }


        }

        .notification .title{
            font-weight:bold;
            font-size:120%;
        }

        .notification .notifycontent{
            margin-top:-12px;
        }

        .notificationbar .clearall{
            position:absolute;
            top:0px;
            right:4px;
            cursor:pointer;
        }

        .nonotification{
            opacity: 0.3;
            pointer-events:none;
            position:absolute;
            margin-top:9em;
            width:100%;
            user-select: none;
        }

        .notification.object .closebtn{
            position:absolute;
            top:3px;
            right:3px;
            cursor:pointer;
        }

        .notification.object{
            padding-left:7px;
            border-left: 3px solid transparent;
            cursor:pointer;
        }

        .notification.object:hover{
            /*
                border-left: 3px solid #83D8FF;
            */
        }

        .blured{
            filter: blur(2px);
        }

        #quickAccessPanel{
            background-color:white;
            position:absolute;
            top:28px;
            right:4px;
            z-index:114;
            width:300px;
            border-radius: 10px;
            border-top-right-radius: 0px;
            border-top-left-radius: 0px;
            border: 1px solid #ebebeb;
            padding-top:8px;
            padding-bottom:8px;
        }

        #quickAccessPanel .item{
            padding-left:12px;
            padding-right:12px;
            padding-top:6px;
            padding-bottom:2px;
            cursor:pointer;
            border-left: 3px solid transparent;
        }

        #quickAccessPanel .item:hover{
           background-color:#fafafa;
        }

        /*
            Handle dark theme for the quick access panel
        */

        #quickAccessPanel.darkTheme{
            background-color: #242330;
            color: white;
            border: 1px solid transparent;
            -webkit-box-shadow: -5px 4px 7px -1px rgba(92,92,92,0.2);
            -moz-box-shadow: -5px 4px 7px -1px rgba(92,92,92,0.2);
            box-shadow: -5px 4px 7px -1px rgba(92,92,92,0.2);
        }
        #quickAccessPanel.darkTheme .item:hover{
           background-color:#17161f;
        }
        #quickAccessPanel.darkTheme .header{
           color: white;
        }
        #quickAccessPanel.darkTheme .progress{
           background-color: #0c0c0f;
        }
        #quickAccessPanel.darkTheme .header{
           color: white;
        }
        #quickAccessPanel.darkTheme .inverted.button{
           background-color: #17161f;
           border: 1px solid black;
        }

        .item.module{
            cursor:pointer;
        }

        .item.module:hover{
            background-color:#f5f5f5 !important;
        }

         /* Offline blinking warning css */
         @-moz-keyframes blink {
                0% {
                    opacity:1;
                }
                50% {
                    opacity:0;
                }
                100% {
                    opacity:1;
                }
            } 

            @-webkit-keyframes blink {
                0% {
                    opacity:1;
                }
                50% {
                    opacity:0;
                }
                100% {
                    opacity:1;
                }
            }
            /* IE */
            @-ms-keyframes blink {
                0% {
                    opacity:1;
                }
                50% {
                    opacity:0;
                }
                100% {
                    opacity:1;
                }
            } 
            /* Opera and prob css3 final iteration */
            @keyframes blink {
                0% {
                    opacity:1;
                }
                50% {
                    opacity:0;
                }
                100% {
                    opacity:1;
                }
            } 
            .blink-image {
                -moz-animation: blink normal 2s infinite ease-in-out; /* Firefox */
                -webkit-animation: blink normal 2s infinite ease-in-out; /* Webkit */
                -ms-animation: blink normal 2s infinite ease-in-out; /* IE */
                animation: blink normal 2s infinite ease-in-out; /* Opera and prob css3 final iteration */
            }


        /*
                Z-index layering
                Layer -1 : Background Images
                Layer 0 - 99: Not focused tab
                Layer 100: Focused tab drag drop layer
                Layer 101: Focused Tab
                ...
                Layer 400 - 499: Non-focused top most FloatWindows
                Layer 500: Top Mot FloatWindow drag drop layer
                Layer 501: Top Most FloatWindow
                ...
                Layer 1000: Connection lost indicator
                ...
                Layer 1110: Navigation Bar
                Layer 1112: Stacked Window List
                Layer 1113: List Menu
                Layer 1114: Notification Bar background bluring layer
                Layer 1115: Notification Bar
                ...
                Layer 3000: contextmenu
            */
    </style>
    <script>
        //Force redirection if it is on mobile
        if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
            window.location.href = "mobile.system";
        }
    </script>
</head>

<body style="background-color:black;">
    <!-- Background frames-->
    <div id="bgwrapper" class="background-wrapper" allowdrop="true" ondrop="drop(event)" ondragstart="return false;" onclick="event.preventDefault(); hideAllContextMenus();" ondblclick="event.preventDefault();event.stopImmediatePropagation();" ondragover="allowDrop(event);"
        align="center" draggable="false">
    </div>
    <!-- Top Status Bar -->
    <div id="statusbar" align="center">
        <div class="hostname statusbarpadding">
            Welcome
        </div>
        <div class="clock statusbarpadding" style="display: table-cell; cursor:pointer; user-select: none;" onclick="toggleNotification();" ontouchstart="toggleNotification();">
            ArozOS Desktop
        </div>
        <div class="quicktools" onclick="showToolPanel();" ontouchend="showToolPanel();">
            <div class="qtwrapper">
                <i class="content icon"></i>
            </div>
        </div>
    </div>
    <!-- Calendar and Notification -->
    <div class="notificationbar" style="display:none;">
        <div class="content">
            <div id="notificationlist" style="width: calc(100% - 302px); padding:8px; margin-top:5px; padding-top:22px; overflow-y:auto; overflow-x:hidden; height: calc(100% - 12px);">
                <div class="nonotification">
                    <h4 class="ts center aligned icon header">
                        <i class="bell icon"></i>No Notification
                    </h4>
                </div>
                <a class="clearall" onclick="clearAllNotification();">Clear All</a>
            </div>
            <div style="position:absolute; right:3px; top:3px; padding-top:8px;">
                <div class="ts header" style="padding-left:22px;">
                    <div id="dayofweek" class="sub header"></div>
                    <span id="largedate" style="font-size:120%;"></span>
                </div>
                <div class="auto-jsCalendar blue"></div>
            </div>
        </div>
        <div class="cover" onclick='toggleNotification("hide");' ontouchstart='toggleNotification("hide");'>

        </div>
    </div>
    <!-- Desktop icons-->
    <div id="iconwrapper">
        
    </div>
    
    <!-- Navigation Menu-->
    <div id="navimenu" class="navimenu themeColor">
        <div class="item clickable system" onclick="toggleListMenu();" ontouchstart="toggleListMenu();" >
            <img style="height:36px;" src="img/desktop/system_icon/list.png"></img>
        </div>
        <div class="item padding system"></div>
    </div>

    <!-- floatWindow dragging panel-->
    <div id="fwdragpanel"></div>
    <div id="tfwdragpanel"></div>

    <!-- Selection panel-->
    <div id="selectionPanel"></div>

    <!-- Stacked windows listing container-->
    <div id="stackedWindowList" class="themeColor"></div>

    <!-- List menu -->
    <div id="listMenu" class="" style="display:none;">
        <div class="searchBar" onkeydown="searchModule(event);">
            <div class="ts icon fluid input" style="border-radius: 0px !important;">
                <input id="searchBar" type="text" placeholder="Search">
                <i class="search icon"></i>
            </div>
        </div>
        <dib class="listItemWrapper">
            <div class="groups">
                <div id="searchResults" class="item" style="display:none;">Search Results</div>
                <div class="item groupType selected" group="All">All</div>
                <div class="item groupType" group="Media">Media</div>
                <div class="item groupType" group="Office">Office</div>
                <div class="item groupType" group="Download">Download</div>
                <div class="item groupType" group="Files">Files</div>
                <div class="item groupType" group="Internet">Internet</div>
                <div class="item groupType" group="System Settings">System Settings</div>
                <div class="item groupType" group="System Tools">System Tools</div>
                <div class="item groupType" group="Utilities">Utilities</div>
                <div class="item groupType" group="Other">Other</div>
                <div class="poweroption">
                    <img id="powerIcon" style="width:18px; vertical-align: top; margin-right:4px;" src="img/system/power.svg"></img> Exit
                </div>
            </div>
            <div id="listMenuItem" class="items">

            </div>
        </dib>

    </div>

    <div id="contextmenu" class="ts tiny contextmenu visible" style="display:none;">

    </div>

    <div id="subcontextmenu" class="ts tiny contextmenu visible" style="display:none;">

    </div>

    <!-- Disconnected. Reconnecting interface -->
    <div id="connectionLost">
        <div class="ts inverted card themeColor" style="width: 300px; background-color: rgba(14,14,14,0.5);">
            <div class="content">
                <div class="header"><img class="ts mini image blink-image" style="vertical-align:bottom; padding-right: 0.5em;" src="SystemAO/desktop/icons/connlost.svg"> Connection Lost</div>
                <div class="description">
                    Connection to server is lost. Please wait until this warning disappear before further operations.
                </div>
            </div>
            <div class="ts fluid bottom attached buttons">
                <button class="ts opinion button" onclick="handleManualCheckReconnect(this);">Check Again</button>
                <button class="ts secondary opinion button">Wait</button>
            </div>
        </div>
        
      
    </div>

    <div id="quickAccessPanel" class="" style="display:none;">
        <div class="ts small single line items">
            <div class="item">
                <div class="ts mini image">
                    <img class="usericon" src="img/desktop/system_icon/user.svg">
                </div>
                <div class="content">
                    <div id="username" class="header">User</div>
                    <div class="meta">
                        <div id="usergroups">@Users</div>
                    </div>
                </div>
                <div class="actions">
                    <div class="ts button" onclick="logout(); hideToolPanel();">
                        <i class="log out icon"></i> Logout
                    </div>
                </div>
            </div>
        </div>
        <div class="item" style="padding-bottom:12px;">
            <i class="volume up icon"></i> System Global Volume
            <div class="ts fluid small progress" style="margin-top:8px; cursor:pointer;" onclick="updateVolume(this,event);" >
                <div id="volumebar" class="bar" style="width: 0%; background-color:#52C9FF;  cursor:pointer;"></div>
            </div>
        </div>
        <div class="item" id="settingButton" onclick="showSystemSettings(); hideToolPanel();" ontouchend="showSystemSettings(); hideToolPanel();">
            <i class="setting icon"></i> System Settings
            <!-- <div style="float:right;"><i class="caret right icon"></i></div> -->
        </div>
        <div class="item" onclick="fullscreen(); hideToolPanel();" ontouchend="fullscreen(); hideToolPanel();">
            <i class="maximize icon"></i> Toggle Fullscreen
        </div>
        <div class="ts divider"></div>
        <!-- 
            <div class="item" onclick="logout(); hideToolPanel();">
                <i class="log out icon"></i> Logout
            </div>
        -->
        <div class="item hardware" onclick="restart(); hideToolPanel();" ontouchend="restart(); hideToolPanel();">
            <i class="repeat icon"></i> Restart
        </div>
        <div class="item hardware" style="color:#b51d1d;"  onclick="shutdown(); hideToolPanel();" ontouchend="shutdown(); hideToolPanel();">
            <i class="power icon"></i> Power Off
        </div>
    </div>

    <script>
        /*
        ArOZ Online Desktop Interface

        This script maintain the usability of the desktop environment.
        This is not identical to the previous Desktop environment used in ArOZ Online BETA.
        */

        //System environment variables
        var isDesktopMode = true;
        var loggingOut = false;

        //Desktop background related
        var desktopThemeList = []; //Storing the list of background installed
        var currentBackgroundList = []; //Current list of background files
        var currentUserTheme = ""; //The theme for current user. 
        var backgroundCrossfadeInterval = 30000; //Time between the crossfade of each background image
        var nextSlideshowIndex = 0; //The next background image index to be shown
        var backgroundIntervalCounter; //The interval object for background changer
        var desktopThemeColor = ""; //The current desktop theme color, which renders to the status bar and suchs

        //Desktop icon realted
        var desktopIconSize = "medium"; //Size of desktop icons. Allow {small / medium / big}
        var desktopIconPack = "default"; //Desktop icon pack to be used. Located under desktop/file_icon/{pack-name}
        var desktopGrids = []; //Reference virtual grid for icons on desktop
        var iconSize = []; //Defined the icon size for the desktop icons
        var desktopFileList = []; //Temperature storage of desktop filenames
        var startDragRelatuve = []; //Relative location of where the icon being start dragging
        var iconOffsetXY = [0,20];  //Pixel to offset for the icon location

        //Float window related
        var focusedWindow;
        const maxWindowCount = 100;
        var movingWindow = false;
        var resizingWindow = false;
        var resizingEdgeID = 0; //Resizing edge. {0, 1, 2, 3, 4, 5} => None, Right, Right Bottom Corner, Bottom, Left Bottom Corner, Left 
        var stackedFloatWindowListShwon = false;

        //Laucnh icon related
        var multiSelecting = false;
        var multiSelectionStartPoint = [-1, -1];
        var clickDownOffset = [-1, -1];
        var renameMode = false;
        var operationTargetLaunchIcon;

        //Document key bindings
        var ctrlHold = false;
        var shiftHold = false;

        //ListMenu Related Paramters
        var moduleInstalled = [];
        var listMenuShown = false;

        //Context Menu variables
        var menuStartLocation = [0, 0];

        //Input Method Editor objects
        window.ime = {
            handler: null,
            focus: null
        };

        //Others
        var monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
        var daysNames = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
        var hostInfo = {};
        var userInfo = {};
        var hardwareman = false;
        var downloadMode = false;
        var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);


        //Initiation functions
        initDesktopTheme();
        initDesktopHostInfo();
        initDesktopUserInfo();
        initBackgroundSwitchingAnimation();
        //initDesktopFiles();               //Will be called in initDesktopIconPreference() -> refresh()
        initModuleList();
        initDesktopIconPreference()
        initUserDefinedThemeColor();
        hookFloatWindowEvents();
        hookLaunchMenuEvents();
        initTheme();

        //Login cookie expire check
        setInterval(function() {
            checkConnection();
        }, 15000);

        function handleManualCheckReconnect(button){
            $(button).addClass("loading");
            checkConnection(undefined, function(status){
                let oldText = $(button).text();
                $(button).removeClass("loading");
                if (status == false){
                    //Still unable to connect. Show cross icon
                    $(button).html(`<i class="remove icon"></i>`);
                    setTimeout(function(){
                        //Restore its original text after 5 sec
                        $(button).text(oldText);
                    }, 5000);
                }
            });
        }

        function checkConnection(timeout=15000, callback=undefined){
            $.ajax({
                url: 'system/auth/checkLogin',
                success: function(data) {
                    if (data == true) {
                        //Continue session
                    } else {
                        //Session timeout. Redirect to system index
                        loggingOut = true;
                        window.location.href = "index.html";
                    }
                    $("#connectionLost").hide();
                    document.title = hostInfo.Hostname;
                    if (callback != undefined){
                        callback(true);
                    }
                },
                error: function(evt) {
                    //Server closed or freezed?
                    $("#connectionLost").show();
                    document.title = "Reconnecting...";
                    if (callback != undefined){
                        callback(false);
                    }
                },
                timeout: timeout
            });
        }

        //Keep the clock updated
        setInterval(function(){
            updateClockTime();
        },5000);
        updateClockTime();
        function updateClockTime(){
            var d = new Date();
            var display = monthNames[d.getMonth()] + " " + d.getDate() + " " + zeropad(d.getHours(),2) + ":" + zeropad(d.getMinutes(),2);
            
            if ($(".notification.object").length > 0){
                display += `<span style="color: #f54242; margin-left: 8px; float: center;"><i class="notice circle icon"></i></span>`;
            }
            $(".clock").html(display);
            var largedate = monthNames[d.getMonth()] + " " + d.getDate() + " " + d.getFullYear() 
            $("#largedate").text(largedate);
            var dow = daysNames[d.getDay()];
            $("#dayofweek").text(dow);
        }

        function zeropad(n, width, z) {
            z = z || '0';
            n = n + '';
            return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
        }

        function showToolPanel(){
            $("#quickAccessPanel").slideToggle("fast");
        }
        function hideToolPanel(){
            $("#quickAccessPanel").slideUp("fast");
        }

        function initDesktopUserInfo(){
            $.get("system/desktop/user", function(data){
                if (data.error !== undefined){
                    alert(data.error);
                }else{
                    userInfo = data;
                    if (data.IsAdmin == false){
                        //Hide the power buttons
                        $(".hardware").hide();
                    }

                    //Update the user tag
                    $("#username").text(userInfo.Username);
                    $("#usergroups").text("@" + userInfo.UserGroups.join("/"));
                    $("#usergroups").attr("title",userInfo.UserGroups.join(" / "));
                    if (data.UserIcon !== ""){
                        $(".usericon").attr("src",data.UserIcon);
                    }
                }
            });
        }

        function initDesktopHostInfo(){
            //Load the data into variable
            $.get("system/desktop/host",function(data){
                hostInfo = data;
                
                //Update the ui element as well
                $(".hostname").text(hostInfo.Hostname);
                document.title = hostInfo.Hostname;

            });

            //Setup volume bar
            var currentGlobalVol = localStorage.getItem("global_volume");
            if (currentGlobalVol != null && currentGlobalVol != undefined && currentGlobalVol != ""){
                $("#volumebar").css("width", currentGlobalVol * 100 + "%");
            }else{
                currentGlobalVol = 0;
                localStorage.setItem("global_volume",currentGlobalVol);
            }

            //Check if hardware management mode is enabled. Hide buttons if needed
            $.get("system/power/accessCheck",function(data){
                if (data == true){
                    //Hardware management mode is on
                    hardwareman = true;
                }else{
                    //Hardware management mode is off
                    $(".item.hardware").hide();
                    hardwareman = false;
                }   
            });

        }

        function toggleNotification(action=undefined){
            var isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
            if (typeof action == "undefined"){
                $(".notificationbar").stop().finish().fadeToggle("fast", function(){
                    if ($(this).is(":visible")){
                        if (isFirefox){
                            $("#bgwrapper").addClass("blured");
                            $("#iconwrapper").addClass("blured");
                            $("#navimenu").addClass("blured");
                            $(".floatWindow").addClass("blured");
                            $("#listMenu").addClass("blured");
                        }
                    }else{
                        if (isFirefox){
                            $("#bgwrapper").removeClass("blured");
                            $("#iconwrapper").removeClass("blured");
                            $("#navimenu").removeClass("blured");
                            $(".floatWindow").removeClass("blured");
                            $("#listMenu").removeClass("blured");
                        }
                    }
                });
            }else{
                if (action == "hide"){
                    $(".notificationbar").stop().finish().fadeOut("fast");
                    if (isFirefox){
                        $("#bgwrapper").removeClass("blured");
                        $("#iconwrapper").removeClass("blured");
                        $("#navimenu").removeClass("blured");
                        $(".floatWindow").removeClass("blured");
                        $("#listMenu").removeClass("blured");
                    }
                  
                }else if (action == "show"){
                    $(".notificationbar").stop().finish().fadeIn("fast");
                    if (isFirefox){
                        $("#bgwrapper").addClass("blured");
                        $("#iconwrapper").addClass("blured");
                        $("#navimenu").addClass("blured");
                        $(".floatWindow").addClass("blured");
                        $("#listMenu").addClass("blured");
                    }
                }
            }
        }

        // ===================== LIST MENU EVENTS FUNCTIONS ===============

        function toggleListMenu() {
            $("#listMenu").stop().finish().animate({
                height: "toggle"
            }, 300, function() {
                if ($("#listMenu").offset().top == 0) {
                    listMenuShown = false;
                } else {
                    listMenuShown = true;
                }
            });
        }

        function initDesktopIconPreference() {
            getStorage("iconsize", function(catergory) {
                if (["small", "medium", "big"].includes(catergory)) {
                    desktopIconSize = catergory;
                }
                refresh();
                hideAllContextMenus();
            });
        }

        function hideListMenu() {
            if (listMenuShown) {
                $("#listMenu").animate({
                    height: "hide"
                }, 300);
                listMenuShown = false;
            }
        }

        function initModuleList() {
            $.ajax({
                url: "system/modules/list",
                success: function(data) {
                    moduleInstalled = data;
                    listModulesType("All");
                    checkFileSystemAccess();

                    //Hide the system setting button if access is denied
                    var allowSettingAccess = false;
                    moduleInstalled.forEach(thismod => {
                        if (thismod.Name == "System Setting"){
                            allowSettingAccess = true;
                        }
                    });
                    if (!allowSettingAccess){
                        $("#settingButton").hide();
                    }
                }
            });
        }

        function hookLaunchMenuEvents(){
            $(".groupType").on("click touchstart",function(){
                moduleTypeButtonClicked(this);
            });
            $(".poweroption").on("click touchstart",function(){
                logout();
            });
        }

        function moduleTypeButtonClicked(object) {
            var groupType = $(object).attr("group");
            listModulesType(groupType);
            $(".groupType.selected").removeClass("selected");
            $(object).addClass("selected");
            $("#searchResults").slideUp('fast');
            $("#searchBar").val("");
        }

        function listModulesType(groupType) {
            var listingItems = [];
            if (groupType == "All") {
                //List all of the items
                for (var i = 0; i < moduleInstalled.length; i++) {
                    if (moduleInstalled[i]["StartDir"] != "") {
                        listingItems.push(moduleInstalled[i]);
                    }
                }
            } else if (groupType == "Other") {
                var excludeList = ["Media", "Office", "Download", "Files", "Internet", "System Settings", "System Tools", "Utilities"];
                //List the Other groups
                for (var i = 0; i < moduleInstalled.length; i++) {
                    if (excludeList.includes(moduleInstalled[i]["Group"]) == false && moduleInstalled[i]["StartDir"] != "") {
                        console.log(moduleInstalled[i]["Group"]);
                        listingItems.push(moduleInstalled[i]);
                    }
                }
            } else {
                //List the given group
                for (var i = 0; i < moduleInstalled.length; i++) {
                    if (moduleInstalled[i]["Group"] == groupType && moduleInstalled[i]["StartDir"] != "") {
                        listingItems.push(moduleInstalled[i]);
                    }
                }
            }

            //List the item to the listmenu
            $("#listMenuItem").html("");
            for (var i = 0; i < listingItems.length; i++) {
                var thisModule = listingItems[i];
                generateListMenuItem(thisModule);
            }
            if (listingItems.length == 0) {
                $("#listMenuItem").html(`<div class="item module"><span><img src="img/system/not found.png">No WebApp found</span></div>`)
            }
        }

        //Given a module information and generate a selectable item in the list menu
        function generateListMenuItem(thisModule) {
            var icon = thisModule["IconPath"];
            if (icon == "") {
                //Use default system icon
                icon = "img/system/service.png";
            }
            var name = thisModule["Name"];
            var startdir = thisModule["StartDir"];
            var fwsupport = "false";
            if (thisModule["SupportFW"]) {
                fwsupport = "true";
            }
            $("#listMenuItem").append(`<div class="item module" module="${name}" startdir="${startdir}" fw="${fwsupport}" onclick="openModuleFromMenu(this);" ontouchstart="openModuleFromMenu(this);">
                        <span>
                            <img src="${icon}"></img>
                            ${name}
                        </span>
                    </div>`);
        }

        function searchModule(event) {
            if (event.which == 13) {
                var keyword = $("#searchBar").val().toLowerCase();
                var results = [];
                var lessAccurateResults = [];
                $(".groupType.selected").removeClass("selected");
                $("#searchResults").addClass("selected").slideDown('fast');
                //Load all search results
                for (var i = 0; i < moduleInstalled.length; i++) {
                    var thisModule = moduleInstalled[i];
                    if (thisModule["StartDir"] == ""){
                        continue;
                    }
                    var pathInfo = thisModule["StartDir"].split("/");
                    for (var j = 0; j < pathInfo.length; j++) {
                        pathInfo[j] = pathInfo[j].toLowerCase();
                    }
                    if (thisModule["Name"].toLowerCase().includes(keyword)) {
                        results.push(thisModule);
                    } else if (pathInfo.includes(keyword.toLowerCase()) || pathInfo.includes(keyword.split(" ").join("_").toLowerCase())) {
                        lessAccurateResults.push(thisModule);
                    }
                }
                results = results.concat(lessAccurateResults);
                //Append the results to list
                $("#listMenuItem").html("");
                for (var i = 0; i < results.length; i++) {
                    generateListMenuItem(results[i]);
                }

                if (results.length == 0) {
                    //Append a custom no results div to the content
                    $("#listMenuItem").append(` <div class="item">
                        <span>
                            <img src="img/system/not found.png"></img>
                            No Result
                        </span>
                    </div>`);
                }
            }
        }

        function openModuleFromMenu(object) {
            var moduleName = $(object).attr("module");
            openModule(moduleName);
        }

        function openModule(moduleName, callback=undefined) {
            $.get("system/modules/getLaunchPara?module=" + moduleName, function(data) {
                if (data.error !== undefined) {
                    //Something went wrong.
                    console.log("Unable to open module " + moduleName);
                    if (data.error == "Not logged in."){
                        //Session expired
                        window.location.href = "login.system";
                    }
                } else {
                    //Launch the given module
                    var url = data["StartDir"];
                    var size = [undefined, undefined];
                    var icon = "img/system/favicon.png";
                    if (data["IconPath"] != "") {
                        icon = data["IconPath"];
                    }
                    var title = data["Name"];
                    //Check if the module support fw mode. If yes, launch with fwmode url. IF not, launch to index
                    if (data["SupportFW"] == true) {
                        if (data["LaunchFWDir"] != null) {
                            url = data["LaunchFWDir"];
                        }
                        if (data["InitFWSize"] != null) {
                            size = data["InitFWSize"];
                        }
                    }

                    //Launch the given module
                    var uuid = newFloatWindow({
                        url: url,
                        width: size[0],
                        height: size[1],
                        appicon: icon,
                        title: title
                    });

                    if (callback !== undefined){
                        callback();
                    }
                    hideListMenu();
                }
            });
        }


        // ===================== FLOAT WINDOWS EVENTS =====================

        function hookFloatWindowEvents() {
            //Handle floatWindow mouse drag events
            $(".fwdragger").off("mousedown").on("mousedown", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwdown($(this).parent(), evt);
            });
            $(".fwdragger").off("mousemove").on("mousemove", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwmove($(this).parent(), evt);
            });
            $(".fwdragger").off("mouseup").on("mouseup", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwup($(this).parent(), evt);
            });

            $(".fwdragger").off("touchstart").on("touchstart", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwdown($(this).parent(), evt);
            });
            $(".fwdragger").off("touchmove").on("touchmove", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwmove($(this).parent(), evt);
            });
            $(".fwdragger").off("touchend").on("touchend", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                fwup($(this).parent(), evt);
            });

            $(".fwdragger").off("dblclick").on("dblclick", function(evt) {
                //Activate full screen
                evt.preventDefault();
                evt.stopImmediatePropagation();
                //Emulate keypress on maximize btn
                toggleMax($(this).parent().find(".maxToogleButton").parent()[0], evt);
            });

            //Floatwindow operations for touch devices
            $(".maxtoggle").off("touchstart").on("touchstart",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                toggleMax(this, evt);
            });

            $(".mintoggle").off("touchstart").on("touchstart",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                min(this, evt);
            });

            $(".closetoggle").off("touchstart").on("touchstart",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                closeFloatWindow(this,evt);
            });

            //floatWindow events for mouse
            $(".maxtoggle").off("mousedown").on("mousedown",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                toggleMax(this, evt);
            });

            $(".mintoggle").off("mousedown").on("mousedown",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                min(this, evt);
            });

            $(".closetoggle").off("mousedown").on("mousedown",function(evt){
                evt.preventDefault();
                evt.stopImmediatePropagation();
                closeFloatWindow(this,evt);
            });

            //Float Window events for resizing
            $(".iframewrapper").off("mousedown").on("mousedown", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                if ($(this).parent().hasClass("fixedsize")) {
                    return false;
                }
                resizeDown($(this).parent(), evt);
            });

            $(".iframewrapper").off("mousemove").on("mousemove", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                if (resizingWindow == true) {
                    //Resizeing Move
                    resizeMove($(this).parent(), evt);
                } else {
                    //Dragdropping move
                    fwmove($(this).parent(), evt);
                }

            });

            $(".iframewrapper").off("mouseup").on("mouseup", function(evt) {
                evt.preventDefault();
                evt.stopImmediatePropagation();
                resizeUp($(this).parent(), evt);
            });


            $(".iframewrapper").off("mouseover").on("mouseover", function(evt) {
                var object = $(this).parent();
                if ($(object).hasClass("fixedsize")) {
                    return false;
                }
                var dx = event.pageX - $(object).find(".iframewrapper").offset().left;
                var dy = event.pageY - $(object).offset().top;
                if (dx < 10 && dy > $(object).height() - 10) {
                    //Left Bottom Corner
                    $(".iframewrapper").attr("class", "iframewrapper leftCorner");
                } else if (dx > $(object).width() - 10 && dy > $(object).height() - 10) {
                    //Right Bottom Corner
                    $(".iframewrapper").attr("class", "iframewrapper rightCorner");
                } else if (dx < 10) {
                    //Dragging left edge
                    $(".iframewrapper").attr("class", "iframewrapper widthHover");
                } else if (dx > $(object).width() - 10) {
                    //Dragging right edge
                    $(".iframewrapper").attr("class", "iframewrapper widthHover");
                } else if (dy > $(object).height() - 10) {
                    //Bottom Edge
                    $(".iframewrapper").attr("class", "iframewrapper heighHover");
                } else {
                    //???
                    $(".iframewrapper").attr("class", "iframewrapper");
                }
            });

            //Hook events on the floatWindow button
            $(".floatWindowButton").off("click touchstart").on("click touchstart", function(event) {
                event.preventDefault();
                event.stopImmediatePropagation();
                $("#stackedWindowList").css("left", $(this).offset().left);
                //Generate the stackedWindowList
                var windowIdList = JSON.parse(decodeURIComponent($(this).attr("windowidgroup")));
                if (windowIdList.length == 1) {
                    //There are only one window in this group. Show it anyway
                    var targetFW = getFloatWindowByID(windowIdList[0]);
                    $(targetFW).fadeIn(100);
                    MoveFloatWindowToTop(targetFW);
                    stackedFloatWindowListShwon = false;
                    $("#stackedWindowList").hide();
                } else {
                    //Get icon for each windows and build the list objects
                    $("#stackedWindowList").html("");
                    for (var i = 0; i < windowIdList.length; i++) {
                        var iconURL = getFloatWindowIconByID(windowIdList[i]);
                        var title = getFloatWindowTitleByID(windowIdList[i]);
                        $("#stackedWindowList").append(`<div class="item clickable" windowId="${windowIdList[i]}" onclick="bringFloatWindowToFrontByFWB(this,event);"  ontouchstart="bringFloatWindowToFrontByFWB(this,event);"><span><img src="${iconURL}"></img>${title}</span><div class="closebtn" onclick="closeFWviaFWB(this,event);"><img src="img/system/close.png"></img></div></div>`);
                    }
                    $("#stackedWindowList").show();
                    stackedFloatWindowListShwon = true;
                }

            });
        }

        var tapedTwiceTouch = false;
        var timeoutObject;
        var tappingTarget = undefined;
        function doubleTouchHandler(object, event, callback) {
            if(!tapedTwiceTouch) {
                tapedTwiceTouch = true;
                tappingTarget = object;
                timeoutObject = setTimeout( function() { tapedTwiceTouch = false; }, 300 );
                return false;
            }
            if (tappingTarget == object){
                //Double click on the same icon
                event.preventDefault();
                callback(object, event);
                tappingTarget = undefined;
            }else{
                //Although it touch twice within 300ms, but it is on different target
                //Update the tab target instead.
                tappingTarget = object;
                tapedTwiceTouch = true;
                clearTimeout(timeoutObject);
                timeoutObject = setTimeout( function() { tapedTwiceTouch = false; }, 300 );
            }
           
        }

        function openViaTouch(object, event){
            iconDoubleClicked(object,event);
        }

        //Handle focus through floatWindow taskbar button
        function bringFloatWindowToFrontByFWB(object, event) {
            event.preventDefault();
            event.stopImmediatePropagation();
            var targetWFID = $(object).attr("windowId");
            var targetFW = getFloatWindowByID(targetWFID);
            $(targetFW).fadeIn(100);
            MoveFloatWindowToTop(targetFW);
            stackedFloatWindowListShwon = false;
            $("#stackedWindowList").hide();
        }

        function closeFWviaFWB(object, event) {
            event.preventDefault();
            event.stopImmediatePropagation();
            var targetWFID = $(object).parent().attr("windowId");
            var targetFW = getFloatWindowByID(targetWFID);
            closeFloatWindow(targetFW.find(".close"), event);
            $(object).parent().remove();
            if ($("#stackedWindowList").find(".item").length == 0) {
                //There are no more things in this tab. Close this list as well.
                stackedFloatWindowListShwon = false;
                $("#stackedWindowList").hide();
            }
        }


        //Handle floatWindow resize events
        let resizingWindowTarget;
        let resizingMinX = 0;
        let minxWidth = 120;
        let minHeight = 100;
        function resizeDown(object, event) {
            //Mouse down, start resizing
            resizingWindow = true;
            resizingWindowTarget = object;
            resizingMinX = $(object).offset().left + $(object).width() - minxWidth;
            MoveFloatWindowToTop(object);
            if ($(object).hasClass("topmost")){
                //Top most windows
                $("#tfwdragpanel").show();
            }else{
                //Normal Windows
                $('.floatWindow.topmost').css("pointer-events", "none");
                $('.floatWindow.topmost').css("opacity", 0.7);
                $("#fwdragpanel").show();
            }
          
            
            $(object).find(".iframecover").show();

            //Check which edge is the user dragging
            var dx = event.pageX - $(object).find(".iframewrapper").offset().left;
            var dy = event.pageY - $(object).offset().top;
            
            if (dx < 10 && dy > $(object).height() - 10) {
                //Left Bottom Corner
                resizingEdgeID = 4;
                $(object).find(".iframewrapper").css('cursor', 'sw-resize');
            } else if (dx > $(object).width() - 10 && dy > $(object).height() - 10) {
                //Right Bottom Corner
                resizingEdgeID = 2;
                $(object).find(".iframewrapper").css('cursor', 'se-resize');
            } else if (dx < 10) {
                //Dragging left edge
                resizingEdgeID = 5;
                $(object).find(".iframewrapper").css('cursor', 'w-resize');
            } else if (dx > $(object).width() - 10) {
                //Dragging right edge
                resizingEdgeID = 1;
                $(object).find(".iframewrapper").css('cursor', 'w-resize');
            } else if (dy > $(object).height() - 10) {
                //Bottom Edge
                resizingEdgeID = 3;
                $(object).find(".iframewrapper").css('cursor', 's-resize');
            }
        }

        function resizeMove(object, event) {
            var posX = event.pageX;
            var posY = event.pageY;
            
            if (resizingWindow == true && resizingEdgeID != 0) {
                if (resizingEdgeID == 1) {
                    //Width = posX - floatWindow width + 2 (for border width)
                    var newWidth = posX - $(object).offset().left + 2;
                    $(object).css("width", Math.max(newWidth, minxWidth));
                } else if (resizingEdgeID == 2) {
                    var newWidth = posX - $(object).offset().left + 2;
                    var newHeight = posY - $(object).offset().top + 2;
                    $(object).css({
                        width: Math.max(newWidth, minxWidth),
                        height: Math.max(newHeight, minHeight)
                    });
                } else if (resizingEdgeID == 3) {
                    var newHeight = posY - $(object).offset().top + 2;
                    $(object).css("height", Math.max(newHeight,minHeight));
                } else if (resizingEdgeID == 4) {
                    var newWidth = $(object).offset().left - posX + $(object).width();
                    var newHeight = posY - $(object).offset().top + 2;
                    
                    if (newWidth < minxWidth){
                        posX = resizingMinX;
                    }
                    
                    $(object).css({
                        width: Math.max(newWidth, minxWidth),
                        height: Math.max(newHeight, minHeight),
                        left: posX
                    });
                } else if (resizingEdgeID == 5) {
                    var newWidth = $(object).offset().left - posX + $(object).width();
                    if (newWidth < minxWidth){
                        posX = resizingMinX;
                    }
                    
                    $(object).css({
                        width: Math.max(newWidth, minxWidth),
                        left: posX
                    });
                }
            }
        }

        function resizeUp(object, event) {
            resizingWindow = false;
            resizingEdgeID = 0;
            $("#fwdragpanel").hide();
            $("#tfwdragpanel").hide();
            $('.floatWindow.topmost').css("pointer-events", "auto");
            $('.floatWindow.topmost').css("opacity", 1);

            $(object).find(".iframecover").hide();
            $(object).find(".iframewrapper").css('cursor', '');
            //Force minmium width and height on any floatWindow objects
            if ($(object).width() < 120) {
                $(object).css("width", "120px");
            }
            if ($(object).height() < 120) {
                $(object).css("height", "120px");
            }
            resizingWindowTarget = undefined;

            $(".topmost").show();

        }

        //Hook body mousemove assistant events
        $("body").on("mousemove", function(evt) {
            if (focusedWindow !== undefined && movingWindow == true) {
                fwmove(focusedWindow, evt);
            } else if (focusedWindow !== undefined && resizingWindow == true) {
                resizeMove(focusedWindow, evt);
            } else if (multiSelecting == true) {
                movingMultiSelectionArea(evt);
            }
        });

        //Hook body clicke vents
        $("body").on("click", function(evt) {
            if (stackedFloatWindowListShwon == true) {
                //Hide the stacked Float Window list if it is shown
                $("#stackedWindowList").hide();
                stackedFloatWindowListShwon = false;
            }

            if (renameMode == true){
                //Exit rename mode if the target is not on the editing launchIcon
                console.log(evt.target);
                if ($(evt.target).is("body")){
                    //End rename mode
                    exitRenameMode();
                }
            }
        });

        //Convert touch events to click events
        function mapEventFromTouch(event){
            if (typeof event.originalEvent == "undefined"){
                //Mouse click / down / up events
                return event;
            }
            try{
                //Touch events
                if (typeof event.pageX == "undefined"){
                    event.pageX = event.originalEvent.touches[0].pageX;
                }
                if (typeof event.pageY == "undefined"){
                    event.pageY = event.originalEvent.touches[0].pageY;
                }
                return event;
            }catch{
                return event;
            }
           
        }

        //Please pass in the floatWindow object instead of the dragger
        function fwdown(object, event) {
            event = mapEventFromTouch(event);

            //Hide all contenxt menus
            hideAllContextMenus();

            //Move the window to the top layer
            MoveFloatWindowToTop(object);
            //Show the background drag panel
            if ($(object).hasClass("topmost")){
                $("#tfwdragpanel").show();
            }else{
                $('.floatWindow.topmost').css("pointer-events", "none");
                $('.floatWindow.topmost').css("opacity", 0.7);
                $("#fwdragpanel").show();
            }
            
            
            //Get the relative click offset of the down event
            clickDownOffset = [event.pageX - $(object).offset().left, event.pageY - $(object).offset().top];
            movingWindow = true;
            $(object).find(".iframecover").show();
        } 

        function fwmove(object, event) {
            event = mapEventFromTouch(event);
            if (movingWindow == true) {
                //Check if the object is maximized. If yes, minimized it
                if ($(object).attr("max") == "true") {
                    var originalSize = JSON.parse(decodeURIComponent($(object).attr("orgsize")));
                    $(object).attr("max", "false");
                    $(object).attr("orgsize", "");
                    //Calculate new left right offsets
                    var clickRatio = event.pageX / window.innerWidth;
                    var newLeft = event.pageX - (clickRatio * originalSize[0]);
                    originalSize
                    $(object).css({
                        width: originalSize[0],
                        height: originalSize[1],
                        left: newLeft,
                        top: event.Y - 2
                    });
                    clickDownOffset[0] = clickRatio * originalSize[0];
                    clickDownOffset[1] = 2;
                    //Restore the maximize icon
                    $(object).find(".maxToogleButton").attr('src', "img/system/max.png")
                }

                $(object).css("left", event.pageX - clickDownOffset[0]);
                $(object).css("top", event.pageY - clickDownOffset[1]);
            }


        }

        function fwup(object, event) {
            event = mapEventFromTouch(event);
            if (movingWindow) {
                $("#fwdragpanel").hide();
                $("#tfwdragpanel").hide();
                $('.floatWindow.topmost').css("pointer-events", "auto");
                $('.floatWindow.topmost').css("opacity", 1);

                $(object).find(".iframecover").hide();
                movingWindow = false;

                //Check if the window location is drag to the edge of the screen. If yes, toggle half screen fullscreen
                //Not need to check for if max because it must be minimized during drag move
                var dockMode = false;
                if (event.pageX < 10) {
                    //Dock to left
                    var originalSize = [$(object).width(), $(object).height(), $(object).offset().left, $(object).offset().top];
                    $(object).attr("orgsize", encodeURIComponent(JSON.stringify(originalSize)));
                    $(object).css({
                        width: "50%",
                        height: "calc(100% - 36px)",
                        left: "0px",
                        top: "0px"
                    });
                    $(object).attr("max", "true");
                    $(object).find(".maxToogleButton").attr('src', "img/system/restore.png");
                } else if (event.pageX > window.innerWidth - 10) {
                    //Dock to right
                    var originalSize = [$(object).width(), $(object).height(), $(object).offset().left, $(object).offset().top];
                    $(object).attr("orgsize", encodeURIComponent(JSON.stringify(originalSize)));
                    $(object).css({
                        width: "50%",
                        height: "calc(100% - 36px)",
                        left: (window.innerWidth / 2) + "px",
                        top: "0px"
                    });
                    $(object).attr("max", "true");
                    $(object).find(".maxToogleButton").attr('src', "img/system/restore.png");
                }
            }

        }

        //Handle floatWindow min, max and close
        function min(object, event) {
            event.preventDefault();
            event.stopImmediatePropagation();
            if (event.type == "mousedown" && event.which != 1) {
                //Ignore right mouse down
                return;
            }
            var fw = $(object).parent().parent().parent();
            $(fw).fadeOut(100);
        }

        function toggleMax(object, event) {
            event.preventDefault();
            event.stopImmediatePropagation();
            event = mapEventFromTouch(event);
            if (event.type == "mousedown" && event.which != 1) {
                //Ignore right mouse down
                return;
            }
            if ($(object).css('display') == 'none'){
                //This windows do not allow resizing. 
                return;
            }
            var fw = $(object).parent().parent().parent();
            var maxedAlready = $(fw).attr('max');
            MoveFloatWindowToTop(fw);
            //Add transition animation
            $(fw).css({
                "transition": "width 0.3s ease-out,  height 0.3s ease-out, top 0.3s ease-out, left 0.3s ease-out"
            });

            //Remove transition animation after complete wth 50ms buffer
            setTimeout(function(){
                $(fw).css({
                "transition": ""
                });
            }, 350);
           
            if (maxedAlready == "true") {
                //Resize to original
                console.log($(fw));
                var originalSize = JSON.parse(decodeURIComponent($(fw).attr("orgsize")));
               
                $(fw).attr("max", "false");
                $(fw).attr("orgsize", "");
                $(fw).css({
                    width: originalSize[0],
                    height: originalSize[1],
                    left: originalSize[2],
                    top: originalSize[3]
                });
                $(fw).find(".maxToogleButton").attr('src', "img/system/max.png");
            } else {
                //Maxmize
                var originalSize = [$(fw).width(), $(fw).height(), $(fw).offset().left, $(fw).offset().top];
                $(fw).attr("orgsize", encodeURIComponent(JSON.stringify(originalSize)));
                $(fw).css({
                    width: "100%",
                    height: "calc(100% - 36px)",
                    left: "0px",
                    top: "0px"
                });
                $(fw).attr("max", "true");
                $(fw).find(".maxToogleButton").attr('src', "img/system/restore.png")
            }
        }

        function closeFloatWindow(object, event) {
            if (event.type == "mousedown" && event.which != 1) {
                //Ignore right mouse down on close buttons
                return;
            }
            event.preventDefault();
            event.stopImmediatePropagation();
            if ($(object).is("img")) {
                object = $(object).panret();
            }
            var fw = $(object).parent().parent().parent();
            var contentWindow = $(fw).find("iframe")[0].contentWindow;
            try {
                if (contentWindow.ao_module_close === undefined) {
                    //This module do not use ao_module wrapper. Close it directly.
                    closeFwProcess($(fw).attr("windowId"));
                } else {
                    //Pass the closing events to the window itself
                    contentWindow.ao_module_close();
                }
            } catch (ex) {
                //Problems of closing floatWindow. Force closing.
                closeFwProcess($(fw).attr("windowId"));
            }

            //Find the btn object that contains the windowID
            var closingWindowID = $(fw).attr("windowId");
            resizeAllFloatWindowButtons();
            hideAllContextMenus();
        }

        function findFloatWindowButtonWithID(windowID) {
            var targetButtonObject;
            $(".floatWindowButton").each(function() {
                var originalIDlist = JSON.parse(decodeURIComponent($(this).attr('windowIDGroup')));
                originalIDlist = originalIDlist.map(String);
                if (originalIDlist.includes(windowID)) {
                    targetButtonObject = $(this);
                }
            });
            return targetButtonObject;
        }

        function closeFwProcess(windowID) {
            //Close the floatwindow process
            $(".floatWindow").each(function() {
                if ($(this).attr("windowId") == windowID) {
                    $(this).remove();
                }
            });

            //Remove the button from menu as well
            var targetTab = findFloatWindowButtonWithID(windowID);
            var originalIDlist = JSON.parse(decodeURIComponent($(targetTab).attr('windowIDGroup')));
            originalIDlist = originalIDlist.map(String);
            if (originalIDlist.length > 1) {
                //There are more than 1 floatWindow in this tab.
                var newIDList = [];
                for (var i = 0; i < originalIDlist.length; i++) {
                    if (originalIDlist[i] != windowID) {
                        newIDList.push(originalIDlist[i]);
                    }
                }
                newIDListAttr = encodeURIComponent(JSON.stringify(newIDList));
                //console.log("Newlist",newIDList);
                $(targetTab).attr("windowIDGroup", newIDListAttr);
            } else {
                //This is the only floatWindow in this tab. Remove the tab itself.
                $(targetTab).remove();
            }
        }

        function PinFloatWindowToTopMostMode(object){
            if ($(".floatwindow.topmost").length >= 100){
                //Cannot add more topmost fw
                console.log("Max number of top most floatWindow reached")
                return
            }
            //Move the current fw to top, its z index is now 101
            MoveFloatWindowToTop(object);
            var windowID = $(object).attr("windowId");
            console.log("[Desktop] Pinning window ID: " + windowID)
            //Move this to fixed layer position
            $(object).addClass("topmost");
            $(object).css("z-index", 501);
        }

        function UnpinFloatWindowFromTopMostMode(object){
            $(object).removeClass("topmost");
            if (focusedWindow == object){
                focusedWindow = undefined;
                $(object).css("z-index", 1);
            }
            
            MoveFloatWindowToTop(object);
        }

        function MoveFloatWindowToTop(object) {
            var windowID = $(object).attr("windowId");
            var windowZindex = $(object).css("z-index");
            //Shift down all floatWindows that has z-index higher than this window by 2
            if (windowID == $(focusedWindow).attr("windowId")) {
                //This window already at the top
                return;
            }

            if ($(focusedWindow).hasClass("topmost")){
                //The previous focused windows is topmost. Move it to layer 109
                $(focusedWindow).css("z-index", 500);
                $(".floatWindow.topmost").each(function(){
                    var thisWindowZIndex = $(this).css("z-index");
                    if (parseInt(thisWindowZIndex) > parseInt(windowZindex)) {
                        if ($(this).attr("windowId") != windowID) {
                            $(this).css("z-index", thisWindowZIndex - 1);
                        }
                    }
                });
            }else{
                //The previous focused windows is normal windows. Move it to 100
                $(focusedWindow).css("z-index", 100);

                //Shift all the other windows down
                $(".floatWindow").each(function() {
                    if ($(this).hasClass("topmost")){
                        return;
                    }
                    var thisWindowZIndex = $(this).css("z-index");
                    if (parseInt(thisWindowZIndex) > parseInt(windowZindex)) {
                        if ($(this).attr("windowId") != windowID) {
                            $(this).css("z-index", thisWindowZIndex - 1);
                            //console.log($(this).attr("windowId"), $(this).css("z-index"));
                        }
                    }
                });
            }

            if ($(object).hasClass("topmost")){
                //The new windows is a topmost window
                $(object).css("z-index", 501);
            }else{
                $(object).css("z-index", 101);
            }
           
            
            focusedWindow = $(object);
            
            //Check if this div is hidden. If not, fade it in.
            if ($(object).is(":hidden")) {
                $(object).fadeIn(100);
            }

        }

        function newFloatWindow(config, callback=undefined) {
            //Check if the number of floatWindow already reaching its maxmium
            if ($(".floatWindow").length > maxWindowCount){
                console.log("Max number of floatWindow reached.")
                return;
            }
            //Generate new floatwindow startup config from object
            var url = defaultOrKey(config, "about:blank", "url");
            var uuid = defaultOrKey(config, (new Date()).getTime(), "uid");
            var width = defaultOrKey(config, 854, "width");
            var height = defaultOrKey(config, 480, "height");
            var moduleIcon = defaultOrKey(config, "img/system/favicon.png", "appicon");
            var title = defaultOrKey(config, "New floatWindow", "title");
            var left = defaultOrKey(config, 100, "left");
            var top = defaultOrKey(config, 100, "top");
            var parentWindowID = defaultOrKey(config, "", "parent");
            var callbackFunctionName = defaultOrKey(config, "", "callback");
            var bgcolor = defaultOrKey(config, "", "background-color");

            //Encode function name
            callbackFunctionName = encodeURIComponent(callbackFunctionName);

            //Validate paramters
            if (width > window.innerWidth) {
                width = window.innerWidth;
            }
            if (height > window.innerHeight) {
                height = window.innerHeight;
            }
            if (left + width > window.innerWidth) {
                left = 0;
            }
            if (top + height > window.innerHeight) {
                top = 0;
            }

            //Check if the location already cotain any window
            while (floatWindowLocationDuplicated(left, top)) {
                left += 30;
                top += 30;
            }

            //Check if the opening require a overwrite on background color
            var backgroundStyle = "";
            if (bgcolor !== ""){
                backgroundStyle = `background-color: ${bgcolor};`;
            }

            //Check if the theme color is applied. If yes, generate the floatWindow with overwritten theem color
            var overWriteThemeColor = "";
            if (desktopThemeColor != ""){
                overWriteThemeColor = `background-color: ${hexToRgbA(desktopThemeColor, 0.85)}`;
            }

            //Append the floatWindow into the body
            $("body").append(`<div class="floatWindow" windowId="${uuid}" parent="${parentWindowID}" callback="${callbackFunctionName}" style="z-index:0; width:${width}px; height:${height}px; left:${left}px; top:${top}px;${backgroundStyle}">
                                    <div class="controls fwdragger themeColorSolid" style="${overWriteThemeColor}">
                                        <img class="moduleicon" src="${moduleIcon}"></img>
                                        <div class="title">${title}</div>
                                        <div class="fwcontrol">
                                            <div class="buttons mintoggle">
                                                <img src="img/system/min.png"></img>
                                            </div>
                                            <div class="buttons maxtoggle">
                                                <img class="maxToogleButton" src="img/system/max.png"></img>
                                            </div>
                                            <div class="buttons closetoggle close">
                                                <img src="img/system/close.png"></img>
                                            </div>
                                        </div>
                                    </div>
                                    <div class="iframewrapper">
                                        <iframe src="${url}" allowfullscreen="true"></iframe>
                                        <div class="iframecover"></div>
                                    </div>
                                </div>`);
            var newWindowObject = getFloatWindowByID(uuid);
            //console.log(newWindowObject);
            MoveFloatWindowToTop(newWindowObject);

            //Append window to taskbar
            var groupInfo = url.split("/");
            var group = "";
            if (groupInfo.length == 1) {
                group = groupInfo[0];
            } else {
                groupInfo.pop();
                group = groupInfo.join("/");
            }

            //File system windows require special grouping based on their filename
            if (url.includes("SystemAO/file_system/")){
                group = url.split("/").pop().split(".").join("_");
            }else if (url.includes("SystemAO/utilities/")){
                group = url.split("/").pop().split(".").join("_");
                if (group.includes("#")){
                    group = group.split("#")[0];
                }
            }

            //Check if the group already exists.
            var groupExists = false;
            var targetGroupingTab;
            $(".floatWindowButton").each(function() {
                if ($(this).attr("group") == group) {
                    groupExists = true;
                    targetGroupingTab = $(this);
                }
            });

            //Check if the group is System Explorer and held special treatment if yes
            if (group.split("/").shift() == "SystemAO") {
                if (url.includes("file_explorer.html") && groupExists) {
                    //File Manager. Group them
                    group = "file_explorer";
                }else if (url.includes("utilities") && groupExists){
                    //Allow grouping

                } else {
                    //Do not group anything from SystemAO other than file explorer
                    groupExists = false;
                }
            }

            if (groupExists == false) {
                //Append the item to taskbar
                var windowIDGroup = encodeURIComponent(JSON.stringify([uuid]));
                var floatWindowButtonObject = ` <div class="item clickable floatWindowButton onscreen" group="${group}" windowIDGroup="${windowIDGroup}">
                                                        <img class="floatWindowAppIcon" src="${moduleIcon}"></img>
                                                        <p class="floatWindowTitle">${title}</p>
                                                    </div>`;
                $(".navimenu").append(floatWindowButtonObject);
            } else {
                //Group already exists. Add tab into that group.
                var originalIDlist = JSON.parse(decodeURIComponent($(targetGroupingTab).attr('windowIDGroup')));
                originalIDlist.push(uuid);
                //Encode and put the group list back to the object
                var newIDList = encodeURIComponent(JSON.stringify(originalIDlist));
                $(targetGroupingTab).attr("windowIDGroup", newIDList);
            }
            hookFloatWindowEvents();
            resizeAllFloatWindowButtons();

            if (callback !== undefined){
                callback(uuid);
            }
        }

        function resizeAllFloatWindowButtons() {
            var fwbTotalWidth = $(".floatWindowButton").length * 200;
            if (fwbTotalWidth > window.innerWidth * 0.7) {
                $(".floatWindowButton").addClass("hideText");
            } else {
                $(".floatWindowButton").removeClass("hideText");
            }
        }


        function floatWindowLocationDuplicated(left, top) {
            var duplicated = false;
            $(".floatWindow").each(function() {
                if ($(this).offset().left == left && $(this).offset().top == top) {
                    duplicated = true;
                }
            });
            return duplicated;
        }

        function defaultOrKey(object, defaultvalue, key) {
            if (object[key] !== undefined) {
                return object[key];
            }
            return defaultvalue;
        }

        function getFloatWindowByID(id) {
            var targetWindow = undefined;
            $(".floatWindow").each(function() {
                if ($(this).attr("windowId") == id) {
                    targetWindow = $(this);
                }
            });
            return targetWindow;
        }
        
        function getFloatWindowIconByID(id) {
            var targetIconURL = "img/system/favicon.png";
            $(".floatWindow").each(function() {
                if ($(this).attr("windowId") == id) {
                    //This window ID matched the target fw
                    targetIconURL = $(this).find(".moduleicon").attr('src');
                }
            });
            return targetIconURL;
        }

        function getFloatWindowTitleByID(id) {
            var title = "";
            $(".floatWindow").each(function() {
                if ($(this).attr("windowId") == id) {
                    //This window ID matched the target fw
                    title = $(this).find(".title").text();
                }
            });
            return title;
        }

        function setFloatWindowResizePolicy(targetFWId, resizble = true) {
            var targetfw = getFloatWindowByID(targetFWId);
            if (resizble) {
                $(targetfw).find(".maxtoggle").show();
                $(targetfw).removeClass("fixedsize");
            } else {
                $(targetfw).find(".maxtoggle").hide();
                $(targetfw).addClass("fixedsize");
            }
        }

        function setFloatWindowSize(targetFWId, newWidth, newHeight) {
            var targetfw = getFloatWindowByID(targetFWId);
            $(targetfw).css({
                height: newHeight,
                width: newWidth
            });
        }

        function setFloatWindowTitle(targetFWId, newTitle) {
            var targetfw = getFloatWindowByID(targetFWId);
            $(targetfw).find(".title").text(newTitle);
        }

        function openFileWithModule(moduleLaunchInfo, openFileList) {
            var url = moduleLaunchInfo["StartDir"];
            var size = [undefined, undefined];
            var title = moduleLaunchInfo["Name"];
            var icon = "img/system/favicon.png";
            if (moduleLaunchInfo["IconPath"] != "") {
                icon = moduleLaunchInfo["IconPath"];
            }
            //Use floatWindow if exists
            if (moduleLaunchInfo["SupportFW"] == true && moduleLaunchInfo["LaunchFWDir"] != "") {
                url = moduleLaunchInfo["LaunchFWDir"];
                if (moduleLaunchInfo["InitFWSize"] !== null) {
                    size = moduleLaunchInfo["InitFWSize"]
                }
            }
            //Use embedded mode if exists
            if (moduleLaunchInfo["SupportEmb"] == true && moduleLaunchInfo["LaunchEmb"] != "") {
                url = moduleLaunchInfo["LaunchEmb"];
                if (moduleLaunchInfo["InitEmbSize"] !== null) {
                    size = moduleLaunchInfo["InitEmbSize"]
                }
            }

            var openParamter = encodeURIComponent(JSON.stringify(openFileList));

            //Add launch files info and launch floatWindow
            parent.newFloatWindow({
                url: url + "#" + openParamter,
                width: size[0],
                height: size[1],
                appicon: icon,
                title: title
            });
        }

        //====================== DESKTOP THEME RELATED FUNCTIONS =====================

        //Initiate desktop theme list and user current theme
        function initDesktopTheme() {
            //Update 1 April 2021: Check if the user customize the desktop with the given path

            $.get("system/desktop/theme", function(data) {
                //Return a list of theme stored on the system
                desktopThemeList = data;
                $.get("system/desktop/theme?get=true", function(data) {
                    //Get the user theme settings
                    changeDesktopTheme(data);
                });
            });
        }

        function setDesktopTheme(themeName) {
            $.get("system/desktop/theme?set=" + themeName, function(data) {
                //Get the user theme settings
                changeDesktopTheme(themeName);
                if (data.includes("Error")) {
                    console.log(data);
                }
            });
        }

        //Actiave background cross fade changing animation
        function initBackgroundSwitchingAnimation() {
            if (localStorage.getItem("ao/desktop/backgroundInterval") !== null && !isNaN(parseInt(localStorage.getItem("ao/desktop/backgroundInterval")))){
                //Localstorage has interval setting that is not NaN
                backgroundCrossfadeInterval = parseInt(localStorage.getItem("ao/desktop/backgroundInterval")) * 1000;
            }

            backgroundIntervalCounter = setInterval(function() {
                $("body").css("background-image", "none").css({
                    'background-color': '#000000'
                });
                $(".showBackground").removeClass("showBackground");
                $($(".backgroundFrame")[nextSlideshowIndex]).addClass("showBackground");
                nextSlideshowIndex++;
                if (nextSlideshowIndex > currentBackgroundList.length - 1) {
                    nextSlideshowIndex = 0;
                }
            }, backgroundCrossfadeInterval);
        }

        //Function for changing the desktop theme
        function changeDesktopTheme(targetThemeName) {
            currentUserTheme = targetThemeName;

            if (currentUserTheme.includes(":/") == false){
                //This is default theme pack name
                for (var i = 0; i < desktopThemeList.length; i++) {
                    var thisTheme = desktopThemeList[i];
                    if (thisTheme["Theme"] == targetThemeName) {
                        //Use this config as the target theme
                        currentBackgroundList = thisTheme["Bglist"];
                        break;
                    }
                }
                //Initiate the background image.
                $("#bgwrapper").html("");
                for (var i = 0; i < currentBackgroundList.length; i++) {
                    var id = "dbg" + i;
                    var thisImage = "img/desktop/bg/" + currentUserTheme + "/" + currentBackgroundList[i];
                    $("#bgwrapper").append('<img id="' + id + '" rel="preload" draggable="false" style="background-image:url(\'' + thisImage + '\');" class="backgroundFrame"></img>');
                }
                setTimeout(function() {
                    $("#dbg0").addClass("showBackground");
                }, 300);

                if (currentBackgroundList.length == 1) {
                    //There are only 1 background in this pack. Make the next slice be 0 as well.
                    nextSlideshowIndex = 0;
                }else if (currentBackgroundList.length == 0){
                    //Background no longer exists. Change to default
                    changeDesktopTheme("default");
                } else {
                    nextSlideshowIndex = 1;
                }
            }else{
                //This is user defined photo file
                $.get("system/desktop/theme?load=" + targetThemeName, function(data){
                    if (data.error !== undefined){
                        //The folder is gone. Use default instead
                        console.log(data.error);
                        changeDesktopTheme("default");
                    }else{
                        //OK! Load it
                        currentBackgroundList = data;
     
                        $("#bgwrapper").html("");
                        for (var i = 0; i < currentBackgroundList.length; i++) {
                            var id = "dbg" + i;
                            var thisImage = "media/?file=" + currentBackgroundList[i];
                            $("#bgwrapper").append('<img id="' + id + '" rel="preload" draggable="false" style="background-image:url(\'' + thisImage + '\');" class="backgroundFrame"></img>');
                        }
                        setTimeout(function() {
                            $("#dbg0").addClass("showBackground");
                        }, 300);

                        if (currentBackgroundList.length == 1) {
                            //There are only 1 background in this pack. Make the next slice be 0 as well.
                            nextSlideshowIndex = 0;
                        }else if (currentBackgroundList.length == 0){
                            //Background no longer exists. Change to default
                            changeDesktopTheme("default");
                        } else {
                            nextSlideshowIndex = 1;
                        }

                    }
                });
               
            }

        }

        $("#bgwrapper").on("click", function(evt) {
            evt.preventDefault();
        });

        //================== DESKTOP FILE LOCATION FUNCTIONS ====================
        function initDesktopFiles(optionObject = {}, callback = undefined) {
            $.get("system/desktop/listDesktop", function(data) {
                //Prase optionObject
                var noflash = false;
                if (typeof optionObject.noflash !== "undefined"){
                    noflash = optionObject.noflash;
                }
                if (noflash){
                    //Only clean out those object that not exists in the new filelist
                    var existsingFilepaths = [];
                    if (data != null){
                        for (var i =0; i < data.length; i++){
                            existsingFilepaths.push(data[i].Filepath);
                        }
                    }else{
                        //Nothing on desktop
                    }
                   
                    //console.log(existsingFilepaths);
                    //If the launchIcon path is not in the latest list, remove it from desktop
                    $(".launchIcon").each(function(){
                        if (existsingFilepaths.includes($(this).attr("filepath")) == false){
                           $(this).remove();
                        }
                    });
                }else{
                    //Cleanup all previous icons
                    $("#iconwrapper").html("");
                }
                //Allocate new items location
                var iheight = 106;
                var iwidth = 70;
                var padding = 16;
                if (desktopIconSize == "small") {
                    iheight = 82;
                    iwidth = 50;
                } else if (desktopIconSize == "medium") {
                    iheight = 106;
                    iwidth = 70;
                } else if (desktopIconSize == "big") {
                    iheight = 124;
                    iwidth = 84;
                }

                iconSize = [iwidth, iheight];
                var screenHeight = window.innerHeight;
                var screenWidth = window.innerWidth;

                var vc = Math.floor((screenHeight - 20 - padding) / iheight);
                var hc = Math.floor((screenWidth - padding) / iwidth);

                var slots = []; //A 2D array for storing relative to absolute locations
                for (var j = 0; j < hc; j++) {
                    var thisLocationList = [];
                    for (var i = 0; i < vc; i++) {
                        var thisLocation = [j * iwidth + padding, i * iheight + padding];
                        thisLocationList.push(thisLocation);
                    }
                    slots.push(thisLocationList);
                }
                //Store the root position (0,0) in rootPosition
                let rootPosition = JSON.parse(JSON.stringify(slots[0][0]));
                desktopGrids = JSON.parse(JSON.stringify(slots));

                //Assign items to desktop
                var unallocatedFiles = [];
                let remainingSlots = JSON.parse(JSON.stringify(slots));
                desktopFileList = [];
                if (data === null){
                    //No files on desktop
                    return;
                }
                for (var i = 0; i < data.length; i++) {
                    var thisFile = data[i];
                    desktopFileList.push(JSON.parse(JSON.stringify(thisFile.Filename)));
                    //Get icon from the icon list
                    var location = [thisFile.IconX, thisFile.IconY];
                    if (location[0] == -1 && location[1] == -1) {
                        //This file is not located. Push it into unallocatedFileList
                        unallocatedFiles.push(thisFile);
                    } else if (location[0] >= slots.length || location[1] >= slots[0].length) {
                        //This file is outside of the screen area. Set to be be unallocatedFiles as well
                        unallocatedFiles.push(thisFile);
                    } else {
                        //This file is already located. Push it location into occupiedSlots
                        //var screenX = location[0] * iwidth + padding/2;
                        //var screenY = location[1] * iheight + padding/2;
                        var screenLocation = slots[location[0]][location[1]];

                        //Remove this object from remaining slots
                        remainingSlots[location[0]][location[1]] = undefined;
                        //console.log(thisFile, screenLocation[0], screenLocation[1], iheight, iwidth);
                        appendIconAtLocation(thisFile, screenLocation[0], screenLocation[1], iheight, iwidth, noflash);
                    }
                }

                //Foreach remaining files, assign a location for it.
                var walk = [slots.length, slots[0].length];
                var current = [0, 0];
                for (var i = 0; i < unallocatedFiles.length; i++) {
                    var thisFile = unallocatedFiles[i];
                    try{
                        while (typeof(remainingSlots[current[0]][current[1]]) == "undefined") {
                            //This slot is not usabled. Next slot.
                            current[1] += 1;
                            if (current[1] >= walk[1]) {
                                current[1] = 0;
                                current[0] += 1;
                            }

                            if (typeof(remainingSlots[current[0]]) == "undefined"){
                                //Not enough space to fit the item. Move it to 0 0 instead
                                current = [-1,-1];
                                console.log(current);
                                break;
                            }
                            
                        }
                    }catch{
                        //Something went wrong while assigning positions. Set at root location
                        current = [-1,-1];
                    }
                    
                    //Append the icon to screen
                    if (current[0] == -1 && current[1] == -1){
                        //Screen overflow. Stack the file at (0,0)
                        screenLocation = [rootPosition[0], rootPosition[1]];
                        console.log(screenLocation);
                    }else{
                        screenLocation = remainingSlots[current[0]][current[1]];
                        remainingSlots[current[0]][current[1]] = undefined;
                    }
                    
                    appendIconAtLocation(thisFile, screenLocation[0], screenLocation[1], iheight, iwidth, noflash);

                    //Save the icon location to server
                    $.ajax({
                        url: "system/desktop/files",
                        method: "POST",
                        data: {"set": thisFile.Filename, "x": current[0], "y": current[1]},
                        success: function(data) {
                            if (data.error !== undefined) {
                                console.log(data.error);
                            }
                        }
                    });
                    
                }

                if (callback !== undefined) {
                    //console.log(callback);
                    callback();
                }
            });
        }

        //Handle desktop file multi selection and dragging
        $("#bgwrapper").on("mousedown", function(evt) {
            initMultiSelection(evt);
        });
        $("#bgwrapper").on("touchstart", function(evt) {
            initMultiSelection(evt);
        });

        $("body").on("mouseup", function(evt) {
            mainWindowMouseup(evt);

        });
        $("body").on("touchend", function(evt) {
            mainWindowMouseup(evt);
        });

        $("#selectionPanel").on("mouseup", function(event) {

        });

        function mainWindowMouseup(event) {
            if (event.pageX == multiSelectionStartPoint[0] && event.pageY == multiSelectionStartPoint[1]) {
                //Pressdown and up at the same location
                $(".launchIconWrapper.selected").removeClass("selected");
                endMultiSelection(event);
            } else {
                //Press down and up at different location
                endMultiSelection(event);
            }

            if (resizingWindow){
                //Resizing floatWindow out of the window bound (aka someone don't know how to resize a window correctly)
                resizingWindow = false;
                resizingEdgeID = 0;
                $("#fwdragpanel").hide();
                $("#tfwdragpanel").hide();
                $('.floatWindow.topmost').css("pointer-events", "auto");
                $('.floatWindow.topmost').css("opacity", 1);
                $(resizingWindowTarget).find(".iframecover").hide();
                $(resizingWindowTarget).find(".iframewrapper").css('cursor', '');
            }
            
        }

        function initMultiSelection(event) {
            event.preventDefault();
            multiSelecting = true;
            hideAllContextMenus();
            $("#selectionPanel").css({
                left: event.pageX,
                top: event.pageY,
                width: 0,
                height: 0
            });
            $("#selectionPanel").show();
            multiSelectionStartPoint = [event.pageX, event.pageY];
        }

        function movingMultiSelectionArea(event) {
            event.preventDefault();
            var sx = multiSelectionStartPoint[0];
            var sy = multiSelectionStartPoint[1];
            var ex = event.pageX;
            var ey = event.pageY;

            var newleft = sx;
            if (ex < sx) {
                newleft = ex;
            }

            var newtop = sy;
            if (ey < sy) {
                newtop = ey;
            }

            var newWidth = Math.abs(sx - ex);
            var newHeight = Math.abs(sy - ey);
            $("#selectionPanel").css({
                left: newleft,
                top: newtop,
                width: newWidth,
                height: newHeight
            });

            //Select all the launch icon selected
            selectAllLaunchIconInRange(newleft, newleft + newWidth, newtop, newtop + newHeight);
        }

        function endMultiSelection(event) {
            event.preventDefault();
            multiSelecting = false;
            multiSelectionStartPoint = [-1, -1];
            $("#selectionPanel").hide();
        }

        function selectAllLaunchIconInRange(minX, maxX, minY, maxY) {
            //Select launch icons from its center point
            var xOffset = iconSize[0] / 2;
            var yOffset = iconSize[1] / 2;
            $(".launchIconWrapper.selected").removeClass("selected");
            $(".launchIcon").each(function() {
                //Calculate center point for this icon
                var thisX = $(this).offset().left + xOffset;
                var thisY = $(this).offset().top + yOffset;
                if (thisX > minX && thisX < maxX) {
                    if (thisY > minY && thisY < maxY) {
                        $(this).find(".launchIconWrapper").addClass("selected");
                    }
                }
            });
        }

        function redrawDesktopGrids() {
            var iheight = 106;
            var iwidth = 70;
            var padding = 16;
            if (desktopIconSize == "small") {
                iheight = 82;
                iwidth = 50;
            } else if (desktopIconSize == "medium") {
                iheight = 106;
                iwidth = 70;
            } else if (desktopIconSize == "big") {
                iheight = 124;
                iwidth = 84;
            }

            iconSize = [iwidth, iheight];
            var screenHeight = window.innerHeight;
            var screenWidth = window.innerWidth;

            var vc = Math.floor((screenHeight - 20 - padding) / iheight);
            var hc = Math.floor((screenWidth - padding) / iwidth);

            var slots = []; //A 2D array for storing relative to absolute locations
            for (var j = 0; j < hc; j++) {
                var thisLocationList = [];
                for (var i = 0; i < vc; i++) {
                    var thisLocation = [j * iwidth + padding, i * iheight + padding];
                    thisLocationList.push(thisLocation);
                }
                slots.push(thisLocationList);
            }

            desktopGrids = JSON.parse(JSON.stringify(slots));
        }

        function appendIconAtLocation(filedata, screenX, screenY, iheight, iwidth, updateMode=false) {
            //Get the icon from extension
            var icon = ao_module_utils.getIconFromExt(filedata.Ext.substring(1, filedata.Ext.length));
            var imagePath = "img/desktop/files_icon/" + desktopIconPack + "/" + icon + ".png";
            //Handle special icon types here
            var size = desktopIconSize;
            var filename = JSON.parse(JSON.stringify(filedata.Filename));
            var filepath = JSON.parse(JSON.stringify(filedata.Filepath));
            var isDir = JSON.parse(JSON.stringify(filedata.IsDir));
            var isEmptyDir = JSON.parse(JSON.stringify(filedata.IsEmptyDir));
            var maxlength = 12;
            var type = "file";
            let shortenedName = filename;
            screenX += iconOffsetXY[0];
            screenY += iconOffsetXY[1];
            if (isDir) {
                //Folder objects
                icon = "folder outline";
                if (isEmptyDir){
                    imagePath = "img/desktop/system_icon/folder.png";
                }else{
                    imagePath = "img/desktop/system_icon/folder-with-content.png";
                }
                
                type = "folder";
            } else if (isDir == false && icon == "folder outline") {
                icon = "file outline";
                imagePath = "img/desktop/files_icon/" + desktopIconPack + "/file outline.png";
                type = "file";
            } else if (filedata.Ext == ".exe" || filedata.Ext == ".elf") {
                //Executable objects
                imagePath = "img/desktop/system_icon/script.png";
                type = "executable";
            } else if (filedata.Ext == ".shortcut") {
                //Shortcut
                var shortcutImage = filedata.ShortcutImage;
                shortenedName = JSON.parse(JSON.stringify(filedata.ShortcutName));
                imagePath = shortcutImage;
                type = "shortcut";
            }
            //Check if filename is english only.
            if (/^[a-zA-Z\d .-=+]+$/.test(filename)) {
                maxlength = 20;
            }else{
                //Check if it is under small text mode
                if (size == "small"){
                    maxlength = 10;
                }
            }
          

            if (type != "shortcut" && filename.length > maxlength) {
                shortenedName = filename.substring(0, maxlength) + "...";
            }
            var compressedFiledata = ao_module_utils.objectToAttr(filedata);
            if (updateMode){
                //Update the content that already exists for the same filepath object
                var updateObject = undefined;
                $(".launchIcon").each(function(){
                    if ($(this).attr("filedata") == compressedFiledata){
                        updateObject = $(this);
                    }
                });

                if (updateObject !== undefined){
                    //Check if content identical. If yes, skip rewrite
                    if (updateObject.attr("filedata") == compressedFiledata){
                        //Identical. Skipping
                    }else{
                        //Update its contents
                        updateObject.attr("type", type);
                        updateObject.attr("filename", filename);
                        updateObject.attr("filepath", filepath);
                        updateObject.attr("filedata", compressedFiledata);
                        updateObject.css("width", iwidth + "px");
                        updateObject.css("height", iheight + "px");
                        updateObject.css("left", screenX + "px");
                        updateObject.css("top", screenY + "px");
                    }
                }else{
                    //No exists. Append to wrapper
                    appendDesktopIcon($("#iconwrapper"),{
                        type: type,
                        filename: filename,
                        filepath: filepath,
                        compressedFiledata: compressedFiledata,
                        iwidth: iwidth,
                        iheight: iheight,
                        screenX: screenX,
                        screenY: screenY,
                        size: size,
                        imagePath: imagePath,
                        shortenedName: shortenedName,
                    });
                }

            }else{
                //Append into the desktop
                appendDesktopIcon($("#iconwrapper"),{
                    type: type,
                    filename: filename,
                    filepath: filepath,
                    compressedFiledata: compressedFiledata,
                    iwidth: iwidth,
                    iheight: iheight,
                    screenX: screenX,
                    screenY: screenY,
                    size: size,
                    imagePath: imagePath,
                    shortenedName: shortenedName,
                });
            }
           
        }

        /*
            Main function to append desktop icon to desktop
            Usage: Pass in the target (as jquery object, usually $("#iconwrapper")) and properties with the following object
            properties = {
                type: "",
                filename: "",
                filepath: "",
                compressedFiledata: "",
                iwidth: "",
                iheight: "",
                screenX: "",
                screenY: "",
                size: "",
                imagePath: "",
                shortenedName: "",
            }

            Where the enmty string is the value that require filling in
        */

        function appendDesktopIcon(target, properties){
            var htmlType = "div";
            var isChrome = /Chrome/.test(navigator.userAgent) && /Google Inc/.test(navigator.vendor);
            if (properties.type == "file" && isChrome){
                htmlType = "a";
            }
            var thisIcon = $(`<${htmlType} href="javascript:void(0);" class="launchIcon" 
                    type="${properties.type}" 
                    draggable="true" 
                    ondragover="allowDrop(event)" 
                    ondrop="drop(event)" 
                    ondragstart="drag(event)" 
                    onmousedown="iconClicked(this,event);" 
                    ondblclick="iconDoubleClicked(this,event);" 
                    ontouchstart="iconClicked(this,event); doubleTouchHandler(this, event,openViaTouch);"
                    filename="${properties.filename}" 
                    filepath="${properties.filepath}" 
                    filedata="${properties.compressedFiledata}" 
                    style="width:${properties.iwidth}px; height:${properties.iheight}px;left:${properties.screenX}px; top:${properties.screenY}px;">
                    <span class="launchIconWrapper"><img class="launchIconImage ${properties.size}" src="${properties.imagePath}" draggable="false"></img>
                        <p class="launchIconText ${properties.size} ">${properties.shortenedName}</p></span>
                    </${htmlType}>`);

            $(target).append(thisIcon);
            
            if (properties.type == "file" && isChrome){
                console.log(isChrome);
                let thisFilepath = properties.filepath;
                $(thisIcon)[0].addEventListener("dragstart",function(evt){
                //var filecontent = toDataUrl("media/?file=" + thisFilepath);
                //var fileBase64 = window.btoa(filecontent);
                var targetMime = "plain/text";
                    $.ajax({
                        url: "media/getMime/?file=" + encodeURIComponent(properties.filepath),
                        success: function(data){
                            if (data.error !== undefined){
                                targetMime = "text/directory";
                            }else{
                                targetMime = data;
                            }
                        },
                        async: false
                    });
                evt.dataTransfer.setData("DownloadURL",targetMime+":"+ properties.filename +":"+ location.protocol + "//" + location.hostname + ":" + location.port + "/media/?file=" + encodeURIComponent(properties.filepath));
                //evt.dataTransfer.setData("DownloadURL","video/mp4"+":"+"test.mp4"+":"+"data:"+"video/mp4"+";base64,"+fileBase64);
                },false);
            }
        }

        // ========================== LAUNCH ICON OPERATIONS ================

        //This function start all the launchicon related events
        function drag(ev) {
            //If rename mode, disable drag drop
            if (renameMode){
                return false;
            }
            var target = ev.target;
            if (!($(ev.target).is("div") || $(ev.target).is("a"))) {
                target = $(target).parent();
            }

            //Parse the standard filename / filepath data
            var filename = $(target).attr("filename");
            var filepath = $(target).attr('filepath');
            ev.dataTransfer.setData("filename", filename);
            ev.dataTransfer.setData("filepath", filepath);

            //Parse multifile selection filedata
            var filelist = [];
            if ($(".launchIconWrapper.selected").length > 0){
                if (ctrlHold || $(".launchIconWrapper.selected").length > 1){
                    //Include all objects selected
                    $(".launchIconWrapper.selected").each(function(){
                        var fd = $(this).parent().attr("filedata");
                        fd = JSON.parse(decodeURIComponent(fd));
                        filelist.push({
                            filename: fd.Filename,
                            filepath: fd.Filepath,
                            hostUUID: hostInfo.DeviceUUID
                        });
                    });
                }else{
                    //Only push the one selected
                    filelist.push({
                        filename: filename,
                        filepath: filepath,
                        hostUUID: hostInfo.DeviceUUID
                    });
                }
            }else{
                //There is no selected item on desktop. Use the drag drop one
                filelist.push({
                    filename: filename,
                    filepath: filepath
                });
            }
            
            //console.log(filelist);
            ev.dataTransfer.setData("filedata", JSON.stringify(filelist));
            console.log(filelist);
            //Set a flag on the drag events that these files are from Desktop GUI
            ev.dataTransfer.setData("desktopflag", "true");

            //Record the start drop relative position of the icon object
            var dx = ev.pageX - $(target).offset().left;
            var dy = ev.pageY - $(target).offset().top;
            startDragRelatuve = [dx, dy];
            ev.stopPropagation();
        }

        function drop(ev) {
            ev.preventDefault();
            ev.stopImmediatePropagation();
            var target = $(ev.target);
            if (!(target.is("div") || target.is("a"))) {
                target = $(target).parent();
            }
            if (target.hasClass("launchIconWrapper")) {
                target = target.parent();
            }
            var thisFilepath = $(target).attr("filepath");
            if (thisFilepath == ev.dataTransfer.getData("filepath")) {
                //Drag and drop on the same item. Ignore it
                return;
            }
            var sourceFilename = ev.dataTransfer.getData("filename");
            var sourceFilepath = ev.dataTransfer.getData("filepath");
            //To handle multiple file transfer from file explorer
            var sourceFilelist = ev.dataTransfer.getData("filedata"); 
            console.log(target)
            console.log(sourceFilename);
            console.log(sourceFilepath);
            if (sourceFilelist !== ""){
                sourceFilelist = JSON.parse(sourceFilelist);
            }
            console.log(sourceFilelist);


            //Drop opererations
            if (target.attr("id") == "bgwrapper") {
                if (sourceFilename == "" && sourceFilepath == "" && ev.dataTransfer.files.length > 0){
                    //Drag drop from external source. Upload to desktop
                    //Assign the locations for the objects
                    var files = ev.dataTransfer.files;
                    var gridMaxX = desktopGrids.length;
                    var gridMaxY = desktopGrids[0].length;
                    var targetLocation = findClosestGrid((ev.clientX), (ev.clientY), false);
                    var targetGridLocation = targetLocation[1];
                    var locations = [];

                    for (var k =0; k < files.length; k++){
                        var thisLocation = JSON.parse(JSON.stringify(targetGridLocation));
                        //Add k to y axis of the list.
                        thisLocation[1] += k;
                        if (thisLocation[1] >= gridMaxY){
                                thisLocation[0]++;
                                thisLocation[1] = 0;
                        }
                        if (thisLocation[1] >= gridMaxY && thisLocation[0] >= gridMaxX){
                            //Desktop full. Force put to 0 0 
                            thisLocation[0] = 0;
                            thisLocation[1] = 0;
                            break;
                        }
                        while (getObjectFromGridLocation(thisLocation[0], thisLocation[1]) !== undefined){
                            thisLocation[1] += 1;
                            if (thisLocation[1] >= gridMaxY){
                                //Over the screen. Shift to the row on the right
                                thisLocation[0]++;
                                thisLocation[1] = 0;
                            }

                            if (thisLocation[1] >= gridMaxY && thisLocation[0] >= gridMaxX){
                                //Desktop full. Force put to 0 0 
                                thisLocation[0] = 0;
                                thisLocation[1] = 0;
                                break;
                            }
                        }
                        locations.push(thisLocation)
                    }

                    console.log(locations, ev.dataTransfer.files);

                    //Register file locations
                    for (var j =0; j < locations.length; j++){
                        let thisFile = files[j];
                        let thisFilename = files[j].name;
                        let x = parseInt(locations[j][0]);
                        let y = parseInt(locations[j][1]);
                        uploadFile(thisFile,function(){
                            console.log("Uploader callback");
                            $.ajax({
                                url: "system/desktop/files",
                                method: "POST",
                                data: {"set": thisFilename, "x": x, "y": y},
                                success: function(data) {
                                    //Refresh the desktop
                                    refresh(undefined, true);
                                }
                            });
                        });
                        
                    }
                }else if (sourceFilelist.length > 0 && Array.isArray(sourceFilelist)){
                    //Drag drop multiple files from desktop or file explorer to desktop
                    var desktopFlag = ev.dataTransfer.getData("desktopflag"); 
                    if (desktopFlag == "" || desktopFlag === undefined || desktopFlag == null){
                        //This is a file drag drop from not desktop to desktop
                        var filelist = ev.dataTransfer.getData("filedata");
                        if (filelist != ""){
                            filelist = JSON.parse(filelist);
                            if (filelist.length == 0){
                                return
                            }

                            //Get the position for this drop events and arrange grid locations
                            var gridPosition = gridPositionAllocate(ev.clientX, ev.clientY, filelist.length);
                            console.log(gridPosition)

                            //Check if source is also from user:/
                            var srcVroot = filelist[0].filepath.split(":/").shift();
                            var mode = "copy"
                            var title = "Copying "
                            if (srcVroot == "user"){
                                //Move
                                mode = "move"
                                title = "Moving "
                            }

                            //Check if any of the files already exists on desktop
                            /*
                            var duplicateFound = false;
                            filelist.forEach(file => {
                                var thisFilename = file.filename;
                                desktopFileList.forEach(desktopFile => {
                                    if (desktopFile == thisFilename){
                                        //Diplicate
                                        duplicateFound = true;
                                    }
                                });
                            });
                            */

                            var filepathList = [];
                            filelist.forEach(file => {
                                filepathList.push(file.filepath)
                            });

                            //Start the file operation dialog
                            var oprConfig = {
                                opr: mode,
                                src: filepathList,
                                dest: "user:/Desktop/",
                                overwriteMode: "ask"
                            }
                            var configHash = encodeURIComponent(JSON.stringify(oprConfig));

                            //Genreate window title
                            title = title + filepathList.length;
                            if (filepathList.length > 1){
                                title += " files";
                            }else{
                                title += " file";
                            }

                            parent.newFloatWindow({
                                url: "SystemAO/file_system/file_operation.html#" + configHash,
                                width: 400,
                                height: 220,
                                appicon: "SystemAO/file_system/img/selector.png",
                                title: title
                            });


                        }

                        
                    }else{
                        //This is a file drag event from desktop, but more than one files.
                        //Pin the final location for the drag drop object
                        var sourceObject = getObjectFromPath(sourceFilepath);
                        var dx = startDragRelatuve[0];
                        var dy = startDragRelatuve[1];
                        var targetLocation = findClosestGrid((ev.clientX - dx), (ev.clientY - dy));
                        var closestLocation = targetLocation[0];
                        var duplicateObject = getObjectFromLocation(closestLocation[0]  + iconOffsetXY[0], closestLocation[1]  + iconOffsetXY[1]);
                        if (duplicateObject !== undefined) {
                            //There are already object there. Do nothing
                            console.log("Drop location duplicated!")
                            return;
                        }

                        //Get other objects that is not the one drag dropped
                        var iconOffset = {};
                        for (var i =0; i < sourceFilelist.length; i++){
                            var thisFile = sourceFilelist[i];
                            if (thisFile.filepath != sourceFilepath){
                                //Calculate the x y offset of this icon to the drag drop one
                                var thisIconObject = getObjectFromPath(thisFile.filepath);
                                iconOffset[thisFile.filepath] = {
                                    dx: $(sourceObject).offset().left - $(thisIconObject).offset().left,
                                    dy: $(sourceObject).offset().top - $(thisIconObject).offset().top
                                }
                                //console.log(thisFile.filename, iconOffset[thisFile.filepath]);
                            }
                        }

                        //Move the drag drop object to the desiged location
                        $(sourceObject).css({
                            left: closestLocation[0] + iconOffsetXY[0],
                            top: closestLocation[1] + iconOffsetXY[1]
                        });

                        //Save the drag item location
                        $.ajax({
                            url: "system/desktop/files",
                            method: "POST",
                            data: {"set": sourceFilename, "x": targetLocation[1][0], "y": targetLocation[1][1]},
                            success: function(data) {
                                //console.log(data);
                            }
                        });

                        //Move all the relative files to the main object
                        var relocatePendingObjects = [];
                        for (const [filepath, offset] of Object.entries(iconOffset)) {
                            let thisIconObject = getObjectFromPath(filepath);
                            let caluclatedLocation = [$(sourceObject).offset().left - offset.dx, $(sourceObject).offset().top - offset.dy];
                            let finalIconLocation = findClosestGrid(caluclatedLocation[0], caluclatedLocation[1]);
                            //Check for duplication
                            /*
                            var duplicateObject = getObjectFromLocation(finalIconLocation[0][0]  + iconOffsetXY[0], finalIconLocation[0][1] + iconOffsetXY[1]);
                            if (duplicateObject !== undefined) {
                                //There are already object there. Relocate this object later
                                relocatePendingObjects.push(duplicateObject)
                            }
                            */
                        
                            //Move this icon to designed location
                            $(thisIconObject).css({
                                left: finalIconLocation[0][0] + iconOffsetXY[0],
                                top: finalIconLocation[0][1] + iconOffsetXY[1]
                            });

                            let thisIconFileData = JSON.parse(decodeURIComponent($(thisIconObject).attr("filedata")));
                            
                            //Record this in database
                            $.ajax({
                                url: "system/desktop/files",
                                method: "POST",
                                data: {"set": thisIconFileData.Filename, "x": finalIconLocation[1][0], "y": finalIconLocation[1][1]},
                                success: function(data) {
                                    //console.log(data);
                                }
                            });
                            
                        }

                        //Get duplication objects
                        for (const [filepath, offset] of Object.entries(iconOffset)) {
                            let thisIconObject = getObjectFromPath(filepath);
                            //Check for duplication
                            var iconLocation = [$(thisIconObject).offset().left, $(thisIconObject).offset().top];
                            $(".launchIcon").each(function(){
                                if ($(this).offset().left == iconLocation[0] && $(this).offset().top == iconLocation[1]){
                                    //This icon is at the target icon location
                                    if ($(this).attr("filepath") != filepath){
                                        relocatePendingObjects.push($(this));
                                    }
                                }
                            });
                        }


                        //Relocate objects that is in the way of moving
                        for (var i = 0; i < relocatePendingObjects.length; i++){
                            var thisObject = relocatePendingObjects[i];
                            console.log(thisObject);
                            var thisX = $(thisObject).offset().left;
                            var thisY = $(thisObject).offset().top;
                            var nextEmptyGrid = findClostestEmptyGridLocation(thisX, thisY);
                            
                            //Move this file to the next empty grid location
                            $(thisObject).css({
                                left: nextEmptyGrid[0][0] + iconOffsetXY[0],
                                top: nextEmptyGrid[0][1] + iconOffsetXY[1]
                            });

                            //Save move record to db
                            let thisIconFileData = JSON.parse(decodeURIComponent($(thisObject).attr("filedata")));
                            $.ajax({
                                url: "system/desktop/files",
                                method: "POST",
                                data: {"set": thisIconFileData.Filename, "x": nextEmptyGrid[1][0], "y": nextEmptyGrid[1][1]},
                                success: function(data) {
                                    //console.log(data);
                                }
                            });

                        }
                    }
                    
                }else{
                    //Dropping a file onto other place on desktop
                    var sourceObject = getObjectFromPath(sourceFilepath);
                    var dx = startDragRelatuve[0];
                    var dy = startDragRelatuve[1];
                    var targetLocation = findClosestGrid((ev.clientX - dx), (ev.clientY - dy));
                    var closestLocation = targetLocation[0];
                    //Check if there are objects already at that location
                    var duplicateObject = getObjectFromLocation(closestLocation[0], closestLocation[1]);
                    if (duplicateObject !== undefined) {
                        //There are already object there. Do nothing
                        console.log("Drop location duplicated!")
                        return;
                    }
                    var closestGridIndex = targetLocation[1];
                    $(sourceObject).css({
                        left: closestLocation[0] + iconOffsetXY[0],
                        top: closestLocation[1] + iconOffsetXY[1]
                    });
                    $.ajax({
                        url: "system/desktop/files",
                        method: "POST",
                        data: {"set": sourceFilename, "x": closestGridIndex[0], "y": closestGridIndex[1]},
                        success: function(data) {
                            //console.log(data);
                        }
                    });
                }
            } else if (target.attr("type") == "folder") {
                //Move this file or folder into the target folder
                //WIP

            } else if (target.attr("type") == "shortcut") {
                //Opening with the shortcut
                //Check shortcut type
                let shortcutData = JSON.parse(decodeURIComponent($(target).attr("filedata")));
                var shortcutType = shortcutData["ShortcutType"];
                if (shortcutType == "module") {
                    //Open the source file with this module
                    let openFileList = [];
                    if ($(".launchiconwrapper.selected").length > 0 && !Array.isArray(sourceFilelist)) {
                        $(".launchiconwrapper.selected").each(function() {
                            let thisFileData = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                            openFileList.push({
                                filename: thisFileData["Filename"],
                                filepath: thisFileData["Filepath"]
                            });
                        });
                    }else if (sourceFilelist.length > 0 && Array.isArray(sourceFilelist)){
                        //Open file that is transfered from file explorer.
                        openFileList = sourceFilelist;
                        console.log(openFileList);
                    } else {
                        //Only pass in the current selected file.
                        openFileList.push({
                            filename: sourceFilename,
                            filepath: sourceFilepath
                        });
                    }

                    var shortcutModule = getModuleFromShortcutInfo(shortcutData);
                    //console.log(openFileList);
                    if (shortcutModule === undefined){
                        //This shortcut module is not found on this server
                        return;
                    }
                    openFileWithModule(shortcutModule, openFileList);
                } else if (shortcutType == "folder") {
                    //Move the source file into this folder

                }

            } else {
                console.log("Unknown reaction type: ", target.attr("type"));
            }
        }

        function getModuleFromShortcutInfo(shortcutInfo) {
            var ShortcutPath = shortcutInfo["ShortcutPath"];
            if (ShortcutPath.includes("/") == false) {
                //Legacy defination. Append /index.html at the back.
                ShortcutPath = ShortcutPath + "/index.html";
            }

            //Try to match it with the module installed
            for (var i = 0; i < moduleInstalled.length; i++) {
                if (moduleInstalled[i]["StartDir"] == ShortcutPath || moduleInstalled[i]["Name"] == shortcutInfo["ShortcutName"]) {
                    //This is the correct module to be loaded
                    return moduleInstalled[i];
                }
            }
        }

        //Allocate the given number of grids from desktop 
        function gridPositionAllocate(posx, posy, numberOfGridNeeded=1){
            var gridMaxX = desktopGrids.length;
            var gridMaxY = desktopGrids[0].length;
            var targetLocation = findClosestGrid(posx, posy, false);
            var targetGridLocation = targetLocation[1];
            var previousEmptyGridPosition = targetGridLocation;
            var locations = [];

            for (var k =0; k < numberOfGridNeeded; k++){
                var thisLocation = JSON.parse(JSON.stringify(previousEmptyGridPosition));
                //Add k to y axis of the list.
                thisLocation[1] += k;
                if (thisLocation[1] >= gridMaxY){
                        thisLocation[0]++;
                        thisLocation[1] = 0;
                }
                if (thisLocation[1] >= gridMaxY && thisLocation[0] >= gridMaxX){
                    //Desktop full. Force put to 0 0 
                    thisLocation[0] = 0;
                    thisLocation[1] = 0;
                    break;
                }
                while (getObjectFromGridLocation(thisLocation[0], thisLocation[1]) !== undefined){
                    thisLocation[1] += 1;
                    if (thisLocation[1] >= gridMaxY){
                        //Over the screen. Shift to the row on the right
                        thisLocation[0]++;
                        thisLocation[1] = 0;
                    }

                    if (thisLocation[1] >= gridMaxY && thisLocation[0] >= gridMaxX){
                        //Desktop full. Force put to 0 0 
                        thisLocation[0] = 0;
                        thisLocation[1] = 0;
                        break;
                    }
                }
                previousEmptyGridPosition = JSON.parse(JSON.stringify(thisLocation))
                locations.push(thisLocation)
            }

            return locations
        }

        function setIconDesktopLocation(sourceFilename, gridIndexX, gridIndexY, callback = undefined) {
            $.ajax({
                url: "system/desktop/files",
                method: "POST",
                data: {"set": sourceFilename, "x": gridIndexX, "y": gridIndexY},
                success: function(data) {
                    if (data.error !== undefined) {
                        console.log(data.error);
                    } else {
                        if (callback !== undefined) {
                            callback();
                        }
                    }
                }
            });
        }

        //THIS FUNCTION IS NEEDED. DO NOT DELETE ALLOWDROP FUNCTION
        function allowDrop(ev) {
            ev.preventDefault();
        }

        //Pass in the object fullpath and return the icon object onscreen
        function getObjectFromPath(path) {
            var object;
            $(".launchIcon").each(function() {
                if ($(this).attr("filepath") == path) {
                    object = $(this);
                }
            });
            return object;
        }

        //Pass in the coordinate and check if there is another object at the same location
        function getObjectFromLocation(x, y) {
            var object;
            $(".launchIcon").each(function() {
                if ($(this).position().left == x && $(this).position().top == y) {
                    object = $(this);
                }
            });
            return object;
        }

        //Similar function to getObjectFromLocation but using grid coordinate instead of pixel coordinate
        function getObjectFromGridLocation(gx, gy){
            var pos = JSON.parse(JSON.stringify(desktopGrids[gx][gy]));
            pos[0] = pos[0] + iconOffsetXY[0];
            pos[1] = pos[1] + iconOffsetXY[1];
            return getObjectFromLocation(pos[0],pos[1]);
        }

        //Find the clostest empty grid, prioirty given to y first then x
        function findClostestEmptyGridLocation(x, y){
            //Reduce icon offset to the x y on screen coordinate
            x = x - iconOffsetXY[0];
            y = y - iconOffsetXY[1];
            //Get the grid index from absolute coordinate
            var currentGridLocation = getGridIndexFromLocation(x,y);
            console.log(currentGridLocation);
            //Search for the next empty location
            var targetLocation = [[-1,-1],[-1,-1]];
            for (var i = currentGridLocation[0]; i < desktopGrids.length; i++){
                var yStart = 0;
                if (i == currentGridLocation[0]){
                    yStart = currentGridLocation[1];
                }
                for (k = yStart; k < desktopGrids[i].length; k++){
                    var thisLocation = JSON.parse(JSON.stringify(desktopGrids[i][k]));
                    var offsetedLocation = [thisLocation[0], thisLocation[1]];
                    var possibleDuplication = getObjectFromGridLocation(i,k);
                    //console.log( [i,k], offsetedLocation, possibleDuplication)
                    if (possibleDuplication === undefined){
                        //This is an empty slot
                        targetLocation = [offsetedLocation, [i,k]];
                        return targetLocation;
                    }
                }
            }
            return targetLocation;
        }

        function getGridIndexFromLocation(x,y){
            var gridIndex = [-1,-1];
            for (var i = 0; i < desktopGrids.length; i++){
                var thisXAxis = desktopGrids[i];
                if (thisXAxis[0][0] == x){
                    //This x matches. Match y
                    gridIndex[0] = i;
                    for (var k = 0; k < thisXAxis.length; k++){
                        var thisYAxis = thisXAxis[k];
                        if (thisYAxis[1] == y){
                            gridIndex[1] = k;
                            return gridIndex;
                        }
                    }
                }
            }
            return gridIndex;
        }


        //Set allow overshoot to allow drop point to get closest grid with x / y > cursor posx /y
        function findClosestGrid(x, y, allowOvershoot = true) {
            var minDx = window.innerWidth;
            var minDy = window.innerHeight;
            var finalLocation = [-1, -1];
            var gridLocation = [-1, -1];
            for (var i = 0; i < desktopGrids.length; i++) {
                for (var j = 0; j < desktopGrids[0].length; j++) {
                    var thisGridLocation = desktopGrids[i][j];
                    var dx = x - thisGridLocation[0];
                    var dy = y - thisGridLocation[1];
                    if (allowOvershoot) {
                        if (Math.abs(dx) < minDx) {
                            minDx = Math.abs(x - thisGridLocation[0]);
                            finalLocation[0] = thisGridLocation[0];
                            gridLocation[0] = i;
                        }
                        if (Math.abs(dy) < minDy) {
                            minDy = Math.abs(y - thisGridLocation[1]);
                            finalLocation[1] = thisGridLocation[1];
                            gridLocation[1] = j;
                        }
                    } else {
                        if (dx < minDx && dx > 0) {
                            minDx = Math.abs(x - thisGridLocation[0]);
                            finalLocation[0] = thisGridLocation[0];
                            gridLocation[0] = i;
                        }
                        if (dy < minDy && dy > 0) {
                            minDy = Math.abs(y - thisGridLocation[1]);
                            finalLocation[1] = thisGridLocation[1];
                            gridLocation[1] = j;
                        }
                    }

                }
            }
            return [finalLocation, gridLocation];
        }

        //Ask for confirmation before window close
        //Update 16 Feb 2021: Disabled confirmation and use a new method of implementing this later
        /*
        function myConfirmation() {
            if (!loggingOut){
                return 'Your data might not been saved. Are you sure you want to quit?';
            }
        }

        window.onbeforeunload = myConfirmation;
        */

        function iconClicked(object, evt) {
            if (renameMode){
                //Exit rename mode if icon is clicked during renaming
                if ($(object).find(".renameInput").length == 0){
                    exitRenameMode();
                }
                
            }
            //Clicked on a launch icon.
            var alreadyHighlighted = $(object).find(".launchIconWrapper").hasClass("selected");
            if (alreadyHighlighted){
                //Already selected
                if (ctrlHold) {
                    //Selection
                    $(object).find(".launchIconWrapper").removeClass("selected");
                }
            }else{
                //Not selected yet
                if (ctrlHold) {
                    //Add this into selection
                    $(object).find(".launchIconWrapper").addClass("selected");
                }else{
                    //Remove all others and select this
                    $(".launchIconWrapper.selected").removeClass("selected");
                    $(object).find(".launchIconWrapper").addClass("selected");
                }
                

            }
        }

        function iconDoubleClicked(object, evt=undefined) {
            //Don't allow opening when renaming
            if (renameMode){
                return;
            }
            //Double click on a launch icon, tries to open it
            var filedata = ao_module_utils.attrToObject($(object).attr("filedata"));
            //console.log(filedata);
            if (filedata.IsDir) {
                //This is a directory. Open with file explorer
                newFloatWindow({
                    url: "SystemAO/file_system/file_explorer.html#" + encodeURIComponent(filedata.Filepath),
                    appicon: "SystemAO/file_system/img/small_icon.png",
                    width: 1080,
                    height: 580,
                    title: "File Manager"
                });
            } else if (filedata.IsShortcut) {
                //This is a shortcut. Open the target endpoint
                var stype = filedata["ShortcutType"];
                if (stype == "module") {
                    //Open the target module
                    openModule(filedata.ShortcutPath);
                } else if (stype == "folder") {
                    //Open the target folder
                    openFolder(filedata.ShortcutPath)
                }else if (stype == "url"){
                    //Open the target webpage in a new tab
                    window.open(filedata.ShortcutPath);
                }else{
                    console.log(filedata);
                }
            } else {
                //This is a file. Open it with default opener
                $.ajax({
                    url: "system/modules/getDefault",
                    method: "GET",
                    data: {
                        opr: "launch",
                        ext: filedata.Ext,
                        mode: "launch"
                    },
                    success: function(data) {
                        if (data.error !== undefined) {
                            //No default opener assigned 
                            var url = "SystemAO/file_system/defaultOpener.html";
                            var icon = "SystemAO/file_system/img/opener.png";
                            var title = "Select an opener WebApp: "
                            var openFileList = [];
                            var openFileObject = {
                                filepath: filedata.Filepath,
                                filename: filedata.Filename
                            }
                            openFileList.push(openFileObject);
                            var openParamter = encodeURIComponent(JSON.stringify(openFileObject));
                            newFloatWindow({
                                url: url + "#" + openParamter,
                                width: 320,
                                height: 510,
                                appicon: icon,
                                title: title
                            });
                        } else {
                            //Assigned. Launch with given paramter
                            var url = data["StartDir"];
                            var size = [undefined, undefined];
                            var title = data["Name"];
                            var icon = "img/system/favicon.png";
                            if (data["IconPath"] != "") {
                                icon = data["IconPath"];
                            }
                            //Use floatWindow if exists
                            if (data["SupportFW"] == true && data["LaunchFWDir"] != "") {
                                url = data["LaunchFWDir"];
                                if (data["InitFWSize"] !== null) {
                                    size = data["InitFWSize"]
                                }
                            }
                            //Use embedded mode if exists
                            if (data["SupportEmb"] == true && data["LaunchEmb"] != "") {
                                url = data["LaunchEmb"];
                                if (data["InitEmbSize"] !== null) {
                                    size = data["InitEmbSize"]
                                }
                            }

                            //Build open File Hash Data Format
                            var openFileList = [];
                            var openFileObject = {
                                filepath: filedata.Filepath,
                                filename: filedata.Filename
                            }
                            openFileList.push(openFileObject);
                            var openParamter = encodeURIComponent(JSON.stringify(openFileList));

                            //Add launch files info and launch floatWindow
                            newFloatWindow({
                                url: url + "#" + openParamter,
                                width: size[0],
                                height: size[1],
                                appicon: icon,
                                title: title
                            });
                        }
                    }
                })
            }
        }

        $(window).on("resize", function(event) {
                redrawDesktopGrids();
                resizeAllFloatWindowButtons();
            })
            // ======================= DOCUMENT KEY BINDING =====================
        $(document).keydown(function(event) {
            if (event.which == "17") {
                //Pressdown of Ctrl key
                ctrlHold = true;
            } else if (event.which == "16") {
                //Pressdown of Shift key
                shiftHold = true;
            }else if (event.which == "27"){
                //Cancel all floatwindow events and key events
                $("#fwdragpanel").hide();
                $("#tfwdragpanel").hide();
                $(".floatWindow").find(".iframecover").hide();
                movingWindow = false;
                resizingWindow = false;
                resizingEdgeID = 0;
                multiSelecting = false;
                ctrlHold = false;
                shiftHold = false;
            }else if (event.which == "46"){
                //Delete key

                if (renameMode){
                    //Deleting content in textarea. Ignore delte action
                    return true
                }
                var deleteFilelist = [];
                var deleteFilenameList = [];
                $(".launchIconWrapper.selected").each(function(){
                    var fileObject = $(this).parent();
                    var fd = JSON.parse(decodeURIComponent((fileObject).attr("filedata")));
                    deleteFilelist.push(fd.Filepath);
                    deleteFilenameList.push(fd.Filename)
                });

                //Prase the filelist and pass to trash module
                console.log(deleteFilelist);
                $.ajax({
                    url: "system/file_system/fileOpr",
                    method:"POST",
                    data: {opr: "recycle", src: JSON.stringify(deleteFilelist)},
                    success: function(data){
                        if (data.error !== undefined){
                            alert(data.error);
                        }else{
                            refresh(undefined, true);
                        }
                    }
                });

                //Delete the file's desktop location
                deleteFilenameList.forEach(file => {
                    $.ajax({
                        url: "system/desktop/files",
                        data: {del: file},
                        success: function(data){
                            if (data.error !== undefined){
                                console.log(data.error);
                            }
                        }
                    });
                })
               
            }else if (event.which == "13"){
                //Enter key
                if (!renameMode){
                    //Open selected object by emulating double click
                    $(".launchIconWrapper.selected").each(function(){
                        var object = $(this).parent();
                        iconDoubleClicked(object);
                    });
                    
                }else if (renameMode){
                    event.preventDefault();
                    exitRenameMode();
                }
            
            }else{
                //console.log(event.which);
            }
        });

        $(document).keyup(function(event) {
            if (event.which == "17") {
                ctrlHold = false;
            } else if (event.which == "16") {
                shiftHold = false;
            }
        });

        $("#bgwrapper").on("mouseup", function(event) {
            //Deselect all selected icons
            event.preventDefault();
            event.stopImmediatePropagation();
            mainWindowMouseup(event);

        });

        function openFolder(virtualPath){
            newFloatWindow({
                url: "SystemAO/file_system/file_explorer.html#" + encodeURIComponent(virtualPath),
                appicon: "SystemAO/file_system/img/small_icon.png",
                width:1080,
                height:580,
                title: "File Manager"
            });
        }

        function logout() {
            loggingOut = true;
            if (confirm("Exiting Session. Confirm?")){
                $.get("system/auth/logout", function() {
                    window.location.href = "/";
                });
            }
            hideAllContextMenus();
        }

        // ======================= CONTEXT MENU =============================

        window.addEventListener("contextmenu",
            function(e) {
                e.preventDefault();
                e.stopPropagation();
                var clickTarget = $(e.target);
                hideAllContextMenus();
                showMenu = false;
                $("#contextmenu").html("");
                if (clickTarget.hasClass("launchIcon") || clickTarget.hasClass("launchIconImage") || clickTarget.hasClass("launchIconText")) {
                    //Click on an object on destkop
                    if (clickTarget.hasClass("launchIcon") == false) {
                        clickTarget = $(clickTarget).parent().parent();
                    }
                    if (!ctrlHold && !$(clickTarget).find(".launchIconWrapper").hasClass("selected")){
                        $(".launchIconWrapper.selected").removeClass("selected");
                    }
                    //Select this object
                    $(clickTarget).find(".launchIconWrapper").addClass("selected");
                    var objectType = $(clickTarget).attr("type");
                    operationTargetLaunchIcon = $(clickTarget);
                    //Check if selected more than one object
                    if ($(".launchIconWrapper.selected").length > 1){
                            //When the user selected more than one item on desktop
                            addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                            addContextMenuItem($("#contextmenu"), 'Open With', "<i class='caret right icon'></i>", "handleOpenWith", true);
                            addContextMenuItem($("#contextmenu"), 'Share', "<i class='caret right icon'></i>", "handleFileShare", true);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Download in Zip', "<i class='download icon'></i>", "downloadFile", false);
                            addContextMenuItem($("#contextmenu"), 'Make a Copy', "<i class='copy icon'></i>", "handleCloning", false);
                            addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Properties', undefined, "openObjectProperty", false);

                    }else{
                        //When the user only selected one item
                        if (objectType == "file") {
                            addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                            addContextMenuItem($("#contextmenu"), 'Open With', "<i class='caret right icon'></i>", "handleOpenWith", true);
                            addContextMenuItem($("#contextmenu"), 'Share', "<i class='caret right icon'></i>", "handleFileShare", true);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Download', "<i class='download icon'></i>", "downloadFile", false);
                            addContextMenuItem($("#contextmenu"), 'Make a Copy', "<i class='copy icon'></i>", "handleCloning", false);
                            addContextMenuItem($("#contextmenu"), 'Rename', undefined, "handleRename", false);
                            addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Properties', undefined, "openObjectProperty", false);

                        } else if (objectType == "folder") {
                            addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                            addContextMenuItem($("#contextmenu"), 'Zip here', "<i class='zip icon'></i>", "handleZipFolder", false);
                            addContextMenuItem($("#contextmenu"), 'Share', "<i class='caret right icon'></i>", "handleFileShare", true);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Download as Zip', "<i class='download icon'></i>", "downloadFile", false);
                            addContextMenuItem($("#contextmenu"), 'Make a Copy', "<i class='caret right icon'></i>", "handleCloning", false);
                            addContextMenuItem($("#contextmenu"), 'Rename', undefined, "handleRename", false);
                            addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);
                            addContextMenuSeperator($("#contextmenu"));
                            addContextMenuItem($("#contextmenu"), 'Properties', undefined, "openObjectProperty", false);
                        } else if (objectType == "shortcut") {
                            var fd = JSON.parse(decodeURIComponent($(clickTarget).attr("filedata")));
                            console.log(fd);
                            if (fd.ShortcutType == "module"){
                                //Public WebApp
                                addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                                addContextMenuItem($("#contextmenu"), 'Open in New Tab', "<i class='external icon'></i>", "openWebAppInNewTab", false);
                                addContextMenuItem($("#contextmenu"), 'Rename', undefined, "handleRename", false);
                                addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);

                            }else if (fd.ShortcutType == "folder"){
                                //Folder
                                addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                                addContextMenuItem($("#contextmenu"), 'Open File Location', "<i class='folder open icon'></i>", "handleShortcutFolderOpen", false);
                                addContextMenuItem($("#contextmenu"), 'Rename', undefined, "handleRename", false);
                                addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);
                                addContextMenuSeperator($("#contextmenu"));
                                addContextMenuItem($("#contextmenu"), 'Properties', undefined, "openObjectProperty", false);
                          
                            }else{
                                addContextMenuItem($("#contextmenu"), 'Open', undefined, "openIconViaMenu", false);
                                addContextMenuItem($("#contextmenu"), 'Delete', "<i class='trash icon'></i>", "handleFileDelete", false);
                            }
                            
                          
                        }else{
                            console.log("Opening context menu on unknown type: ", objectType);
                        }
                    }
                    showMenu = true;

                } else if (clickTarget.hasClass("backgroundFrame") || (isSafari && $(clickTarget).attr("id") == "selectionPanel")) {
                    //Click on the background. Load background context menu.
                    addContextMenuItem($("#contextmenu"), 'New', "<i class='caret right icon'></i>", "newitemmenu", true);
                    addContextMenuItem($("#contextmenu"), 'Refresh', "<i class='refresh icon'></i>", "handleMenuRefresh", false);
                    addContextMenuItem($("#contextmenu"), 'Open File Manager', undefined, "openfm", false);
                    //addContextMenuItem($("#contextmenu"), 'Get File from URL', "<i class='download icon'></i>", "downloadURL", false);
                    addContextMenuItem($("#contextmenu"), 'Personalization', "<i class='paint brush icon'></i>", "personalization", false);
                    addContextMenuItem($("#contextmenu"), 'Background', "<i class='caret right icon'></i>", "background", true);
                    addContextMenuItem($("#contextmenu"), 'Icon Size', "<i class='caret right icon'></i>", "listIconsize", true);
                    addContextMenuItem($("#contextmenu"), 'Toggle FullScreen', "<i class='maximize icon'></i>", "fullscreen", false);
                    addContextMenuItem($("#contextmenu"), 'Exit', undefined, "logout", false);
                    showMenu = true;
                }else if (clickTarget.hasClass("fwdragger") || (clickTarget.hasClass("title") && clickTarget.parent().hasClass("fwdragger"))){
                    //Click on the floatWindow object 
                    addContextMenuItem($("#contextmenu"), 'Open in New Tab', "<i class='external icon'></i>", "openSelectedFloatWindowInNewTab", false);
                    addContextMenuItem($("#contextmenu"), 'Refresh', "<i class='refresh icon'></i>", "refreshSelectedFloatWindow", false);
                    addContextMenuSeperator($("#contextmenu"));
                    addContextMenuItem($("#contextmenu"), 'Minimize', "<i class='window minimize icon'></i>", "minimizeSelectedFloatWindow", false);

                    if ($(clickTarget).parent().hasClass("fixedsize") == false && $(clickTarget).parent().parent().hasClass("fixedsize") == false){
                        //This FloatWindow is resizable
                        console.log($(clickTarget).parent());
                        if ($(clickTarget).parent().attr("max") !== undefined && $(clickTarget).parent().attr("max") == "true"){
                            addContextMenuItem($("#contextmenu"), 'Restore', "<i class='window window restore icon'></i>", "maximizeSelectedFloatWindow", false);
                        }else{
                            addContextMenuItem($("#contextmenu"), 'Maximize', "<i class='window maximize icon'></i>", "maximizeSelectedFloatWindow", false);
                        }
                        
                    }
                    addContextMenuItem($("#contextmenu"), 'Close', "<i class='remove icon'></i>", "closeSelectedFloatWindow", false);
                    showMenu = true;
                }

                
                if (showMenu){
                    //Toggle context menu
                    $("#contextmenu").show();
                    var startX = e.pageX;
                    var startY = e.pageY;
                    if (e.pageX > window.innerWidth / 2){
                        startX = e.pageX - $("#contextmenu").width();
                    }
                    if (e.pageY > window.innerHeight / 2){
                        startY = e.pageY -  $("#contextmenu").height();
                    }
                    $("#contextmenu").css({
                        left: startX,
                        top: startY
                    });
                    menuStartLocation = [e.pageX, e.pageY];
                }
                
            }, true);

        function handleMenuRefresh() {
            //This function is here to remove the object and event passed in from menu pressed object
            refresh();
        }

        function newshortcut(){
            //Show the new shortcut creation tool
            newFloatWindow({
                url: "SystemAO/desktop/shortcutCreator.html",
                appicon: "img/desktop/system_icon/shortcut.png",
                width:815,
                height:485,
                title: "New Shortcut"
            });
            hideAllContextMenus();
        }

        function openIconViaMenu(target, event){
            $(".launchIconWrapper.selected").each(function(){
                iconObject = $(this).parent();
                //Emulate a doubleclick on icon
                iconDoubleClicked(iconObject, event);
            });
            hideAllContextMenus();
        }

        //Opening a shortcut module from desktop to new tab
        function openWebAppInNewTab(target, event){
            $(".launchIconWrapper.selected").each(function(){
                var fd = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                $.get("system/modules/getLaunchPara?module=" + fd.ShortcutPath, function(data) {
                    if (data.error !== undefined) {
                        console.log(data.error);
                    }else{
                        //Open in new tab
                        window.open(data.StartDir)
                    }
                });
            });
        }

        function downloadFile(target, event){
            if ( $(".launchIconWrapper.selected").length == 1){
                //Download this file directly
                var rawfiledata = $(".launchIconWrapper.selected").parent().attr("filedata");
                var filedata = JSON.parse(decodeURIComponent(rawfiledata));
                var filepath = filedata.Filepath;
                //Resolve the link to media download link
                var downloadLink = "media?file=" + filepath + "&download=true";
                window.open(downloadLink)

            }else if ($(".launchIconWrapper.selected").length > 1){
                //Create a zip file using the fs api
                var filelist = [];
                $(".launchIconWrapper.selected").each(function(){
                    var filedata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                    var filepath = filedata.Filepath;
                    filelist.push(filepath);
                });

                $.ajax({
                    url: "system/file_system/zipHandler",
                    data: {opr: "tmpzip", src: JSON.stringify(filelist), dest: ""},
                    method: "POST",
                    success: function(data){
                        if (data.error !== undefined){
                            alert(data.error);
                        }else{
                            //Zip completed.
                            window.open("media?file=" + data + "&download=true");
                        }
                    }
                });
            }
            
            hideAllContextMenus();
        }

        function handleZipFolder(){
            var filelist = [];
            var filename = "desktop_" + new Date().getTime() + ".zip"
            if ($(".launchIconWrapper.selected").length == 1){
                filename = $(".launchIconWrapper.selected").parent().attr('filename') + ".zip";
            }

            $(".launchIconWrapper.selected").each(function(){
                var filedata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                var filepath = filedata.Filepath;
                if (filedata.IsDir == true){
                    filelist.push(filepath);
                }
            });
            $.ajax({
                    url: "system/file_system/zipHandler",
                    data: {opr: "zip", src: JSON.stringify(filelist), dest: "user:/Desktop/" + filename},
                    method: "POST",
                    success: function(data){
                        if (data.error !== undefined){
                            alert(data.error);
                        }else{
                            //Zip completed.
                            console.log(data);
                        }
                    }
                });
            //console.log(filelist);
            hideAllContextMenus();
        }

        function handleOpenWith(target, event){
            $("#subcontextmenu").html("");
            $.get("system/modules/list",function(data){
                if (data.error !== undefined){
                    alert(data.error);
                }else{
                    var supportedModuleCount = 0;
                    var openWithTargets = [];
                    for (var i =0; i < data.length; i++){
                        var thisModule = data[i];
                        if (thisModule.SupportEmb == true){
                            addContextMenuItem($("#subcontextmenu"), thisModule.Name, "", "openSelectedWith", false);
                        }
                        
                    }
                }
                showSubContextMenu(target);
            });
        }

        function openObjectProperty(target, object){
           var filelist = [];
           $(".launchIconWrapper.selected").each(function(){
               var filepath = $(this).parent().attr("filepath");
               filelist.push(filepath);
           });
           
           var hashPassthrough = encodeURIComponent(JSON.stringify(filelist));
            newFloatWindow({
                url: "SystemAO/file_system/file_properties.html#" + hashPassthrough,
                width: 340,
                height: 480,
                appicon: "SystemAO/file_system/img/properties.png",
                title: "File Properties",
            });

            hideAllContextMenus();
        }

        function openSelectedWith(target, event){
            var targetModulename = $(target).text().trim();
            var openFileList = [];
            $(".selected.launchIconWrapper").each(function(){
                var thisFiledata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
               openFileList.push({
                   filename: thisFiledata.Filename,
                   filepath: thisFiledata.Filepath
               });
            });

            //Find the launch info of the module
            var targetModuleInfo = undefined;
            for (var i =0; i < moduleInstalled.length; i++){
                if (moduleInstalled[i].Name == targetModulename){
                    targetModuleInfo = JSON.parse(JSON.stringify(moduleInstalled[i]));
                }
            }

           //Open the files with the given module
            openFileWithModule(targetModuleInfo, openFileList);

            hideAllContextMenus();

        }

        function getModuleInfoFromName(moduleName){
            for (var i = 0; i < moduleInstalled.length; i++){
                if (moduleInstalled[i].Name == moduleName){
                    return moduleInstalled[i];
                }
            }

            return false
        }


        function addContextMenuItem(target, keyword, hotkey = undefined, functionName, containSubMenu = false) {
            var itemClass = "item";
            if (containSubMenu) {
                itemClass = "item submenu";
            }
            if (hotkey !== undefined) {
                target.append(`<div class="${itemClass}" onclick="${functionName}(this,event);">
                        ${keyword}
                        <span class="description">${hotkey}</span>
                    </div>`);
            } else {
                target.append(`<div class="${itemClass}"  onclick="${functionName}(this,event);">
                        ${keyword}
                    </div>`);
            }
        }

        function listIconsize(target, event) {
            $("#subcontextmenu").html("");
            var smallCheckmark = undefined;
            var mediumCheckmark = undefined;
            var bigCheckmark = undefined;
            if (desktopIconSize == "small") {
                smallCheckmark = "<i class='checkmark icon'></i>";
            }
            if (desktopIconSize == "medium") {
                mediumCheckmark = "<i class='checkmark icon'></i>";
            }

            if (desktopIconSize == "big") {
                bigCheckmark = "<i class='checkmark icon'></i>";
            }
            addContextMenuItem($("#subcontextmenu"), "Small", smallCheckmark, "setDesktopIconSize", false);
            addContextMenuItem($("#subcontextmenu"), "Medium", mediumCheckmark, "setDesktopIconSize", false);
            addContextMenuItem($("#subcontextmenu"), "Big", bigCheckmark, "setDesktopIconSize", false);
            showSubContextMenu(target);
        }

        function setDesktopIconSize(target, evt) {
            var targetSize = $(target).text().trim().toLowerCase();
            if (["small", "medium", "big"].includes(targetSize)) {
                desktopIconSize = targetSize;
            }
            refresh();
            setStorage("iconsize", desktopIconSize);
            hideAllContextMenus();
        }

        function addContextMenuSeperator(target) {
            $(target).append(`<div class="divider"></div>`);
        }

        function downloadURL() {
            alert("WIP");
            hideAllContextMenus();
        }

        function background(target, evt) {
            $("#subcontextmenu").html('<div class="item"><i class="loading spinning icon"></i> Loading</div>');
            $.get("system/desktop/theme", function(data) {
                $("#subcontextmenu").html("");
                for (var i = 0; i < data.length; i++) {
                    if (currentUserTheme == data[i].Theme) {
                        addContextMenuItem($("#subcontextmenu"), data[i].Theme, "<i class='checkmark icon'></i>", "setTheme", false);
                    } else {
                        addContextMenuItem($("#subcontextmenu"), data[i].Theme, undefined, "setTheme", false);
                    }

                }
            });
            showSubContextMenu(target);
        }

        //Set theme from button click
        function setTheme(target, evt) {
            var theme = $(target).text().trim();
            setDesktopTheme(theme);
            hideAllContextMenus();
        }

        function personalization() {
            //Show the personalization window
            newFloatWindow({
                url: "SystemAO/desktop/personalization.html",
                appicon: "SystemAO/desktop/img/personalization.png",
                width:640,
                height:480,
                title: "Personalization"
            });
            hideAllContextMenus();
        }

        //New folder on the menu start location
        function newfolder(object, event) {
            var closestLocation = findClosestGrid(menuStartLocation[0], menuStartLocation[1], false);
            let closestPixelLocation = closestLocation[0];
            let closestGridIndexLocation = closestLocation[1];
            //Generate new foldername
            var newFolderName = "New Folder";
            var counter = 1;
            while (desktopFileList.includes(newFolderName)) {
                newFolderName = `New Folder(${counter})`;
                counter++;
            }

            //Check if there are already another object at that locaton
            var duplicateObject = getObjectFromLocation(closestPixelLocation[0], closestPixelLocation[1]);
            var createObjectLocation = true;
            if (duplicateObject !== undefined) {
                //Ignore create position. Let it settle on next new slot.
                createObjectLocation = false;
            }

            //Create the folder
            $.post("system/file_system/newItem", {
                type: "folder",
                src: "user:/Desktop/",
                filename: newFolderName
            }).done(function(data) {
                if (data.error !== undefined) {
                    console.log(data.error);
                } else {
                    if (createObjectLocation) {
                        setIconDesktopLocation(newFolderName, closestGridIndexLocation[0], closestGridIndexLocation[1], function() {
                            //After set Desktop icon, refresh the page 
                            refresh(function() {
                                //After refresh the page, highlight the new folder and set it to rename mode
                                var targetFolderObject = getObjectFromGridLocation(closestGridIndexLocation[0], closestGridIndexLocation[1]);
                                console.log(targetFolderObject);
                                enableRenameOnLaunchIconObject(targetFolderObject);
                            });
                        });
                    }
                }
            });

            /*
            //Open new folder creation window
            var existsingFileList = [];
            for (var i =0; i < desktopFileList.length; i++){
                existsingFileList.push({
                    filename: desktopFileList[i],
                    filepath: "user:/Desktop/" + desktopFileList[i]
                });
            }
            newFloatWindow({
                url: "SystemAO/file_system/newFolder.html#" + encodeURIComponent(JSON.stringify(existsingFileList)),
                appicon: "SystemAO/file_system/img/new folder.png",
                width:560,
                height:340,
                title: "New Folder"
            });
            */
            hideAllContextMenus();
        }

        function enableRenameOnLaunchIconObject(object) {
            renameMode = true;
            $(".launchIcon").attr("draggable", "false");
            var filedata = JSON.parse(decodeURIComponent($(object).attr("filedata")));
            var originalName = filedata.Filename;
            if (filedata.IsShortcut){
                //Shortcut. Use its display name instead
                originalName = filedata.ShortcutName;
            }
            $(object).find(".launchIconText").hide();
            $(object).append(`<textarea class="renameInput ${desktopIconSize}" type="text" ondragstart="return false;" dblclick="event.stopImmediatePropagation(); event.stopImmediatePropagation();"maxlength="32">${originalName}</textarea>`);
            $(object).find(".renameInput")[0].select();
            var index = originalName.lastIndexOf(".");
            console.log(index);
            if( index >= 0){
                $(object).find(".renameInput")[0].setSelectionRange(0, index);
            }

            //Updates 4-5-2021: Added IME support on rename input
            $(object).find(".renameInput")[0].addEventListener("keydown", function(event){
                if (window.ime && window.ime.handler != null){
                    window.ime.handler(event);
                }else{
                    //No IME handler. Just continue the input
                }
            });
            window.ime.focus = $(object).find(".renameInput")[0];
        }

        function exitRenameMode() {
            if (renameMode) {
                $(".launchIcon").attr("draggable", "true");
                $(".launchIcon").find(".launchIconText").show();

                //Update the folder to textarea content
                $(".renameInput").each(function() {
                    if ($(this).text() == "") {
                        //Ignore this update
                    } else {
                        var filedata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                        var filepath = filedata.Filepath;
                        var newFilename = $(this).val();
                        
                        if (filedata.IsShortcut == true){
                            //Shortcut. Edit the shortcut content name
                            let currentInputTextArea = $(this);
                            $.ajax({
                                url: "/system/desktop/opr/renameShortcut",
                                data: {src: filepath, new: newFilename},
                                success: function(data){
                                    if (data.error !== undefined){
                                        //Cancel the operation
                                        console.log("*ERROR* " + data.error);
                                        currentInputTextArea.remove();
                                    }else{
                                        //No need to update the shortcut position (as its name not changed)
                                        refresh(function() {
                                            //Refresh the desktop
                                        });
                                    }
                                }
                            })
                        }else{
                            //Normal typed files / folder. Rename the object
                            let currentInputTextArea = $(this);
                            $.ajax({
                                url: "./system/file_system/fileOpr",
                                method: "POST",
                                data: {opr: "rename", src: JSON.stringify([filepath]), new: JSON.stringify([newFilename])},
                                success: function(data){
                                    if (data.error !== undefined){
                                        //Cancel the operation
                                        console.log("*ERROR* " + data.error);
                                        currentInputTextArea.remove();
                                    }else{
                                        //Update the new file position
                                        let closestLocation = findClosestGrid($(currentInputTextArea).parent().offset().left, $(currentInputTextArea).parent().offset().top);
                                        let closestGridIndexLocation = closestLocation[1];
                                        setIconDesktopLocation(newFilename, closestGridIndexLocation[0], closestGridIndexLocation[1], function(){
                                            //Callback after setting location
                                            refresh(function() {
                                                //Refresh the desktop
                                            });
                                        });
                                    }
                                }
                            });
                        }
                    }
                });

                renameMode = false;
            }
        }

        //Handle opening shortcut folder location
        function handleShortcutFolderOpen(object, event){
            var openPendingFolders = [];
            $(".launchIconWrapper.selected").each(function(){
                var filedata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                console.log(filedata);
                if (filedata.IsShortcut == true){
                    if (filedata.ShortcutType == "folder"){
                        openPendingFolders.push(filedata.ShortcutPath);
                    }else if (filedata.ShortcutType == "module"){
                        openPendingFolders.push("web:/" + filedata.ShortcutPath);
                    }
                    
                }
            });

            //Open all folders
            openPendingFolders.forEach(folder => {
                newFloatWindow({
                    url: "SystemAO/file_system/file_explorer.html#" + encodeURIComponent(folder),
                    appicon: "SystemAO/file_system/img/small_icon.png",
                    width:1080,
                    height:580,
                    title: "File Manager"
                });
            })

            hideAllContextMenus();
        }

        //Handle basic desktop file operations
        function handleFileDelete(object, event){
            var deleteFileList = [];
            $(".launchIconWrapper.selected").each(function(){
                var filedata = JSON.parse(decodeURIComponent($(this).parent().attr("filedata")));
                deleteFileList.push(filedata.Filepath);
            });
            console.log(deleteFileList);
            $.ajax({
                url: "system/file_system/fileOpr",
                method:"POST",
                data: {opr: "recycle", src: JSON.stringify(deleteFileList)},
                success: function(data){
                    if (data.error !== undefined){
                        alert(data.error);
                    }else{
                       refresh(undefined, true);
                    }
                }
            });
            hideAllContextMenus();
        }

        //File Rename
        let renamingItems = [];
        function handleRename(object, event){
            if ($('.launchIconWrapper.selected').length > 0){
                //Enter rename mode
                renamingItems = $('.launchIconWrapper.selected');
                let renameTarget = $('.launchIconWrapper.selected')[0]
                let fileObject = $(renameTarget).parent();
                enableRenameOnLaunchIconObject(fileObject);
            }
            hideAllContextMenus();
        }

        //New item menus.
        function newitemmenu(target, event) {
            $("#subcontextmenu").html("");
            //Append the new folder option first
            addContextMenuItem($("#subcontextmenu"), 'Folder', "<i class='folder icon'></i>", "newfolder", true);
            addContextMenuItem($("#subcontextmenu"), 'Shortcut', "<i class='external icon'></i>", "newshortcut", true);
            addContextMenuSeperator($("#subcontextmenu"));
            $.get("system/file_system/newItem", function(data) {
                for (var i = 0; i < data.length; i++) {
                    var thisNewFile = data[i];
                    var icon = ao_module_utils.getIconFromExt(thisNewFile.Ext);
                    addContextMenuItem($("#subcontextmenu"), `<i class="${icon} icon" ext="${thisNewFile.Ext}"></i> ${thisNewFile.Desc}`, undefined, "newitem");
                }
                //Show sub-context menu
                showSubContextMenu(target);
            });

            
        }

        function showSubContextMenu(target) {
            $("#subcontextmenu").show();
            var targetLeft = $("#contextmenu").offset().left + $("#contextmenu").width() + 2;
            var targetTop = $(target).offset().top - 1;
            if (targetLeft +  $("#subcontextmenu").width() > window.innerWidth){
                //Overflow. Swtich to the left side of the menu
                targetLeft = $("#contextmenu").offset().left - $("#subcontextmenu").width() - 2;
            }
            $("#subcontextmenu").css({
                left: targetLeft,
                top: targetTop
            });
            
        }

        //Create new file item with that filename
        function newitem(object, event) {
            var extension = $(object).find("i").attr("ext");

            //Generate a newfile name
            var newfn = "NewFile" + "." + extension;
            var counter = 1;
            while (desktopFileList.includes(newfn)){
                newfn = "NewFile (" + counter + ")." + extension;
                counter++;
            }

            //Get the location position
            let closestLocation = findClosestGrid(menuStartLocation[0], menuStartLocation[1], false);
            let closestGridIndexLocation = closestLocation[1];

            //Request backend to generate the new file
            $.ajax({
                url: "system/file_system/newItem",
                data: {type: "file",src: "user:/Desktop/",filename: newfn},
                success: function(data){
                    if (data.error !== undefined){
                        alert(data.error);
                    }else{
                        //Set the icon location
                        setIconDesktopLocation(newfn, closestGridIndexLocation[0], closestGridIndexLocation[1], function(){
                            //Refresh the desktop
                            refresh(function(){
                                var targetNewFile = getObjectFromGridLocation(closestGridIndexLocation[0], closestGridIndexLocation[1]);
                                console.log("Renaming ", targetNewFile);
                                enableRenameOnLaunchIconObject(targetNewFile);
                            });
                        });
                    }
                }
            });
            hideAllContextMenus();
        }


        document.getElementById("volumebar").parentNode.addEventListener("touchstart", function(e){
            updateVolume( document.getElementById("volumebar").parentNode, e);
        });

        function getCoordinateFromEvent(e){
            var x = -1;
            var y = -1;
            if (e.originalEvent == undefined){
                e.originalEvent = e;
            }
            if(e.type == 'touchstart' || e.type == 'touchmove' || e.type == 'touchend' || e.type == 'touchcancel'){
                var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
                x = touch.pageX;
                y = touch.pageY;
            } else if (e.type == 'mousedown' || e.type == 'mouseup' || e.type == 'mousemove' || e.type == 'mouseover'|| e.type=='mouseout' || e.type=='mouseenter' || e.type=='mouseleave') {
                x = e.clientX;
                y = e.clientY;
            }else{
                x = e.clientX;
                y = e.clientY;
            }
            return [x,y];
        }

        function updateVolume(object, event){
            var width = $(object).width();
            var left = $(object).offset().left;
            var clickPosition = getCoordinateFromEvent(event)[0];
            var clickRel = clickPosition - left;
            var percentage = clickRel / width * 100;
            if (percentage < 0){
                percentage = 0;
            }else if (percentage > 100){
                percentage = 100;
            }
            //Update the global volume
            $(object).find(".bar").css("width",percentage + "%");
            localStorage.setItem("global_volume", clickRel / width);
        }


        function refresh(callback = undefined, noflash=false) {
            //Refresh desktop contents
            let launchOption = {};
            if (noflash){
                launchOption = {
                    noflash: true
                };
            }else{
                $(".launchIcon").remove();
            }
            if (callback == undefined) {
                initDesktopFiles(launchOption);
            } else {
                initDesktopFiles(launchOption, callback);
            }

            hideAllContextMenus();
        }


        function openfm() {
            //Open file explorer on desktop
            newFloatWindow({
                url: "SystemAO/file_system/file_explorer.html#" + encodeURIComponent("user:/Desktop"),
                appicon: "SystemAO/file_system/img/small_icon.png",
                width: 1080,
                height: 580,
                title: "File Manager"
            });
            hideAllContextMenus();
        }

        /*
            Notification and Notification bar related functions

            Usage:
            title -> The title of the notification
            content -> The content of the notification
            icon (optional) -> The icon of the notification
            windowOpenOption (optional) -> The window opening option for user onclick redirection
        */

        function sendNotification(title, content, icon="notice circle", windowOpenOption=null){
            if (content.length > 100){
                shortenContent = content.substring(0,100) + "...";
            }else{
                shortenContent = content;
            }
            onClickOpenWindowOption = encodeURIComponent(JSON.parse(windowOpenOption));
            $("#notificationlist").append(` <div class="notification object" originalcontent="${content}" redirect="${onClickOpenWindowOption}" onclick="openNotification(this);">
                    <p class="title"><i class="${icon} icon"></i> ${title}</p>
                    <p class="notifycontent">${shortenContent}</p>
                    <div class="closebtn" onclick="event.stopImmediatePropagation(); closeThisNotification(this);"><i class="remove icon"></i></div>
                    <div class="ts divider"></div>
                </div>`);
            $(".nonotification").hide();
            
        }

        function openNotification(obj){
            newWindowOpeningOption = JSON.parse(decodeURIComponent($(obj).attr("redirect")));
            if (newWindowOpeningOption == null){
                //Ignore

            }else{
                //Start a floatWindow to the given target
                newFloatWindow(newWindowOpeningOption);
            }

            //Clear the notiication
            closeThisNotification($(obj).find(".closebtn"));

        }

        function closeThisNotification(obj){
            $(obj).parent().slideUp("fast",function(data){
                $(this).remove();
                if ($(".notification.object").length == 0){
                    $(".nonotification").show();
                }
            });


        }

        function clearAllNotification(){
            $(".notification.object").slideUp('fast',function(data){
                $(this).remove();
                $(".nonotification").show();
            });
        }

        function hideAllContextMenus() {
            $("#subcontextmenu").hide();
            $("#contextmenu").hide()
            $("#quickAccessPanel").slideUp("fast");
        }

        function restart(){
            if (!hardwareman){
                return
            }

            if (confirm("Confirm Restart?")){
                $.ajax({
                    url: "system/power/restart",
                    success: function(data){
                        if (data.error !== undefined){
                            alert(data.error);
                        }
                    },
                    error: function(){

                    }
                });
            }
        }

        function shutdown(){
            if (!hardwareman){
                return
            }

            if (confirm("Confirm Poweroff?")){
                $.ajax({
                    url: "system/power/shutdown",
                    success: function(data){
                        if (data.error !== undefined){
                            alert(data.error);
                        }else{
                            //Shutdown suceed
                        }
                    },
                    error: function(){
                        //Shutdown suceed
                    }
                });
            }

           
        }

        function uploadFile(file, callback=undefined) {
            let url = 'system/file_system/upload'
            let uploadCurrentPath = "user:/Desktop/";
            let formData = new FormData()
            let xhr = new XMLHttpRequest()
            formData.append('file', file);
            formData.append('path', uploadCurrentPath);

            xhr.open('POST', url, true)
            xhr.upload.addEventListener("progress", function(e) {
                console.log((e.loaded * 100.0 / e.total) || 100)
            })

            xhr.addEventListener('readystatechange', function(e) {
                if (xhr.readyState == 4 && xhr.status == 200) {
                    if (callback !== undefined){
                        callback(e.target.response);
                    }
                }
                else if (xhr.readyState == 4 && xhr.status != 200) {
                    console.log("Upload failed :" + xhr.status);
                }
            })
            xhr.send(formData);
        }

        function setStorage(key, value, callback = undefined) {
            $.get("system/desktop/preference?preference=" + key + "&value=" + value, function(data) {
                if (data.error !== undefined) {
                    console.log(data.error);
                } else {
                    if (callback !== undefined) {
                        callback();
                    }

                }
            });
        }

        function getStorage(key, callback) {
            $.get("system/desktop/preference?preference=" + key, callback);
        }

        function showSystemSettings(){
            var hasAccessToSetting = false;
            moduleInstalled.forEach(thismod => {
                if (thismod.Name == "System Setting"){
                    openModule("System Setting");
                }
            })
        }

        function initTheme(targetTheme=undefined){
            if (targetTheme == undefined){
                $.get("../../system/file_system/preference?key=file_explorer/theme", function(data){
                    if (data == "darkTheme"){
                        setDarkTheme();
                    }
                });
            }else{
                //Manual override mode
                if (targetTheme == "darkTheme"){
                    setDarkTheme();
                }else if (targetTheme == "whiteTheme"){
                    setWhiteTheme();
                }
            }
          
        }

        function setFloatWindowTheme(fwid, theme="dark"){
            var targetFW = getFloatWindowByID(fwid);
            if (theme == "dark"){
                $(targetFW).removeClass("white");
            }else if (theme == "white"){
                $(targetFW).addClass("white");
            }
        }

        function checkFileSystemAccess(){
            var allowReadWrite = false;
            moduleInstalled.forEach(thisModule => {
                if (thisModule.Name == "File Manager"){
                    //This user has read write access to file system
                    allowReadWrite = true;
                }
            });

            if (!allowReadWrite){
                sendNotification("READ ONLY Account", "This account is read only. You cannot perform any file operations on this desktop.");
            }
        }

        function setDarkTheme(){
            $("#listMenu").addClass("darkTheme");
            $("#powerIcon").attr("src","img/system/power-white.svg");
            $("#quickAccessPanel").addClass("darkTheme");
            $("#quickAccessPanel").find(".button").addClass("inverted");
        }

        function setWhiteTheme(){
            $("#listMenu").removeClass("darkTheme");
            $("#powerIcon").attr("src","img/system/power.svg");
            $("#quickAccessPanel").removeClass("darkTheme");
            $("#quickAccessPanel").find(".button").removeClass("inverted");
        }

        function hexToRgbA(hex, transparent=1){
            var c;
            if(/^#([A-Fa-f0-9]{3}){1,2}$/.test(hex)){
                c= hex.substring(1).split('');
                if(c.length== 3){
                    c= [c[0], c[0], c[1], c[1], c[2], c[2]];
                }
                c= '0x'+c.join('');
                return 'rgba('+[(c>>16)&255, (c>>8)&255, c&255].join(',')+',' + transparent + ')';
            }
            throw new Error('Bad Hex');
        }

        function setThemeColor(newThemeColor){
            //Update the global theme color
            desktopThemeColor = newThemeColor;

            //Update the related elements
            $("#statusbar").css("background-color",newThemeColor);
            $("#navimenu").css("background-color",hexToRgbA(newThemeColor, 0.5));
            $(".floatWindow .controls").css("background-color",hexToRgbA(newThemeColor, 0.85));

            //List menu theme color bar
            $("#listMenu").find(".searchBar").css("border-bottom", "2px solid " + newThemeColor);
            $("#volumebar").css("background-color", newThemeColor);

            //Connection lost notification css
            $("#connectionLost").find(".ts.card").css("background-color", hexToRgbA(newThemeColor, 0.5));
        }

        //Load the user define theme color to overwrite the default color if exists
        function initUserDefinedThemeColor(){
            $.ajax({
                url: "../../system/file_system/preference",
                data: {key: "themecolor"},
                success: function(data){
                    if (data.error == undefined && data != ""){
                        setThemeColor(data);
                    }
                }
            });
        }

        //Float Window context menu
        function getFocusedFloatWindowID(){
            var targetFloatWindowId = "";
            $(".floatWindow").each(function() {
                var thisWindowZIndex = $(this).css("z-index");
                if (parseInt(thisWindowZIndex) == 101){
                    targetFloatWindowId =  $(this).attr("windowid");
                }
            }); 
            return targetFloatWindowId;
        }

        function getFocusedFloatWindow(){
            var focusedFwId = getFocusedFloatWindowID();
            if (focusedFwId != ""){
                var fw = getFloatWindowByID(focusedFwId);
                return fw;
            }else{
                return undefined;
            }
        }

        function refreshSelectedFloatWindow(target, event){
           var fw = getFocusedFloatWindow();
           if (fw != undefined){
               $(fw).find("iframe")[0].contentWindow.location.reload();
           }
           hideAllContextMenus();
        }

        function maximizeSelectedFloatWindow(target, event){
            var fw = getFocusedFloatWindow();
            if (fw != undefined){
                toggleMax($(fw).find(".buttons.maxtoggle"),event);
            }
            hideAllContextMenus();
        }

        function minimizeSelectedFloatWindow(target, event){
            var fw = getFocusedFloatWindow();
            if (fw != undefined){
                min($(fw).find(".buttons.mintoggle"),event);
            }
            hideAllContextMenus();
        }

        function openSelectedFloatWindowInNewTab(){
            var fw = getFocusedFloatWindow();
            if (fw != undefined){
                var currentURL = $(fw).find("iframe")[0].contentWindow.location;
                window.open(currentURL);
            }
            hideAllContextMenus();
        }

        function closeSelectedFloatWindow(target, event){
            var fw = getFocusedFloatWindow();
            if (fw != undefined){
                closeFloatWindow($(fw).find(".buttons.closetoggle"),event);
            }
            hideAllContextMenus();
        }

        function fullscreen() {
            //Opening full screen will lead to hidden of all iframe for unknown reasons
            var isInFullScreen = (document.fullscreenElement && document.fullscreenElement !== null) ||
                (document.webkitFullscreenElement && document.webkitFullscreenElement !== null) ||
                (document.mozFullScreenElement && document.mozFullScreenElement !== null) ||
                (document.msFullscreenElement && document.msFullscreenElement !== null);
            var elem = document.documentElement;
            if (!isInFullScreen) {
                if (elem.requestFullscreen) {
                    elem.requestFullscreen();
                } else if (elem.mozRequestFullScreen) { /* Firefox */
                    elem.mozRequestFullScreen();
                } else if (elem.webkitRequestFullscreen) { /* Chrome, Safari and Opera */
                    elem.webkitRequestFullscreen();
                } else if (elem.msRequestFullscreen) { /* IE/Edge */
                    elem.msRequestFullscreen();
                }
            } else {
                if (document.exitFullscreen) {
                    document.exitFullscreen();
                } else if (document.webkitExitFullscreen) {
                    document.webkitExitFullscreen();
                } else if (document.mozCancelFullScreen) {
                    document.mozCancelFullScreen();
                } else if (document.msExitFullscreen) {
                    document.msExitFullscreen();
                }
            }

            hideAllContextMenus();
        }


        /*
            Background services for keeping desktop files updated

            Same mechanism is used as file explorer
        */
        let desktopFileHash = "";
        setInterval(function(){
            getDesktopHash(function(hash){
                if (desktopFileHash == ""){
                    //Initialization
                    desktopFileHash = hash;
                }else if (desktopFileHash != hash){
                    //Changed on desktop files. Refresh
                    refresh();
                    desktopFileHash = hash;
                }

                //Else, no file change on desktop
            });
        }, 15000);

        function getDesktopHash(callback){
            $.ajax({
                url: "../../system/file_system/listDirHash",
                data: {dir: "user:/Desktop/"},
                success: function(data){
                    if (data.error !== undefined){
                        
                    }
                    callback(data);
                }
            })
        }

        function bindObjectToIMEEvents(object){
            object.addEventListener("keydown", function(event){
                if (window.ime && window.ime.handler != null){
                    window.ime.handler(event);
                }else{
                    //No IME handler. Just continue the input
                }
            });

            object.addEventListener("focus", function(event){
                if (window.ime){
                    //IME exists. Set this field to focused field
                    window.ime.focus = event.target;
                }
            });
        }
    </script>
</body>

</html>