Adde novnc js

static/js/novnc/webutil.js

@@ -0,0 +1,216 @@
+/*
+ * noVNC: HTML5 VNC client
+ * Copyright (C) 2012 Joel Martin
+ * Licensed under MPL 2.0 (see LICENSE.txt)
+ *
+ * See README.md for usage and integration instructions.
+ */
+
+"use strict";
+/*jslint bitwise: false, white: false */
+/*global Util, window, document */
+
+// Globals defined here
+var WebUtil = {}, $D;
+
+/*
+ * Simple DOM selector by ID
+ */
+if (!window.$D) {
+    window.$D = function (id) {
+        if (document.getElementById) {
+            return document.getElementById(id);
+        } else if (document.all) {
+            return document.all[id];
+        } else if (document.layers) {
+            return document.layers[id];
+        }
+        return undefined;
+    };
+}
+
+
+/* 
+ * ------------------------------------------------------
+ * Namespaced in WebUtil
+ * ------------------------------------------------------
+ */
+
+// init log level reading the logging HTTP param
+WebUtil.init_logging = function(level) {
+    if (typeof level !== "undefined") {
+        Util._log_level = level;
+    } else {
+        Util._log_level = (document.location.href.match(
+            /logging=([A-Za-z0-9\._\-]*)/) ||
+            ['', Util._log_level])[1];
+    }
+    Util.init_logging();
+};
+
+
+WebUtil.dirObj = function (obj, depth, parent) {
+    var i, msg = "", val = "";
+    if (! depth) { depth=2; }
+    if (! parent) { parent= ""; }
+
+    // Print the properties of the passed-in object 
+    for (i in obj) {
+        if ((depth > 1) && (typeof obj[i] === "object")) { 
+            // Recurse attributes that are objects
+            msg += WebUtil.dirObj(obj[i], depth-1, parent + "." + i);
+        } else {
+            //val = new String(obj[i]).replace("\n", " ");
+            if (typeof(obj[i]) === "undefined") {
+                val = "undefined";
+            } else {
+                val = obj[i].toString().replace("\n", " ");
+            }
+            if (val.length > 30) {
+                val = val.substr(0,30) + "...";
+            } 
+            msg += parent + "." + i + ": " + val + "\n";
+        }
+    }
+    return msg;
+};
+
+// Read a query string variable
+WebUtil.getQueryVar = function(name, defVal) {
+    var re = new RegExp('[?][^#]*' + name + '=([^&#]*)'),
+        match = document.location.href.match(re);
+    if (typeof defVal === 'undefined') { defVal = null; }
+    if (match) {
+        return decodeURIComponent(match[1]);
+    } else {
+        return defVal;
+    }
+};
+
+
+/*
+ * Cookie handling. Dervied from: http://www.quirksmode.org/js/cookies.html
+ */
+
+// No days means only for this browser session
+WebUtil.createCookie = function(name,value,days) {
+    var date, expires;
+    if (days) {
+        date = new Date();
+        date.setTime(date.getTime()+(days*24*60*60*1000));
+        expires = "; expires="+date.toGMTString();
+    }
+    else {
+        expires = "";
+    }
+    document.cookie = name+"="+value+expires+"; path=/";
+};
+
+WebUtil.readCookie = function(name, defaultValue) {
+    var i, c, nameEQ = name + "=", ca = document.cookie.split(';');
+    for(i=0; i < ca.length; i += 1) {
+        c = ca[i];
+        while (c.charAt(0) === ' ') { c = c.substring(1,c.length); }
+        if (c.indexOf(nameEQ) === 0) { return c.substring(nameEQ.length,c.length); }
+    }
+    return (typeof defaultValue !== 'undefined') ? defaultValue : null;
+};
+
+WebUtil.eraseCookie = function(name) {
+    WebUtil.createCookie(name,"",-1);
+};
+
+/*
+ * Setting handling.
+ */
+
+WebUtil.initSettings = function(callback) {
+    var callbackArgs = Array.prototype.slice.call(arguments, 1);
+    if (window.chrome && window.chrome.storage) {
+        window.chrome.storage.sync.get(function (cfg) {
+            WebUtil.settings = cfg;
+            console.log(WebUtil.settings);
+            if (callback) {
+                callback.apply(this, callbackArgs);
+            }
+        });
+    } else {
+        // No-op
+        if (callback) {
+            callback.apply(this, callbackArgs);
+        }
+    }
+};
+
+// No days means only for this browser session
+WebUtil.writeSetting = function(name, value) {
+    if (window.chrome && window.chrome.storage) {
+        //console.log("writeSetting:", name, value);
+        if (WebUtil.settings[name] !== value) {
+            WebUtil.settings[name] = value;
+            window.chrome.storage.sync.set(WebUtil.settings);
+        }
+    } else {
+        localStorage.setItem(name, value);
+    }
+};
+
+WebUtil.readSetting = function(name, defaultValue) {
+    var value;
+    if (window.chrome && window.chrome.storage) {
+        value = WebUtil.settings[name];
+    } else {
+        value = localStorage.getItem(name);
+    }
+    if (typeof value === "undefined") {
+        value = null;
+    }
+    if (value === null && typeof defaultValue !== undefined) {
+        return defaultValue;
+    } else {
+        return value;
+    }
+};
+
+WebUtil.eraseSetting = function(name) {
+    if (window.chrome && window.chrome.storage) {
+        window.chrome.storage.sync.remove(name);
+        delete WebUtil.settings[name];
+    } else {
+        localStorage.removeItem(name);
+    }
+};
+
+/*
+ * Alternate stylesheet selection
+ */
+WebUtil.getStylesheets = function() { var i, links, sheets = [];
+    links = document.getElementsByTagName("link");
+    for (i = 0; i < links.length; i += 1) {
+        if (links[i].title &&
+            links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) {
+            sheets.push(links[i]);
+        }
+    }
+    return sheets;
+};
+
+// No sheet means try and use value from cookie, null sheet used to
+// clear all alternates.
+WebUtil.selectStylesheet = function(sheet) {
+    var i, link, sheets = WebUtil.getStylesheets();
+    if (typeof sheet === 'undefined') {
+        sheet = 'default';
+    }
+    for (i=0; i < sheets.length; i += 1) {
+        link = sheets[i];
+        if (link.title === sheet) {    
+            Util.Debug("Using stylesheet " + sheet);
+            link.disabled = false;
+        } else {
+            //Util.Debug("Skipping stylesheet " + link.title);
+            link.disabled = true;
+        }
+    }
+    return sheet;
+};