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Fixes conference disposal in FF.

j8
George Politis 10 年前
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共有 1 个文件被更改，包括 32 次插入 和 10 次删除
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  1. 32
    10
      modules/xmpp/xmpp.js

+ 32
- 10
modules/xmpp/xmpp.js 查看文件 

@@ -190,8 +190,13 @@ function registerListeners() {
190 190 
     });
191 191 
 }
192 192
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-function setupEvents() {
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-    $(window).bind('beforeunload', function () {
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+var unload = (function () {
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+    var unloaded = false;
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+
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+    return function () {
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+        if (unloaded) { return; }
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+        unloaded = true;
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+
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         if (connection && connection.connected) {
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             // ensure signout
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             $.ajax({
 
@@ -200,24 +205,41 @@ function setupEvents() {
200 205 
                 async: false,
201 206 
                 cache: false,
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                 contentType: 'application/xml',
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-                data: "<body rid='" + (connection.rid || connection._proto.rid)
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-                    + "' xmlns='http://jabber.org/protocol/httpbind' sid='"
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-                    + (connection.sid || connection._proto.sid)
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-                    + "' type='terminate'>" +
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-                    "<presence xmlns='jabber:client' type='unavailable'/>" +
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-                    "</body>",
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+                data: "<body rid='" + (connection.rid || connection._proto.rid) +
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+                    "' xmlns='http://jabber.org/protocol/httpbind' sid='" +
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+                    (connection.sid || connection._proto.sid)  +
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+                    "' type='terminate'>" +
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+                "<presence xmlns='jabber:client' type='unavailable'/>" +
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+                "</body>",
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                 success: function (data) {
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                     console.log('signed out');
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                     console.log(data);
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                 },
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                 error: function (XMLHttpRequest, textStatus, errorThrown) {
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                     console.log('signout error',
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-                            textStatus + ' (' + errorThrown + ')');
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+                        textStatus + ' (' + errorThrown + ')');
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                 }
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             });
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         }
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         XMPP.disposeConference(true);
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-    });
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+    };
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+})();
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+
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+function setupEvents() {
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+    // In recent versions of FF the 'beforeunload' event is not fired when the
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+    // window or the tab is closed. It is only fired when we leave the page
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+    // (change URL). If this participant doesn't unload properly, then it
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+    // becomes a ghost for the rest of the participants that stay in the
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+    // conference. Thankfully handling the 'unload' event in addition to the
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+    // 'beforeunload' event seems to garante the execution of the 'unload'
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+    // method at least once.
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+    //
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+    // The 'unload' method can safely be run multiple times, it will actually do
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+    // something only the first time that it's run, so we're don't have to worry
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+    // about browsers that fire both events.
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+
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+    $(window).bind('beforeunload', unload);
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+    $(window).bind('unload', unload);
221 243 
 }
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223 245 
 var XMPP = {

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