Add m-esr52 at 52.6.0

1 files changed, 172 insertions, 0 deletions

diff --git a/uriloader/exthandler/nsWebHandlerApp.js b/uriloader/exthandler/nsWebHandlerApp.js
new file mode 100644
index 0000000000..65d600f551
--- /dev/null
+++ b/uriloader/exthandler/nsWebHandlerApp.js
@@ -0,0 +1,172 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+////////////////////////////////////////////////////////////////////////////////
+//// Constants
+
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cc = Components.classes;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+////////////////////////////////////////////////////////////////////////////////
+//// nsWebHandler class
+
+function nsWebHandlerApp() {}
+
+nsWebHandlerApp.prototype = {
+  //////////////////////////////////////////////////////////////////////////////
+  //// nsWebHandler
+
+  classDescription: "A web handler for protocols and content",
+  classID: Components.ID("8b1ae382-51a9-4972-b930-56977a57919d"),
+  contractID: "@mozilla.org/uriloader/web-handler-app;1",
+
+  _name: null,
+  _detailedDescription: null,
+  _uriTemplate: null,
+
+  //////////////////////////////////////////////////////////////////////////////
+  //// nsIHandlerApp
+
+  get name() {
+    return this._name;
+  },
+
+  set name(aName) {
+    this._name = aName;
+  },
+
+  get detailedDescription() {
+    return this._detailedDescription;
+  },
+
+  set detailedDescription(aDesc) {
+    this._detailedDescription = aDesc;
+  },
+
+  equals: function(aHandlerApp) {
+    if (!aHandlerApp)
+      throw Cr.NS_ERROR_NULL_POINTER;
+
+    if (aHandlerApp instanceof Ci.nsIWebHandlerApp &&
+        aHandlerApp.uriTemplate &&
+        this.uriTemplate &&
+        aHandlerApp.uriTemplate == this.uriTemplate)
+      return true;
+
+    return false;
+  },
+
+  launchWithURI: function nWHA__launchWithURI(aURI, aWindowContext) {
+
+    // XXX need to strip passwd & username from URI to handle, as per the
+    // WhatWG HTML5 draft.  nsSimpleURL, which is what we're going to get,
+    // can't do this directly.  Ideally, we'd fix nsStandardURL to make it
+    // possible to turn off all of its quirks handling, and use that...
+
+    // encode the URI to be handled
+    var escapedUriSpecToHandle = encodeURIComponent(aURI.spec);
+
+    // insert the encoded URI and create the object version 
+    var uriSpecToSend = this.uriTemplate.replace("%s", escapedUriSpecToHandle);
+    var ioService = Cc["@mozilla.org/network/io-service;1"].
+                    getService(Ci.nsIIOService);
+    var uriToSend = ioService.newURI(uriSpecToSend, null, null);
+    
+    // if we have a window context, use the URI loader to load there
+    if (aWindowContext) {
+      try {
+        // getInterface throws if the object doesn't implement the given
+        // interface, so this try/catch statement is more of an if.
+        // If aWindowContext refers to a remote docshell, send the load
+        // request to the correct process.
+        aWindowContext.getInterface(Ci.nsIRemoteWindowContext)
+                      .openURI(uriToSend);
+        return;
+      } catch (e) {
+        if (e.result != Cr.NS_NOINTERFACE) {
+          throw e;
+        }
+      }
+
+      // create a channel from this URI
+      var channel = NetUtil.newChannel({
+        uri: uriToSend,
+        loadUsingSystemPrincipal: true
+      });
+      channel.loadFlags = Ci.nsIChannel.LOAD_DOCUMENT_URI;
+
+      // load the channel
+      var uriLoader = Cc["@mozilla.org/uriloader;1"].
+                      getService(Ci.nsIURILoader);
+      // XXX ideally, whether to pass the IS_CONTENT_PREFERRED flag should be
+      // passed in from above.  Practically, the flag is probably a reasonable
+      // default since browsers don't care much, and link click is likely to be
+      // the more interesting case for non-browser apps.  See 
+      // <https://bugzilla.mozilla.org/show_bug.cgi?id=392957#c9> for details.
+      uriLoader.openURI(channel, Ci.nsIURILoader.IS_CONTENT_PREFERRED,
+                        aWindowContext);
+      return;
+    } 
+
+    // since we don't have a window context, hand it off to a browser
+    var windowMediator = Cc["@mozilla.org/appshell/window-mediator;1"].
+      getService(Ci.nsIWindowMediator);
+
+    // get browser dom window
+    var browserDOMWin = windowMediator.getMostRecentWindow("navigator:browser")
+                        .QueryInterface(Ci.nsIDOMChromeWindow)
+                        .browserDOMWindow;
+
+    // if we got an exception, there are several possible reasons why:
+    // a) this gecko embedding doesn't provide an nsIBrowserDOMWindow
+    //    implementation (i.e. doesn't support browser-style functionality),
+    //    so we need to kick the URL out to the OS default browser.  This is
+    //    the subject of bug 394479.
+    // b) this embedding does provide an nsIBrowserDOMWindow impl, but
+    //    there doesn't happen to be a browser window open at the moment; one
+    //    should be opened.  It's not clear whether this situation will really
+    //    ever occur in real life.  If it does, the only API that I can find
+    //    that seems reasonably likely to work for most embedders is the
+    //    command line handler.  
+    // c) something else went wrong 
+    //
+    // it's not clear how one would differentiate between the three cases
+    // above, so for now we don't catch the exception
+
+    // openURI
+    browserDOMWin.openURI(uriToSend,
+                          null, // no window.opener
+                          Ci.nsIBrowserDOMWindow.OPEN_DEFAULTWINDOW,
+                          Ci.nsIBrowserDOMWindow.OPEN_NEW);
+      
+    return;
+  },
+
+  //////////////////////////////////////////////////////////////////////////////
+  //// nsIWebHandlerApp
+
+  get uriTemplate() {
+    return this._uriTemplate;
+  },
+
+  set uriTemplate(aURITemplate) {
+    this._uriTemplate = aURITemplate;
+  },
+
+  //////////////////////////////////////////////////////////////////////////////
+  //// nsISupports
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebHandlerApp, Ci.nsIHandlerApp])
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//// Module
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsWebHandlerApp]);
+