The Tor Browser / file comparison
comparison: testing/specialpowers/components/SpecialPowersObserver.js
testing/specialpowers/components/SpecialPowersObserver.js
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 // Based on: | |
| 6 // https://bugzilla.mozilla.org/show_bug.cgi?id=549539 | |
| 7 // https://bug549539.bugzilla.mozilla.org/attachment.cgi?id=429661 | |
| 8 // https://developer.mozilla.org/en/XPCOM/XPCOM_changes_in_Gecko_1.9.3 | |
| 9 // http://mxr.mozilla.org/mozilla-central/source/toolkit/components/console/hudservice/HUDService.jsm#3240 | |
| 10 // https://developer.mozilla.org/en/how_to_build_an_xpcom_component_in_javascript | |
| 11 | |
| 12 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 13 Components.utils.import("resource://gre/modules/Services.jsm"); | |
| 14 | |
| 15 const Cc = Components.classes; | |
| 16 const Ci = Components.interfaces; | |
| 17 | |
| 18 const CHILD_SCRIPT = "chrome://specialpowers/content/specialpowers.js" | |
| 19 const CHILD_SCRIPT_API = "chrome://specialpowers/content/specialpowersAPI.js" | |
| 20 const CHILD_LOGGER_SCRIPT = "chrome://specialpowers/content/MozillaLogger.js" | |
| 21 | |
| 22 | |
| 23 // Glue to add in the observer API to this object. This allows us to share code with chrome tests | |
| 24 var loader = Components.classes["@mozilla.org/moz/jssubscript-loader;1"] | |
| 25 .getService(Components.interfaces.mozIJSSubScriptLoader); | |
| 26 loader.loadSubScript("chrome://specialpowers/content/SpecialPowersObserverAPI.js"); | |
| 27 | |
| 28 /* XPCOM gunk */ | |
| 29 this.SpecialPowersObserver = function SpecialPowersObserver() { | |
| 30 this._isFrameScriptLoaded = false; | |
| 31 this._mmIsGlobal = true; | |
| 32 this._messageManager = Cc["@mozilla.org/globalmessagemanager;1"]. | |
| 33 getService(Ci.nsIMessageBroadcaster); | |
| 34 } | |
| 35 | |
| 36 | |
| 37 SpecialPowersObserver.prototype = new SpecialPowersObserverAPI(); | |
| 38 | |
| 39 SpecialPowersObserver.prototype.classDescription = "Special powers Observer for use in testing."; | |
| 40 SpecialPowersObserver.prototype.classID = Components.ID("{59a52458-13e0-4d93-9d85-a637344f29a1}"); | |
| 41 SpecialPowersObserver.prototype.contractID = "@mozilla.org/special-powers-observer;1"; | |
| 42 SpecialPowersObserver.prototype.QueryInterface = XPCOMUtils.generateQI([Components.interfaces.nsIObserver]); | |
| 43 SpecialPowersObserver.prototype._xpcom_categories = [{category: "profile-after-change", service: true }]; | |
| 44 | |
| 45 SpecialPowersObserver.prototype.observe = function(aSubject, aTopic, aData) | |
| 46 { | |
| 47 switch (aTopic) { | |
| 48 case "profile-after-change": | |
| 49 this.init(); | |
| 50 break; | |
| 51 | |
| 52 case "chrome-document-global-created": | |
| 53 if (!this._isFrameScriptLoaded) { | |
| 54 // Register for any messages our API needs us to handle | |
| 55 this._messageManager.addMessageListener("SPPrefService", this); | |
| 56 this._messageManager.addMessageListener("SPProcessCrashService", this); | |
| 57 this._messageManager.addMessageListener("SPPingService", this); | |
| 58 this._messageManager.addMessageListener("SpecialPowers.Quit", this); | |
| 59 this._messageManager.addMessageListener("SpecialPowers.Focus", this); | |
| 60 this._messageManager.addMessageListener("SPPermissionManager", this); | |
| 61 this._messageManager.addMessageListener("SPWebAppService", this); | |
| 62 this._messageManager.addMessageListener("SPObserverService", this); | |
| 63 this._messageManager.addMessageListener("SPLoadChromeScript", this); | |
| 64 this._messageManager.addMessageListener("SPChromeScriptMessage", this); | |
| 65 | |
| 66 this._messageManager.loadFrameScript(CHILD_LOGGER_SCRIPT, true); | |
| 67 this._messageManager.loadFrameScript(CHILD_SCRIPT_API, true); | |
| 68 this._messageManager.loadFrameScript(CHILD_SCRIPT, true); | |
| 69 this._isFrameScriptLoaded = true; | |
| 70 } | |
| 71 break; | |
| 72 | |
| 73 case "http-on-modify-request": | |
| 74 if (aSubject instanceof Ci.nsIChannel) { | |
| 75 let uri = aSubject.URI.spec; | |
| 76 this._sendAsyncMessage("specialpowers-http-notify-request", { uri: uri }); | |
| 77 } | |
| 78 break; | |
| 79 | |
| 80 case "xpcom-shutdown": | |
| 81 this.uninit(); | |
| 82 break; | |
| 83 | |
| 84 default: | |
| 85 this._observe(aSubject, aTopic, aData); | |
| 86 break; | |
| 87 } | |
| 88 }; | |
| 89 | |
| 90 SpecialPowersObserver.prototype._sendAsyncMessage = function(msgname, msg) | |
| 91 { | |
| 92 if (this._mmIsGlobal) { | |
| 93 this._messageManager.broadcastAsyncMessage(msgname, msg); | |
| 94 } | |
| 95 else { | |
| 96 this._messageManager.sendAsyncMessage(msgname, msg); | |
| 97 } | |
| 98 }; | |
| 99 | |
| 100 SpecialPowersObserver.prototype._receiveMessage = function(aMessage) { | |
| 101 return this._receiveMessageAPI(aMessage); | |
| 102 }; | |
| 103 | |
| 104 SpecialPowersObserver.prototype.init = function(messageManager) | |
| 105 { | |
| 106 var obs = Services.obs; | |
| 107 obs.addObserver(this, "xpcom-shutdown", false); | |
| 108 obs.addObserver(this, "chrome-document-global-created", false); | |
| 109 obs.addObserver(this, "http-on-modify-request", false); | |
| 110 | |
| 111 if (messageManager) { | |
| 112 this._messageManager = messageManager; | |
| 113 this._mmIsGlobal = false; | |
| 114 } | |
| 115 }; | |
| 116 | |
| 117 SpecialPowersObserver.prototype.uninit = function() | |
| 118 { | |
| 119 var obs = Services.obs; | |
| 120 obs.removeObserver(this, "chrome-document-global-created"); | |
| 121 obs.removeObserver(this, "http-on-modify-request"); | |
| 122 this._removeProcessCrashObservers(); | |
| 123 }; | |
| 124 | |
| 125 SpecialPowersObserver.prototype._addProcessCrashObservers = function() { | |
| 126 if (this._processCrashObserversRegistered) { | |
| 127 return; | |
| 128 } | |
| 129 | |
| 130 var obs = Components.classes["@mozilla.org/observer-service;1"] | |
| 131 .getService(Components.interfaces.nsIObserverService); | |
| 132 | |
| 133 obs.addObserver(this, "plugin-crashed", false); | |
| 134 obs.addObserver(this, "ipc:content-shutdown", false); | |
| 135 this._processCrashObserversRegistered = true; | |
| 136 }; | |
| 137 | |
| 138 SpecialPowersObserver.prototype._removeProcessCrashObservers = function() { | |
| 139 if (!this._processCrashObserversRegistered) { | |
| 140 return; | |
| 141 } | |
| 142 | |
| 143 var obs = Components.classes["@mozilla.org/observer-service;1"] | |
| 144 .getService(Components.interfaces.nsIObserverService); | |
| 145 | |
| 146 obs.removeObserver(this, "plugin-crashed"); | |
| 147 obs.removeObserver(this, "ipc:content-shutdown"); | |
| 148 this._processCrashObserversRegistered = false; | |
| 149 }; | |
| 150 | |
| 151 /** | |
| 152 * messageManager callback function | |
| 153 * This will get requests from our API in the window and process them in chrome for it | |
| 154 **/ | |
| 155 SpecialPowersObserver.prototype.receiveMessage = function(aMessage) { | |
| 156 switch(aMessage.name) { | |
| 157 case "SPPingService": | |
| 158 if (aMessage.json.op == "ping") { | |
| 159 aMessage.target | |
| 160 .QueryInterface(Ci.nsIFrameLoaderOwner) | |
| 161 .frameLoader | |
| 162 .messageManager | |
| 163 .sendAsyncMessage("SPPingService", { op: "pong" }); | |
| 164 } | |
| 165 break; | |
| 166 case "SpecialPowers.Quit": | |
| 167 let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup); | |
| 168 appStartup.quit(Ci.nsIAppStartup.eForceQuit); | |
| 169 break; | |
| 170 case "SpecialPowers.Focus": | |
| 171 aMessage.target.focus(); | |
| 172 break; | |
| 173 default: | |
| 174 return this._receiveMessage(aMessage); | |
| 175 } | |
| 176 }; | |
| 177 | |
| 178 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SpecialPowersObserver]); |
