diff options
Diffstat (limited to 'browser/extensions/pdfjs/content/PdfjsChromeUtils.jsm')
| -rw-r--r-- | browser/extensions/pdfjs/content/PdfjsChromeUtils.jsm | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/browser/extensions/pdfjs/content/PdfjsChromeUtils.jsm b/browser/extensions/pdfjs/content/PdfjsChromeUtils.jsm deleted file mode 100644 index 7a082b6af..000000000 --- a/browser/extensions/pdfjs/content/PdfjsChromeUtils.jsm +++ /dev/null @@ -1,357 +0,0 @@ -/* Copyright 2012 Mozilla Foundation - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* jshint esnext:true */ -/* globals Components, Services, XPCOMUtils */ - -'use strict'; - -var EXPORTED_SYMBOLS = ['PdfjsChromeUtils']; - -const Cc = Components.classes; -const Ci = Components.interfaces; -const Cr = Components.results; -const Cu = Components.utils; - -const PREF_PREFIX = 'pdfjs'; -const PDF_CONTENT_TYPE = 'application/pdf'; - -Cu.import('resource://gre/modules/XPCOMUtils.jsm'); -Cu.import('resource://gre/modules/Services.jsm'); - -var Svc = {}; -XPCOMUtils.defineLazyServiceGetter(Svc, 'mime', - '@mozilla.org/mime;1', - 'nsIMIMEService'); - -var DEFAULT_PREFERENCES = -{ - "showPreviousViewOnLoad": true, - "defaultZoomValue": "", - "sidebarViewOnLoad": 0, - "enableHandToolOnLoad": false, - "enableWebGL": false, - "pdfBugEnabled": false, - "disableRange": false, - "disableStream": false, - "disableAutoFetch": false, - "disableFontFace": false, - "disableTextLayer": false, - "useOnlyCssZoom": false, - "externalLinkTarget": 0, - "enhanceTextSelection": false, - "renderInteractiveForms": false, - "disablePageLabels": false -} - - -var PdfjsChromeUtils = { - // For security purposes when running remote, we restrict preferences - // content can access. - _allowedPrefNames: Object.keys(DEFAULT_PREFERENCES), - _ppmm: null, - _mmg: null, - - /* - * Public API - */ - - init: function () { - this._browsers = new WeakSet(); - if (!this._ppmm) { - // global parent process message manager (PPMM) - this._ppmm = Cc['@mozilla.org/parentprocessmessagemanager;1']. - getService(Ci.nsIMessageBroadcaster); - this._ppmm.addMessageListener('PDFJS:Parent:clearUserPref', this); - this._ppmm.addMessageListener('PDFJS:Parent:setIntPref', this); - this._ppmm.addMessageListener('PDFJS:Parent:setBoolPref', this); - this._ppmm.addMessageListener('PDFJS:Parent:setCharPref', this); - this._ppmm.addMessageListener('PDFJS:Parent:setStringPref', this); - this._ppmm.addMessageListener('PDFJS:Parent:isDefaultHandlerApp', this); - - // global dom message manager (MMg) - this._mmg = Cc['@mozilla.org/globalmessagemanager;1']. - getService(Ci.nsIMessageListenerManager); - this._mmg.addMessageListener('PDFJS:Parent:displayWarning', this); - - this._mmg.addMessageListener('PDFJS:Parent:addEventListener', this); - this._mmg.addMessageListener('PDFJS:Parent:removeEventListener', this); - this._mmg.addMessageListener('PDFJS:Parent:updateControlState', this); - - // observer to handle shutdown - Services.obs.addObserver(this, 'quit-application', false); - } - }, - - uninit: function () { - if (this._ppmm) { - this._ppmm.removeMessageListener('PDFJS:Parent:clearUserPref', this); - this._ppmm.removeMessageListener('PDFJS:Parent:setIntPref', this); - this._ppmm.removeMessageListener('PDFJS:Parent:setBoolPref', this); - this._ppmm.removeMessageListener('PDFJS:Parent:setCharPref', this); - this._ppmm.removeMessageListener('PDFJS:Parent:setStringPref', this); - this._ppmm.removeMessageListener('PDFJS:Parent:isDefaultHandlerApp', - this); - - this._mmg.removeMessageListener('PDFJS:Parent:displayWarning', this); - - this._mmg.removeMessageListener('PDFJS:Parent:addEventListener', this); - this._mmg.removeMessageListener('PDFJS:Parent:removeEventListener', this); - this._mmg.removeMessageListener('PDFJS:Parent:updateControlState', this); - - Services.obs.removeObserver(this, 'quit-application', false); - - this._mmg = null; - this._ppmm = null; - } - }, - - /* - * Called by the main module when preference changes are picked up - * in the parent process. Observers don't propagate so we need to - * instruct the child to refresh its configuration and (possibly) - * the module's registration. - */ - notifyChildOfSettingsChange: function () { - if (Services.appinfo.processType === - Services.appinfo.PROCESS_TYPE_DEFAULT && this._ppmm) { - // XXX kinda bad, we want to get the parent process mm associated - // with the content process. _ppmm is currently the global process - // manager, which means this is going to fire to every child process - // we have open. Unfortunately I can't find a way to get at that - // process specific mm from js. - this._ppmm.broadcastAsyncMessage('PDFJS:Child:refreshSettings', {}); - } - }, - - /* - * Events - */ - - observe: function(aSubject, aTopic, aData) { - if (aTopic === 'quit-application') { - this.uninit(); - } - }, - - receiveMessage: function (aMsg) { - switch (aMsg.name) { - case 'PDFJS:Parent:clearUserPref': - this._clearUserPref(aMsg.data.name); - break; - case 'PDFJS:Parent:setIntPref': - this._setIntPref(aMsg.data.name, aMsg.data.value); - break; - case 'PDFJS:Parent:setBoolPref': - this._setBoolPref(aMsg.data.name, aMsg.data.value); - break; - case 'PDFJS:Parent:setCharPref': - this._setCharPref(aMsg.data.name, aMsg.data.value); - break; - case 'PDFJS:Parent:setStringPref': - this._setStringPref(aMsg.data.name, aMsg.data.value); - break; - case 'PDFJS:Parent:isDefaultHandlerApp': - return this.isDefaultHandlerApp(); - case 'PDFJS:Parent:displayWarning': - this._displayWarning(aMsg); - break; - - - case 'PDFJS:Parent:updateControlState': - return this._updateControlState(aMsg); - case 'PDFJS:Parent:addEventListener': - return this._addEventListener(aMsg); - case 'PDFJS:Parent:removeEventListener': - return this._removeEventListener(aMsg); - } - }, - - /* - * Internal - */ - - _findbarFromMessage: function(aMsg) { - let browser = aMsg.target; - let tabbrowser = browser.getTabBrowser(); - let tab = tabbrowser.getTabForBrowser(browser); - return tabbrowser.getFindBar(tab); - }, - - _updateControlState: function (aMsg) { - let data = aMsg.data; - this._findbarFromMessage(aMsg) - .updateControlState(data.result, data.findPrevious); - }, - - handleEvent: function(aEvent) { - // To avoid forwarding the message as a CPOW, create a structured cloneable - // version of the event for both performance, and ease of usage, reasons. - let type = aEvent.type; - let detail = { - query: aEvent.detail.query, - caseSensitive: aEvent.detail.caseSensitive, - highlightAll: aEvent.detail.highlightAll, - findPrevious: aEvent.detail.findPrevious - }; - - let browser = aEvent.currentTarget.browser; - if (!this._browsers.has(browser)) { - throw new Error('FindEventManager was not bound ' + - 'for the current browser.'); - } - // Only forward the events if the current browser is a registered browser. - let mm = browser.messageManager; - mm.sendAsyncMessage('PDFJS:Child:handleEvent', - { type: type, detail: detail }); - aEvent.preventDefault(); - }, - - _types: ['find', - 'findagain', - 'findhighlightallchange', - 'findcasesensitivitychange'], - - _addEventListener: function (aMsg) { - let browser = aMsg.target; - if (this._browsers.has(browser)) { - throw new Error('FindEventManager was bound 2nd time ' + - 'without unbinding it first.'); - } - - // Since this jsm is global, we need to store all the browsers - // we have to forward the messages for. - this._browsers.add(browser); - - // And we need to start listening to find events. - for (var i = 0; i < this._types.length; i++) { - var type = this._types[i]; - this._findbarFromMessage(aMsg) - .addEventListener(type, this, true); - } - }, - - _removeEventListener: function (aMsg) { - let browser = aMsg.target; - if (!this._browsers.has(browser)) { - throw new Error('FindEventManager was unbound without binding it first.'); - } - - this._browsers.delete(browser); - - // No reason to listen to find events any longer. - for (var i = 0; i < this._types.length; i++) { - var type = this._types[i]; - this._findbarFromMessage(aMsg) - .removeEventListener(type, this, true); - } - }, - - _ensurePreferenceAllowed: function (aPrefName) { - let unPrefixedName = aPrefName.split(PREF_PREFIX + '.'); - if (unPrefixedName[0] !== '' || - this._allowedPrefNames.indexOf(unPrefixedName[1]) === -1) { - let msg = '"' + aPrefName + '" ' + - 'can\'t be accessed from content. See PdfjsChromeUtils.'; - throw new Error(msg); - } - }, - - _clearUserPref: function (aPrefName) { - this._ensurePreferenceAllowed(aPrefName); - Services.prefs.clearUserPref(aPrefName); - }, - - _setIntPref: function (aPrefName, aPrefValue) { - this._ensurePreferenceAllowed(aPrefName); - Services.prefs.setIntPref(aPrefName, aPrefValue); - }, - - _setBoolPref: function (aPrefName, aPrefValue) { - this._ensurePreferenceAllowed(aPrefName); - Services.prefs.setBoolPref(aPrefName, aPrefValue); - }, - - _setCharPref: function (aPrefName, aPrefValue) { - this._ensurePreferenceAllowed(aPrefName); - Services.prefs.setCharPref(aPrefName, aPrefValue); - }, - - _setStringPref: function (aPrefName, aPrefValue) { - this._ensurePreferenceAllowed(aPrefName); - let str = Cc['@mozilla.org/supports-string;1'] - .createInstance(Ci.nsISupportsString); - str.data = aPrefValue; - Services.prefs.setComplexValue(aPrefName, Ci.nsISupportsString, str); - }, - - /* - * Svc.mime doesn't have profile information in the child, so - * we bounce this pdfjs enabled configuration check over to the - * parent. - */ - isDefaultHandlerApp: function () { - var handlerInfo = Svc.mime.getFromTypeAndExtension(PDF_CONTENT_TYPE, 'pdf'); - return (!handlerInfo.alwaysAskBeforeHandling && - handlerInfo.preferredAction === Ci.nsIHandlerInfo.handleInternally); - }, - - /* - * Display a notification warning when the renderer isn't sure - * a pdf displayed correctly. - */ - _displayWarning: function (aMsg) { - let data = aMsg.data; - let browser = aMsg.target; - - let tabbrowser = browser.getTabBrowser(); - let notificationBox = tabbrowser.getNotificationBox(browser); - - // Flag so we don't send the message twice, since if the user clicks - // "open with different viewer" both the button callback and - // eventCallback will be called. - let messageSent = false; - function sendMessage(download) { - let mm = browser.messageManager; - mm.sendAsyncMessage('PDFJS:Child:fallbackDownload', - { download: download }); - } - let buttons = [{ - label: data.label, - accessKey: data.accessKey, - callback: function() { - messageSent = true; - sendMessage(true); - } - }]; - notificationBox.appendNotification(data.message, 'pdfjs-fallback', null, - notificationBox.PRIORITY_INFO_LOW, - buttons, - function eventsCallback(eventType) { - // Currently there is only one event "removed" but if there are any other - // added in the future we still only care about removed at the moment. - if (eventType !== 'removed') { - return; - } - // Don't send a response again if we already responded when the button was - // clicked. - if (messageSent) { - return; - } - sendMessage(false); - }); - } -}; - - |