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102 lines
3.0 KiB
JavaScript
102 lines
3.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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this.EXPORTED_SYMBOLS = ['Keyboard'];
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const Cu = Components.utils;
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const kFormsFrameScript = 'chrome://browser/content/forms.js';
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Cu.import('resource://gre/modules/Services.jsm');
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyServiceGetter(this, "ppmm",
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"@mozilla.org/parentprocessmessagemanager;1", "nsIMessageBroadcaster");
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let Keyboard = {
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_messageManager: null,
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_messageNames: [
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'SetValue', 'RemoveFocus', 'SetSelectedOption', 'SetSelectedOptions'
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],
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get messageManager() {
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if (this._messageManager && !Cu.isDeadWrapper(this._messageManager))
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return this._messageManager;
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throw Error('no message manager set');
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},
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set messageManager(mm) {
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this._messageManager = mm;
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},
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init: function keyboardInit() {
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Services.obs.addObserver(this, 'in-process-browser-or-app-frame-shown', false);
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Services.obs.addObserver(this, 'remote-browser-frame-shown', false);
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for (let name of this._messageNames)
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ppmm.addMessageListener('Keyboard:' + name, this);
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},
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observe: function keyboardObserve(subject, topic, data) {
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let frameLoader = subject.QueryInterface(Ci.nsIFrameLoader);
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let mm = frameLoader.messageManager;
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mm.addMessageListener('Forms:Input', this);
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try {
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mm.loadFrameScript(kFormsFrameScript, true);
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} catch (e) {
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dump('Error loading ' + kFormsFrameScript + ' as frame script: ' + e + '\n');
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}
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},
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receiveMessage: function keyboardReceiveMessage(msg) {
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switch (msg.name) {
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case 'Forms:Input':
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this.handleFormsInput(msg);
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break;
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case 'Keyboard:SetValue':
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this.setValue(msg);
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break;
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case 'Keyboard:RemoveFocus':
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this.removeFocus();
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break;
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case 'Keyboard:SetSelectedOption':
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this.setSelectedOption(msg);
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break;
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case 'Keyboard:SetSelectedOptions':
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this.setSelectedOption(msg);
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break;
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}
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},
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handleFormsInput: function keyboardHandleFormsInput(msg) {
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this.messageManager = msg.target.QueryInterface(Ci.nsIFrameLoaderOwner)
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.frameLoader.messageManager;
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ppmm.broadcastAsyncMessage('Keyboard:FocusChange', msg.data);
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},
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setSelectedOption: function keyboardSetSelectedOption(msg) {
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this.messageManager.sendAsyncMessage('Forms:Select:Choice', msg.data);
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},
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setSelectedOptions: function keyboardSetSelectedOptions(msg) {
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this.messageManager.sendAsyncMessage('Forms:Select:Choice', msg.data);
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},
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setValue: function keyboardSetValue(msg) {
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this.messageManager.sendAsyncMessage('Forms:Input:Value', msg.data);
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},
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removeFocus: function keyboardRemoveFocus() {
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this.messageManager.sendAsyncMessage('Forms:Select:Blur', {});
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}
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};
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Keyboard.init();
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