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Unnamed File 000024.txt
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2013-04-03
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Custom bindings for the contextMenus API.
var contextMenus = requireNative('context_menus');
var GetNextContextMenuId = contextMenus.GetNextContextMenuId;
var sendRequest = require('sendRequest').sendRequest;
var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
chromeHidden.registerCustomHook('contextMenus', function(bindingsAPI) {
var apiFunctions = bindingsAPI.apiFunctions;
chromeHidden.contextMenus = {};
chromeHidden.contextMenus.generatedIdHandlers = {};
chromeHidden.contextMenus.stringIdHandlers = {};
var eventName = 'contextMenus';
chromeHidden.contextMenus.event = new chrome.Event(eventName);
chromeHidden.contextMenus.getIdFromCreateProperties = function(prop) {
if (typeof(prop.id) !== 'undefined')
return prop.id;
return prop.generatedId;
};
chromeHidden.contextMenus.handlersForId = function(id) {
if (typeof(id) === 'number')
return chromeHidden.contextMenus.generatedIdHandlers;
return chromeHidden.contextMenus.stringIdHandlers;
};
chromeHidden.contextMenus.ensureListenerSetup = function() {
if (chromeHidden.contextMenus.listening) {
return;
}
chromeHidden.contextMenus.listening = true;
chromeHidden.contextMenus.event.addListener(function() {
// An extension context menu item has been clicked on - fire the onclick
// if there is one.
var id = arguments[0].menuItemId;
var onclick = chromeHidden.contextMenus.handlersForId(id)[id];
if (onclick) {
onclick.apply(null, arguments);
}
});
};
apiFunctions.setHandleRequest('create', function() {
var args = arguments;
var id = GetNextContextMenuId();
args[0].generatedId = id;
var optArgs = {
customCallback: this.customCallback,
};
sendRequest(this.name, args, this.definition.parameters, optArgs);
return chromeHidden.contextMenus.getIdFromCreateProperties(args[0]);
});
apiFunctions.setCustomCallback('create', function(name, request, response) {
if (chrome.runtime.lastError) {
return;
}
var id = chromeHidden.contextMenus.getIdFromCreateProperties(
request.args[0]);
// Set up the onclick handler if we were passed one in the request.
var onclick = request.args.length ? request.args[0].onclick : null;
if (onclick) {
chromeHidden.contextMenus.ensureListenerSetup();
chromeHidden.contextMenus.handlersForId(id)[id] = onclick;
}
});
apiFunctions.setCustomCallback('remove', function(name, request, response) {
if (chrome.runtime.lastError) {
return;
}
var id = request.args[0];
delete chromeHidden.contextMenus.handlersForId(id)[id];
});
apiFunctions.setCustomCallback('update', function(name, request, response) {
if (chrome.runtime.lastError) {
return;
}
var id = request.args[0];
if (request.args[1].onclick) {
chromeHidden.contextMenus.handlersForId(id)[id] = request.args[1].onclick;
}
});
apiFunctions.setCustomCallback('removeAll',
function(name, request, response) {
if (chrome.runtime.lastError) {
return;
}
chromeHidden.contextMenus.generatedIdHandlers = {};
chromeHidden.contextMenus.stringIdHandlers = {};
});
});