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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.
(function() {
native function GetChromeHidden();
native function GetNextContextMenuId();
var chromeHidden = GetChromeHidden();
chromeHidden.registerCustomHook('contextMenus', function(bindingsAPI) {
var apiFunctions = bindingsAPI.apiFunctions;
var sendRequest = bindingsAPI.sendRequest;
chromeHidden.contextMenus = {};
chromeHidden.contextMenus.handlers = {};
var eventName = 'contextMenus';
chromeHidden.contextMenus.event = new chrome.Event(eventName);
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.handlers[id];
if (onclick) {
onclick.apply(null, arguments);
}
});
};
apiFunctions.setHandleRequest('create', function() {
var args = arguments;
var id = GetNextContextMenuId();
args[0].generatedId = id;
sendRequest(this.name,
args,
this.definition.parameters,
{customCallback: this.customCallback});
return id;
});
apiFunctions.setCustomCallback('create', function(name, request, response) {
if (chrome.extension.lastError) {
return;
}
var id = request.args[0].generatedId;
// 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.handlers[id] = onclick;
}
});
apiFunctions.setCustomCallback('remove', function(name, request, response) {
if (chrome.extension.lastError) {
return;
}
var id = request.args[0];
delete chromeHidden.contextMenus.handlers[id];
});
apiFunctions.setCustomCallback('update', function(name, request, response) {
if (chrome.extension.lastError) {
return;
}
var id = request.args[0];
if (request.args[1].onclick) {
chromeHidden.contextMenus.handlers[id] = request.args[1].onclick;
}
});
apiFunctions.setCustomCallback('removeAll',
function(name, request, response) {
if (chrome.extension.lastError) {
return;
}
chromeHidden.contextMenus.handlers = {};
});
});
})();
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