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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 binding for the app API.
var GetAvailability = requireNative('v8_context').GetAvailability;
if (!GetAvailability('app').is_available) {
exports.binding = {};
exports.onInstallStateResponse = function(){};
return;
}
var appNatives = requireNative('app');
var process = requireNative('process');
var extensionId = process.GetExtensionId();
var logActivity = requireNative('activityLogger');
function wrapForLogging(fun) {
if (!extensionId)
return fun; // nothing interesting to log without an extension
return function() {
// TODO(ataly): We need to make sure we use the right prototype for
// fun.apply. Array slice can either be rewritten or similarly defined.
logActivity.LogAPICall(extensionId, "app." + fun.name,
$Array.slice(arguments));
return $Function.apply(fun, this, arguments);
};
}
// This becomes chrome.app
var app = {
getIsInstalled: wrapForLogging(appNatives.GetIsInstalled),
getDetails: wrapForLogging(appNatives.GetDetails),
runningState: wrapForLogging(appNatives.GetRunningState)
};
// Tricky; "getIsInstalled" is actually exposed as the getter "isInstalled",
// but we don't have a way to express this in the schema JSON (nor is it
// worth it for this one special case).
//
// So, define it manually, and let the getIsInstalled function act as its
// documentation.
app.__defineGetter__('isInstalled', wrapForLogging(appNatives.GetIsInstalled));
// Called by app_bindings.cc.
function onInstallStateResponse(state, callbackId) {
var callback = callbacks[callbackId];
delete callbacks[callbackId];
if (typeof(callback) == 'function') {
try {
callback(state);
} catch (e) {
console.error('Exception in chrome.app.installState response handler: ' +
e.stack);
}
}
}
// TODO(kalman): move this stuff to its own custom bindings.
var callbacks = {};
var nextCallbackId = 1;
app.installState = function getInstallState(callback) {
var callbackId = nextCallbackId++;
callbacks[callbackId] = callback;
appNatives.GetInstallState(callbackId);
};
if (extensionId)
app.installState = wrapForLogging(app.installState);
exports.binding = app;
exports.onInstallStateResponse = onInstallStateResponse;
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