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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_window API.
var appWindowNatives = requireNative('app_window_natives');
var runtimeNatives = requireNative('runtime');
var Binding = require('binding').Binding;
var Event = require('event_bindings').Event;
var forEach = require('utils').forEach;
var renderViewObserverNatives = requireNative('renderViewObserverNatives');
var sendRequest = require('sendRequest').sendRequest;
var appWindowData = null;
var currentAppWindow = null;
var appWindow = Binding.create('app.window');
appWindow.registerCustomHook(function(bindingsAPI) {
var apiFunctions = bindingsAPI.apiFunctions;
apiFunctions.setCustomCallback('create',
function(name, request, windowParams) {
var view = null;
if (windowParams.viewId) {
view = appWindowNatives.GetView(
windowParams.viewId, windowParams.injectTitlebar);
}
if (!view) {
// No route to created window. If given a callback, trigger it with an
// undefined object.
if (request.callback) {
request.callback();
delete request.callback;
}
return;
}
if (windowParams.existingWindow) {
// Not creating a new window, but activating an existing one, so trigger
// callback with existing window and don't do anything else.
if (request.callback) {
request.callback(view.chrome.app.window.current());
delete request.callback;
}
return;
}
// Initialize appWindowData in the newly created JS context
view.chrome.app.window.initializeAppWindow(windowParams);
var callback = request.callback;
if (callback) {
delete request.callback;
if (!view) {
callback(undefined);
return;
}
var willCallback =
renderViewObserverNatives.OnDocumentElementCreated(
windowParams.viewId,
function(success) {
if (success) {
callback(view.chrome.app.window.current());
} else {
callback(undefined);
}
});
if (!willCallback) {
callback(undefined);
}
}
});
apiFunctions.setHandleRequest('current', function() {
if (!currentAppWindow) {
console.error('The JavaScript context calling ' +
'chrome.app.window.current() has no associated AppWindow.');
return null;
}
return currentAppWindow;
});
apiFunctions.setHandleRequest('getAll', function() {
var views = runtimeNatives.GetExtensionViews(-1, 'SHELL');
return $Array.map(views, function(win) {
return win.chrome.app.window.current();
});
});
apiFunctions.setHandleRequest('get', function(id) {
var windows = $Array.filter(chrome.app.window.getAll(), function(win) {
return win.id == id;
});
return windows.length > 0 ? windows[0] : null;
});
// This is an internal function, but needs to be bound with setHandleRequest
// because it is called from a different JS context.
apiFunctions.setHandleRequest('initializeAppWindow', function(params) {
var currentWindowInternal =
Binding.create('app.currentWindowInternal').generate();
var AppWindow = function() {};
forEach(currentWindowInternal, function(key, value) {
AppWindow.prototype[key] = value;
});
AppWindow.prototype.moveTo = $Function.bind(window.moveTo, window);
AppWindow.prototype.resizeTo = $Function.bind(window.resizeTo, window);
AppWindow.prototype.contentWindow = window;
AppWindow.prototype.onClosed = new Event();
AppWindow.prototype.close = function() {
this.contentWindow.close();
};
AppWindow.prototype.getBounds = function() {
var bounds = appWindowData.bounds;
return { left: bounds.left, top: bounds.top,
width: bounds.width, height: bounds.height };
};
AppWindow.prototype.getMinWidth = function() {
return appWindowData.minWidth;
};
AppWindow.prototype.getMinHeight = function() {
return appWindowData.minHeight;
};
AppWindow.prototype.getMaxWidth = function() {
return appWindowData.maxWidth;
};
AppWindow.prototype.getMaxHeight = function() {
return appWindowData.maxHeight;
};
AppWindow.prototype.isFullscreen = function() {
return appWindowData.fullscreen;
};
AppWindow.prototype.isMinimized = function() {
return appWindowData.minimized;
};
AppWindow.prototype.isMaximized = function() {
return appWindowData.maximized;
};
AppWindow.prototype.isAlwaysOnTop = function() {
return appWindowData.alwaysOnTop;
};
Object.defineProperty(AppWindow.prototype, 'id', {get: function() {
return appWindowData.id;
}});
appWindowData = {
id: params.id || '',
bounds: { left: params.bounds.left, top: params.bounds.top,
width: params.bounds.width, height: params.bounds.height },
minWidth: params.minWidth,
minHeight: params.minHeight,
maxWidth: params.maxWidth,
maxHeight: params.maxHeight,
fullscreen: params.fullscreen,
minimized: params.minimized,
maximized: params.maximized,
alwaysOnTop: params.alwaysOnTop
};
currentAppWindow = new AppWindow;
});
});
function boundsEqual(bounds1, bounds2) {
if (!bounds1 || !bounds2)
return false;
return (bounds1.left == bounds2.left && bounds1.top == bounds2.top &&
bounds1.width == bounds2.width && bounds1.height == bounds2.height);
}
function dispatchEventIfExists(target, name) {
// Sometimes apps like to put their own properties on the window which
// break our assumptions.
var event = target[name];
if (event && (typeof event.dispatch == 'function'))
event.dispatch();
else
console.warn('Could not dispatch ' + name + ', event has been clobbered');
}
function updateAppWindowProperties(update) {
if (!appWindowData)
return;
var oldData = appWindowData;
update.id = oldData.id;
appWindowData = update;
var currentWindow = currentAppWindow;
if (!boundsEqual(oldData.bounds, update.bounds))
dispatchEventIfExists(currentWindow, "onBoundsChanged");
if (!oldData.fullscreen && update.fullscreen)
dispatchEventIfExists(currentWindow, "onFullscreened");
if (!oldData.minimized && update.minimized)
dispatchEventIfExists(currentWindow, "onMinimized");
if (!oldData.maximized && update.maximized)
dispatchEventIfExists(currentWindow, "onMaximized");
if ((oldData.fullscreen && !update.fullscreen) ||
(oldData.minimized && !update.minimized) ||
(oldData.maximized && !update.maximized))
dispatchEventIfExists(currentWindow, "onRestored");
};
function onAppWindowClosed() {
if (!currentAppWindow)
return;
dispatchEventIfExists(currentAppWindow, "onClosed");
}
exports.binding = appWindow.generate();
exports.onAppWindowClosed = onAppWindowClosed;
exports.updateAppWindowProperties = updateAppWindowProperties;
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