1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Custom binding for the app_window API.
7 var appWindowNatives = requireNative('app_window_natives');
8 var runtimeNatives = requireNative('runtime');
9 var Binding = require('binding').Binding;
10 var Event = require('event_bindings').Event;
11 var forEach = require('utils').forEach;
12 var renderFrameObserverNatives = requireNative('renderFrameObserverNatives');
14 var appWindowData = null;
15 var currentAppWindow = null;
16 var currentWindowInternal = null;
18 var kSetBoundsFunction = 'setBounds';
19 var kSetSizeConstraintsFunction = 'setSizeConstraints';
21 // Bounds class definition.
22 var Bounds = function(boundsKey) {
23 privates(this).boundsKey_ = boundsKey;
25 Object.defineProperty(Bounds.prototype, 'left', {
27 return appWindowData[privates(this).boundsKey_].left;
30 this.setPosition(left, null);
34 Object.defineProperty(Bounds.prototype, 'top', {
36 return appWindowData[privates(this).boundsKey_].top;
39 this.setPosition(null, top);
43 Object.defineProperty(Bounds.prototype, 'width', {
45 return appWindowData[privates(this).boundsKey_].width;
47 set: function(width) {
48 this.setSize(width, null);
52 Object.defineProperty(Bounds.prototype, 'height', {
54 return appWindowData[privates(this).boundsKey_].height;
56 set: function(height) {
57 this.setSize(null, height);
61 Object.defineProperty(Bounds.prototype, 'minWidth', {
63 return appWindowData[privates(this).boundsKey_].minWidth;
65 set: function(minWidth) {
66 updateSizeConstraints(privates(this).boundsKey_, { minWidth: minWidth });
70 Object.defineProperty(Bounds.prototype, 'maxWidth', {
72 return appWindowData[privates(this).boundsKey_].maxWidth;
74 set: function(maxWidth) {
75 updateSizeConstraints(privates(this).boundsKey_, { maxWidth: maxWidth });
79 Object.defineProperty(Bounds.prototype, 'minHeight', {
81 return appWindowData[privates(this).boundsKey_].minHeight;
83 set: function(minHeight) {
84 updateSizeConstraints(privates(this).boundsKey_, { minHeight: minHeight });
88 Object.defineProperty(Bounds.prototype, 'maxHeight', {
90 return appWindowData[privates(this).boundsKey_].maxHeight;
92 set: function(maxHeight) {
93 updateSizeConstraints(privates(this).boundsKey_, { maxHeight: maxHeight });
97 Bounds.prototype.setPosition = function(left, top) {
98 updateBounds(privates(this).boundsKey_, { left: left, top: top });
100 Bounds.prototype.setSize = function(width, height) {
101 updateBounds(privates(this).boundsKey_, { width: width, height: height });
103 Bounds.prototype.setMinimumSize = function(minWidth, minHeight) {
104 updateSizeConstraints(privates(this).boundsKey_,
105 { minWidth: minWidth, minHeight: minHeight });
107 Bounds.prototype.setMaximumSize = function(maxWidth, maxHeight) {
108 updateSizeConstraints(privates(this).boundsKey_,
109 { maxWidth: maxWidth, maxHeight: maxHeight });
112 var appWindow = Binding.create('app.window');
113 appWindow.registerCustomHook(function(bindingsAPI) {
114 var apiFunctions = bindingsAPI.apiFunctions;
116 apiFunctions.setCustomCallback('create',
117 function(name, request, callback, windowParams) {
120 // When window creation fails, |windowParams| will be undefined.
121 if (windowParams && windowParams.frameId) {
122 view = appWindowNatives.GetFrame(
123 windowParams.frameId, windowParams.injectTitlebar);
127 // No route to created window. If given a callback, trigger it with an
134 if (windowParams.existingWindow) {
135 // Not creating a new window, but activating an existing one, so trigger
136 // callback with existing window and don't do anything else.
138 callback(view.chrome.app.window.current());
142 // Initialize appWindowData in the newly created JS context
143 if (view.chrome.app) {
144 view.chrome.app.window.initializeAppWindow(windowParams);
146 var sandbox_window_message = 'Creating sandboxed window, it doesn\'t ' +
147 'have access to the chrome.app API.';
149 sandbox_window_message = sandbox_window_message +
150 ' The chrome.app.window.create callback will be called, but ' +
151 'there will be no object provided for the sandboxed window.';
153 console.warn(sandbox_window_message);
157 if (!view || !view.chrome.app /* sandboxed window */) {
163 renderFrameObserverNatives.OnDocumentElementCreated(
164 windowParams.frameId,
167 callback(view.chrome.app.window.current());
178 apiFunctions.setHandleRequest('current', function() {
179 if (!currentAppWindow) {
180 console.error('The JavaScript context calling ' +
181 'chrome.app.window.current() has no associated AppWindow.');
184 return currentAppWindow;
187 apiFunctions.setHandleRequest('getAll', function() {
188 var views = runtimeNatives.GetExtensionViews(-1, 'APP_WINDOW');
189 return $Array.map(views, function(win) {
190 return win.chrome.app.window.current();
194 apiFunctions.setHandleRequest('get', function(id) {
195 var windows = $Array.filter(chrome.app.window.getAll(), function(win) {
198 return windows.length > 0 ? windows[0] : null;
201 apiFunctions.setHandleRequest('canSetVisibleOnAllWorkspaces', function() {
202 return /Mac/.test(navigator.platform) || /Linux/.test(navigator.userAgent);
205 // This is an internal function, but needs to be bound into a closure
206 // so the correct JS context is used for global variables such as
207 // currentWindowInternal, appWindowData, etc.
208 apiFunctions.setHandleRequest('initializeAppWindow', function(params) {
209 currentWindowInternal =
210 Binding.create('app.currentWindowInternal').generate();
211 var AppWindow = function() {
212 this.innerBounds = new Bounds('innerBounds');
213 this.outerBounds = new Bounds('outerBounds');
215 forEach(currentWindowInternal, function(key, value) {
216 // Do not add internal functions that should not appear in the AppWindow
217 // interface. They are called by Bounds mutators.
218 if (key !== kSetBoundsFunction && key !== kSetSizeConstraintsFunction)
219 AppWindow.prototype[key] = value;
221 AppWindow.prototype.moveTo = $Function.bind(window.moveTo, window);
222 AppWindow.prototype.resizeTo = $Function.bind(window.resizeTo, window);
223 AppWindow.prototype.contentWindow = window;
224 AppWindow.prototype.onClosed = new Event();
225 AppWindow.prototype.onWindowFirstShownForTests = new Event();
226 AppWindow.prototype.close = function() {
227 this.contentWindow.close();
229 AppWindow.prototype.getBounds = function() {
230 // This is to maintain backcompatibility with a bug on Windows and
231 // ChromeOS, which returns the position of the window but the size of
233 var innerBounds = appWindowData.innerBounds;
234 var outerBounds = appWindowData.outerBounds;
235 return { left: outerBounds.left, top: outerBounds.top,
236 width: innerBounds.width, height: innerBounds.height };
238 AppWindow.prototype.setBounds = function(bounds) {
239 updateBounds('bounds', bounds);
241 AppWindow.prototype.isFullscreen = function() {
242 return appWindowData.fullscreen;
244 AppWindow.prototype.isMinimized = function() {
245 return appWindowData.minimized;
247 AppWindow.prototype.isMaximized = function() {
248 return appWindowData.maximized;
250 AppWindow.prototype.isAlwaysOnTop = function() {
251 return appWindowData.alwaysOnTop;
253 AppWindow.prototype.alphaEnabled = function() {
254 return appWindowData.alphaEnabled;
256 AppWindow.prototype.handleWindowFirstShownForTests = function(callback) {
257 // This allows test apps to get have their callback run even if they
258 // call this after the first show has happened.
259 if (this.firstShowHasHappened) {
263 this.onWindowFirstShownForTests.addListener(callback);
266 Object.defineProperty(AppWindow.prototype, 'id', {get: function() {
267 return appWindowData.id;
270 // These properties are for testing.
271 Object.defineProperty(
272 AppWindow.prototype, 'hasFrameColor', {get: function() {
273 return appWindowData.hasFrameColor;
276 Object.defineProperty(AppWindow.prototype, 'activeFrameColor',
278 return appWindowData.activeFrameColor;
281 Object.defineProperty(AppWindow.prototype, 'inactiveFrameColor',
283 return appWindowData.inactiveFrameColor;
289 left: params.innerBounds.left,
290 top: params.innerBounds.top,
291 width: params.innerBounds.width,
292 height: params.innerBounds.height,
294 minWidth: params.innerBounds.minWidth,
295 minHeight: params.innerBounds.minHeight,
296 maxWidth: params.innerBounds.maxWidth,
297 maxHeight: params.innerBounds.maxHeight
300 left: params.outerBounds.left,
301 top: params.outerBounds.top,
302 width: params.outerBounds.width,
303 height: params.outerBounds.height,
305 minWidth: params.outerBounds.minWidth,
306 minHeight: params.outerBounds.minHeight,
307 maxWidth: params.outerBounds.maxWidth,
308 maxHeight: params.outerBounds.maxHeight
310 fullscreen: params.fullscreen,
311 minimized: params.minimized,
312 maximized: params.maximized,
313 alwaysOnTop: params.alwaysOnTop,
314 hasFrameColor: params.hasFrameColor,
315 activeFrameColor: params.activeFrameColor,
316 inactiveFrameColor: params.inactiveFrameColor,
317 alphaEnabled: params.alphaEnabled
319 currentAppWindow = new AppWindow;
323 function boundsEqual(bounds1, bounds2) {
324 if (!bounds1 || !bounds2)
326 return (bounds1.left == bounds2.left && bounds1.top == bounds2.top &&
327 bounds1.width == bounds2.width && bounds1.height == bounds2.height);
330 function dispatchEventIfExists(target, name) {
331 // Sometimes apps like to put their own properties on the window which
332 // break our assumptions.
333 var event = target[name];
334 if (event && (typeof event.dispatch == 'function'))
337 console.warn('Could not dispatch ' + name + ', event has been clobbered');
340 function updateAppWindowProperties(update) {
344 var oldData = appWindowData;
345 update.id = oldData.id;
346 appWindowData = update;
348 var currentWindow = currentAppWindow;
350 if (!boundsEqual(oldData.innerBounds, update.innerBounds))
351 dispatchEventIfExists(currentWindow, "onBoundsChanged");
353 if (!oldData.fullscreen && update.fullscreen)
354 dispatchEventIfExists(currentWindow, "onFullscreened");
355 if (!oldData.minimized && update.minimized)
356 dispatchEventIfExists(currentWindow, "onMinimized");
357 if (!oldData.maximized && update.maximized)
358 dispatchEventIfExists(currentWindow, "onMaximized");
360 if ((oldData.fullscreen && !update.fullscreen) ||
361 (oldData.minimized && !update.minimized) ||
362 (oldData.maximized && !update.maximized))
363 dispatchEventIfExists(currentWindow, "onRestored");
365 if (oldData.alphaEnabled !== update.alphaEnabled)
366 dispatchEventIfExists(currentWindow, "onAlphaEnabledChanged");
369 function onAppWindowShownForTests() {
370 if (!currentAppWindow)
373 if (!currentAppWindow.firstShowHasHappened)
374 dispatchEventIfExists(currentAppWindow, "onWindowFirstShownForTests");
376 currentAppWindow.firstShowHasHappened = true;
379 function onAppWindowClosed() {
380 if (!currentAppWindow)
382 dispatchEventIfExists(currentAppWindow, "onClosed");
385 function updateBounds(boundsType, bounds) {
386 if (!currentWindowInternal)
389 currentWindowInternal.setBounds(boundsType, bounds);
392 function updateSizeConstraints(boundsType, constraints) {
393 if (!currentWindowInternal)
396 forEach(constraints, function(key, value) {
397 // From the perspective of the API, null is used to reset constraints.
398 // We need to convert this to 0 because a value of null is interpreted
399 // the same as undefined in the browser and leaves the constraint unchanged.
401 constraints[key] = 0;
404 currentWindowInternal.setSizeConstraints(boundsType, constraints);
407 exports.binding = appWindow.generate();
408 exports.onAppWindowClosed = onAppWindowClosed;
409 exports.updateAppWindowProperties = updateAppWindowProperties;
410 exports.appWindowShownForTests = onAppWindowShownForTests;