apps/app_window.cc

   1 // Copyright 2014 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.
   4
   5 #include "apps/app_window.h"
   6
   7 #include <algorithm>
   8
   9 #include "apps/app_window_geometry_cache.h"
  10 #include "apps/app_window_registry.h"
  11 #include "apps/apps_client.h"
  12 #include "apps/size_constraints.h"
  13 #include "apps/ui/native_app_window.h"
  14 #include "apps/ui/web_contents_sizer.h"
  15 #include "base/command_line.h"
  16 #include "base/strings/string_util.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "base/values.h"
  19 #include "chrome/browser/chrome_notification_types.h"
  20 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
  21 #include "chrome/browser/extensions/suggest_permission_util.h"
  22 #include "chrome/common/chrome_switches.h"
  23 #include "components/web_modal/web_contents_modal_dialog_manager.h"
  24 #include "content/public/browser/browser_context.h"
  25 #include "content/public/browser/invalidate_type.h"
  26 #include "content/public/browser/navigation_entry.h"
  27 #include "content/public/browser/notification_details.h"
  28 #include "content/public/browser/notification_service.h"
  29 #include "content/public/browser/notification_source.h"
  30 #include "content/public/browser/notification_types.h"
  31 #include "content/public/browser/render_view_host.h"
  32 #include "content/public/browser/resource_dispatcher_host.h"
  33 #include "content/public/browser/web_contents.h"
  34 #include "content/public/common/content_switches.h"
  35 #include "content/public/common/media_stream_request.h"
  36 #include "extensions/browser/extension_registry.h"
  37 #include "extensions/browser/extension_system.h"
  38 #include "extensions/browser/extensions_browser_client.h"
  39 #include "extensions/browser/process_manager.h"
  40 #include "extensions/browser/view_type_utils.h"
  41 #include "extensions/common/extension.h"
  42 #include "extensions/common/extension_messages.h"
  43 #include "extensions/common/manifest_handlers/icons_handler.h"
  44 #include "extensions/common/permissions/permissions_data.h"
  45 #include "grit/theme_resources.h"
  46 #include "third_party/skia/include/core/SkRegion.h"
  47 #include "ui/base/resource/resource_bundle.h"
  48 #include "ui/gfx/screen.h"
  49
  50 #if !defined(OS_MACOSX)
  51 #include "apps/pref_names.h"
  52 #include "base/prefs/pref_service.h"
  53 #endif
  54
  55 using content::BrowserContext;
  56 using content::ConsoleMessageLevel;
  57 using content::WebContents;
  58 using extensions::APIPermission;
  59 using web_modal::WebContentsModalDialogHost;
  60 using web_modal::WebContentsModalDialogManager;
  61
  62 namespace apps {
  63
  64 namespace {
  65
  66 const int kDefaultWidth = 512;
  67 const int kDefaultHeight = 384;
  68
  69 bool IsFullscreen(int fullscreen_types) {
  70   return fullscreen_types != apps::AppWindow::FULLSCREEN_TYPE_NONE;
  71 }
  72
  73 void SetConstraintProperty(const std::string& name,
  74                            int value,
  75                            base::DictionaryValue* bounds_properties) {
  76   if (value != SizeConstraints::kUnboundedSize)
  77     bounds_properties->SetInteger(name, value);
  78   else
  79     bounds_properties->Set(name, base::Value::CreateNullValue());
  80 }
  81
  82 void SetBoundsProperties(const gfx::Rect& bounds,
  83                          const gfx::Size& min_size,
  84                          const gfx::Size& max_size,
  85                          const std::string& bounds_name,
  86                          base::DictionaryValue* window_properties) {
  87   scoped_ptr<base::DictionaryValue> bounds_properties(
  88       new base::DictionaryValue());
  89
  90   bounds_properties->SetInteger("left", bounds.x());
  91   bounds_properties->SetInteger("top", bounds.y());
  92   bounds_properties->SetInteger("width", bounds.width());
  93   bounds_properties->SetInteger("height", bounds.height());
  94
  95   SetConstraintProperty("minWidth", min_size.width(), bounds_properties.get());
  96   SetConstraintProperty(
  97       "minHeight", min_size.height(), bounds_properties.get());
  98   SetConstraintProperty("maxWidth", max_size.width(), bounds_properties.get());
  99   SetConstraintProperty(
 100       "maxHeight", max_size.height(), bounds_properties.get());
 101
 102   window_properties->Set(bounds_name, bounds_properties.release());
 103 }
 104
 105 // Combines the constraints of the content and window, and returns constraints
 106 // for the window.
 107 gfx::Size GetCombinedWindowConstraints(const gfx::Size& window_constraints,
 108                                        const gfx::Size& content_constraints,
 109                                        const gfx::Insets& frame_insets) {
 110   gfx::Size combined_constraints(window_constraints);
 111   if (content_constraints.width() > 0) {
 112     combined_constraints.set_width(
 113         content_constraints.width() + frame_insets.width());
 114   }
 115   if (content_constraints.height() > 0) {
 116     combined_constraints.set_height(
 117         content_constraints.height() + frame_insets.height());
 118   }
 119   return combined_constraints;
 120 }
 121
 122 // Combines the constraints of the content and window, and returns constraints
 123 // for the content.
 124 gfx::Size GetCombinedContentConstraints(const gfx::Size& window_constraints,
 125                                         const gfx::Size& content_constraints,
 126                                         const gfx::Insets& frame_insets) {
 127   gfx::Size combined_constraints(content_constraints);
 128   if (window_constraints.width() > 0) {
 129     combined_constraints.set_width(
 130         std::max(0, window_constraints.width() - frame_insets.width()));
 131   }
 132   if (window_constraints.height() > 0) {
 133     combined_constraints.set_height(
 134         std::max(0, window_constraints.height() - frame_insets.height()));
 135   }
 136   return combined_constraints;
 137 }
 138
 139 }  // namespace
 140
 141 // AppWindow::BoundsSpecification
 142
 143 const int AppWindow::BoundsSpecification::kUnspecifiedPosition = INT_MIN;
 144
 145 AppWindow::BoundsSpecification::BoundsSpecification()
 146     : bounds(kUnspecifiedPosition, kUnspecifiedPosition, 0, 0) {}
 147
 148 AppWindow::BoundsSpecification::~BoundsSpecification() {}
 149
 150 void AppWindow::BoundsSpecification::ResetBounds() {
 151   bounds.SetRect(kUnspecifiedPosition, kUnspecifiedPosition, 0, 0);
 152 }
 153
 154 // AppWindow::CreateParams
 155
 156 AppWindow::CreateParams::CreateParams()
 157     : window_type(AppWindow::WINDOW_TYPE_DEFAULT),
 158       frame(AppWindow::FRAME_CHROME),
 159       has_frame_color(false),
 160       active_frame_color(SK_ColorBLACK),
 161       inactive_frame_color(SK_ColorBLACK),
 162       transparent_background(false),
 163       creator_process_id(0),
 164       state(ui::SHOW_STATE_DEFAULT),
 165       hidden(false),
 166       resizable(true),
 167       focused(true),
 168       always_on_top(false) {}
 169
 170 AppWindow::CreateParams::~CreateParams() {}
 171
 172 gfx::Rect AppWindow::CreateParams::GetInitialWindowBounds(
 173     const gfx::Insets& frame_insets) const {
 174   // Combine into a single window bounds.
 175   gfx::Rect combined_bounds(window_spec.bounds);
 176   if (content_spec.bounds.x() != BoundsSpecification::kUnspecifiedPosition)
 177     combined_bounds.set_x(content_spec.bounds.x() - frame_insets.left());
 178   if (content_spec.bounds.y() != BoundsSpecification::kUnspecifiedPosition)
 179     combined_bounds.set_y(content_spec.bounds.y() - frame_insets.top());
 180   if (content_spec.bounds.width() > 0) {
 181     combined_bounds.set_width(
 182         content_spec.bounds.width() + frame_insets.width());
 183   }
 184   if (content_spec.bounds.height() > 0) {
 185     combined_bounds.set_height(
 186         content_spec.bounds.height() + frame_insets.height());
 187   }
 188
 189   // Constrain the bounds.
 190   SizeConstraints constraints(
 191       GetCombinedWindowConstraints(
 192           window_spec.minimum_size, content_spec.minimum_size, frame_insets),
 193       GetCombinedWindowConstraints(
 194           window_spec.maximum_size, content_spec.maximum_size, frame_insets));
 195   combined_bounds.set_size(constraints.ClampSize(combined_bounds.size()));
 196
 197   return combined_bounds;
 198 }
 199
 200 gfx::Size AppWindow::CreateParams::GetContentMinimumSize(
 201     const gfx::Insets& frame_insets) const {
 202   return GetCombinedContentConstraints(window_spec.minimum_size,
 203                                        content_spec.minimum_size,
 204                                        frame_insets);
 205 }
 206
 207 gfx::Size AppWindow::CreateParams::GetContentMaximumSize(
 208     const gfx::Insets& frame_insets) const {
 209   return GetCombinedContentConstraints(window_spec.maximum_size,
 210                                        content_spec.maximum_size,
 211                                        frame_insets);
 212 }
 213
 214 gfx::Size AppWindow::CreateParams::GetWindowMinimumSize(
 215     const gfx::Insets& frame_insets) const {
 216   return GetCombinedWindowConstraints(window_spec.minimum_size,
 217                                       content_spec.minimum_size,
 218                                       frame_insets);
 219 }
 220
 221 gfx::Size AppWindow::CreateParams::GetWindowMaximumSize(
 222     const gfx::Insets& frame_insets) const {
 223   return GetCombinedWindowConstraints(window_spec.maximum_size,
 224                                       content_spec.maximum_size,
 225                                       frame_insets);
 226 }
 227
 228 // AppWindow::Delegate
 229
 230 AppWindow::Delegate::~Delegate() {}
 231
 232 // AppWindow
 233
 234 AppWindow::AppWindow(BrowserContext* context,
 235                      Delegate* delegate,
 236                      const extensions::Extension* extension)
 237     : browser_context_(context),
 238       extension_id_(extension->id()),
 239       window_type_(WINDOW_TYPE_DEFAULT),
 240       delegate_(delegate),
 241       image_loader_ptr_factory_(this),
 242       fullscreen_types_(FULLSCREEN_TYPE_NONE),
 243       show_on_first_paint_(false),
 244       first_paint_complete_(false),
 245       has_been_shown_(false),
 246       can_send_events_(false),
 247       is_hidden_(false),
 248       cached_always_on_top_(false) {
 249   extensions::ExtensionsBrowserClient* client =
 250       extensions::ExtensionsBrowserClient::Get();
 251   CHECK(!client->IsGuestSession(context) || context->IsOffTheRecord())
 252       << "Only off the record window may be opened in the guest mode.";
 253 }
 254
 255 void AppWindow::Init(const GURL& url,
 256                      AppWindowContents* app_window_contents,
 257                      const CreateParams& params) {
 258   // Initialize the render interface and web contents
 259   app_window_contents_.reset(app_window_contents);
 260   app_window_contents_->Initialize(browser_context(), url);
 261   WebContents* web_contents = app_window_contents_->GetWebContents();
 262   if (CommandLine::ForCurrentProcess()->HasSwitch(
 263           switches::kEnableAppsShowOnFirstPaint)) {
 264     content::WebContentsObserver::Observe(web_contents);
 265   }
 266   delegate_->InitWebContents(web_contents);
 267
 268   WebContentsModalDialogManager::CreateForWebContents(web_contents);
 269   // TODO(jamescook): Delegate out this creation.
 270   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
 271       web_contents);
 272
 273   web_contents->SetDelegate(this);
 274   WebContentsModalDialogManager::FromWebContents(web_contents)
 275       ->SetDelegate(this);
 276   extensions::SetViewType(web_contents, extensions::VIEW_TYPE_APP_WINDOW);
 277
 278   // Initialize the window
 279   CreateParams new_params = LoadDefaults(params);
 280   window_type_ = new_params.window_type;
 281   window_key_ = new_params.window_key;
 282
 283   // Windows cannot be always-on-top in fullscreen mode for security reasons.
 284   cached_always_on_top_ = new_params.always_on_top;
 285   if (new_params.state == ui::SHOW_STATE_FULLSCREEN)
 286     new_params.always_on_top = false;
 287
 288   native_app_window_.reset(delegate_->CreateNativeAppWindow(this, new_params));
 289
 290   popup_manager_.reset(
 291       new web_modal::PopupManager(GetWebContentsModalDialogHost()));
 292   popup_manager_->RegisterWith(web_contents);
 293
 294   // Prevent the browser process from shutting down while this window exists.
 295   AppsClient::Get()->IncrementKeepAliveCount();
 296   UpdateExtensionAppIcon();
 297   AppWindowRegistry::Get(browser_context_)->AddAppWindow(this);
 298
 299   if (new_params.hidden) {
 300     // Although the window starts hidden by default, calling Hide() here
 301     // notifies observers of the window being hidden.
 302     Hide();
 303   } else {
 304     // Panels are not activated by default.
 305     Show(window_type_is_panel() || !new_params.focused ? SHOW_INACTIVE
 306                                                        : SHOW_ACTIVE);
 307   }
 308
 309   if (new_params.state == ui::SHOW_STATE_FULLSCREEN)
 310     Fullscreen();
 311   else if (new_params.state == ui::SHOW_STATE_MAXIMIZED)
 312     Maximize();
 313   else if (new_params.state == ui::SHOW_STATE_MINIMIZED)
 314     Minimize();
 315
 316   OnNativeWindowChanged();
 317
 318   // When the render view host is changed, the native window needs to know
 319   // about it in case it has any setup to do to make the renderer appear
 320   // properly. In particular, on Windows, the view's clickthrough region needs
 321   // to be set.
 322   extensions::ExtensionsBrowserClient* client =
 323       extensions::ExtensionsBrowserClient::Get();
 324   registrar_.Add(this,
 325                  chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
 326                  content::Source<content::BrowserContext>(
 327                      client->GetOriginalContext(browser_context_)));
 328   // Close when the browser process is exiting.
 329   registrar_.Add(this,
 330                  chrome::NOTIFICATION_APP_TERMINATING,
 331                  content::NotificationService::AllSources());
 332   // Update the app menu if an ephemeral app becomes installed.
 333   registrar_.Add(this,
 334                  chrome::NOTIFICATION_EXTENSION_WILL_BE_INSTALLED_DEPRECATED,
 335                  content::Source<content::BrowserContext>(
 336                      client->GetOriginalContext(browser_context_)));
 337
 338   app_window_contents_->LoadContents(new_params.creator_process_id);
 339
 340   if (CommandLine::ForCurrentProcess()->HasSwitch(
 341           switches::kEnableAppsShowOnFirstPaint)) {
 342     // We want to show the window only when the content has been painted. For
 343     // that to happen, we need to define a size for the content, otherwise the
 344     // layout will happen in a 0x0 area.
 345     gfx::Insets frame_insets = native_app_window_->GetFrameInsets();
 346     gfx::Rect initial_bounds = new_params.GetInitialWindowBounds(frame_insets);
 347     initial_bounds.Inset(frame_insets);
 348     apps::ResizeWebContents(web_contents, initial_bounds.size());
 349   }
 350 }
 351
 352 AppWindow::~AppWindow() {
 353   // Unregister now to prevent getting NOTIFICATION_APP_TERMINATING if we're the
 354   // last window open.
 355   registrar_.RemoveAll();
 356
 357   // Remove shutdown prevention.
 358   AppsClient::Get()->DecrementKeepAliveCount();
 359 }
 360
 361 void AppWindow::RequestMediaAccessPermission(
 362     content::WebContents* web_contents,
 363     const content::MediaStreamRequest& request,
 364     const content::MediaResponseCallback& callback) {
 365   const extensions::Extension* extension = GetExtension();
 366   if (!extension)
 367     return;
 368
 369   delegate_->RequestMediaAccessPermission(
 370       web_contents, request, callback, extension);
 371 }
 372
 373 WebContents* AppWindow::OpenURLFromTab(WebContents* source,
 374                                        const content::OpenURLParams& params) {
 375   // Don't allow the current tab to be navigated. It would be nice to map all
 376   // anchor tags (even those without target="_blank") to new tabs, but right
 377   // now we can't distinguish between those and <meta> refreshes or window.href
 378   // navigations, which we don't want to allow.
 379   // TOOD(mihaip): Can we check for user gestures instead?
 380   WindowOpenDisposition disposition = params.disposition;
 381   if (disposition == CURRENT_TAB) {
 382     AddMessageToDevToolsConsole(
 383         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 384         base::StringPrintf(
 385             "Can't open same-window link to \"%s\"; try target=\"_blank\".",
 386             params.url.spec().c_str()));
 387     return NULL;
 388   }
 389
 390   // These dispositions aren't really navigations.
 391   if (disposition == SUPPRESS_OPEN || disposition == SAVE_TO_DISK ||
 392       disposition == IGNORE_ACTION) {
 393     return NULL;
 394   }
 395
 396   WebContents* contents =
 397       delegate_->OpenURLFromTab(browser_context_, source, params);
 398   if (!contents) {
 399     AddMessageToDevToolsConsole(
 400         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 401         base::StringPrintf(
 402             "Can't navigate to \"%s\"; apps do not support navigation.",
 403             params.url.spec().c_str()));
 404   }
 405
 406   return contents;
 407 }
 408
 409 void AppWindow::AddNewContents(WebContents* source,
 410                                WebContents* new_contents,
 411                                WindowOpenDisposition disposition,
 412                                const gfx::Rect& initial_pos,
 413                                bool user_gesture,
 414                                bool* was_blocked) {
 415   DCHECK(new_contents->GetBrowserContext() == browser_context_);
 416   delegate_->AddNewContents(browser_context_,
 417                             new_contents,
 418                             disposition,
 419                             initial_pos,
 420                             user_gesture,
 421                             was_blocked);
 422 }
 423
 424 bool AppWindow::PreHandleKeyboardEvent(
 425     content::WebContents* source,
 426     const content::NativeWebKeyboardEvent& event,
 427     bool* is_keyboard_shortcut) {
 428   const extensions::Extension* extension = GetExtension();
 429   if (!extension)
 430     return false;
 431
 432   // Here, we can handle a key event before the content gets it. When we are
 433   // fullscreen and it is not forced, we want to allow the user to leave
 434   // when ESC is pressed.
 435   // However, if the application has the "overrideEscFullscreen" permission, we
 436   // should let it override that behavior.
 437   // ::HandleKeyboardEvent() will only be called if the KeyEvent's default
 438   // action is not prevented.
 439   // Thus, we should handle the KeyEvent here only if the permission is not set.
 440   if (event.windowsKeyCode == ui::VKEY_ESCAPE &&
 441       (fullscreen_types_ != FULLSCREEN_TYPE_NONE) &&
 442       ((fullscreen_types_ & FULLSCREEN_TYPE_FORCED) == 0) &&
 443       !extension->permissions_data()->HasAPIPermission(
 444           APIPermission::kOverrideEscFullscreen)) {
 445     Restore();
 446     return true;
 447   }
 448
 449   return false;
 450 }
 451
 452 void AppWindow::HandleKeyboardEvent(
 453     WebContents* source,
 454     const content::NativeWebKeyboardEvent& event) {
 455   // If the window is currently fullscreen and not forced, ESC should leave
 456   // fullscreen.  If this code is being called for ESC, that means that the
 457   // KeyEvent's default behavior was not prevented by the content.
 458   if (event.windowsKeyCode == ui::VKEY_ESCAPE &&
 459       (fullscreen_types_ != FULLSCREEN_TYPE_NONE) &&
 460       ((fullscreen_types_ & FULLSCREEN_TYPE_FORCED) == 0)) {
 461     Restore();
 462     return;
 463   }
 464
 465   native_app_window_->HandleKeyboardEvent(event);
 466 }
 467
 468 void AppWindow::RequestToLockMouse(WebContents* web_contents,
 469                                    bool user_gesture,
 470                                    bool last_unlocked_by_target) {
 471   const extensions::Extension* extension = GetExtension();
 472   if (!extension)
 473     return;
 474
 475   bool has_permission = IsExtensionWithPermissionOrSuggestInConsole(
 476       APIPermission::kPointerLock,
 477       extension,
 478       web_contents->GetRenderViewHost());
 479
 480   web_contents->GotResponseToLockMouseRequest(has_permission);
 481 }
 482
 483 bool AppWindow::PreHandleGestureEvent(WebContents* source,
 484                                       const blink::WebGestureEvent& event) {
 485   // Disable pinch zooming in app windows.
 486   return event.type == blink::WebGestureEvent::GesturePinchBegin ||
 487          event.type == blink::WebGestureEvent::GesturePinchUpdate ||
 488          event.type == blink::WebGestureEvent::GesturePinchEnd;
 489 }
 490
 491 void AppWindow::DidFirstVisuallyNonEmptyPaint() {
 492   first_paint_complete_ = true;
 493   if (show_on_first_paint_) {
 494     DCHECK(delayed_show_type_ == SHOW_ACTIVE ||
 495            delayed_show_type_ == SHOW_INACTIVE);
 496     Show(delayed_show_type_);
 497   }
 498 }
 499
 500 void AppWindow::OnNativeClose() {
 501   AppWindowRegistry::Get(browser_context_)->RemoveAppWindow(this);
 502   if (app_window_contents_) {
 503     WebContents* web_contents = app_window_contents_->GetWebContents();
 504     WebContentsModalDialogManager::FromWebContents(web_contents)
 505         ->SetDelegate(NULL);
 506     app_window_contents_->NativeWindowClosed();
 507   }
 508   delete this;
 509 }
 510
 511 void AppWindow::OnNativeWindowChanged() {
 512   SaveWindowPosition();
 513
 514 #if defined(OS_WIN)
 515   if (native_app_window_ && cached_always_on_top_ &&
 516       !IsFullscreen(fullscreen_types_) && !native_app_window_->IsMaximized() &&
 517       !native_app_window_->IsMinimized()) {
 518     UpdateNativeAlwaysOnTop();
 519   }
 520 #endif
 521
 522   if (app_window_contents_ && native_app_window_)
 523     app_window_contents_->NativeWindowChanged(native_app_window_.get());
 524 }
 525
 526 void AppWindow::OnNativeWindowActivated() {
 527   AppWindowRegistry::Get(browser_context_)->AppWindowActivated(this);
 528 }
 529
 530 content::WebContents* AppWindow::web_contents() const {
 531   return app_window_contents_->GetWebContents();
 532 }
 533
 534 const extensions::Extension* AppWindow::GetExtension() const {
 535   return extensions::ExtensionRegistry::Get(browser_context_)
 536       ->enabled_extensions()
 537       .GetByID(extension_id_);
 538 }
 539
 540 NativeAppWindow* AppWindow::GetBaseWindow() { return native_app_window_.get(); }
 541
 542 gfx::NativeWindow AppWindow::GetNativeWindow() {
 543   return GetBaseWindow()->GetNativeWindow();
 544 }
 545
 546 gfx::Rect AppWindow::GetClientBounds() const {
 547   gfx::Rect bounds = native_app_window_->GetBounds();
 548   bounds.Inset(native_app_window_->GetFrameInsets());
 549   return bounds;
 550 }
 551
 552 base::string16 AppWindow::GetTitle() const {
 553   const extensions::Extension* extension = GetExtension();
 554   if (!extension)
 555     return base::string16();
 556
 557   // WebContents::GetTitle() will return the page's URL if there's no <title>
 558   // specified. However, we'd prefer to show the name of the extension in that
 559   // case, so we directly inspect the NavigationEntry's title.
 560   base::string16 title;
 561   if (!web_contents() || !web_contents()->GetController().GetActiveEntry() ||
 562       web_contents()->GetController().GetActiveEntry()->GetTitle().empty()) {
 563     title = base::UTF8ToUTF16(extension->name());
 564   } else {
 565     title = web_contents()->GetTitle();
 566   }
 567   base::RemoveChars(title, base::ASCIIToUTF16("\n"), &title);
 568   return title;
 569 }
 570
 571 void AppWindow::SetAppIconUrl(const GURL& url) {
 572   // If the same url is being used for the badge, ignore it.
 573   if (url == badge_icon_url_)
 574     return;
 575
 576   // Avoid using any previous icons that were being downloaded.
 577   image_loader_ptr_factory_.InvalidateWeakPtrs();
 578
 579   // Reset |app_icon_image_| to abort pending image load (if any).
 580   app_icon_image_.reset();
 581
 582   app_icon_url_ = url;
 583   web_contents()->DownloadImage(
 584       url,
 585       true,  // is a favicon
 586       0,     // no maximum size
 587       base::Bind(&AppWindow::DidDownloadFavicon,
 588                  image_loader_ptr_factory_.GetWeakPtr()));
 589 }
 590
 591 void AppWindow::SetBadgeIconUrl(const GURL& url) {
 592   // Avoid using any previous icons that were being downloaded.
 593   image_loader_ptr_factory_.InvalidateWeakPtrs();
 594
 595   // Reset |app_icon_image_| to abort pending image load (if any).
 596   badge_icon_image_.reset();
 597
 598   badge_icon_url_ = url;
 599   web_contents()->DownloadImage(
 600       url,
 601       true,  // is a favicon
 602       0,     // no maximum size
 603       base::Bind(&AppWindow::DidDownloadFavicon,
 604                  image_loader_ptr_factory_.GetWeakPtr()));
 605 }
 606
 607 void AppWindow::ClearBadge() {
 608   badge_icon_image_.reset();
 609   badge_icon_url_ = GURL();
 610   UpdateBadgeIcon(gfx::Image());
 611 }
 612
 613 void AppWindow::UpdateShape(scoped_ptr<SkRegion> region) {
 614   native_app_window_->UpdateShape(region.Pass());
 615 }
 616
 617 void AppWindow::UpdateDraggableRegions(
 618     const std::vector<extensions::DraggableRegion>& regions) {
 619   native_app_window_->UpdateDraggableRegions(regions);
 620 }
 621
 622 void AppWindow::UpdateAppIcon(const gfx::Image& image) {
 623   if (image.IsEmpty())
 624     return;
 625   app_icon_ = image;
 626   native_app_window_->UpdateWindowIcon();
 627   AppWindowRegistry::Get(browser_context_)->AppWindowIconChanged(this);
 628 }
 629
 630 void AppWindow::Fullscreen() {
 631 #if !defined(OS_MACOSX)
 632   // Do not enter fullscreen mode if disallowed by pref.
 633   PrefService* prefs =
 634       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 635           browser_context());
 636   if (!prefs->GetBoolean(prefs::kAppFullscreenAllowed))
 637     return;
 638 #endif
 639   fullscreen_types_ |= FULLSCREEN_TYPE_WINDOW_API;
 640   SetNativeWindowFullscreen();
 641 }
 642
 643 void AppWindow::Maximize() { GetBaseWindow()->Maximize(); }
 644
 645 void AppWindow::Minimize() { GetBaseWindow()->Minimize(); }
 646
 647 void AppWindow::Restore() {
 648   if (IsFullscreen(fullscreen_types_)) {
 649     fullscreen_types_ = FULLSCREEN_TYPE_NONE;
 650     SetNativeWindowFullscreen();
 651   } else {
 652     GetBaseWindow()->Restore();
 653   }
 654 }
 655
 656 void AppWindow::OSFullscreen() {
 657 #if !defined(OS_MACOSX)
 658   // Do not enter fullscreen mode if disallowed by pref.
 659   PrefService* prefs =
 660       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 661           browser_context());
 662   if (!prefs->GetBoolean(prefs::kAppFullscreenAllowed))
 663     return;
 664 #endif
 665   fullscreen_types_ |= FULLSCREEN_TYPE_OS;
 666   SetNativeWindowFullscreen();
 667 }
 668
 669 void AppWindow::ForcedFullscreen() {
 670   fullscreen_types_ |= FULLSCREEN_TYPE_FORCED;
 671   SetNativeWindowFullscreen();
 672 }
 673
 674 void AppWindow::SetContentSizeConstraints(const gfx::Size& min_size,
 675                                           const gfx::Size& max_size) {
 676   SizeConstraints constraints(min_size, max_size);
 677   native_app_window_->SetContentSizeConstraints(constraints.GetMinimumSize(),
 678                                                 constraints.GetMaximumSize());
 679
 680   gfx::Rect bounds = GetClientBounds();
 681   gfx::Size constrained_size = constraints.ClampSize(bounds.size());
 682   if (bounds.size() != constrained_size) {
 683     bounds.set_size(constrained_size);
 684     bounds.Inset(-native_app_window_->GetFrameInsets());
 685     native_app_window_->SetBounds(bounds);
 686   }
 687   OnNativeWindowChanged();
 688 }
 689
 690 void AppWindow::Show(ShowType show_type) {
 691   is_hidden_ = false;
 692
 693   if (CommandLine::ForCurrentProcess()->HasSwitch(
 694           switches::kEnableAppsShowOnFirstPaint)) {
 695     show_on_first_paint_ = true;
 696
 697     if (!first_paint_complete_) {
 698       delayed_show_type_ = show_type;
 699       return;
 700     }
 701   }
 702
 703   switch (show_type) {
 704     case SHOW_ACTIVE:
 705       GetBaseWindow()->Show();
 706       break;
 707     case SHOW_INACTIVE:
 708       GetBaseWindow()->ShowInactive();
 709       break;
 710   }
 711   AppWindowRegistry::Get(browser_context_)->AppWindowShown(this);
 712
 713   has_been_shown_ = true;
 714   SendOnWindowShownIfShown();
 715 }
 716
 717 void AppWindow::Hide() {
 718   // This is there to prevent race conditions with Hide() being called before
 719   // there was a non-empty paint. It should have no effect in a non-racy
 720   // scenario where the application is hiding then showing a window: the second
 721   // show will not be delayed.
 722   is_hidden_ = true;
 723   show_on_first_paint_ = false;
 724   GetBaseWindow()->Hide();
 725   AppWindowRegistry::Get(browser_context_)->AppWindowHidden(this);
 726 }
 727
 728 void AppWindow::SetAlwaysOnTop(bool always_on_top) {
 729   if (cached_always_on_top_ == always_on_top)
 730     return;
 731
 732   cached_always_on_top_ = always_on_top;
 733
 734   // As a security measure, do not allow fullscreen windows or windows that
 735   // overlap the taskbar to be on top. The property will be applied when the
 736   // window exits fullscreen and moves away from the taskbar.
 737   if (!IsFullscreen(fullscreen_types_) && !IntersectsWithTaskbar())
 738     native_app_window_->SetAlwaysOnTop(always_on_top);
 739
 740   OnNativeWindowChanged();
 741 }
 742
 743 bool AppWindow::IsAlwaysOnTop() const { return cached_always_on_top_; }
 744
 745 void AppWindow::WindowEventsReady() {
 746   can_send_events_ = true;
 747   SendOnWindowShownIfShown();
 748 }
 749
 750 void AppWindow::GetSerializedState(base::DictionaryValue* properties) const {
 751   DCHECK(properties);
 752
 753   properties->SetBoolean("fullscreen",
 754                          native_app_window_->IsFullscreenOrPending());
 755   properties->SetBoolean("minimized", native_app_window_->IsMinimized());
 756   properties->SetBoolean("maximized", native_app_window_->IsMaximized());
 757   properties->SetBoolean("alwaysOnTop", IsAlwaysOnTop());
 758   properties->SetBoolean("hasFrameColor", native_app_window_->HasFrameColor());
 759
 760   // These properties are undocumented and are to enable testing. Alpha is
 761   // removed to
 762   // make the values easier to check.
 763   SkColor transparent_white = ~SK_ColorBLACK;
 764   properties->SetInteger(
 765       "activeFrameColor",
 766       native_app_window_->ActiveFrameColor() & transparent_white);
 767   properties->SetInteger(
 768       "inactiveFrameColor",
 769       native_app_window_->InactiveFrameColor() & transparent_white);
 770
 771   gfx::Rect content_bounds = GetClientBounds();
 772   gfx::Size content_min_size = native_app_window_->GetContentMinimumSize();
 773   gfx::Size content_max_size = native_app_window_->GetContentMaximumSize();
 774   SetBoundsProperties(content_bounds,
 775                       content_min_size,
 776                       content_max_size,
 777                       "innerBounds",
 778                       properties);
 779
 780   gfx::Insets frame_insets = native_app_window_->GetFrameInsets();
 781   gfx::Rect frame_bounds = native_app_window_->GetBounds();
 782   gfx::Size frame_min_size =
 783       SizeConstraints::AddFrameToConstraints(content_min_size, frame_insets);
 784   gfx::Size frame_max_size =
 785       SizeConstraints::AddFrameToConstraints(content_max_size, frame_insets);
 786   SetBoundsProperties(frame_bounds,
 787                       frame_min_size,
 788                       frame_max_size,
 789                       "outerBounds",
 790                       properties);
 791 }
 792
 793 //------------------------------------------------------------------------------
 794 // Private methods
 795
 796 void AppWindow::UpdateBadgeIcon(const gfx::Image& image) {
 797   badge_icon_ = image;
 798   native_app_window_->UpdateBadgeIcon();
 799 }
 800
 801 void AppWindow::DidDownloadFavicon(
 802     int id,
 803     int http_status_code,
 804     const GURL& image_url,
 805     const std::vector<SkBitmap>& bitmaps,
 806     const std::vector<gfx::Size>& original_bitmap_sizes) {
 807   if ((image_url != app_icon_url_ && image_url != badge_icon_url_) ||
 808       bitmaps.empty()) {
 809     return;
 810   }
 811
 812   // Bitmaps are ordered largest to smallest. Choose the smallest bitmap
 813   // whose height >= the preferred size.
 814   int largest_index = 0;
 815   for (size_t i = 1; i < bitmaps.size(); ++i) {
 816     if (bitmaps[i].height() < delegate_->PreferredIconSize())
 817       break;
 818     largest_index = i;
 819   }
 820   const SkBitmap& largest = bitmaps[largest_index];
 821   if (image_url == app_icon_url_) {
 822     UpdateAppIcon(gfx::Image::CreateFrom1xBitmap(largest));
 823     return;
 824   }
 825
 826   UpdateBadgeIcon(gfx::Image::CreateFrom1xBitmap(largest));
 827 }
 828
 829 void AppWindow::OnExtensionIconImageChanged(extensions::IconImage* image) {
 830   DCHECK_EQ(app_icon_image_.get(), image);
 831
 832   UpdateAppIcon(gfx::Image(app_icon_image_->image_skia()));
 833 }
 834
 835 void AppWindow::UpdateExtensionAppIcon() {
 836   // Avoid using any previous app icons were being downloaded.
 837   image_loader_ptr_factory_.InvalidateWeakPtrs();
 838
 839   const gfx::ImageSkia& default_icon =
 840       *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
 841           IDR_APP_DEFAULT_ICON);
 842
 843   const extensions::Extension* extension = GetExtension();
 844   if (!extension)
 845     return;
 846
 847   app_icon_image_.reset(
 848       new extensions::IconImage(browser_context(),
 849                                 extension,
 850                                 extensions::IconsInfo::GetIcons(extension),
 851                                 delegate_->PreferredIconSize(),
 852                                 default_icon,
 853                                 this));
 854
 855   // Triggers actual image loading with 1x resources. The 2x resource will
 856   // be handled by IconImage class when requested.
 857   app_icon_image_->image_skia().GetRepresentation(1.0f);
 858 }
 859
 860 void AppWindow::SetNativeWindowFullscreen() {
 861   native_app_window_->SetFullscreen(fullscreen_types_);
 862
 863   if (cached_always_on_top_)
 864     UpdateNativeAlwaysOnTop();
 865 }
 866
 867 bool AppWindow::IntersectsWithTaskbar() const {
 868 #if defined(OS_WIN)
 869   gfx::Screen* screen = gfx::Screen::GetNativeScreen();
 870   gfx::Rect window_bounds = native_app_window_->GetRestoredBounds();
 871   std::vector<gfx::Display> displays = screen->GetAllDisplays();
 872
 873   for (std::vector<gfx::Display>::const_iterator it = displays.begin();
 874        it != displays.end();
 875        ++it) {
 876     gfx::Rect taskbar_bounds = it->bounds();
 877     taskbar_bounds.Subtract(it->work_area());
 878     if (taskbar_bounds.IsEmpty())
 879       continue;
 880
 881     if (window_bounds.Intersects(taskbar_bounds))
 882       return true;
 883   }
 884 #endif
 885
 886   return false;
 887 }
 888
 889 void AppWindow::UpdateNativeAlwaysOnTop() {
 890   DCHECK(cached_always_on_top_);
 891   bool is_on_top = native_app_window_->IsAlwaysOnTop();
 892   bool fullscreen = IsFullscreen(fullscreen_types_);
 893   bool intersects_taskbar = IntersectsWithTaskbar();
 894
 895   if (is_on_top && (fullscreen || intersects_taskbar)) {
 896     // When entering fullscreen or overlapping the taskbar, ensure windows are
 897     // not always-on-top.
 898     native_app_window_->SetAlwaysOnTop(false);
 899   } else if (!is_on_top && !fullscreen && !intersects_taskbar) {
 900     // When exiting fullscreen and moving away from the taskbar, reinstate
 901     // always-on-top.
 902     native_app_window_->SetAlwaysOnTop(true);
 903   }
 904 }
 905
 906 void AppWindow::SendOnWindowShownIfShown() {
 907   if (!can_send_events_ || !has_been_shown_)
 908     return;
 909
 910   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType)) {
 911     app_window_contents_->DispatchWindowShownForTests();
 912   }
 913 }
 914
 915 void AppWindow::CloseContents(WebContents* contents) {
 916   native_app_window_->Close();
 917 }
 918
 919 bool AppWindow::ShouldSuppressDialogs() { return true; }
 920
 921 content::ColorChooser* AppWindow::OpenColorChooser(
 922     WebContents* web_contents,
 923     SkColor initial_color,
 924     const std::vector<content::ColorSuggestion>& suggestionss) {
 925   return delegate_->ShowColorChooser(web_contents, initial_color);
 926 }
 927
 928 void AppWindow::RunFileChooser(WebContents* tab,
 929                                const content::FileChooserParams& params) {
 930   if (window_type_is_panel()) {
 931     // Panels can't host a file dialog, abort. TODO(stevenjb): allow file
 932     // dialogs to be unhosted but still close with the owning web contents.
 933     // crbug.com/172502.
 934     LOG(WARNING) << "File dialog opened by panel.";
 935     return;
 936   }
 937
 938   delegate_->RunFileChooser(tab, params);
 939 }
 940
 941 bool AppWindow::IsPopupOrPanel(const WebContents* source) const { return true; }
 942
 943 void AppWindow::MoveContents(WebContents* source, const gfx::Rect& pos) {
 944   native_app_window_->SetBounds(pos);
 945 }
 946
 947 void AppWindow::NavigationStateChanged(const content::WebContents* source,
 948                                        unsigned changed_flags) {
 949   if (changed_flags & content::INVALIDATE_TYPE_TITLE)
 950     native_app_window_->UpdateWindowTitle();
 951   else if (changed_flags & content::INVALIDATE_TYPE_TAB)
 952     native_app_window_->UpdateWindowIcon();
 953 }
 954
 955 void AppWindow::ToggleFullscreenModeForTab(content::WebContents* source,
 956                                            bool enter_fullscreen) {
 957 #if !defined(OS_MACOSX)
 958   // Do not enter fullscreen mode if disallowed by pref.
 959   // TODO(bartfab): Add a test once it becomes possible to simulate a user
 960   // gesture. http://crbug.com/174178
 961   PrefService* prefs =
 962       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 963           browser_context());
 964   if (enter_fullscreen && !prefs->GetBoolean(prefs::kAppFullscreenAllowed)) {
 965     return;
 966   }
 967 #endif
 968
 969   const extensions::Extension* extension = GetExtension();
 970   if (!extension)
 971     return;
 972
 973   if (!IsExtensionWithPermissionOrSuggestInConsole(
 974           APIPermission::kFullscreen, extension, source->GetRenderViewHost())) {
 975     return;
 976   }
 977
 978   if (enter_fullscreen)
 979     fullscreen_types_ |= FULLSCREEN_TYPE_HTML_API;
 980   else
 981     fullscreen_types_ &= ~FULLSCREEN_TYPE_HTML_API;
 982   SetNativeWindowFullscreen();
 983 }
 984
 985 bool AppWindow::IsFullscreenForTabOrPending(const content::WebContents* source)
 986     const {
 987   return ((fullscreen_types_ & FULLSCREEN_TYPE_HTML_API) != 0);
 988 }
 989
 990 void AppWindow::Observe(int type,
 991                         const content::NotificationSource& source,
 992                         const content::NotificationDetails& details) {
 993   switch (type) {
 994     case chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED: {
 995       const extensions::Extension* unloaded_extension =
 996           content::Details<extensions::UnloadedExtensionInfo>(details)
 997               ->extension;
 998       if (extension_id_ == unloaded_extension->id())
 999         native_app_window_->Close();
1000       break;
1001     }
1002     case chrome::NOTIFICATION_EXTENSION_WILL_BE_INSTALLED_DEPRECATED: {
1003       const extensions::Extension* installed_extension =
1004           content::Details<const extensions::InstalledExtensionInfo>(details)
1005               ->extension;
1006       DCHECK(installed_extension);
1007       if (installed_extension->id() == extension_id())
1008         native_app_window_->UpdateShelfMenu();
1009       break;
1010     }
1011     case chrome::NOTIFICATION_APP_TERMINATING:
1012       native_app_window_->Close();
1013       break;
1014     default:
1015       NOTREACHED() << "Received unexpected notification";
1016   }
1017 }
1018
1019 void AppWindow::SetWebContentsBlocked(content::WebContents* web_contents,
1020                                       bool blocked) {
1021   delegate_->SetWebContentsBlocked(web_contents, blocked);
1022 }
1023
1024 bool AppWindow::IsWebContentsVisible(content::WebContents* web_contents) {
1025   return delegate_->IsWebContentsVisible(web_contents);
1026 }
1027
1028 WebContentsModalDialogHost* AppWindow::GetWebContentsModalDialogHost() {
1029   return native_app_window_.get();
1030 }
1031
1032 void AppWindow::AddMessageToDevToolsConsole(ConsoleMessageLevel level,
1033                                             const std::string& message) {
1034   content::RenderViewHost* rvh = web_contents()->GetRenderViewHost();
1035   rvh->Send(new ExtensionMsg_AddMessageToConsole(
1036       rvh->GetRoutingID(), level, message));
1037 }
1038
1039 void AppWindow::SaveWindowPosition() {
1040   if (window_key_.empty())
1041     return;
1042   if (!native_app_window_)
1043     return;
1044
1045   AppWindowGeometryCache* cache =
1046       AppWindowGeometryCache::Get(browser_context());
1047
1048   gfx::Rect bounds = native_app_window_->GetRestoredBounds();
1049   gfx::Rect screen_bounds =
1050       gfx::Screen::GetNativeScreen()->GetDisplayMatching(bounds).work_area();
1051   ui::WindowShowState window_state = native_app_window_->GetRestoredState();
1052   cache->SaveGeometry(
1053       extension_id(), window_key_, bounds, screen_bounds, window_state);
1054 }
1055
1056 void AppWindow::AdjustBoundsToBeVisibleOnScreen(
1057     const gfx::Rect& cached_bounds,
1058     const gfx::Rect& cached_screen_bounds,
1059     const gfx::Rect& current_screen_bounds,
1060     const gfx::Size& minimum_size,
1061     gfx::Rect* bounds) const {
1062   *bounds = cached_bounds;
1063
1064   // Reposition and resize the bounds if the cached_screen_bounds is different
1065   // from the current screen bounds and the current screen bounds doesn't
1066   // completely contain the bounds.
1067   if (cached_screen_bounds != current_screen_bounds &&
1068       !current_screen_bounds.Contains(cached_bounds)) {
1069     bounds->set_width(
1070         std::max(minimum_size.width(),
1071                  std::min(bounds->width(), current_screen_bounds.width())));
1072     bounds->set_height(
1073         std::max(minimum_size.height(),
1074                  std::min(bounds->height(), current_screen_bounds.height())));
1075     bounds->set_x(
1076         std::max(current_screen_bounds.x(),
1077                  std::min(bounds->x(),
1078                           current_screen_bounds.right() - bounds->width())));
1079     bounds->set_y(
1080         std::max(current_screen_bounds.y(),
1081                  std::min(bounds->y(),
1082                           current_screen_bounds.bottom() - bounds->height())));
1083   }
1084 }
1085
1086 AppWindow::CreateParams AppWindow::LoadDefaults(CreateParams params)
1087     const {
1088   // Ensure width and height are specified.
1089   if (params.content_spec.bounds.width() == 0 &&
1090       params.window_spec.bounds.width() == 0) {
1091     params.content_spec.bounds.set_width(kDefaultWidth);
1092   }
1093   if (params.content_spec.bounds.height() == 0 &&
1094       params.window_spec.bounds.height() == 0) {
1095     params.content_spec.bounds.set_height(kDefaultHeight);
1096   }
1097
1098   // If left and top are left undefined, the native app window will center
1099   // the window on the main screen in a platform-defined manner.
1100
1101   // Load cached state if it exists.
1102   if (!params.window_key.empty()) {
1103     AppWindowGeometryCache* cache =
1104         AppWindowGeometryCache::Get(browser_context());
1105
1106     gfx::Rect cached_bounds;
1107     gfx::Rect cached_screen_bounds;
1108     ui::WindowShowState cached_state = ui::SHOW_STATE_DEFAULT;
1109     if (cache->GetGeometry(extension_id(),
1110                            params.window_key,
1111                            &cached_bounds,
1112                            &cached_screen_bounds,
1113                            &cached_state)) {
1114       // App window has cached screen bounds, make sure it fits on screen in
1115       // case the screen resolution changed.
1116       gfx::Screen* screen = gfx::Screen::GetNativeScreen();
1117       gfx::Display display = screen->GetDisplayMatching(cached_bounds);
1118       gfx::Rect current_screen_bounds = display.work_area();
1119       SizeConstraints constraints(params.GetWindowMinimumSize(gfx::Insets()),
1120                                   params.GetWindowMaximumSize(gfx::Insets()));
1121       AdjustBoundsToBeVisibleOnScreen(cached_bounds,
1122                                       cached_screen_bounds,
1123                                       current_screen_bounds,
1124                                       constraints.GetMinimumSize(),
1125                                       &params.window_spec.bounds);
1126       params.state = cached_state;
1127
1128       // Since we are restoring a cached state, reset the content bounds spec to
1129       // ensure it is not used.
1130       params.content_spec.ResetBounds();
1131     }
1132   }
1133
1134   return params;
1135 }
1136
1137 // static
1138 SkRegion* AppWindow::RawDraggableRegionsToSkRegion(
1139     const std::vector<extensions::DraggableRegion>& regions) {
1140   SkRegion* sk_region = new SkRegion;
1141   for (std::vector<extensions::DraggableRegion>::const_iterator iter =
1142            regions.begin();
1143        iter != regions.end();
1144        ++iter) {
1145     const extensions::DraggableRegion& region = *iter;
1146     sk_region->op(
1147         region.bounds.x(),
1148         region.bounds.y(),
1149         region.bounds.right(),
1150         region.bounds.bottom(),
1151         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
1152   }
1153   return sk_region;
1154 }
1155
1156 }  // namespace apps