src/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 "base/command_line.h"
  15 #include "base/strings/string_util.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "base/values.h"
  18 #include "chrome/browser/chrome_notification_types.h"
  19 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
  20 #include "chrome/browser/extensions/suggest_permission_util.h"
  21 #include "chrome/common/chrome_switches.h"
  22 #include "chrome/common/extensions/manifest_handlers/icons_handler.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/browser/web_contents_view.h"
  35 #include "content/public/common/media_stream_request.h"
  36 #include "extensions/browser/extension_system.h"
  37 #include "extensions/browser/extensions_browser_client.h"
  38 #include "extensions/browser/process_manager.h"
  39 #include "extensions/browser/view_type_utils.h"
  40 #include "extensions/common/extension.h"
  41 #include "extensions/common/extension_messages.h"
  42 #include "third_party/skia/include/core/SkRegion.h"
  43 #include "ui/gfx/screen.h"
  44
  45 #if !defined(OS_MACOSX)
  46 #include "apps/pref_names.h"
  47 #include "base/prefs/pref_service.h"
  48 #endif
  49
  50 using content::BrowserContext;
  51 using content::ConsoleMessageLevel;
  52 using content::WebContents;
  53 using extensions::APIPermission;
  54 using web_modal::WebContentsModalDialogHost;
  55 using web_modal::WebContentsModalDialogManager;
  56
  57 namespace apps {
  58
  59 namespace {
  60
  61 const int kDefaultWidth = 512;
  62 const int kDefaultHeight = 384;
  63
  64 bool IsFullscreen(int fullscreen_types) {
  65   return fullscreen_types != apps::AppWindow::FULLSCREEN_TYPE_NONE;
  66 }
  67
  68 void SetConstraintProperty(const std::string& name,
  69                            int value,
  70                            base::DictionaryValue* bounds_properties) {
  71   if (value != SizeConstraints::kUnboundedSize)
  72     bounds_properties->SetInteger(name, value);
  73   else
  74     bounds_properties->Set(name, base::Value::CreateNullValue());
  75 }
  76
  77 void SetBoundsProperties(const gfx::Rect& bounds,
  78                          const gfx::Size& min_size,
  79                          const gfx::Size& max_size,
  80                          const std::string& bounds_name,
  81                          base::DictionaryValue* window_properties) {
  82   scoped_ptr<base::DictionaryValue> bounds_properties(
  83       new base::DictionaryValue());
  84
  85   bounds_properties->SetInteger("left", bounds.x());
  86   bounds_properties->SetInteger("top", bounds.y());
  87   bounds_properties->SetInteger("width", bounds.width());
  88   bounds_properties->SetInteger("height", bounds.height());
  89
  90   SetConstraintProperty("minWidth", min_size.width(), bounds_properties.get());
  91   SetConstraintProperty(
  92       "minHeight", min_size.height(), bounds_properties.get());
  93   SetConstraintProperty("maxWidth", max_size.width(), bounds_properties.get());
  94   SetConstraintProperty(
  95       "maxHeight", max_size.height(), bounds_properties.get());
  96
  97   window_properties->Set(bounds_name, bounds_properties.release());
  98 }
  99
 100 // Combines the constraints of the content and window, and returns constraints
 101 // for the window.
 102 gfx::Size GetCombinedWindowConstraints(const gfx::Size& window_constraints,
 103                                        const gfx::Size& content_constraints,
 104                                        const gfx::Insets& frame_insets) {
 105   gfx::Size combined_constraints(window_constraints);
 106   if (content_constraints.width() > 0) {
 107     combined_constraints.set_width(
 108         content_constraints.width() + frame_insets.width());
 109   }
 110   if (content_constraints.height() > 0) {
 111     combined_constraints.set_height(
 112         content_constraints.height() + frame_insets.height());
 113   }
 114   return combined_constraints;
 115 }
 116
 117 // Combines the constraints of the content and window, and returns constraints
 118 // for the content.
 119 gfx::Size GetCombinedContentConstraints(const gfx::Size& window_constraints,
 120                                         const gfx::Size& content_constraints,
 121                                         const gfx::Insets& frame_insets) {
 122   gfx::Size combined_constraints(content_constraints);
 123   if (window_constraints.width() > 0) {
 124     combined_constraints.set_width(
 125         std::max(0, window_constraints.width() - frame_insets.width()));
 126   }
 127   if (window_constraints.height() > 0) {
 128     combined_constraints.set_height(
 129         std::max(0, window_constraints.height() - frame_insets.height()));
 130   }
 131   return combined_constraints;
 132 }
 133
 134 }  // namespace
 135
 136 // AppWindow::BoundsSpecification
 137
 138 const int AppWindow::BoundsSpecification::kUnspecifiedPosition = INT_MIN;
 139
 140 AppWindow::BoundsSpecification::BoundsSpecification()
 141     : bounds(kUnspecifiedPosition, kUnspecifiedPosition, 0, 0) {}
 142
 143 AppWindow::BoundsSpecification::~BoundsSpecification() {}
 144
 145 void AppWindow::BoundsSpecification::ResetBounds() {
 146   bounds.SetRect(kUnspecifiedPosition, kUnspecifiedPosition, 0, 0);
 147 }
 148
 149 // AppWindow::CreateParams
 150
 151 AppWindow::CreateParams::CreateParams()
 152     : window_type(AppWindow::WINDOW_TYPE_DEFAULT),
 153       frame(AppWindow::FRAME_CHROME),
 154       has_frame_color(false),
 155       transparent_background(false),
 156       creator_process_id(0),
 157       state(ui::SHOW_STATE_DEFAULT),
 158       hidden(false),
 159       resizable(true),
 160       focused(true),
 161       always_on_top(false) {}
 162
 163 AppWindow::CreateParams::~CreateParams() {}
 164
 165 gfx::Rect AppWindow::CreateParams::GetInitialWindowBounds(
 166     const gfx::Insets& frame_insets) const {
 167   // Combine into a single window bounds.
 168   gfx::Rect combined_bounds(window_spec.bounds);
 169   if (content_spec.bounds.x() != BoundsSpecification::kUnspecifiedPosition)
 170     combined_bounds.set_x(content_spec.bounds.x() - frame_insets.left());
 171   if (content_spec.bounds.y() != BoundsSpecification::kUnspecifiedPosition)
 172     combined_bounds.set_y(content_spec.bounds.y() - frame_insets.top());
 173   if (content_spec.bounds.width() > 0) {
 174     combined_bounds.set_width(
 175         content_spec.bounds.width() + frame_insets.width());
 176   }
 177   if (content_spec.bounds.height() > 0) {
 178     combined_bounds.set_height(
 179         content_spec.bounds.height() + frame_insets.height());
 180   }
 181
 182   // Constrain the bounds.
 183   SizeConstraints constraints(
 184       GetCombinedWindowConstraints(
 185           window_spec.minimum_size, content_spec.minimum_size, frame_insets),
 186       GetCombinedWindowConstraints(
 187           window_spec.maximum_size, content_spec.maximum_size, frame_insets));
 188   combined_bounds.set_size(constraints.ClampSize(combined_bounds.size()));
 189
 190   return combined_bounds;
 191 }
 192
 193 gfx::Size AppWindow::CreateParams::GetContentMinimumSize(
 194     const gfx::Insets& frame_insets) const {
 195   return GetCombinedContentConstraints(window_spec.minimum_size,
 196                                        content_spec.minimum_size,
 197                                        frame_insets);
 198 }
 199
 200 gfx::Size AppWindow::CreateParams::GetContentMaximumSize(
 201     const gfx::Insets& frame_insets) const {
 202   return GetCombinedContentConstraints(window_spec.maximum_size,
 203                                        content_spec.maximum_size,
 204                                        frame_insets);
 205 }
 206
 207 gfx::Size AppWindow::CreateParams::GetWindowMinimumSize(
 208     const gfx::Insets& frame_insets) const {
 209   return GetCombinedWindowConstraints(window_spec.minimum_size,
 210                                       content_spec.minimum_size,
 211                                       frame_insets);
 212 }
 213
 214 gfx::Size AppWindow::CreateParams::GetWindowMaximumSize(
 215     const gfx::Insets& frame_insets) const {
 216   return GetCombinedWindowConstraints(window_spec.maximum_size,
 217                                       content_spec.maximum_size,
 218                                       frame_insets);
 219 }
 220
 221 // AppWindow::Delegate
 222
 223 AppWindow::Delegate::~Delegate() {}
 224
 225 // AppWindow
 226
 227 AppWindow::AppWindow(BrowserContext* context,
 228                      Delegate* delegate,
 229                      const extensions::Extension* extension)
 230     : browser_context_(context),
 231       extension_(extension),
 232       extension_id_(extension->id()),
 233       window_type_(WINDOW_TYPE_DEFAULT),
 234       delegate_(delegate),
 235       image_loader_ptr_factory_(this),
 236       fullscreen_types_(FULLSCREEN_TYPE_NONE),
 237       show_on_first_paint_(false),
 238       first_paint_complete_(false),
 239       cached_always_on_top_(false) {
 240   extensions::ExtensionsBrowserClient* client =
 241       extensions::ExtensionsBrowserClient::Get();
 242   CHECK(!client->IsGuestSession(context) || context->IsOffTheRecord())
 243       << "Only off the record window may be opened in the guest mode.";
 244 }
 245
 246 void AppWindow::Init(const GURL& url,
 247                      AppWindowContents* app_window_contents,
 248                      const CreateParams& params) {
 249   // Initialize the render interface and web contents
 250   app_window_contents_.reset(app_window_contents);
 251   app_window_contents_->Initialize(browser_context(), url);
 252   WebContents* web_contents = app_window_contents_->GetWebContents();
 253   if (CommandLine::ForCurrentProcess()->HasSwitch(
 254           switches::kEnableAppsShowOnFirstPaint)) {
 255     content::WebContentsObserver::Observe(web_contents);
 256   }
 257   delegate_->InitWebContents(web_contents);
 258   WebContentsModalDialogManager::CreateForWebContents(web_contents);
 259   // TODO(jamescook): Delegate out this creation.
 260   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
 261       web_contents);
 262
 263   web_contents->SetDelegate(this);
 264   WebContentsModalDialogManager::FromWebContents(web_contents)
 265       ->SetDelegate(this);
 266   extensions::SetViewType(web_contents, extensions::VIEW_TYPE_APP_WINDOW);
 267
 268   // Initialize the window
 269   CreateParams new_params = LoadDefaults(params);
 270   window_type_ = new_params.window_type;
 271   window_key_ = new_params.window_key;
 272
 273   // Windows cannot be always-on-top in fullscreen mode for security reasons.
 274   cached_always_on_top_ = new_params.always_on_top;
 275   if (new_params.state == ui::SHOW_STATE_FULLSCREEN)
 276     new_params.always_on_top = false;
 277
 278   native_app_window_.reset(delegate_->CreateNativeAppWindow(this, new_params));
 279
 280   if (!new_params.hidden) {
 281     // Panels are not activated by default.
 282     Show(window_type_is_panel() || !new_params.focused ? SHOW_INACTIVE
 283                                                        : SHOW_ACTIVE);
 284   }
 285
 286   if (new_params.state == ui::SHOW_STATE_FULLSCREEN)
 287     Fullscreen();
 288   else if (new_params.state == ui::SHOW_STATE_MAXIMIZED)
 289     Maximize();
 290   else if (new_params.state == ui::SHOW_STATE_MINIMIZED)
 291     Minimize();
 292
 293   OnNativeWindowChanged();
 294
 295   // When the render view host is changed, the native window needs to know
 296   // about it in case it has any setup to do to make the renderer appear
 297   // properly. In particular, on Windows, the view's clickthrough region needs
 298   // to be set.
 299   extensions::ExtensionsBrowserClient* client =
 300       extensions::ExtensionsBrowserClient::Get();
 301   registrar_.Add(this,
 302                  chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
 303                  content::Source<content::BrowserContext>(
 304                      client->GetOriginalContext(browser_context_)));
 305   // Close when the browser process is exiting.
 306   registrar_.Add(this,
 307                  chrome::NOTIFICATION_APP_TERMINATING,
 308                  content::NotificationService::AllSources());
 309   // Update the app menu if an ephemeral app becomes installed.
 310   registrar_.Add(this,
 311                  chrome::NOTIFICATION_EXTENSION_INSTALLED,
 312                  content::Source<content::BrowserContext>(
 313                      client->GetOriginalContext(browser_context_)));
 314
 315   app_window_contents_->LoadContents(new_params.creator_process_id);
 316
 317   if (CommandLine::ForCurrentProcess()->HasSwitch(
 318           switches::kEnableAppsShowOnFirstPaint)) {
 319     // We want to show the window only when the content has been painted. For
 320     // that to happen, we need to define a size for the content, otherwise the
 321     // layout will happen in a 0x0 area.
 322     // Note: WebContents::GetView() is guaranteed to be non-null.
 323     gfx::Insets frame_insets = native_app_window_->GetFrameInsets();
 324     gfx::Rect initial_bounds = new_params.GetInitialWindowBounds(frame_insets);
 325     initial_bounds.Inset(frame_insets);
 326     web_contents->GetView()->SizeContents(initial_bounds.size());
 327   }
 328
 329   // Prevent the browser process from shutting down while this window is open.
 330   AppsClient::Get()->IncrementKeepAliveCount();
 331
 332   UpdateExtensionAppIcon();
 333
 334   AppWindowRegistry::Get(browser_context_)->AddAppWindow(this);
 335 }
 336
 337 AppWindow::~AppWindow() {
 338   // Unregister now to prevent getting NOTIFICATION_APP_TERMINATING if we're the
 339   // last window open.
 340   registrar_.RemoveAll();
 341
 342   // Remove shutdown prevention.
 343   AppsClient::Get()->DecrementKeepAliveCount();
 344 }
 345
 346 void AppWindow::RequestMediaAccessPermission(
 347     content::WebContents* web_contents,
 348     const content::MediaStreamRequest& request,
 349     const content::MediaResponseCallback& callback) {
 350   delegate_->RequestMediaAccessPermission(
 351       web_contents, request, callback, extension());
 352 }
 353
 354 WebContents* AppWindow::OpenURLFromTab(WebContents* source,
 355                                        const content::OpenURLParams& params) {
 356   // Don't allow the current tab to be navigated. It would be nice to map all
 357   // anchor tags (even those without target="_blank") to new tabs, but right
 358   // now we can't distinguish between those and <meta> refreshes or window.href
 359   // navigations, which we don't want to allow.
 360   // TOOD(mihaip): Can we check for user gestures instead?
 361   WindowOpenDisposition disposition = params.disposition;
 362   if (disposition == CURRENT_TAB) {
 363     AddMessageToDevToolsConsole(
 364         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 365         base::StringPrintf(
 366             "Can't open same-window link to \"%s\"; try target=\"_blank\".",
 367             params.url.spec().c_str()));
 368     return NULL;
 369   }
 370
 371   // These dispositions aren't really navigations.
 372   if (disposition == SUPPRESS_OPEN || disposition == SAVE_TO_DISK ||
 373       disposition == IGNORE_ACTION) {
 374     return NULL;
 375   }
 376
 377   WebContents* contents =
 378       delegate_->OpenURLFromTab(browser_context_, source, params);
 379   if (!contents) {
 380     AddMessageToDevToolsConsole(
 381         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 382         base::StringPrintf(
 383             "Can't navigate to \"%s\"; apps do not support navigation.",
 384             params.url.spec().c_str()));
 385   }
 386
 387   return contents;
 388 }
 389
 390 void AppWindow::AddNewContents(WebContents* source,
 391                                WebContents* new_contents,
 392                                WindowOpenDisposition disposition,
 393                                const gfx::Rect& initial_pos,
 394                                bool user_gesture,
 395                                bool* was_blocked) {
 396   DCHECK(new_contents->GetBrowserContext() == browser_context_);
 397   delegate_->AddNewContents(browser_context_,
 398                             new_contents,
 399                             disposition,
 400                             initial_pos,
 401                             user_gesture,
 402                             was_blocked);
 403 }
 404
 405 bool AppWindow::PreHandleKeyboardEvent(
 406     content::WebContents* source,
 407     const content::NativeWebKeyboardEvent& event,
 408     bool* is_keyboard_shortcut) {
 409   // Here, we can handle a key event before the content gets it. When we are
 410   // fullscreen and it is not forced, we want to allow the user to leave
 411   // when ESC is pressed.
 412   // However, if the application has the "overrideEscFullscreen" permission, we
 413   // should let it override that behavior.
 414   // ::HandleKeyboardEvent() will only be called if the KeyEvent's default
 415   // action is not prevented.
 416   // Thus, we should handle the KeyEvent here only if the permission is not set.
 417   if (event.windowsKeyCode == ui::VKEY_ESCAPE &&
 418       (fullscreen_types_ != FULLSCREEN_TYPE_NONE) &&
 419       ((fullscreen_types_ & FULLSCREEN_TYPE_FORCED) == 0) &&
 420       !extension_->HasAPIPermission(APIPermission::kOverrideEscFullscreen)) {
 421     Restore();
 422     return true;
 423   }
 424
 425   return false;
 426 }
 427
 428 void AppWindow::HandleKeyboardEvent(
 429     WebContents* source,
 430     const content::NativeWebKeyboardEvent& event) {
 431   // If the window is currently fullscreen and not forced, ESC should leave
 432   // fullscreen.  If this code is being called for ESC, that means that the
 433   // KeyEvent's default behavior was not prevented by the content.
 434   if (event.windowsKeyCode == ui::VKEY_ESCAPE &&
 435       (fullscreen_types_ != FULLSCREEN_TYPE_NONE) &&
 436       ((fullscreen_types_ & FULLSCREEN_TYPE_FORCED) == 0)) {
 437     Restore();
 438     return;
 439   }
 440
 441   native_app_window_->HandleKeyboardEvent(event);
 442 }
 443
 444 void AppWindow::RequestToLockMouse(WebContents* web_contents,
 445                                    bool user_gesture,
 446                                    bool last_unlocked_by_target) {
 447   bool has_permission = IsExtensionWithPermissionOrSuggestInConsole(
 448       APIPermission::kPointerLock,
 449       extension_,
 450       web_contents->GetRenderViewHost());
 451
 452   web_contents->GotResponseToLockMouseRequest(has_permission);
 453 }
 454
 455 bool AppWindow::PreHandleGestureEvent(WebContents* source,
 456                                       const blink::WebGestureEvent& event) {
 457   // Disable pinch zooming in app windows.
 458   return event.type == blink::WebGestureEvent::GesturePinchBegin ||
 459          event.type == blink::WebGestureEvent::GesturePinchUpdate ||
 460          event.type == blink::WebGestureEvent::GesturePinchEnd;
 461 }
 462
 463 void AppWindow::DidFirstVisuallyNonEmptyPaint(int32 page_id) {
 464   first_paint_complete_ = true;
 465   if (show_on_first_paint_) {
 466     DCHECK(delayed_show_type_ == SHOW_ACTIVE ||
 467            delayed_show_type_ == SHOW_INACTIVE);
 468     Show(delayed_show_type_);
 469   }
 470 }
 471
 472 void AppWindow::OnNativeClose() {
 473   AppWindowRegistry::Get(browser_context_)->RemoveAppWindow(this);
 474   if (app_window_contents_) {
 475     WebContents* web_contents = app_window_contents_->GetWebContents();
 476     WebContentsModalDialogManager::FromWebContents(web_contents)
 477         ->SetDelegate(NULL);
 478     app_window_contents_->NativeWindowClosed();
 479   }
 480   delete this;
 481 }
 482
 483 void AppWindow::OnNativeWindowChanged() {
 484   SaveWindowPosition();
 485
 486 #if defined(OS_WIN)
 487   if (native_app_window_ && cached_always_on_top_ &&
 488       !IsFullscreen(fullscreen_types_) && !native_app_window_->IsMaximized() &&
 489       !native_app_window_->IsMinimized()) {
 490     UpdateNativeAlwaysOnTop();
 491   }
 492 #endif
 493
 494   if (app_window_contents_ && native_app_window_)
 495     app_window_contents_->NativeWindowChanged(native_app_window_.get());
 496 }
 497
 498 void AppWindow::OnNativeWindowActivated() {
 499   AppWindowRegistry::Get(browser_context_)->AppWindowActivated(this);
 500 }
 501
 502 content::WebContents* AppWindow::web_contents() const {
 503   return app_window_contents_->GetWebContents();
 504 }
 505
 506 NativeAppWindow* AppWindow::GetBaseWindow() { return native_app_window_.get(); }
 507
 508 gfx::NativeWindow AppWindow::GetNativeWindow() {
 509   return GetBaseWindow()->GetNativeWindow();
 510 }
 511
 512 gfx::Rect AppWindow::GetClientBounds() const {
 513   gfx::Rect bounds = native_app_window_->GetBounds();
 514   bounds.Inset(native_app_window_->GetFrameInsets());
 515   return bounds;
 516 }
 517
 518 base::string16 AppWindow::GetTitle() const {
 519   // WebContents::GetTitle() will return the page's URL if there's no <title>
 520   // specified. However, we'd prefer to show the name of the extension in that
 521   // case, so we directly inspect the NavigationEntry's title.
 522   base::string16 title;
 523   if (!web_contents() || !web_contents()->GetController().GetActiveEntry() ||
 524       web_contents()->GetController().GetActiveEntry()->GetTitle().empty()) {
 525     title = base::UTF8ToUTF16(extension()->name());
 526   } else {
 527     title = web_contents()->GetTitle();
 528   }
 529   const base::char16 kBadChars[] = {'\n', 0};
 530   base::RemoveChars(title, kBadChars, &title);
 531   return title;
 532 }
 533
 534 void AppWindow::SetAppIconUrl(const GURL& url) {
 535   // If the same url is being used for the badge, ignore it.
 536   if (url == badge_icon_url_)
 537     return;
 538
 539   // Avoid using any previous icons that were being downloaded.
 540   image_loader_ptr_factory_.InvalidateWeakPtrs();
 541
 542   // Reset |app_icon_image_| to abort pending image load (if any).
 543   app_icon_image_.reset();
 544
 545   app_icon_url_ = url;
 546   web_contents()->DownloadImage(
 547       url,
 548       true,  // is a favicon
 549       0,     // no maximum size
 550       base::Bind(&AppWindow::DidDownloadFavicon,
 551                  image_loader_ptr_factory_.GetWeakPtr()));
 552 }
 553
 554 void AppWindow::SetBadgeIconUrl(const GURL& url) {
 555   // Avoid using any previous icons that were being downloaded.
 556   image_loader_ptr_factory_.InvalidateWeakPtrs();
 557
 558   // Reset |app_icon_image_| to abort pending image load (if any).
 559   badge_icon_image_.reset();
 560
 561   badge_icon_url_ = url;
 562   web_contents()->DownloadImage(
 563       url,
 564       true,  // is a favicon
 565       0,     // no maximum size
 566       base::Bind(&AppWindow::DidDownloadFavicon,
 567                  image_loader_ptr_factory_.GetWeakPtr()));
 568 }
 569
 570 void AppWindow::ClearBadge() {
 571   badge_icon_image_.reset();
 572   badge_icon_url_ = GURL();
 573   UpdateBadgeIcon(gfx::Image());
 574 }
 575
 576 void AppWindow::UpdateShape(scoped_ptr<SkRegion> region) {
 577   native_app_window_->UpdateShape(region.Pass());
 578 }
 579
 580 void AppWindow::UpdateDraggableRegions(
 581     const std::vector<extensions::DraggableRegion>& regions) {
 582   native_app_window_->UpdateDraggableRegions(regions);
 583 }
 584
 585 void AppWindow::UpdateAppIcon(const gfx::Image& image) {
 586   if (image.IsEmpty())
 587     return;
 588   app_icon_ = image;
 589   native_app_window_->UpdateWindowIcon();
 590   AppWindowRegistry::Get(browser_context_)->AppWindowIconChanged(this);
 591 }
 592
 593 void AppWindow::Fullscreen() {
 594 #if !defined(OS_MACOSX)
 595   // Do not enter fullscreen mode if disallowed by pref.
 596   PrefService* prefs =
 597       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 598           browser_context());
 599   if (!prefs->GetBoolean(prefs::kAppFullscreenAllowed))
 600     return;
 601 #endif
 602   fullscreen_types_ |= FULLSCREEN_TYPE_WINDOW_API;
 603   SetNativeWindowFullscreen();
 604 }
 605
 606 void AppWindow::Maximize() { GetBaseWindow()->Maximize(); }
 607
 608 void AppWindow::Minimize() { GetBaseWindow()->Minimize(); }
 609
 610 void AppWindow::Restore() {
 611   if (IsFullscreen(fullscreen_types_)) {
 612     fullscreen_types_ = FULLSCREEN_TYPE_NONE;
 613     SetNativeWindowFullscreen();
 614   } else {
 615     GetBaseWindow()->Restore();
 616   }
 617 }
 618
 619 void AppWindow::OSFullscreen() {
 620 #if !defined(OS_MACOSX)
 621   // Do not enter fullscreen mode if disallowed by pref.
 622   PrefService* prefs =
 623       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 624           browser_context());
 625   if (!prefs->GetBoolean(prefs::kAppFullscreenAllowed))
 626     return;
 627 #endif
 628   fullscreen_types_ |= FULLSCREEN_TYPE_OS;
 629   SetNativeWindowFullscreen();
 630 }
 631
 632 void AppWindow::ForcedFullscreen() {
 633   fullscreen_types_ |= FULLSCREEN_TYPE_FORCED;
 634   SetNativeWindowFullscreen();
 635 }
 636
 637 void AppWindow::SetContentSizeConstraints(const gfx::Size& min_size,
 638                                           const gfx::Size& max_size) {
 639   SizeConstraints constraints(min_size, max_size);
 640   native_app_window_->SetContentSizeConstraints(constraints.GetMinimumSize(),
 641                                                 constraints.GetMaximumSize());
 642
 643   gfx::Rect bounds = GetClientBounds();
 644   gfx::Size constrained_size = constraints.ClampSize(bounds.size());
 645   if (bounds.size() != constrained_size) {
 646     bounds.set_size(constrained_size);
 647     bounds.Inset(-native_app_window_->GetFrameInsets());
 648     native_app_window_->SetBounds(bounds);
 649   }
 650   OnNativeWindowChanged();
 651 }
 652
 653 void AppWindow::Show(ShowType show_type) {
 654   if (CommandLine::ForCurrentProcess()->HasSwitch(
 655           switches::kEnableAppsShowOnFirstPaint)) {
 656     show_on_first_paint_ = true;
 657
 658     if (!first_paint_complete_) {
 659       delayed_show_type_ = show_type;
 660       return;
 661     }
 662   }
 663
 664   switch (show_type) {
 665     case SHOW_ACTIVE:
 666       GetBaseWindow()->Show();
 667       break;
 668     case SHOW_INACTIVE:
 669       GetBaseWindow()->ShowInactive();
 670       break;
 671   }
 672 }
 673
 674 void AppWindow::Hide() {
 675   // This is there to prevent race conditions with Hide() being called before
 676   // there was a non-empty paint. It should have no effect in a non-racy
 677   // scenario where the application is hiding then showing a window: the second
 678   // show will not be delayed.
 679   show_on_first_paint_ = false;
 680   GetBaseWindow()->Hide();
 681 }
 682
 683 void AppWindow::SetAlwaysOnTop(bool always_on_top) {
 684   if (cached_always_on_top_ == always_on_top)
 685     return;
 686
 687   cached_always_on_top_ = always_on_top;
 688
 689   // As a security measure, do not allow fullscreen windows or windows that
 690   // overlap the taskbar to be on top. The property will be applied when the
 691   // window exits fullscreen and moves away from the taskbar.
 692   if (!IsFullscreen(fullscreen_types_) && !IntersectsWithTaskbar())
 693     native_app_window_->SetAlwaysOnTop(always_on_top);
 694
 695   OnNativeWindowChanged();
 696 }
 697
 698 bool AppWindow::IsAlwaysOnTop() const { return cached_always_on_top_; }
 699
 700 void AppWindow::GetSerializedState(base::DictionaryValue* properties) const {
 701   DCHECK(properties);
 702
 703   properties->SetBoolean("fullscreen",
 704                          native_app_window_->IsFullscreenOrPending());
 705   properties->SetBoolean("minimized", native_app_window_->IsMinimized());
 706   properties->SetBoolean("maximized", native_app_window_->IsMaximized());
 707   properties->SetBoolean("alwaysOnTop", IsAlwaysOnTop());
 708   properties->SetBoolean("hasFrameColor", native_app_window_->HasFrameColor());
 709   properties->SetInteger("frameColor", native_app_window_->FrameColor());
 710
 711   gfx::Rect content_bounds = GetClientBounds();
 712   gfx::Size content_min_size = native_app_window_->GetContentMinimumSize();
 713   gfx::Size content_max_size = native_app_window_->GetContentMaximumSize();
 714   SetBoundsProperties(content_bounds,
 715                       content_min_size,
 716                       content_max_size,
 717                       "innerBounds",
 718                       properties);
 719
 720   gfx::Insets frame_insets = native_app_window_->GetFrameInsets();
 721   gfx::Rect frame_bounds = native_app_window_->GetBounds();
 722   gfx::Size frame_min_size =
 723       SizeConstraints::AddFrameToConstraints(content_min_size, frame_insets);
 724   gfx::Size frame_max_size =
 725       SizeConstraints::AddFrameToConstraints(content_max_size, frame_insets);
 726   SetBoundsProperties(frame_bounds,
 727                       frame_min_size,
 728                       frame_max_size,
 729                       "outerBounds",
 730                       properties);
 731 }
 732
 733 //------------------------------------------------------------------------------
 734 // Private methods
 735
 736 void AppWindow::UpdateBadgeIcon(const gfx::Image& image) {
 737   badge_icon_ = image;
 738   native_app_window_->UpdateBadgeIcon();
 739 }
 740
 741 void AppWindow::DidDownloadFavicon(
 742     int id,
 743     int http_status_code,
 744     const GURL& image_url,
 745     const std::vector<SkBitmap>& bitmaps,
 746     const std::vector<gfx::Size>& original_bitmap_sizes) {
 747   if ((image_url != app_icon_url_ && image_url != badge_icon_url_) ||
 748       bitmaps.empty()) {
 749     return;
 750   }
 751
 752   // Bitmaps are ordered largest to smallest. Choose the smallest bitmap
 753   // whose height >= the preferred size.
 754   int largest_index = 0;
 755   for (size_t i = 1; i < bitmaps.size(); ++i) {
 756     if (bitmaps[i].height() < delegate_->PreferredIconSize())
 757       break;
 758     largest_index = i;
 759   }
 760   const SkBitmap& largest = bitmaps[largest_index];
 761   if (image_url == app_icon_url_) {
 762     UpdateAppIcon(gfx::Image::CreateFrom1xBitmap(largest));
 763     return;
 764   }
 765
 766   UpdateBadgeIcon(gfx::Image::CreateFrom1xBitmap(largest));
 767 }
 768
 769 void AppWindow::OnExtensionIconImageChanged(extensions::IconImage* image) {
 770   DCHECK_EQ(app_icon_image_.get(), image);
 771
 772   UpdateAppIcon(gfx::Image(app_icon_image_->image_skia()));
 773 }
 774
 775 void AppWindow::UpdateExtensionAppIcon() {
 776   // Avoid using any previous app icons were being downloaded.
 777   image_loader_ptr_factory_.InvalidateWeakPtrs();
 778
 779   app_icon_image_.reset(
 780       new extensions::IconImage(browser_context(),
 781                                 extension(),
 782                                 extensions::IconsInfo::GetIcons(extension()),
 783                                 delegate_->PreferredIconSize(),
 784                                 extensions::IconsInfo::GetDefaultAppIcon(),
 785                                 this));
 786
 787   // Triggers actual image loading with 1x resources. The 2x resource will
 788   // be handled by IconImage class when requested.
 789   app_icon_image_->image_skia().GetRepresentation(1.0f);
 790 }
 791
 792 void AppWindow::SetNativeWindowFullscreen() {
 793   native_app_window_->SetFullscreen(fullscreen_types_);
 794
 795   if (cached_always_on_top_)
 796     UpdateNativeAlwaysOnTop();
 797 }
 798
 799 bool AppWindow::IntersectsWithTaskbar() const {
 800 #if defined(OS_WIN)
 801   gfx::Screen* screen = gfx::Screen::GetNativeScreen();
 802   gfx::Rect window_bounds = native_app_window_->GetRestoredBounds();
 803   std::vector<gfx::Display> displays = screen->GetAllDisplays();
 804
 805   for (std::vector<gfx::Display>::const_iterator it = displays.begin();
 806        it != displays.end();
 807        ++it) {
 808     gfx::Rect taskbar_bounds = it->bounds();
 809     taskbar_bounds.Subtract(it->work_area());
 810     if (taskbar_bounds.IsEmpty())
 811       continue;
 812
 813     if (window_bounds.Intersects(taskbar_bounds))
 814       return true;
 815   }
 816 #endif
 817
 818   return false;
 819 }
 820
 821 void AppWindow::UpdateNativeAlwaysOnTop() {
 822   DCHECK(cached_always_on_top_);
 823   bool is_on_top = native_app_window_->IsAlwaysOnTop();
 824   bool fullscreen = IsFullscreen(fullscreen_types_);
 825   bool intersects_taskbar = IntersectsWithTaskbar();
 826
 827   if (is_on_top && (fullscreen || intersects_taskbar)) {
 828     // When entering fullscreen or overlapping the taskbar, ensure windows are
 829     // not always-on-top.
 830     native_app_window_->SetAlwaysOnTop(false);
 831   } else if (!is_on_top && !fullscreen && !intersects_taskbar) {
 832     // When exiting fullscreen and moving away from the taskbar, reinstate
 833     // always-on-top.
 834     native_app_window_->SetAlwaysOnTop(true);
 835   }
 836 }
 837
 838 void AppWindow::CloseContents(WebContents* contents) {
 839   native_app_window_->Close();
 840 }
 841
 842 bool AppWindow::ShouldSuppressDialogs() { return true; }
 843
 844 content::ColorChooser* AppWindow::OpenColorChooser(
 845     WebContents* web_contents,
 846     SkColor initial_color,
 847     const std::vector<content::ColorSuggestion>& suggestionss) {
 848   return delegate_->ShowColorChooser(web_contents, initial_color);
 849 }
 850
 851 void AppWindow::RunFileChooser(WebContents* tab,
 852                                const content::FileChooserParams& params) {
 853   if (window_type_is_panel()) {
 854     // Panels can't host a file dialog, abort. TODO(stevenjb): allow file
 855     // dialogs to be unhosted but still close with the owning web contents.
 856     // crbug.com/172502.
 857     LOG(WARNING) << "File dialog opened by panel.";
 858     return;
 859   }
 860
 861   delegate_->RunFileChooser(tab, params);
 862 }
 863
 864 bool AppWindow::IsPopupOrPanel(const WebContents* source) const { return true; }
 865
 866 void AppWindow::MoveContents(WebContents* source, const gfx::Rect& pos) {
 867   native_app_window_->SetBounds(pos);
 868 }
 869
 870 void AppWindow::NavigationStateChanged(const content::WebContents* source,
 871                                        unsigned changed_flags) {
 872   if (changed_flags & content::INVALIDATE_TYPE_TITLE)
 873     native_app_window_->UpdateWindowTitle();
 874   else if (changed_flags & content::INVALIDATE_TYPE_TAB)
 875     native_app_window_->UpdateWindowIcon();
 876 }
 877
 878 void AppWindow::ToggleFullscreenModeForTab(content::WebContents* source,
 879                                            bool enter_fullscreen) {
 880 #if !defined(OS_MACOSX)
 881   // Do not enter fullscreen mode if disallowed by pref.
 882   // TODO(bartfab): Add a test once it becomes possible to simulate a user
 883   // gesture. http://crbug.com/174178
 884   PrefService* prefs =
 885       extensions::ExtensionsBrowserClient::Get()->GetPrefServiceForContext(
 886           browser_context());
 887   if (enter_fullscreen && !prefs->GetBoolean(prefs::kAppFullscreenAllowed)) {
 888     return;
 889   }
 890 #endif
 891
 892   if (!IsExtensionWithPermissionOrSuggestInConsole(
 893            APIPermission::kFullscreen,
 894            extension_,
 895            source->GetRenderViewHost())) {
 896     return;
 897   }
 898
 899   if (enter_fullscreen)
 900     fullscreen_types_ |= FULLSCREEN_TYPE_HTML_API;
 901   else
 902     fullscreen_types_ &= ~FULLSCREEN_TYPE_HTML_API;
 903   SetNativeWindowFullscreen();
 904 }
 905
 906 bool AppWindow::IsFullscreenForTabOrPending(const content::WebContents* source)
 907     const {
 908   return ((fullscreen_types_ & FULLSCREEN_TYPE_HTML_API) != 0);
 909 }
 910
 911 void AppWindow::Observe(int type,
 912                         const content::NotificationSource& source,
 913                         const content::NotificationDetails& details) {
 914   switch (type) {
 915     case chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED: {
 916       const extensions::Extension* unloaded_extension =
 917           content::Details<extensions::UnloadedExtensionInfo>(details)
 918               ->extension;
 919       if (extension_ == unloaded_extension)
 920         native_app_window_->Close();
 921       break;
 922     }
 923     case chrome::NOTIFICATION_EXTENSION_INSTALLED: {
 924       const extensions::Extension* installed_extension =
 925           content::Details<const extensions::InstalledExtensionInfo>(details)
 926               ->extension;
 927       DCHECK(installed_extension);
 928       if (installed_extension->id() == extension_->id())
 929         native_app_window_->UpdateShelfMenu();
 930       break;
 931     }
 932     case chrome::NOTIFICATION_APP_TERMINATING:
 933       native_app_window_->Close();
 934       break;
 935     default:
 936       NOTREACHED() << "Received unexpected notification";
 937   }
 938 }
 939
 940 void AppWindow::SetWebContentsBlocked(content::WebContents* web_contents,
 941                                       bool blocked) {
 942   delegate_->SetWebContentsBlocked(web_contents, blocked);
 943 }
 944
 945 bool AppWindow::IsWebContentsVisible(content::WebContents* web_contents) {
 946   return delegate_->IsWebContentsVisible(web_contents);
 947 }
 948
 949 WebContentsModalDialogHost* AppWindow::GetWebContentsModalDialogHost() {
 950   return native_app_window_.get();
 951 }
 952
 953 void AppWindow::AddMessageToDevToolsConsole(ConsoleMessageLevel level,
 954                                             const std::string& message) {
 955   content::RenderViewHost* rvh = web_contents()->GetRenderViewHost();
 956   rvh->Send(new ExtensionMsg_AddMessageToConsole(
 957       rvh->GetRoutingID(), level, message));
 958 }
 959
 960 void AppWindow::SaveWindowPosition() {
 961   if (window_key_.empty())
 962     return;
 963   if (!native_app_window_)
 964     return;
 965
 966   AppWindowGeometryCache* cache =
 967       AppWindowGeometryCache::Get(browser_context());
 968
 969   gfx::Rect bounds = native_app_window_->GetRestoredBounds();
 970   gfx::Rect screen_bounds =
 971       gfx::Screen::GetNativeScreen()->GetDisplayMatching(bounds).work_area();
 972   ui::WindowShowState window_state = native_app_window_->GetRestoredState();
 973   cache->SaveGeometry(
 974       extension()->id(), window_key_, bounds, screen_bounds, window_state);
 975 }
 976
 977 void AppWindow::AdjustBoundsToBeVisibleOnScreen(
 978     const gfx::Rect& cached_bounds,
 979     const gfx::Rect& cached_screen_bounds,
 980     const gfx::Rect& current_screen_bounds,
 981     const gfx::Size& minimum_size,
 982     gfx::Rect* bounds) const {
 983   *bounds = cached_bounds;
 984
 985   // Reposition and resize the bounds if the cached_screen_bounds is different
 986   // from the current screen bounds and the current screen bounds doesn't
 987   // completely contain the bounds.
 988   if (cached_screen_bounds != current_screen_bounds &&
 989       !current_screen_bounds.Contains(cached_bounds)) {
 990     bounds->set_width(
 991         std::max(minimum_size.width(),
 992                  std::min(bounds->width(), current_screen_bounds.width())));
 993     bounds->set_height(
 994         std::max(minimum_size.height(),
 995                  std::min(bounds->height(), current_screen_bounds.height())));
 996     bounds->set_x(
 997         std::max(current_screen_bounds.x(),
 998                  std::min(bounds->x(),
 999                           current_screen_bounds.right() - bounds->width())));
1000     bounds->set_y(
1001         std::max(current_screen_bounds.y(),
1002                  std::min(bounds->y(),
1003                           current_screen_bounds.bottom() - bounds->height())));
1004   }
1005 }
1006
1007 AppWindow::CreateParams AppWindow::LoadDefaults(CreateParams params)
1008     const {
1009   // Ensure width and height are specified.
1010   if (params.content_spec.bounds.width() == 0 &&
1011       params.window_spec.bounds.width() == 0) {
1012     params.content_spec.bounds.set_width(kDefaultWidth);
1013   }
1014   if (params.content_spec.bounds.height() == 0 &&
1015       params.window_spec.bounds.height() == 0) {
1016     params.content_spec.bounds.set_height(kDefaultHeight);
1017   }
1018
1019   // If left and top are left undefined, the native app window will center
1020   // the window on the main screen in a platform-defined manner.
1021
1022   // Load cached state if it exists.
1023   if (!params.window_key.empty()) {
1024     AppWindowGeometryCache* cache =
1025         AppWindowGeometryCache::Get(browser_context());
1026
1027     gfx::Rect cached_bounds;
1028     gfx::Rect cached_screen_bounds;
1029     ui::WindowShowState cached_state = ui::SHOW_STATE_DEFAULT;
1030     if (cache->GetGeometry(extension()->id(),
1031                            params.window_key,
1032                            &cached_bounds,
1033                            &cached_screen_bounds,
1034                            &cached_state)) {
1035
1036       // App window has cached screen bounds, make sure it fits on screen in
1037       // case the screen resolution changed.
1038       gfx::Screen* screen = gfx::Screen::GetNativeScreen();
1039       gfx::Display display = screen->GetDisplayMatching(cached_bounds);
1040       gfx::Rect current_screen_bounds = display.work_area();
1041       SizeConstraints constraints(params.GetWindowMinimumSize(gfx::Insets()),
1042                                   params.GetWindowMaximumSize(gfx::Insets()));
1043       AdjustBoundsToBeVisibleOnScreen(cached_bounds,
1044                                       cached_screen_bounds,
1045                                       current_screen_bounds,
1046                                       constraints.GetMinimumSize(),
1047                                       &params.window_spec.bounds);
1048       params.state = cached_state;
1049
1050       // Since we are restoring a cached state, reset the content bounds spec to
1051       // ensure it is not used.
1052       params.content_spec.ResetBounds();
1053     }
1054   }
1055
1056   return params;
1057 }
1058
1059 // static
1060 SkRegion* AppWindow::RawDraggableRegionsToSkRegion(
1061     const std::vector<extensions::DraggableRegion>& regions) {
1062   SkRegion* sk_region = new SkRegion;
1063   for (std::vector<extensions::DraggableRegion>::const_iterator iter =
1064            regions.begin();
1065        iter != regions.end();
1066        ++iter) {
1067     const extensions::DraggableRegion& region = *iter;
1068     sk_region->op(
1069         region.bounds.x(),
1070         region.bounds.y(),
1071         region.bounds.right(),
1072         region.bounds.bottom(),
1073         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
1074   }
1075   return sk_region;
1076 }
1077
1078 }  // namespace apps