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