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