apps/shell_window.cc

   1 // Copyright 2013 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/shell_window.h"
   6
   7 #include "apps/shell_window_geometry_cache.h"
   8 #include "apps/shell_window_registry.h"
   9 #include "apps/ui/native_app_window.h"
  10 #include "base/command_line.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "base/values.h"
  14 #include "chrome/browser/chrome_notification_types.h"
  15 #include "chrome/browser/extensions/extension_system.h"
  16 #include "chrome/browser/extensions/extension_web_contents_observer.h"
  17 #include "chrome/browser/extensions/suggest_permission_util.h"
  18 #include "chrome/browser/lifetime/application_lifetime.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/common/chrome_switches.h"
  21 #include "chrome/common/extensions/extension_messages.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/invalidate_type.h"
  25 #include "content/public/browser/navigation_entry.h"
  26 #include "content/public/browser/notification_details.h"
  27 #include "content/public/browser/notification_service.h"
  28 #include "content/public/browser/notification_source.h"
  29 #include "content/public/browser/notification_types.h"
  30 #include "content/public/browser/render_view_host.h"
  31 #include "content/public/browser/resource_dispatcher_host.h"
  32 #include "content/public/browser/web_contents.h"
  33 #include "content/public/browser/web_contents_view.h"
  34 #include "content/public/common/media_stream_request.h"
  35 #include "extensions/browser/process_manager.h"
  36 #include "extensions/browser/view_type_utils.h"
  37 #include "extensions/common/extension.h"
  38 #include "third_party/skia/include/core/SkRegion.h"
  39 #include "ui/gfx/screen.h"
  40
  41 #if !defined(OS_MACOSX)
  42 #include "apps/pref_names.h"
  43 #include "base/prefs/pref_service.h"
  44 #endif
  45
  46 using content::ConsoleMessageLevel;
  47 using content::WebContents;
  48 using extensions::APIPermission;
  49 using web_modal::WebContentsModalDialogHost;
  50 using web_modal::WebContentsModalDialogManager;
  51
  52 namespace {
  53 const int kDefaultWidth = 512;
  54 const int kDefaultHeight = 384;
  55
  56 }  // namespace
  57
  58 namespace apps {
  59
  60 ShellWindow::SizeConstraints::SizeConstraints()
  61     : maximum_size_(kUnboundedSize, kUnboundedSize) {
  62 }
  63
  64 ShellWindow::SizeConstraints::SizeConstraints(const gfx::Size& min_size,
  65                                               const gfx::Size& max_size)
  66     : minimum_size_(min_size),
  67       maximum_size_(max_size) {
  68 }
  69
  70 ShellWindow::SizeConstraints::~SizeConstraints() {}
  71
  72 gfx::Size ShellWindow::SizeConstraints::ClampSize(gfx::Size size) const {
  73   const gfx::Size max_size = GetMaximumSize();
  74   if (max_size.width() != kUnboundedSize)
  75     size.set_width(std::min(size.width(), GetMaximumSize().width()));
  76   if (max_size.height() != kUnboundedSize)
  77     size.set_height(std::min(size.height(), GetMaximumSize().height()));
  78   size.SetToMax(GetMinimumSize());
  79   return size;
  80 }
  81
  82 bool ShellWindow::SizeConstraints::HasMinimumSize() const {
  83   return GetMinimumSize().width() != kUnboundedSize ||
  84       GetMinimumSize().height() != kUnboundedSize;
  85 }
  86
  87 bool ShellWindow::SizeConstraints::HasMaximumSize() const {
  88   const gfx::Size max_size = GetMaximumSize();
  89   return max_size.width() != kUnboundedSize ||
  90       max_size.height() != kUnboundedSize;
  91 }
  92
  93 bool ShellWindow::SizeConstraints::HasFixedSize() const {
  94   return !GetMinimumSize().IsEmpty() && GetMinimumSize() == GetMaximumSize();
  95 }
  96
  97 gfx::Size ShellWindow::SizeConstraints::GetMinimumSize() const {
  98   return minimum_size_;
  99 }
 100
 101 gfx::Size ShellWindow::SizeConstraints::GetMaximumSize() const {
 102   return gfx::Size(
 103       maximum_size_.width() == kUnboundedSize ?
 104           kUnboundedSize :
 105           std::max(maximum_size_.width(), minimum_size_.width()),
 106       maximum_size_.height() == kUnboundedSize ?
 107           kUnboundedSize :
 108           std::max(maximum_size_.height(), minimum_size_.height()));
 109 }
 110
 111 void ShellWindow::SizeConstraints::set_minimum_size(const gfx::Size& min_size) {
 112   minimum_size_ = min_size;
 113 }
 114
 115 void ShellWindow::SizeConstraints::set_maximum_size(const gfx::Size& max_size) {
 116   maximum_size_ = max_size;
 117 }
 118
 119 ShellWindow::CreateParams::CreateParams()
 120   : window_type(ShellWindow::WINDOW_TYPE_DEFAULT),
 121     frame(ShellWindow::FRAME_CHROME),
 122     transparent_background(false),
 123     bounds(INT_MIN, INT_MIN, 0, 0),
 124     creator_process_id(0),
 125     state(ui::SHOW_STATE_DEFAULT),
 126     hidden(false),
 127     resizable(true),
 128     focused(true),
 129     always_on_top(false) {}
 130
 131 ShellWindow::CreateParams::~CreateParams() {}
 132
 133 ShellWindow::Delegate::~Delegate() {}
 134
 135 ShellWindow::ShellWindow(Profile* profile,
 136                          Delegate* delegate,
 137                          const extensions::Extension* extension)
 138     : profile_(profile),
 139       extension_(extension),
 140       extension_id_(extension->id()),
 141       window_type_(WINDOW_TYPE_DEFAULT),
 142       delegate_(delegate),
 143       image_loader_ptr_factory_(this),
 144       fullscreen_types_(FULLSCREEN_TYPE_NONE),
 145       show_on_first_paint_(false),
 146       first_paint_complete_(false) {
 147 }
 148
 149 void ShellWindow::Init(const GURL& url,
 150                        ShellWindowContents* shell_window_contents,
 151                        const CreateParams& params) {
 152   // Initialize the render interface and web contents
 153   shell_window_contents_.reset(shell_window_contents);
 154   shell_window_contents_->Initialize(profile(), url);
 155   WebContents* web_contents = shell_window_contents_->GetWebContents();
 156   if (CommandLine::ForCurrentProcess()->HasSwitch(
 157         switches::kEnableAppsShowOnFirstPaint)) {
 158     content::WebContentsObserver::Observe(web_contents);
 159   }
 160   delegate_->InitWebContents(web_contents);
 161   WebContentsModalDialogManager::CreateForWebContents(web_contents);
 162   extensions::ExtensionWebContentsObserver::CreateForWebContents(web_contents);
 163
 164   web_contents->SetDelegate(this);
 165   WebContentsModalDialogManager::FromWebContents(web_contents)->
 166       SetDelegate(this);
 167   extensions::SetViewType(web_contents, extensions::VIEW_TYPE_APP_SHELL);
 168
 169   // Initialize the window
 170   CreateParams new_params = LoadDefaultsAndConstrain(params);
 171   window_type_ = new_params.window_type;
 172   window_key_ = new_params.window_key;
 173   size_constraints_ = SizeConstraints(new_params.minimum_size,
 174                                       new_params.maximum_size);
 175   native_app_window_.reset(delegate_->CreateNativeAppWindow(this, new_params));
 176
 177   if (!new_params.hidden) {
 178     // Panels are not activated by default.
 179     Show(window_type_is_panel() ? SHOW_INACTIVE : SHOW_ACTIVE);
 180   }
 181
 182   if (new_params.state == ui::SHOW_STATE_FULLSCREEN)
 183     Fullscreen();
 184   else if (new_params.state == ui::SHOW_STATE_MAXIMIZED)
 185     Maximize();
 186   else if (new_params.state == ui::SHOW_STATE_MINIMIZED)
 187     Minimize();
 188
 189   OnNativeWindowChanged();
 190
 191   // When the render view host is changed, the native window needs to know
 192   // about it in case it has any setup to do to make the renderer appear
 193   // properly. In particular, on Windows, the view's clickthrough region needs
 194   // to be set.
 195   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
 196                  content::Source<Profile>(profile_));
 197   // Close when the browser process is exiting.
 198   registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
 199                  content::NotificationService::AllSources());
 200
 201   shell_window_contents_->LoadContents(new_params.creator_process_id);
 202
 203   if (CommandLine::ForCurrentProcess()->HasSwitch(
 204         switches::kEnableAppsShowOnFirstPaint)) {
 205     // We want to show the window only when the content has been painted. For
 206     // that to happen, we need to define a size for the content, otherwise the
 207     // layout will happen in a 0x0 area.
 208     // Note: WebContents::GetView() is guaranteed to be non-null.
 209     web_contents->GetView()->SizeContents(new_params.bounds.size());
 210   }
 211
 212   // Prevent the browser process from shutting down while this window is open.
 213   chrome::StartKeepAlive();
 214
 215   UpdateExtensionAppIcon();
 216
 217   ShellWindowRegistry::Get(profile_)->AddShellWindow(this);
 218 }
 219
 220 ShellWindow::~ShellWindow() {
 221   // Unregister now to prevent getting NOTIFICATION_APP_TERMINATING if we're the
 222   // last window open.
 223   registrar_.RemoveAll();
 224
 225   // Remove shutdown prevention.
 226   chrome::EndKeepAlive();
 227 }
 228
 229 void ShellWindow::RequestMediaAccessPermission(
 230     content::WebContents* web_contents,
 231     const content::MediaStreamRequest& request,
 232     const content::MediaResponseCallback& callback) {
 233   delegate_->RequestMediaAccessPermission(web_contents, request, callback,
 234                                           extension());
 235 }
 236
 237 WebContents* ShellWindow::OpenURLFromTab(WebContents* source,
 238                                          const content::OpenURLParams& params) {
 239   // Don't allow the current tab to be navigated. It would be nice to map all
 240   // anchor tags (even those without target="_blank") to new tabs, but right
 241   // now we can't distinguish between those and <meta> refreshes or window.href
 242   // navigations, which we don't want to allow.
 243   // TOOD(mihaip): Can we check for user gestures instead?
 244   WindowOpenDisposition disposition = params.disposition;
 245   if (disposition == CURRENT_TAB) {
 246     AddMessageToDevToolsConsole(
 247         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 248         base::StringPrintf(
 249             "Can't open same-window link to \"%s\"; try target=\"_blank\".",
 250             params.url.spec().c_str()));
 251     return NULL;
 252   }
 253
 254   // These dispositions aren't really navigations.
 255   if (disposition == SUPPRESS_OPEN || disposition == SAVE_TO_DISK ||
 256       disposition == IGNORE_ACTION) {
 257     return NULL;
 258   }
 259
 260   WebContents* contents = delegate_->OpenURLFromTab(profile_, source,
 261                                                     params);
 262   if (!contents) {
 263     AddMessageToDevToolsConsole(
 264         content::CONSOLE_MESSAGE_LEVEL_ERROR,
 265         base::StringPrintf(
 266             "Can't navigate to \"%s\"; apps do not support navigation.",
 267             params.url.spec().c_str()));
 268   }
 269
 270   return contents;
 271 }
 272
 273 void ShellWindow::AddNewContents(WebContents* source,
 274                                  WebContents* new_contents,
 275                                  WindowOpenDisposition disposition,
 276                                  const gfx::Rect& initial_pos,
 277                                  bool user_gesture,
 278                                  bool* was_blocked) {
 279   DCHECK(Profile::FromBrowserContext(new_contents->GetBrowserContext()) ==
 280       profile_);
 281   delegate_->AddNewContents(profile_, new_contents, disposition,
 282                             initial_pos, user_gesture, was_blocked);
 283 }
 284
 285 void ShellWindow::HandleKeyboardEvent(
 286     WebContents* source,
 287     const content::NativeWebKeyboardEvent& event) {
 288   native_app_window_->HandleKeyboardEvent(event);
 289 }
 290
 291 void ShellWindow::RequestToLockMouse(WebContents* web_contents,
 292                                      bool user_gesture,
 293                                      bool last_unlocked_by_target) {
 294   bool has_permission = IsExtensionWithPermissionOrSuggestInConsole(
 295       APIPermission::kPointerLock,
 296       extension_,
 297       web_contents->GetRenderViewHost());
 298
 299   web_contents->GotResponseToLockMouseRequest(has_permission);
 300 }
 301
 302 void ShellWindow::DidFirstVisuallyNonEmptyPaint(int32 page_id) {
 303   first_paint_complete_ = true;
 304   if (show_on_first_paint_) {
 305     DCHECK(delayed_show_type_ == SHOW_ACTIVE ||
 306            delayed_show_type_ == SHOW_INACTIVE);
 307     Show(delayed_show_type_);
 308   }
 309 }
 310
 311 void ShellWindow::OnNativeClose() {
 312   ShellWindowRegistry::Get(profile_)->RemoveShellWindow(this);
 313   if (shell_window_contents_) {
 314     WebContents* web_contents = shell_window_contents_->GetWebContents();
 315     WebContentsModalDialogManager::FromWebContents(web_contents)->
 316         SetDelegate(NULL);
 317     shell_window_contents_->NativeWindowClosed();
 318   }
 319   delete this;
 320 }
 321
 322 void ShellWindow::OnNativeWindowChanged() {
 323   SaveWindowPosition();
 324   if (shell_window_contents_ && native_app_window_)
 325     shell_window_contents_->NativeWindowChanged(native_app_window_.get());
 326 }
 327
 328 void ShellWindow::OnNativeWindowActivated() {
 329   ShellWindowRegistry::Get(profile_)->ShellWindowActivated(this);
 330 }
 331
 332 content::WebContents* ShellWindow::web_contents() const {
 333   return shell_window_contents_->GetWebContents();
 334 }
 335
 336 NativeAppWindow* ShellWindow::GetBaseWindow() {
 337   return native_app_window_.get();
 338 }
 339
 340 gfx::NativeWindow ShellWindow::GetNativeWindow() {
 341   return GetBaseWindow()->GetNativeWindow();
 342 }
 343
 344 gfx::Rect ShellWindow::GetClientBounds() const {
 345   gfx::Rect bounds = native_app_window_->GetBounds();
 346   bounds.Inset(native_app_window_->GetFrameInsets());
 347   return bounds;
 348 }
 349
 350 string16 ShellWindow::GetTitle() const {
 351   // WebContents::GetTitle() will return the page's URL if there's no <title>
 352   // specified. However, we'd prefer to show the name of the extension in that
 353   // case, so we directly inspect the NavigationEntry's title.
 354   string16 title;
 355   if (!web_contents() ||
 356       !web_contents()->GetController().GetActiveEntry() ||
 357       web_contents()->GetController().GetActiveEntry()->GetTitle().empty()) {
 358     title = UTF8ToUTF16(extension()->name());
 359   } else {
 360     title = web_contents()->GetTitle();
 361   }
 362   const char16 kBadChars[] = { '\n', 0 };
 363   RemoveChars(title, kBadChars, &title);
 364   return title;
 365 }
 366
 367 void ShellWindow::SetAppIconUrl(const GURL& url) {
 368   // Avoid using any previous app icons were are being downloaded.
 369   image_loader_ptr_factory_.InvalidateWeakPtrs();
 370
 371   // Reset |app_icon_image_| to abort pending image load (if any).
 372   app_icon_image_.reset();
 373
 374   app_icon_url_ = url;
 375   web_contents()->DownloadImage(
 376       url,
 377       true,  // is a favicon
 378       0,  // no maximum size
 379       base::Bind(&ShellWindow::DidDownloadFavicon,
 380                  image_loader_ptr_factory_.GetWeakPtr()));
 381 }
 382
 383 void ShellWindow::UpdateInputRegion(scoped_ptr<SkRegion> region) {
 384   native_app_window_->UpdateInputRegion(region.Pass());
 385 }
 386
 387 void ShellWindow::UpdateDraggableRegions(
 388     const std::vector<extensions::DraggableRegion>& regions) {
 389   native_app_window_->UpdateDraggableRegions(regions);
 390 }
 391
 392 void ShellWindow::UpdateAppIcon(const gfx::Image& image) {
 393   if (image.IsEmpty())
 394     return;
 395   app_icon_ = image;
 396   native_app_window_->UpdateWindowIcon();
 397   ShellWindowRegistry::Get(profile_)->ShellWindowIconChanged(this);
 398 }
 399
 400 void ShellWindow::Fullscreen() {
 401 #if !defined(OS_MACOSX)
 402   // Do not enter fullscreen mode if disallowed by pref.
 403   if (!profile()->GetPrefs()->GetBoolean(prefs::kAppFullscreenAllowed))
 404     return;
 405 #endif
 406   fullscreen_types_ |= FULLSCREEN_TYPE_WINDOW_API;
 407   GetBaseWindow()->SetFullscreen(fullscreen_types_);
 408 }
 409
 410 void ShellWindow::Maximize() {
 411   GetBaseWindow()->Maximize();
 412 }
 413
 414 void ShellWindow::Minimize() {
 415   GetBaseWindow()->Minimize();
 416 }
 417
 418 void ShellWindow::Restore() {
 419   if (fullscreen_types_ != FULLSCREEN_TYPE_NONE) {
 420     fullscreen_types_ = FULLSCREEN_TYPE_NONE;
 421     GetBaseWindow()->SetFullscreen(fullscreen_types_);
 422   } else {
 423     GetBaseWindow()->Restore();
 424   }
 425 }
 426
 427 void ShellWindow::OSFullscreen() {
 428 #if !defined(OS_MACOSX)
 429   // Do not enter fullscreen mode if disallowed by pref.
 430   if (!profile()->GetPrefs()->GetBoolean(prefs::kAppFullscreenAllowed))
 431     return;
 432 #endif
 433   fullscreen_types_ |= FULLSCREEN_TYPE_OS;
 434   GetBaseWindow()->SetFullscreen(fullscreen_types_);
 435 }
 436
 437 void ShellWindow::SetMinimumSize(const gfx::Size& min_size) {
 438   size_constraints_.set_minimum_size(min_size);
 439   OnSizeConstraintsChanged();
 440 }
 441
 442 void ShellWindow::SetMaximumSize(const gfx::Size& max_size) {
 443   size_constraints_.set_maximum_size(max_size);
 444   OnSizeConstraintsChanged();
 445 }
 446
 447 void ShellWindow::Show(ShowType show_type) {
 448   if (CommandLine::ForCurrentProcess()->HasSwitch(
 449         switches::kEnableAppsShowOnFirstPaint)) {
 450     show_on_first_paint_ = true;
 451
 452     if (!first_paint_complete_) {
 453       delayed_show_type_ = show_type;
 454       return;
 455     }
 456   }
 457
 458   switch (show_type) {
 459     case SHOW_ACTIVE:
 460       GetBaseWindow()->Show();
 461       break;
 462     case SHOW_INACTIVE:
 463       GetBaseWindow()->ShowInactive();
 464       break;
 465   }
 466 }
 467
 468 void ShellWindow::Hide() {
 469   // This is there to prevent race conditions with Hide() being called before
 470   // there was a non-empty paint. It should have no effect in a non-racy
 471   // scenario where the application is hiding then showing a window: the second
 472   // show will not be delayed.
 473   show_on_first_paint_ = false;
 474   GetBaseWindow()->Hide();
 475 }
 476
 477 //------------------------------------------------------------------------------
 478 // Private methods
 479
 480 void ShellWindow::DidDownloadFavicon(
 481     int id,
 482     int http_status_code,
 483     const GURL& image_url,
 484     const std::vector<SkBitmap>& bitmaps,
 485     const std::vector<gfx::Size>& original_bitmap_sizes) {
 486   if (image_url != app_icon_url_ || bitmaps.empty())
 487     return;
 488
 489   // Bitmaps are ordered largest to smallest. Choose the smallest bitmap
 490   // whose height >= the preferred size.
 491   int largest_index = 0;
 492   for (size_t i = 1; i < bitmaps.size(); ++i) {
 493     if (bitmaps[i].height() < delegate_->PreferredIconSize())
 494       break;
 495     largest_index = i;
 496   }
 497   const SkBitmap& largest = bitmaps[largest_index];
 498   UpdateAppIcon(gfx::Image::CreateFrom1xBitmap(largest));
 499 }
 500
 501 void ShellWindow::OnExtensionIconImageChanged(extensions::IconImage* image) {
 502   DCHECK_EQ(app_icon_image_.get(), image);
 503
 504   UpdateAppIcon(gfx::Image(app_icon_image_->image_skia()));
 505 }
 506
 507 void ShellWindow::UpdateExtensionAppIcon() {
 508   // Avoid using any previous app icons were are being downloaded.
 509   image_loader_ptr_factory_.InvalidateWeakPtrs();
 510
 511   app_icon_image_.reset(new extensions::IconImage(
 512       profile(),
 513       extension(),
 514       extensions::IconsInfo::GetIcons(extension()),
 515       delegate_->PreferredIconSize(),
 516       extensions::IconsInfo::GetDefaultAppIcon(),
 517       this));
 518
 519   // Triggers actual image loading with 1x resources. The 2x resource will
 520   // be handled by IconImage class when requested.
 521   app_icon_image_->image_skia().GetRepresentation(1.0f);
 522 }
 523
 524 void ShellWindow::OnSizeConstraintsChanged() {
 525   native_app_window_->UpdateWindowMinMaxSize();
 526   gfx::Rect bounds = GetClientBounds();
 527   gfx::Size constrained_size = size_constraints_.ClampSize(bounds.size());
 528   if (bounds.size() != constrained_size) {
 529     bounds.set_size(constrained_size);
 530     native_app_window_->SetBounds(bounds);
 531   }
 532   OnNativeWindowChanged();
 533 }
 534
 535 void ShellWindow::CloseContents(WebContents* contents) {
 536   native_app_window_->Close();
 537 }
 538
 539 bool ShellWindow::ShouldSuppressDialogs() {
 540   return true;
 541 }
 542
 543 content::ColorChooser* ShellWindow::OpenColorChooser(WebContents* web_contents,
 544                                                      SkColor initial_color) {
 545   return delegate_->ShowColorChooser(web_contents, initial_color);
 546 }
 547
 548 void ShellWindow::RunFileChooser(WebContents* tab,
 549                                  const content::FileChooserParams& params) {
 550   if (window_type_is_panel()) {
 551     // Panels can't host a file dialog, abort. TODO(stevenjb): allow file
 552     // dialogs to be unhosted but still close with the owning web contents.
 553     // crbug.com/172502.
 554     LOG(WARNING) << "File dialog opened by panel.";
 555     return;
 556   }
 557
 558   delegate_->RunFileChooser(tab, params);
 559 }
 560
 561 bool ShellWindow::IsPopupOrPanel(const WebContents* source) const {
 562   return true;
 563 }
 564
 565 void ShellWindow::MoveContents(WebContents* source, const gfx::Rect& pos) {
 566   native_app_window_->SetBounds(pos);
 567 }
 568
 569 void ShellWindow::NavigationStateChanged(
 570     const content::WebContents* source, unsigned changed_flags) {
 571   if (changed_flags & content::INVALIDATE_TYPE_TITLE)
 572     native_app_window_->UpdateWindowTitle();
 573   else if (changed_flags & content::INVALIDATE_TYPE_TAB)
 574     native_app_window_->UpdateWindowIcon();
 575 }
 576
 577 void ShellWindow::ToggleFullscreenModeForTab(content::WebContents* source,
 578                                              bool enter_fullscreen) {
 579 #if !defined(OS_MACOSX)
 580   // Do not enter fullscreen mode if disallowed by pref.
 581   // TODO(bartfab): Add a test once it becomes possible to simulate a user
 582   // gesture. http://crbug.com/174178
 583   if (enter_fullscreen &&
 584       !profile()->GetPrefs()->GetBoolean(prefs::kAppFullscreenAllowed)) {
 585     return;
 586   }
 587 #endif
 588
 589   if (!IsExtensionWithPermissionOrSuggestInConsole(
 590       APIPermission::kFullscreen,
 591       extension_,
 592       source->GetRenderViewHost())) {
 593     return;
 594   }
 595
 596   if (enter_fullscreen)
 597     fullscreen_types_ |= FULLSCREEN_TYPE_HTML_API;
 598   else
 599     fullscreen_types_ &= ~FULLSCREEN_TYPE_HTML_API;
 600   GetBaseWindow()->SetFullscreen(fullscreen_types_);
 601 }
 602
 603 bool ShellWindow::IsFullscreenForTabOrPending(
 604     const content::WebContents* source) const {
 605   return ((fullscreen_types_ & FULLSCREEN_TYPE_HTML_API) != 0);
 606 }
 607
 608 void ShellWindow::Observe(int type,
 609                           const content::NotificationSource& source,
 610                           const content::NotificationDetails& details) {
 611   switch (type) {
 612     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
 613       const extensions::Extension* unloaded_extension =
 614           content::Details<extensions::UnloadedExtensionInfo>(
 615               details)->extension;
 616       if (extension_ == unloaded_extension)
 617         native_app_window_->Close();
 618       break;
 619     }
 620     case chrome::NOTIFICATION_APP_TERMINATING:
 621       native_app_window_->Close();
 622       break;
 623     default:
 624       NOTREACHED() << "Received unexpected notification";
 625   }
 626 }
 627
 628 void ShellWindow::SetWebContentsBlocked(content::WebContents* web_contents,
 629                                         bool blocked) {
 630   delegate_->SetWebContentsBlocked(web_contents, blocked);
 631 }
 632
 633 bool ShellWindow::IsWebContentsVisible(content::WebContents* web_contents) {
 634   return delegate_->IsWebContentsVisible(web_contents);
 635 }
 636
 637 extensions::ActiveTabPermissionGranter*
 638     ShellWindow::GetActiveTabPermissionGranter() {
 639   // Shell windows don't support the activeTab permission.
 640   return NULL;
 641 }
 642
 643 WebContentsModalDialogHost* ShellWindow::GetWebContentsModalDialogHost() {
 644   return native_app_window_.get();
 645 }
 646
 647 void ShellWindow::AddMessageToDevToolsConsole(ConsoleMessageLevel level,
 648                                               const std::string& message) {
 649   content::RenderViewHost* rvh = web_contents()->GetRenderViewHost();
 650   rvh->Send(new ExtensionMsg_AddMessageToConsole(
 651       rvh->GetRoutingID(), level, message));
 652 }
 653
 654 void ShellWindow::SaveWindowPosition() {
 655   if (window_key_.empty())
 656     return;
 657   if (!native_app_window_)
 658     return;
 659
 660   ShellWindowGeometryCache* cache = ShellWindowGeometryCache::Get(profile());
 661
 662   gfx::Rect bounds = native_app_window_->GetRestoredBounds();
 663   bounds.Inset(native_app_window_->GetFrameInsets());
 664   gfx::Rect screen_bounds =
 665       gfx::Screen::GetNativeScreen()->GetDisplayMatching(bounds).work_area();
 666   ui::WindowShowState window_state = native_app_window_->GetRestoredState();
 667   cache->SaveGeometry(extension()->id(),
 668                       window_key_,
 669                       bounds,
 670                       screen_bounds,
 671                       window_state);
 672 }
 673
 674 void ShellWindow::AdjustBoundsToBeVisibleOnScreen(
 675     const gfx::Rect& cached_bounds,
 676     const gfx::Rect& cached_screen_bounds,
 677     const gfx::Rect& current_screen_bounds,
 678     const gfx::Size& minimum_size,
 679     gfx::Rect* bounds) const {
 680   *bounds = cached_bounds;
 681
 682   // Reposition and resize the bounds if the cached_screen_bounds is different
 683   // from the current screen bounds and the current screen bounds doesn't
 684   // completely contain the bounds.
 685   if (cached_screen_bounds != current_screen_bounds &&
 686       !current_screen_bounds.Contains(cached_bounds)) {
 687     bounds->set_width(
 688         std::max(minimum_size.width(),
 689                  std::min(bounds->width(), current_screen_bounds.width())));
 690     bounds->set_height(
 691         std::max(minimum_size.height(),
 692                  std::min(bounds->height(), current_screen_bounds.height())));
 693     bounds->set_x(
 694         std::max(current_screen_bounds.x(),
 695                  std::min(bounds->x(),
 696                           current_screen_bounds.right() - bounds->width())));
 697     bounds->set_y(
 698         std::max(current_screen_bounds.y(),
 699                  std::min(bounds->y(),
 700                           current_screen_bounds.bottom() - bounds->height())));
 701   }
 702 }
 703
 704 ShellWindow::CreateParams ShellWindow::LoadDefaultsAndConstrain(
 705     CreateParams params) const {
 706   if (params.bounds.width() == 0)
 707     params.bounds.set_width(kDefaultWidth);
 708   if (params.bounds.height() == 0)
 709     params.bounds.set_height(kDefaultHeight);
 710
 711   // If left and top are left undefined, the native shell window will center
 712   // the window on the main screen in a platform-defined manner.
 713
 714   // Load cached state if it exists.
 715   if (!params.window_key.empty()) {
 716     ShellWindowGeometryCache* cache = ShellWindowGeometryCache::Get(profile());
 717
 718     gfx::Rect cached_bounds;
 719     gfx::Rect cached_screen_bounds;
 720     ui::WindowShowState cached_state = ui::SHOW_STATE_DEFAULT;
 721     if (cache->GetGeometry(extension()->id(), params.window_key,
 722                            &cached_bounds, &cached_screen_bounds,
 723                            &cached_state)) {
 724       // App window has cached screen bounds, make sure it fits on screen in
 725       // case the screen resolution changed.
 726       gfx::Screen* screen = gfx::Screen::GetNativeScreen();
 727       gfx::Display display = screen->GetDisplayMatching(cached_bounds);
 728       gfx::Rect current_screen_bounds = display.work_area();
 729       AdjustBoundsToBeVisibleOnScreen(cached_bounds,
 730                                       cached_screen_bounds,
 731                                       current_screen_bounds,
 732                                       params.minimum_size,
 733                                       &params.bounds);
 734       params.state = cached_state;
 735     }
 736   }
 737
 738   SizeConstraints size_constraints(params.minimum_size, params.maximum_size);
 739   params.bounds.set_size(size_constraints.ClampSize(params.bounds.size()));
 740   params.minimum_size = size_constraints.GetMinimumSize();
 741   params.maximum_size = size_constraints.GetMaximumSize();
 742
 743   return params;
 744 }
 745
 746 // static
 747 SkRegion* ShellWindow::RawDraggableRegionsToSkRegion(
 748       const std::vector<extensions::DraggableRegion>& regions) {
 749   SkRegion* sk_region = new SkRegion;
 750   for (std::vector<extensions::DraggableRegion>::const_iterator iter =
 751            regions.begin();
 752        iter != regions.end(); ++iter) {
 753     const extensions::DraggableRegion& region = *iter;
 754     sk_region->op(
 755         region.bounds.x(),
 756         region.bounds.y(),
 757         region.bounds.right(),
 758         region.bounds.bottom(),
 759         region.draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
 760   }
 761   return sk_region;
 762 }
 763
 764 }  // namespace apps