ui/views/widget/widget.cc

   1 // Copyright (c) 2012 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 "ui/views/widget/widget.h"
   6
   7 #include "base/debug/trace_event.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "ui/base/cursor/cursor.h"
  12 #include "ui/base/default_theme_provider.h"
  13 #include "ui/base/hit_test.h"
  14 #include "ui/base/l10n/l10n_font_util.h"
  15 #include "ui/base/resource/resource_bundle.h"
  16 #include "ui/compositor/compositor.h"
  17 #include "ui/compositor/layer.h"
  18 #include "ui/events/event.h"
  19 #include "ui/gfx/image/image_skia.h"
  20 #include "ui/gfx/screen.h"
  21 #include "ui/views/controls/menu/menu_controller.h"
  22 #include "ui/views/focus/focus_manager.h"
  23 #include "ui/views/focus/focus_manager_factory.h"
  24 #include "ui/views/focus/view_storage.h"
  25 #include "ui/views/focus/widget_focus_manager.h"
  26 #include "ui/views/ime/input_method.h"
  27 #include "ui/views/views_delegate.h"
  28 #include "ui/views/widget/native_widget_private.h"
  29 #include "ui/views/widget/root_view.h"
  30 #include "ui/views/widget/tooltip_manager.h"
  31 #include "ui/views/widget/widget_delegate.h"
  32 #include "ui/views/widget/widget_deletion_observer.h"
  33 #include "ui/views/widget/widget_observer.h"
  34 #include "ui/views/widget/widget_removals_observer.h"
  35 #include "ui/views/window/custom_frame_view.h"
  36 #include "ui/views/window/dialog_delegate.h"
  37
  38 namespace views {
  39
  40 namespace {
  41
  42 // If |view| has a layer the layer is added to |layers|. Else this recurses
  43 // through the children. This is used to build a list of the layers created by
  44 // views that are direct children of the Widgets layer.
  45 void BuildRootLayers(View* view, std::vector<ui::Layer*>* layers) {
  46   if (view->layer()) {
  47     layers->push_back(view->layer());
  48   } else {
  49     for (int i = 0; i < view->child_count(); ++i)
  50       BuildRootLayers(view->child_at(i), layers);
  51   }
  52 }
  53
  54 // Create a native widget implementation.
  55 // First, use the supplied one if non-NULL.
  56 // Finally, make a default one.
  57 NativeWidget* CreateNativeWidget(NativeWidget* native_widget,
  58                                  internal::NativeWidgetDelegate* delegate) {
  59   if (!native_widget) {
  60     native_widget =
  61         internal::NativeWidgetPrivate::CreateNativeWidget(delegate);
  62   }
  63   return native_widget;
  64 }
  65
  66 }  // namespace
  67
  68 // A default implementation of WidgetDelegate, used by Widget when no
  69 // WidgetDelegate is supplied.
  70 class DefaultWidgetDelegate : public WidgetDelegate {
  71  public:
  72   explicit DefaultWidgetDelegate(Widget* widget) : widget_(widget) {
  73   }
  74   virtual ~DefaultWidgetDelegate() {}
  75
  76   // Overridden from WidgetDelegate:
  77   virtual void DeleteDelegate() OVERRIDE {
  78     delete this;
  79   }
  80   virtual Widget* GetWidget() OVERRIDE {
  81     return widget_;
  82   }
  83   virtual const Widget* GetWidget() const OVERRIDE {
  84     return widget_;
  85   }
  86   virtual bool ShouldAdvanceFocusToTopLevelWidget() const OVERRIDE {
  87     // In most situations where a Widget is used without a delegate the Widget
  88     // is used as a container, so that we want focus to advance to the top-level
  89     // widget. A good example of this is the find bar.
  90     return true;
  91   }
  92
  93  private:
  94   Widget* widget_;
  95
  96   DISALLOW_COPY_AND_ASSIGN(DefaultWidgetDelegate);
  97 };
  98
  99 ////////////////////////////////////////////////////////////////////////////////
 100 // Widget, InitParams:
 101
 102 Widget::InitParams::InitParams()
 103     : type(TYPE_WINDOW),
 104       delegate(NULL),
 105       child(false),
 106       opacity(INFER_OPACITY),
 107       accept_events(true),
 108       activatable(ACTIVATABLE_DEFAULT),
 109       keep_on_top(false),
 110       visible_on_all_workspaces(false),
 111       ownership(NATIVE_WIDGET_OWNS_WIDGET),
 112       mirror_origin_in_rtl(false),
 113       shadow_type(SHADOW_TYPE_DEFAULT),
 114       remove_standard_frame(false),
 115       use_system_default_icon(false),
 116       show_state(ui::SHOW_STATE_DEFAULT),
 117       double_buffer(false),
 118       parent(NULL),
 119       native_widget(NULL),
 120       desktop_window_tree_host(NULL),
 121       layer_type(aura::WINDOW_LAYER_TEXTURED),
 122       context(NULL),
 123       force_show_in_taskbar(false) {
 124 }
 125
 126 Widget::InitParams::InitParams(Type type)
 127     : type(type),
 128       delegate(NULL),
 129       child(false),
 130       opacity(INFER_OPACITY),
 131       accept_events(true),
 132       activatable(ACTIVATABLE_DEFAULT),
 133       keep_on_top(type == TYPE_MENU || type == TYPE_DRAG),
 134       visible_on_all_workspaces(false),
 135       ownership(NATIVE_WIDGET_OWNS_WIDGET),
 136       mirror_origin_in_rtl(false),
 137       shadow_type(SHADOW_TYPE_DEFAULT),
 138       remove_standard_frame(false),
 139       use_system_default_icon(false),
 140       show_state(ui::SHOW_STATE_DEFAULT),
 141       double_buffer(false),
 142       parent(NULL),
 143       native_widget(NULL),
 144       desktop_window_tree_host(NULL),
 145       layer_type(aura::WINDOW_LAYER_TEXTURED),
 146       context(NULL),
 147       force_show_in_taskbar(false) {
 148 }
 149
 150 Widget::InitParams::~InitParams() {
 151 }
 152
 153 ////////////////////////////////////////////////////////////////////////////////
 154 // Widget, public:
 155
 156 Widget::Widget()
 157     : native_widget_(NULL),
 158       widget_delegate_(NULL),
 159       non_client_view_(NULL),
 160       dragged_view_(NULL),
 161       ownership_(InitParams::NATIVE_WIDGET_OWNS_WIDGET),
 162       is_secondary_widget_(true),
 163       frame_type_(FRAME_TYPE_DEFAULT),
 164       disable_inactive_rendering_(false),
 165       widget_closed_(false),
 166       saved_show_state_(ui::SHOW_STATE_DEFAULT),
 167       focus_on_creation_(true),
 168       is_top_level_(false),
 169       native_widget_initialized_(false),
 170       native_widget_destroyed_(false),
 171       is_mouse_button_pressed_(false),
 172       ignore_capture_loss_(false),
 173       last_mouse_event_was_move_(false),
 174       auto_release_capture_(true),
 175       root_layers_dirty_(false),
 176       movement_disabled_(false),
 177       observer_manager_(this) {
 178 }
 179
 180 Widget::~Widget() {
 181   DestroyRootView();
 182   if (ownership_ == InitParams::WIDGET_OWNS_NATIVE_WIDGET) {
 183     delete native_widget_;
 184   } else {
 185     DCHECK(native_widget_destroyed_)
 186         << "Destroying a widget with a live native widget. "
 187         << "Widget probably should use WIDGET_OWNS_NATIVE_WIDGET ownership.";
 188   }
 189 }
 190
 191 // static
 192 Widget* Widget::CreateWindow(WidgetDelegate* delegate) {
 193   return CreateWindowWithBounds(delegate, gfx::Rect());
 194 }
 195
 196 // static
 197 Widget* Widget::CreateWindowWithBounds(WidgetDelegate* delegate,
 198                                        const gfx::Rect& bounds) {
 199   Widget* widget = new Widget;
 200   Widget::InitParams params;
 201   params.bounds = bounds;
 202   params.delegate = delegate;
 203   widget->Init(params);
 204   return widget;
 205 }
 206
 207 // static
 208 Widget* Widget::CreateWindowWithParent(WidgetDelegate* delegate,
 209                                        gfx::NativeView parent) {
 210   return CreateWindowWithParentAndBounds(delegate, parent, gfx::Rect());
 211 }
 212
 213 // static
 214 Widget* Widget::CreateWindowWithParentAndBounds(WidgetDelegate* delegate,
 215                                                 gfx::NativeView parent,
 216                                                 const gfx::Rect& bounds) {
 217   Widget* widget = new Widget;
 218   Widget::InitParams params;
 219   params.delegate = delegate;
 220   params.parent = parent;
 221   params.bounds = bounds;
 222   widget->Init(params);
 223   return widget;
 224 }
 225
 226 // static
 227 Widget* Widget::CreateWindowWithContext(WidgetDelegate* delegate,
 228                                         gfx::NativeWindow context) {
 229   return CreateWindowWithContextAndBounds(delegate, context, gfx::Rect());
 230 }
 231
 232 // static
 233 Widget* Widget::CreateWindowWithContextAndBounds(WidgetDelegate* delegate,
 234                                                  gfx::NativeWindow context,
 235                                                  const gfx::Rect& bounds) {
 236   Widget* widget = new Widget;
 237   Widget::InitParams params;
 238   params.delegate = delegate;
 239   params.context = context;
 240   params.bounds = bounds;
 241   widget->Init(params);
 242   return widget;
 243 }
 244
 245 // static
 246 Widget* Widget::GetWidgetForNativeView(gfx::NativeView native_view) {
 247   internal::NativeWidgetPrivate* native_widget =
 248       internal::NativeWidgetPrivate::GetNativeWidgetForNativeView(native_view);
 249   return native_widget ? native_widget->GetWidget() : NULL;
 250 }
 251
 252 // static
 253 Widget* Widget::GetWidgetForNativeWindow(gfx::NativeWindow native_window) {
 254   internal::NativeWidgetPrivate* native_widget =
 255       internal::NativeWidgetPrivate::GetNativeWidgetForNativeWindow(
 256           native_window);
 257   return native_widget ? native_widget->GetWidget() : NULL;
 258 }
 259
 260 // static
 261 Widget* Widget::GetTopLevelWidgetForNativeView(gfx::NativeView native_view) {
 262   internal::NativeWidgetPrivate* native_widget =
 263       internal::NativeWidgetPrivate::GetTopLevelNativeWidget(native_view);
 264   return native_widget ? native_widget->GetWidget() : NULL;
 265 }
 266
 267
 268 // static
 269 void Widget::GetAllChildWidgets(gfx::NativeView native_view,
 270                                 Widgets* children) {
 271   internal::NativeWidgetPrivate::GetAllChildWidgets(native_view, children);
 272 }
 273
 274 // static
 275 void Widget::GetAllOwnedWidgets(gfx::NativeView native_view,
 276                                 Widgets* owned) {
 277   internal::NativeWidgetPrivate::GetAllOwnedWidgets(native_view, owned);
 278 }
 279
 280 // static
 281 void Widget::ReparentNativeView(gfx::NativeView native_view,
 282                                 gfx::NativeView new_parent) {
 283   internal::NativeWidgetPrivate::ReparentNativeView(native_view, new_parent);
 284 }
 285
 286 // static
 287 int Widget::GetLocalizedContentsWidth(int col_resource_id) {
 288   return ui::GetLocalizedContentsWidthForFont(col_resource_id,
 289       ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont));
 290 }
 291
 292 // static
 293 int Widget::GetLocalizedContentsHeight(int row_resource_id) {
 294   return ui::GetLocalizedContentsHeightForFont(row_resource_id,
 295       ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont));
 296 }
 297
 298 // static
 299 gfx::Size Widget::GetLocalizedContentsSize(int col_resource_id,
 300                                            int row_resource_id) {
 301   return gfx::Size(GetLocalizedContentsWidth(col_resource_id),
 302                    GetLocalizedContentsHeight(row_resource_id));
 303 }
 304
 305 // static
 306 bool Widget::RequiresNonClientView(InitParams::Type type) {
 307   return type == InitParams::TYPE_WINDOW ||
 308          type == InitParams::TYPE_PANEL ||
 309          type == InitParams::TYPE_BUBBLE;
 310 }
 311
 312 void Widget::Init(const InitParams& in_params) {
 313   TRACE_EVENT0("views", "Widget::Init");
 314   InitParams params = in_params;
 315
 316   params.child |= (params.type == InitParams::TYPE_CONTROL);
 317   is_top_level_ = !params.child;
 318
 319   if (params.opacity == views::Widget::InitParams::INFER_OPACITY &&
 320       params.type != views::Widget::InitParams::TYPE_WINDOW &&
 321       params.type != views::Widget::InitParams::TYPE_PANEL)
 322     params.opacity = views::Widget::InitParams::OPAQUE_WINDOW;
 323
 324   if (ViewsDelegate::views_delegate)
 325     ViewsDelegate::views_delegate->OnBeforeWidgetInit(&params, this);
 326
 327   if (params.opacity == views::Widget::InitParams::INFER_OPACITY)
 328     params.opacity = views::Widget::InitParams::OPAQUE_WINDOW;
 329
 330   bool can_activate = false;
 331   if (params.activatable != InitParams::ACTIVATABLE_DEFAULT) {
 332     can_activate = (params.activatable == InitParams::ACTIVATABLE_YES);
 333   } else if (params.type != InitParams::TYPE_CONTROL &&
 334              params.type != InitParams::TYPE_POPUP &&
 335              params.type != InitParams::TYPE_MENU &&
 336              params.type != InitParams::TYPE_TOOLTIP &&
 337              params.type != InitParams::TYPE_DRAG) {
 338     can_activate = true;
 339     params.activatable = InitParams::ACTIVATABLE_YES;
 340   } else {
 341     can_activate = false;
 342     params.activatable = InitParams::ACTIVATABLE_NO;
 343   }
 344
 345   widget_delegate_ = params.delegate ?
 346       params.delegate : new DefaultWidgetDelegate(this);
 347   widget_delegate_->set_can_activate(can_activate);
 348
 349   ownership_ = params.ownership;
 350   native_widget_ = CreateNativeWidget(params.native_widget, this)->
 351                    AsNativeWidgetPrivate();
 352   root_view_.reset(CreateRootView());
 353   default_theme_provider_.reset(new ui::DefaultThemeProvider);
 354   if (params.type == InitParams::TYPE_MENU) {
 355     is_mouse_button_pressed_ =
 356         internal::NativeWidgetPrivate::IsMouseButtonDown();
 357   }
 358   native_widget_->InitNativeWidget(params);
 359   if (RequiresNonClientView(params.type)) {
 360     non_client_view_ = new NonClientView;
 361     non_client_view_->SetFrameView(CreateNonClientFrameView());
 362     // Create the ClientView, add it to the NonClientView and add the
 363     // NonClientView to the RootView. This will cause everything to be parented.
 364     non_client_view_->set_client_view(widget_delegate_->CreateClientView(this));
 365     non_client_view_->SetOverlayView(widget_delegate_->CreateOverlayView());
 366     SetContentsView(non_client_view_);
 367     // Initialize the window's title before setting the window's initial bounds;
 368     // the frame view's preferred height may depend on the presence of a title.
 369     UpdateWindowTitle();
 370     non_client_view_->ResetWindowControls();
 371     SetInitialBounds(params.bounds);
 372     if (params.show_state == ui::SHOW_STATE_MAXIMIZED)
 373       Maximize();
 374     else if (params.show_state == ui::SHOW_STATE_MINIMIZED)
 375       Minimize();
 376   } else if (params.delegate) {
 377     SetContentsView(params.delegate->GetContentsView());
 378     SetInitialBoundsForFramelessWindow(params.bounds);
 379   }
 380   // This must come after SetContentsView() or it might not be able to find
 381   // the correct NativeTheme (on Linux). See http://crbug.com/384492
 382   observer_manager_.Add(GetNativeTheme());
 383   native_widget_initialized_ = true;
 384 }
 385
 386 // Unconverted methods (see header) --------------------------------------------
 387
 388 gfx::NativeView Widget::GetNativeView() const {
 389   return native_widget_->GetNativeView();
 390 }
 391
 392 gfx::NativeWindow Widget::GetNativeWindow() const {
 393   return native_widget_->GetNativeWindow();
 394 }
 395
 396 void Widget::AddObserver(WidgetObserver* observer) {
 397   observers_.AddObserver(observer);
 398 }
 399
 400 void Widget::RemoveObserver(WidgetObserver* observer) {
 401   observers_.RemoveObserver(observer);
 402 }
 403
 404 bool Widget::HasObserver(WidgetObserver* observer) {
 405   return observers_.HasObserver(observer);
 406 }
 407
 408 void Widget::AddRemovalsObserver(WidgetRemovalsObserver* observer) {
 409   removals_observers_.AddObserver(observer);
 410 }
 411
 412 void Widget::RemoveRemovalsObserver(WidgetRemovalsObserver* observer) {
 413   removals_observers_.RemoveObserver(observer);
 414 }
 415
 416 bool Widget::HasRemovalsObserver(WidgetRemovalsObserver* observer) {
 417   return removals_observers_.HasObserver(observer);
 418 }
 419
 420 bool Widget::GetAccelerator(int cmd_id, ui::Accelerator* accelerator) const {
 421   return false;
 422 }
 423
 424 void Widget::ViewHierarchyChanged(
 425     const View::ViewHierarchyChangedDetails& details) {
 426   if (!details.is_add) {
 427     if (details.child == dragged_view_)
 428       dragged_view_ = NULL;
 429     FocusManager* focus_manager = GetFocusManager();
 430     if (focus_manager)
 431       focus_manager->ViewRemoved(details.child);
 432     ViewStorage::GetInstance()->ViewRemoved(details.child);
 433     native_widget_->ViewRemoved(details.child);
 434   }
 435 }
 436
 437 void Widget::NotifyNativeViewHierarchyWillChange() {
 438   FocusManager* focus_manager = GetFocusManager();
 439   // We are being removed from a window hierarchy.  Treat this as
 440   // the root_view_ being removed.
 441   if (focus_manager)
 442     focus_manager->ViewRemoved(root_view_.get());
 443 }
 444
 445 void Widget::NotifyNativeViewHierarchyChanged() {
 446   root_view_->NotifyNativeViewHierarchyChanged();
 447 }
 448
 449 void Widget::NotifyWillRemoveView(View* view) {
 450     FOR_EACH_OBSERVER(WidgetRemovalsObserver,
 451                       removals_observers_,
 452                       OnWillRemoveView(this, view));
 453 }
 454
 455 // Converted methods (see header) ----------------------------------------------
 456
 457 Widget* Widget::GetTopLevelWidget() {
 458   return const_cast<Widget*>(
 459       static_cast<const Widget*>(this)->GetTopLevelWidget());
 460 }
 461
 462 const Widget* Widget::GetTopLevelWidget() const {
 463   // GetTopLevelNativeWidget doesn't work during destruction because
 464   // property is gone after gobject gets deleted. Short circuit here
 465   // for toplevel so that InputMethod can remove itself from
 466   // focus manager.
 467   return is_top_level() ? this : native_widget_->GetTopLevelWidget();
 468 }
 469
 470 void Widget::SetContentsView(View* view) {
 471   // Do not SetContentsView() again if it is already set to the same view.
 472   if (view == GetContentsView())
 473     return;
 474   root_view_->SetContentsView(view);
 475   if (non_client_view_ != view) {
 476     // |non_client_view_| can only be non-NULL here if RequiresNonClientView()
 477     // was true when the widget was initialized. Creating widgets with non
 478     // client views and then setting the contents view can cause subtle
 479     // problems on Windows, where the native widget thinks there is still a
 480     // |non_client_view_|. If you get this error, either use a different type
 481     // when initializing the widget, or don't call SetContentsView().
 482     DCHECK(!non_client_view_);
 483     non_client_view_ = NULL;
 484   }
 485 }
 486
 487 View* Widget::GetContentsView() {
 488   return root_view_->GetContentsView();
 489 }
 490
 491 gfx::Rect Widget::GetWindowBoundsInScreen() const {
 492   return native_widget_->GetWindowBoundsInScreen();
 493 }
 494
 495 gfx::Rect Widget::GetClientAreaBoundsInScreen() const {
 496   return native_widget_->GetClientAreaBoundsInScreen();
 497 }
 498
 499 gfx::Rect Widget::GetRestoredBounds() const {
 500   return native_widget_->GetRestoredBounds();
 501 }
 502
 503 void Widget::SetBounds(const gfx::Rect& bounds) {
 504   native_widget_->SetBounds(bounds);
 505 }
 506
 507 void Widget::SetSize(const gfx::Size& size) {
 508   native_widget_->SetSize(size);
 509 }
 510
 511 void Widget::CenterWindow(const gfx::Size& size) {
 512   native_widget_->CenterWindow(size);
 513 }
 514
 515 void Widget::SetBoundsConstrained(const gfx::Rect& bounds) {
 516   gfx::Rect work_area =
 517       gfx::Screen::GetScreenFor(GetNativeView())->GetDisplayNearestPoint(
 518           bounds.origin()).work_area();
 519   if (work_area.IsEmpty()) {
 520     SetBounds(bounds);
 521   } else {
 522     // Inset the work area slightly.
 523     work_area.Inset(10, 10, 10, 10);
 524     work_area.AdjustToFit(bounds);
 525     SetBounds(work_area);
 526   }
 527 }
 528
 529 void Widget::SetVisibilityChangedAnimationsEnabled(bool value) {
 530   native_widget_->SetVisibilityChangedAnimationsEnabled(value);
 531 }
 532
 533 Widget::MoveLoopResult Widget::RunMoveLoop(
 534     const gfx::Vector2d& drag_offset,
 535     MoveLoopSource source,
 536     MoveLoopEscapeBehavior escape_behavior) {
 537   return native_widget_->RunMoveLoop(drag_offset, source, escape_behavior);
 538 }
 539
 540 void Widget::EndMoveLoop() {
 541   native_widget_->EndMoveLoop();
 542 }
 543
 544 void Widget::StackAboveWidget(Widget* widget) {
 545   native_widget_->StackAbove(widget->GetNativeView());
 546 }
 547
 548 void Widget::StackAbove(gfx::NativeView native_view) {
 549   native_widget_->StackAbove(native_view);
 550 }
 551
 552 void Widget::StackAtTop() {
 553   native_widget_->StackAtTop();
 554 }
 555
 556 void Widget::StackBelow(gfx::NativeView native_view) {
 557   native_widget_->StackBelow(native_view);
 558 }
 559
 560 void Widget::SetShape(gfx::NativeRegion shape) {
 561   native_widget_->SetShape(shape);
 562 }
 563
 564 void Widget::Close() {
 565   if (widget_closed_) {
 566     // It appears we can hit this code path if you close a modal dialog then
 567     // close the last browser before the destructor is hit, which triggers
 568     // invoking Close again.
 569     return;
 570   }
 571
 572   bool can_close = true;
 573   if (non_client_view_)
 574     can_close = non_client_view_->CanClose();
 575   if (can_close) {
 576     SaveWindowPlacement();
 577
 578     // During tear-down the top-level focus manager becomes unavailable to
 579     // GTK tabbed panes and their children, so normal deregistration via
 580     // |FormManager::ViewRemoved()| calls are fouled.  We clear focus here
 581     // to avoid these redundant steps and to avoid accessing deleted views
 582     // that may have been in focus.
 583     if (is_top_level() && focus_manager_.get())
 584       focus_manager_->SetFocusedView(NULL);
 585
 586     FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetClosing(this));
 587     native_widget_->Close();
 588     widget_closed_ = true;
 589   }
 590 }
 591
 592 void Widget::CloseNow() {
 593   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetClosing(this));
 594   native_widget_->CloseNow();
 595 }
 596
 597 bool Widget::IsClosed() const {
 598   return widget_closed_;
 599 }
 600
 601 void Widget::Show() {
 602   TRACE_EVENT0("views", "Widget::Show");
 603   if (non_client_view_) {
 604     // While initializing, the kiosk mode will go to full screen before the
 605     // widget gets shown. In that case we stay in full screen mode, regardless
 606     // of the |saved_show_state_| member.
 607     if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED &&
 608         !initial_restored_bounds_.IsEmpty() &&
 609         !IsFullscreen()) {
 610       native_widget_->ShowMaximizedWithBounds(initial_restored_bounds_);
 611     } else {
 612       native_widget_->ShowWithWindowState(
 613           IsFullscreen() ? ui::SHOW_STATE_FULLSCREEN : saved_show_state_);
 614     }
 615     // |saved_show_state_| only applies the first time the window is shown.
 616     // If we don't reset the value the window may be shown maximized every time
 617     // it is subsequently shown after being hidden.
 618     saved_show_state_ = ui::SHOW_STATE_NORMAL;
 619   } else {
 620     CanActivate()
 621         ? native_widget_->Show()
 622         : native_widget_->ShowWithWindowState(ui::SHOW_STATE_INACTIVE);
 623   }
 624 }
 625
 626 void Widget::Hide() {
 627   native_widget_->Hide();
 628 }
 629
 630 void Widget::ShowInactive() {
 631   // If this gets called with saved_show_state_ == ui::SHOW_STATE_MAXIMIZED,
 632   // call SetBounds()with the restored bounds to set the correct size. This
 633   // normally should not happen, but if it does we should avoid showing unsized
 634   // windows.
 635   if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED &&
 636       !initial_restored_bounds_.IsEmpty()) {
 637     SetBounds(initial_restored_bounds_);
 638     saved_show_state_ = ui::SHOW_STATE_NORMAL;
 639   }
 640   native_widget_->ShowWithWindowState(ui::SHOW_STATE_INACTIVE);
 641 }
 642
 643 void Widget::Activate() {
 644   native_widget_->Activate();
 645 }
 646
 647 void Widget::Deactivate() {
 648   native_widget_->Deactivate();
 649 }
 650
 651 bool Widget::IsActive() const {
 652   return native_widget_->IsActive();
 653 }
 654
 655 void Widget::DisableInactiveRendering() {
 656   SetInactiveRenderingDisabled(true);
 657 }
 658
 659 void Widget::SetAlwaysOnTop(bool on_top) {
 660   native_widget_->SetAlwaysOnTop(on_top);
 661 }
 662
 663 bool Widget::IsAlwaysOnTop() const {
 664   return native_widget_->IsAlwaysOnTop();
 665 }
 666
 667 void Widget::SetVisibleOnAllWorkspaces(bool always_visible) {
 668   native_widget_->SetVisibleOnAllWorkspaces(always_visible);
 669 }
 670
 671 void Widget::Maximize() {
 672   native_widget_->Maximize();
 673 }
 674
 675 void Widget::Minimize() {
 676   native_widget_->Minimize();
 677 }
 678
 679 void Widget::Restore() {
 680   native_widget_->Restore();
 681 }
 682
 683 bool Widget::IsMaximized() const {
 684   return native_widget_->IsMaximized();
 685 }
 686
 687 bool Widget::IsMinimized() const {
 688   return native_widget_->IsMinimized();
 689 }
 690
 691 void Widget::SetFullscreen(bool fullscreen) {
 692   if (IsFullscreen() == fullscreen)
 693     return;
 694
 695   native_widget_->SetFullscreen(fullscreen);
 696
 697   if (non_client_view_)
 698     non_client_view_->Layout();
 699 }
 700
 701 bool Widget::IsFullscreen() const {
 702   return native_widget_->IsFullscreen();
 703 }
 704
 705 void Widget::SetOpacity(unsigned char opacity) {
 706   native_widget_->SetOpacity(opacity);
 707 }
 708
 709 void Widget::SetUseDragFrame(bool use_drag_frame) {
 710   native_widget_->SetUseDragFrame(use_drag_frame);
 711 }
 712
 713 void Widget::FlashFrame(bool flash) {
 714   native_widget_->FlashFrame(flash);
 715 }
 716
 717 View* Widget::GetRootView() {
 718   return root_view_.get();
 719 }
 720
 721 const View* Widget::GetRootView() const {
 722   return root_view_.get();
 723 }
 724
 725 bool Widget::IsVisible() const {
 726   return native_widget_->IsVisible();
 727 }
 728
 729 ui::ThemeProvider* Widget::GetThemeProvider() const {
 730   const Widget* root_widget = GetTopLevelWidget();
 731   if (root_widget && root_widget != this) {
 732     // Attempt to get the theme provider, and fall back to the default theme
 733     // provider if not found.
 734     ui::ThemeProvider* provider = root_widget->GetThemeProvider();
 735     if (provider)
 736       return provider;
 737
 738     provider = root_widget->default_theme_provider_.get();
 739     if (provider)
 740       return provider;
 741   }
 742   return default_theme_provider_.get();
 743 }
 744
 745 const ui::NativeTheme* Widget::GetNativeTheme() const {
 746   return native_widget_->GetNativeTheme();
 747 }
 748
 749 FocusManager* Widget::GetFocusManager() {
 750   Widget* toplevel_widget = GetTopLevelWidget();
 751   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 752 }
 753
 754 const FocusManager* Widget::GetFocusManager() const {
 755   const Widget* toplevel_widget = GetTopLevelWidget();
 756   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 757 }
 758
 759 InputMethod* Widget::GetInputMethod() {
 760   return const_cast<InputMethod*>(
 761       const_cast<const Widget*>(this)->GetInputMethod());
 762 }
 763
 764 const InputMethod* Widget::GetInputMethod() const {
 765   if (is_top_level()) {
 766     if (!input_method_.get())
 767       input_method_ = const_cast<Widget*>(this)->CreateInputMethod().Pass();
 768     return input_method_.get();
 769   } else {
 770     const Widget* toplevel = GetTopLevelWidget();
 771     // If GetTopLevelWidget() returns itself which is not toplevel,
 772     // the widget is detached from toplevel widget.
 773     // TODO(oshima): Fix GetTopLevelWidget() to return NULL
 774     // if there is no toplevel. We probably need to add GetTopMostWidget()
 775     // to replace some use cases.
 776     return (toplevel && toplevel != this) ? toplevel->GetInputMethod() : NULL;
 777   }
 778 }
 779
 780 ui::InputMethod* Widget::GetHostInputMethod() {
 781   return native_widget_private()->GetHostInputMethod();
 782 }
 783
 784 void Widget::RunShellDrag(View* view,
 785                           const ui::OSExchangeData& data,
 786                           const gfx::Point& location,
 787                           int operation,
 788                           ui::DragDropTypes::DragEventSource source) {
 789   dragged_view_ = view;
 790   OnDragWillStart();
 791   native_widget_->RunShellDrag(view, data, location, operation, source);
 792   // If the view is removed during the drag operation, dragged_view_ is set to
 793   // NULL.
 794   if (view && dragged_view_ == view) {
 795     dragged_view_ = NULL;
 796     view->OnDragDone();
 797   }
 798   OnDragComplete();
 799 }
 800
 801 void Widget::SchedulePaintInRect(const gfx::Rect& rect) {
 802   native_widget_->SchedulePaintInRect(rect);
 803 }
 804
 805 void Widget::SetCursor(gfx::NativeCursor cursor) {
 806   native_widget_->SetCursor(cursor);
 807 }
 808
 809 bool Widget::IsMouseEventsEnabled() const {
 810   return native_widget_->IsMouseEventsEnabled();
 811 }
 812
 813 void Widget::SetNativeWindowProperty(const char* name, void* value) {
 814   native_widget_->SetNativeWindowProperty(name, value);
 815 }
 816
 817 void* Widget::GetNativeWindowProperty(const char* name) const {
 818   return native_widget_->GetNativeWindowProperty(name);
 819 }
 820
 821 void Widget::UpdateWindowTitle() {
 822   if (!non_client_view_)
 823     return;
 824
 825   // Update the native frame's text. We do this regardless of whether or not
 826   // the native frame is being used, since this also updates the taskbar, etc.
 827   base::string16 window_title = widget_delegate_->GetWindowTitle();
 828   base::i18n::AdjustStringForLocaleDirection(&window_title);
 829   if (!native_widget_->SetWindowTitle(window_title))
 830     return;
 831   non_client_view_->UpdateWindowTitle();
 832
 833   // If the non-client view is rendering its own title, it'll need to relayout
 834   // now and to get a paint update later on.
 835   non_client_view_->Layout();
 836 }
 837
 838 void Widget::UpdateWindowIcon() {
 839   if (non_client_view_)
 840     non_client_view_->UpdateWindowIcon();
 841   native_widget_->SetWindowIcons(widget_delegate_->GetWindowIcon(),
 842                                  widget_delegate_->GetWindowAppIcon());
 843 }
 844
 845 FocusTraversable* Widget::GetFocusTraversable() {
 846   return static_cast<internal::RootView*>(root_view_.get());
 847 }
 848
 849 void Widget::ThemeChanged() {
 850   root_view_->ThemeChanged();
 851 }
 852
 853 void Widget::LocaleChanged() {
 854   root_view_->LocaleChanged();
 855 }
 856
 857 void Widget::SetFocusTraversableParent(FocusTraversable* parent) {
 858   root_view_->SetFocusTraversableParent(parent);
 859 }
 860
 861 void Widget::SetFocusTraversableParentView(View* parent_view) {
 862   root_view_->SetFocusTraversableParentView(parent_view);
 863 }
 864
 865 void Widget::ClearNativeFocus() {
 866   native_widget_->ClearNativeFocus();
 867 }
 868
 869 NonClientFrameView* Widget::CreateNonClientFrameView() {
 870   NonClientFrameView* frame_view =
 871       widget_delegate_->CreateNonClientFrameView(this);
 872   if (!frame_view)
 873     frame_view = native_widget_->CreateNonClientFrameView();
 874   if (!frame_view && ViewsDelegate::views_delegate) {
 875     frame_view =
 876         ViewsDelegate::views_delegate->CreateDefaultNonClientFrameView(this);
 877   }
 878   if (frame_view)
 879     return frame_view;
 880
 881   CustomFrameView* custom_frame_view = new CustomFrameView;
 882   custom_frame_view->Init(this);
 883   return custom_frame_view;
 884 }
 885
 886 bool Widget::ShouldUseNativeFrame() const {
 887   if (frame_type_ != FRAME_TYPE_DEFAULT)
 888     return frame_type_ == FRAME_TYPE_FORCE_NATIVE;
 889   return native_widget_->ShouldUseNativeFrame();
 890 }
 891
 892 bool Widget::ShouldWindowContentsBeTransparent() const {
 893   return native_widget_->ShouldWindowContentsBeTransparent();
 894 }
 895
 896 void Widget::DebugToggleFrameType() {
 897   if (frame_type_ == FRAME_TYPE_DEFAULT) {
 898     frame_type_ = ShouldUseNativeFrame() ? FRAME_TYPE_FORCE_CUSTOM :
 899         FRAME_TYPE_FORCE_NATIVE;
 900   } else {
 901     frame_type_ = frame_type_ == FRAME_TYPE_FORCE_CUSTOM ?
 902         FRAME_TYPE_FORCE_NATIVE : FRAME_TYPE_FORCE_CUSTOM;
 903   }
 904   FrameTypeChanged();
 905 }
 906
 907 void Widget::FrameTypeChanged() {
 908   native_widget_->FrameTypeChanged();
 909 }
 910
 911 const ui::Compositor* Widget::GetCompositor() const {
 912   return native_widget_->GetCompositor();
 913 }
 914
 915 ui::Compositor* Widget::GetCompositor() {
 916   return native_widget_->GetCompositor();
 917 }
 918
 919 ui::Layer* Widget::GetLayer() {
 920   return native_widget_->GetLayer();
 921 }
 922
 923 void Widget::ReorderNativeViews() {
 924   native_widget_->ReorderNativeViews();
 925 }
 926
 927 void Widget::UpdateRootLayers() {
 928   // Calculate the layers requires traversing the tree, and since nearly any
 929   // mutation of the tree can trigger this call we delay until absolutely
 930   // necessary.
 931   root_layers_dirty_ = true;
 932 }
 933
 934 const NativeWidget* Widget::native_widget() const {
 935   return native_widget_;
 936 }
 937
 938 NativeWidget* Widget::native_widget() {
 939   return native_widget_;
 940 }
 941
 942 void Widget::SetCapture(View* view) {
 943   if (!native_widget_->HasCapture()) {
 944     native_widget_->SetCapture();
 945
 946     // Early return if setting capture was unsuccessful.
 947     if (!native_widget_->HasCapture())
 948       return;
 949   }
 950
 951   if (internal::NativeWidgetPrivate::IsMouseButtonDown())
 952     is_mouse_button_pressed_ = true;
 953   root_view_->SetMouseHandler(view);
 954 }
 955
 956 void Widget::ReleaseCapture() {
 957   if (native_widget_->HasCapture())
 958     native_widget_->ReleaseCapture();
 959 }
 960
 961 bool Widget::HasCapture() {
 962   return native_widget_->HasCapture();
 963 }
 964
 965 TooltipManager* Widget::GetTooltipManager() {
 966   return native_widget_->GetTooltipManager();
 967 }
 968
 969 const TooltipManager* Widget::GetTooltipManager() const {
 970   return native_widget_->GetTooltipManager();
 971 }
 972
 973 gfx::Rect Widget::GetWorkAreaBoundsInScreen() const {
 974   return native_widget_->GetWorkAreaBoundsInScreen();
 975 }
 976
 977 void Widget::SynthesizeMouseMoveEvent() {
 978   last_mouse_event_was_move_ = false;
 979   ui::MouseEvent mouse_event(ui::ET_MOUSE_MOVED,
 980                              last_mouse_event_position_,
 981                              last_mouse_event_position_,
 982                              ui::EF_IS_SYNTHESIZED, 0);
 983   root_view_->OnMouseMoved(mouse_event);
 984 }
 985
 986 void Widget::OnRootViewLayout() {
 987   native_widget_->OnRootViewLayout();
 988 }
 989
 990 bool Widget::IsTranslucentWindowOpacitySupported() const {
 991   return native_widget_->IsTranslucentWindowOpacitySupported();
 992 }
 993
 994 void Widget::OnOwnerClosing() {
 995 }
 996
 997 ////////////////////////////////////////////////////////////////////////////////
 998 // Widget, NativeWidgetDelegate implementation:
 999
1000 bool Widget::IsModal() const {
1001   return widget_delegate_->GetModalType() != ui::MODAL_TYPE_NONE;
1002 }
1003
1004 bool Widget::IsDialogBox() const {
1005   return !!widget_delegate_->AsDialogDelegate();
1006 }
1007
1008 bool Widget::CanActivate() const {
1009   return widget_delegate_->CanActivate();
1010 }
1011
1012 bool Widget::IsInactiveRenderingDisabled() const {
1013   return disable_inactive_rendering_;
1014 }
1015
1016 void Widget::EnableInactiveRendering() {
1017   SetInactiveRenderingDisabled(false);
1018 }
1019
1020 void Widget::OnNativeWidgetActivationChanged(bool active) {
1021   // On windows we may end up here before we've completed initialization (from
1022   // an WM_NCACTIVATE). If that happens the WidgetDelegate likely doesn't know
1023   // the Widget and will crash attempting to access it.
1024   if (!active && native_widget_initialized_)
1025     SaveWindowPlacement();
1026
1027   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1028                     OnWidgetActivationChanged(this, active));
1029
1030   // During window creation, the widget gets focused without activation, and in
1031   // that case, the focus manager cannot set the appropriate text input client
1032   // because the widget is not active.  Thus we have to notify the focus manager
1033   // not only when the focus changes but also when the widget gets activated.
1034   // See crbug.com/377479 for details.
1035   views::FocusManager* focus_manager = GetFocusManager();
1036   if (focus_manager) {
1037     if (active)
1038       focus_manager->FocusTextInputClient(focus_manager->GetFocusedView());
1039     else
1040       focus_manager->BlurTextInputClient(focus_manager->GetFocusedView());
1041   }
1042
1043   if (IsVisible() && non_client_view())
1044     non_client_view()->frame_view()->SchedulePaint();
1045 }
1046
1047 void Widget::OnNativeFocus(gfx::NativeView old_focused_view) {
1048   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(old_focused_view,
1049                                                         GetNativeView());
1050 }
1051
1052 void Widget::OnNativeBlur(gfx::NativeView new_focused_view) {
1053   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(GetNativeView(),
1054                                                         new_focused_view);
1055 }
1056
1057 void Widget::OnNativeWidgetVisibilityChanging(bool visible) {
1058   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1059                     OnWidgetVisibilityChanging(this, visible));
1060 }
1061
1062 void Widget::OnNativeWidgetVisibilityChanged(bool visible) {
1063   View* root = GetRootView();
1064   if (root)
1065     root->PropagateVisibilityNotifications(root, visible);
1066   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1067                     OnWidgetVisibilityChanged(this, visible));
1068   if (GetCompositor() && root && root->layer())
1069     root->layer()->SetVisible(visible);
1070 }
1071
1072 void Widget::OnNativeWidgetCreated(bool desktop_widget) {
1073   if (is_top_level())
1074     focus_manager_.reset(FocusManagerFactory::Create(this, desktop_widget));
1075
1076   native_widget_->InitModalType(widget_delegate_->GetModalType());
1077
1078   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetCreated(this));
1079 }
1080
1081 void Widget::OnNativeWidgetDestroying() {
1082   // Tell the focus manager (if any) that root_view is being removed
1083   // in case that the focused view is under this root view.
1084   if (GetFocusManager())
1085     GetFocusManager()->ViewRemoved(root_view_.get());
1086   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetDestroying(this));
1087   if (non_client_view_)
1088     non_client_view_->WindowClosing();
1089   widget_delegate_->WindowClosing();
1090 }
1091
1092 void Widget::OnNativeWidgetDestroyed() {
1093   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetDestroyed(this));
1094   widget_delegate_->DeleteDelegate();
1095   widget_delegate_ = NULL;
1096   native_widget_destroyed_ = true;
1097 }
1098
1099 gfx::Size Widget::GetMinimumSize() const {
1100   return non_client_view_ ? non_client_view_->GetMinimumSize() : gfx::Size();
1101 }
1102
1103 gfx::Size Widget::GetMaximumSize() const {
1104   return non_client_view_ ? non_client_view_->GetMaximumSize() : gfx::Size();
1105 }
1106
1107 void Widget::OnNativeWidgetMove() {
1108   widget_delegate_->OnWidgetMove();
1109   View* root = GetRootView();
1110   if (root && root->GetFocusManager()) {
1111     View* focused_view = root->GetFocusManager()->GetFocusedView();
1112     if (focused_view && focused_view->GetInputMethod())
1113       focused_view->GetInputMethod()->OnCaretBoundsChanged(focused_view);
1114   }
1115   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetBoundsChanged(
1116     this,
1117     GetWindowBoundsInScreen()));
1118 }
1119
1120 void Widget::OnNativeWidgetSizeChanged(const gfx::Size& new_size) {
1121   View* root = GetRootView();
1122   if (root) {
1123     root->SetSize(new_size);
1124     if (root->GetFocusManager()) {
1125       View* focused_view = GetRootView()->GetFocusManager()->GetFocusedView();
1126       if (focused_view && focused_view->GetInputMethod())
1127         focused_view->GetInputMethod()->OnCaretBoundsChanged(focused_view);
1128     }
1129   }
1130   // Size changed notifications can fire prior to full initialization
1131   // i.e. during session restore.  Avoid saving session state during these
1132   // startup procedures.
1133   if (native_widget_initialized_)
1134     SaveWindowPlacement();
1135
1136   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetBoundsChanged(
1137     this,
1138     GetWindowBoundsInScreen()));
1139 }
1140
1141 void Widget::OnNativeWidgetBeginUserBoundsChange() {
1142   widget_delegate_->OnWindowBeginUserBoundsChange();
1143 }
1144
1145 void Widget::OnNativeWidgetEndUserBoundsChange() {
1146   widget_delegate_->OnWindowEndUserBoundsChange();
1147 }
1148
1149 bool Widget::HasFocusManager() const {
1150   return !!focus_manager_.get();
1151 }
1152
1153 bool Widget::OnNativeWidgetPaintAccelerated(const gfx::Rect& dirty_region) {
1154   ui::Compositor* compositor = GetCompositor();
1155   if (!compositor)
1156     return false;
1157
1158   compositor->ScheduleRedrawRect(dirty_region);
1159   return true;
1160 }
1161
1162 void Widget::OnNativeWidgetPaint(gfx::Canvas* canvas) {
1163   // On Linux Aura, we can get here during Init() because of the
1164   // SetInitialBounds call.
1165   if (native_widget_initialized_)
1166     GetRootView()->Paint(canvas, CullSet());
1167 }
1168
1169 int Widget::GetNonClientComponent(const gfx::Point& point) {
1170   int component = non_client_view_ ?
1171       non_client_view_->NonClientHitTest(point) :
1172       HTNOWHERE;
1173
1174   if (movement_disabled_ && (component == HTCAPTION || component == HTSYSMENU))
1175     return HTNOWHERE;
1176
1177   return component;
1178 }
1179
1180 void Widget::OnKeyEvent(ui::KeyEvent* event) {
1181   SendEventToProcessor(event);
1182 }
1183
1184 // TODO(tdanderson): We should not be calling the OnMouse*() functions on
1185 //                   RootView from anywhere in Widget. Use
1186 //                   SendEventToProcessor() instead. See crbug.com/348087.
1187 void Widget::OnMouseEvent(ui::MouseEvent* event) {
1188   View* root_view = GetRootView();
1189   switch (event->type()) {
1190     case ui::ET_MOUSE_PRESSED: {
1191       last_mouse_event_was_move_ = false;
1192
1193       // We may get deleted by the time we return from OnMousePressed. So we
1194       // use an observer to make sure we are still alive.
1195       WidgetDeletionObserver widget_deletion_observer(this);
1196
1197       // Make sure we're still visible before we attempt capture as the mouse
1198       // press processing may have made the window hide (as happens with menus).
1199
1200       // It is possible for a View to show a context menu on mouse-press. Since
1201       // the menu does a capture and starts a nested message-loop, the release
1202       // would go to the menu. The next click (i.e. both mouse-press and release
1203       // events) also go to the menu. The menu (and the nested message-loop)
1204       // gets closed after this second release event. The code then resumes from
1205       // here. So make sure that the mouse-button is still down before doing a
1206       // capture.
1207       if (root_view && root_view->OnMousePressed(*event) &&
1208           widget_deletion_observer.IsWidgetAlive() && IsVisible() &&
1209           internal::NativeWidgetPrivate::IsMouseButtonDown()) {
1210         is_mouse_button_pressed_ = true;
1211         if (!native_widget_->HasCapture())
1212           native_widget_->SetCapture();
1213         event->SetHandled();
1214       }
1215       return;
1216     }
1217
1218     case ui::ET_MOUSE_RELEASED:
1219       last_mouse_event_was_move_ = false;
1220       is_mouse_button_pressed_ = false;
1221       // Release capture first, to avoid confusion if OnMouseReleased blocks.
1222       if (auto_release_capture_ && native_widget_->HasCapture()) {
1223         base::AutoReset<bool> resetter(&ignore_capture_loss_, true);
1224         native_widget_->ReleaseCapture();
1225       }
1226       if (root_view)
1227         root_view->OnMouseReleased(*event);
1228       if ((event->flags() & ui::EF_IS_NON_CLIENT) == 0)
1229         event->SetHandled();
1230       return;
1231
1232     case ui::ET_MOUSE_MOVED:
1233     case ui::ET_MOUSE_DRAGGED:
1234       if (native_widget_->HasCapture() && is_mouse_button_pressed_) {
1235         last_mouse_event_was_move_ = false;
1236         if (root_view)
1237           root_view->OnMouseDragged(*event);
1238       } else if (!last_mouse_event_was_move_ ||
1239                  last_mouse_event_position_ != event->location()) {
1240         last_mouse_event_position_ = event->location();
1241         last_mouse_event_was_move_ = true;
1242         if (root_view)
1243           root_view->OnMouseMoved(*event);
1244       }
1245       return;
1246
1247     case ui::ET_MOUSE_EXITED:
1248       last_mouse_event_was_move_ = false;
1249       if (root_view)
1250         root_view->OnMouseExited(*event);
1251       return;
1252
1253     case ui::ET_MOUSEWHEEL:
1254       if (root_view && root_view->OnMouseWheel(
1255           static_cast<const ui::MouseWheelEvent&>(*event)))
1256         event->SetHandled();
1257       return;
1258
1259     default:
1260       return;
1261   }
1262 }
1263
1264 void Widget::OnMouseCaptureLost() {
1265   if (ignore_capture_loss_)
1266     return;
1267
1268   View* root_view = GetRootView();
1269   if (root_view)
1270     root_view->OnMouseCaptureLost();
1271   is_mouse_button_pressed_ = false;
1272 }
1273
1274 void Widget::OnScrollEvent(ui::ScrollEvent* event) {
1275   ui::ScrollEvent event_copy(*event);
1276   SendEventToProcessor(&event_copy);
1277
1278   // Convert unhandled ui::ET_SCROLL events into ui::ET_MOUSEWHEEL events.
1279   if (!event_copy.handled() && event_copy.type() == ui::ET_SCROLL) {
1280     ui::MouseWheelEvent wheel(*event);
1281     OnMouseEvent(&wheel);
1282   }
1283 }
1284
1285 void Widget::OnGestureEvent(ui::GestureEvent* event) {
1286   // We explicitly do not capture here. Not capturing enables multiple widgets
1287   // to get tap events at the same time. Views (such as tab dragging) may
1288   // explicitly capture.
1289   SendEventToProcessor(event);
1290 }
1291
1292 bool Widget::ExecuteCommand(int command_id) {
1293   return widget_delegate_->ExecuteWindowsCommand(command_id);
1294 }
1295
1296 InputMethod* Widget::GetInputMethodDirect() {
1297   return input_method_.get();
1298 }
1299
1300 const std::vector<ui::Layer*>& Widget::GetRootLayers() {
1301   if (root_layers_dirty_) {
1302     root_layers_dirty_ = false;
1303     root_layers_.clear();
1304     BuildRootLayers(GetRootView(), &root_layers_);
1305   }
1306   return root_layers_;
1307 }
1308
1309 bool Widget::HasHitTestMask() const {
1310   return widget_delegate_->WidgetHasHitTestMask();
1311 }
1312
1313 void Widget::GetHitTestMask(gfx::Path* mask) const {
1314   DCHECK(mask);
1315   widget_delegate_->GetWidgetHitTestMask(mask);
1316 }
1317
1318 Widget* Widget::AsWidget() {
1319   return this;
1320 }
1321
1322 const Widget* Widget::AsWidget() const {
1323   return this;
1324 }
1325
1326 bool Widget::SetInitialFocus(ui::WindowShowState show_state) {
1327   View* v = widget_delegate_->GetInitiallyFocusedView();
1328   if (!focus_on_creation_ || show_state == ui::SHOW_STATE_INACTIVE ||
1329       show_state == ui::SHOW_STATE_MINIMIZED) {
1330     // If not focusing the window now, tell the focus manager which view to
1331     // focus when the window is restored.
1332     if (v)
1333       focus_manager_->SetStoredFocusView(v);
1334     return true;
1335   }
1336   if (v)
1337     v->RequestFocus();
1338   return !!v;
1339 }
1340
1341 ////////////////////////////////////////////////////////////////////////////////
1342 // Widget, ui::EventSource implementation:
1343 ui::EventProcessor* Widget::GetEventProcessor() {
1344   return root_view_.get();
1345 }
1346
1347 ////////////////////////////////////////////////////////////////////////////////
1348 // Widget, FocusTraversable implementation:
1349
1350 FocusSearch* Widget::GetFocusSearch() {
1351   return root_view_->GetFocusSearch();
1352 }
1353
1354 FocusTraversable* Widget::GetFocusTraversableParent() {
1355   // We are a proxy to the root view, so we should be bypassed when traversing
1356   // up and as a result this should not be called.
1357   NOTREACHED();
1358   return NULL;
1359 }
1360
1361 View* Widget::GetFocusTraversableParentView() {
1362   // We are a proxy to the root view, so we should be bypassed when traversing
1363   // up and as a result this should not be called.
1364   NOTREACHED();
1365   return NULL;
1366 }
1367
1368 ////////////////////////////////////////////////////////////////////////////////
1369 // Widget, ui::NativeThemeObserver implementation:
1370
1371 void Widget::OnNativeThemeUpdated(ui::NativeTheme* observed_theme) {
1372   DCHECK(observer_manager_.IsObserving(observed_theme));
1373
1374   ui::NativeTheme* current_native_theme = GetNativeTheme();
1375   if (!observer_manager_.IsObserving(current_native_theme)) {
1376     observer_manager_.RemoveAll();
1377     observer_manager_.Add(current_native_theme);
1378   }
1379
1380   root_view_->PropagateNativeThemeChanged(current_native_theme);
1381 }
1382
1383 ////////////////////////////////////////////////////////////////////////////////
1384 // Widget, protected:
1385
1386 internal::RootView* Widget::CreateRootView() {
1387   return new internal::RootView(this);
1388 }
1389
1390 void Widget::DestroyRootView() {
1391   non_client_view_ = NULL;
1392   root_view_.reset();
1393   // Input method has to be destroyed before focus manager.
1394   input_method_.reset();
1395 }
1396
1397 void Widget::OnDragWillStart() {
1398 }
1399
1400 void Widget::OnDragComplete() {
1401 }
1402
1403 ////////////////////////////////////////////////////////////////////////////////
1404 // Widget, private:
1405
1406 void Widget::SetInactiveRenderingDisabled(bool value) {
1407   if (value == disable_inactive_rendering_)
1408     return;
1409
1410   disable_inactive_rendering_ = value;
1411   if (non_client_view_)
1412     non_client_view_->SetInactiveRenderingDisabled(value);
1413 }
1414
1415 void Widget::SaveWindowPlacement() {
1416   // The window delegate does the actual saving for us. It seems like (judging
1417   // by go/crash) that in some circumstances we can end up here after
1418   // WM_DESTROY, at which point the window delegate is likely gone. So just
1419   // bail.
1420   if (!widget_delegate_)
1421     return;
1422
1423   ui::WindowShowState show_state = ui::SHOW_STATE_NORMAL;
1424   gfx::Rect bounds;
1425   native_widget_->GetWindowPlacement(&bounds, &show_state);
1426   widget_delegate_->SaveWindowPlacement(bounds, show_state);
1427 }
1428
1429 void Widget::SetInitialBounds(const gfx::Rect& bounds) {
1430   if (!non_client_view_)
1431     return;
1432
1433   gfx::Rect saved_bounds;
1434   if (GetSavedWindowPlacement(&saved_bounds, &saved_show_state_)) {
1435     if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED) {
1436       // If we're going to maximize, wait until Show is invoked to set the
1437       // bounds. That way we avoid a noticeable resize.
1438       initial_restored_bounds_ = saved_bounds;
1439     } else if (!saved_bounds.IsEmpty()) {
1440       // If the saved bounds are valid, use them.
1441       SetBounds(saved_bounds);
1442     }
1443   } else {
1444     if (bounds.IsEmpty()) {
1445       // No initial bounds supplied, so size the window to its content and
1446       // center over its parent.
1447       native_widget_->CenterWindow(non_client_view_->GetPreferredSize());
1448     } else {
1449       // Use the supplied initial bounds.
1450       SetBoundsConstrained(bounds);
1451     }
1452   }
1453 }
1454
1455 void Widget::SetInitialBoundsForFramelessWindow(const gfx::Rect& bounds) {
1456   if (bounds.IsEmpty()) {
1457     View* contents_view = GetContentsView();
1458     DCHECK(contents_view);
1459     // No initial bounds supplied, so size the window to its content and
1460     // center over its parent if preferred size is provided.
1461     gfx::Size size = contents_view->GetPreferredSize();
1462     if (!size.IsEmpty())
1463       native_widget_->CenterWindow(size);
1464   } else {
1465     // Use the supplied initial bounds.
1466     SetBoundsConstrained(bounds);
1467   }
1468 }
1469
1470 bool Widget::GetSavedWindowPlacement(gfx::Rect* bounds,
1471                                      ui::WindowShowState* show_state) {
1472   // First we obtain the window's saved show-style and store it. We need to do
1473   // this here, rather than in Show() because by the time Show() is called,
1474   // the window's size will have been reset (below) and the saved maximized
1475   // state will have been lost. Sadly there's no way to tell on Windows when
1476   // a window is restored from maximized state, so we can't more accurately
1477   // track maximized state independently of sizing information.
1478
1479   // Restore the window's placement from the controller.
1480   if (widget_delegate_->GetSavedWindowPlacement(this, bounds, show_state)) {
1481     if (!widget_delegate_->ShouldRestoreWindowSize()) {
1482       bounds->set_size(non_client_view_->GetPreferredSize());
1483     } else {
1484       gfx::Size minimum_size = GetMinimumSize();
1485       // Make sure the bounds are at least the minimum size.
1486       if (bounds->width() < minimum_size.width())
1487         bounds->set_width(minimum_size.width());
1488
1489       if (bounds->height() < minimum_size.height())
1490         bounds->set_height(minimum_size.height());
1491     }
1492     return true;
1493   }
1494   return false;
1495 }
1496
1497 scoped_ptr<InputMethod> Widget::CreateInputMethod() {
1498   scoped_ptr<InputMethod> input_method(native_widget_->CreateInputMethod());
1499   if (input_method.get())
1500     input_method->Init(this);
1501   return input_method.Pass();
1502 }
1503
1504 void Widget::ReplaceInputMethod(InputMethod* input_method) {
1505   input_method_.reset(input_method);
1506   input_method->SetDelegate(native_widget_->GetInputMethodDelegate());
1507   input_method->Init(this);
1508 }
1509
1510 namespace internal {
1511
1512 ////////////////////////////////////////////////////////////////////////////////
1513 // internal::NativeWidgetPrivate, NativeWidget implementation:
1514
1515 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
1516   return this;
1517 }
1518
1519 }  // namespace internal
1520 }  // namespace views