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/logging.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/trace_event/trace_event.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   ~DefaultWidgetDelegate() override {}
  75
  76   // Overridden from WidgetDelegate:
  77   void DeleteDelegate() override { delete this; }
  78   Widget* GetWidget() override { return widget_; }
  79   const Widget* GetWidget() const override { return widget_; }
  80   bool ShouldAdvanceFocusToTopLevelWidget() const override {
  81     // In most situations where a Widget is used without a delegate the Widget
  82     // is used as a container, so that we want focus to advance to the top-level
  83     // widget. A good example of this is the find bar.
  84     return true;
  85   }
  86
  87  private:
  88   Widget* widget_;
  89
  90   DISALLOW_COPY_AND_ASSIGN(DefaultWidgetDelegate);
  91 };
  92
  93 ////////////////////////////////////////////////////////////////////////////////
  94 // Widget, InitParams:
  95
  96 Widget::InitParams::InitParams()
  97     : type(TYPE_WINDOW),
  98       delegate(NULL),
  99       child(false),
 100       opacity(INFER_OPACITY),
 101       accept_events(true),
 102       activatable(ACTIVATABLE_DEFAULT),
 103       keep_on_top(false),
 104       visible_on_all_workspaces(false),
 105       ownership(NATIVE_WIDGET_OWNS_WIDGET),
 106       mirror_origin_in_rtl(false),
 107       shadow_type(SHADOW_TYPE_DEFAULT),
 108       remove_standard_frame(false),
 109       use_system_default_icon(false),
 110       show_state(ui::SHOW_STATE_DEFAULT),
 111       parent(NULL),
 112       native_widget(NULL),
 113       desktop_window_tree_host(NULL),
 114       layer_type(aura::WINDOW_LAYER_TEXTURED),
 115       context(NULL),
 116       force_show_in_taskbar(false) {
 117 }
 118
 119 Widget::InitParams::InitParams(Type type)
 120     : type(type),
 121       delegate(NULL),
 122       child(false),
 123       opacity(INFER_OPACITY),
 124       accept_events(true),
 125       activatable(ACTIVATABLE_DEFAULT),
 126       keep_on_top(type == TYPE_MENU || type == TYPE_DRAG),
 127       visible_on_all_workspaces(false),
 128       ownership(NATIVE_WIDGET_OWNS_WIDGET),
 129       mirror_origin_in_rtl(false),
 130       shadow_type(SHADOW_TYPE_DEFAULT),
 131       remove_standard_frame(false),
 132       use_system_default_icon(false),
 133       show_state(ui::SHOW_STATE_DEFAULT),
 134       parent(NULL),
 135       native_widget(NULL),
 136       desktop_window_tree_host(NULL),
 137       layer_type(aura::WINDOW_LAYER_TEXTURED),
 138       context(NULL),
 139       force_show_in_taskbar(false) {
 140 }
 141
 142 Widget::InitParams::~InitParams() {
 143 }
 144
 145 ////////////////////////////////////////////////////////////////////////////////
 146 // Widget, public:
 147
 148 Widget::Widget()
 149     : native_widget_(NULL),
 150       widget_delegate_(NULL),
 151       non_client_view_(NULL),
 152       dragged_view_(NULL),
 153       ownership_(InitParams::NATIVE_WIDGET_OWNS_WIDGET),
 154       is_secondary_widget_(true),
 155       frame_type_(FRAME_TYPE_DEFAULT),
 156       disable_inactive_rendering_(false),
 157       widget_closed_(false),
 158       saved_show_state_(ui::SHOW_STATE_DEFAULT),
 159       focus_on_creation_(true),
 160       is_top_level_(false),
 161       native_widget_initialized_(false),
 162       native_widget_destroyed_(false),
 163       is_mouse_button_pressed_(false),
 164       ignore_capture_loss_(false),
 165       last_mouse_event_was_move_(false),
 166       auto_release_capture_(true),
 167       root_layers_dirty_(false),
 168       movement_disabled_(false),
 169       observer_manager_(this) {
 170 }
 171
 172 Widget::~Widget() {
 173   DestroyRootView();
 174   if (ownership_ == InitParams::WIDGET_OWNS_NATIVE_WIDGET) {
 175     delete native_widget_;
 176   } else {
 177     DCHECK(native_widget_destroyed_)
 178         << "Destroying a widget with a live native widget. "
 179         << "Widget probably should use WIDGET_OWNS_NATIVE_WIDGET ownership.";
 180   }
 181 }
 182
 183 // static
 184 Widget* Widget::CreateWindow(WidgetDelegate* delegate) {
 185   return CreateWindowWithBounds(delegate, gfx::Rect());
 186 }
 187
 188 // static
 189 Widget* Widget::CreateWindowWithBounds(WidgetDelegate* delegate,
 190                                        const gfx::Rect& bounds) {
 191   Widget* widget = new Widget;
 192   Widget::InitParams params;
 193   params.bounds = bounds;
 194   params.delegate = delegate;
 195   widget->Init(params);
 196   return widget;
 197 }
 198
 199 // static
 200 Widget* Widget::CreateWindowWithParent(WidgetDelegate* delegate,
 201                                        gfx::NativeView parent) {
 202   return CreateWindowWithParentAndBounds(delegate, parent, gfx::Rect());
 203 }
 204
 205 // static
 206 Widget* Widget::CreateWindowWithParentAndBounds(WidgetDelegate* delegate,
 207                                                 gfx::NativeView parent,
 208                                                 const gfx::Rect& bounds) {
 209   Widget* widget = new Widget;
 210   Widget::InitParams params;
 211   params.delegate = delegate;
 212   params.parent = parent;
 213   params.bounds = bounds;
 214   widget->Init(params);
 215   return widget;
 216 }
 217
 218 // static
 219 Widget* Widget::CreateWindowWithContext(WidgetDelegate* delegate,
 220                                         gfx::NativeWindow context) {
 221   return CreateWindowWithContextAndBounds(delegate, context, gfx::Rect());
 222 }
 223
 224 // static
 225 Widget* Widget::CreateWindowWithContextAndBounds(WidgetDelegate* delegate,
 226                                                  gfx::NativeWindow context,
 227                                                  const gfx::Rect& bounds) {
 228   Widget* widget = new Widget;
 229   Widget::InitParams params;
 230   params.delegate = delegate;
 231   params.context = context;
 232   params.bounds = bounds;
 233   widget->Init(params);
 234   return widget;
 235 }
 236
 237 // static
 238 Widget* Widget::GetWidgetForNativeView(gfx::NativeView native_view) {
 239   internal::NativeWidgetPrivate* native_widget =
 240       internal::NativeWidgetPrivate::GetNativeWidgetForNativeView(native_view);
 241   return native_widget ? native_widget->GetWidget() : NULL;
 242 }
 243
 244 // static
 245 Widget* Widget::GetWidgetForNativeWindow(gfx::NativeWindow native_window) {
 246   internal::NativeWidgetPrivate* native_widget =
 247       internal::NativeWidgetPrivate::GetNativeWidgetForNativeWindow(
 248           native_window);
 249   return native_widget ? native_widget->GetWidget() : NULL;
 250 }
 251
 252 // static
 253 Widget* Widget::GetTopLevelWidgetForNativeView(gfx::NativeView native_view) {
 254   internal::NativeWidgetPrivate* native_widget =
 255       internal::NativeWidgetPrivate::GetTopLevelNativeWidget(native_view);
 256   return native_widget ? native_widget->GetWidget() : NULL;
 257 }
 258
 259
 260 // static
 261 void Widget::GetAllChildWidgets(gfx::NativeView native_view,
 262                                 Widgets* children) {
 263   internal::NativeWidgetPrivate::GetAllChildWidgets(native_view, children);
 264 }
 265
 266 // static
 267 void Widget::GetAllOwnedWidgets(gfx::NativeView native_view,
 268                                 Widgets* owned) {
 269   internal::NativeWidgetPrivate::GetAllOwnedWidgets(native_view, owned);
 270 }
 271
 272 // static
 273 void Widget::ReparentNativeView(gfx::NativeView native_view,
 274                                 gfx::NativeView new_parent) {
 275   internal::NativeWidgetPrivate::ReparentNativeView(native_view, new_parent);
 276 }
 277
 278 // static
 279 int Widget::GetLocalizedContentsWidth(int col_resource_id) {
 280   return ui::GetLocalizedContentsWidthForFont(col_resource_id,
 281       ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont));
 282 }
 283
 284 // static
 285 int Widget::GetLocalizedContentsHeight(int row_resource_id) {
 286   return ui::GetLocalizedContentsHeightForFont(row_resource_id,
 287       ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont));
 288 }
 289
 290 // static
 291 gfx::Size Widget::GetLocalizedContentsSize(int col_resource_id,
 292                                            int row_resource_id) {
 293   return gfx::Size(GetLocalizedContentsWidth(col_resource_id),
 294                    GetLocalizedContentsHeight(row_resource_id));
 295 }
 296
 297 // static
 298 bool Widget::RequiresNonClientView(InitParams::Type type) {
 299   return type == InitParams::TYPE_WINDOW ||
 300          type == InitParams::TYPE_PANEL ||
 301          type == InitParams::TYPE_BUBBLE;
 302 }
 303
 304 void Widget::Init(const InitParams& in_params) {
 305   TRACE_EVENT0("views", "Widget::Init");
 306   InitParams params = in_params;
 307
 308   params.child |= (params.type == InitParams::TYPE_CONTROL);
 309   is_top_level_ = !params.child;
 310
 311   if (params.opacity == views::Widget::InitParams::INFER_OPACITY &&
 312       params.type != views::Widget::InitParams::TYPE_WINDOW &&
 313       params.type != views::Widget::InitParams::TYPE_PANEL)
 314     params.opacity = views::Widget::InitParams::OPAQUE_WINDOW;
 315
 316   if (ViewsDelegate::views_delegate)
 317     ViewsDelegate::views_delegate->OnBeforeWidgetInit(&params, this);
 318
 319   if (params.opacity == views::Widget::InitParams::INFER_OPACITY)
 320     params.opacity = views::Widget::InitParams::OPAQUE_WINDOW;
 321
 322   bool can_activate = false;
 323   if (params.activatable != InitParams::ACTIVATABLE_DEFAULT) {
 324     can_activate = (params.activatable == InitParams::ACTIVATABLE_YES);
 325   } else if (params.type != InitParams::TYPE_CONTROL &&
 326              params.type != InitParams::TYPE_POPUP &&
 327              params.type != InitParams::TYPE_MENU &&
 328              params.type != InitParams::TYPE_TOOLTIP &&
 329              params.type != InitParams::TYPE_DRAG) {
 330     can_activate = true;
 331     params.activatable = InitParams::ACTIVATABLE_YES;
 332   } else {
 333     can_activate = false;
 334     params.activatable = InitParams::ACTIVATABLE_NO;
 335   }
 336
 337   widget_delegate_ = params.delegate ?
 338       params.delegate : new DefaultWidgetDelegate(this);
 339   widget_delegate_->set_can_activate(can_activate);
 340
 341   ownership_ = params.ownership;
 342   native_widget_ = CreateNativeWidget(params.native_widget, this)->
 343                    AsNativeWidgetPrivate();
 344   root_view_.reset(CreateRootView());
 345   default_theme_provider_.reset(new ui::DefaultThemeProvider);
 346   if (params.type == InitParams::TYPE_MENU) {
 347     is_mouse_button_pressed_ =
 348         internal::NativeWidgetPrivate::IsMouseButtonDown();
 349   }
 350   native_widget_->InitNativeWidget(params);
 351   if (RequiresNonClientView(params.type)) {
 352     non_client_view_ = new NonClientView;
 353     non_client_view_->SetFrameView(CreateNonClientFrameView());
 354     // Create the ClientView, add it to the NonClientView and add the
 355     // NonClientView to the RootView. This will cause everything to be parented.
 356     non_client_view_->set_client_view(widget_delegate_->CreateClientView(this));
 357     non_client_view_->SetOverlayView(widget_delegate_->CreateOverlayView());
 358     SetContentsView(non_client_view_);
 359     // Initialize the window's title before setting the window's initial bounds;
 360     // the frame view's preferred height may depend on the presence of a title.
 361     UpdateWindowTitle();
 362     non_client_view_->ResetWindowControls();
 363     SetInitialBounds(params.bounds);
 364     if (params.show_state == ui::SHOW_STATE_MAXIMIZED)
 365       Maximize();
 366     else if (params.show_state == ui::SHOW_STATE_MINIMIZED)
 367       Minimize();
 368   } else if (params.delegate) {
 369     SetContentsView(params.delegate->GetContentsView());
 370     SetInitialBoundsForFramelessWindow(params.bounds);
 371   }
 372   // This must come after SetContentsView() or it might not be able to find
 373   // the correct NativeTheme (on Linux). See http://crbug.com/384492
 374   observer_manager_.Add(GetNativeTheme());
 375   native_widget_initialized_ = true;
 376 }
 377
 378 // Unconverted methods (see header) --------------------------------------------
 379
 380 gfx::NativeView Widget::GetNativeView() const {
 381   return native_widget_->GetNativeView();
 382 }
 383
 384 gfx::NativeWindow Widget::GetNativeWindow() const {
 385   return native_widget_->GetNativeWindow();
 386 }
 387
 388 void Widget::AddObserver(WidgetObserver* observer) {
 389   observers_.AddObserver(observer);
 390 }
 391
 392 void Widget::RemoveObserver(WidgetObserver* observer) {
 393   observers_.RemoveObserver(observer);
 394 }
 395
 396 bool Widget::HasObserver(const WidgetObserver* observer) const {
 397   return observers_.HasObserver(observer);
 398 }
 399
 400 void Widget::AddRemovalsObserver(WidgetRemovalsObserver* observer) {
 401   removals_observers_.AddObserver(observer);
 402 }
 403
 404 void Widget::RemoveRemovalsObserver(WidgetRemovalsObserver* observer) {
 405   removals_observers_.RemoveObserver(observer);
 406 }
 407
 408 bool Widget::HasRemovalsObserver(const WidgetRemovalsObserver* observer) const {
 409   return removals_observers_.HasObserver(observer);
 410 }
 411
 412 bool Widget::GetAccelerator(int cmd_id, ui::Accelerator* accelerator) const {
 413   return false;
 414 }
 415
 416 void Widget::ViewHierarchyChanged(
 417     const View::ViewHierarchyChangedDetails& details) {
 418   if (!details.is_add) {
 419     if (details.child == dragged_view_)
 420       dragged_view_ = NULL;
 421     FocusManager* focus_manager = GetFocusManager();
 422     if (focus_manager)
 423       focus_manager->ViewRemoved(details.child);
 424     ViewStorage::GetInstance()->ViewRemoved(details.child);
 425     native_widget_->ViewRemoved(details.child);
 426   }
 427 }
 428
 429 void Widget::NotifyNativeViewHierarchyWillChange() {
 430   FocusManager* focus_manager = GetFocusManager();
 431   // We are being removed from a window hierarchy.  Treat this as
 432   // the root_view_ being removed.
 433   if (focus_manager)
 434     focus_manager->ViewRemoved(root_view_.get());
 435 }
 436
 437 void Widget::NotifyNativeViewHierarchyChanged() {
 438   root_view_->NotifyNativeViewHierarchyChanged();
 439 }
 440
 441 void Widget::NotifyWillRemoveView(View* view) {
 442   FOR_EACH_OBSERVER(WidgetRemovalsObserver,
 443                     removals_observers_,
 444                     OnWillRemoveView(this, view));
 445 }
 446
 447 // Converted methods (see header) ----------------------------------------------
 448
 449 Widget* Widget::GetTopLevelWidget() {
 450   return const_cast<Widget*>(
 451       static_cast<const Widget*>(this)->GetTopLevelWidget());
 452 }
 453
 454 const Widget* Widget::GetTopLevelWidget() const {
 455   // GetTopLevelNativeWidget doesn't work during destruction because
 456   // property is gone after gobject gets deleted. Short circuit here
 457   // for toplevel so that InputMethod can remove itself from
 458   // focus manager.
 459   return is_top_level() ? this : native_widget_->GetTopLevelWidget();
 460 }
 461
 462 void Widget::SetContentsView(View* view) {
 463   // Do not SetContentsView() again if it is already set to the same view.
 464   if (view == GetContentsView())
 465     return;
 466   root_view_->SetContentsView(view);
 467   if (non_client_view_ != view) {
 468     // |non_client_view_| can only be non-NULL here if RequiresNonClientView()
 469     // was true when the widget was initialized. Creating widgets with non
 470     // client views and then setting the contents view can cause subtle
 471     // problems on Windows, where the native widget thinks there is still a
 472     // |non_client_view_|. If you get this error, either use a different type
 473     // when initializing the widget, or don't call SetContentsView().
 474     DCHECK(!non_client_view_);
 475     non_client_view_ = NULL;
 476   }
 477 }
 478
 479 View* Widget::GetContentsView() {
 480   return root_view_->GetContentsView();
 481 }
 482
 483 gfx::Rect Widget::GetWindowBoundsInScreen() const {
 484   return native_widget_->GetWindowBoundsInScreen();
 485 }
 486
 487 gfx::Rect Widget::GetClientAreaBoundsInScreen() const {
 488   return native_widget_->GetClientAreaBoundsInScreen();
 489 }
 490
 491 gfx::Rect Widget::GetRestoredBounds() const {
 492   return native_widget_->GetRestoredBounds();
 493 }
 494
 495 void Widget::SetBounds(const gfx::Rect& bounds) {
 496   native_widget_->SetBounds(bounds);
 497 }
 498
 499 void Widget::SetSize(const gfx::Size& size) {
 500   native_widget_->SetSize(size);
 501 }
 502
 503 void Widget::CenterWindow(const gfx::Size& size) {
 504   native_widget_->CenterWindow(size);
 505 }
 506
 507 void Widget::SetBoundsConstrained(const gfx::Rect& bounds) {
 508   gfx::Rect work_area =
 509       gfx::Screen::GetScreenFor(GetNativeView())->GetDisplayNearestPoint(
 510           bounds.origin()).work_area();
 511   if (work_area.IsEmpty()) {
 512     SetBounds(bounds);
 513   } else {
 514     // Inset the work area slightly.
 515     work_area.Inset(10, 10, 10, 10);
 516     work_area.AdjustToFit(bounds);
 517     SetBounds(work_area);
 518   }
 519 }
 520
 521 void Widget::SetVisibilityChangedAnimationsEnabled(bool value) {
 522   native_widget_->SetVisibilityChangedAnimationsEnabled(value);
 523 }
 524
 525 void Widget::SetVisibilityAnimationDuration(const base::TimeDelta& duration) {
 526   native_widget_->SetVisibilityAnimationDuration(duration);
 527 }
 528
 529 void Widget::SetVisibilityAnimationTransition(VisibilityTransition transition) {
 530   native_widget_->SetVisibilityAnimationTransition(transition);
 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   const ui::Layer* layer = GetLayer();
 603   TRACE_EVENT1("views", "Widget::Show", "layer",
 604                layer ? layer->name() : "none");
 605   if (non_client_view_) {
 606     // While initializing, the kiosk mode will go to full screen before the
 607     // widget gets shown. In that case we stay in full screen mode, regardless
 608     // of the |saved_show_state_| member.
 609     if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED &&
 610         !initial_restored_bounds_.IsEmpty() &&
 611         !IsFullscreen()) {
 612       native_widget_->ShowMaximizedWithBounds(initial_restored_bounds_);
 613     } else {
 614       native_widget_->ShowWithWindowState(
 615           IsFullscreen() ? ui::SHOW_STATE_FULLSCREEN : saved_show_state_);
 616     }
 617     // |saved_show_state_| only applies the first time the window is shown.
 618     // If we don't reset the value the window may be shown maximized every time
 619     // it is subsequently shown after being hidden.
 620     saved_show_state_ = ui::SHOW_STATE_NORMAL;
 621   } else {
 622     CanActivate()
 623         ? native_widget_->Show()
 624         : native_widget_->ShowWithWindowState(ui::SHOW_STATE_INACTIVE);
 625   }
 626 }
 627
 628 void Widget::Hide() {
 629   native_widget_->Hide();
 630 }
 631
 632 void Widget::ShowInactive() {
 633   // If this gets called with saved_show_state_ == ui::SHOW_STATE_MAXIMIZED,
 634   // call SetBounds()with the restored bounds to set the correct size. This
 635   // normally should not happen, but if it does we should avoid showing unsized
 636   // windows.
 637   if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED &&
 638       !initial_restored_bounds_.IsEmpty()) {
 639     SetBounds(initial_restored_bounds_);
 640     saved_show_state_ = ui::SHOW_STATE_NORMAL;
 641   }
 642   native_widget_->ShowWithWindowState(ui::SHOW_STATE_INACTIVE);
 643 }
 644
 645 void Widget::Activate() {
 646   native_widget_->Activate();
 647 }
 648
 649 void Widget::Deactivate() {
 650   native_widget_->Deactivate();
 651 }
 652
 653 bool Widget::IsActive() const {
 654   return native_widget_->IsActive();
 655 }
 656
 657 void Widget::DisableInactiveRendering() {
 658   SetInactiveRenderingDisabled(true);
 659 }
 660
 661 void Widget::SetAlwaysOnTop(bool on_top) {
 662   native_widget_->SetAlwaysOnTop(on_top);
 663 }
 664
 665 bool Widget::IsAlwaysOnTop() const {
 666   return native_widget_->IsAlwaysOnTop();
 667 }
 668
 669 void Widget::SetVisibleOnAllWorkspaces(bool always_visible) {
 670   native_widget_->SetVisibleOnAllWorkspaces(always_visible);
 671 }
 672
 673 void Widget::Maximize() {
 674   native_widget_->Maximize();
 675 }
 676
 677 void Widget::Minimize() {
 678   native_widget_->Minimize();
 679 }
 680
 681 void Widget::Restore() {
 682   native_widget_->Restore();
 683 }
 684
 685 bool Widget::IsMaximized() const {
 686   return native_widget_->IsMaximized();
 687 }
 688
 689 bool Widget::IsMinimized() const {
 690   return native_widget_->IsMinimized();
 691 }
 692
 693 void Widget::SetFullscreen(bool fullscreen) {
 694   if (IsFullscreen() == fullscreen)
 695     return;
 696
 697   native_widget_->SetFullscreen(fullscreen);
 698
 699   if (non_client_view_)
 700     non_client_view_->Layout();
 701 }
 702
 703 bool Widget::IsFullscreen() const {
 704   return native_widget_->IsFullscreen();
 705 }
 706
 707 void Widget::SetOpacity(unsigned char opacity) {
 708   native_widget_->SetOpacity(opacity);
 709 }
 710
 711 void Widget::SetUseDragFrame(bool use_drag_frame) {
 712   native_widget_->SetUseDragFrame(use_drag_frame);
 713 }
 714
 715 void Widget::FlashFrame(bool flash) {
 716   native_widget_->FlashFrame(flash);
 717 }
 718
 719 View* Widget::GetRootView() {
 720   return root_view_.get();
 721 }
 722
 723 const View* Widget::GetRootView() const {
 724   return root_view_.get();
 725 }
 726
 727 bool Widget::IsVisible() const {
 728   return native_widget_->IsVisible();
 729 }
 730
 731 ui::ThemeProvider* Widget::GetThemeProvider() const {
 732   const Widget* root_widget = GetTopLevelWidget();
 733   if (root_widget && root_widget != this) {
 734     // Attempt to get the theme provider, and fall back to the default theme
 735     // provider if not found.
 736     ui::ThemeProvider* provider = root_widget->GetThemeProvider();
 737     if (provider)
 738       return provider;
 739
 740     provider = root_widget->default_theme_provider_.get();
 741     if (provider)
 742       return provider;
 743   }
 744   return default_theme_provider_.get();
 745 }
 746
 747 const ui::NativeTheme* Widget::GetNativeTheme() const {
 748   return native_widget_->GetNativeTheme();
 749 }
 750
 751 FocusManager* Widget::GetFocusManager() {
 752   Widget* toplevel_widget = GetTopLevelWidget();
 753   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 754 }
 755
 756 const FocusManager* Widget::GetFocusManager() const {
 757   const Widget* toplevel_widget = GetTopLevelWidget();
 758   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 759 }
 760
 761 ui::TextInputClient* Widget::GetFocusedTextInputClient() {
 762   FocusManager* focus_manager = GetFocusManager();
 763   View* view = focus_manager ? focus_manager->GetFocusedView() : nullptr;
 764   return view ? view->GetTextInputClient() : nullptr;
 765 }
 766
 767 InputMethod* Widget::GetInputMethod() {
 768   return const_cast<InputMethod*>(
 769       const_cast<const Widget*>(this)->GetInputMethod());
 770 }
 771
 772 const InputMethod* Widget::GetInputMethod() const {
 773   if (is_top_level()) {
 774     if (!input_method_.get())
 775       input_method_ = const_cast<Widget*>(this)->CreateInputMethod().Pass();
 776     return input_method_.get();
 777   } else {
 778     const Widget* toplevel = GetTopLevelWidget();
 779     // If GetTopLevelWidget() returns itself which is not toplevel,
 780     // the widget is detached from toplevel widget.
 781     // TODO(oshima): Fix GetTopLevelWidget() to return NULL
 782     // if there is no toplevel. We probably need to add GetTopMostWidget()
 783     // to replace some use cases.
 784     return (toplevel && toplevel != this) ? toplevel->GetInputMethod() : NULL;
 785   }
 786 }
 787
 788 ui::InputMethod* Widget::GetHostInputMethod() {
 789   return native_widget_private()->GetHostInputMethod();
 790 }
 791
 792 void Widget::RunShellDrag(View* view,
 793                           const ui::OSExchangeData& data,
 794                           const gfx::Point& location,
 795                           int operation,
 796                           ui::DragDropTypes::DragEventSource source) {
 797   dragged_view_ = view;
 798   OnDragWillStart();
 799
 800   WidgetDeletionObserver widget_deletion_observer(this);
 801   native_widget_->RunShellDrag(view, data, location, operation, source);
 802
 803   // The widget may be destroyed during the drag operation.
 804   if (!widget_deletion_observer.IsWidgetAlive())
 805     return;
 806
 807   // If the view is removed during the drag operation, dragged_view_ is set to
 808   // NULL.
 809   if (view && dragged_view_ == view) {
 810     dragged_view_ = NULL;
 811     view->OnDragDone();
 812   }
 813   OnDragComplete();
 814 }
 815
 816 void Widget::SchedulePaintInRect(const gfx::Rect& rect) {
 817   native_widget_->SchedulePaintInRect(rect);
 818 }
 819
 820 void Widget::SetCursor(gfx::NativeCursor cursor) {
 821   native_widget_->SetCursor(cursor);
 822 }
 823
 824 bool Widget::IsMouseEventsEnabled() const {
 825   return native_widget_->IsMouseEventsEnabled();
 826 }
 827
 828 void Widget::SetNativeWindowProperty(const char* name, void* value) {
 829   native_widget_->SetNativeWindowProperty(name, value);
 830 }
 831
 832 void* Widget::GetNativeWindowProperty(const char* name) const {
 833   return native_widget_->GetNativeWindowProperty(name);
 834 }
 835
 836 void Widget::UpdateWindowTitle() {
 837   if (!non_client_view_)
 838     return;
 839
 840   // Update the native frame's text. We do this regardless of whether or not
 841   // the native frame is being used, since this also updates the taskbar, etc.
 842   base::string16 window_title = widget_delegate_->GetWindowTitle();
 843   base::i18n::AdjustStringForLocaleDirection(&window_title);
 844   if (!native_widget_->SetWindowTitle(window_title))
 845     return;
 846   non_client_view_->UpdateWindowTitle();
 847
 848   // If the non-client view is rendering its own title, it'll need to relayout
 849   // now and to get a paint update later on.
 850   non_client_view_->Layout();
 851 }
 852
 853 void Widget::UpdateWindowIcon() {
 854   if (non_client_view_)
 855     non_client_view_->UpdateWindowIcon();
 856   native_widget_->SetWindowIcons(widget_delegate_->GetWindowIcon(),
 857                                  widget_delegate_->GetWindowAppIcon());
 858 }
 859
 860 FocusTraversable* Widget::GetFocusTraversable() {
 861   return static_cast<internal::RootView*>(root_view_.get());
 862 }
 863
 864 void Widget::ThemeChanged() {
 865   root_view_->ThemeChanged();
 866 }
 867
 868 void Widget::LocaleChanged() {
 869   root_view_->LocaleChanged();
 870 }
 871
 872 void Widget::DeviceScaleFactorChanged(float device_scale_factor) {
 873   root_view_->DeviceScaleFactorChanged(device_scale_factor);
 874 }
 875
 876 void Widget::SetFocusTraversableParent(FocusTraversable* parent) {
 877   root_view_->SetFocusTraversableParent(parent);
 878 }
 879
 880 void Widget::SetFocusTraversableParentView(View* parent_view) {
 881   root_view_->SetFocusTraversableParentView(parent_view);
 882 }
 883
 884 void Widget::ClearNativeFocus() {
 885   native_widget_->ClearNativeFocus();
 886 }
 887
 888 NonClientFrameView* Widget::CreateNonClientFrameView() {
 889   NonClientFrameView* frame_view =
 890       widget_delegate_->CreateNonClientFrameView(this);
 891   if (!frame_view)
 892     frame_view = native_widget_->CreateNonClientFrameView();
 893   if (!frame_view && ViewsDelegate::views_delegate) {
 894     frame_view =
 895         ViewsDelegate::views_delegate->CreateDefaultNonClientFrameView(this);
 896   }
 897   if (frame_view)
 898     return frame_view;
 899
 900   CustomFrameView* custom_frame_view = new CustomFrameView;
 901   custom_frame_view->Init(this);
 902   return custom_frame_view;
 903 }
 904
 905 bool Widget::ShouldUseNativeFrame() const {
 906   if (frame_type_ != FRAME_TYPE_DEFAULT)
 907     return frame_type_ == FRAME_TYPE_FORCE_NATIVE;
 908   return native_widget_->ShouldUseNativeFrame();
 909 }
 910
 911 bool Widget::ShouldWindowContentsBeTransparent() const {
 912   return native_widget_->ShouldWindowContentsBeTransparent();
 913 }
 914
 915 void Widget::DebugToggleFrameType() {
 916   if (frame_type_ == FRAME_TYPE_DEFAULT) {
 917     frame_type_ = ShouldUseNativeFrame() ? FRAME_TYPE_FORCE_CUSTOM :
 918         FRAME_TYPE_FORCE_NATIVE;
 919   } else {
 920     frame_type_ = frame_type_ == FRAME_TYPE_FORCE_CUSTOM ?
 921         FRAME_TYPE_FORCE_NATIVE : FRAME_TYPE_FORCE_CUSTOM;
 922   }
 923   FrameTypeChanged();
 924 }
 925
 926 void Widget::FrameTypeChanged() {
 927   native_widget_->FrameTypeChanged();
 928 }
 929
 930 const ui::Compositor* Widget::GetCompositor() const {
 931   return native_widget_->GetCompositor();
 932 }
 933
 934 const ui::Layer* Widget::GetLayer() const {
 935   return native_widget_->GetLayer();
 936 }
 937
 938 void Widget::ReorderNativeViews() {
 939   native_widget_->ReorderNativeViews();
 940 }
 941
 942 void Widget::UpdateRootLayers() {
 943   // Calculate the layers requires traversing the tree, and since nearly any
 944   // mutation of the tree can trigger this call we delay until absolutely
 945   // necessary.
 946   root_layers_dirty_ = true;
 947 }
 948
 949 const NativeWidget* Widget::native_widget() const {
 950   return native_widget_;
 951 }
 952
 953 NativeWidget* Widget::native_widget() {
 954   return native_widget_;
 955 }
 956
 957 void Widget::SetCapture(View* view) {
 958   if (!native_widget_->HasCapture()) {
 959     native_widget_->SetCapture();
 960
 961     // Early return if setting capture was unsuccessful.
 962     if (!native_widget_->HasCapture())
 963       return;
 964   }
 965
 966   if (internal::NativeWidgetPrivate::IsMouseButtonDown())
 967     is_mouse_button_pressed_ = true;
 968   root_view_->SetMouseHandler(view);
 969 }
 970
 971 void Widget::ReleaseCapture() {
 972   if (native_widget_->HasCapture())
 973     native_widget_->ReleaseCapture();
 974 }
 975
 976 bool Widget::HasCapture() {
 977   return native_widget_->HasCapture();
 978 }
 979
 980 TooltipManager* Widget::GetTooltipManager() {
 981   return native_widget_->GetTooltipManager();
 982 }
 983
 984 const TooltipManager* Widget::GetTooltipManager() const {
 985   return native_widget_->GetTooltipManager();
 986 }
 987
 988 gfx::Rect Widget::GetWorkAreaBoundsInScreen() const {
 989   return native_widget_->GetWorkAreaBoundsInScreen();
 990 }
 991
 992 void Widget::SynthesizeMouseMoveEvent() {
 993   last_mouse_event_was_move_ = false;
 994   ui::MouseEvent mouse_event(ui::ET_MOUSE_MOVED,
 995                              last_mouse_event_position_,
 996                              last_mouse_event_position_,
 997                              ui::EF_IS_SYNTHESIZED, 0);
 998   root_view_->OnMouseMoved(mouse_event);
 999 }
1000
1001 void Widget::OnRootViewLayout() {
1002   native_widget_->OnRootViewLayout();
1003 }
1004
1005 bool Widget::IsTranslucentWindowOpacitySupported() const {
1006   return native_widget_->IsTranslucentWindowOpacitySupported();
1007 }
1008
1009 void Widget::OnSizeConstraintsChanged() {
1010   native_widget_->OnSizeConstraintsChanged();
1011   non_client_view_->SizeConstraintsChanged();
1012 }
1013
1014 void Widget::OnOwnerClosing() {
1015 }
1016
1017 ////////////////////////////////////////////////////////////////////////////////
1018 // Widget, NativeWidgetDelegate implementation:
1019
1020 bool Widget::IsModal() const {
1021   return widget_delegate_->GetModalType() != ui::MODAL_TYPE_NONE;
1022 }
1023
1024 bool Widget::IsDialogBox() const {
1025   return !!widget_delegate_->AsDialogDelegate();
1026 }
1027
1028 bool Widget::CanActivate() const {
1029   return widget_delegate_->CanActivate();
1030 }
1031
1032 bool Widget::IsInactiveRenderingDisabled() const {
1033   return disable_inactive_rendering_;
1034 }
1035
1036 void Widget::EnableInactiveRendering() {
1037   SetInactiveRenderingDisabled(false);
1038 }
1039
1040 void Widget::OnNativeWidgetActivationChanged(bool active) {
1041   // On windows we may end up here before we've completed initialization (from
1042   // an WM_NCACTIVATE). If that happens the WidgetDelegate likely doesn't know
1043   // the Widget and will crash attempting to access it.
1044   if (!active && native_widget_initialized_)
1045     SaveWindowPlacement();
1046
1047   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1048                     OnWidgetActivationChanged(this, active));
1049
1050   // During window creation, the widget gets focused without activation, and in
1051   // that case, the focus manager cannot set the appropriate text input client
1052   // because the widget is not active.  Thus we have to notify the focus manager
1053   // not only when the focus changes but also when the widget gets activated.
1054   // See crbug.com/377479 for details.
1055   views::FocusManager* focus_manager = GetFocusManager();
1056   if (focus_manager) {
1057     if (active)
1058       focus_manager->FocusTextInputClient(focus_manager->GetFocusedView());
1059     else
1060       focus_manager->BlurTextInputClient(focus_manager->GetFocusedView());
1061   }
1062
1063   if (IsVisible() && non_client_view())
1064     non_client_view()->frame_view()->SchedulePaint();
1065 }
1066
1067 void Widget::OnNativeFocus(gfx::NativeView old_focused_view) {
1068   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(old_focused_view,
1069                                                         GetNativeView());
1070 }
1071
1072 void Widget::OnNativeBlur(gfx::NativeView new_focused_view) {
1073   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(GetNativeView(),
1074                                                         new_focused_view);
1075 }
1076
1077 void Widget::OnNativeWidgetVisibilityChanging(bool visible) {
1078   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1079                     OnWidgetVisibilityChanging(this, visible));
1080 }
1081
1082 void Widget::OnNativeWidgetVisibilityChanged(bool visible) {
1083   View* root = GetRootView();
1084   if (root)
1085     root->PropagateVisibilityNotifications(root, visible);
1086   FOR_EACH_OBSERVER(WidgetObserver, observers_,
1087                     OnWidgetVisibilityChanged(this, visible));
1088   if (GetCompositor() && root && root->layer())
1089     root->layer()->SetVisible(visible);
1090 }
1091
1092 void Widget::OnNativeWidgetCreated(bool desktop_widget) {
1093   if (is_top_level())
1094     focus_manager_.reset(FocusManagerFactory::Create(this, desktop_widget));
1095
1096   native_widget_->InitModalType(widget_delegate_->GetModalType());
1097
1098   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetCreated(this));
1099 }
1100
1101 void Widget::OnNativeWidgetDestroying() {
1102   // Tell the focus manager (if any) that root_view is being removed
1103   // in case that the focused view is under this root view.
1104   if (GetFocusManager())
1105     GetFocusManager()->ViewRemoved(root_view_.get());
1106   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetDestroying(this));
1107   if (non_client_view_)
1108     non_client_view_->WindowClosing();
1109   widget_delegate_->WindowClosing();
1110 }
1111
1112 void Widget::OnNativeWidgetDestroyed() {
1113   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetDestroyed(this));
1114   widget_delegate_->DeleteDelegate();
1115   widget_delegate_ = NULL;
1116   native_widget_destroyed_ = true;
1117 }
1118
1119 gfx::Size Widget::GetMinimumSize() const {
1120   return non_client_view_ ? non_client_view_->GetMinimumSize() : gfx::Size();
1121 }
1122
1123 gfx::Size Widget::GetMaximumSize() const {
1124   return non_client_view_ ? non_client_view_->GetMaximumSize() : gfx::Size();
1125 }
1126
1127 void Widget::OnNativeWidgetMove() {
1128   widget_delegate_->OnWidgetMove();
1129   View* root = GetRootView();
1130   if (root && root->GetFocusManager()) {
1131     View* focused_view = root->GetFocusManager()->GetFocusedView();
1132     if (focused_view && focused_view->GetInputMethod())
1133       focused_view->GetInputMethod()->OnCaretBoundsChanged(focused_view);
1134   }
1135   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetBoundsChanged(
1136     this,
1137     GetWindowBoundsInScreen()));
1138 }
1139
1140 void Widget::OnNativeWidgetSizeChanged(const gfx::Size& new_size) {
1141   View* root = GetRootView();
1142   if (root) {
1143     root->SetSize(new_size);
1144     if (root->GetFocusManager()) {
1145       View* focused_view = GetRootView()->GetFocusManager()->GetFocusedView();
1146       if (focused_view && focused_view->GetInputMethod())
1147         focused_view->GetInputMethod()->OnCaretBoundsChanged(focused_view);
1148     }
1149   }
1150   SaveWindowPlacementIfInitialized();
1151
1152   FOR_EACH_OBSERVER(WidgetObserver, observers_, OnWidgetBoundsChanged(
1153     this,
1154     GetWindowBoundsInScreen()));
1155 }
1156
1157 void Widget::OnNativeWidgetWindowShowStateChanged() {
1158   SaveWindowPlacementIfInitialized();
1159 }
1160
1161 void Widget::OnNativeWidgetBeginUserBoundsChange() {
1162   widget_delegate_->OnWindowBeginUserBoundsChange();
1163 }
1164
1165 void Widget::OnNativeWidgetEndUserBoundsChange() {
1166   widget_delegate_->OnWindowEndUserBoundsChange();
1167 }
1168
1169 bool Widget::HasFocusManager() const {
1170   return !!focus_manager_.get();
1171 }
1172
1173 bool Widget::OnNativeWidgetPaintAccelerated(const gfx::Rect& dirty_region) {
1174   ui::Compositor* compositor = GetCompositor();
1175   if (!compositor)
1176     return false;
1177
1178   compositor->ScheduleRedrawRect(dirty_region);
1179   return true;
1180 }
1181
1182 void Widget::OnNativeWidgetPaint(gfx::Canvas* canvas) {
1183   // On Linux Aura, we can get here during Init() because of the
1184   // SetInitialBounds call.
1185   if (native_widget_initialized_)
1186     GetRootView()->Paint(canvas, CullSet());
1187 }
1188
1189 int Widget::GetNonClientComponent(const gfx::Point& point) {
1190   int component = non_client_view_ ?
1191       non_client_view_->NonClientHitTest(point) :
1192       HTNOWHERE;
1193
1194   if (movement_disabled_ && (component == HTCAPTION || component == HTSYSMENU))
1195     return HTNOWHERE;
1196
1197   return component;
1198 }
1199
1200 void Widget::OnKeyEvent(ui::KeyEvent* event) {
1201   SendEventToProcessor(event);
1202 }
1203
1204 // TODO(tdanderson): We should not be calling the OnMouse*() functions on
1205 //                   RootView from anywhere in Widget. Use
1206 //                   SendEventToProcessor() instead. See crbug.com/348087.
1207 void Widget::OnMouseEvent(ui::MouseEvent* event) {
1208   View* root_view = GetRootView();
1209   switch (event->type()) {
1210     case ui::ET_MOUSE_PRESSED: {
1211       last_mouse_event_was_move_ = false;
1212
1213       // We may get deleted by the time we return from OnMousePressed. So we
1214       // use an observer to make sure we are still alive.
1215       WidgetDeletionObserver widget_deletion_observer(this);
1216
1217       // Make sure we're still visible before we attempt capture as the mouse
1218       // press processing may have made the window hide (as happens with menus).
1219
1220       // It is possible for a View to show a context menu on mouse-press. Since
1221       // the menu does a capture and starts a nested message-loop, the release
1222       // would go to the menu. The next click (i.e. both mouse-press and release
1223       // events) also go to the menu. The menu (and the nested message-loop)
1224       // gets closed after this second release event. The code then resumes from
1225       // here. So make sure that the mouse-button is still down before doing a
1226       // capture.
1227       if (root_view && root_view->OnMousePressed(*event) &&
1228           widget_deletion_observer.IsWidgetAlive() && IsVisible() &&
1229           internal::NativeWidgetPrivate::IsMouseButtonDown()) {
1230         is_mouse_button_pressed_ = true;
1231         if (!native_widget_->HasCapture())
1232           native_widget_->SetCapture();
1233         event->SetHandled();
1234       }
1235       return;
1236     }
1237
1238     case ui::ET_MOUSE_RELEASED:
1239       last_mouse_event_was_move_ = false;
1240       is_mouse_button_pressed_ = false;
1241       // Release capture first, to avoid confusion if OnMouseReleased blocks.
1242       if (auto_release_capture_ && native_widget_->HasCapture()) {
1243         base::AutoReset<bool> resetter(&ignore_capture_loss_, true);
1244         native_widget_->ReleaseCapture();
1245       }
1246       if (root_view)
1247         root_view->OnMouseReleased(*event);
1248       if ((event->flags() & ui::EF_IS_NON_CLIENT) == 0)
1249         event->SetHandled();
1250       return;
1251
1252     case ui::ET_MOUSE_MOVED:
1253     case ui::ET_MOUSE_DRAGGED:
1254       if (native_widget_->HasCapture() && is_mouse_button_pressed_) {
1255         last_mouse_event_was_move_ = false;
1256         if (root_view)
1257           root_view->OnMouseDragged(*event);
1258       } else if (!last_mouse_event_was_move_ ||
1259                  last_mouse_event_position_ != event->location()) {
1260         last_mouse_event_position_ = event->location();
1261         last_mouse_event_was_move_ = true;
1262         if (root_view)
1263           root_view->OnMouseMoved(*event);
1264       }
1265       return;
1266
1267     case ui::ET_MOUSE_EXITED:
1268       last_mouse_event_was_move_ = false;
1269       if (root_view)
1270         root_view->OnMouseExited(*event);
1271       return;
1272
1273     case ui::ET_MOUSEWHEEL:
1274       if (root_view && root_view->OnMouseWheel(
1275           static_cast<const ui::MouseWheelEvent&>(*event)))
1276         event->SetHandled();
1277       return;
1278
1279     default:
1280       return;
1281   }
1282 }
1283
1284 void Widget::OnMouseCaptureLost() {
1285   if (ignore_capture_loss_)
1286     return;
1287
1288   View* root_view = GetRootView();
1289   if (root_view)
1290     root_view->OnMouseCaptureLost();
1291   is_mouse_button_pressed_ = false;
1292 }
1293
1294 void Widget::OnScrollEvent(ui::ScrollEvent* event) {
1295   ui::ScrollEvent event_copy(*event);
1296   SendEventToProcessor(&event_copy);
1297
1298   // Convert unhandled ui::ET_SCROLL events into ui::ET_MOUSEWHEEL events.
1299   if (!event_copy.handled() && event_copy.type() == ui::ET_SCROLL) {
1300     ui::MouseWheelEvent wheel(*event);
1301     OnMouseEvent(&wheel);
1302   }
1303 }
1304
1305 void Widget::OnGestureEvent(ui::GestureEvent* event) {
1306   // We explicitly do not capture here. Not capturing enables multiple widgets
1307   // to get tap events at the same time. Views (such as tab dragging) may
1308   // explicitly capture.
1309   SendEventToProcessor(event);
1310 }
1311
1312 bool Widget::ExecuteCommand(int command_id) {
1313   return widget_delegate_->ExecuteWindowsCommand(command_id);
1314 }
1315
1316 InputMethod* Widget::GetInputMethodDirect() {
1317   return input_method_.get();
1318 }
1319
1320 const std::vector<ui::Layer*>& Widget::GetRootLayers() {
1321   if (root_layers_dirty_) {
1322     root_layers_dirty_ = false;
1323     root_layers_.clear();
1324     BuildRootLayers(GetRootView(), &root_layers_);
1325   }
1326   return root_layers_;
1327 }
1328
1329 bool Widget::HasHitTestMask() const {
1330   return widget_delegate_->WidgetHasHitTestMask();
1331 }
1332
1333 void Widget::GetHitTestMask(gfx::Path* mask) const {
1334   DCHECK(mask);
1335   widget_delegate_->GetWidgetHitTestMask(mask);
1336 }
1337
1338 Widget* Widget::AsWidget() {
1339   return this;
1340 }
1341
1342 const Widget* Widget::AsWidget() const {
1343   return this;
1344 }
1345
1346 bool Widget::SetInitialFocus(ui::WindowShowState show_state) {
1347   View* v = widget_delegate_->GetInitiallyFocusedView();
1348   if (!focus_on_creation_ || show_state == ui::SHOW_STATE_INACTIVE ||
1349       show_state == ui::SHOW_STATE_MINIMIZED) {
1350     // If not focusing the window now, tell the focus manager which view to
1351     // focus when the window is restored.
1352     if (v)
1353       focus_manager_->SetStoredFocusView(v);
1354     return true;
1355   }
1356   if (v)
1357     v->RequestFocus();
1358   return !!v;
1359 }
1360
1361 ////////////////////////////////////////////////////////////////////////////////
1362 // Widget, ui::EventSource implementation:
1363 ui::EventProcessor* Widget::GetEventProcessor() {
1364   return root_view_.get();
1365 }
1366
1367 ////////////////////////////////////////////////////////////////////////////////
1368 // Widget, FocusTraversable implementation:
1369
1370 FocusSearch* Widget::GetFocusSearch() {
1371   return root_view_->GetFocusSearch();
1372 }
1373
1374 FocusTraversable* Widget::GetFocusTraversableParent() {
1375   // We are a proxy to the root view, so we should be bypassed when traversing
1376   // up and as a result this should not be called.
1377   NOTREACHED();
1378   return NULL;
1379 }
1380
1381 View* Widget::GetFocusTraversableParentView() {
1382   // We are a proxy to the root view, so we should be bypassed when traversing
1383   // up and as a result this should not be called.
1384   NOTREACHED();
1385   return NULL;
1386 }
1387
1388 ////////////////////////////////////////////////////////////////////////////////
1389 // Widget, ui::NativeThemeObserver implementation:
1390
1391 void Widget::OnNativeThemeUpdated(ui::NativeTheme* observed_theme) {
1392   DCHECK(observer_manager_.IsObserving(observed_theme));
1393
1394   ui::NativeTheme* current_native_theme = GetNativeTheme();
1395   if (!observer_manager_.IsObserving(current_native_theme)) {
1396     observer_manager_.RemoveAll();
1397     observer_manager_.Add(current_native_theme);
1398   }
1399
1400   root_view_->PropagateNativeThemeChanged(current_native_theme);
1401 }
1402
1403 ////////////////////////////////////////////////////////////////////////////////
1404 // Widget, protected:
1405
1406 internal::RootView* Widget::CreateRootView() {
1407   return new internal::RootView(this);
1408 }
1409
1410 void Widget::DestroyRootView() {
1411   non_client_view_ = NULL;
1412   root_view_.reset();
1413   // Input method has to be destroyed before focus manager.
1414   input_method_.reset();
1415 }
1416
1417 void Widget::OnDragWillStart() {
1418 }
1419
1420 void Widget::OnDragComplete() {
1421 }
1422
1423 ////////////////////////////////////////////////////////////////////////////////
1424 // Widget, private:
1425
1426 void Widget::SetInactiveRenderingDisabled(bool value) {
1427   if (value == disable_inactive_rendering_)
1428     return;
1429
1430   disable_inactive_rendering_ = value;
1431   if (non_client_view_)
1432     non_client_view_->SetInactiveRenderingDisabled(value);
1433 }
1434
1435 void Widget::SaveWindowPlacement() {
1436   // The window delegate does the actual saving for us. It seems like (judging
1437   // by go/crash) that in some circumstances we can end up here after
1438   // WM_DESTROY, at which point the window delegate is likely gone. So just
1439   // bail.
1440   if (!widget_delegate_)
1441     return;
1442
1443   ui::WindowShowState show_state = ui::SHOW_STATE_NORMAL;
1444   gfx::Rect bounds;
1445   native_widget_->GetWindowPlacement(&bounds, &show_state);
1446   widget_delegate_->SaveWindowPlacement(bounds, show_state);
1447 }
1448
1449 void Widget::SaveWindowPlacementIfInitialized() {
1450   if (native_widget_initialized_)
1451     SaveWindowPlacement();
1452 }
1453
1454 void Widget::SetInitialBounds(const gfx::Rect& bounds) {
1455   if (!non_client_view_)
1456     return;
1457
1458   gfx::Rect saved_bounds;
1459   if (GetSavedWindowPlacement(&saved_bounds, &saved_show_state_)) {
1460     if (saved_show_state_ == ui::SHOW_STATE_MAXIMIZED) {
1461       // If we're going to maximize, wait until Show is invoked to set the
1462       // bounds. That way we avoid a noticeable resize.
1463       initial_restored_bounds_ = saved_bounds;
1464     } else if (!saved_bounds.IsEmpty()) {
1465       // If the saved bounds are valid, use them.
1466       SetBounds(saved_bounds);
1467     }
1468   } else {
1469     if (bounds.IsEmpty()) {
1470       // No initial bounds supplied, so size the window to its content and
1471       // center over its parent.
1472       native_widget_->CenterWindow(non_client_view_->GetPreferredSize());
1473     } else {
1474       // Use the supplied initial bounds.
1475       SetBoundsConstrained(bounds);
1476     }
1477   }
1478 }
1479
1480 void Widget::SetInitialBoundsForFramelessWindow(const gfx::Rect& bounds) {
1481   if (bounds.IsEmpty()) {
1482     View* contents_view = GetContentsView();
1483     DCHECK(contents_view);
1484     // No initial bounds supplied, so size the window to its content and
1485     // center over its parent if preferred size is provided.
1486     gfx::Size size = contents_view->GetPreferredSize();
1487     if (!size.IsEmpty())
1488       native_widget_->CenterWindow(size);
1489   } else {
1490     // Use the supplied initial bounds.
1491     SetBoundsConstrained(bounds);
1492   }
1493 }
1494
1495 bool Widget::GetSavedWindowPlacement(gfx::Rect* bounds,
1496                                      ui::WindowShowState* show_state) {
1497   // First we obtain the window's saved show-style and store it. We need to do
1498   // this here, rather than in Show() because by the time Show() is called,
1499   // the window's size will have been reset (below) and the saved maximized
1500   // state will have been lost. Sadly there's no way to tell on Windows when
1501   // a window is restored from maximized state, so we can't more accurately
1502   // track maximized state independently of sizing information.
1503
1504   // Restore the window's placement from the controller.
1505   if (widget_delegate_->GetSavedWindowPlacement(this, bounds, show_state)) {
1506     if (!widget_delegate_->ShouldRestoreWindowSize()) {
1507       bounds->set_size(non_client_view_->GetPreferredSize());
1508     } else {
1509       gfx::Size minimum_size = GetMinimumSize();
1510       // Make sure the bounds are at least the minimum size.
1511       if (bounds->width() < minimum_size.width())
1512         bounds->set_width(minimum_size.width());
1513
1514       if (bounds->height() < minimum_size.height())
1515         bounds->set_height(minimum_size.height());
1516     }
1517     return true;
1518   }
1519   return false;
1520 }
1521
1522 scoped_ptr<InputMethod> Widget::CreateInputMethod() {
1523   scoped_ptr<InputMethod> input_method(native_widget_->CreateInputMethod());
1524   if (input_method.get())
1525     input_method->Init(this);
1526   return input_method.Pass();
1527 }
1528
1529 void Widget::ReplaceInputMethod(InputMethod* input_method) {
1530   input_method_.reset(input_method);
1531   input_method->SetDelegate(native_widget_->GetInputMethodDelegate());
1532   input_method->Init(this);
1533 }
1534
1535 namespace internal {
1536
1537 ////////////////////////////////////////////////////////////////////////////////
1538 // internal::NativeWidgetPrivate, NativeWidget implementation:
1539
1540 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
1541   return this;
1542 }
1543
1544 }  // namespace internal
1545 }  // namespace views