content/browser/renderer_host/render_widget_host_view_aura.h

   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 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/callback.h"
  14 #include "base/gtest_prod_util.h"
  15 #include "base/memory/linked_ptr.h"
  16 #include "base/memory/ref_counted.h"
  17 #include "base/memory/scoped_ptr.h"
  18 #include "base/memory/weak_ptr.h"
  19 #include "content/browser/accessibility/browser_accessibility_manager.h"
  20 #include "content/browser/compositor/delegated_frame_host.h"
  21 #include "content/browser/compositor/image_transport_factory.h"
  22 #include "content/browser/compositor/owned_mailbox.h"
  23 #include "content/browser/renderer_host/begin_frame_observer_proxy.h"
  24 #include "content/browser/renderer_host/render_widget_host_view_base.h"
  25 #include "content/common/content_export.h"
  26 #include "content/common/cursors/webcursor.h"
  27 #include "third_party/skia/include/core/SkRegion.h"
  28 #include "ui/aura/client/cursor_client_observer.h"
  29 #include "ui/aura/client/focus_change_observer.h"
  30 #include "ui/aura/window_delegate.h"
  31 #include "ui/aura/window_tree_host_observer.h"
  32 #include "ui/base/ime/text_input_client.h"
  33 #include "ui/base/touch/selection_bound.h"
  34 #include "ui/events/gestures/motion_event_aura.h"
  35 #include "ui/gfx/display_observer.h"
  36 #include "ui/gfx/geometry/insets.h"
  37 #include "ui/gfx/geometry/rect.h"
  38 #include "ui/wm/public/activation_delegate.h"
  39
  40 struct ViewHostMsg_TextInputState_Params;
  41
  42 namespace aura {
  43 class WindowTracker;
  44 namespace client {
  45 class ScopedTooltipDisabler;
  46 }
  47 }
  48
  49 namespace cc {
  50 class CopyOutputRequest;
  51 class CopyOutputResult;
  52 class DelegatedFrameData;
  53 }
  54
  55 namespace gfx {
  56 class Canvas;
  57 class Display;
  58 }
  59
  60 namespace gpu {
  61 struct Mailbox;
  62 }
  63
  64 namespace ui {
  65 class CompositorLock;
  66 class InputMethod;
  67 class LocatedEvent;
  68 class Texture;
  69 class TouchSelectionController;
  70 }
  71
  72 namespace content {
  73 #if defined(OS_WIN)
  74 class LegacyRenderWidgetHostHWND;
  75 #endif
  76
  77 class OverscrollController;
  78 class RenderFrameHostImpl;
  79 class RenderWidgetHostImpl;
  80 class RenderWidgetHostView;
  81 class TouchSelectionControllerClientAura;
  82
  83 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
  84 class CONTENT_EXPORT RenderWidgetHostViewAura
  85     : public RenderWidgetHostViewBase,
  86       public DelegatedFrameHostClient,
  87       public BeginFrameObserverProxyClient,
  88       public ui::TextInputClient,
  89       public gfx::DisplayObserver,
  90       public aura::WindowTreeHostObserver,
  91       public aura::WindowDelegate,
  92       public aura::client::ActivationDelegate,
  93       public aura::client::FocusChangeObserver,
  94       public aura::client::CursorClientObserver {
  95  public:
  96   // When |is_guest_view_hack| is true, this view isn't really the view for
  97   // the |widget|, a RenderWidgetHostViewGuest is.
  98   //
  99   // TODO(lazyboy): Remove |is_guest_view_hack| once BrowserPlugin has migrated
 100   // to use RWHVChildFrame (http://crbug.com/330264).
 101   RenderWidgetHostViewAura(RenderWidgetHost* host, bool is_guest_view_hack);
 102
 103   // RenderWidgetHostView implementation.
 104   bool OnMessageReceived(const IPC::Message& msg) override;
 105   void InitAsChild(gfx::NativeView parent_view) override;
 106   RenderWidgetHost* GetRenderWidgetHost() const override;
 107   void SetSize(const gfx::Size& size) override;
 108   void SetBounds(const gfx::Rect& rect) override;
 109   gfx::Vector2dF GetLastScrollOffset() const override;
 110   gfx::NativeView GetNativeView() const override;
 111   gfx::NativeViewId GetNativeViewId() const override;
 112   gfx::NativeViewAccessible GetNativeViewAccessible() override;
 113   ui::TextInputClient* GetTextInputClient() override;
 114   bool HasFocus() const override;
 115   bool IsSurfaceAvailableForCopy() const override;
 116   void Show() override;
 117   void Hide() override;
 118   bool IsShowing() override;
 119   gfx::Rect GetViewBounds() const override;
 120   void SetBackgroundColor(SkColor color) override;
 121   gfx::Size GetVisibleViewportSize() const override;
 122   void SetInsets(const gfx::Insets& insets) override;
 123
 124   // Overridden from RenderWidgetHostViewBase:
 125   void InitAsPopup(RenderWidgetHostView* parent_host_view,
 126                    const gfx::Rect& pos) override;
 127   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
 128   void MovePluginWindows(const std::vector<WebPluginGeometry>& moves) override;
 129   void Focus() override;
 130   void UpdateCursor(const WebCursor& cursor) override;
 131   void SetIsLoading(bool is_loading) override;
 132   void TextInputStateChanged(
 133       const ViewHostMsg_TextInputState_Params& params) override;
 134   void ImeCancelComposition() override;
 135   void ImeCompositionRangeChanged(
 136       const gfx::Range& range,
 137       const std::vector<gfx::Rect>& character_bounds) override;
 138   void RenderProcessGone(base::TerminationStatus status,
 139                          int error_code) override;
 140   void Destroy() override;
 141   void SetTooltipText(const base::string16& tooltip_text) override;
 142   void SelectionChanged(const base::string16& text,
 143                         size_t offset,
 144                         const gfx::Range& range) override;
 145   gfx::Size GetRequestedRendererSize() const override;
 146   void SelectionBoundsChanged(
 147       const ViewHostMsg_SelectionBounds_Params& params) override;
 148   void CopyFromCompositingSurface(
 149       const gfx::Rect& src_subrect,
 150       const gfx::Size& dst_size,
 151       ReadbackRequestCallback& callback,
 152       const SkColorType preferred_color_type) override;
 153   void CopyFromCompositingSurfaceToVideoFrame(
 154       const gfx::Rect& src_subrect,
 155       const scoped_refptr<media::VideoFrame>& target,
 156       const base::Callback<void(bool)>& callback) override;
 157   bool CanCopyToVideoFrame() const override;
 158   bool CanSubscribeFrame() const override;
 159   void BeginFrameSubscription(
 160       scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) override;
 161   void EndFrameSubscription() override;
 162   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
 163   void GetScreenInfo(blink::WebScreenInfo* results) override;
 164   bool GetScreenColorProfile(std::vector<char>* color_profile) override;
 165   gfx::Rect GetBoundsInRootWindow() override;
 166   void WheelEventAck(const blink::WebMouseWheelEvent& event,
 167                      InputEventAckState ack_result) override;
 168   void GestureEventAck(const blink::WebGestureEvent& event,
 169                        InputEventAckState ack_result) override;
 170   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
 171                               InputEventAckState ack_result) override;
 172   scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget() override;
 173   InputEventAckState FilterInputEvent(
 174       const blink::WebInputEvent& input_event) override;
 175   gfx::GLSurfaceHandle GetCompositingSurface() override;
 176   BrowserAccessibilityManager* CreateBrowserAccessibilityManager(
 177       BrowserAccessibilityDelegate* delegate) override;
 178   gfx::AcceleratedWidget AccessibilityGetAcceleratedWidget() override;
 179   gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible() override;
 180   void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
 181                                const SkBitmap& zoomed_bitmap) override;
 182   bool LockMouse() override;
 183   void UnlockMouse() override;
 184   void OnSwapCompositorFrame(uint32 output_surface_id,
 185                              scoped_ptr<cc::CompositorFrame> frame) override;
 186   void DidStopFlinging() override;
 187   void OnDidNavigateMainFrameToNewPage() override;
 188   uint32_t GetSurfaceIdNamespace() override;
 189   uint32_t SurfaceIdNamespaceAtPoint(const gfx::Point& point,
 190                                      gfx::Point* transformed_point) override;
 191   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
 192   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;
 193
 194 #if defined(OS_WIN)
 195   void SetParentNativeViewAccessible(
 196       gfx::NativeViewAccessible accessible_parent) override;
 197   gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 198 #endif
 199
 200   // Overridden from ui::TextInputClient:
 201   void SetCompositionText(const ui::CompositionText& composition) override;
 202   void ConfirmCompositionText() override;
 203   void ClearCompositionText() override;
 204   void InsertText(const base::string16& text) override;
 205   void InsertChar(base::char16 ch, int flags) override;
 206   ui::TextInputType GetTextInputType() const override;
 207   ui::TextInputMode GetTextInputMode() const override;
 208   int GetTextInputFlags() const override;
 209   bool CanComposeInline() const override;
 210   gfx::Rect GetCaretBounds() const override;
 211   bool GetCompositionCharacterBounds(uint32 index,
 212                                      gfx::Rect* rect) const override;
 213   bool HasCompositionText() const override;
 214   bool GetTextRange(gfx::Range* range) const override;
 215   bool GetCompositionTextRange(gfx::Range* range) const override;
 216   bool GetSelectionRange(gfx::Range* range) const override;
 217   bool SetSelectionRange(const gfx::Range& range) override;
 218   bool DeleteRange(const gfx::Range& range) override;
 219   bool GetTextFromRange(const gfx::Range& range,
 220                         base::string16* text) const override;
 221   void OnInputMethodChanged() override;
 222   bool ChangeTextDirectionAndLayoutAlignment(
 223       base::i18n::TextDirection direction) override;
 224   void ExtendSelectionAndDelete(size_t before, size_t after) override;
 225   void EnsureCaretInRect(const gfx::Rect& rect) override;
 226   bool IsEditCommandEnabled(int command_id) override;
 227   void SetEditCommandForNextKeyEvent(int command_id) override;
 228
 229   // Overridden from gfx::DisplayObserver:
 230   void OnDisplayAdded(const gfx::Display& new_display) override;
 231   void OnDisplayRemoved(const gfx::Display& old_display) override;
 232   void OnDisplayMetricsChanged(const gfx::Display& display,
 233                                uint32_t metrics) override;
 234
 235   // Overridden from aura::WindowDelegate:
 236   gfx::Size GetMinimumSize() const override;
 237   gfx::Size GetMaximumSize() const override;
 238   void OnBoundsChanged(const gfx::Rect& old_bounds,
 239                        const gfx::Rect& new_bounds) override;
 240   gfx::NativeCursor GetCursor(const gfx::Point& point) override;
 241   int GetNonClientComponent(const gfx::Point& point) const override;
 242   bool ShouldDescendIntoChildForEventHandling(
 243       aura::Window* child,
 244       const gfx::Point& location) override;
 245   bool CanFocus() override;
 246   void OnCaptureLost() override;
 247   void OnPaint(const ui::PaintContext& context) override;
 248   void OnDeviceScaleFactorChanged(float device_scale_factor) override;
 249   void OnWindowDestroying(aura::Window* window) override;
 250   void OnWindowDestroyed(aura::Window* window) override;
 251   void OnWindowTargetVisibilityChanged(bool visible) override;
 252   bool HasHitTestMask() const override;
 253   void GetHitTestMask(gfx::Path* mask) const override;
 254
 255   // Overridden from ui::EventHandler:
 256   void OnKeyEvent(ui::KeyEvent* event) override;
 257   void OnMouseEvent(ui::MouseEvent* event) override;
 258   void OnScrollEvent(ui::ScrollEvent* event) override;
 259   void OnTouchEvent(ui::TouchEvent* event) override;
 260   void OnGestureEvent(ui::GestureEvent* event) override;
 261
 262   // Overridden from aura::client::ActivationDelegate:
 263   bool ShouldActivate() const override;
 264
 265   // Overridden from aura::client::CursorClientObserver:
 266   void OnCursorVisibilityChanged(bool is_visible) override;
 267
 268   // Overridden from aura::client::FocusChangeObserver:
 269   void OnWindowFocused(aura::Window* gained_focus,
 270                        aura::Window* lost_focus) override;
 271
 272   // Overridden from aura::WindowTreeHostObserver:
 273   void OnHostMoved(const aura::WindowTreeHost* host,
 274                    const gfx::Point& new_origin) override;
 275
 276 #if defined(OS_WIN)
 277   // Sets the cutout rects from constrained windows. These are rectangles that
 278   // windowed NPAPI plugins shouldn't paint in. Overwrites any previous cutout
 279   // rects.
 280   void UpdateConstrainedWindowRects(const std::vector<gfx::Rect>& rects);
 281
 282   // Updates the cursor clip region. Used for mouse locking.
 283   void UpdateMouseLockRegion();
 284
 285   // Notification that the LegacyRenderWidgetHostHWND was destroyed.
 286   void OnLegacyWindowDestroyed();
 287 #endif
 288
 289   void DisambiguationPopupRendered(const SkBitmap& result,
 290                                    ReadbackResponse response);
 291
 292   void HideDisambiguationPopup();
 293
 294   void ProcessDisambiguationGesture(ui::GestureEvent* event);
 295
 296   void ProcessDisambiguationMouse(ui::MouseEvent* event);
 297
 298   // Method to indicate if this instance is shutting down or closing.
 299   // TODO(shrikant): Discuss around to see if it makes sense to add this method
 300   // as part of RenderWidgetHostView.
 301   bool IsClosing() const { return in_shutdown_; }
 302
 303   // Sets whether the overscroll controller should be enabled for this page.
 304   void SetOverscrollControllerEnabled(bool enabled);
 305
 306   void SnapToPhysicalPixelBoundary();
 307
 308   ui::TouchSelectionController* selection_controller() const {
 309     return selection_controller_.get();
 310   }
 311
 312   TouchSelectionControllerClientAura* selection_controller_client() const {
 313     return selection_controller_client_.get();
 314   }
 315
 316   OverscrollController* overscroll_controller() const {
 317     return overscroll_controller_.get();
 318   }
 319
 320   // Called when the context menu is about to be displayed.
 321   void OnShowContextMenu();
 322
 323   // Used in tests to set a mock client for touch selection controller. It will
 324   // create a new touch selection controller for the new client.
 325   void SetSelectionControllerClientForTest(
 326       scoped_ptr<TouchSelectionControllerClientAura> client);
 327
 328  protected:
 329   ~RenderWidgetHostViewAura() override;
 330
 331   // Exposed for tests.
 332   aura::Window* window() { return window_; }
 333
 334   DelegatedFrameHost* GetDelegatedFrameHost() const {
 335     return delegated_frame_host_.get();
 336   }
 337   const ui::MotionEventAura& pointer_state() const { return pointer_state_; }
 338
 339  private:
 340   friend class RenderWidgetHostViewAuraCopyRequestTest;
 341   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 342                            PopupRetainsCaptureAfterMouseRelease);
 343   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SetCompositionText);
 344   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventState);
 345   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 346                            TouchEventPositionsArentRounded);
 347   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventSyncAsync);
 348   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, Resize);
 349   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SwapNotifiesWindow);
 350   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, RecreateLayers);
 351   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 352                            SkippedDelegatedFrames);
 353   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, OutputSurfaceIdChange);
 354   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 355                            DiscardDelegatedFrames);
 356   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 357                            DiscardDelegatedFramesWithLocking);
 358   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SoftwareDPIChange);
 359   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 360                            UpdateCursorIfOverSelf);
 361   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 362                            VisibleViewportTest);
 363   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 364                            OverscrollResetsOnBlur);
 365   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 366                            FinishCompositionByMouse);
 367   FRIEND_TEST_ALL_PREFIXES(WebContentsViewAuraTest,
 368                            WebContentsViewReparent);
 369
 370   class WindowObserver;
 371   friend class WindowObserver;
 372
 373   class WindowAncestorObserver;
 374   friend class WindowAncestorObserver;
 375
 376   void UpdateCursorIfOverSelf();
 377
 378   // Tracks whether SnapToPhysicalPixelBoundary() has been called.
 379   bool has_snapped_to_boundary() { return has_snapped_to_boundary_; }
 380   void ResetHasSnappedToBoundary() { has_snapped_to_boundary_ = false; }
 381
 382   // Set the bounds of the window and handle size changes.  Assumes the caller
 383   // has already adjusted the origin of |rect| to conform to whatever coordinate
 384   // space is required by the aura::Window.
 385   void InternalSetBounds(const gfx::Rect& rect);
 386
 387 #if defined(OS_WIN)
 388   bool UsesNativeWindowFrame() const;
 389 #endif
 390
 391   ui::InputMethod* GetInputMethod() const;
 392
 393   // Sends shutdown request.
 394   void Shutdown();
 395
 396   // Returns whether the widget needs an input grab to work properly.
 397   bool NeedsInputGrab();
 398
 399   // Returns whether the widget needs to grab mouse capture to work properly.
 400   bool NeedsMouseCapture();
 401
 402   // Confirm existing composition text in the webpage and ask the input method
 403   // to cancel its ongoing composition session.
 404   void FinishImeCompositionSession();
 405
 406   // This method computes movementX/Y and keeps track of mouse location for
 407   // mouse lock on all mouse move events.
 408   void ModifyEventMovementAndCoords(blink::WebMouseEvent* event);
 409
 410   // Sends an IPC to the renderer process to communicate whether or not
 411   // the mouse cursor is visible anywhere on the screen.
 412   void NotifyRendererOfCursorVisibilityState(bool is_visible);
 413
 414   // If |clip| is non-empty and and doesn't contain |rect| or |clip| is empty
 415   // SchedulePaint() is invoked for |rect|.
 416   void SchedulePaintIfNotInClip(const gfx::Rect& rect, const gfx::Rect& clip);
 417
 418   // Helper method to determine if, in mouse locked mode, the cursor should be
 419   // moved to center.
 420   bool ShouldMoveToCenter();
 421
 422   // Called after |window_| is parented to a WindowEventDispatcher.
 423   void AddedToRootWindow();
 424
 425   // Called prior to removing |window_| from a WindowEventDispatcher.
 426   void RemovingFromRootWindow();
 427
 428   // DelegatedFrameHostClient implementation.
 429   ui::Layer* DelegatedFrameHostGetLayer() const override;
 430   bool DelegatedFrameHostIsVisible() const override;
 431   gfx::Size DelegatedFrameHostDesiredSizeInDIP() const override;
 432   bool DelegatedFrameCanCreateResizeLock() const override;
 433   scoped_ptr<ResizeLock> DelegatedFrameHostCreateResizeLock(
 434       bool defer_compositor_lock) override;
 435   void DelegatedFrameHostResizeLockWasReleased() override;
 436   void DelegatedFrameHostSendCompositorSwapAck(
 437       int output_surface_id,
 438       const cc::CompositorFrameAck& ack) override;
 439   void DelegatedFrameHostSendReclaimCompositorResources(
 440       int output_surface_id,
 441       const cc::CompositorFrameAck& ack) override;
 442   void DelegatedFrameHostOnLostCompositorResources() override;
 443   void DelegatedFrameHostUpdateVSyncParameters(
 444       const base::TimeTicks& timebase,
 445       const base::TimeDelta& interval) override;
 446
 447   // BeginFrameObserverProxyClient implementation.
 448   void SendBeginFrame(const cc::BeginFrameArgs& args) override;
 449
 450   // Detaches |this| from the input method object.
 451   void DetachFromInputMethod();
 452
 453   // Before calling RenderWidgetHost::ForwardKeyboardEvent(), this method
 454   // calls our keybindings handler against the event and send matched
 455   // edit commands to renderer instead.
 456   void ForwardKeyboardEvent(const NativeWebKeyboardEvent& event);
 457
 458   // Dismisses a Web Popup on a mouse or touch press outside the popup and its
 459   // parent.
 460   void ApplyEventFilterForPopupExit(ui::LocatedEvent* event);
 461
 462   // Converts |rect| from window coordinate to screen coordinate.
 463   gfx::Rect ConvertRectToScreen(const gfx::Rect& rect) const;
 464
 465   // Converts |rect| from screen coordinate to window coordinate.
 466   gfx::Rect ConvertRectFromScreen(const gfx::Rect& rect) const;
 467
 468   // Helper function to set keyboard focus to the main window.
 469   void SetKeyboardFocus();
 470
 471   // Called when RenderWidget wants to start BeginFrame scheduling or stop.
 472   void OnSetNeedsBeginFrames(bool needs_begin_frames);
 473
 474   RenderFrameHostImpl* GetFocusedFrame();
 475
 476   // Returns true if the |event| passed in can be forwarded to the renderer.
 477   bool CanRendererHandleEvent(const ui::MouseEvent* event,
 478                               bool mouse_locked,
 479                               bool selection_popup);
 480
 481   // Called when the parent window bounds change.
 482   void HandleParentBoundsChanged();
 483
 484   // Called when the parent window hierarchy for our window changes.
 485   void ParentHierarchyChanged();
 486
 487   // Helper function to be called whenever new selection information is
 488   // received. It will update selection controller.
 489   void SelectionUpdated(bool is_editable,
 490                         bool is_empty_text_form_control,
 491                         const ui::SelectionBound& start,
 492                         const ui::SelectionBound& end);
 493
 494   // Helper function to create a selection controller.
 495   void CreateSelectionController();
 496
 497   // Performs gesture handling needed for touch text selection. Sets event as
 498   // handled if it should not be further processed.
 499   void HandleGestureForTouchSelection(ui::GestureEvent* event);
 500
 501   // The model object.
 502   RenderWidgetHostImpl* const host_;
 503
 504   aura::Window* window_;
 505
 506   scoped_ptr<DelegatedFrameHost> delegated_frame_host_;
 507
 508   scoped_ptr<WindowObserver> window_observer_;
 509
 510   // Tracks the ancestors of the RWHVA window for window location changes.
 511   scoped_ptr<WindowAncestorObserver> ancestor_window_observer_;
 512
 513   // Are we in the process of closing?  Tracked so fullscreen views can avoid
 514   // sending a second shutdown request to the host when they lose the focus
 515   // after requesting shutdown for another reason (e.g. Escape key).
 516   bool in_shutdown_;
 517
 518   // True if in the process of handling a window bounds changed notification.
 519   bool in_bounds_changed_;
 520
 521   // Is this a fullscreen view?
 522   bool is_fullscreen_;
 523
 524   // Our parent host view, if this is a popup.  NULL otherwise.
 525   RenderWidgetHostViewAura* popup_parent_host_view_;
 526
 527   // Our child popup host. NULL if we do not have a child popup.
 528   RenderWidgetHostViewAura* popup_child_host_view_;
 529
 530   class EventFilterForPopupExit;
 531   friend class EventFilterForPopupExit;
 532   scoped_ptr<ui::EventHandler> event_filter_for_popup_exit_;
 533
 534   // True when content is being loaded. Used to show an hourglass cursor.
 535   bool is_loading_;
 536
 537   // The cursor for the page. This is passed up from the renderer.
 538   WebCursor current_cursor_;
 539
 540   // Stores the current state of the active pointers targeting this
 541   // object.
 542   ui::MotionEventAura pointer_state_;
 543
 544   // The current text input type.
 545   ui::TextInputType text_input_type_;
 546   // The current text input mode corresponding to HTML5 inputmode attribute.
 547   ui::TextInputMode text_input_mode_;
 548   // The current text input flags.
 549   int text_input_flags_;
 550   bool can_compose_inline_;
 551
 552   // Bounds for the selection.
 553   ui::SelectionBound selection_anchor_;
 554   ui::SelectionBound selection_focus_;
 555
 556   // The current composition character bounds.
 557   std::vector<gfx::Rect> composition_character_bounds_;
 558
 559   // Indicates if there is onging composition text.
 560   bool has_composition_text_;
 561
 562   // Whether return characters should be passed on to the RenderWidgetHostImpl.
 563   bool accept_return_character_;
 564
 565   // Current tooltip text.
 566   base::string16 tooltip_;
 567
 568   // The size and scale of the last software compositing frame that was swapped.
 569   gfx::Size last_swapped_software_frame_size_;
 570   float last_swapped_software_frame_scale_factor_;
 571
 572   // If non-NULL we're in OnPaint() and this is the supplied canvas.
 573   gfx::Canvas* paint_canvas_;
 574
 575   // Used to record the last position of the mouse.
 576   // While the mouse is locked, they store the last known position just as mouse
 577   // lock was entered.
 578   // Relative to the upper-left corner of the view.
 579   gfx::Point unlocked_mouse_position_;
 580   // Relative to the upper-left corner of the screen.
 581   gfx::Point unlocked_global_mouse_position_;
 582   // Last cursor position relative to screen. Used to compute movementX/Y.
 583   gfx::Point global_mouse_position_;
 584   // In mouse locked mode, we synthetically move the mouse cursor to the center
 585   // of the window when it reaches the window borders to avoid it going outside.
 586   // This flag is used to differentiate between these synthetic mouse move
 587   // events vs. normal mouse move events.
 588   bool synthetic_move_sent_;
 589
 590   // Used to track the state of the window we're created from. Only used when
 591   // created fullscreen.
 592   scoped_ptr<aura::WindowTracker> host_tracker_;
 593
 594   // Used to track the last cursor visibility update that was sent to the
 595   // renderer via NotifyRendererOfCursorVisibilityState().
 596   enum CursorVisibilityState {
 597     UNKNOWN,
 598     VISIBLE,
 599     NOT_VISIBLE,
 600   };
 601   CursorVisibilityState cursor_visibility_state_in_renderer_;
 602
 603 #if defined(OS_WIN)
 604   // The list of rectangles from constrained windows over this view. Windowed
 605   // NPAPI plugins shouldn't draw over them.
 606   std::vector<gfx::Rect> constrained_rects_;
 607
 608   typedef std::map<HWND, WebPluginGeometry> PluginWindowMoves;
 609   // Contains information about each windowed plugin's clip and cutout rects (
 610   // from the renderer). This is needed because when the transient windows
 611   // over this view changes, we need this information in order to create a new
 612   // region for the HWND.
 613   PluginWindowMoves plugin_window_moves_;
 614
 615   // The LegacyRenderWidgetHostHWND class provides a dummy HWND which is used
 616   // for accessibility, as the container for windowless plugins like
 617   // Flash/Silverlight, etc and for legacy drivers for trackpoints/trackpads,
 618   // etc.
 619   // The LegacyRenderWidgetHostHWND instance is created during the first call
 620   // to RenderWidgetHostViewAura::InternalSetBounds. The instance is destroyed
 621   // when the LegacyRenderWidgetHostHWND hwnd is destroyed.
 622   content::LegacyRenderWidgetHostHWND* legacy_render_widget_host_HWND_;
 623
 624   // Set to true if the legacy_render_widget_host_HWND_ instance was destroyed
 625   // by Windows. This could happen if the browser window was destroyed by
 626   // DestroyWindow for e.g. This flag helps ensure that we don't try to create
 627   // the LegacyRenderWidgetHostHWND instance again as that would be a futile
 628   // exercise.
 629   bool legacy_window_destroyed_;
 630
 631   // Set to true when a context menu is being displayed. Reset to false when
 632   // a mouse leave is received in this context.
 633   bool showing_context_menu_;
 634 #endif
 635
 636   bool has_snapped_to_boundary_;
 637
 638   scoped_ptr<TouchSelectionControllerClientAura> selection_controller_client_;
 639   scoped_ptr<ui::TouchSelectionController> selection_controller_;
 640
 641   scoped_ptr<OverscrollController> overscroll_controller_;
 642
 643   // The last scroll offset of the view.
 644   gfx::Vector2dF last_scroll_offset_;
 645
 646   gfx::Insets insets_;
 647
 648   std::vector<ui::LatencyInfo> software_latency_info_;
 649
 650   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 651
 652   // True when this view acts as a platform view hack for a
 653   // RenderWidgetHostViewGuest.
 654   bool is_guest_view_hack_;
 655
 656   gfx::Rect disambiguation_target_rect_;
 657
 658   // The last scroll offset when we start to render the link disambiguation
 659   // view, so we can ensure the window hasn't moved between copying from the
 660   // compositing surface and showing the disambiguation popup.
 661   gfx::Vector2dF disambiguation_scroll_offset_;
 662
 663   BeginFrameObserverProxy begin_frame_observer_proxy_;
 664
 665   // This flag when set ensures that we send over a notification to blink that
 666   // the current view has focus. Defaults to false.
 667   bool set_focus_on_mouse_down_;
 668
 669   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 670
 671   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 672 };
 673
 674 }  // namespace content
 675
 676 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_