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/base/touch/touch_editing_controller.h"
  35 #include "ui/events/gestures/motion_event_aura.h"
  36 #include "ui/gfx/display_observer.h"
  37 #include "ui/gfx/geometry/insets.h"
  38 #include "ui/gfx/geometry/rect.h"
  39 #include "ui/wm/public/activation_delegate.h"
  40
  41 struct ViewHostMsg_TextInputState_Params;
  42
  43 namespace aura {
  44 class WindowTracker;
  45 namespace client {
  46 class ScopedTooltipDisabler;
  47 }
  48 }
  49
  50 namespace cc {
  51 class CopyOutputRequest;
  52 class CopyOutputResult;
  53 class DelegatedFrameData;
  54 }
  55
  56 namespace gfx {
  57 class Canvas;
  58 class Display;
  59 }
  60
  61 namespace gpu {
  62 struct Mailbox;
  63 }
  64
  65 namespace ui {
  66 class CompositorLock;
  67 class InputMethod;
  68 class LocatedEvent;
  69 class Texture;
  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
  82 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
  83 class CONTENT_EXPORT RenderWidgetHostViewAura
  84     : public RenderWidgetHostViewBase,
  85       public DelegatedFrameHostClient,
  86       public BeginFrameObserverProxyClient,
  87       public ui::TextInputClient,
  88       public gfx::DisplayObserver,
  89       public aura::WindowTreeHostObserver,
  90       public aura::WindowDelegate,
  91       public aura::client::ActivationDelegate,
  92       public aura::client::FocusChangeObserver,
  93       public aura::client::CursorClientObserver {
  94  public:
  95   // Displays and controls touch editing elements such as selection handles.
  96   class TouchEditingClient {
  97    public:
  98     TouchEditingClient() {}
  99
 100     // Tells the client to start showing touch editing handles.
 101     virtual void StartTouchEditing() = 0;
 102
 103     // Notifies the client that touch editing is no longer needed. |quick|
 104     // determines whether the handles should fade out quickly or slowly.
 105     virtual void EndTouchEditing(bool quick) = 0;
 106
 107     // Notifies the client that the selection bounds need to be updated.
 108     virtual void OnSelectionOrCursorChanged(
 109         const ui::SelectionBound& anchor,
 110         const ui::SelectionBound& focus) = 0;
 111
 112     // Notifies the client that the current text input type as changed.
 113     virtual void OnTextInputTypeChanged(ui::TextInputType type) = 0;
 114
 115     // Notifies the client that an input event is about to be sent to the
 116     // renderer. Returns true if the client wants to stop event propagation.
 117     virtual bool HandleInputEvent(const ui::Event* event) = 0;
 118
 119     // Notifies the client that a gesture event ack was received.
 120     virtual void GestureEventAck(int gesture_event_type) = 0;
 121
 122     // Notifies the client that the fling has ended, so it can activate touch
 123     // editing if needed.
 124     virtual void DidStopFlinging() = 0;
 125
 126     // This is called when the view is destroyed, so that the client can
 127     // perform any necessary clean-up.
 128     virtual void OnViewDestroyed() = 0;
 129
 130    protected:
 131     virtual ~TouchEditingClient() {}
 132   };
 133
 134   void set_touch_editing_client(TouchEditingClient* client) {
 135     touch_editing_client_ = client;
 136   }
 137
 138   // When |is_guest_view_hack| is true, this view isn't really the view for
 139   // the |widget|, a RenderWidgetHostViewGuest is.
 140   //
 141   // TODO(lazyboy): Remove |is_guest_view_hack| once BrowserPlugin has migrated
 142   // to use RWHVChildFrame (http://crbug.com/330264).
 143   RenderWidgetHostViewAura(RenderWidgetHost* host, bool is_guest_view_hack);
 144
 145   // RenderWidgetHostView implementation.
 146   bool OnMessageReceived(const IPC::Message& msg) override;
 147   void InitAsChild(gfx::NativeView parent_view) override;
 148   RenderWidgetHost* GetRenderWidgetHost() const override;
 149   void SetSize(const gfx::Size& size) override;
 150   void SetBounds(const gfx::Rect& rect) override;
 151   gfx::Vector2dF GetLastScrollOffset() const override;
 152   gfx::NativeView GetNativeView() const override;
 153   gfx::NativeViewId GetNativeViewId() const override;
 154   gfx::NativeViewAccessible GetNativeViewAccessible() override;
 155   ui::TextInputClient* GetTextInputClient() override;
 156   bool HasFocus() const override;
 157   bool IsSurfaceAvailableForCopy() const override;
 158   void Show() override;
 159   void Hide() override;
 160   bool IsShowing() override;
 161   gfx::Rect GetViewBounds() const override;
 162   void SetBackgroundColor(SkColor color) override;
 163   gfx::Size GetVisibleViewportSize() const override;
 164   void SetInsets(const gfx::Insets& insets) override;
 165
 166   // Overridden from RenderWidgetHostViewBase:
 167   void InitAsPopup(RenderWidgetHostView* parent_host_view,
 168                    const gfx::Rect& pos) override;
 169   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
 170   void MovePluginWindows(const std::vector<WebPluginGeometry>& moves) override;
 171   void Focus() override;
 172   void UpdateCursor(const WebCursor& cursor) override;
 173   void SetIsLoading(bool is_loading) override;
 174   void TextInputStateChanged(
 175       const ViewHostMsg_TextInputState_Params& params) override;
 176   void ImeCancelComposition() override;
 177   void ImeCompositionRangeChanged(
 178       const gfx::Range& range,
 179       const std::vector<gfx::Rect>& character_bounds) override;
 180   void RenderProcessGone(base::TerminationStatus status,
 181                          int error_code) override;
 182   void Destroy() override;
 183   void SetTooltipText(const base::string16& tooltip_text) override;
 184   void SelectionChanged(const base::string16& text,
 185                         size_t offset,
 186                         const gfx::Range& range) override;
 187   gfx::Size GetRequestedRendererSize() const override;
 188   void SelectionBoundsChanged(
 189       const ViewHostMsg_SelectionBounds_Params& params) override;
 190   void CopyFromCompositingSurface(
 191       const gfx::Rect& src_subrect,
 192       const gfx::Size& dst_size,
 193       ReadbackRequestCallback& callback,
 194       const SkColorType preferred_color_type) override;
 195   void CopyFromCompositingSurfaceToVideoFrame(
 196       const gfx::Rect& src_subrect,
 197       const scoped_refptr<media::VideoFrame>& target,
 198       const base::Callback<void(bool)>& callback) override;
 199   bool CanCopyToVideoFrame() const override;
 200   bool CanSubscribeFrame() const override;
 201   void BeginFrameSubscription(
 202       scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) override;
 203   void EndFrameSubscription() override;
 204   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
 205   void GetScreenInfo(blink::WebScreenInfo* results) override;
 206   gfx::Rect GetBoundsInRootWindow() override;
 207   void WheelEventAck(const blink::WebMouseWheelEvent& event,
 208                      InputEventAckState ack_result) override;
 209   void GestureEventAck(const blink::WebGestureEvent& event,
 210                        InputEventAckState ack_result) override;
 211   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
 212                               InputEventAckState ack_result) override;
 213   scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget() override;
 214   InputEventAckState FilterInputEvent(
 215       const blink::WebInputEvent& input_event) override;
 216   gfx::GLSurfaceHandle GetCompositingSurface() override;
 217   BrowserAccessibilityManager* CreateBrowserAccessibilityManager(
 218       BrowserAccessibilityDelegate* delegate) override;
 219   gfx::AcceleratedWidget AccessibilityGetAcceleratedWidget() override;
 220   gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible() override;
 221   void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
 222                                const SkBitmap& zoomed_bitmap) override;
 223   bool LockMouse() override;
 224   void UnlockMouse() override;
 225   void OnSwapCompositorFrame(uint32 output_surface_id,
 226                              scoped_ptr<cc::CompositorFrame> frame) override;
 227   void DidStopFlinging() override;
 228   void OnDidNavigateMainFrameToNewPage() override;
 229   uint32_t GetSurfaceIdNamespace() override;
 230
 231 #if defined(OS_WIN)
 232   void SetParentNativeViewAccessible(
 233       gfx::NativeViewAccessible accessible_parent) override;
 234   gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 235 #endif
 236
 237   // Overridden from ui::TextInputClient:
 238   void SetCompositionText(const ui::CompositionText& composition) override;
 239   void ConfirmCompositionText() override;
 240   void ClearCompositionText() override;
 241   void InsertText(const base::string16& text) override;
 242   void InsertChar(base::char16 ch, int flags) override;
 243   ui::TextInputType GetTextInputType() const override;
 244   ui::TextInputMode GetTextInputMode() const override;
 245   int GetTextInputFlags() const override;
 246   bool CanComposeInline() const override;
 247   gfx::Rect GetCaretBounds() const override;
 248   bool GetCompositionCharacterBounds(uint32 index,
 249                                      gfx::Rect* rect) const override;
 250   bool HasCompositionText() const override;
 251   bool GetTextRange(gfx::Range* range) const override;
 252   bool GetCompositionTextRange(gfx::Range* range) const override;
 253   bool GetSelectionRange(gfx::Range* range) const override;
 254   bool SetSelectionRange(const gfx::Range& range) override;
 255   bool DeleteRange(const gfx::Range& range) override;
 256   bool GetTextFromRange(const gfx::Range& range,
 257                         base::string16* text) const override;
 258   void OnInputMethodChanged() override;
 259   bool ChangeTextDirectionAndLayoutAlignment(
 260       base::i18n::TextDirection direction) override;
 261   void ExtendSelectionAndDelete(size_t before, size_t after) override;
 262   void EnsureCaretInRect(const gfx::Rect& rect) override;
 263   bool IsEditCommandEnabled(int command_id) override;
 264   void SetEditCommandForNextKeyEvent(int command_id) override;
 265
 266   // Overridden from gfx::DisplayObserver:
 267   void OnDisplayAdded(const gfx::Display& new_display) override;
 268   void OnDisplayRemoved(const gfx::Display& old_display) override;
 269   void OnDisplayMetricsChanged(const gfx::Display& display,
 270                                uint32_t metrics) override;
 271
 272   // Overridden from aura::WindowDelegate:
 273   gfx::Size GetMinimumSize() const override;
 274   gfx::Size GetMaximumSize() const override;
 275   void OnBoundsChanged(const gfx::Rect& old_bounds,
 276                        const gfx::Rect& new_bounds) override;
 277   gfx::NativeCursor GetCursor(const gfx::Point& point) override;
 278   int GetNonClientComponent(const gfx::Point& point) const override;
 279   bool ShouldDescendIntoChildForEventHandling(
 280       aura::Window* child,
 281       const gfx::Point& location) override;
 282   bool CanFocus() override;
 283   void OnCaptureLost() override;
 284   void OnPaint(const ui::PaintContext& context) override;
 285   void OnDeviceScaleFactorChanged(float device_scale_factor) override;
 286   void OnWindowDestroying(aura::Window* window) override;
 287   void OnWindowDestroyed(aura::Window* window) override;
 288   void OnWindowTargetVisibilityChanged(bool visible) override;
 289   bool HasHitTestMask() const override;
 290   void GetHitTestMask(gfx::Path* mask) const override;
 291
 292   // Overridden from ui::EventHandler:
 293   void OnKeyEvent(ui::KeyEvent* event) override;
 294   void OnMouseEvent(ui::MouseEvent* event) override;
 295   void OnScrollEvent(ui::ScrollEvent* event) override;
 296   void OnTouchEvent(ui::TouchEvent* event) override;
 297   void OnGestureEvent(ui::GestureEvent* event) override;
 298
 299   // Overridden from aura::client::ActivationDelegate:
 300   bool ShouldActivate() const override;
 301
 302   // Overridden from aura::client::CursorClientObserver:
 303   void OnCursorVisibilityChanged(bool is_visible) override;
 304
 305   // Overridden from aura::client::FocusChangeObserver:
 306   void OnWindowFocused(aura::Window* gained_focus,
 307                        aura::Window* lost_focus) override;
 308
 309   // Overridden from aura::WindowTreeHostObserver:
 310   void OnHostMoved(const aura::WindowTreeHost* host,
 311                    const gfx::Point& new_origin) override;
 312
 313 #if defined(OS_WIN)
 314   // Sets the cutout rects from constrained windows. These are rectangles that
 315   // windowed NPAPI plugins shouldn't paint in. Overwrites any previous cutout
 316   // rects.
 317   void UpdateConstrainedWindowRects(const std::vector<gfx::Rect>& rects);
 318
 319   // Updates the cursor clip region. Used for mouse locking.
 320   void UpdateMouseLockRegion();
 321
 322   // Notification that the LegacyRenderWidgetHostHWND was destroyed.
 323   void OnLegacyWindowDestroyed();
 324 #endif
 325
 326   void DisambiguationPopupRendered(const SkBitmap& result,
 327                                    ReadbackResponse response);
 328
 329   void HideDisambiguationPopup();
 330
 331   void ProcessDisambiguationGesture(ui::GestureEvent* event);
 332
 333   void ProcessDisambiguationMouse(ui::MouseEvent* event);
 334
 335   // Method to indicate if this instance is shutting down or closing.
 336   // TODO(shrikant): Discuss around to see if it makes sense to add this method
 337   // as part of RenderWidgetHostView.
 338   bool IsClosing() const { return in_shutdown_; }
 339
 340   // Sets whether the overscroll controller should be enabled for this page.
 341   void SetOverscrollControllerEnabled(bool enabled);
 342
 343   void SnapToPhysicalPixelBoundary();
 344
 345   OverscrollController* overscroll_controller() const {
 346     return overscroll_controller_.get();
 347   }
 348
 349   // Called when the context menu is about to be displayed.
 350   void OnShowContextMenu();
 351
 352  protected:
 353   ~RenderWidgetHostViewAura() override;
 354
 355   // Exposed for tests.
 356   aura::Window* window() { return window_; }
 357
 358   DelegatedFrameHost* GetDelegatedFrameHost() const {
 359     return delegated_frame_host_.get();
 360   }
 361   const ui::MotionEventAura& pointer_state() const { return pointer_state_; }
 362
 363  private:
 364   friend class RenderWidgetHostViewAuraCopyRequestTest;
 365   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 366                            PopupRetainsCaptureAfterMouseRelease);
 367   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SetCompositionText);
 368   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventState);
 369   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 370                            TouchEventPositionsArentRounded);
 371   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventSyncAsync);
 372   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, Resize);
 373   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SwapNotifiesWindow);
 374   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, RecreateLayers);
 375   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 376                            SkippedDelegatedFrames);
 377   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, OutputSurfaceIdChange);
 378   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 379                            DiscardDelegatedFrames);
 380   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 381                            DiscardDelegatedFramesWithLocking);
 382   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SoftwareDPIChange);
 383   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 384                            UpdateCursorIfOverSelf);
 385   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 386                            VisibleViewportTest);
 387   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 388                            OverscrollResetsOnBlur);
 389   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 390                            FinishCompositionByMouse);
 391   FRIEND_TEST_ALL_PREFIXES(WebContentsViewAuraTest,
 392                            WebContentsViewReparent);
 393
 394   class WindowObserver;
 395   friend class WindowObserver;
 396
 397   class WindowAncestorObserver;
 398   friend class WindowAncestorObserver;
 399
 400   void UpdateCursorIfOverSelf();
 401
 402   // Tracks whether SnapToPhysicalPixelBoundary() has been called.
 403   bool has_snapped_to_boundary() { return has_snapped_to_boundary_; }
 404   void ResetHasSnappedToBoundary() { has_snapped_to_boundary_ = false; }
 405
 406   // Set the bounds of the window and handle size changes.  Assumes the caller
 407   // has already adjusted the origin of |rect| to conform to whatever coordinate
 408   // space is required by the aura::Window.
 409   void InternalSetBounds(const gfx::Rect& rect);
 410
 411 #if defined(OS_WIN)
 412   bool UsesNativeWindowFrame() const;
 413 #endif
 414
 415   ui::InputMethod* GetInputMethod() const;
 416
 417   // Sends shutdown request.
 418   void Shutdown();
 419
 420   // Returns whether the widget needs an input grab to work properly.
 421   bool NeedsInputGrab();
 422
 423   // Returns whether the widget needs to grab mouse capture to work properly.
 424   bool NeedsMouseCapture();
 425
 426   // Confirm existing composition text in the webpage and ask the input method
 427   // to cancel its ongoing composition session.
 428   void FinishImeCompositionSession();
 429
 430   // This method computes movementX/Y and keeps track of mouse location for
 431   // mouse lock on all mouse move events.
 432   void ModifyEventMovementAndCoords(blink::WebMouseEvent* event);
 433
 434   // Sends an IPC to the renderer process to communicate whether or not
 435   // the mouse cursor is visible anywhere on the screen.
 436   void NotifyRendererOfCursorVisibilityState(bool is_visible);
 437
 438   // If |clip| is non-empty and and doesn't contain |rect| or |clip| is empty
 439   // SchedulePaint() is invoked for |rect|.
 440   void SchedulePaintIfNotInClip(const gfx::Rect& rect, const gfx::Rect& clip);
 441
 442   // Helper method to determine if, in mouse locked mode, the cursor should be
 443   // moved to center.
 444   bool ShouldMoveToCenter();
 445
 446   // Called after |window_| is parented to a WindowEventDispatcher.
 447   void AddedToRootWindow();
 448
 449   // Called prior to removing |window_| from a WindowEventDispatcher.
 450   void RemovingFromRootWindow();
 451
 452   // DelegatedFrameHostClient implementation.
 453   ui::Layer* DelegatedFrameHostGetLayer() const override;
 454   bool DelegatedFrameHostIsVisible() const override;
 455   gfx::Size DelegatedFrameHostDesiredSizeInDIP() const override;
 456   bool DelegatedFrameCanCreateResizeLock() const override;
 457   scoped_ptr<ResizeLock> DelegatedFrameHostCreateResizeLock(
 458       bool defer_compositor_lock) override;
 459   void DelegatedFrameHostResizeLockWasReleased() override;
 460   void DelegatedFrameHostSendCompositorSwapAck(
 461       int output_surface_id,
 462       const cc::CompositorFrameAck& ack) override;
 463   void DelegatedFrameHostSendReclaimCompositorResources(
 464       int output_surface_id,
 465       const cc::CompositorFrameAck& ack) override;
 466   void DelegatedFrameHostOnLostCompositorResources() override;
 467   void DelegatedFrameHostUpdateVSyncParameters(
 468       const base::TimeTicks& timebase,
 469       const base::TimeDelta& interval) override;
 470
 471   // BeginFrameObserverProxyClient implementation.
 472   void SendBeginFrame(const cc::BeginFrameArgs& args) override;
 473
 474   // Detaches |this| from the input method object.
 475   void DetachFromInputMethod();
 476
 477   // Before calling RenderWidgetHost::ForwardKeyboardEvent(), this method
 478   // calls our keybindings handler against the event and send matched
 479   // edit commands to renderer instead.
 480   void ForwardKeyboardEvent(const NativeWebKeyboardEvent& event);
 481
 482   // Dismisses a Web Popup on a mouse or touch press outside the popup and its
 483   // parent.
 484   void ApplyEventFilterForPopupExit(ui::LocatedEvent* event);
 485
 486   // Converts |rect| from window coordinate to screen coordinate.
 487   gfx::Rect ConvertRectToScreen(const gfx::Rect& rect) const;
 488
 489   // Converts |rect| from screen coordinate to window coordinate.
 490   gfx::Rect ConvertRectFromScreen(const gfx::Rect& rect) const;
 491
 492   // Helper function to set keyboard focus to the main window.
 493   void SetKeyboardFocus();
 494
 495   // Called when RenderWidget wants to start BeginFrame scheduling or stop.
 496   void OnSetNeedsBeginFrames(bool needs_begin_frames);
 497
 498   RenderFrameHostImpl* GetFocusedFrame();
 499
 500   // Returns true if the |event| passed in can be forwarded to the renderer.
 501   bool CanRendererHandleEvent(const ui::MouseEvent* event,
 502                               bool mouse_locked,
 503                               bool selection_popup);
 504
 505   // Called when the parent window bounds change.
 506   void HandleParentBoundsChanged();
 507
 508   // Called when the parent window hierarchy for our window changes.
 509   void ParentHierarchyChanged();
 510
 511   // The model object.
 512   RenderWidgetHostImpl* host_;
 513
 514   aura::Window* window_;
 515
 516   scoped_ptr<DelegatedFrameHost> delegated_frame_host_;
 517
 518   scoped_ptr<WindowObserver> window_observer_;
 519
 520   // Tracks the ancestors of the RWHVA window for window location changes.
 521   scoped_ptr<WindowAncestorObserver> ancestor_window_observer_;
 522
 523   // Are we in the process of closing?  Tracked so fullscreen views can avoid
 524   // sending a second shutdown request to the host when they lose the focus
 525   // after requesting shutdown for another reason (e.g. Escape key).
 526   bool in_shutdown_;
 527
 528   // True if in the process of handling a window bounds changed notification.
 529   bool in_bounds_changed_;
 530
 531   // Is this a fullscreen view?
 532   bool is_fullscreen_;
 533
 534   // Our parent host view, if this is a popup.  NULL otherwise.
 535   RenderWidgetHostViewAura* popup_parent_host_view_;
 536
 537   // Our child popup host. NULL if we do not have a child popup.
 538   RenderWidgetHostViewAura* popup_child_host_view_;
 539
 540   class EventFilterForPopupExit;
 541   friend class EventFilterForPopupExit;
 542   scoped_ptr<ui::EventHandler> event_filter_for_popup_exit_;
 543
 544   // True when content is being loaded. Used to show an hourglass cursor.
 545   bool is_loading_;
 546
 547   // The cursor for the page. This is passed up from the renderer.
 548   WebCursor current_cursor_;
 549
 550   // Stores the current state of the active pointers targeting this
 551   // object.
 552   ui::MotionEventAura pointer_state_;
 553
 554   // The current text input type.
 555   ui::TextInputType text_input_type_;
 556   // The current text input mode corresponding to HTML5 inputmode attribute.
 557   ui::TextInputMode text_input_mode_;
 558   // The current text input flags.
 559   int text_input_flags_;
 560   bool can_compose_inline_;
 561
 562   // Bounds for the selection.
 563   ui::SelectionBound selection_anchor_;
 564   ui::SelectionBound selection_focus_;
 565
 566   // The current composition character bounds.
 567   std::vector<gfx::Rect> composition_character_bounds_;
 568
 569   // Indicates if there is onging composition text.
 570   bool has_composition_text_;
 571
 572   // Whether return characters should be passed on to the RenderWidgetHostImpl.
 573   bool accept_return_character_;
 574
 575   // Current tooltip text.
 576   base::string16 tooltip_;
 577
 578   // The size and scale of the last software compositing frame that was swapped.
 579   gfx::Size last_swapped_software_frame_size_;
 580   float last_swapped_software_frame_scale_factor_;
 581
 582   // If non-NULL we're in OnPaint() and this is the supplied canvas.
 583   gfx::Canvas* paint_canvas_;
 584
 585   // Used to record the last position of the mouse.
 586   // While the mouse is locked, they store the last known position just as mouse
 587   // lock was entered.
 588   // Relative to the upper-left corner of the view.
 589   gfx::Point unlocked_mouse_position_;
 590   // Relative to the upper-left corner of the screen.
 591   gfx::Point unlocked_global_mouse_position_;
 592   // Last cursor position relative to screen. Used to compute movementX/Y.
 593   gfx::Point global_mouse_position_;
 594   // In mouse locked mode, we synthetically move the mouse cursor to the center
 595   // of the window when it reaches the window borders to avoid it going outside.
 596   // This flag is used to differentiate between these synthetic mouse move
 597   // events vs. normal mouse move events.
 598   bool synthetic_move_sent_;
 599
 600   // Used to track the state of the window we're created from. Only used when
 601   // created fullscreen.
 602   scoped_ptr<aura::WindowTracker> host_tracker_;
 603
 604   // Used to track the last cursor visibility update that was sent to the
 605   // renderer via NotifyRendererOfCursorVisibilityState().
 606   enum CursorVisibilityState {
 607     UNKNOWN,
 608     VISIBLE,
 609     NOT_VISIBLE,
 610   };
 611   CursorVisibilityState cursor_visibility_state_in_renderer_;
 612
 613 #if defined(OS_WIN)
 614   // The list of rectangles from constrained windows over this view. Windowed
 615   // NPAPI plugins shouldn't draw over them.
 616   std::vector<gfx::Rect> constrained_rects_;
 617
 618   typedef std::map<HWND, WebPluginGeometry> PluginWindowMoves;
 619   // Contains information about each windowed plugin's clip and cutout rects (
 620   // from the renderer). This is needed because when the transient windows
 621   // over this view changes, we need this information in order to create a new
 622   // region for the HWND.
 623   PluginWindowMoves plugin_window_moves_;
 624
 625   // The LegacyRenderWidgetHostHWND class provides a dummy HWND which is used
 626   // for accessibility, as the container for windowless plugins like
 627   // Flash/Silverlight, etc and for legacy drivers for trackpoints/trackpads,
 628   // etc.
 629   // The LegacyRenderWidgetHostHWND instance is created during the first call
 630   // to RenderWidgetHostViewAura::InternalSetBounds. The instance is destroyed
 631   // when the LegacyRenderWidgetHostHWND hwnd is destroyed.
 632   content::LegacyRenderWidgetHostHWND* legacy_render_widget_host_HWND_;
 633
 634   // Set to true if the legacy_render_widget_host_HWND_ instance was destroyed
 635   // by Windows. This could happen if the browser window was destroyed by
 636   // DestroyWindow for e.g. This flag helps ensure that we don't try to create
 637   // the LegacyRenderWidgetHostHWND instance again as that would be a futile
 638   // exercise.
 639   bool legacy_window_destroyed_;
 640
 641   // Set to true when a context menu is being displayed. Reset to false when
 642   // a mouse leave is received in this context.
 643   bool showing_context_menu_;
 644 #endif
 645
 646   bool has_snapped_to_boundary_;
 647
 648   TouchEditingClient* touch_editing_client_;
 649
 650   scoped_ptr<OverscrollController> overscroll_controller_;
 651
 652   // The last scroll offset of the view.
 653   gfx::Vector2dF last_scroll_offset_;
 654
 655   gfx::Insets insets_;
 656
 657   std::vector<ui::LatencyInfo> software_latency_info_;
 658
 659   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 660
 661   // True when this view acts as a platform view hack for a
 662   // RenderWidgetHostViewGuest.
 663   bool is_guest_view_hack_;
 664
 665   gfx::Rect disambiguation_target_rect_;
 666
 667   // The last scroll offset when we start to render the link disambiguation
 668   // view, so we can ensure the window hasn't moved between copying from the
 669   // compositing surface and showing the disambiguation popup.
 670   gfx::Vector2dF disambiguation_scroll_offset_;
 671
 672   BeginFrameObserverProxy begin_frame_observer_proxy_;
 673
 674   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 675   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 676 };
 677
 678 }  // namespace content
 679
 680 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_