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/render_widget_host_view_base.h"
  24 #include "content/common/content_export.h"
  25 #include "content/common/cursors/webcursor.h"
  26 #include "third_party/skia/include/core/SkRegion.h"
  27 #include "ui/aura/client/cursor_client_observer.h"
  28 #include "ui/aura/client/focus_change_observer.h"
  29 #include "ui/aura/window_delegate.h"
  30 #include "ui/aura/window_tree_host_observer.h"
  31 #include "ui/base/ime/text_input_client.h"
  32 #include "ui/base/touch/selection_bound.h"
  33 #include "ui/base/touch/touch_editing_controller.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 namespace aura {
  41 class WindowTracker;
  42 namespace client {
  43 class ScopedTooltipDisabler;
  44 }
  45 }
  46
  47 namespace cc {
  48 class CopyOutputRequest;
  49 class CopyOutputResult;
  50 class DelegatedFrameData;
  51 }
  52
  53 namespace gfx {
  54 class Canvas;
  55 class Display;
  56 }
  57
  58 namespace gpu {
  59 struct Mailbox;
  60 }
  61
  62 namespace ui {
  63 class CompositorLock;
  64 class InputMethod;
  65 class LocatedEvent;
  66 class Texture;
  67 }
  68
  69 namespace content {
  70 #if defined(OS_WIN)
  71 class LegacyRenderWidgetHostHWND;
  72 #endif
  73
  74 class OverscrollController;
  75 class RenderFrameHostImpl;
  76 class RenderWidgetHostImpl;
  77 class RenderWidgetHostView;
  78
  79 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
  80 class CONTENT_EXPORT RenderWidgetHostViewAura
  81     : public RenderWidgetHostViewBase,
  82       public DelegatedFrameHostClient,
  83       public ui::TextInputClient,
  84       public gfx::DisplayObserver,
  85       public aura::WindowTreeHostObserver,
  86       public aura::WindowDelegate,
  87       public aura::client::ActivationDelegate,
  88       public aura::client::FocusChangeObserver,
  89       public aura::client::CursorClientObserver {
  90  public:
  91   // Displays and controls touch editing elements such as selection handles.
  92   class TouchEditingClient {
  93    public:
  94     TouchEditingClient() {}
  95
  96     // Tells the client to start showing touch editing handles.
  97     virtual void StartTouchEditing() = 0;
  98
  99     // Notifies the client that touch editing is no longer needed. |quick|
 100     // determines whether the handles should fade out quickly or slowly.
 101     virtual void EndTouchEditing(bool quick) = 0;
 102
 103     // Notifies the client that the selection bounds need to be updated.
 104     virtual void OnSelectionOrCursorChanged(
 105         const ui::SelectionBound& anchor,
 106         const ui::SelectionBound& focus) = 0;
 107
 108     // Notifies the client that the current text input type as changed.
 109     virtual void OnTextInputTypeChanged(ui::TextInputType type) = 0;
 110
 111     // Notifies the client that an input event is about to be sent to the
 112     // renderer. Returns true if the client wants to stop event propagation.
 113     virtual bool HandleInputEvent(const ui::Event* event) = 0;
 114
 115     // Notifies the client that a gesture event ack was received.
 116     virtual void GestureEventAck(int gesture_event_type) = 0;
 117
 118     // Notifies the client that the fling has ended, so it can activate touch
 119     // editing if needed.
 120     virtual void DidStopFlinging() = 0;
 121
 122     // This is called when the view is destroyed, so that the client can
 123     // perform any necessary clean-up.
 124     virtual void OnViewDestroyed() = 0;
 125
 126    protected:
 127     virtual ~TouchEditingClient() {}
 128   };
 129
 130   void set_touch_editing_client(TouchEditingClient* client) {
 131     touch_editing_client_ = client;
 132   }
 133
 134   // When |is_guest_view_hack| is true, this view isn't really the view for
 135   // the |widget|, a RenderWidgetHostViewGuest is.
 136   //
 137   // TODO(lazyboy): Remove |is_guest_view_hack| once BrowserPlugin has migrated
 138   // to use RWHVChildFrame (http://crbug.com/330264).
 139   RenderWidgetHostViewAura(RenderWidgetHost* host, bool is_guest_view_hack);
 140
 141   // RenderWidgetHostView implementation.
 142   bool OnMessageReceived(const IPC::Message& msg) override;
 143   void InitAsChild(gfx::NativeView parent_view) override;
 144   RenderWidgetHost* GetRenderWidgetHost() const override;
 145   void SetSize(const gfx::Size& size) override;
 146   void SetBounds(const gfx::Rect& rect) override;
 147   gfx::Vector2dF GetLastScrollOffset() const override;
 148   gfx::NativeView GetNativeView() const override;
 149   gfx::NativeViewId GetNativeViewId() const override;
 150   gfx::NativeViewAccessible GetNativeViewAccessible() override;
 151   ui::TextInputClient* GetTextInputClient() override;
 152   bool HasFocus() const override;
 153   bool IsSurfaceAvailableForCopy() const override;
 154   void Show() override;
 155   void Hide() override;
 156   bool IsShowing() override;
 157   gfx::Rect GetViewBounds() const override;
 158   void SetBackgroundColor(SkColor color) override;
 159   gfx::Size GetVisibleViewportSize() const override;
 160   void SetInsets(const gfx::Insets& insets) override;
 161
 162   // Overridden from RenderWidgetHostViewBase:
 163   void InitAsPopup(RenderWidgetHostView* parent_host_view,
 164                    const gfx::Rect& pos) override;
 165   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
 166   void MovePluginWindows(const std::vector<WebPluginGeometry>& moves) override;
 167   void Focus() override;
 168   void Blur() override;
 169   void UpdateCursor(const WebCursor& cursor) override;
 170   void SetIsLoading(bool is_loading) override;
 171   void TextInputTypeChanged(ui::TextInputType type,
 172                             ui::TextInputMode input_mode,
 173                             bool can_compose_inline,
 174                             int flags) override;
 175   void ImeCancelComposition() override;
 176   void ImeCompositionRangeChanged(
 177       const gfx::Range& range,
 178       const std::vector<gfx::Rect>& character_bounds) override;
 179   void RenderProcessGone(base::TerminationStatus status,
 180                          int error_code) override;
 181   void Destroy() override;
 182   void SetTooltipText(const base::string16& tooltip_text) override;
 183   void SelectionChanged(const base::string16& text,
 184                         size_t offset,
 185                         const gfx::Range& range) override;
 186   gfx::Size GetRequestedRendererSize() const override;
 187   void SelectionBoundsChanged(
 188       const ViewHostMsg_SelectionBounds_Params& params) override;
 189   void CopyFromCompositingSurface(const gfx::Rect& src_subrect,
 190                                   const gfx::Size& dst_size,
 191                                   ReadbackRequestCallback& callback,
 192                                   const SkColorType color_type) override;
 193   void CopyFromCompositingSurfaceToVideoFrame(
 194       const gfx::Rect& src_subrect,
 195       const scoped_refptr<media::VideoFrame>& target,
 196       const base::Callback<void(bool)>& callback) override;
 197   bool CanCopyToVideoFrame() const override;
 198   bool CanSubscribeFrame() const override;
 199   void BeginFrameSubscription(
 200       scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) override;
 201   void EndFrameSubscription() override;
 202   bool HasAcceleratedSurface(const gfx::Size& desired_size) override;
 203   void GetScreenInfo(blink::WebScreenInfo* results) override;
 204   gfx::Rect GetBoundsInRootWindow() override;
 205   void WheelEventAck(const blink::WebMouseWheelEvent& event,
 206                      InputEventAckState ack_result) override;
 207   void GestureEventAck(const blink::WebGestureEvent& event,
 208                        InputEventAckState ack_result) override;
 209   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
 210                               InputEventAckState ack_result) override;
 211   scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget() override;
 212   InputEventAckState FilterInputEvent(
 213       const blink::WebInputEvent& input_event) override;
 214   gfx::GLSurfaceHandle GetCompositingSurface() override;
 215   BrowserAccessibilityManager* CreateBrowserAccessibilityManager(
 216       BrowserAccessibilityDelegate* delegate) override;
 217   gfx::AcceleratedWidget AccessibilityGetAcceleratedWidget() override;
 218   gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible() override;
 219   void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
 220                                const SkBitmap& zoomed_bitmap) override;
 221   bool LockMouse() override;
 222   void UnlockMouse() override;
 223   void OnSwapCompositorFrame(uint32 output_surface_id,
 224                              scoped_ptr<cc::CompositorFrame> frame) override;
 225   void DidStopFlinging() override;
 226   void OnDidNavigateMainFrameToNewPage() override;
 227
 228 #if defined(OS_WIN)
 229   virtual void SetParentNativeViewAccessible(
 230       gfx::NativeViewAccessible accessible_parent) override;
 231   virtual gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 232 #endif
 233
 234   // Overridden from ui::TextInputClient:
 235   void SetCompositionText(const ui::CompositionText& composition) override;
 236   void ConfirmCompositionText() override;
 237   void ClearCompositionText() override;
 238   void InsertText(const base::string16& text) override;
 239   void InsertChar(base::char16 ch, int flags) override;
 240   gfx::NativeWindow GetAttachedWindow() const override;
 241   ui::TextInputType GetTextInputType() const override;
 242   ui::TextInputMode GetTextInputMode() const override;
 243   int GetTextInputFlags() const override;
 244   bool CanComposeInline() const override;
 245   gfx::Rect GetCaretBounds() const override;
 246   bool GetCompositionCharacterBounds(uint32 index,
 247                                      gfx::Rect* rect) const override;
 248   bool HasCompositionText() const override;
 249   bool GetTextRange(gfx::Range* range) const override;
 250   bool GetCompositionTextRange(gfx::Range* range) const override;
 251   bool GetSelectionRange(gfx::Range* range) const override;
 252   bool SetSelectionRange(const gfx::Range& range) override;
 253   bool DeleteRange(const gfx::Range& range) override;
 254   bool GetTextFromRange(const gfx::Range& range,
 255                         base::string16* text) const override;
 256   void OnInputMethodChanged() override;
 257   bool ChangeTextDirectionAndLayoutAlignment(
 258       base::i18n::TextDirection direction) override;
 259   void ExtendSelectionAndDelete(size_t before, size_t after) override;
 260   void EnsureCaretInRect(const gfx::Rect& rect) override;
 261   void OnCandidateWindowShown() override;
 262   void OnCandidateWindowUpdated() override;
 263   void OnCandidateWindowHidden() override;
 264   bool IsEditCommandEnabled(int command_id) override;
 265   void SetEditCommandForNextKeyEvent(int command_id) override;
 266
 267   // Overridden from gfx::DisplayObserver:
 268   void OnDisplayAdded(const gfx::Display& new_display) override;
 269   void OnDisplayRemoved(const gfx::Display& old_display) override;
 270   void OnDisplayMetricsChanged(const gfx::Display& display,
 271                                uint32_t metrics) override;
 272
 273   // Overridden from aura::WindowDelegate:
 274   gfx::Size GetMinimumSize() const override;
 275   gfx::Size GetMaximumSize() const override;
 276   void OnBoundsChanged(const gfx::Rect& old_bounds,
 277                        const gfx::Rect& new_bounds) override;
 278   ui::TextInputClient* GetFocusedTextInputClient() override;
 279   gfx::NativeCursor GetCursor(const gfx::Point& point) override;
 280   int GetNonClientComponent(const gfx::Point& point) const override;
 281   bool ShouldDescendIntoChildForEventHandling(
 282       aura::Window* child,
 283       const gfx::Point& location) override;
 284   bool CanFocus() override;
 285   void OnCaptureLost() override;
 286   void OnPaint(const ui::PaintContext& context) override;
 287   void OnDeviceScaleFactorChanged(float device_scale_factor) override;
 288   void OnWindowDestroying(aura::Window* window) override;
 289   void OnWindowDestroyed(aura::Window* window) override;
 290   void OnWindowTargetVisibilityChanged(bool visible) override;
 291   bool HasHitTestMask() const override;
 292   void GetHitTestMask(gfx::Path* mask) const override;
 293
 294   // Overridden from ui::EventHandler:
 295   void OnKeyEvent(ui::KeyEvent* event) override;
 296   void OnMouseEvent(ui::MouseEvent* event) override;
 297   void OnScrollEvent(ui::ScrollEvent* event) override;
 298   void OnTouchEvent(ui::TouchEvent* event) override;
 299   void OnGestureEvent(ui::GestureEvent* event) override;
 300
 301   // Overridden from aura::client::ActivationDelegate:
 302   bool ShouldActivate() const override;
 303
 304   // Overridden from aura::client::CursorClientObserver:
 305   void OnCursorVisibilityChanged(bool is_visible) override;
 306
 307   // Overridden from aura::client::FocusChangeObserver:
 308   void OnWindowFocused(aura::Window* gained_focus,
 309                        aura::Window* lost_focus) override;
 310
 311   // Overridden from aura::WindowTreeHostObserver:
 312   void OnHostMoved(const aura::WindowTreeHost* host,
 313                    const gfx::Point& new_origin) override;
 314
 315   void OnTextInputStateChanged(const ViewHostMsg_TextInputState_Params& params);
 316
 317 #if defined(OS_WIN)
 318   // Sets the cutout rects from constrained windows. These are rectangles that
 319   // windowed NPAPI plugins shouldn't paint in. Overwrites any previous cutout
 320   // rects.
 321   void UpdateConstrainedWindowRects(const std::vector<gfx::Rect>& rects);
 322
 323   // Updates the cursor clip region. Used for mouse locking.
 324   void UpdateMouseLockRegion();
 325
 326   // Notification that the LegacyRenderWidgetHostHWND was destroyed.
 327   void OnLegacyWindowDestroyed();
 328 #endif
 329
 330   void DisambiguationPopupRendered(const SkBitmap& result,
 331                                    ReadbackResponse response);
 332
 333   void HideDisambiguationPopup();
 334
 335   void ProcessDisambiguationGesture(ui::GestureEvent* event);
 336
 337   void ProcessDisambiguationMouse(ui::MouseEvent* event);
 338
 339   // Method to indicate if this instance is shutting down or closing.
 340   // TODO(shrikant): Discuss around to see if it makes sense to add this method
 341   // as part of RenderWidgetHostView.
 342   bool IsClosing() const { return in_shutdown_; }
 343
 344   // Sets whether the overscroll controller should be enabled for this page.
 345   void SetOverscrollControllerEnabled(bool enabled);
 346
 347   void SnapToPhysicalPixelBoundary();
 348
 349   OverscrollController* overscroll_controller() const {
 350     return overscroll_controller_.get();
 351   }
 352
 353   // Called when the context menu is about to be displayed.
 354   void OnShowContextMenu();
 355
 356  protected:
 357   ~RenderWidgetHostViewAura() override;
 358
 359   // Exposed for tests.
 360   aura::Window* window() { return window_; }
 361   SkColorType PreferredReadbackFormat() override;
 362   DelegatedFrameHost* GetDelegatedFrameHost() const {
 363     return delegated_frame_host_.get();
 364   }
 365   const ui::MotionEventAura& pointer_state() const { return pointer_state_; }
 366
 367  private:
 368   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 369                            PopupRetainsCaptureAfterMouseRelease);
 370   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SetCompositionText);
 371   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventState);
 372   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 373                            TouchEventPositionsArentRounded);
 374   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventSyncAsync);
 375   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, Resize);
 376   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SwapNotifiesWindow);
 377   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, RecreateLayers);
 378   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 379                            SkippedDelegatedFrames);
 380   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, OutputSurfaceIdChange);
 381   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 382                            DiscardDelegatedFrames);
 383   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 384                            DiscardDelegatedFramesWithLocking);
 385   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, SoftwareDPIChange);
 386   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 387                            UpdateCursorIfOverSelf);
 388   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraCopyRequestTest,
 389                            DedupeFrameSubscriberRequests);
 390   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraCopyRequestTest,
 391                            DestroyedAfterCopyRequest);
 392   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 393                            VisibleViewportTest);
 394   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 395                            OverscrollResetsOnBlur);
 396   FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
 397                            FinishCompositionByMouse);
 398   FRIEND_TEST_ALL_PREFIXES(WebContentsViewAuraTest,
 399                            WebContentsViewReparent);
 400
 401   class WindowObserver;
 402   friend class WindowObserver;
 403
 404   void UpdateCursorIfOverSelf();
 405
 406   // Tracks whether SnapToPhysicalPixelBoundary() has been called.
 407   bool has_snapped_to_boundary() { return has_snapped_to_boundary_; }
 408   void ResetHasSnappedToBoundary() { has_snapped_to_boundary_ = false; }
 409
 410   // Set the bounds of the window and handle size changes.  Assumes the caller
 411   // has already adjusted the origin of |rect| to conform to whatever coordinate
 412   // space is required by the aura::Window.
 413   void InternalSetBounds(const gfx::Rect& rect);
 414
 415 #if defined(OS_WIN)
 416   bool UsesNativeWindowFrame() const;
 417 #endif
 418
 419   ui::InputMethod* GetInputMethod() const;
 420
 421   // Sends shutdown request.
 422   void Shutdown();
 423
 424   // Returns whether the widget needs an input grab to work properly.
 425   bool NeedsInputGrab();
 426
 427   // Returns whether the widget needs to grab mouse capture to work properly.
 428   bool NeedsMouseCapture();
 429
 430   // Confirm existing composition text in the webpage and ask the input method
 431   // to cancel its ongoing composition session.
 432   void FinishImeCompositionSession();
 433
 434   // This method computes movementX/Y and keeps track of mouse location for
 435   // mouse lock on all mouse move events.
 436   void ModifyEventMovementAndCoords(blink::WebMouseEvent* event);
 437
 438   // Sends an IPC to the renderer process to communicate whether or not
 439   // the mouse cursor is visible anywhere on the screen.
 440   void NotifyRendererOfCursorVisibilityState(bool is_visible);
 441
 442   // If |clip| is non-empty and and doesn't contain |rect| or |clip| is empty
 443   // SchedulePaint() is invoked for |rect|.
 444   void SchedulePaintIfNotInClip(const gfx::Rect& rect, const gfx::Rect& clip);
 445
 446   // Helper method to determine if, in mouse locked mode, the cursor should be
 447   // moved to center.
 448   bool ShouldMoveToCenter();
 449
 450   // Called after |window_| is parented to a WindowEventDispatcher.
 451   void AddedToRootWindow();
 452
 453   // Called prior to removing |window_| from a WindowEventDispatcher.
 454   void RemovingFromRootWindow();
 455
 456   // DelegatedFrameHostClient implementation.
 457   ui::Layer* DelegatedFrameHostGetLayer() const override;
 458   bool DelegatedFrameHostIsVisible() const override;
 459   gfx::Size DelegatedFrameHostDesiredSizeInDIP() const override;
 460   bool DelegatedFrameCanCreateResizeLock() const override;
 461   scoped_ptr<ResizeLock> DelegatedFrameHostCreateResizeLock(
 462       bool defer_compositor_lock) override;
 463   void DelegatedFrameHostResizeLockWasReleased() override;
 464   void DelegatedFrameHostSendCompositorSwapAck(
 465       int output_surface_id,
 466       const cc::CompositorFrameAck& ack) override;
 467   void DelegatedFrameHostSendReclaimCompositorResources(
 468       int output_surface_id,
 469       const cc::CompositorFrameAck& ack) override;
 470   void DelegatedFrameHostOnLostCompositorResources() override;
 471   void DelegatedFrameHostUpdateVSyncParameters(
 472       const base::TimeTicks& timebase,
 473       const base::TimeDelta& interval) override;
 474
 475   // Detaches |this| from the input method object.
 476   void DetachFromInputMethod();
 477
 478   // Before calling RenderWidgetHost::ForwardKeyboardEvent(), this method
 479   // calls our keybindings handler against the event and send matched
 480   // edit commands to renderer instead.
 481   void ForwardKeyboardEvent(const NativeWebKeyboardEvent& event);
 482
 483   // Dismisses a Web Popup on a mouse or touch press outside the popup and its
 484   // parent.
 485   void ApplyEventFilterForPopupExit(ui::LocatedEvent* event);
 486
 487   // Converts |rect| from window coordinate to screen coordinate.
 488   gfx::Rect ConvertRectToScreen(const gfx::Rect& rect) const;
 489
 490   // Converts |rect| from screen coordinate to window coordinate.
 491   gfx::Rect ConvertRectFromScreen(const gfx::Rect& rect) const;
 492
 493   // Helper function to set keyboard focus to the main window.
 494   void SetKeyboardFocus();
 495
 496   RenderFrameHostImpl* GetFocusedFrame();
 497
 498   // Returns true if the |event| passed in can be forwarded to the renderer.
 499   bool CanRendererHandleEvent(const ui::MouseEvent* event,
 500                               bool mouse_locked,
 501                               bool selection_popup);
 502
 503   // The model object.
 504   RenderWidgetHostImpl* host_;
 505
 506   aura::Window* window_;
 507
 508   scoped_ptr<DelegatedFrameHost> delegated_frame_host_;
 509
 510   scoped_ptr<WindowObserver> window_observer_;
 511
 512   // Are we in the process of closing?  Tracked so fullscreen views can avoid
 513   // sending a second shutdown request to the host when they lose the focus
 514   // after requesting shutdown for another reason (e.g. Escape key).
 515   bool in_shutdown_;
 516
 517   // True if in the process of handling a window bounds changed notification.
 518   bool in_bounds_changed_;
 519
 520   // Is this a fullscreen view?
 521   bool is_fullscreen_;
 522
 523   // Our parent host view, if this is a popup.  NULL otherwise.
 524   RenderWidgetHostViewAura* popup_parent_host_view_;
 525
 526   // Our child popup host. NULL if we do not have a child popup.
 527   RenderWidgetHostViewAura* popup_child_host_view_;
 528
 529   class EventFilterForPopupExit;
 530   friend class EventFilterForPopupExit;
 531   scoped_ptr<ui::EventHandler> event_filter_for_popup_exit_;
 532
 533   // True when content is being loaded. Used to show an hourglass cursor.
 534   bool is_loading_;
 535
 536   // The cursor for the page. This is passed up from the renderer.
 537   WebCursor current_cursor_;
 538
 539   // Stores the current state of the active pointers targeting this
 540   // object.
 541   ui::MotionEventAura pointer_state_;
 542
 543   // The current text input type.
 544   ui::TextInputType text_input_type_;
 545   // The current text input mode corresponding to HTML5 inputmode attribute.
 546   ui::TextInputMode text_input_mode_;
 547   // The current text input flags.
 548   int text_input_flags_;
 549   bool can_compose_inline_;
 550
 551   // Bounds for the selection.
 552   ui::SelectionBound selection_anchor_;
 553   ui::SelectionBound selection_focus_;
 554
 555   // The current composition character bounds.
 556   std::vector<gfx::Rect> composition_character_bounds_;
 557
 558   // Indicates if there is onging composition text.
 559   bool has_composition_text_;
 560
 561   // Whether return characters should be passed on to the RenderWidgetHostImpl.
 562   bool accept_return_character_;
 563
 564   // Current tooltip text.
 565   base::string16 tooltip_;
 566
 567   // The size and scale of the last software compositing frame that was swapped.
 568   gfx::Size last_swapped_software_frame_size_;
 569   float last_swapped_software_frame_scale_factor_;
 570
 571   // If non-NULL we're in OnPaint() and this is the supplied canvas.
 572   gfx::Canvas* paint_canvas_;
 573
 574   // Used to record the last position of the mouse.
 575   // While the mouse is locked, they store the last known position just as mouse
 576   // lock was entered.
 577   // Relative to the upper-left corner of the view.
 578   gfx::Point unlocked_mouse_position_;
 579   // Relative to the upper-left corner of the screen.
 580   gfx::Point unlocked_global_mouse_position_;
 581   // Last cursor position relative to screen. Used to compute movementX/Y.
 582   gfx::Point global_mouse_position_;
 583   // In mouse locked mode, we synthetically move the mouse cursor to the center
 584   // of the window when it reaches the window borders to avoid it going outside.
 585   // This flag is used to differentiate between these synthetic mouse move
 586   // events vs. normal mouse move events.
 587   bool synthetic_move_sent_;
 588
 589   // Used to track the state of the window we're created from. Only used when
 590   // created fullscreen.
 591   scoped_ptr<aura::WindowTracker> host_tracker_;
 592
 593   // Used to track the last cursor visibility update that was sent to the
 594   // renderer via NotifyRendererOfCursorVisibilityState().
 595   enum CursorVisibilityState {
 596     UNKNOWN,
 597     VISIBLE,
 598     NOT_VISIBLE,
 599   };
 600   CursorVisibilityState cursor_visibility_state_in_renderer_;
 601
 602 #if defined(OS_WIN)
 603   // The list of rectangles from constrained windows over this view. Windowed
 604   // NPAPI plugins shouldn't draw over them.
 605   std::vector<gfx::Rect> constrained_rects_;
 606
 607   typedef std::map<HWND, WebPluginGeometry> PluginWindowMoves;
 608   // Contains information about each windowed plugin's clip and cutout rects (
 609   // from the renderer). This is needed because when the transient windows
 610   // over this view changes, we need this information in order to create a new
 611   // region for the HWND.
 612   PluginWindowMoves plugin_window_moves_;
 613
 614   // The LegacyRenderWidgetHostHWND class provides a dummy HWND which is used
 615   // for accessibility, as the container for windowless plugins like
 616   // Flash/Silverlight, etc and for legacy drivers for trackpoints/trackpads,
 617   // etc.
 618   // The LegacyRenderWidgetHostHWND instance is created during the first call
 619   // to RenderWidgetHostViewAura::InternalSetBounds. The instance is destroyed
 620   // when the LegacyRenderWidgetHostHWND hwnd is destroyed.
 621   content::LegacyRenderWidgetHostHWND* legacy_render_widget_host_HWND_;
 622
 623   // Set to true if the legacy_render_widget_host_HWND_ instance was destroyed
 624   // by Windows. This could happen if the browser window was destroyed by
 625   // DestroyWindow for e.g. This flag helps ensure that we don't try to create
 626   // the LegacyRenderWidgetHostHWND instance again as that would be a futile
 627   // exercise.
 628   bool legacy_window_destroyed_;
 629
 630   // Set to true when a context menu is being displayed. Reset to false when
 631   // a mouse leave is received in this context.
 632   bool showing_context_menu_;
 633 #endif
 634
 635   bool has_snapped_to_boundary_;
 636
 637   TouchEditingClient* touch_editing_client_;
 638
 639   scoped_ptr<OverscrollController> overscroll_controller_;
 640
 641   // The last scroll offset of the view.
 642   gfx::Vector2dF last_scroll_offset_;
 643
 644   gfx::Insets insets_;
 645
 646   std::vector<ui::LatencyInfo> software_latency_info_;
 647
 648   scoped_ptr<aura::client::ScopedTooltipDisabler> tooltip_disabler_;
 649
 650   // True when this view acts as a platform view hack for a
 651   // RenderWidgetHostViewGuest.
 652   bool is_guest_view_hack_;
 653
 654   gfx::Rect disambiguation_target_rect_;
 655
 656   // The last scroll offset when we start to render the link disambiguation
 657   // view, so we can ensure the window hasn't moved between copying from the
 658   // compositing surface and showing the disambiguation popup.
 659   gfx::Vector2dF disambiguation_scroll_offset_;
 660
 661   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 662   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 663 };
 664
 665 }  // namespace content
 666
 667 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_