content/renderer/render_view_impl.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_RENDERER_RENDER_VIEW_IMPL_H_
   6 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
   7
   8 #include <deque>
   9 #include <map>
  10 #include <set>
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/basictypes.h"
  15 #include "base/gtest_prod_util.h"
  16 #include "base/id_map.h"
  17 #include "base/memory/linked_ptr.h"
  18 #include "base/memory/weak_ptr.h"
  19 #include "base/observer_list.h"
  20 #include "base/process/process.h"
  21 #include "base/strings/string16.h"
  22 #include "base/timer/timer.h"
  23 #include "build/build_config.h"
  24 #include "cc/input/top_controls_state.h"
  25 #include "cc/resources/shared_bitmap.h"
  26 #include "content/common/content_export.h"
  27 #include "content/common/drag_event_source_info.h"
  28 #include "content/common/edit_command.h"
  29 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  30 #include "content/common/navigation_gesture.h"
  31 #include "content/common/view_message_enums.h"
  32 #include "content/public/common/page_zoom.h"
  33 #include "content/public/common/referrer.h"
  34 #include "content/public/common/renderer_preferences.h"
  35 #include "content/public/common/stop_find_action.h"
  36 #include "content/public/common/top_controls_state.h"
  37 #include "content/public/common/web_preferences.h"
  38 #include "content/public/renderer/render_view.h"
  39 #include "content/renderer/mouse_lock_dispatcher.h"
  40 #include "content/renderer/render_frame_impl.h"
  41 #include "content/renderer/render_widget.h"
  42 #include "content/renderer/stats_collection_observer.h"
  43 #include "ipc/ipc_platform_file.h"
  44 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  45 #include "third_party/WebKit/public/web/WebAXObject.h"
  46 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
  47 #include "third_party/WebKit/public/web/WebDataSource.h"
  48 #include "third_party/WebKit/public/web/WebElement.h"
  49 #include "third_party/WebKit/public/web/WebHistoryItem.h"
  50 #include "third_party/WebKit/public/web/WebIconURL.h"
  51 #include "third_party/WebKit/public/web/WebInputEvent.h"
  52 #include "third_party/WebKit/public/web/WebNavigationType.h"
  53 #include "third_party/WebKit/public/web/WebNode.h"
  54 #include "third_party/WebKit/public/web/WebPageSerializerClient.h"
  55 #include "third_party/WebKit/public/web/WebPageVisibilityState.h"
  56 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
  57 #include "third_party/WebKit/public/web/WebViewClient.h"
  58 #include "ui/base/window_open_disposition.h"
  59 #include "ui/surface/transport_dib.h"
  60
  61 #if defined(OS_ANDROID)
  62 #include "content/renderer/android/content_detector.h"
  63 #include "content/renderer/android/renderer_date_time_picker.h"
  64 #include "third_party/WebKit/public/web/WebContentDetectionResult.h"
  65 #endif
  66
  67 #if defined(COMPILER_MSVC)
  68 // RenderViewImpl is a diamond-shaped hierarchy, with WebWidgetClient at the
  69 // root. VS warns when we inherit the WebWidgetClient method implementations
  70 // from RenderWidget.  It's safe to ignore that warning.
  71 #pragma warning(disable: 4250)
  72 #endif
  73
  74 class PepperDeviceTest;
  75 class SkBitmap;
  76 struct PP_NetAddress_Private;
  77 struct FrameMsg_Navigate_Params;
  78 struct ViewMsg_PostMessage_Params;
  79 struct ViewMsg_StopFinding_Params;
  80
  81 namespace base {
  82 class CommandLine;
  83 }
  84
  85 namespace blink {
  86 class WebApplicationCacheHost;
  87 class WebApplicationCacheHostClient;
  88 class WebDOMMessageEvent;
  89 class WebDataSource;
  90 class WebDateTimeChooserCompletion;
  91 class WebDragData;
  92 class WebGestureEvent;
  93 class WebIconURL;
  94 class WebImage;
  95 class WebPeerConnection00Handler;
  96 class WebPeerConnection00HandlerClient;
  97 class WebMouseEvent;
  98 class WebPeerConnectionHandler;
  99 class WebPeerConnectionHandlerClient;
 100 class WebSocketStreamHandle;
 101 class WebSpeechRecognizer;
 102 class WebStorageNamespace;
 103 class WebTouchEvent;
 104 class WebURLRequest;
 105 struct WebActiveWheelFlingParameters;
 106 struct WebDateTimeChooserParams;
 107 struct WebFileChooserParams;
 108 struct WebFindOptions;
 109 struct WebMediaPlayerAction;
 110 struct WebPluginAction;
 111 struct WebPoint;
 112 struct WebWindowFeatures;
 113
 114 #if defined(OS_ANDROID)
 115 class WebHitTestResult;
 116 #endif
 117 }  // namespace blink
 118
 119 namespace ui {
 120 struct SelectedFileInfo;
 121 }
 122
 123 namespace content {
 124
 125 class BrowserPluginManager;
 126 class DevToolsAgent;
 127 class DocumentState;
 128 class FaviconHelper;
 129 class HistoryController;
 130 class HistoryEntry;
 131 class ImageResourceFetcher;
 132 class MouseLockDispatcher;
 133 class NavigationState;
 134 class PepperPluginInstanceImpl;
 135 class RenderViewImplTest;
 136 class RenderViewObserver;
 137 class RenderViewTest;
 138 class RendererDateTimePicker;
 139 class RendererWebColorChooserImpl;
 140 class SpeechRecognitionDispatcher;
 141 class WebPluginDelegateProxy;
 142 struct DropData;
 143 struct FaviconURL;
 144 struct FileChooserParams;
 145 struct RenderViewImplParams;
 146
 147 #if defined(OS_ANDROID)
 148 class WebMediaPlayerProxyAndroid;
 149 #endif
 150
 151 //
 152 // RenderView is an object that manages a WebView object, and provides a
 153 // communication interface with an embedding application process.
 154 //
 155 class CONTENT_EXPORT RenderViewImpl
 156     : public RenderWidget,
 157       NON_EXPORTED_BASE(public blink::WebViewClient),
 158       NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
 159       public RenderView,
 160       public base::SupportsWeakPtr<RenderViewImpl> {
 161  public:
 162   // Creates a new RenderView. |opener_id| is the routing ID of the RenderView
 163   // responsible for creating this RenderView. Note that if the original opener
 164   // has been closed, |window_was_created_with_opener| will be true and
 165   // |opener_id| will be MSG_ROUTING_NONE. When |swapped_out| is true, the
 166   // |proxy_routing_id| is specified, so a RenderFrameProxy can be created for
 167   // this RenderView's main RenderFrame.
 168   static RenderViewImpl* Create(int32 opener_id,
 169                                 bool window_was_created_with_opener,
 170                                 const RendererPreferences& renderer_prefs,
 171                                 const WebPreferences& webkit_prefs,
 172                                 int32 routing_id,
 173                                 int32 main_frame_routing_id,
 174                                 int32 surface_id,
 175                                 int64 session_storage_namespace_id,
 176                                 const base::string16& frame_name,
 177                                 bool is_renderer_created,
 178                                 bool swapped_out,
 179                                 int32 proxy_routing_id,
 180                                 bool hidden,
 181                                 bool never_visible,
 182                                 int32 next_page_id,
 183                                 const blink::WebScreenInfo& screen_info);
 184
 185   // Used by content_layouttest_support to hook into the creation of
 186   // RenderViewImpls.
 187   static void InstallCreateHook(
 188       RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*));
 189
 190   // Returns the RenderViewImpl containing the given WebView.
 191   static RenderViewImpl* FromWebView(blink::WebView* webview);
 192
 193   // Returns the RenderViewImpl for the given routing ID.
 194   static RenderViewImpl* FromRoutingID(int routing_id);
 195
 196   static size_t GetRenderViewCount();
 197
 198   // May return NULL when the view is closing.
 199   blink::WebView* webview() const;
 200
 201   int history_list_offset() const { return history_list_offset_; }
 202
 203   const WebPreferences& webkit_preferences() const {
 204     return webkit_preferences_;
 205   }
 206
 207   const RendererPreferences& renderer_preferences() const {
 208     return renderer_preferences_;
 209   }
 210
 211   void set_send_content_state_immediately(bool value) {
 212     send_content_state_immediately_ = value;
 213   }
 214
 215   RenderFrameImpl* main_render_frame() { return main_render_frame_.get(); }
 216
 217   MouseLockDispatcher* mouse_lock_dispatcher() {
 218     return mouse_lock_dispatcher_;
 219   }
 220
 221   HistoryController* history_controller() {
 222     return history_controller_.get();
 223   }
 224
 225   // Lazily initialize this view's BrowserPluginManager and return it.
 226   BrowserPluginManager* GetBrowserPluginManager();
 227
 228   // Functions to add and remove observers for this object.
 229   void AddObserver(RenderViewObserver* observer);
 230   void RemoveObserver(RenderViewObserver* observer);
 231
 232   // Returns the StatsCollectionObserver associated with this view, or NULL
 233   // if one wasn't created;
 234   StatsCollectionObserver* GetStatsCollectionObserver() {
 235     return stats_collection_observer_.get();
 236   }
 237
 238   // Adds the given file chooser request to the file_chooser_completion_ queue
 239   // (see that var for more) and requests the chooser be displayed if there are
 240   // no other waiting items in the queue.
 241   //
 242   // Returns true if the chooser was successfully scheduled. False means we
 243   // didn't schedule anything.
 244   bool ScheduleFileChooser(const FileChooserParams& params,
 245                            blink::WebFileChooserCompletion* completion);
 246
 247 #if defined(OS_ANDROID)
 248   void DismissDateTimeDialog();
 249 #endif
 250
 251   bool is_loading() const { return frames_in_progress_ != 0; }
 252
 253   void FrameDidStartLoading(blink::WebFrame* frame);
 254   void FrameDidStopLoading(blink::WebFrame* frame);
 255
 256   // Plugin-related functions --------------------------------------------------
 257
 258 #if defined(ENABLE_PLUGINS)
 259   // Get/set the plugin which will be used as to handle document find requests.
 260   void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
 261     plugin_find_handler_ = plugin;
 262   }
 263   PepperPluginInstanceImpl* plugin_find_handler() {
 264     return plugin_find_handler_;
 265   }
 266
 267   PepperPluginInstanceImpl* focused_pepper_plugin() {
 268     return focused_pepper_plugin_;
 269   }
 270   PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
 271     return pepper_last_mouse_event_target_;
 272   }
 273   void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
 274     pepper_last_mouse_event_target_ = plugin;
 275   }
 276
 277 #if defined(OS_MACOSX) || defined(OS_WIN)
 278   // Informs the render view that the given plugin has gained or lost focus.
 279   void PluginFocusChanged(bool focused, int plugin_id);
 280 #endif
 281
 282 #if defined(OS_MACOSX)
 283   // Starts plugin IME.
 284   void StartPluginIme();
 285 #endif
 286
 287   // Indicates that the given instance has been created.
 288   void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
 289
 290   // Indicates that the given instance is being destroyed. This is called from
 291   // the destructor, so it's important that the instance is not dereferenced
 292   // from this call.
 293   void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
 294
 295   // Notification that the given plugin is focused or unfocused.
 296   void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
 297
 298   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 299   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 300 #endif  // ENABLE_PLUGINS
 301
 302   void TransferActiveWheelFlingAnimation(
 303       const blink::WebActiveWheelFlingParameters& params);
 304
 305   // Returns true if the focused element is editable text from the perspective
 306   // of IME support (also used for on-screen keyboard). Works correctly inside
 307   // supported PPAPI plug-ins.
 308   bool HasIMETextFocus();
 309
 310   // Callback for use with GetWindowSnapshot.
 311   typedef base::Callback<void(
 312       const gfx::Size&, const std::vector<unsigned char>&)>
 313       WindowSnapshotCallback;
 314
 315   void GetWindowSnapshot(const WindowSnapshotCallback& callback);
 316
 317   // Dispatches the current navigation state to the browser. Called on a
 318   // periodic timer so we don't send too many messages.
 319   void SyncNavigationState();
 320
 321   // Returns the length of the session history of this RenderView. Note that
 322   // this only coincides with the actual length of the session history if this
 323   // RenderView is the currently active RenderView of a WebContents.
 324   unsigned GetLocalSessionHistoryLengthForTesting() const;
 325
 326   // Invokes OnSetFocus and marks the widget as active depending on the value
 327   // of |enable|. This is used for layout tests that need to control the focus
 328   // synchronously from the renderer.
 329   void SetFocusAndActivateForTesting(bool enable);
 330
 331   // Change the device scale factor and force the compositor to resize.
 332   void SetDeviceScaleFactorForTesting(float factor);
 333
 334   // Change the device ICC color profile while running a layout test.
 335   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
 336
 337   // Used to force the size of a window when running layout tests.
 338   void ForceResizeForTesting(const gfx::Size& new_size);
 339
 340   void UseSynchronousResizeModeForTesting(bool enable);
 341
 342   // Control autoresize mode.
 343   void EnableAutoResizeForTesting(const gfx::Size& min_size,
 344                                   const gfx::Size& max_size);
 345   void DisableAutoResizeForTesting(const gfx::Size& new_size);
 346
 347   // IPC::Listener implementation ----------------------------------------------
 348
 349   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 350
 351   // blink::WebWidgetClient implementation ------------------------------------
 352
 353   // Most methods are handled by RenderWidget.
 354   virtual void didFocus();
 355   virtual void didBlur();
 356   virtual void show(blink::WebNavigationPolicy policy);
 357   virtual void runModal();
 358   virtual bool enterFullScreen();
 359   virtual void exitFullScreen();
 360   virtual bool requestPointerLock();
 361   virtual void requestPointerUnlock();
 362   virtual bool isPointerLocked();
 363   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
 364                                      bool event_cancelled) OVERRIDE;
 365   virtual void initializeLayerTreeView() OVERRIDE;
 366
 367   // blink::WebViewClient implementation --------------------------------------
 368
 369   virtual blink::WebView* createView(blink::WebLocalFrame* creator,
 370                                      const blink::WebURLRequest& request,
 371                                      const blink::WebWindowFeatures& features,
 372                                      const blink::WebString& frame_name,
 373                                      blink::WebNavigationPolicy policy,
 374                                      bool suppress_opener);
 375   virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
 376   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 377   virtual void printPage(blink::WebLocalFrame* frame);
 378   virtual bool enumerateChosenDirectory(
 379       const blink::WebString& path,
 380       blink::WebFileChooserCompletion* chooser_completion);
 381   virtual void didCancelCompositionOnSelectionChange();
 382   virtual bool handleCurrentKeyboardEvent();
 383   virtual bool runFileChooser(
 384       const blink::WebFileChooserParams& params,
 385       blink::WebFileChooserCompletion* chooser_completion);
 386   virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
 387                                      const blink::WebString& main_text,
 388                                      const blink::WebString& sub_text,
 389                                      blink::WebTextDirection hint) OVERRIDE;
 390   virtual void hideValidationMessage() OVERRIDE;
 391   virtual void moveValidationMessage(
 392       const blink::WebRect& anchor_in_root_view) OVERRIDE;
 393   virtual void setStatusText(const blink::WebString& text);
 394   virtual void setMouseOverURL(const blink::WebURL& url);
 395   virtual void setKeyboardFocusURL(const blink::WebURL& url);
 396   virtual void startDragging(blink::WebLocalFrame* frame,
 397                              const blink::WebDragData& data,
 398                              blink::WebDragOperationsMask mask,
 399                              const blink::WebImage& image,
 400                              const blink::WebPoint& imageOffset);
 401   virtual bool acceptsLoadDrops();
 402   virtual void focusNext();
 403   virtual void focusPrevious();
 404   virtual void focusedNodeChanged(const blink::WebNode& node);
 405   virtual void didUpdateLayout();
 406 #if defined(OS_ANDROID)
 407   virtual bool didTapMultipleTargets(
 408       const blink::WebGestureEvent& event,
 409       const blink::WebVector<blink::WebRect>& target_rects);
 410 #endif
 411   virtual blink::WebString acceptLanguages();
 412   virtual void navigateBackForwardSoon(int offset);
 413   virtual int historyBackListCount();
 414   virtual int historyForwardListCount();
 415   virtual void postAccessibilityEvent(
 416       const blink::WebAXObject& obj, blink::WebAXEvent event);
 417   virtual blink::WebSpeechRecognizer* speechRecognizer();
 418   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 419   virtual void zoomLevelChanged();
 420   virtual double zoomLevelToZoomFactor(double zoom_level) const;
 421   virtual double zoomFactorToZoomLevel(double factor) const;
 422
 423   // TODO(sanjoy.pal): Remove once blink patch lands. http://crbug.com/406236.
 424   virtual void registerProtocolHandler(const blink::WebString& scheme,
 425                                        const blink::WebURL& base_url,
 426                                        const blink::WebURL& url,
 427                                        const blink::WebString& title);
 428   virtual void unregisterProtocolHandler(const blink::WebString& scheme,
 429                                          const blink::WebURL& base_url,
 430                                          const blink::WebURL& url);
 431   virtual void registerProtocolHandler(const blink::WebString& scheme,
 432                                        const blink::WebURL& url,
 433                                        const blink::WebString& title);
 434   virtual void unregisterProtocolHandler(const blink::WebString& scheme,
 435                                          const blink::WebURL& url);
 436   virtual blink::WebPageVisibilityState visibilityState() const;
 437   virtual blink::WebPushClient* webPushClient();
 438   virtual void draggableRegionsChanged();
 439
 440 #if defined(OS_ANDROID)
 441   virtual void scheduleContentIntent(const blink::WebURL& intent);
 442   virtual void cancelScheduledContentIntents();
 443   virtual blink::WebContentDetectionResult detectContentAround(
 444       const blink::WebHitTestResult& touch_hit);
 445
 446   // Only used on Android since all other platforms implement
 447   // date and time input fields using MULTIPLE_FIELDS_UI
 448   virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
 449                                    blink::WebDateTimeChooserCompletion*);
 450   virtual void didScrollWithKeyboard(const blink::WebSize& delta);
 451 #endif
 452
 453   // blink::WebPageSerializerClient implementation ----------------------------
 454
 455   virtual void didSerializeDataForFrame(
 456       const blink::WebURL& frame_url,
 457       const blink::WebCString& data,
 458       PageSerializationStatus status) OVERRIDE;
 459
 460   // RenderView implementation -------------------------------------------------
 461
 462   virtual bool Send(IPC::Message* message) OVERRIDE;
 463   virtual RenderFrame* GetMainRenderFrame() OVERRIDE;
 464   virtual int GetRoutingID() const OVERRIDE;
 465   virtual gfx::Size GetSize() const OVERRIDE;
 466   virtual WebPreferences& GetWebkitPreferences() OVERRIDE;
 467   virtual void SetWebkitPreferences(const WebPreferences& preferences) OVERRIDE;
 468   virtual blink::WebView* GetWebView() OVERRIDE;
 469   virtual blink::WebElement GetFocusedElement() const OVERRIDE;
 470   virtual bool IsEditableNode(const blink::WebNode& node) const OVERRIDE;
 471   virtual bool NodeContainsPoint(const blink::WebNode& node,
 472                                  const gfx::Point& point) const OVERRIDE;
 473   virtual bool ShouldDisplayScrollbars(int width, int height) const OVERRIDE;
 474   virtual int GetEnabledBindings() const OVERRIDE;
 475   virtual bool GetContentStateImmediately() const OVERRIDE;
 476   virtual blink::WebPageVisibilityState GetVisibilityState() const OVERRIDE;
 477   virtual void DidStartLoading() OVERRIDE;
 478   virtual void DidStopLoading() OVERRIDE;
 479   virtual void Repaint(const gfx::Size& size) OVERRIDE;
 480   virtual void SetEditCommandForNextKeyEvent(const std::string& name,
 481                                              const std::string& value) OVERRIDE;
 482   virtual void ClearEditCommands() OVERRIDE;
 483   virtual SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const OVERRIDE;
 484   virtual const std::string& GetAcceptLanguages() const OVERRIDE;
 485 #if defined(OS_ANDROID)
 486   virtual void UpdateTopControlsState(TopControlsState constraints,
 487                                       TopControlsState current,
 488                                       bool animate) OVERRIDE;
 489 #endif
 490   bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }
 491
 492   // Please do not add your stuff randomly to the end here. If there is an
 493   // appropriate section, add it there. If not, there are some random functions
 494   // nearer to the top you can add it to.
 495
 496   // Cannot use std::set unfortunately since linked_ptr<> does not support
 497   // operator<.
 498   typedef std::vector<linked_ptr<ImageResourceFetcher> >
 499       ImageResourceFetcherList;
 500
 501  protected:
 502   // RenderWidget overrides:
 503   virtual void OnClose() OVERRIDE;
 504   virtual void Close() OVERRIDE;
 505   virtual void OnResize(const ViewMsg_Resize_Params& params) OVERRIDE;
 506   virtual void DidInitiatePaint() OVERRIDE;
 507   virtual void DidFlushPaint() OVERRIDE;
 508   virtual gfx::Vector2d GetScrollOffset() OVERRIDE;
 509   virtual void DidHandleKeyEvent() OVERRIDE;
 510   virtual bool WillHandleMouseEvent(
 511       const blink::WebMouseEvent& event) OVERRIDE;
 512   virtual bool WillHandleGestureEvent(
 513       const blink::WebGestureEvent& event) OVERRIDE;
 514   virtual void DidHandleMouseEvent(const blink::WebMouseEvent& event) OVERRIDE;
 515   virtual void DidHandleTouchEvent(const blink::WebTouchEvent& event) OVERRIDE;
 516   virtual bool HasTouchEventHandlersAt(const gfx::Point& point) const OVERRIDE;
 517   virtual void OnSetFocus(bool enable) OVERRIDE;
 518   virtual void OnWasHidden() OVERRIDE;
 519   virtual void OnWasShown(bool needs_repainting,
 520                           const ui::LatencyInfo& latency_info) OVERRIDE;
 521   virtual GURL GetURLForGraphicsContext3D() OVERRIDE;
 522   virtual void OnImeSetComposition(
 523       const base::string16& text,
 524       const std::vector<blink::WebCompositionUnderline>& underlines,
 525       int selection_start,
 526       int selection_end) OVERRIDE;
 527   virtual void OnImeConfirmComposition(const base::string16& text,
 528                                        const gfx::Range& replacement_range,
 529                                        bool keep_selection) OVERRIDE;
 530   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
 531   virtual bool SetDeviceColorProfile(
 532       const std::vector<char>& color_profile) OVERRIDE;
 533   virtual void OnOrientationChange() OVERRIDE;
 534   virtual ui::TextInputType GetTextInputType() OVERRIDE;
 535   virtual void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) OVERRIDE;
 536 #if defined(OS_MACOSX) || defined(USE_AURA)
 537   virtual void GetCompositionCharacterBounds(
 538       std::vector<gfx::Rect>* character_bounds) OVERRIDE;
 539   virtual void GetCompositionRange(gfx::Range* range) OVERRIDE;
 540 #endif
 541   virtual bool CanComposeInline() OVERRIDE;
 542   virtual void DidCommitCompositorFrame() OVERRIDE;
 543   virtual void InstrumentWillBeginFrame(int frame_id) OVERRIDE;
 544   virtual void InstrumentDidBeginFrame() OVERRIDE;
 545   virtual void InstrumentDidCancelFrame() OVERRIDE;
 546   virtual void InstrumentWillComposite() OVERRIDE;
 547
 548  protected:
 549   explicit RenderViewImpl(RenderViewImplParams* params);
 550
 551   void Initialize(RenderViewImplParams* params);
 552   virtual void SetScreenMetricsEmulationParameters(
 553       float device_scale_factor,
 554       const gfx::Point& root_layer_offset,
 555       float root_layer_scale) OVERRIDE;
 556
 557   // Do not delete directly.  This class is reference counted.
 558   virtual ~RenderViewImpl();
 559
 560  private:
 561   // For unit tests.
 562   friend class PepperDeviceTest;
 563   friend class RenderViewImplTest;
 564   friend class RenderViewTest;
 565   friend class RendererAccessibilityTest;
 566
 567   // TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
 568   // utility functions needed in both classes, while we move frame specific
 569   // code away from this class.
 570   friend class RenderFrameImpl;
 571
 572   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
 573   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 574                            DidFailProvisionalLoadWithErrorForError);
 575   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 576                            DidFailProvisionalLoadWithErrorForCancellation);
 577   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 578                            DontIgnoreBackAfterNavEntryLimit);
 579   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
 580   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
 581   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
 582   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
 583   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
 584   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeTypeChanged);
 585   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
 586   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
 587   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
 588   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 589                            SetEditableSelectionAndComposition);
 590   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
 591   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
 592   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 593                            GetCompositionCharacterBoundsTest);
 594   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
 595   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 596                            DecideNavigationPolicyHandlesAllTopLevel);
 597 #if defined(OS_MACOSX)
 598   FRIEND_TEST_ALL_PREFIXES(RenderViewTest, MacTestCmdUp);
 599 #endif
 600   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndPrune);
 601   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
 602   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
 603   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, BasicRenderFrame);
 604   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, TextInputTypeWithPepper);
 605   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 606                            MessageOrderInDidChangeSelection);
 607   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendCandidateWindowEvents);
 608   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
 609   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
 610
 611   typedef std::map<GURL, double> HostZoomLevels;
 612
 613   enum ErrorPageType {
 614     DNS_ERROR,
 615     HTTP_404,
 616     CONNECTION_ERROR,
 617   };
 618
 619   // Old WebFrameClient implementations ----------------------------------------
 620
 621   // RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
 622   // WebFrameClient. However, many implementations of WebFrameClient methods
 623   // still live here and are called from RenderFrameImpl. These implementations
 624   // are to be moved to RenderFrameImpl <http://crbug.com/361761>.
 625
 626   void didCreateDataSource(blink::WebLocalFrame* frame,
 627                            blink::WebDataSource* datasource);
 628   void didClearWindowObject(blink::WebLocalFrame* frame);
 629   void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
 630   void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
 631   void didChangeScrollOffset(blink::WebLocalFrame* frame);
 632
 633   static bool IsReload(const FrameMsg_Navigate_Params& params);
 634
 635   static Referrer GetReferrerFromRequest(
 636       blink::WebFrame* frame,
 637       const blink::WebURLRequest& request);
 638
 639   static WindowOpenDisposition NavigationPolicyToDisposition(
 640       blink::WebNavigationPolicy policy);
 641
 642   void UpdateSessionHistory(blink::WebFrame* frame);
 643   void SendUpdateState(HistoryEntry* entry);
 644
 645   // Sends a message and runs a nested message loop.
 646   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 647
 648   // IPC message handlers ------------------------------------------------------
 649   //
 650   // The documentation for these functions should be in
 651   // content/common/*_messages.h for the message that the function is handling.
 652   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 653   void OnMoveCaret(const gfx::Point& point);
 654   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 655   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
 656   void OnAllowBindings(int enabled_bindings_flags);
 657   void OnAllowScriptToClose(bool script_can_close);
 658   void OnCancelDownload(int32 download_id);
 659   void OnClearFocusedElement();
 660   void OnClosePage();
 661   void OnShowContextMenu(ui::MenuSourceType source_type,
 662                          const gfx::Point& location);
 663   void OnCopyImageAt(int x, int y);
 664   void OnSaveImageAt(int x, int y);
 665   void OnDeterminePageLanguage();
 666   void OnDisableScrollbarsForSmallWindows(
 667       const gfx::Size& disable_scrollbars_size_limit);
 668   void OnDragSourceEnded(const gfx::Point& client_point,
 669                          const gfx::Point& screen_point,
 670                          blink::WebDragOperation drag_operation);
 671   void OnDragSourceSystemDragEnded();
 672   void OnDragTargetDrop(const gfx::Point& client_pt,
 673                         const gfx::Point& screen_pt,
 674                         int key_modifiers);
 675   void OnDragTargetDragEnter(const DropData& drop_data,
 676                              const gfx::Point& client_pt,
 677                              const gfx::Point& screen_pt,
 678                              blink::WebDragOperationsMask operations_allowed,
 679                              int key_modifiers);
 680   void OnDragTargetDragLeave();
 681   void OnDragTargetDragOver(const gfx::Point& client_pt,
 682                             const gfx::Point& screen_pt,
 683                             blink::WebDragOperationsMask operations_allowed,
 684                             int key_modifiers);
 685   void OnEnablePreferredSizeChangedMode();
 686   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 687   void OnDisableAutoResize(const gfx::Size& new_size);
 688   void OnEnumerateDirectoryResponse(int id,
 689                                     const std::vector<base::FilePath>& paths);
 690   void OnFileChooserResponse(
 691       const std::vector<ui::SelectedFileInfo>& files);
 692   void OnFind(int request_id,
 693               const base::string16&,
 694               const blink::WebFindOptions&);
 695   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 696   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 697       const std::vector<GURL>& links,
 698       const std::vector<base::FilePath>& local_paths,
 699       const base::FilePath& local_directory_name);
 700   void OnMediaPlayerActionAt(const gfx::Point& location,
 701                              const blink::WebMediaPlayerAction& action);
 702   void OnPluginActionAt(const gfx::Point& location,
 703                         const blink::WebPluginAction& action);
 704   void OnMoveOrResizeStarted();
 705   void OnPostMessageEvent(const ViewMsg_PostMessage_Params& params);
 706   void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
 707   void OnResetPageEncodingToDefault();
 708   void OnSetActive(bool active);
 709   void OnSetBackgroundOpaque(bool opaque);
 710   void OnExitFullscreen();
 711   void OnSetHistoryLengthAndPrune(int history_length, int32 minimum_page_id);
 712   void OnSetInitialFocus(bool reverse);
 713   void OnSetPageEncoding(const std::string& encoding_name);
 714   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
 715   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 716   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
 717   void OnSetZoomLevelForView(bool uses_temporary_zoom_level, double level);
 718   void OnStopFinding(StopFindAction action);
 719   void OnSuppressDialogsUntilSwapOut();
 720   void OnThemeChanged();
 721   void OnUpdateTargetURLAck();
 722   void OnUpdateWebPreferences(const WebPreferences& prefs);
 723   void OnZoom(PageZoom zoom);
 724   void OnEnableViewSourceMode();
 725   void OnWindowSnapshotCompleted(const int snapshot_id,
 726       const gfx::Size& size, const std::vector<unsigned char>& png);
 727   void OnForceRedraw(int request_id);
 728   void OnSelectWordAroundCaret();
 729 #if defined(OS_ANDROID)
 730   void OnActivateNearestFindResult(int request_id, float x, float y);
 731   void OnFindMatchRects(int current_version);
 732   void OnUndoScrollFocusedEditableNodeIntoRect();
 733   void OnUpdateTopControlsState(bool enable_hiding,
 734                                 bool enable_showing,
 735                                 bool animate);
 736   void OnExtractSmartClipData(const gfx::Rect& rect);
 737 #elif defined(OS_MACOSX)
 738   void OnGetRenderedText();
 739   void OnPluginImeCompositionCompleted(const base::string16& text,
 740                                        int plugin_id);
 741   void OnSetInLiveResize(bool in_live_resize);
 742   void OnSetWindowVisibility(bool visible);
 743   void OnWindowFrameChanged(const gfx::Rect& window_frame,
 744                             const gfx::Rect& view_frame);
 745 #endif
 746
 747   // Adding a new message handler? Please add it in alphabetical order above
 748   // and put it in the same position in the .cc file.
 749
 750   // Misc private functions ----------------------------------------------------
 751   // Check whether the preferred size has changed.
 752   void CheckPreferredSize();
 753
 754   // This callback is triggered when DownloadFavicon completes, either
 755   // succesfully or with a failure. See DownloadFavicon for more
 756   // details.
 757   void DidDownloadFavicon(ImageResourceFetcher* fetcher,
 758                           const SkBitmap& image);
 759
 760   // Requests to download a favicon image. When done, the RenderView is notified
 761   // by way of DidDownloadFavicon. Returns true if the request was successfully
 762   // started, false otherwise. id is used to uniquely identify the request and
 763   // passed back to the DidDownloadFavicon method. If the image has multiple
 764   // frames, the frame whose size is image_size is returned. If the image
 765   // doesn't have a frame at the specified size, the first is returned.
 766   bool DownloadFavicon(int id, const GURL& image_url, int image_size);
 767
 768   // Called to get the WebPlugin to handle find requests in the document.
 769   // Returns NULL if there is no such WebPlugin.
 770   blink::WebPlugin* GetWebPluginForFind();
 771
 772   // Returns true if the |params| navigation is to an entry that has been
 773   // cropped due to a recent navigation the browser did not know about.
 774   bool IsBackForwardToStaleEntry(const FrameMsg_Navigate_Params& params,
 775                                  bool is_reload);
 776
 777   // Make the given |frame| show an empty, unscriptable page.
 778   // TODO(creis): Move this to RenderFrame.
 779   void NavigateToSwappedOutURL(blink::WebFrame* frame);
 780
 781   // If we initiated a navigation, this function will populate |document_state|
 782   // with the navigation information saved in OnNavigate().
 783   void PopulateDocumentStateFromPending(DocumentState* document_state);
 784
 785   // Returns a new NavigationState populated with the navigation information
 786   // saved in OnNavigate().
 787   NavigationState* CreateNavigationStateFromPending();
 788
 789   // Processes the command-line flags --enable-viewport,
 790   // --enable-fixed-layout[=w,h] and --enable-pinch.
 791   void ProcessViewLayoutFlags(const base::CommandLine& command_line);
 792
 793 #if defined(OS_ANDROID)
 794   // Launch an Android content intent with the given URL.
 795   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
 796 #endif
 797
 798   // Sends a reply to the current find operation handling if it was a
 799   // synchronous find request.
 800   void SendFindReply(int request_id,
 801                      int match_count,
 802                      int ordinal,
 803                      const blink::WebRect& selection_rect,
 804                      bool final_status_update);
 805
 806   // Starts nav_state_sync_timer_ if it isn't already running.
 807   void StartNavStateSyncTimerIfNecessary();
 808
 809 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 810   void UpdateFontRenderingFromRendererPrefs();
 811 #else
 812   void UpdateFontRenderingFromRendererPrefs() {}
 813 #endif
 814
 815   // Update the target url and tell the browser that the target URL has changed.
 816   // If |url| is empty, show |fallback_url|.
 817   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
 818
 819   // Tells the browser what the new list of favicons for the webpage is.
 820   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
 821
 822   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
 823   // the browser.
 824   void DidStopLoadingIcons();
 825
 826   // Coordinate conversion -----------------------------------------------------
 827
 828   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
 829
 830   // RenderFrameImpl accessible state ------------------------------------------
 831   // The following section is the set of methods that RenderFrameImpl needs
 832   // to access RenderViewImpl state. The set of state variables are page-level
 833   // specific, so they don't belong in RenderFrameImpl and should remain in
 834   // this object.
 835   ObserverList<RenderViewObserver>& observers() {
 836     return observers_;
 837   }
 838
 839   // TODO(nasko): Remove this method when we move to frame proxy objects, since
 840   // the concept of swapped out will be eliminated.
 841   void set_is_swapped_out(bool swapped_out) {
 842     is_swapped_out_ = swapped_out;
 843   }
 844
 845   NavigationGesture navigation_gesture() {
 846     return navigation_gesture_;
 847   }
 848   void set_navigation_gesture(NavigationGesture gesture) {
 849     navigation_gesture_ = gesture;
 850   }
 851
 852   // ---------------------------------------------------------------------------
 853   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
 854   // it in the same order in the .cc file as it was in the header.
 855   // ---------------------------------------------------------------------------
 856
 857   // Settings ------------------------------------------------------------------
 858
 859   WebPreferences webkit_preferences_;
 860   RendererPreferences renderer_preferences_;
 861
 862   HostZoomLevels host_zoom_levels_;
 863
 864   // Whether content state (such as form state, scroll position and page
 865   // contents) should be sent to the browser immediately. This is normally
 866   // false, but set to true by some tests.
 867   bool send_content_state_immediately_;
 868
 869   // Bitwise-ORed set of extra bindings that have been enabled.  See
 870   // BindingsPolicy for details.
 871   int enabled_bindings_;
 872
 873   // If true, we send IPC messages when |preferred_size_| changes.
 874   bool send_preferred_size_changes_;
 875
 876   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
 877   // scroll bars on windows smaller than this size.  Used for windows that the
 878   // browser resizes to the size of the content, such as browser action popups.
 879   // If a render view is set to the minimum size of its content, webkit may add
 880   // scroll bars.  This makes sense for fixed sized windows, but it does not
 881   // make sense when the size of the view was chosen to fit the content.
 882   // This setting ensures that no scroll bars are drawn.  The size limit exists
 883   // because if the view grows beyond a size known to the browser, scroll bars
 884   // should be drawn.
 885   gfx::Size disable_scrollbars_size_limit_;
 886
 887   // Loading state -------------------------------------------------------------
 888
 889   // The gesture that initiated the current navigation.
 890   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 891   NavigationGesture navigation_gesture_;
 892
 893   // Used for popups.
 894   bool opened_by_user_gesture_;
 895
 896   // Whether this RenderView was created by a frame that was suppressing its
 897   // opener. If so, we may want to load pages in a separate process.  See
 898   // decidePolicyForNavigation for details.
 899   bool opener_suppressed_;
 900
 901   // Whether we must stop creating nested message loops for modal dialogs until
 902   // OnSwapOut is called.  This is necessary because modal dialogs have a
 903   // PageGroupLoadDeferrer on the stack that interferes with swapping out.
 904   bool suppress_dialogs_until_swap_out_;
 905
 906   // Holds state pertaining to a navigation that we initiated.  This is held by
 907   // the WebDataSource::ExtraData attribute.  We use pending_navigation_state_
 908   // as a temporary holder for the state until the WebDataSource corresponding
 909   // to the new navigation is created.  See DidCreateDataSource.
 910   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 911   scoped_ptr<FrameMsg_Navigate_Params> pending_navigation_params_;
 912
 913   // Timer used to delay the updating of nav state (see SyncNavigationState).
 914   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
 915
 916   // Page IDs ------------------------------------------------------------------
 917   // See documentation in RenderView.
 918   int32 page_id_;
 919
 920   // Indicates the ID of the last page that we sent a FrameNavigate to the
 921   // browser for. This is used to determine if the most recent transition
 922   // generated a history entry (less than page_id_), or not (equal to or
 923   // greater than). Note that this will be greater than page_id_ if the user
 924   // goes back.
 925   int32 last_page_id_sent_to_browser_;
 926
 927   // The next available page ID to use for this RenderView.  These IDs are
 928   // specific to a given RenderView and the frames within it.
 929   int32 next_page_id_;
 930
 931   // The offset of the current item in the history list.
 932   int history_list_offset_;
 933
 934   // The RenderView's current impression of the history length.  This includes
 935   // any items that have committed in this process, but because of cross-process
 936   // navigations, the history may have some entries that were committed in other
 937   // processes.  We won't know about them until the next navigation in this
 938   // process.
 939   int history_list_length_;
 940
 941   // Counter to track how many frames have sent start notifications but not stop
 942   // notifications. TODO(avi): Remove this once DidStartLoading/DidStopLoading
 943   // are gone.
 944   int frames_in_progress_;
 945
 946   // The list of page IDs for each history item this RenderView knows about.
 947   // Some entries may be -1 if they were rendered by other processes or were
 948   // restored from a previous session.  This lets us detect attempts to
 949   // navigate to stale entries that have been cropped from our history.
 950   std::vector<int32> history_page_ids_;
 951
 952   // UI state ------------------------------------------------------------------
 953
 954   // The state of our target_url transmissions. When we receive a request to
 955   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
 956   // comes back - if a new request comes in before the ACK, we store the new
 957   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
 958   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
 959   // revert to TARGET_INFLIGHT.
 960   //
 961   // We don't need a queue of URLs to send, as only the latest is useful.
 962   enum {
 963     TARGET_NONE,
 964     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
 965     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
 966   } target_url_status_;
 967
 968   // The URL we show the user in the status bar. We use this to determine if we
 969   // want to send a new one (we do not need to send duplicates). It will be
 970   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
 971   // updated last.
 972   GURL target_url_;
 973
 974   // The URL the user's mouse is hovering over.
 975   GURL mouse_over_url_;
 976
 977   // The URL that has keyboard focus.
 978   GURL focus_url_;
 979
 980   // The next target URL we want to send to the browser.
 981   GURL pending_target_url_;
 982
 983   // Indicates whether this view overrides url-based zoom settings.
 984   bool uses_temporary_zoom_level_;
 985
 986 #if defined(OS_ANDROID)
 987   // Cache the old top controls state constraints. Used when updating
 988   // current value only without altering the constraints.
 989   cc::TopControlsState top_controls_constraints_;
 990 #endif
 991
 992   // View ----------------------------------------------------------------------
 993
 994   // Cache the preferred size of the page in order to prevent sending the IPC
 995   // when layout() recomputes but doesn't actually change sizes.
 996   gfx::Size preferred_size_;
 997
 998   // Used to delay determining the preferred size (to avoid intermediate
 999   // states for the sizes).
1000   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
1001
1002   // Bookkeeping to suppress redundant scroll and focus requests for an already
1003   // scrolled and focused editable node.
1004   bool has_scrolled_focused_editable_node_into_rect_;
1005   gfx::Rect rect_for_scrolled_focused_editable_node_;
1006
1007   // Helper objects ------------------------------------------------------------
1008
1009   scoped_ptr<RenderFrameImpl> main_render_frame_;
1010
1011   // The next group of objects all implement RenderViewObserver, so are deleted
1012   // along with the RenderView automatically.  This is why we just store
1013   // weak references.
1014
1015   // The speech recognition dispatcher attached to this view, lazily
1016   // initialized.
1017   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
1018
1019   // BrowserPluginManager attached to this view; lazily initialized.
1020   scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
1021
1022   DevToolsAgent* devtools_agent_;
1023
1024   // Mouse Lock dispatcher attached to this view.
1025   MouseLockDispatcher* mouse_lock_dispatcher_;
1026
1027   scoped_ptr<HistoryController> history_controller_;
1028
1029 #if defined(OS_ANDROID)
1030   // Android Specific ---------------------------------------------------------
1031
1032   // Expected id of the next content intent launched. Used to prevent scheduled
1033   // intents to be launched if aborted.
1034   size_t expected_content_intent_id_;
1035
1036   // List of click-based content detectors.
1037   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
1038   ContentDetectorList content_detectors_;
1039
1040   // A date/time picker object for date and time related input elements.
1041   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
1042 #endif
1043
1044   // Plugins -------------------------------------------------------------------
1045
1046   // All the currently active plugin delegates for this RenderView; kept so
1047   // that we can enumerate them to send updates about things like window
1048   // location or tab focus and visibily. These are non-owning references.
1049   std::set<WebPluginDelegateProxy*> plugin_delegates_;
1050
1051 #if defined(OS_WIN)
1052   // The ID of the focused NPAPI plug-in.
1053   int focused_plugin_id_;
1054 #endif
1055
1056 #if defined(ENABLE_PLUGINS)
1057   PepperPluginInstanceImpl* plugin_find_handler_;
1058
1059   typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
1060   PepperPluginSet active_pepper_instances_;
1061
1062   // TODO(jam): these belong on RenderFrame, once the browser knows which frame
1063   // is focused and sends the IPCs which use these to the correct frame. Until
1064   // then, we must store these on RenderView as that's the one place that knows
1065   // about all the RenderFrames for a page.
1066
1067   // Whether or not the focus is on a PPAPI plugin
1068   PepperPluginInstanceImpl* focused_pepper_plugin_;
1069
1070   // The plugin instance that received the last mouse event. It is set to NULL
1071   // if the last mouse event went to elements other than Pepper plugins.
1072   // |pepper_last_mouse_event_target_| is not owned by this class. We depend on
1073   // the RenderFrameImpl to NULL it out when it destructs.
1074   PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
1075 #endif
1076
1077   // Misc ----------------------------------------------------------------------
1078
1079   // The current and pending file chooser completion objects. If the queue is
1080   // nonempty, the first item represents the currently running file chooser
1081   // callback, and the remaining elements are the other file chooser completion
1082   // still waiting to be run (in order).
1083   struct PendingFileChooser;
1084   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
1085
1086   // The current directory enumeration callback
1087   std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
1088   int enumeration_completion_id_;
1089
1090   // The SessionStorage namespace that we're assigned to has an ID, and that ID
1091   // is passed to us upon creation.  WebKit asks for this ID upon first use and
1092   // uses it whenever asking the browser process to allocate new storage areas.
1093   int64 session_storage_namespace_id_;
1094
1095   // Stores edit commands associated to the next key event.
1096   // Shall be cleared as soon as the next key event is processed.
1097   EditCommands edit_commands_;
1098
1099   // All the registered observers.  We expect this list to be small, so vector
1100   // is fine.
1101   ObserverList<RenderViewObserver> observers_;
1102
1103   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
1104   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
1105
1106   // State associated with the GetWindowSnapshot function.
1107   int next_snapshot_id_;
1108   typedef std::map<int, WindowSnapshotCallback> PendingSnapshotMap;
1109   PendingSnapshotMap pending_snapshots_;
1110
1111   // This field stores drag/drop related info for the event that is currently
1112   // being handled. If the current event results in starting a drag/drop
1113   // session, this info is sent to the browser along with other drag/drop info.
1114   DragEventSourceInfo possible_drag_event_info_;
1115
1116   // NOTE: stats_collection_observer_ should be the last members because their
1117   // constructors call the AddObservers method of RenderViewImpl.
1118   scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
1119
1120   typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
1121   BitmapMap disambiguation_bitmaps_;
1122
1123   // ---------------------------------------------------------------------------
1124   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1125   // sections rather than throwing it randomly at the end. If you're adding a
1126   // bunch of stuff, you should probably create a helper class and put your
1127   // data and methods on that to avoid bloating RenderView more.  You can
1128   // use the Observer interface to filter IPC messages and receive frame change
1129   // notifications.
1130   // ---------------------------------------------------------------------------
1131
1132   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1133 };
1134
1135 }  // namespace content
1136
1137 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_