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