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/renderer/render_view.h"
  38 #include "content/renderer/mouse_lock_dispatcher.h"
  39 #include "content/renderer/render_frame_impl.h"
  40 #include "content/renderer/render_widget.h"
  41 #include "content/renderer/renderer_date_time_picker.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 #include "webkit/common/webpreferences.h"
  61
  62 #if defined(OS_ANDROID)
  63 #include "content/renderer/android/content_detector.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 ui {
  86 struct SelectedFileInfo;
  87 }  // namespace ui
  88
  89 namespace blink {
  90 class WebApplicationCacheHost;
  91 class WebApplicationCacheHostClient;
  92 class WebDOMMessageEvent;
  93 class WebDataSource;
  94 class WebDateTimeChooserCompletion;
  95 class WebDragData;
  96 class WebGeolocationClient;
  97 class WebGestureEvent;
  98 class WebIconURL;
  99 class WebImage;
 100 class WebPeerConnection00Handler;
 101 class WebPeerConnection00HandlerClient;
 102 class WebMouseEvent;
 103 class WebPeerConnectionHandler;
 104 class WebPeerConnectionHandlerClient;
 105 class WebSocketStreamHandle;
 106 class WebSpeechRecognizer;
 107 class WebStorageNamespace;
 108 class WebTouchEvent;
 109 class WebURLRequest;
 110 struct WebActiveWheelFlingParameters;
 111 struct WebDateTimeChooserParams;
 112 struct WebFileChooserParams;
 113 struct WebFindOptions;
 114 struct WebMediaPlayerAction;
 115 struct WebPluginAction;
 116 struct WebPoint;
 117 struct WebWindowFeatures;
 118
 119 #if defined(OS_ANDROID)
 120 class WebHitTestResult;
 121 #endif
 122 }
 123
 124 namespace webkit_glue {
 125 class WebURLResponseExtraDataImpl;
 126 }
 127
 128 namespace content {
 129 class BrowserPluginManager;
 130 class DeviceOrientationDispatcher;
 131 class DevToolsAgent;
 132 class DocumentState;
 133 class ExternalPopupMenu;
 134 class FaviconHelper;
 135 class GeolocationDispatcher;
 136 class HistoryController;
 137 class HistoryEntry;
 138 class ImageResourceFetcher;
 139 class LoadProgressTracker;
 140 class MidiDispatcher;
 141 class MediaStreamDispatcher;
 142 class MouseLockDispatcher;
 143 class NavigationState;
 144 class PepperPluginInstanceImpl;
 145 class PushMessagingDispatcher;
 146 class RenderViewObserver;
 147 class RenderViewTest;
 148 class RendererAccessibility;
 149 class RendererDateTimePicker;
 150 class RendererWebColorChooserImpl;
 151 class SpeechRecognitionDispatcher;
 152 class WebPluginDelegateProxy;
 153 struct DropData;
 154 struct FaviconURL;
 155 struct FileChooserParams;
 156 struct RenderViewImplParams;
 157
 158 #if defined(OS_ANDROID)
 159 class RendererMediaPlayerManager;
 160 class WebMediaPlayerProxyAndroid;
 161 #endif
 162
 163 //
 164 // RenderView is an object that manages a WebView object, and provides a
 165 // communication interface with an embedding application process
 166 //
 167 class CONTENT_EXPORT RenderViewImpl
 168     : public RenderWidget,
 169       NON_EXPORTED_BASE(public blink::WebViewClient),
 170       NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
 171       public RenderView,
 172       public base::SupportsWeakPtr<RenderViewImpl> {
 173  public:
 174   // Creates a new RenderView. |opener_id| is the routing ID of the RenderView
 175   // responsible for creating this RenderView. Note that if the original opener
 176   // has been closed, |window_was_created_with_opener| will be true and
 177   // |opener_id| will be MSG_ROUTING_NONE.
 178   static RenderViewImpl* Create(int32 opener_id,
 179                                 bool window_was_created_with_opener,
 180                                 const RendererPreferences& renderer_prefs,
 181                                 const WebPreferences& webkit_prefs,
 182                                 int32 routing_id,
 183                                 int32 main_frame_routing_id,
 184                                 int32 surface_id,
 185                                 int64 session_storage_namespace_id,
 186                                 const base::string16& frame_name,
 187                                 bool is_renderer_created,
 188                                 bool swapped_out,
 189                                 bool hidden,
 190                                 bool never_visible,
 191                                 int32 next_page_id,
 192                                 const blink::WebScreenInfo& screen_info,
 193                                 AccessibilityMode accessibility_mode);
 194
 195   // Used by content_layouttest_support to hook into the creation of
 196   // RenderViewImpls.
 197   static void InstallCreateHook(
 198       RenderViewImpl* (*create_render_view_impl)(RenderViewImplParams*));
 199
 200   // Returns the RenderViewImpl containing the given WebView.
 201   static RenderViewImpl* FromWebView(blink::WebView* webview);
 202
 203   // Returns the RenderViewImpl for the given routing ID.
 204   static RenderViewImpl* FromRoutingID(int routing_id);
 205
 206   // May return NULL when the view is closing.
 207   blink::WebView* webview() const;
 208
 209   int history_list_offset() const { return history_list_offset_; }
 210
 211   const WebPreferences& webkit_preferences() const {
 212     return webkit_preferences_;
 213   }
 214
 215   const RendererPreferences& renderer_preferences() const {
 216     return renderer_preferences_;
 217   }
 218
 219   void set_send_content_state_immediately(bool value) {
 220     send_content_state_immediately_ = value;
 221   }
 222
 223   RenderFrameImpl* main_render_frame() { return main_render_frame_.get(); }
 224
 225   // TODO(jam): move to RenderFrameImpl
 226   MediaStreamDispatcher* media_stream_dispatcher() {
 227     return media_stream_dispatcher_;
 228   }
 229
 230   AccessibilityMode accessibility_mode() {
 231     return accessibility_mode_;
 232   }
 233
 234   RendererAccessibility* renderer_accessibility() {
 235     return renderer_accessibility_;
 236   }
 237
 238   MouseLockDispatcher* mouse_lock_dispatcher() {
 239     return mouse_lock_dispatcher_;
 240   }
 241
 242   HistoryController* history_controller() {
 243     return history_controller_.get();
 244   }
 245
 246   // Lazily initialize this view's BrowserPluginManager and return it.
 247   BrowserPluginManager* GetBrowserPluginManager();
 248
 249   // Functions to add and remove observers for this object.
 250   void AddObserver(RenderViewObserver* observer);
 251   void RemoveObserver(RenderViewObserver* observer);
 252
 253   // Returns the StatsCollectionObserver associated with this view, or NULL
 254   // if one wasn't created;
 255   StatsCollectionObserver* GetStatsCollectionObserver() {
 256     return stats_collection_observer_.get();
 257   }
 258
 259   // Adds the given file chooser request to the file_chooser_completion_ queue
 260   // (see that var for more) and requests the chooser be displayed if there are
 261   // no other waiting items in the queue.
 262   //
 263   // Returns true if the chooser was successfully scheduled. False means we
 264   // didn't schedule anything.
 265   bool ScheduleFileChooser(const FileChooserParams& params,
 266                            blink::WebFileChooserCompletion* completion);
 267
 268 #if defined(OS_ANDROID)
 269   void DismissDateTimeDialog();
 270 #endif
 271 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 272   void DidHideExternalPopupMenu();
 273 #endif
 274
 275   bool is_loading() const { return frames_in_progress_ != 0; }
 276
 277   void FrameDidStartLoading(blink::WebFrame* frame);
 278   void FrameDidStopLoading(blink::WebFrame* frame);
 279
 280   void FrameDidChangeLoadProgress(blink::WebFrame* frame,
 281                                   double load_progress);
 282   void FrameDidCommitProvisionalLoad(blink::WebLocalFrame* frame,
 283                                      bool is_new_navigation);
 284
 285   // Plugin-related functions --------------------------------------------------
 286
 287 #if defined(ENABLE_PLUGINS)
 288   // Get/set the plugin which will be used as to handle document find requests.
 289   void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
 290     plugin_find_handler_ = plugin;
 291   }
 292   PepperPluginInstanceImpl* plugin_find_handler() {
 293     return plugin_find_handler_;
 294   }
 295
 296   PepperPluginInstanceImpl* focused_pepper_plugin() {
 297     return focused_pepper_plugin_;
 298   }
 299   PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
 300     return pepper_last_mouse_event_target_;
 301   }
 302   void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
 303     pepper_last_mouse_event_target_ = plugin;
 304   }
 305
 306 #if defined(OS_MACOSX) || defined(OS_WIN)
 307   // Informs the render view that the given plugin has gained or lost focus.
 308   void PluginFocusChanged(bool focused, int plugin_id);
 309 #endif
 310
 311 #if defined(OS_MACOSX)
 312   // Starts plugin IME.
 313   void StartPluginIme();
 314 #endif
 315
 316   // Indicates that the given instance has been created.
 317   void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
 318
 319   // Indicates that the given instance is being destroyed. This is called from
 320   // the destructor, so it's important that the instance is not dereferenced
 321   // from this call.
 322   void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
 323
 324   // Notification that the given plugin is focused or unfocused.
 325   void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
 326
 327   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 328   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 329 #endif  // ENABLE_PLUGINS
 330
 331   void TransferActiveWheelFlingAnimation(
 332       const blink::WebActiveWheelFlingParameters& params);
 333
 334   // Returns true if the focused element is editable text from the perspective
 335   // of IME support (also used for on-screen keyboard). Works correctly inside
 336   // supported PPAPI plug-ins.
 337   bool HasIMETextFocus();
 338
 339   // Callback for use with GetWindowSnapshot.
 340   typedef base::Callback<void(
 341       const gfx::Size&, const std::vector<unsigned char>&)>
 342       WindowSnapshotCallback;
 343
 344   void GetWindowSnapshot(const WindowSnapshotCallback& callback);
 345
 346   // Dispatches the current navigation state to the browser. Called on a
 347   // periodic timer so we don't send too many messages.
 348   void SyncNavigationState();
 349
 350   // Returns the length of the session history of this RenderView. Note that
 351   // this only coincides with the actual length of the session history if this
 352   // RenderView is the currently active RenderView of a WebContents.
 353   unsigned GetLocalSessionHistoryLengthForTesting() const;
 354
 355   // Invokes OnSetFocus and marks the widget as active depending on the value
 356   // of |enable|. This is used for layout tests that need to control the focus
 357   // synchronously from the renderer.
 358   void SetFocusAndActivateForTesting(bool enable);
 359
 360   // Change the device scale factor and force the compositor to resize.
 361   void SetDeviceScaleFactorForTesting(float factor);
 362
 363   // Used to force the size of a window when running layout tests.
 364   void ForceResizeForTesting(const gfx::Size& new_size);
 365
 366   void UseSynchronousResizeModeForTesting(bool enable);
 367
 368   // Control autoresize mode.
 369   void EnableAutoResizeForTesting(const gfx::Size& min_size,
 370                                   const gfx::Size& max_size);
 371   void DisableAutoResizeForTesting(const gfx::Size& new_size);
 372
 373   // IPC::Listener implementation ----------------------------------------------
 374
 375   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 376
 377   // blink::WebWidgetClient implementation ------------------------------------
 378
 379   // Most methods are handled by RenderWidget.
 380   virtual void didFocus();
 381   virtual void didBlur();
 382   virtual void show(blink::WebNavigationPolicy policy);
 383   virtual void runModal();
 384   virtual bool enterFullScreen();
 385   virtual void exitFullScreen();
 386   virtual bool requestPointerLock();
 387   virtual void requestPointerUnlock();
 388   virtual bool isPointerLocked();
 389   virtual void didActivateCompositor() OVERRIDE;
 390   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
 391                                      bool event_cancelled) OVERRIDE;
 392   virtual void initializeLayerTreeView() OVERRIDE;
 393
 394   // blink::WebViewClient implementation --------------------------------------
 395
 396   virtual blink::WebView* createView(blink::WebLocalFrame* creator,
 397                                      const blink::WebURLRequest& request,
 398                                      const blink::WebWindowFeatures& features,
 399                                      const blink::WebString& frame_name,
 400                                      blink::WebNavigationPolicy policy,
 401                                      bool suppress_opener);
 402   virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
 403   virtual blink::WebExternalPopupMenu* createExternalPopupMenu(
 404       const blink::WebPopupMenuInfo& popup_menu_info,
 405       blink::WebExternalPopupMenuClient* popup_menu_client);
 406   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 407   virtual void printPage(blink::WebLocalFrame* frame);
 408   virtual bool enumerateChosenDirectory(
 409       const blink::WebString& path,
 410       blink::WebFileChooserCompletion* chooser_completion);
 411   virtual void didCancelCompositionOnSelectionChange();
 412   virtual void didExecuteCommand(const blink::WebString& command_name);
 413   virtual bool handleCurrentKeyboardEvent();
 414   virtual bool runFileChooser(
 415       const blink::WebFileChooserParams& params,
 416       blink::WebFileChooserCompletion* chooser_completion);
 417   virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
 418                                      const blink::WebString& main_text,
 419                                      const blink::WebString& sub_text,
 420                                      blink::WebTextDirection hint) OVERRIDE;
 421   virtual void hideValidationMessage() OVERRIDE;
 422   virtual void moveValidationMessage(
 423       const blink::WebRect& anchor_in_root_view) OVERRIDE;
 424   virtual void setStatusText(const blink::WebString& text);
 425   virtual void setMouseOverURL(const blink::WebURL& url);
 426   virtual void setKeyboardFocusURL(const blink::WebURL& url);
 427   virtual void startDragging(blink::WebLocalFrame* frame,
 428                              const blink::WebDragData& data,
 429                              blink::WebDragOperationsMask mask,
 430                              const blink::WebImage& image,
 431                              const blink::WebPoint& imageOffset);
 432   virtual bool acceptsLoadDrops();
 433   virtual void focusNext();
 434   virtual void focusPrevious();
 435   virtual void focusedNodeChanged(const blink::WebNode& node);
 436   virtual void numberOfWheelEventHandlersChanged(unsigned num_handlers);
 437   virtual void didUpdateLayout();
 438 #if defined(OS_ANDROID)
 439   virtual bool didTapMultipleTargets(
 440       const blink::WebGestureEvent& event,
 441       const blink::WebVector<blink::WebRect>& target_rects);
 442 #endif
 443   virtual blink::WebString acceptLanguages();
 444   virtual void navigateBackForwardSoon(int offset);
 445   virtual int historyBackListCount();
 446   virtual int historyForwardListCount();
 447   virtual void postAccessibilityEvent(
 448       const blink::WebAXObject& obj, blink::WebAXEvent event);
 449   virtual void didUpdateInspectorSetting(const blink::WebString& key,
 450                                          const blink::WebString& value);
 451   virtual blink::WebGeolocationClient* geolocationClient();
 452   virtual blink::WebSpeechRecognizer* speechRecognizer();
 453   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 454   virtual void zoomLevelChanged();
 455   virtual double zoomLevelToZoomFactor(double zoom_level) const;
 456   virtual double zoomFactorToZoomLevel(double factor) const;
 457   virtual void registerProtocolHandler(const blink::WebString& scheme,
 458                                        const blink::WebURL& base_url,
 459                                        const blink::WebURL& url,
 460                                        const blink::WebString& title);
 461   virtual blink::WebPageVisibilityState visibilityState() const;
 462   virtual blink::WebMIDIClient* webMIDIClient();
 463   virtual blink::WebPushClient* webPushClient();
 464   virtual void draggableRegionsChanged();
 465
 466 #if defined(OS_ANDROID)
 467   virtual void scheduleContentIntent(const blink::WebURL& intent);
 468   virtual void cancelScheduledContentIntents();
 469   virtual blink::WebContentDetectionResult detectContentAround(
 470       const blink::WebHitTestResult& touch_hit);
 471
 472   // Only used on Android since all other platforms implement
 473   // date and time input fields using MULTIPLE_FIELDS_UI
 474   virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
 475                                    blink::WebDateTimeChooserCompletion*);
 476   virtual void didScrollWithKeyboard(const blink::WebSize& delta);
 477 #endif
 478
 479   // blink::WebPageSerializerClient implementation ----------------------------
 480
 481   virtual void didSerializeDataForFrame(
 482       const blink::WebURL& frame_url,
 483       const blink::WebCString& data,
 484       PageSerializationStatus status) OVERRIDE;
 485
 486   // RenderView implementation -------------------------------------------------
 487
 488   virtual bool Send(IPC::Message* message) OVERRIDE;
 489   virtual RenderFrame* GetMainRenderFrame() OVERRIDE;
 490   virtual int GetRoutingID() const OVERRIDE;
 491   virtual int GetPageId() const OVERRIDE;
 492   virtual gfx::Size GetSize() const OVERRIDE;
 493   virtual WebPreferences& GetWebkitPreferences() OVERRIDE;
 494   virtual void SetWebkitPreferences(const WebPreferences& preferences) OVERRIDE;
 495   virtual blink::WebView* GetWebView() OVERRIDE;
 496   virtual blink::WebElement GetFocusedElement() const OVERRIDE;
 497   virtual bool IsEditableNode(const blink::WebNode& node) const OVERRIDE;
 498   virtual bool ShouldDisplayScrollbars(int width, int height) const OVERRIDE;
 499   virtual int GetEnabledBindings() const OVERRIDE;
 500   virtual bool GetContentStateImmediately() const OVERRIDE;
 501   virtual float GetFilteredTimePerFrame() const OVERRIDE;
 502   virtual blink::WebPageVisibilityState GetVisibilityState() const OVERRIDE;
 503   virtual void DidStartLoading() OVERRIDE;
 504   virtual void DidStopLoading() OVERRIDE;
 505   virtual void Repaint(const gfx::Size& size) OVERRIDE;
 506   virtual void SetEditCommandForNextKeyEvent(const std::string& name,
 507                                              const std::string& value) OVERRIDE;
 508   virtual void ClearEditCommands() OVERRIDE;
 509   virtual SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const OVERRIDE;
 510   virtual const std::string& GetAcceptLanguages() const OVERRIDE;
 511 #if defined(OS_ANDROID)
 512   virtual void UpdateTopControlsState(TopControlsState constraints,
 513                                       TopControlsState current,
 514                                       bool animate) OVERRIDE;
 515 #endif
 516
 517   // Please do not add your stuff randomly to the end here. If there is an
 518   // appropriate section, add it there. If not, there are some random functions
 519   // nearer to the top you can add it to.
 520
 521   // Cannot use std::set unfortunately since linked_ptr<> does not support
 522   // operator<.
 523   typedef std::vector<linked_ptr<ImageResourceFetcher> >
 524       ImageResourceFetcherList;
 525
 526  protected:
 527   // RenderWidget overrides:
 528   virtual void Close() OVERRIDE;
 529   virtual void OnResize(const ViewMsg_Resize_Params& params) OVERRIDE;
 530   virtual void DidInitiatePaint() OVERRIDE;
 531   virtual void DidFlushPaint() OVERRIDE;
 532   virtual gfx::Vector2d GetScrollOffset() OVERRIDE;
 533   virtual void DidHandleKeyEvent() OVERRIDE;
 534   virtual bool WillHandleMouseEvent(
 535       const blink::WebMouseEvent& event) OVERRIDE;
 536   virtual bool WillHandleGestureEvent(
 537       const blink::WebGestureEvent& event) OVERRIDE;
 538   virtual void DidHandleMouseEvent(const blink::WebMouseEvent& event) OVERRIDE;
 539   virtual void DidHandleTouchEvent(const blink::WebTouchEvent& event) OVERRIDE;
 540   virtual bool HasTouchEventHandlersAt(const gfx::Point& point) const OVERRIDE;
 541   virtual void OnSetFocus(bool enable) OVERRIDE;
 542   virtual void OnWasHidden() OVERRIDE;
 543   virtual void OnWasShown(bool needs_repainting) OVERRIDE;
 544   virtual GURL GetURLForGraphicsContext3D() OVERRIDE;
 545   virtual bool ForceCompositingModeEnabled() OVERRIDE;
 546   virtual void OnImeSetComposition(
 547       const base::string16& text,
 548       const std::vector<blink::WebCompositionUnderline>& underlines,
 549       int selection_start,
 550       int selection_end) OVERRIDE;
 551   virtual void OnImeConfirmComposition(const base::string16& text,
 552                                        const gfx::Range& replacement_range,
 553                                        bool keep_selection) OVERRIDE;
 554   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
 555   virtual ui::TextInputType GetTextInputType() OVERRIDE;
 556   virtual void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) OVERRIDE;
 557 #if defined(OS_MACOSX) || defined(USE_AURA)
 558   virtual void GetCompositionCharacterBounds(
 559       std::vector<gfx::Rect>* character_bounds) OVERRIDE;
 560   virtual void GetCompositionRange(gfx::Range* range) OVERRIDE;
 561 #endif
 562   virtual bool CanComposeInline() OVERRIDE;
 563   virtual void DidCommitCompositorFrame() OVERRIDE;
 564   virtual void InstrumentWillBeginFrame(int frame_id) OVERRIDE;
 565   virtual void InstrumentDidBeginFrame() OVERRIDE;
 566   virtual void InstrumentDidCancelFrame() OVERRIDE;
 567   virtual void InstrumentWillComposite() OVERRIDE;
 568 #if defined(OS_ANDROID)
 569   virtual void UpdateSelectionRootBounds() OVERRIDE;
 570 #endif
 571
 572  protected:
 573   explicit RenderViewImpl(RenderViewImplParams* params);
 574
 575   void Initialize(RenderViewImplParams* params);
 576   virtual void SetScreenMetricsEmulationParameters(
 577       float device_scale_factor,
 578       const gfx::Point& root_layer_offset,
 579       float root_layer_scale) OVERRIDE;
 580
 581   // Do not delete directly.  This class is reference counted.
 582   virtual ~RenderViewImpl();
 583
 584  private:
 585   // For unit tests.
 586   friend class ExternalPopupMenuTest;
 587   friend class PepperDeviceTest;
 588   friend class RendererAccessibilityTest;
 589   friend class RenderViewTest;
 590
 591   // TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
 592   // utility functions needed in both classes, while we move frame specific
 593   // code away from this class.
 594   friend class RenderFrameImpl;
 595
 596   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuRemoveTest, RemoveOnChange);
 597   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, NormalCase);
 598   FRIEND_TEST_ALL_PREFIXES(ExternalPopupMenuTest, ShowPopupThenNavigate);
 599   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
 600   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 601                            DidFailProvisionalLoadWithErrorForError);
 602   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 603                            DidFailProvisionalLoadWithErrorForCancellation);
 604   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 605                            DontIgnoreBackAfterNavEntryLimit);
 606   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
 607   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
 608   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
 609   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
 610   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
 611   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeTypeChanged);
 612   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
 613   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetAccessibilityMode);
 614   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
 615   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
 616   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 617                            SetEditableSelectionAndComposition);
 618   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
 619   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
 620   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 621                            GetCompositionCharacterBoundsTest);
 622   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
 623   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 624                            DecideNavigationPolicyHandlesAllTopLevel);
 625 #if defined(OS_MACOSX)
 626   FRIEND_TEST_ALL_PREFIXES(RenderViewTest, MacTestCmdUp);
 627 #endif
 628   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndPrune);
 629   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
 630   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
 631   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, BasicRenderFrame);
 632   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, TextInputTypeWithPepper);
 633   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 634                            MessageOrderInDidChangeSelection);
 635   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendCandidateWindowEvents);
 636   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
 637   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
 638
 639   typedef std::map<GURL, double> HostZoomLevels;
 640
 641   enum ErrorPageType {
 642     DNS_ERROR,
 643     HTTP_404,
 644     CONNECTION_ERROR,
 645   };
 646
 647   // Old WebFrameClient implementations ----------------------------------------
 648
 649   // RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
 650   // WebFrameClient. However, many implementations of WebFrameClient methods
 651   // still live here and are called from RenderFrameImpl. These implementations
 652   // are to be moved to RenderFrameImpl <http://crbug.com/361761>.
 653
 654   void didCreateDataSource(blink::WebLocalFrame* frame,
 655                            blink::WebDataSource* datasource);
 656   void didClearWindowObject(blink::WebLocalFrame* frame, int world_id);
 657   void didReceiveTitle(blink::WebLocalFrame* frame,
 658                        const blink::WebString& title,
 659                        blink::WebTextDirection direction);
 660   void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
 661   void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
 662   void didChangeScrollOffset(blink::WebLocalFrame* frame);
 663   bool willCheckAndDispatchMessageEvent(
 664       blink::WebLocalFrame* sourceFrame,
 665       blink::WebFrame* targetFrame,
 666       blink::WebSecurityOrigin targetOrigin,
 667       blink::WebDOMMessageEvent event);
 668
 669   static bool IsReload(const FrameMsg_Navigate_Params& params);
 670
 671   static Referrer GetReferrerFromRequest(
 672       blink::WebFrame* frame,
 673       const blink::WebURLRequest& request);
 674
 675   static WindowOpenDisposition NavigationPolicyToDisposition(
 676       blink::WebNavigationPolicy policy);
 677
 678   void UpdateTitle(blink::WebFrame* frame, const base::string16& title,
 679                    blink::WebTextDirection title_direction);
 680   void UpdateSessionHistory(blink::WebFrame* frame);
 681   void SendUpdateState(HistoryEntry* entry);
 682
 683   // Update current main frame's encoding and send it to browser window.
 684   // Since we want to let users see the right encoding info from menu
 685   // before finishing loading, we call the UpdateEncoding in
 686   // a) function:DidCommitLoadForFrame. When this function is called,
 687   // that means we have got first data. In here we try to get encoding
 688   // of page if it has been specified in http header.
 689   // b) function:DidReceiveTitle. When this function is called,
 690   // that means we have got specified title. Because in most of webpages,
 691   // title tags will follow meta tags. In here we try to get encoding of
 692   // page if it has been specified in meta tag.
 693   // c) function:DidFinishDocumentLoadForFrame. When this function is
 694   // called, that means we have got whole html page. In here we should
 695   // finally get right encoding of page.
 696   void UpdateEncoding(blink::WebFrame* frame,
 697                       const std::string& encoding_name);
 698
 699   // Sends a message and runs a nested message loop.
 700   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 701
 702   // Called when the "pinned to left/right edge" state needs to be updated.
 703   void UpdateScrollState(blink::WebFrame* frame);
 704
 705   // IPC message handlers ------------------------------------------------------
 706   //
 707   // The documentation for these functions should be in
 708   // content/common/*_messages.h for the message that the function is handling.
 709   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 710   void OnMoveCaret(const gfx::Point& point);
 711   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 712   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
 713   void OnAllowBindings(int enabled_bindings_flags);
 714   void OnAllowScriptToClose(bool script_can_close);
 715   void OnCancelDownload(int32 download_id);
 716   void OnClearFocusedElement();
 717   void OnClosePage();
 718   void OnShowContextMenu(const gfx::Point& location);
 719   void OnCopyImageAt(int x, int y);
 720   void OnSetName(const std::string& name);
 721   void OnDeterminePageLanguage();
 722   void OnDisableScrollbarsForSmallWindows(
 723       const gfx::Size& disable_scrollbars_size_limit);
 724   void OnDragSourceEnded(const gfx::Point& client_point,
 725                          const gfx::Point& screen_point,
 726                          blink::WebDragOperation drag_operation);
 727   void OnDragSourceSystemDragEnded();
 728   void OnDragTargetDrop(const gfx::Point& client_pt,
 729                         const gfx::Point& screen_pt,
 730                         int key_modifiers);
 731   void OnDragTargetDragEnter(const DropData& drop_data,
 732                              const gfx::Point& client_pt,
 733                              const gfx::Point& screen_pt,
 734                              blink::WebDragOperationsMask operations_allowed,
 735                              int key_modifiers);
 736   void OnDragTargetDragLeave();
 737   void OnDragTargetDragOver(const gfx::Point& client_pt,
 738                             const gfx::Point& screen_pt,
 739                             blink::WebDragOperationsMask operations_allowed,
 740                             int key_modifiers);
 741   void OnEnablePreferredSizeChangedMode();
 742   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 743   void OnDisableAutoResize(const gfx::Size& new_size);
 744   void OnEnumerateDirectoryResponse(int id,
 745                                     const std::vector<base::FilePath>& paths);
 746   void OnFileChooserResponse(
 747       const std::vector<ui::SelectedFileInfo>& files);
 748   void OnFind(int request_id,
 749               const base::string16&,
 750               const blink::WebFindOptions&);
 751   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 752   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 753       const std::vector<GURL>& links,
 754       const std::vector<base::FilePath>& local_paths,
 755       const base::FilePath& local_directory_name);
 756   void OnMediaPlayerActionAt(const gfx::Point& location,
 757                              const blink::WebMediaPlayerAction& action);
 758   void OnOrientationChangeEvent(int orientation);
 759   void OnPluginActionAt(const gfx::Point& location,
 760                         const blink::WebPluginAction& action);
 761   void OnMoveOrResizeStarted();
 762   void OnPostMessageEvent(const ViewMsg_PostMessage_Params& params);
 763   void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
 764   void OnResetPageEncodingToDefault();
 765   void OnSetAccessibilityMode(AccessibilityMode new_mode);
 766   void OnSetActive(bool active);
 767   void OnSetBackground(const SkBitmap& background);
 768   void OnExitFullscreen();
 769   void OnSetHistoryLengthAndPrune(int history_length, int32 minimum_page_id);
 770   void OnSetInitialFocus(bool reverse);
 771   void OnSetPageEncoding(const std::string& encoding_name);
 772   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
 773   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 774   void OnSetZoomLevel(double zoom_level);
 775   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
 776   void OnStop();
 777   void OnStopFinding(StopFindAction action);
 778   void OnSuppressDialogsUntilSwapOut();
 779   void OnThemeChanged();
 780   void OnUpdateTargetURLAck();
 781   void OnUpdateWebPreferences(const WebPreferences& prefs);
 782   void OnZoom(PageZoom zoom);
 783   void OnEnableViewSourceMode();
 784   void OnDisownOpener();
 785   void OnWindowSnapshotCompleted(const int snapshot_id,
 786       const gfx::Size& size, const std::vector<unsigned char>& png);
 787 #if defined(OS_ANDROID)
 788   void OnActivateNearestFindResult(int request_id, float x, float y);
 789   void OnFindMatchRects(int current_version);
 790   void OnSelectPopupMenuItems(bool canceled,
 791                               const std::vector<int>& selected_indices);
 792   void OnUndoScrollFocusedEditableNodeIntoRect();
 793   void OnUpdateTopControlsState(bool enable_hiding,
 794                                 bool enable_showing,
 795                                 bool animate);
 796   void OnPauseVideo();
 797   void OnExtractSmartClipData(const gfx::Rect& rect);
 798   void GetSelectionRootBounds(gfx::Rect* bounds) const;
 799 #elif defined(OS_MACOSX)
 800   void OnPluginImeCompositionCompleted(const base::string16& text,
 801                                        int plugin_id);
 802   void OnSelectPopupMenuItem(int selected_index);
 803   void OnSetInLiveResize(bool in_live_resize);
 804   void OnSetWindowVisibility(bool visible);
 805   void OnWindowFrameChanged(const gfx::Rect& window_frame,
 806                             const gfx::Rect& view_frame);
 807 #endif
 808
 809   // Adding a new message handler? Please add it in alphabetical order above
 810   // and put it in the same position in the .cc file.
 811
 812   // Misc private functions ----------------------------------------------------
 813   // Check whether the preferred size has changed.
 814   void CheckPreferredSize();
 815
 816   // This callback is triggered when DownloadFavicon completes, either
 817   // succesfully or with a failure. See DownloadFavicon for more
 818   // details.
 819   void DidDownloadFavicon(ImageResourceFetcher* fetcher,
 820                           const SkBitmap& image);
 821
 822   // Requests to download a favicon image. When done, the RenderView is notified
 823   // by way of DidDownloadFavicon. Returns true if the request was successfully
 824   // started, false otherwise. id is used to uniquely identify the request and
 825   // passed back to the DidDownloadFavicon method. If the image has multiple
 826   // frames, the frame whose size is image_size is returned. If the image
 827   // doesn't have a frame at the specified size, the first is returned.
 828   bool DownloadFavicon(int id, const GURL& image_url, int image_size);
 829
 830   // Returns the URL being loaded by the given frame's request.
 831   GURL GetLoadingUrl(blink::WebFrame* frame) const;
 832
 833   // Called to get the WebPlugin to handle find requests in the document.
 834   // Returns NULL if there is no such WebPlugin.
 835   blink::WebPlugin* GetWebPluginForFind();
 836
 837   // Returns true if the |params| navigation is to an entry that has been
 838   // cropped due to a recent navigation the browser did not know about.
 839   bool IsBackForwardToStaleEntry(const FrameMsg_Navigate_Params& params,
 840                                  bool is_reload);
 841
 842   // TODO(nasko): Remove this method when code is migrated to use
 843   // RenderFrameObserver.
 844   void OnNavigate(const FrameMsg_Navigate_Params& params);
 845
 846   // Make the given |frame| show an empty, unscriptable page.
 847   // TODO(creis): Move this to RenderFrame.
 848   void NavigateToSwappedOutURL(blink::WebFrame* frame);
 849
 850   // If we initiated a navigation, this function will populate |document_state|
 851   // with the navigation information saved in OnNavigate().
 852   void PopulateDocumentStateFromPending(DocumentState* document_state);
 853
 854   // Returns a new NavigationState populated with the navigation information
 855   // saved in OnNavigate().
 856   NavigationState* CreateNavigationStateFromPending();
 857
 858   // Processes the command-line flags --enable-viewport,
 859   // --enable-fixed-layout[=w,h] and --enable-pinch.
 860   void ProcessViewLayoutFlags(const base::CommandLine& command_line);
 861
 862 #if defined(OS_ANDROID)
 863   // Launch an Android content intent with the given URL.
 864   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
 865 #endif
 866
 867   // Sends a reply to the current find operation handling if it was a
 868   // synchronous find request.
 869   void SendFindReply(int request_id,
 870                      int match_count,
 871                      int ordinal,
 872                      const blink::WebRect& selection_rect,
 873                      bool final_status_update);
 874
 875   // Starts nav_state_sync_timer_ if it isn't already running.
 876   void StartNavStateSyncTimerIfNecessary();
 877
 878 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 879   void UpdateFontRenderingFromRendererPrefs();
 880 #else
 881   void UpdateFontRenderingFromRendererPrefs() {}
 882 #endif
 883
 884   // Update the target url and tell the browser that the target URL has changed.
 885   // If |url| is empty, show |fallback_url|.
 886   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
 887
 888   // Tells the browser what the new list of favicons for the webpage is.
 889   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
 890
 891   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
 892   // the browser.
 893   void DidStopLoadingIcons();
 894
 895   // Coordinate conversion -----------------------------------------------------
 896
 897   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
 898
 899   // RenderFrameImpl accessible state ------------------------------------------
 900   // The following section is the set of methods that RenderFrameImpl needs
 901   // to access RenderViewImpl state. The set of state variables are page-level
 902   // specific, so they don't belong in RenderFrameImpl and should remain in
 903   // this object.
 904   ObserverList<RenderViewObserver>& observers() {
 905     return observers_;
 906   }
 907
 908   // TODO(nasko): Remove this method when we move to frame proxy objects, since
 909   // the concept of swapped out will be eliminated.
 910   void set_is_swapped_out(bool swapped_out) {
 911     is_swapped_out_ = swapped_out;
 912   }
 913
 914   NavigationGesture navigation_gesture() {
 915     return navigation_gesture_;
 916   }
 917   void set_navigation_gesture(NavigationGesture gesture) {
 918     navigation_gesture_ = gesture;
 919   }
 920
 921   // ---------------------------------------------------------------------------
 922   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
 923   // it in the same order in the .cc file as it was in the header.
 924   // ---------------------------------------------------------------------------
 925
 926   // Settings ------------------------------------------------------------------
 927
 928   WebPreferences webkit_preferences_;
 929   RendererPreferences renderer_preferences_;
 930
 931   HostZoomLevels host_zoom_levels_;
 932
 933   // Whether content state (such as form state, scroll position and page
 934   // contents) should be sent to the browser immediately. This is normally
 935   // false, but set to true by some tests.
 936   bool send_content_state_immediately_;
 937
 938   // Bitwise-ORed set of extra bindings that have been enabled.  See
 939   // BindingsPolicy for details.
 940   int enabled_bindings_;
 941
 942   // If true, we send IPC messages when |preferred_size_| changes.
 943   bool send_preferred_size_changes_;
 944
 945   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
 946   // scroll bars on windows smaller than this size.  Used for windows that the
 947   // browser resizes to the size of the content, such as browser action popups.
 948   // If a render view is set to the minimum size of its content, webkit may add
 949   // scroll bars.  This makes sense for fixed sized windows, but it does not
 950   // make sense when the size of the view was chosen to fit the content.
 951   // This setting ensures that no scroll bars are drawn.  The size limit exists
 952   // because if the view grows beyond a size known to the browser, scroll bars
 953   // should be drawn.
 954   gfx::Size disable_scrollbars_size_limit_;
 955
 956   // Loading state -------------------------------------------------------------
 957
 958   // The gesture that initiated the current navigation.
 959   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 960   NavigationGesture navigation_gesture_;
 961
 962   // Used for popups.
 963   bool opened_by_user_gesture_;
 964
 965   // Whether this RenderView was created by a frame that was suppressing its
 966   // opener. If so, we may want to load pages in a separate process.  See
 967   // decidePolicyForNavigation for details.
 968   bool opener_suppressed_;
 969
 970   // Whether we must stop creating nested message loops for modal dialogs until
 971   // OnSwapOut is called.  This is necessary because modal dialogs have a
 972   // PageGroupLoadDeferrer on the stack that interferes with swapping out.
 973   bool suppress_dialogs_until_swap_out_;
 974
 975   // Holds state pertaining to a navigation that we initiated.  This is held by
 976   // the WebDataSource::ExtraData attribute.  We use pending_navigation_state_
 977   // as a temporary holder for the state until the WebDataSource corresponding
 978   // to the new navigation is created.  See DidCreateDataSource.
 979   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 980   scoped_ptr<FrameMsg_Navigate_Params> pending_navigation_params_;
 981
 982   // Timer used to delay the updating of nav state (see SyncNavigationState).
 983   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
 984
 985   // Page IDs ------------------------------------------------------------------
 986   // See documentation in RenderView.
 987   int32 page_id_;
 988
 989   // Indicates the ID of the last page that we sent a FrameNavigate to the
 990   // browser for. This is used to determine if the most recent transition
 991   // generated a history entry (less than page_id_), or not (equal to or
 992   // greater than). Note that this will be greater than page_id_ if the user
 993   // goes back.
 994   int32 last_page_id_sent_to_browser_;
 995
 996   // The next available page ID to use for this RenderView.  These IDs are
 997   // specific to a given RenderView and the frames within it.
 998   int32 next_page_id_;
 999
1000   // The offset of the current item in the history list.
1001   int history_list_offset_;
1002
1003   // The RenderView's current impression of the history length.  This includes
1004   // any items that have committed in this process, but because of cross-process
1005   // navigations, the history may have some entries that were committed in other
1006   // processes.  We won't know about them until the next navigation in this
1007   // process.
1008   int history_list_length_;
1009
1010   // Counter to track how many frames have sent start notifications but not
1011   // stop notifications.
1012   // TODO(japhet): This state will need to move to the browser process
1013   // (probably WebContents) for site isolation.
1014   int frames_in_progress_;
1015
1016   // The list of page IDs for each history item this RenderView knows about.
1017   // Some entries may be -1 if they were rendered by other processes or were
1018   // restored from a previous session.  This lets us detect attempts to
1019   // navigate to stale entries that have been cropped from our history.
1020   std::vector<int32> history_page_ids_;
1021
1022   // Page info -----------------------------------------------------------------
1023
1024   // The last gotten main frame's encoding.
1025   std::string last_encoding_name_;
1026
1027   // UI state ------------------------------------------------------------------
1028
1029   // The state of our target_url transmissions. When we receive a request to
1030   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
1031   // comes back - if a new request comes in before the ACK, we store the new
1032   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
1033   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
1034   // revert to TARGET_INFLIGHT.
1035   //
1036   // We don't need a queue of URLs to send, as only the latest is useful.
1037   enum {
1038     TARGET_NONE,
1039     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
1040     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
1041   } target_url_status_;
1042
1043   // The URL we show the user in the status bar. We use this to determine if we
1044   // want to send a new one (we do not need to send duplicates). It will be
1045   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
1046   // updated last.
1047   GURL target_url_;
1048
1049   // The URL the user's mouse is hovering over.
1050   GURL mouse_over_url_;
1051
1052   // The URL that has keyboard focus.
1053   GURL focus_url_;
1054
1055   // The next target URL we want to send to the browser.
1056   GURL pending_target_url_;
1057
1058 #if defined(OS_ANDROID)
1059   // Cache the old top controls state constraints. Used when updating
1060   // current value only without altering the constraints.
1061   cc::TopControlsState top_controls_constraints_;
1062 #endif
1063
1064   // View ----------------------------------------------------------------------
1065
1066   // Cache the preferred size of the page in order to prevent sending the IPC
1067   // when layout() recomputes but doesn't actually change sizes.
1068   gfx::Size preferred_size_;
1069
1070   // Used to delay determining the preferred size (to avoid intermediate
1071   // states for the sizes).
1072   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
1073
1074   // These store the "is main frame is scrolled all the way to the left
1075   // or right" state that was last sent to the browser.
1076   bool cached_is_main_frame_pinned_to_left_;
1077   bool cached_is_main_frame_pinned_to_right_;
1078
1079   // Bookkeeping to suppress redundant scroll and focus requests for an already
1080   // scrolled and focused editable node.
1081   bool has_scrolled_focused_editable_node_into_rect_;
1082   gfx::Rect rect_for_scrolled_focused_editable_node_;
1083
1084   // Helper objects ------------------------------------------------------------
1085
1086   scoped_ptr<RenderFrameImpl> main_render_frame_;
1087
1088   // The next group of objects all implement RenderViewObserver, so are deleted
1089   // along with the RenderView automatically.  This is why we just store
1090   // weak references.
1091
1092   // The push messaging dispatcher attached to this view, lazily initialized.
1093   PushMessagingDispatcher* push_messaging_dispatcher_;
1094
1095   // The geolocation dispatcher attached to this view, lazily initialized.
1096   GeolocationDispatcher* geolocation_dispatcher_;
1097
1098   // The speech recognition dispatcher attached to this view, lazily
1099   // initialized.
1100   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
1101
1102   // Device orientation dispatcher attached to this view; lazily initialized.
1103   DeviceOrientationDispatcher* device_orientation_dispatcher_;
1104
1105   // MediaStream dispatcher attached to this view; lazily initialized.
1106   MediaStreamDispatcher* media_stream_dispatcher_;
1107
1108   // BrowserPluginManager attached to this view; lazily initialized.
1109   scoped_refptr<BrowserPluginManager> browser_plugin_manager_;
1110
1111   // MidiClient attached to this view; lazily initialized.
1112   MidiDispatcher* midi_dispatcher_;
1113
1114   DevToolsAgent* devtools_agent_;
1115
1116   // The current accessibility mode.
1117   AccessibilityMode accessibility_mode_;
1118
1119   // Only valid if |accessibility_mode_| is anything other than
1120   // AccessibilityModeOff.
1121   RendererAccessibility* renderer_accessibility_;
1122
1123   // Mouse Lock dispatcher attached to this view.
1124   MouseLockDispatcher* mouse_lock_dispatcher_;
1125
1126   scoped_ptr<HistoryController> history_controller_;
1127
1128 #if defined(OS_ANDROID)
1129   // Android Specific ---------------------------------------------------------
1130
1131   // Expected id of the next content intent launched. Used to prevent scheduled
1132   // intents to be launched if aborted.
1133   size_t expected_content_intent_id_;
1134
1135   // List of click-based content detectors.
1136   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
1137   ContentDetectorList content_detectors_;
1138
1139   // The media player manager for managing all the media players on this view
1140   // for communicating with the real media player objects in browser process.
1141   RendererMediaPlayerManager* media_player_manager_;
1142
1143   // A date/time picker object for date and time related input elements.
1144   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
1145 #endif
1146
1147   // Plugins -------------------------------------------------------------------
1148
1149   // All the currently active plugin delegates for this RenderView; kept so
1150   // that we can enumerate them to send updates about things like window
1151   // location or tab focus and visibily. These are non-owning references.
1152   std::set<WebPluginDelegateProxy*> plugin_delegates_;
1153
1154 #if defined(OS_WIN)
1155   // The ID of the focused NPAPI plug-in.
1156   int focused_plugin_id_;
1157 #endif
1158
1159 #if defined(ENABLE_PLUGINS)
1160   PepperPluginInstanceImpl* plugin_find_handler_;
1161
1162   typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
1163   PepperPluginSet active_pepper_instances_;
1164
1165   // TODO(jam): these belong on RenderFrame, once the browser knows which frame
1166   // is focused and sends the IPCs which use these to the correct frame. Until
1167   // then, we must store these on RenderView as that's the one place that knows
1168   // about all the RenderFrames for a page.
1169
1170   // Whether or not the focus is on a PPAPI plugin
1171   PepperPluginInstanceImpl* focused_pepper_plugin_;
1172
1173   // The plugin instance that received the last mouse event. It is set to NULL
1174   // if the last mouse event went to elements other than Pepper plugins.
1175   // |pepper_last_mouse_event_target_| is not owned by this class. We depend on
1176   // the RenderFrameImpl to NULL it out when it destructs.
1177   PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
1178 #endif
1179
1180   // Misc ----------------------------------------------------------------------
1181
1182   // The current and pending file chooser completion objects. If the queue is
1183   // nonempty, the first item represents the currently running file chooser
1184   // callback, and the remaining elements are the other file chooser completion
1185   // still waiting to be run (in order).
1186   struct PendingFileChooser;
1187   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
1188
1189   // The current directory enumeration callback
1190   std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
1191   int enumeration_completion_id_;
1192
1193   // Reports load progress to the browser.
1194   scoped_ptr<LoadProgressTracker> load_progress_tracker_;
1195
1196   // The SessionStorage namespace that we're assigned to has an ID, and that ID
1197   // is passed to us upon creation.  WebKit asks for this ID upon first use and
1198   // uses it whenever asking the browser process to allocate new storage areas.
1199   int64 session_storage_namespace_id_;
1200
1201   // Stores edit commands associated to the next key event.
1202   // Shall be cleared as soon as the next key event is processed.
1203   EditCommands edit_commands_;
1204
1205 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1206   // The external popup for the currently showing select popup.
1207   scoped_ptr<ExternalPopupMenu> external_popup_menu_;
1208 #endif
1209
1210   // All the registered observers.  We expect this list to be small, so vector
1211   // is fine.
1212   ObserverList<RenderViewObserver> observers_;
1213
1214   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
1215   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
1216
1217   // State associated with the GetWindowSnapshot function.
1218   int next_snapshot_id_;
1219   typedef std::map<int, WindowSnapshotCallback> PendingSnapshotMap;
1220   PendingSnapshotMap pending_snapshots_;
1221
1222   // This field stores drag/drop related info for the event that is currently
1223   // being handled. If the current event results in starting a drag/drop
1224   // session, this info is sent to the browser along with other drag/drop info.
1225   DragEventSourceInfo possible_drag_event_info_;
1226
1227   // NOTE: stats_collection_observer_ should be the last members because their
1228   // constructors call the AddObservers method of RenderViewImpl.
1229   scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
1230
1231   typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
1232   BitmapMap disambiguation_bitmaps_;
1233
1234   // ---------------------------------------------------------------------------
1235   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1236   // sections rather than throwing it randomly at the end. If you're adding a
1237   // bunch of stuff, you should probably create a helper class and put your
1238   // data and methods on that to avoid bloating RenderView more.  You can
1239   // use the Observer interface to filter IPC messages and receive frame change
1240   // notifications.
1241   // ---------------------------------------------------------------------------
1242
1243   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1244 };
1245
1246 }  // namespace content
1247
1248 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_