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