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