content/renderer/render_view_impl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
   6 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
   7
   8 #include <deque>
   9 #include <map>
  10 #include <set>
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/basictypes.h"
  15 #include "base/gtest_prod_util.h"
  16 #include "base/id_map.h"
  17 #include "base/memory/linked_ptr.h"
  18 #include "base/memory/weak_ptr.h"
  19 #include "base/observer_list.h"
  20 #include "base/process/process.h"
  21 #include "base/strings/string16.h"
  22 #include "base/timer/timer.h"
  23 #include "build/build_config.h"
  24 #include "cc/input/top_controls_state.h"
  25 #include "cc/resources/shared_bitmap.h"
  26 #include "content/common/content_export.h"
  27 #include "content/common/drag_event_source_info.h"
  28 #include "content/common/edit_command.h"
  29 #include "content/common/frame_message_enums.h"
  30 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  31 #include "content/common/navigation_gesture.h"
  32 #include "content/common/navigation_params.h"
  33 #include "content/common/view_message_enums.h"
  34 #include "content/public/common/page_zoom.h"
  35 #include "content/public/common/referrer.h"
  36 #include "content/public/common/renderer_preferences.h"
  37 #include "content/public/common/stop_find_action.h"
  38 #include "content/public/common/top_controls_state.h"
  39 #include "content/public/common/web_preferences.h"
  40 #include "content/public/renderer/render_view.h"
  41 #include "content/renderer/mouse_lock_dispatcher.h"
  42 #include "content/renderer/render_frame_impl.h"
  43 #include "content/renderer/render_widget.h"
  44 #include "content/renderer/stats_collection_observer.h"
  45 #include "ipc/ipc_platform_file.h"
  46 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  47 #include "third_party/WebKit/public/platform/WebPageVisibilityState.h"
  48 #include "third_party/WebKit/public/web/WebAXObject.h"
  49 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
  50 #include "third_party/WebKit/public/web/WebDataSource.h"
  51 #include "third_party/WebKit/public/web/WebElement.h"
  52 #include "third_party/WebKit/public/web/WebHistoryItem.h"
  53 #include "third_party/WebKit/public/web/WebIconURL.h"
  54 #include "third_party/WebKit/public/web/WebInputEvent.h"
  55 #include "third_party/WebKit/public/web/WebNavigationType.h"
  56 #include "third_party/WebKit/public/web/WebNode.h"
  57 #include "third_party/WebKit/public/web/WebPageSerializerClient.h"
  58 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
  59 #include "third_party/WebKit/public/web/WebViewClient.h"
  60 #include "ui/base/window_open_disposition.h"
  61 #include "ui/surface/transport_dib.h"
  62
  63 #if defined(OS_ANDROID)
  64 #include "content/renderer/android/content_detector.h"
  65 #include "content/renderer/android/renderer_date_time_picker.h"
  66 #include "third_party/WebKit/public/web/WebContentDetectionResult.h"
  67 #endif
  68
  69 #if defined(COMPILER_MSVC)
  70 // RenderViewImpl is a diamond-shaped hierarchy, with WebWidgetClient at the
  71 // root. VS warns when we inherit the WebWidgetClient method implementations
  72 // from RenderWidget.  It's safe to ignore that warning.
  73 #pragma warning(disable: 4250)
  74 #endif
  75
  76 class PepperDeviceTest;
  77 class SkBitmap;
  78 struct PP_NetAddress_Private;
  79 struct FrameMsg_Navigate_Params;
  80 struct ViewMsg_New_Params;
  81 struct ViewMsg_PostMessage_Params;
  82 struct ViewMsg_Resize_Params;
  83 struct ViewMsg_StopFinding_Params;
  84
  85 namespace base {
  86 class CommandLine;
  87 }
  88
  89 namespace blink {
  90 class WebApplicationCacheHost;
  91 class WebApplicationCacheHostClient;
  92 class WebDOMMessageEvent;
  93 class WebDataSource;
  94 class WebDateTimeChooserCompletion;
  95 class WebDragData;
  96 class WebGestureEvent;
  97 class WebIconURL;
  98 class WebImage;
  99 class WebPeerConnection00Handler;
 100 class WebPeerConnection00HandlerClient;
 101 class WebMouseEvent;
 102 class WebPeerConnectionHandler;
 103 class WebPeerConnectionHandlerClient;
 104 class WebSpeechRecognizer;
 105 class WebStorageNamespace;
 106 class WebTouchEvent;
 107 class WebURLRequest;
 108 struct WebActiveWheelFlingParameters;
 109 struct WebDateTimeChooserParams;
 110 struct WebFileChooserParams;
 111 struct WebFindOptions;
 112 struct WebMediaPlayerAction;
 113 struct WebPluginAction;
 114 struct WebPoint;
 115 struct WebWindowFeatures;
 116
 117 #if defined(OS_ANDROID)
 118 class WebHitTestResult;
 119 #endif
 120 }  // namespace blink
 121
 122 namespace content {
 123
 124 class DevToolsAgent;
 125 class DocumentState;
 126 class HistoryController;
 127 class HistoryEntry;
 128 class MouseLockDispatcher;
 129 class NavigationState;
 130 class PageState;
 131 class PepperPluginInstanceImpl;
 132 class RenderViewImplTest;
 133 class RenderViewObserver;
 134 class RenderViewTest;
 135 class RendererDateTimePicker;
 136 class RendererWebColorChooserImpl;
 137 class SpeechRecognitionDispatcher;
 138 class WebPluginDelegateProxy;
 139 struct DropData;
 140 struct FaviconURL;
 141 struct FileChooserParams;
 142 struct FileChooserFileInfo;
 143 struct RenderViewImplParams;
 144
 145 #if defined(OS_ANDROID)
 146 class WebMediaPlayerProxyAndroid;
 147 #endif
 148
 149 //
 150 // RenderView is an object that manages a WebView object, and provides a
 151 // communication interface with an embedding application process.
 152 //
 153 class CONTENT_EXPORT RenderViewImpl
 154     : public RenderWidget,
 155       NON_EXPORTED_BASE(public blink::WebViewClient),
 156       NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
 157       public RenderView,
 158       public base::SupportsWeakPtr<RenderViewImpl> {
 159  public:
 160   // Creates a new RenderView. |opener_id| is the routing ID of the RenderView
 161   // responsible for creating this RenderView. Note that if the original opener
 162   // has been closed, |window_was_created_with_opener| will be true and
 163   // |opener_id| will be MSG_ROUTING_NONE. When |swapped_out| is true, the
 164   // |proxy_routing_id| is specified, so a RenderFrameProxy can be created for
 165   // this RenderView's main RenderFrame.
 166   static RenderViewImpl* Create(const ViewMsg_New_Params& params,
 167                                 CompositorDependencies* compositor_deps,
 168                                 bool was_created_by_renderer);
 169
 170   // Used by content_layouttest_support to hook into the creation of
 171   // RenderViewImpls.
 172   static void InstallCreateHook(
 173       RenderViewImpl* (*create_render_view_impl)(const ViewMsg_New_Params&));
 174
 175   // Returns the RenderViewImpl containing the given WebView.
 176   static RenderViewImpl* FromWebView(blink::WebView* webview);
 177
 178   // Returns the RenderViewImpl for the given routing ID.
 179   static RenderViewImpl* FromRoutingID(int routing_id);
 180
 181   static size_t GetRenderViewCount();
 182
 183   // May return NULL when the view is closing.
 184   blink::WebView* webview() const;
 185
 186   const WebPreferences& webkit_preferences() const {
 187     return webkit_preferences_;
 188   }
 189
 190   const RendererPreferences& renderer_preferences() const {
 191     return renderer_preferences_;
 192   }
 193
 194   void set_send_content_state_immediately(bool value) {
 195     send_content_state_immediately_ = value;
 196   }
 197
 198   MouseLockDispatcher* mouse_lock_dispatcher() {
 199     return mouse_lock_dispatcher_;
 200   }
 201
 202   HistoryController* history_controller() {
 203     return history_controller_.get();
 204   }
 205
 206   // Functions to add and remove observers for this object.
 207   void AddObserver(RenderViewObserver* observer);
 208   void RemoveObserver(RenderViewObserver* observer);
 209
 210   // Returns the StatsCollectionObserver associated with this view, or NULL
 211   // if one wasn't created;
 212   StatsCollectionObserver* GetStatsCollectionObserver() {
 213     return stats_collection_observer_.get();
 214   }
 215
 216   // Adds the given file chooser request to the file_chooser_completion_ queue
 217   // (see that var for more) and requests the chooser be displayed if there are
 218   // no other waiting items in the queue.
 219   //
 220   // Returns true if the chooser was successfully scheduled. False means we
 221   // didn't schedule anything.
 222   bool ScheduleFileChooser(const FileChooserParams& params,
 223                            blink::WebFileChooserCompletion* completion);
 224
 225 #if defined(OS_ANDROID)
 226   void DismissDateTimeDialog();
 227 #endif
 228
 229   bool is_loading() const { return frames_in_progress_ != 0; }
 230
 231   void FrameDidStartLoading(blink::WebFrame* frame);
 232   void FrameDidStopLoading(blink::WebFrame* frame);
 233
 234   // Plugin-related functions --------------------------------------------------
 235
 236 #if defined(ENABLE_PLUGINS)
 237   // Get/set the plugin which will be used as to handle document find requests.
 238   void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
 239     plugin_find_handler_ = plugin;
 240   }
 241   PepperPluginInstanceImpl* plugin_find_handler() {
 242     return plugin_find_handler_;
 243   }
 244
 245   PepperPluginInstanceImpl* focused_pepper_plugin() {
 246     return focused_pepper_plugin_;
 247   }
 248   PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
 249     return pepper_last_mouse_event_target_;
 250   }
 251   void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
 252     pepper_last_mouse_event_target_ = plugin;
 253   }
 254
 255 #if defined(OS_MACOSX) || defined(OS_WIN)
 256   // Informs the render view that the given plugin has gained or lost focus.
 257   void PluginFocusChanged(bool focused, int plugin_id);
 258 #endif
 259
 260 #if defined(OS_MACOSX)
 261   // Starts plugin IME.
 262   void StartPluginIme();
 263 #endif
 264
 265   // Indicates that the given instance has been created.
 266   void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
 267
 268   // Indicates that the given instance is being destroyed. This is called from
 269   // the destructor, so it's important that the instance is not dereferenced
 270   // from this call.
 271   void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
 272
 273   // Notification that the given plugin is focused or unfocused.
 274   void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
 275
 276   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 277   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 278 #endif  // ENABLE_PLUGINS
 279
 280   void TransferActiveWheelFlingAnimation(
 281       const blink::WebActiveWheelFlingParameters& params);
 282
 283   // Returns true if the focused element is editable text from the perspective
 284   // of IME support (also used for on-screen keyboard). Works correctly inside
 285   // supported PPAPI plug-ins.
 286   bool HasIMETextFocus();
 287
 288   // Callback for use with GetWindowSnapshot.
 289   typedef base::Callback<void(
 290       const gfx::Size&, const std::vector<unsigned char>&)>
 291       WindowSnapshotCallback;
 292
 293   void GetWindowSnapshot(const WindowSnapshotCallback& callback);
 294
 295   // Dispatches the current navigation state to the browser. Called on a
 296   // periodic timer so we don't send too many messages.
 297   void SyncNavigationState();
 298
 299   // Returns the length of the session history of this RenderView. Note that
 300   // this only coincides with the actual length of the session history if this
 301   // RenderView is the currently active RenderView of a WebContents.
 302   unsigned GetLocalSessionHistoryLengthForTesting() const;
 303
 304   // Invokes OnSetFocus and marks the widget as active depending on the value
 305   // of |enable|. This is used for layout tests that need to control the focus
 306   // synchronously from the renderer.
 307   void SetFocusAndActivateForTesting(bool enable);
 308
 309   // Change the device scale factor and force the compositor to resize.
 310   void SetDeviceScaleFactorForTesting(float factor);
 311
 312   // Change the device ICC color profile while running a layout test.
 313   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
 314   void ResetDeviceColorProfileForTesting() override;
 315
 316   // Used to force the size of a window when running layout tests.
 317   void ForceResizeForTesting(const gfx::Size& new_size);
 318
 319   void UseSynchronousResizeModeForTesting(bool enable);
 320
 321   // Control autoresize mode.
 322   void EnableAutoResizeForTesting(const gfx::Size& min_size,
 323                                   const gfx::Size& max_size);
 324   void DisableAutoResizeForTesting(const gfx::Size& new_size);
 325
 326   // IPC::Listener implementation ----------------------------------------------
 327
 328   bool OnMessageReceived(const IPC::Message& msg) override;
 329
 330   // blink::WebWidgetClient implementation ------------------------------------
 331
 332   // Most methods are handled by RenderWidget.
 333   virtual void didFocus();
 334   virtual void didBlur();
 335   virtual void show(blink::WebNavigationPolicy policy);
 336   virtual bool requestPointerLock();
 337   virtual void requestPointerUnlock();
 338   virtual bool isPointerLocked();
 339   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
 340                                      bool event_cancelled) override;
 341   virtual void initializeLayerTreeView() override;
 342
 343   // blink::WebViewClient implementation --------------------------------------
 344
 345   virtual blink::WebView* createView(blink::WebLocalFrame* creator,
 346                                      const blink::WebURLRequest& request,
 347                                      const blink::WebWindowFeatures& features,
 348                                      const blink::WebString& frame_name,
 349                                      blink::WebNavigationPolicy policy,
 350                                      bool suppress_opener);
 351   virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
 352   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 353   virtual void printPage(blink::WebLocalFrame* frame);
 354   virtual bool enumerateChosenDirectory(
 355       const blink::WebString& path,
 356       blink::WebFileChooserCompletion* chooser_completion);
 357   virtual void saveImageFromDataURL(const blink::WebString& data_url);
 358   virtual void didCancelCompositionOnSelectionChange();
 359   virtual bool handleCurrentKeyboardEvent();
 360   virtual bool runFileChooser(
 361       const blink::WebFileChooserParams& params,
 362       blink::WebFileChooserCompletion* chooser_completion);
 363   void SetValidationMessageDirection(base::string16* main_text,
 364                                      blink::WebTextDirection main_text_hint,
 365                                      base::string16* sub_text,
 366                                      blink::WebTextDirection sub_text_hint);
 367   virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
 368                                      const blink::WebString& main_text,
 369                                      blink::WebTextDirection main_text_hint,
 370                                      const blink::WebString& sub_text,
 371                                      blink::WebTextDirection hint) override;
 372   virtual void hideValidationMessage() override;
 373   virtual void moveValidationMessage(
 374       const blink::WebRect& anchor_in_root_view) override;
 375   virtual void setStatusText(const blink::WebString& text);
 376   virtual void setMouseOverURL(const blink::WebURL& url);
 377   virtual void setKeyboardFocusURL(const blink::WebURL& url);
 378   virtual void startDragging(blink::WebLocalFrame* frame,
 379                              const blink::WebDragData& data,
 380                              blink::WebDragOperationsMask mask,
 381                              const blink::WebImage& image,
 382                              const blink::WebPoint& imageOffset);
 383   virtual bool acceptsLoadDrops();
 384   virtual void focusNext();
 385   virtual void focusPrevious();
 386   virtual void focusedNodeChanged(const blink::WebNode& fromNode,
 387                                   const blink::WebNode& toNode);
 388   virtual void didUpdateLayout();
 389 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 390   virtual bool didTapMultipleTargets(
 391       const blink::WebSize& inner_viewport_offset,
 392       const blink::WebRect& touch_rect,
 393       const blink::WebVector<blink::WebRect>& target_rects);
 394 #endif
 395   virtual blink::WebString acceptLanguages();
 396   virtual void navigateBackForwardSoon(int offset);
 397   virtual int historyBackListCount();
 398   virtual int historyForwardListCount();
 399   virtual blink::WebSpeechRecognizer* speechRecognizer();
 400   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 401   virtual void zoomLevelChanged();
 402   virtual double zoomLevelToZoomFactor(double zoom_level) const;
 403   virtual double zoomFactorToZoomLevel(double factor) const;
 404   virtual void registerProtocolHandler(const blink::WebString& scheme,
 405                                        const blink::WebURL& url,
 406                                        const blink::WebString& title);
 407   virtual void unregisterProtocolHandler(const blink::WebString& scheme,
 408                                          const blink::WebURL& url);
 409   virtual blink::WebPageVisibilityState visibilityState() const;
 410   virtual void draggableRegionsChanged();
 411
 412 #if defined(OS_ANDROID)
 413   virtual void scheduleContentIntent(const blink::WebURL& intent);
 414   virtual void cancelScheduledContentIntents();
 415   virtual blink::WebContentDetectionResult detectContentAround(
 416       const blink::WebHitTestResult& touch_hit);
 417
 418   // Only used on Android since all other platforms implement
 419   // date and time input fields using MULTIPLE_FIELDS_UI
 420   virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
 421                                    blink::WebDateTimeChooserCompletion*);
 422   virtual void didScrollWithKeyboard(const blink::WebSize& delta);
 423 #endif
 424
 425   // blink::WebPageSerializerClient implementation ----------------------------
 426
 427   virtual void didSerializeDataForFrame(
 428       const blink::WebURL& frame_url,
 429       const blink::WebCString& data,
 430       PageSerializationStatus status) override;
 431
 432   // RenderView implementation -------------------------------------------------
 433
 434   bool Send(IPC::Message* message) override;
 435   RenderFrameImpl* GetMainRenderFrame() override;
 436   int GetRoutingID() const override;
 437   gfx::Size GetSize() const override;
 438   WebPreferences& GetWebkitPreferences() override;
 439   void SetWebkitPreferences(const WebPreferences& preferences) override;
 440   blink::WebView* GetWebView() override;
 441   bool IsEditableNode(const blink::WebNode& node) const override;
 442   bool ShouldDisplayScrollbars(int width, int height) const override;
 443   int GetEnabledBindings() const override;
 444   bool GetContentStateImmediately() const override;
 445   blink::WebPageVisibilityState GetVisibilityState() const override;
 446   void DidStartLoading() override;
 447   void DidStopLoading() override;
 448   void Repaint(const gfx::Size& size) override;
 449   void SetEditCommandForNextKeyEvent(const std::string& name,
 450                                      const std::string& value) override;
 451   void ClearEditCommands() override;
 452   SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const override;
 453   const std::string& GetAcceptLanguages() const override;
 454 #if defined(OS_ANDROID)
 455   void UpdateTopControlsState(TopControlsState constraints,
 456                               TopControlsState current,
 457                               bool animate) override;
 458 #endif
 459   bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }
 460
 461   // Please do not add your stuff randomly to the end here. If there is an
 462   // appropriate section, add it there. If not, there are some random functions
 463   // nearer to the top you can add it to.
 464
 465  protected:
 466   // RenderWidget overrides:
 467   void OnClose() override;
 468   void Close() override;
 469   void OnResize(const ViewMsg_Resize_Params& params) override;
 470   void DidInitiatePaint() override;
 471   void DidFlushPaint() override;
 472   gfx::Vector2d GetScrollOffset() override;
 473   void DidHandleKeyEvent() override;
 474   bool WillHandleMouseEvent(const blink::WebMouseEvent& event) override;
 475   bool WillHandleGestureEvent(const blink::WebGestureEvent& event) override;
 476   void DidHandleMouseEvent(const blink::WebMouseEvent& event) override;
 477   void DidHandleTouchEvent(const blink::WebTouchEvent& event) override;
 478   bool HasTouchEventHandlersAt(const gfx::Point& point) const override;
 479   void OnSetFocus(bool enable) override;
 480   void OnWasHidden() override;
 481   void OnWasShown(bool needs_repainting,
 482                   const ui::LatencyInfo& latency_info) override;
 483   GURL GetURLForGraphicsContext3D() override;
 484   void OnImeSetComposition(
 485       const base::string16& text,
 486       const std::vector<blink::WebCompositionUnderline>& underlines,
 487       int selection_start,
 488       int selection_end) override;
 489   void OnImeConfirmComposition(const base::string16& text,
 490                                const gfx::Range& replacement_range,
 491                                bool keep_selection) override;
 492   void SetDeviceScaleFactor(float device_scale_factor) override;
 493   bool SetDeviceColorProfile(const std::vector<char>& color_profile) override;
 494   void OnOrientationChange() override;
 495   ui::TextInputType GetTextInputType() override;
 496   void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) override;
 497   void FocusChangeComplete() override;
 498   void GetCompositionCharacterBounds(
 499       std::vector<gfx::Rect>* character_bounds) override;
 500   void GetCompositionRange(gfx::Range* range) override;
 501   bool CanComposeInline() override;
 502   void DidCommitCompositorFrame() override;
 503   void DidCompletePageScaleAnimation() override;
 504
 505  protected:
 506   explicit RenderViewImpl(const ViewMsg_New_Params& params);
 507
 508   void Initialize(const ViewMsg_New_Params& params,
 509                   CompositorDependencies* compositor_deps,
 510                   bool was_created_by_renderer);
 511   void SetScreenMetricsEmulationParameters(float device_scale_factor,
 512                                            const gfx::Point& root_layer_offset,
 513                                            float root_layer_scale) override;
 514
 515   // Do not delete directly.  This class is reference counted.
 516   virtual ~RenderViewImpl();
 517
 518  private:
 519   // For unit tests.
 520   friend class PepperDeviceTest;
 521   friend class RenderViewImplTest;
 522   friend class RenderViewTest;
 523   friend class RendererAccessibilityTest;
 524
 525   // TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
 526   // utility functions needed in both classes, while we move frame specific
 527   // code away from this class.
 528   friend class RenderFrameImpl;
 529
 530   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
 531   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 532                            DidFailProvisionalLoadWithErrorForError);
 533   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 534                            DidFailProvisionalLoadWithErrorForCancellation);
 535   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
 536   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
 537   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
 538   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
 539   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
 540   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeTypeChanged);
 541   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
 542   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
 543   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
 544   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 545                            SetEditableSelectionAndComposition);
 546   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
 547   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 548                            DontIgnoreBackAfterNavEntryLimit);
 549   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
 550   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 551                            GetCompositionCharacterBoundsTest);
 552   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
 553   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 554                            DecideNavigationPolicyHandlesAllTopLevel);
 555 #if defined(OS_MACOSX)
 556   FRIEND_TEST_ALL_PREFIXES(RenderViewTest, MacTestCmdUp);
 557 #endif
 558   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndOffset);
 559   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
 560   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
 561   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, BasicRenderFrame);
 562   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, TextInputTypeWithPepper);
 563   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 564                            MessageOrderInDidChangeSelection);
 565   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendCandidateWindowEvents);
 566   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
 567   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
 568
 569   typedef std::map<GURL, double> HostZoomLevels;
 570
 571   enum ErrorPageType {
 572     DNS_ERROR,
 573     HTTP_404,
 574     CONNECTION_ERROR,
 575   };
 576
 577   // Old WebFrameClient implementations ----------------------------------------
 578
 579   // RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
 580   // WebFrameClient. However, many implementations of WebFrameClient methods
 581   // still live here and are called from RenderFrameImpl. These implementations
 582   // are to be moved to RenderFrameImpl <http://crbug.com/361761>.
 583
 584   void didCreateDataSource(blink::WebLocalFrame* frame,
 585                            blink::WebDataSource* datasource);
 586   void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
 587   void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
 588   void didChangeScrollOffset(blink::WebLocalFrame* frame);
 589
 590   static bool IsReload(FrameMsg_Navigate_Type::Value navigation_type);
 591
 592   static Referrer GetReferrerFromRequest(
 593       blink::WebFrame* frame,
 594       const blink::WebURLRequest& request);
 595
 596   static WindowOpenDisposition NavigationPolicyToDisposition(
 597       blink::WebNavigationPolicy policy);
 598
 599   void UpdateSessionHistory(blink::WebFrame* frame);
 600   void SendUpdateState(HistoryEntry* entry);
 601
 602   // Sends a message and runs a nested message loop.
 603   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 604
 605   // IPC message handlers ------------------------------------------------------
 606   //
 607   // The documentation for these functions should be in
 608   // content/common/*_messages.h for the message that the function is handling.
 609   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 610   void OnMoveCaret(const gfx::Point& point);
 611   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 612   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
 613   void OnAllowBindings(int enabled_bindings_flags);
 614   void OnAllowScriptToClose(bool script_can_close);
 615   void OnCancelDownload(int32 download_id);
 616   void OnClearFocusedElement();
 617   void OnClosePage();
 618   void OnShowContextMenu(ui::MenuSourceType source_type,
 619                          const gfx::Point& location);
 620   void OnCopyImageAt(int x, int y);
 621   void OnSaveImageAt(int x, int y);
 622   void OnDeterminePageLanguage();
 623   void OnDisableScrollbarsForSmallWindows(
 624       const gfx::Size& disable_scrollbars_size_limit);
 625   void OnDragSourceEnded(const gfx::Point& client_point,
 626                          const gfx::Point& screen_point,
 627                          blink::WebDragOperation drag_operation);
 628   void OnDragSourceSystemDragEnded();
 629   void OnDragTargetDrop(const gfx::Point& client_pt,
 630                         const gfx::Point& screen_pt,
 631                         int key_modifiers);
 632   void OnDragTargetDragEnter(const DropData& drop_data,
 633                              const gfx::Point& client_pt,
 634                              const gfx::Point& screen_pt,
 635                              blink::WebDragOperationsMask operations_allowed,
 636                              int key_modifiers);
 637   void OnDragTargetDragLeave();
 638   void OnDragTargetDragOver(const gfx::Point& client_pt,
 639                             const gfx::Point& screen_pt,
 640                             blink::WebDragOperationsMask operations_allowed,
 641                             int key_modifiers);
 642   void OnEnablePreferredSizeChangedMode();
 643   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 644   void OnDisableAutoResize(const gfx::Size& new_size);
 645   void OnEnumerateDirectoryResponse(int id,
 646                                     const std::vector<base::FilePath>& paths);
 647   void OnFileChooserResponse(
 648       const std::vector<content::FileChooserFileInfo>& files);
 649   void OnFind(int request_id,
 650               const base::string16&,
 651               const blink::WebFindOptions&);
 652   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 653   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 654       const std::vector<GURL>& links,
 655       const std::vector<base::FilePath>& local_paths,
 656       const base::FilePath& local_directory_name);
 657   void OnMediaPlayerActionAt(const gfx::Point& location,
 658                              const blink::WebMediaPlayerAction& action);
 659   void OnPluginActionAt(const gfx::Point& location,
 660                         const blink::WebPluginAction& action);
 661   void OnMoveOrResizeStarted();
 662   void OnPostMessageEvent(const ViewMsg_PostMessage_Params& params);
 663   void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
 664   void OnResetPageEncodingToDefault();
 665   void OnSetActive(bool active);
 666   void OnSetBackgroundOpaque(bool opaque);
 667   void OnExitFullscreen();
 668   void OnSetHistoryOffsetAndLength(int history_offset, int history_length);
 669   void OnSetInitialFocus(bool reverse);
 670   void OnSetPageEncoding(const std::string& encoding_name);
 671   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
 672   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 673   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
 674   void OnSetZoomLevelForView(bool uses_temporary_zoom_level, double level);
 675   void OnStopFinding(StopFindAction action);
 676   void OnSuppressDialogsUntilSwapOut();
 677   void OnThemeChanged();
 678   void OnUpdateTargetURLAck();
 679   void OnUpdateWebPreferences(const WebPreferences& prefs);
 680   void OnZoom(PageZoom zoom);
 681   void OnEnableViewSourceMode();
 682   void OnWindowSnapshotCompleted(const int snapshot_id,
 683       const gfx::Size& size, const std::vector<unsigned char>& png);
 684   void OnForceRedraw(int request_id);
 685   void OnSelectWordAroundCaret();
 686 #if defined(OS_ANDROID)
 687   void OnActivateNearestFindResult(int request_id, float x, float y);
 688   void OnFindMatchRects(int current_version);
 689   void OnUndoScrollFocusedEditableNodeIntoRect();
 690   void OnUpdateTopControlsState(bool enable_hiding,
 691                                 bool enable_showing,
 692                                 bool animate);
 693   void OnExtractSmartClipData(const gfx::Rect& rect);
 694 #elif defined(OS_MACOSX)
 695   void OnGetRenderedText();
 696   void OnPluginImeCompositionCompleted(const base::string16& text,
 697                                        int plugin_id);
 698   void OnSetInLiveResize(bool in_live_resize);
 699   void OnSetWindowVisibility(bool visible);
 700   void OnWindowFrameChanged(const gfx::Rect& window_frame,
 701                             const gfx::Rect& view_frame);
 702 #endif
 703
 704   // Adding a new message handler? Please add it in alphabetical order above
 705   // and put it in the same position in the .cc file.
 706
 707   // Misc private functions ----------------------------------------------------
 708   // Check whether the preferred size has changed.
 709   void CheckPreferredSize();
 710
 711   // Gets the currently focused element, if any.
 712   blink::WebElement GetFocusedElement() const;
 713
 714   // Called to get the WebPlugin to handle find requests in the document.
 715   // Returns NULL if there is no such WebPlugin.
 716   blink::WebPlugin* GetWebPluginForFind();
 717
 718   // If we initiated a navigation, this function will populate |document_state|
 719   // with the navigation information saved in OnNavigate().
 720   void PopulateDocumentStateFromPending(DocumentState* document_state);
 721
 722   // Returns a new NavigationState populated with the navigation information
 723   // saved in OnNavigate().
 724   NavigationState* CreateNavigationStateFromPending();
 725
 726 #if defined(OS_ANDROID)
 727   // Launch an Android content intent with the given URL.
 728   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
 729 #endif
 730
 731   // Sends a reply to the current find operation handling if it was a
 732   // synchronous find request.
 733   void SendFindReply(int request_id,
 734                      int match_count,
 735                      int ordinal,
 736                      const blink::WebRect& selection_rect,
 737                      bool final_status_update);
 738
 739   // Starts nav_state_sync_timer_ if it isn't already running.
 740   void StartNavStateSyncTimerIfNecessary();
 741
 742 #if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
 743   void UpdateFontRenderingFromRendererPrefs();
 744 #else
 745   void UpdateFontRenderingFromRendererPrefs() {}
 746 #endif
 747
 748   // Update the target url and tell the browser that the target URL has changed.
 749   // If |url| is empty, show |fallback_url|.
 750   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
 751
 752   // Tells the browser what the new list of favicons for the webpage is.
 753   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
 754
 755   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
 756   // the browser.
 757   void DidStopLoadingIcons();
 758
 759   // Coordinate conversion -----------------------------------------------------
 760
 761   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
 762
 763   // RenderFrameImpl accessible state ------------------------------------------
 764   // The following section is the set of methods that RenderFrameImpl needs
 765   // to access RenderViewImpl state. The set of state variables are page-level
 766   // specific, so they don't belong in RenderFrameImpl and should remain in
 767   // this object.
 768   ObserverList<RenderViewObserver>& observers() {
 769     return observers_;
 770   }
 771
 772   // TODO(nasko): Remove this method when we move to frame proxy objects, since
 773   // the concept of swapped out will be eliminated.
 774   void set_is_swapped_out(bool swapped_out) {
 775     is_swapped_out_ = swapped_out;
 776   }
 777
 778   NavigationGesture navigation_gesture() {
 779     return navigation_gesture_;
 780   }
 781   void set_navigation_gesture(NavigationGesture gesture) {
 782     navigation_gesture_ = gesture;
 783   }
 784
 785   // ---------------------------------------------------------------------------
 786   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
 787   // it in the same order in the .cc file as it was in the header.
 788   // ---------------------------------------------------------------------------
 789
 790   // Settings ------------------------------------------------------------------
 791
 792   WebPreferences webkit_preferences_;
 793   RendererPreferences renderer_preferences_;
 794
 795   HostZoomLevels host_zoom_levels_;
 796
 797   // Whether content state (such as form state, scroll position and page
 798   // contents) should be sent to the browser immediately. This is normally
 799   // false, but set to true by some tests.
 800   bool send_content_state_immediately_;
 801
 802   // Bitwise-ORed set of extra bindings that have been enabled.  See
 803   // BindingsPolicy for details.
 804   int enabled_bindings_;
 805
 806   // If true, we send IPC messages when |preferred_size_| changes.
 807   bool send_preferred_size_changes_;
 808
 809   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
 810   // scroll bars on windows smaller than this size.  Used for windows that the
 811   // browser resizes to the size of the content, such as browser action popups.
 812   // If a render view is set to the minimum size of its content, webkit may add
 813   // scroll bars.  This makes sense for fixed sized windows, but it does not
 814   // make sense when the size of the view was chosen to fit the content.
 815   // This setting ensures that no scroll bars are drawn.  The size limit exists
 816   // because if the view grows beyond a size known to the browser, scroll bars
 817   // should be drawn.
 818   gfx::Size disable_scrollbars_size_limit_;
 819
 820   // Loading state -------------------------------------------------------------
 821
 822   // The gesture that initiated the current navigation.
 823   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 824   NavigationGesture navigation_gesture_;
 825
 826   // Used for popups.
 827   bool opened_by_user_gesture_;
 828
 829   // Whether this RenderView was created by a frame that was suppressing its
 830   // opener. If so, we may want to load pages in a separate process.  See
 831   // decidePolicyForNavigation for details.
 832   bool opener_suppressed_;
 833
 834   // Whether we must stop creating nested message loops for modal dialogs until
 835   // OnSwapOut is called.  This is necessary because modal dialogs have a
 836   // PageGroupLoadDeferrer on the stack that interferes with swapping out.
 837   bool suppress_dialogs_until_swap_out_;
 838
 839   // Holds state pertaining to a navigation that we initiated.  This is held by
 840   // the WebDataSource::ExtraData attribute.  We use pending_navigation_state_
 841   // as a temporary holder for the state until the WebDataSource corresponding
 842   // to the new navigation is created.  See DidCreateDataSource.
 843   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 844   scoped_ptr<FrameMsg_Navigate_Params> pending_navigation_params_;
 845
 846   // Timer used to delay the updating of nav state (see SyncNavigationState).
 847   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
 848
 849   // Page IDs ------------------------------------------------------------------
 850   // See documentation in RenderView.
 851   int32 page_id_;
 852
 853   // The next available page ID to use for this RenderView.  These IDs are
 854   // specific to a given RenderView and the frames within it.
 855   int32 next_page_id_;
 856
 857   // The offset of the current item in the history list.
 858   int history_list_offset_;
 859
 860   // The RenderView's current impression of the history length.  This includes
 861   // any items that have committed in this process, but because of cross-process
 862   // navigations, the history may have some entries that were committed in other
 863   // processes.  We won't know about them until the next navigation in this
 864   // process.
 865   int history_list_length_;
 866
 867   // Counter to track how many frames have sent start notifications but not stop
 868   // notifications. TODO(avi): Remove this once DidStartLoading/DidStopLoading
 869   // are gone.
 870   int frames_in_progress_;
 871
 872   // UI state ------------------------------------------------------------------
 873
 874   // The state of our target_url transmissions. When we receive a request to
 875   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
 876   // comes back - if a new request comes in before the ACK, we store the new
 877   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
 878   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
 879   // revert to TARGET_INFLIGHT.
 880   //
 881   // We don't need a queue of URLs to send, as only the latest is useful.
 882   enum {
 883     TARGET_NONE,
 884     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
 885     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
 886   } target_url_status_;
 887
 888   // The URL we show the user in the status bar. We use this to determine if we
 889   // want to send a new one (we do not need to send duplicates). It will be
 890   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
 891   // updated last.
 892   GURL target_url_;
 893
 894   // The URL the user's mouse is hovering over.
 895   GURL mouse_over_url_;
 896
 897   // The URL that has keyboard focus.
 898   GURL focus_url_;
 899
 900   // The next target URL we want to send to the browser.
 901   GURL pending_target_url_;
 902
 903   // Indicates whether this view overrides url-based zoom settings.
 904   bool uses_temporary_zoom_level_;
 905
 906 #if defined(OS_ANDROID)
 907   // Cache the old top controls state constraints. Used when updating
 908   // current value only without altering the constraints.
 909   TopControlsState top_controls_constraints_;
 910 #endif
 911
 912   // View ----------------------------------------------------------------------
 913
 914   // Cache the preferred size of the page in order to prevent sending the IPC
 915   // when layout() recomputes but doesn't actually change sizes.
 916   gfx::Size preferred_size_;
 917
 918   // Used to delay determining the preferred size (to avoid intermediate
 919   // states for the sizes).
 920   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
 921
 922   // Bookkeeping to suppress redundant scroll and focus requests for an already
 923   // scrolled and focused editable node.
 924   bool has_scrolled_focused_editable_node_into_rect_;
 925   gfx::Rect rect_for_scrolled_focused_editable_node_;
 926
 927   // Helper objects ------------------------------------------------------------
 928
 929   scoped_ptr<RenderFrameImpl> main_render_frame_;
 930
 931   // The next group of objects all implement RenderViewObserver, so are deleted
 932   // along with the RenderView automatically.  This is why we just store
 933   // weak references.
 934
 935   // The speech recognition dispatcher attached to this view, lazily
 936   // initialized.
 937   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
 938
 939   DevToolsAgent* devtools_agent_;
 940
 941   // Mouse Lock dispatcher attached to this view.
 942   MouseLockDispatcher* mouse_lock_dispatcher_;
 943
 944   scoped_ptr<HistoryController> history_controller_;
 945
 946 #if defined(OS_ANDROID)
 947   // Android Specific ---------------------------------------------------------
 948
 949   // Expected id of the next content intent launched. Used to prevent scheduled
 950   // intents to be launched if aborted.
 951   size_t expected_content_intent_id_;
 952
 953   // List of click-based content detectors.
 954   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
 955   ContentDetectorList content_detectors_;
 956
 957   // A date/time picker object for date and time related input elements.
 958   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
 959 #endif
 960
 961   // Plugins -------------------------------------------------------------------
 962
 963   // All the currently active plugin delegates for this RenderView; kept so
 964   // that we can enumerate them to send updates about things like window
 965   // location or tab focus and visibily. These are non-owning references.
 966   std::set<WebPluginDelegateProxy*> plugin_delegates_;
 967
 968 #if defined(OS_WIN)
 969   // The ID of the focused NPAPI plug-in.
 970   int focused_plugin_id_;
 971 #endif
 972
 973 #if defined(ENABLE_PLUGINS)
 974   PepperPluginInstanceImpl* plugin_find_handler_;
 975
 976   typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
 977   PepperPluginSet active_pepper_instances_;
 978
 979   // TODO(jam): these belong on RenderFrame, once the browser knows which frame
 980   // is focused and sends the IPCs which use these to the correct frame. Until
 981   // then, we must store these on RenderView as that's the one place that knows
 982   // about all the RenderFrames for a page.
 983
 984   // Whether or not the focus is on a PPAPI plugin
 985   PepperPluginInstanceImpl* focused_pepper_plugin_;
 986
 987   // The plugin instance that received the last mouse event. It is set to NULL
 988   // if the last mouse event went to elements other than Pepper plugins.
 989   // |pepper_last_mouse_event_target_| is not owned by this class. We depend on
 990   // the RenderFrameImpl to NULL it out when it destructs.
 991   PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
 992 #endif
 993
 994   // Misc ----------------------------------------------------------------------
 995
 996   // The current and pending file chooser completion objects. If the queue is
 997   // nonempty, the first item represents the currently running file chooser
 998   // callback, and the remaining elements are the other file chooser completion
 999   // still waiting to be run (in order).
1000   struct PendingFileChooser;
1001   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
1002
1003   // The current directory enumeration callback
1004   std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
1005   int enumeration_completion_id_;
1006
1007   // The SessionStorage namespace that we're assigned to has an ID, and that ID
1008   // is passed to us upon creation.  WebKit asks for this ID upon first use and
1009   // uses it whenever asking the browser process to allocate new storage areas.
1010   int64 session_storage_namespace_id_;
1011
1012   // Stores edit commands associated to the next key event.
1013   // Shall be cleared as soon as the next key event is processed.
1014   EditCommands edit_commands_;
1015
1016   // All the registered observers.  We expect this list to be small, so vector
1017   // is fine.
1018   ObserverList<RenderViewObserver> observers_;
1019
1020   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
1021   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
1022
1023   // State associated with the GetWindowSnapshot function.
1024   int next_snapshot_id_;
1025   typedef std::map<int, WindowSnapshotCallback> PendingSnapshotMap;
1026   PendingSnapshotMap pending_snapshots_;
1027
1028   // This field stores drag/drop related info for the event that is currently
1029   // being handled. If the current event results in starting a drag/drop
1030   // session, this info is sent to the browser along with other drag/drop info.
1031   DragEventSourceInfo possible_drag_event_info_;
1032
1033   // NOTE: stats_collection_observer_ should be the last members because their
1034   // constructors call the AddObservers method of RenderViewImpl.
1035   scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
1036
1037   typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
1038   BitmapMap disambiguation_bitmaps_;
1039
1040   // ---------------------------------------------------------------------------
1041   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1042   // sections rather than throwing it randomly at the end. If you're adding a
1043   // bunch of stuff, you should probably create a helper class and put your
1044   // data and methods on that to avoid bloating RenderView more.  You can
1045   // use the Observer interface to filter IPC messages and receive frame change
1046   // notifications.
1047   // ---------------------------------------------------------------------------
1048
1049   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1050 };
1051
1052 }  // namespace content
1053
1054 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_