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_Resize_Params;
  80 struct ViewMsg_StopFinding_Params;
  81
  82 namespace base {
  83 class CommandLine;
  84 }
  85
  86 namespace blink {
  87 class WebApplicationCacheHost;
  88 class WebApplicationCacheHostClient;
  89 class WebDOMMessageEvent;
  90 class WebDataSource;
  91 class WebDateTimeChooserCompletion;
  92 class WebDragData;
  93 class WebGestureEvent;
  94 class WebIconURL;
  95 class WebImage;
  96 class WebPeerConnection00Handler;
  97 class WebPeerConnection00HandlerClient;
  98 class WebMouseEvent;
  99 class WebPeerConnectionHandler;
 100 class WebPeerConnectionHandlerClient;
 101 class WebSpeechRecognizer;
 102 class WebStorageNamespace;
 103 class WebTouchEvent;
 104 class WebURLRequest;
 105 struct WebActiveWheelFlingParameters;
 106 struct WebDateTimeChooserParams;
 107 struct WebFileChooserParams;
 108 struct WebFindOptions;
 109 struct WebMediaPlayerAction;
 110 struct WebPluginAction;
 111 struct WebPoint;
 112 struct WebWindowFeatures;
 113
 114 #if defined(OS_ANDROID)
 115 class WebHitTestResult;
 116 #endif
 117 }  // namespace blink
 118
 119 namespace content {
 120
 121 class HistoryController;
 122 class HistoryEntry;
 123 class MouseLockDispatcher;
 124 class PageState;
 125 class PepperPluginInstanceImpl;
 126 class RenderViewImplTest;
 127 class RenderViewObserver;
 128 class RenderViewTest;
 129 class RendererDateTimePicker;
 130 class RendererWebColorChooserImpl;
 131 class SpeechRecognitionDispatcher;
 132 class WebPluginDelegateProxy;
 133 struct DropData;
 134 struct FaviconURL;
 135 struct FileChooserParams;
 136 struct FileChooserFileInfo;
 137 struct RenderViewImplParams;
 138
 139 #if defined(OS_ANDROID)
 140 class WebMediaPlayerProxyAndroid;
 141 #endif
 142
 143 //
 144 // RenderView is an object that manages a WebView object, and provides a
 145 // communication interface with an embedding application process.
 146 //
 147 // DEPRECATED: RenderViewImpl is being removed as part of the SiteIsolation
 148 // project. New code should be added to RenderFrameImpl instead.
 149 //
 150 // For context, please see https://crbug.com/467770 and
 151 // http://www.chromium.org/developers/design-documents/site-isolation.
 152 class CONTENT_EXPORT RenderViewImpl
 153     : public RenderWidget,
 154       NON_EXPORTED_BASE(public blink::WebViewClient),
 155       NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
 156       public RenderView,
 157       public base::SupportsWeakPtr<RenderViewImpl> {
 158  public:
 159   // Creates a new RenderView. |opener_id| is the routing ID of the RenderView
 160   // responsible for creating this RenderView. Note that if the original opener
 161   // has been closed, |window_was_created_with_opener| will be true and
 162   // |opener_id| will be MSG_ROUTING_NONE. When |swapped_out| is true, the
 163   // |proxy_routing_id| is specified, so a RenderFrameProxy can be created for
 164   // this RenderView's main RenderFrame.
 165   static RenderViewImpl* Create(const ViewMsg_New_Params& params,
 166                                 CompositorDependencies* compositor_deps,
 167                                 bool was_created_by_renderer);
 168
 169   // Used by content_layouttest_support to hook into the creation of
 170   // RenderViewImpls.
 171   static void InstallCreateHook(
 172       RenderViewImpl* (*create_render_view_impl)(const ViewMsg_New_Params&));
 173
 174   // Returns the RenderViewImpl containing the given WebView.
 175   static RenderViewImpl* FromWebView(blink::WebView* webview);
 176
 177   // Returns the RenderViewImpl for the given routing ID.
 178   static RenderViewImpl* FromRoutingID(int routing_id);
 179
 180   // May return NULL when the view is closing.
 181   blink::WebView* webview() const;
 182
 183   const WebPreferences& webkit_preferences() const {
 184     return webkit_preferences_;
 185   }
 186
 187   const RendererPreferences& renderer_preferences() const {
 188     return renderer_preferences_;
 189   }
 190
 191   void set_send_content_state_immediately(bool value) {
 192     send_content_state_immediately_ = value;
 193   }
 194
 195   MouseLockDispatcher* mouse_lock_dispatcher() {
 196     return mouse_lock_dispatcher_;
 197   }
 198
 199   HistoryController* history_controller() {
 200     return history_controller_.get();
 201   }
 202
 203   // Functions to add and remove observers for this object.
 204   void AddObserver(RenderViewObserver* observer);
 205   void RemoveObserver(RenderViewObserver* observer);
 206
 207   // Returns the StatsCollectionObserver associated with this view, or NULL
 208   // if one wasn't created;
 209   StatsCollectionObserver* GetStatsCollectionObserver() {
 210     return stats_collection_observer_.get();
 211   }
 212
 213   // Adds the given file chooser request to the file_chooser_completion_ queue
 214   // (see that var for more) and requests the chooser be displayed if there are
 215   // no other waiting items in the queue.
 216   //
 217   // Returns true if the chooser was successfully scheduled. False means we
 218   // didn't schedule anything.
 219   bool ScheduleFileChooser(const FileChooserParams& params,
 220                            blink::WebFileChooserCompletion* completion);
 221
 222 #if defined(OS_ANDROID)
 223   void DismissDateTimeDialog();
 224 #endif
 225
 226   bool is_loading() const { return frames_in_progress_ != 0; }
 227
 228   void FrameDidStartLoading(blink::WebFrame* frame);
 229   void FrameDidStopLoading(blink::WebFrame* frame);
 230
 231   // Plugin-related functions --------------------------------------------------
 232
 233 #if defined(ENABLE_PLUGINS)
 234   // Get/set the plugin which will be used as to handle document find requests.
 235   void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
 236     plugin_find_handler_ = plugin;
 237   }
 238   PepperPluginInstanceImpl* plugin_find_handler() {
 239     return plugin_find_handler_;
 240   }
 241
 242   PepperPluginInstanceImpl* focused_pepper_plugin() {
 243     return focused_pepper_plugin_;
 244   }
 245   PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
 246     return pepper_last_mouse_event_target_;
 247   }
 248   void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
 249     pepper_last_mouse_event_target_ = plugin;
 250   }
 251
 252 #if defined(OS_MACOSX) || defined(OS_WIN)
 253   // Informs the render view that the given plugin has gained or lost focus.
 254   void PluginFocusChanged(bool focused, int plugin_id);
 255 #endif
 256
 257 #if defined(OS_MACOSX)
 258   // Starts plugin IME.
 259   void StartPluginIme();
 260 #endif
 261
 262   // Indicates that the given instance has been created.
 263   void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
 264
 265   // Indicates that the given instance is being destroyed. This is called from
 266   // the destructor, so it's important that the instance is not dereferenced
 267   // from this call.
 268   void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
 269
 270   // Notification that the given plugin is focused or unfocused.
 271   void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
 272
 273   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 274   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 275 #endif  // ENABLE_PLUGINS
 276
 277   void TransferActiveWheelFlingAnimation(
 278       const blink::WebActiveWheelFlingParameters& params);
 279
 280   // Returns true if the focused element is editable text from the perspective
 281   // of IME support (also used for on-screen keyboard). Works correctly inside
 282   // supported PPAPI plugins.
 283   bool HasIMETextFocus();
 284
 285   // Dispatches the current navigation state to the browser. Called on a
 286   // periodic timer so we don't send too many messages.
 287   void SyncNavigationState();
 288
 289   // Returns the length of the session history of this RenderView. Note that
 290   // this only coincides with the actual length of the session history if this
 291   // RenderView is the currently active RenderView of a WebContents.
 292   unsigned GetLocalSessionHistoryLengthForTesting() const;
 293
 294   // Invokes OnSetFocus and marks the widget as active depending on the value
 295   // of |enable|. This is used for layout tests that need to control the focus
 296   // synchronously from the renderer.
 297   void SetFocusAndActivateForTesting(bool enable);
 298
 299   // Change the device scale factor and force the compositor to resize.
 300   void SetDeviceScaleFactorForTesting(float factor);
 301
 302   // Change the device ICC color profile while running a layout test.
 303   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
 304   void ResetDeviceColorProfileForTesting() override;
 305
 306   // Used to force the size of a window when running layout tests.
 307   void ForceResizeForTesting(const gfx::Size& new_size);
 308
 309   void UseSynchronousResizeModeForTesting(bool enable);
 310
 311   // Control autoresize mode.
 312   void EnableAutoResizeForTesting(const gfx::Size& min_size,
 313                                   const gfx::Size& max_size);
 314   void DisableAutoResizeForTesting(const gfx::Size& new_size);
 315
 316   // IPC::Listener implementation ----------------------------------------------
 317
 318   bool OnMessageReceived(const IPC::Message& msg) override;
 319
 320   // blink::WebWidgetClient implementation ------------------------------------
 321
 322   // Most methods are handled by RenderWidget.
 323   virtual void didFocus();
 324   virtual void didBlur();
 325   virtual void show(blink::WebNavigationPolicy policy);
 326   virtual bool requestPointerLock();
 327   virtual void requestPointerUnlock();
 328   virtual bool isPointerLocked();
 329   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
 330                                      bool event_cancelled) override;
 331   virtual void initializeLayerTreeView() override;
 332
 333   // blink::WebViewClient implementation --------------------------------------
 334
 335   virtual blink::WebView* createView(blink::WebLocalFrame* creator,
 336                                      const blink::WebURLRequest& request,
 337                                      const blink::WebWindowFeatures& features,
 338                                      const blink::WebString& frame_name,
 339                                      blink::WebNavigationPolicy policy,
 340                                      bool suppress_opener);
 341   virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
 342   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 343   virtual void printPage(blink::WebLocalFrame* frame);
 344   virtual bool enumerateChosenDirectory(
 345       const blink::WebString& path,
 346       blink::WebFileChooserCompletion* chooser_completion);
 347   virtual void saveImageFromDataURL(const blink::WebString& data_url);
 348   virtual void didCancelCompositionOnSelectionChange();
 349   virtual bool handleCurrentKeyboardEvent();
 350   virtual bool runFileChooser(
 351       const blink::WebFileChooserParams& params,
 352       blink::WebFileChooserCompletion* chooser_completion);
 353   void SetValidationMessageDirection(base::string16* main_text,
 354                                      blink::WebTextDirection main_text_hint,
 355                                      base::string16* sub_text,
 356                                      blink::WebTextDirection sub_text_hint);
 357   virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
 358                                      const blink::WebString& main_text,
 359                                      blink::WebTextDirection main_text_hint,
 360                                      const blink::WebString& sub_text,
 361                                      blink::WebTextDirection hint) override;
 362   virtual void hideValidationMessage() override;
 363   virtual void moveValidationMessage(
 364       const blink::WebRect& anchor_in_root_view) override;
 365   virtual void setStatusText(const blink::WebString& text);
 366   virtual void setMouseOverURL(const blink::WebURL& url);
 367   virtual void setKeyboardFocusURL(const blink::WebURL& url);
 368   virtual void startDragging(blink::WebLocalFrame* frame,
 369                              const blink::WebDragData& data,
 370                              blink::WebDragOperationsMask mask,
 371                              const blink::WebImage& image,
 372                              const blink::WebPoint& imageOffset);
 373   virtual bool acceptsLoadDrops();
 374   virtual void focusNext();
 375   virtual void focusPrevious();
 376   virtual void focusedNodeChanged(const blink::WebNode& fromNode,
 377                                   const blink::WebNode& toNode);
 378   virtual void didUpdateLayout();
 379 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 380   virtual bool didTapMultipleTargets(
 381       const blink::WebSize& inner_viewport_offset,
 382       const blink::WebRect& touch_rect,
 383       const blink::WebVector<blink::WebRect>& target_rects);
 384 #endif
 385   virtual blink::WebString acceptLanguages();
 386   virtual void navigateBackForwardSoon(int offset);
 387   virtual int historyBackListCount();
 388   virtual int historyForwardListCount();
 389   virtual blink::WebSpeechRecognizer* speechRecognizer();
 390   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 391   virtual void zoomLevelChanged();
 392   virtual void pageScaleFactorChanged();
 393   virtual double zoomLevelToZoomFactor(double zoom_level) const;
 394   virtual double zoomFactorToZoomLevel(double factor) const;
 395   virtual void registerProtocolHandler(const blink::WebString& scheme,
 396                                        const blink::WebURL& url,
 397                                        const blink::WebString& title);
 398   virtual void unregisterProtocolHandler(const blink::WebString& scheme,
 399                                          const blink::WebURL& url);
 400   virtual blink::WebPageVisibilityState visibilityState() const;
 401   virtual void draggableRegionsChanged();
 402
 403 #if defined(OS_ANDROID)
 404   virtual void scheduleContentIntent(const blink::WebURL& intent);
 405   virtual void cancelScheduledContentIntents();
 406   virtual blink::WebContentDetectionResult detectContentAround(
 407       const blink::WebHitTestResult& touch_hit);
 408
 409   // Only used on Android since all other platforms implement
 410   // date and time input fields using MULTIPLE_FIELDS_UI
 411   virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
 412                                    blink::WebDateTimeChooserCompletion*);
 413   virtual void didScrollWithKeyboard(const blink::WebSize& delta);
 414 #endif
 415
 416   // blink::WebPageSerializerClient implementation ----------------------------
 417
 418   virtual void didSerializeDataForFrame(
 419       const blink::WebURL& frame_url,
 420       const blink::WebCString& data,
 421       PageSerializationStatus status) override;
 422
 423   // RenderView implementation -------------------------------------------------
 424
 425   bool Send(IPC::Message* message) override;
 426   RenderFrameImpl* GetMainRenderFrame() override;
 427   int GetRoutingID() const override;
 428   gfx::Size GetSize() const override;
 429   WebPreferences& GetWebkitPreferences() override;
 430   void SetWebkitPreferences(const WebPreferences& preferences) override;
 431   blink::WebView* GetWebView() override;
 432   bool IsEditableNode(const blink::WebNode& node) const override;
 433   bool ShouldDisplayScrollbars(int width, int height) const override;
 434   int GetEnabledBindings() const override;
 435   bool GetContentStateImmediately() const override;
 436   blink::WebPageVisibilityState GetVisibilityState() const override;
 437   void DidStartLoading() override;
 438   void DidStopLoading() override;
 439   void Repaint(const gfx::Size& size) override;
 440   void SetEditCommandForNextKeyEvent(const std::string& name,
 441                                      const std::string& value) override;
 442   void ClearEditCommands() override;
 443   SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const override;
 444   const std::string& GetAcceptLanguages() const override;
 445 #if defined(OS_ANDROID)
 446   void UpdateTopControlsState(TopControlsState constraints,
 447                               TopControlsState current,
 448                               bool animate) override;
 449 #endif
 450   bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }
 451
 452   // Please do not add your stuff randomly to the end here. If there is an
 453   // appropriate section, add it there. If not, there are some random functions
 454   // nearer to the top you can add it to.
 455
 456  protected:
 457   // RenderWidget overrides:
 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   bool HasTouchEventHandlersAt(const gfx::Point& point) const override;
 468   void OnSetFocus(bool enable) override;
 469   void OnWasHidden() override;
 470   void OnWasShown(bool needs_repainting,
 471                   const ui::LatencyInfo& latency_info) override;
 472   GURL GetURLForGraphicsContext3D() override;
 473   void OnImeSetComposition(
 474       const base::string16& text,
 475       const std::vector<blink::WebCompositionUnderline>& underlines,
 476       int selection_start,
 477       int selection_end) override;
 478   void OnImeConfirmComposition(const base::string16& text,
 479                                const gfx::Range& replacement_range,
 480                                bool keep_selection) override;
 481   void SetDeviceScaleFactor(float device_scale_factor) override;
 482   bool SetDeviceColorProfile(const std::vector<char>& color_profile) override;
 483   void OnOrientationChange() override;
 484   ui::TextInputType GetTextInputType() override;
 485   void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) override;
 486   void FocusChangeComplete() override;
 487   void GetCompositionCharacterBounds(
 488       std::vector<gfx::Rect>* character_bounds) override;
 489   void GetCompositionRange(gfx::Range* range) override;
 490   bool CanComposeInline() override;
 491   void DidCommitCompositorFrame() override;
 492   void DidCompletePageScaleAnimation() override;
 493
 494  protected:
 495   explicit RenderViewImpl(const ViewMsg_New_Params& params);
 496
 497   void Initialize(const ViewMsg_New_Params& params,
 498                   CompositorDependencies* compositor_deps,
 499                   bool was_created_by_renderer);
 500   void SetScreenMetricsEmulationParameters(
 501       bool enabled,
 502       const blink::WebDeviceEmulationParams& params) override;
 503
 504   // Do not delete directly.  This class is reference counted.
 505   virtual ~RenderViewImpl();
 506
 507  private:
 508   // For unit tests.
 509   friend class DevToolsAgentTest;
 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(RenderViewImplTest, RenderFrameClearedAfterClose);
 559   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
 560   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
 561
 562   typedef std::map<GURL, double> HostZoomLevels;
 563
 564   enum ErrorPageType {
 565     DNS_ERROR,
 566     HTTP_404,
 567     CONNECTION_ERROR,
 568   };
 569
 570   // Old WebFrameClient implementations ----------------------------------------
 571
 572   // RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
 573   // WebFrameClient. However, many implementations of WebFrameClient methods
 574   // still live here and are called from RenderFrameImpl. These implementations
 575   // are to be moved to RenderFrameImpl <http://crbug.com/361761>.
 576
 577   void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
 578   void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
 579   void didChangeScrollOffset(blink::WebLocalFrame* frame);
 580
 581   static Referrer GetReferrerFromRequest(
 582       blink::WebFrame* frame,
 583       const blink::WebURLRequest& request);
 584
 585   static WindowOpenDisposition NavigationPolicyToDisposition(
 586       blink::WebNavigationPolicy policy);
 587
 588   void UpdateSessionHistory(blink::WebFrame* frame);
 589   void SendUpdateState(HistoryEntry* entry);
 590
 591   // Sends a message and runs a nested message loop.
 592   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 593
 594   // IPC message handlers ------------------------------------------------------
 595   //
 596   // The documentation for these functions should be in
 597   // content/common/*_messages.h for the message that the function is handling.
 598   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 599   void OnMoveCaret(const gfx::Point& point);
 600   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 601   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
 602   void OnAllowBindings(int enabled_bindings_flags);
 603   void OnAllowScriptToClose(bool script_can_close);
 604   void OnCancelDownload(int32 download_id);
 605   void OnClearFocusedElement();
 606   void OnClosePage();
 607   void OnClose();
 608
 609   void OnShowContextMenu(ui::MenuSourceType source_type,
 610                          const gfx::Point& location);
 611   void OnCopyImageAt(int x, int y);
 612   void OnSaveImageAt(int x, int y);
 613   void OnDeterminePageLanguage();
 614   void OnDisableScrollbarsForSmallWindows(
 615       const gfx::Size& disable_scrollbars_size_limit);
 616   void OnDragSourceEnded(const gfx::Point& client_point,
 617                          const gfx::Point& screen_point,
 618                          blink::WebDragOperation drag_operation);
 619   void OnDragSourceSystemDragEnded();
 620   void OnDragTargetDrop(const gfx::Point& client_pt,
 621                         const gfx::Point& screen_pt,
 622                         int key_modifiers);
 623   void OnDragTargetDragEnter(const DropData& drop_data,
 624                              const gfx::Point& client_pt,
 625                              const gfx::Point& screen_pt,
 626                              blink::WebDragOperationsMask operations_allowed,
 627                              int key_modifiers);
 628   void OnDragTargetDragLeave();
 629   void OnDragTargetDragOver(const gfx::Point& client_pt,
 630                             const gfx::Point& screen_pt,
 631                             blink::WebDragOperationsMask operations_allowed,
 632                             int key_modifiers);
 633   void OnEnablePreferredSizeChangedMode();
 634   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 635   void OnDisableAutoResize(const gfx::Size& new_size);
 636   void OnEnumerateDirectoryResponse(int id,
 637                                     const std::vector<base::FilePath>& paths);
 638   void OnFileChooserResponse(
 639       const std::vector<content::FileChooserFileInfo>& files);
 640   void OnFind(int request_id,
 641               const base::string16&,
 642               const blink::WebFindOptions&);
 643   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 644   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 645       const std::vector<GURL>& links,
 646       const std::vector<base::FilePath>& local_paths,
 647       const base::FilePath& local_directory_name);
 648   void OnMediaPlayerActionAt(const gfx::Point& location,
 649                              const blink::WebMediaPlayerAction& action);
 650   void OnPluginActionAt(const gfx::Point& location,
 651                         const blink::WebPluginAction& action);
 652   void OnMoveOrResizeStarted();
 653   void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
 654   void OnResetPageEncodingToDefault();
 655   void OnSetActive(bool active);
 656   void OnSetBackgroundOpaque(bool opaque);
 657   void OnExitFullscreen();
 658   void OnSetHistoryOffsetAndLength(int history_offset, int history_length);
 659   void OnSetInitialFocus(bool reverse);
 660   void OnSetPageEncoding(const std::string& encoding_name);
 661   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
 662   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 663   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
 664   void OnSetZoomLevelForView(bool uses_temporary_zoom_level, double level);
 665   void OnStopFinding(StopFindAction action);
 666   void OnSuppressDialogsUntilSwapOut();
 667   void OnThemeChanged();
 668   void OnUpdateTargetURLAck();
 669   void OnUpdateWebPreferences(const WebPreferences& prefs);
 670   void OnResetPageScale();
 671   void OnZoom(PageZoom zoom);
 672   void OnEnableViewSourceMode();
 673   void OnForceRedraw(int request_id);
 674   void OnSelectWordAroundCaret();
 675 #if defined(OS_ANDROID)
 676   void OnActivateNearestFindResult(int request_id, float x, float y);
 677   void OnFindMatchRects(int current_version);
 678   void OnUndoScrollFocusedEditableNodeIntoRect();
 679   void OnUpdateTopControlsState(bool enable_hiding,
 680                                 bool enable_showing,
 681                                 bool animate);
 682   void OnExtractSmartClipData(const gfx::Rect& rect);
 683 #elif defined(OS_MACOSX)
 684   void OnGetRenderedText();
 685   void OnPluginImeCompositionCompleted(const base::string16& text,
 686                                        int plugin_id);
 687   void OnSetInLiveResize(bool in_live_resize);
 688   void OnSetWindowVisibility(bool visible);
 689   void OnWindowFrameChanged(const gfx::Rect& window_frame,
 690                             const gfx::Rect& view_frame);
 691 #endif
 692
 693   // Adding a new message handler? Please add it in alphabetical order above
 694   // and put it in the same position in the .cc file.
 695
 696   // Misc private functions ----------------------------------------------------
 697   // Check whether the preferred size has changed.
 698   void CheckPreferredSize();
 699
 700   // Gets the currently focused element, if any.
 701   blink::WebElement GetFocusedElement() const;
 702
 703   // Called to get the WebPlugin to handle find requests in the document.
 704   // Returns NULL if there is no such WebPlugin.
 705   blink::WebPlugin* GetWebPluginForFind();
 706
 707 #if defined(OS_ANDROID)
 708   // Launch an Android content intent with the given URL.
 709   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
 710 #endif
 711
 712   // Sends a reply to the current find operation handling if it was a
 713   // synchronous find request.
 714   void SendFindReply(int request_id,
 715                      int match_count,
 716                      int ordinal,
 717                      const blink::WebRect& selection_rect,
 718                      bool final_status_update);
 719
 720   // Starts nav_state_sync_timer_ if it isn't already running.
 721   void StartNavStateSyncTimerIfNecessary();
 722
 723 #if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
 724   void UpdateFontRenderingFromRendererPrefs();
 725 #else
 726   void UpdateFontRenderingFromRendererPrefs() {}
 727 #endif
 728
 729   // Update the target url and tell the browser that the target URL has changed.
 730   // If |url| is empty, show |fallback_url|.
 731   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
 732
 733   // Tells the browser what the new list of favicons for the webpage is.
 734   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
 735
 736   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
 737   // the browser.
 738   void DidStopLoadingIcons();
 739
 740   // Coordinate conversion -----------------------------------------------------
 741
 742   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
 743
 744   // RenderFrameImpl accessible state ------------------------------------------
 745   // The following section is the set of methods that RenderFrameImpl needs
 746   // to access RenderViewImpl state. The set of state variables are page-level
 747   // specific, so they don't belong in RenderFrameImpl and should remain in
 748   // this object.
 749   base::ObserverList<RenderViewObserver>& observers() { return observers_; }
 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   // Platform specific theme preferences if any are updated here.
 765 #if defined(OS_WIN)
 766   void UpdateThemePrefs();
 767 #else
 768   void UpdateThemePrefs() {}
 769 #endif
 770
 771   // ---------------------------------------------------------------------------
 772   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
 773   // it in the same order in the .cc file as it was in the header.
 774   // ---------------------------------------------------------------------------
 775
 776   // Settings ------------------------------------------------------------------
 777
 778   WebPreferences webkit_preferences_;
 779   RendererPreferences renderer_preferences_;
 780
 781   HostZoomLevels host_zoom_levels_;
 782
 783   // Whether content state (such as form state, scroll position and page
 784   // contents) should be sent to the browser immediately. This is normally
 785   // false, but set to true by some tests.
 786   bool send_content_state_immediately_;
 787
 788   // Bitwise-ORed set of extra bindings that have been enabled.  See
 789   // BindingsPolicy for details.
 790   int enabled_bindings_;
 791
 792   // If true, we send IPC messages when |preferred_size_| changes.
 793   bool send_preferred_size_changes_;
 794
 795   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
 796   // scroll bars on windows smaller than this size.  Used for windows that the
 797   // browser resizes to the size of the content, such as browser action popups.
 798   // If a render view is set to the minimum size of its content, webkit may add
 799   // scroll bars.  This makes sense for fixed sized windows, but it does not
 800   // make sense when the size of the view was chosen to fit the content.
 801   // This setting ensures that no scroll bars are drawn.  The size limit exists
 802   // because if the view grows beyond a size known to the browser, scroll bars
 803   // should be drawn.
 804   gfx::Size disable_scrollbars_size_limit_;
 805
 806   // Loading state -------------------------------------------------------------
 807
 808   // The gesture that initiated the current navigation.
 809   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 810   NavigationGesture navigation_gesture_;
 811
 812   // Used for popups.
 813   bool opened_by_user_gesture_;
 814
 815   // Whether this RenderView was created by a frame that was suppressing its
 816   // opener. If so, we may want to load pages in a separate process.  See
 817   // decidePolicyForNavigation for details.
 818   bool opener_suppressed_;
 819
 820   // Whether we must stop creating nested message loops for modal dialogs until
 821   // OnSwapOut is called.  This is necessary because modal dialogs have a
 822   // PageGroupLoadDeferrer on the stack that interferes with swapping out.
 823   bool suppress_dialogs_until_swap_out_;
 824
 825   // Timer used to delay the updating of nav state (see SyncNavigationState).
 826   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
 827
 828   // Page IDs ------------------------------------------------------------------
 829   // See documentation in RenderView.
 830   int32 page_id_;
 831
 832   // The next available page ID to use for this RenderView.  These IDs are
 833   // specific to a given RenderView and the frames within it.
 834   int32 next_page_id_;
 835
 836   // The offset of the current item in the history list.
 837   int history_list_offset_;
 838
 839   // The RenderView's current impression of the history length.  This includes
 840   // any items that have committed in this process, but because of cross-process
 841   // navigations, the history may have some entries that were committed in other
 842   // processes.  We won't know about them until the next navigation in this
 843   // process.
 844   int history_list_length_;
 845
 846   // Counter to track how many frames have sent start notifications but not stop
 847   // notifications. TODO(avi): Remove this once DidStartLoading/DidStopLoading
 848   // are gone.
 849   int frames_in_progress_;
 850
 851   // UI state ------------------------------------------------------------------
 852
 853   // The state of our target_url transmissions. When we receive a request to
 854   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
 855   // comes back - if a new request comes in before the ACK, we store the new
 856   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
 857   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
 858   // revert to TARGET_INFLIGHT.
 859   //
 860   // We don't need a queue of URLs to send, as only the latest is useful.
 861   enum {
 862     TARGET_NONE,
 863     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
 864     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
 865   } target_url_status_;
 866
 867   // The URL we show the user in the status bar. We use this to determine if we
 868   // want to send a new one (we do not need to send duplicates). It will be
 869   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
 870   // updated last.
 871   GURL target_url_;
 872
 873   // The URL the user's mouse is hovering over.
 874   GURL mouse_over_url_;
 875
 876   // The URL that has keyboard focus.
 877   GURL focus_url_;
 878
 879   // The next target URL we want to send to the browser.
 880   GURL pending_target_url_;
 881
 882   // Indicates whether this view overrides url-based zoom settings.
 883   bool uses_temporary_zoom_level_;
 884
 885 #if defined(OS_ANDROID)
 886   // Cache the old top controls state constraints. Used when updating
 887   // current value only without altering the constraints.
 888   TopControlsState top_controls_constraints_;
 889 #endif
 890
 891   // View ----------------------------------------------------------------------
 892
 893   // Cache the preferred size of the page in order to prevent sending the IPC
 894   // when layout() recomputes but doesn't actually change sizes.
 895   gfx::Size preferred_size_;
 896
 897   // Used to delay determining the preferred size (to avoid intermediate
 898   // states for the sizes).
 899   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
 900
 901   // Bookkeeping to suppress redundant scroll and focus requests for an already
 902   // scrolled and focused editable node.
 903   bool has_scrolled_focused_editable_node_into_rect_;
 904   gfx::Rect rect_for_scrolled_focused_editable_node_;
 905
 906   // Helper objects ------------------------------------------------------------
 907
 908   RenderFrameImpl* main_render_frame_;
 909
 910   // The next group of objects all implement RenderViewObserver, so are deleted
 911   // along with the RenderView automatically.  This is why we just store
 912   // weak references.
 913
 914   // The speech recognition dispatcher attached to this view, lazily
 915   // initialized.
 916   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
 917
 918   // Mouse Lock dispatcher attached to this view.
 919   MouseLockDispatcher* mouse_lock_dispatcher_;
 920
 921   scoped_ptr<HistoryController> history_controller_;
 922
 923 #if defined(OS_ANDROID)
 924   // Android Specific ---------------------------------------------------------
 925
 926   // Expected id of the next content intent launched. Used to prevent scheduled
 927   // intents to be launched if aborted.
 928   size_t expected_content_intent_id_;
 929
 930   // List of click-based content detectors.
 931   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
 932   ContentDetectorList content_detectors_;
 933
 934   // A date/time picker object for date and time related input elements.
 935   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
 936 #endif
 937
 938   // Plugins -------------------------------------------------------------------
 939
 940   // All the currently active plugin delegates for this RenderView; kept so
 941   // that we can enumerate them to send updates about things like window
 942   // location or tab focus and visibily. These are non-owning references.
 943   std::set<WebPluginDelegateProxy*> plugin_delegates_;
 944
 945 #if defined(OS_WIN)
 946   // The ID of the focused NPAPI plugin.
 947   int focused_plugin_id_;
 948 #endif
 949
 950 #if defined(ENABLE_PLUGINS)
 951   PepperPluginInstanceImpl* plugin_find_handler_;
 952
 953   typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
 954   PepperPluginSet active_pepper_instances_;
 955
 956   // TODO(jam): these belong on RenderFrame, once the browser knows which frame
 957   // is focused and sends the IPCs which use these to the correct frame. Until
 958   // then, we must store these on RenderView as that's the one place that knows
 959   // about all the RenderFrames for a page.
 960
 961   // Whether or not the focus is on a PPAPI plugin
 962   PepperPluginInstanceImpl* focused_pepper_plugin_;
 963
 964   // The plugin instance that received the last mouse event. It is set to NULL
 965   // if the last mouse event went to elements other than Pepper plugins.
 966   // |pepper_last_mouse_event_target_| is not owned by this class. We depend on
 967   // the RenderFrameImpl to NULL it out when it destructs.
 968   PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
 969 #endif
 970
 971   // Misc ----------------------------------------------------------------------
 972
 973   // The current and pending file chooser completion objects. If the queue is
 974   // nonempty, the first item represents the currently running file chooser
 975   // callback, and the remaining elements are the other file chooser completion
 976   // still waiting to be run (in order).
 977   struct PendingFileChooser;
 978   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
 979
 980   // The current directory enumeration callback
 981   std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
 982   int enumeration_completion_id_;
 983
 984   // The SessionStorage namespace that we're assigned to has an ID, and that ID
 985   // is passed to us upon creation.  WebKit asks for this ID upon first use and
 986   // uses it whenever asking the browser process to allocate new storage areas.
 987   int64 session_storage_namespace_id_;
 988
 989   // Stores edit commands associated to the next key event.
 990   // Shall be cleared as soon as the next key event is processed.
 991   EditCommands edit_commands_;
 992
 993   // All the registered observers.  We expect this list to be small, so vector
 994   // is fine.
 995   base::ObserverList<RenderViewObserver> observers_;
 996
 997   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
 998   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
 999
1000   // This field stores drag/drop related info for the event that is currently
1001   // being handled. If the current event results in starting a drag/drop
1002   // session, this info is sent to the browser along with other drag/drop info.
1003   DragEventSourceInfo possible_drag_event_info_;
1004
1005   // NOTE: stats_collection_observer_ should be the last members because their
1006   // constructors call the AddObservers method of RenderViewImpl.
1007   scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
1008
1009   typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
1010   BitmapMap disambiguation_bitmaps_;
1011
1012   bool page_scale_factor_is_one_;
1013
1014   // ---------------------------------------------------------------------------
1015   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1016   // sections rather than throwing it randomly at the end. If you're adding a
1017   // bunch of stuff, you should probably create a helper class and put your
1018   // data and methods on that to avoid bloating RenderView more.  You can
1019   // use the Observer interface to filter IPC messages and receive frame change
1020   // notifications.
1021   // ---------------------------------------------------------------------------
1022
1023   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1024 };
1025
1026 }  // namespace content
1027
1028 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_