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 SkBitmap;
  76 struct PP_NetAddress_Private;
  77 struct ViewMsg_New_Params;
  78 struct ViewMsg_Resize_Params;
  79 struct ViewMsg_StopFinding_Params;
  80
  81 namespace base {
  82 class CommandLine;
  83 }
  84
  85 namespace blink {
  86 class WebApplicationCacheHost;
  87 class WebApplicationCacheHostClient;
  88 class WebDOMMessageEvent;
  89 class WebDataSource;
  90 class WebDateTimeChooserCompletion;
  91 class WebDragData;
  92 class WebGestureEvent;
  93 class WebIconURL;
  94 class WebImage;
  95 class WebPeerConnection00Handler;
  96 class WebPeerConnection00HandlerClient;
  97 class WebMouseEvent;
  98 class WebPeerConnectionHandler;
  99 class WebPeerConnectionHandlerClient;
 100 class WebSpeechRecognizer;
 101 class WebStorageNamespace;
 102 class WebTouchEvent;
 103 class WebURLRequest;
 104 struct WebActiveWheelFlingParameters;
 105 struct WebDateTimeChooserParams;
 106 struct WebFileChooserParams;
 107 struct WebFindOptions;
 108 struct WebMediaPlayerAction;
 109 struct WebPluginAction;
 110 struct WebPoint;
 111 struct WebWindowFeatures;
 112
 113 #if defined(OS_ANDROID)
 114 class WebHitTestResult;
 115 #endif
 116 }  // namespace blink
 117
 118 namespace content {
 119
 120 class HistoryController;
 121 class HistoryEntry;
 122 class MouseLockDispatcher;
 123 class PageState;
 124 class PepperPluginInstanceImpl;
 125 class RenderViewImplTest;
 126 class RenderViewObserver;
 127 class RenderViewTest;
 128 class RendererDateTimePicker;
 129 class RendererWebColorChooserImpl;
 130 class SpeechRecognitionDispatcher;
 131 class WebPluginDelegateProxy;
 132 struct DropData;
 133 struct FaviconURL;
 134 struct FileChooserParams;
 135 struct FileChooserFileInfo;
 136 struct RenderViewImplParams;
 137
 138 #if defined(OS_ANDROID)
 139 class WebMediaPlayerProxyAndroid;
 140 #endif
 141
 142 //
 143 // RenderView is an object that manages a WebView object, and provides a
 144 // communication interface with an embedding application process.
 145 //
 146 // DEPRECATED: RenderViewImpl is being removed as part of the SiteIsolation
 147 // project. New code should be added to RenderFrameImpl instead.
 148 //
 149 // For context, please see https://crbug.com/467770 and
 150 // http://www.chromium.org/developers/design-documents/site-isolation.
 151 class CONTENT_EXPORT RenderViewImpl
 152     : public RenderWidget,
 153       NON_EXPORTED_BASE(public blink::WebViewClient),
 154       NON_EXPORTED_BASE(public blink::WebPageSerializerClient),
 155       public RenderView,
 156       public base::SupportsWeakPtr<RenderViewImpl> {
 157  public:
 158   // Creates a new RenderView. |opener_id| is the routing ID of the RenderView
 159   // responsible for creating this RenderView. Note that if the original opener
 160   // has been closed, |window_was_created_with_opener| will be true and
 161   // |opener_id| will be MSG_ROUTING_NONE. When |swapped_out| is true, the
 162   // |proxy_routing_id| is specified, so a RenderFrameProxy can be created for
 163   // this RenderView's main RenderFrame.
 164   static RenderViewImpl* Create(const ViewMsg_New_Params& params,
 165                                 CompositorDependencies* compositor_deps,
 166                                 bool was_created_by_renderer);
 167
 168   // Used by content_layouttest_support to hook into the creation of
 169   // RenderViewImpls.
 170   static void InstallCreateHook(
 171       RenderViewImpl* (*create_render_view_impl)(const ViewMsg_New_Params&));
 172
 173   // Returns the RenderViewImpl containing the given WebView.
 174   static RenderViewImpl* FromWebView(blink::WebView* webview);
 175
 176   // Returns the RenderViewImpl for the given routing ID.
 177   static RenderViewImpl* FromRoutingID(int routing_id);
 178
 179   // May return NULL when the view is closing.
 180   blink::WebView* webview() const;
 181
 182   const WebPreferences& webkit_preferences() const {
 183     return webkit_preferences_;
 184   }
 185
 186   const RendererPreferences& renderer_preferences() const {
 187     return renderer_preferences_;
 188   }
 189
 190   void set_send_content_state_immediately(bool value) {
 191     send_content_state_immediately_ = value;
 192   }
 193
 194   MouseLockDispatcher* mouse_lock_dispatcher() {
 195     return mouse_lock_dispatcher_;
 196   }
 197
 198   HistoryController* history_controller() {
 199     return history_controller_.get();
 200   }
 201
 202   // Functions to add and remove observers for this object.
 203   void AddObserver(RenderViewObserver* observer);
 204   void RemoveObserver(RenderViewObserver* observer);
 205
 206   // Returns the StatsCollectionObserver associated with this view, or NULL
 207   // if one wasn't created;
 208   StatsCollectionObserver* GetStatsCollectionObserver() {
 209     return stats_collection_observer_.get();
 210   }
 211
 212   // Adds the given file chooser request to the file_chooser_completion_ queue
 213   // (see that var for more) and requests the chooser be displayed if there are
 214   // no other waiting items in the queue.
 215   //
 216   // Returns true if the chooser was successfully scheduled. False means we
 217   // didn't schedule anything.
 218   bool ScheduleFileChooser(const FileChooserParams& params,
 219                            blink::WebFileChooserCompletion* completion);
 220
 221 #if defined(OS_ANDROID)
 222   void DismissDateTimeDialog();
 223 #endif
 224
 225   bool is_loading() const { return frames_in_progress_ != 0; }
 226
 227   void FrameDidStartLoading(blink::WebFrame* frame);
 228   void FrameDidStopLoading(blink::WebFrame* frame);
 229
 230   // Plugin-related functions --------------------------------------------------
 231
 232 #if defined(ENABLE_PLUGINS)
 233   // Get/set the plugin which will be used as to handle document find requests.
 234   void set_plugin_find_handler(PepperPluginInstanceImpl* plugin) {
 235     plugin_find_handler_ = plugin;
 236   }
 237   PepperPluginInstanceImpl* plugin_find_handler() {
 238     return plugin_find_handler_;
 239   }
 240
 241   PepperPluginInstanceImpl* focused_pepper_plugin() {
 242     return focused_pepper_plugin_;
 243   }
 244   PepperPluginInstanceImpl* pepper_last_mouse_event_target() {
 245     return pepper_last_mouse_event_target_;
 246   }
 247   void set_pepper_last_mouse_event_target(PepperPluginInstanceImpl* plugin) {
 248     pepper_last_mouse_event_target_ = plugin;
 249   }
 250
 251 #if defined(OS_MACOSX) || defined(OS_WIN)
 252   // Informs the render view that the given plugin has gained or lost focus.
 253   void PluginFocusChanged(bool focused, int plugin_id);
 254 #endif
 255
 256 #if defined(OS_MACOSX)
 257   // Starts plugin IME.
 258   void StartPluginIme();
 259 #endif
 260
 261   // Indicates that the given instance has been created.
 262   void PepperInstanceCreated(PepperPluginInstanceImpl* instance);
 263
 264   // Indicates that the given instance is being destroyed. This is called from
 265   // the destructor, so it's important that the instance is not dereferenced
 266   // from this call.
 267   void PepperInstanceDeleted(PepperPluginInstanceImpl* instance);
 268
 269   // Notification that the given plugin is focused or unfocused.
 270   void PepperFocusChanged(PepperPluginInstanceImpl* instance, bool focused);
 271
 272   void RegisterPluginDelegate(WebPluginDelegateProxy* delegate);
 273   void UnregisterPluginDelegate(WebPluginDelegateProxy* delegate);
 274 #endif  // ENABLE_PLUGINS
 275
 276   void TransferActiveWheelFlingAnimation(
 277       const blink::WebActiveWheelFlingParameters& params);
 278
 279   // Returns true if the focused element is editable text from the perspective
 280   // of IME support (also used for on-screen keyboard). Works correctly inside
 281   // supported PPAPI plugins.
 282   bool HasIMETextFocus();
 283
 284   // Dispatches the current navigation state to the browser. Called on a
 285   // periodic timer so we don't send too many messages.
 286   void SyncNavigationState();
 287
 288   // Returns the length of the session history of this RenderView. Note that
 289   // this only coincides with the actual length of the session history if this
 290   // RenderView is the currently active RenderView of a WebContents.
 291   unsigned GetLocalSessionHistoryLengthForTesting() const;
 292
 293   // Invokes OnSetFocus and marks the widget as active depending on the value
 294   // of |enable|. This is used for layout tests that need to control the focus
 295   // synchronously from the renderer.
 296   void SetFocusAndActivateForTesting(bool enable);
 297
 298   // Change the device scale factor and force the compositor to resize.
 299   void SetDeviceScaleFactorForTesting(float factor);
 300
 301   // Change the device ICC color profile while running a layout test.
 302   void SetDeviceColorProfileForTesting(const std::vector<char>& color_profile);
 303   void ResetDeviceColorProfileForTesting() override;
 304
 305   // Used to force the size of a window when running layout tests.
 306   void ForceResizeForTesting(const gfx::Size& new_size);
 307
 308   void UseSynchronousResizeModeForTesting(bool enable);
 309
 310   // Control autoresize mode.
 311   void EnableAutoResizeForTesting(const gfx::Size& min_size,
 312                                   const gfx::Size& max_size);
 313   void DisableAutoResizeForTesting(const gfx::Size& new_size);
 314
 315   // IPC::Listener implementation ----------------------------------------------
 316
 317   bool OnMessageReceived(const IPC::Message& msg) override;
 318
 319   // blink::WebWidgetClient implementation ------------------------------------
 320
 321   // Most methods are handled by RenderWidget.
 322   virtual void didFocus();
 323   virtual void didBlur();
 324   virtual void show(blink::WebNavigationPolicy policy);
 325   virtual bool requestPointerLock();
 326   virtual void requestPointerUnlock();
 327   virtual bool isPointerLocked();
 328   virtual void didHandleGestureEvent(const blink::WebGestureEvent& event,
 329                                      bool event_cancelled) override;
 330   virtual void onMouseDown(const blink::WebNode& mouse_down_node) override;
 331
 332   virtual void initializeLayerTreeView() override;
 333
 334   // blink::WebViewClient implementation --------------------------------------
 335
 336   virtual blink::WebView* createView(blink::WebLocalFrame* creator,
 337                                      const blink::WebURLRequest& request,
 338                                      const blink::WebWindowFeatures& features,
 339                                      const blink::WebString& frame_name,
 340                                      blink::WebNavigationPolicy policy,
 341                                      bool suppress_opener);
 342   virtual blink::WebWidget* createPopupMenu(blink::WebPopupType popup_type);
 343   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 344   virtual void printPage(blink::WebLocalFrame* frame);
 345   virtual bool enumerateChosenDirectory(
 346       const blink::WebString& path,
 347       blink::WebFileChooserCompletion* chooser_completion);
 348   virtual void saveImageFromDataURL(const blink::WebString& data_url);
 349   virtual void didCancelCompositionOnSelectionChange();
 350   virtual bool handleCurrentKeyboardEvent();
 351   virtual bool runFileChooser(
 352       const blink::WebFileChooserParams& params,
 353       blink::WebFileChooserCompletion* chooser_completion);
 354   void SetValidationMessageDirection(base::string16* main_text,
 355                                      blink::WebTextDirection main_text_hint,
 356                                      base::string16* sub_text,
 357                                      blink::WebTextDirection sub_text_hint);
 358   virtual void showValidationMessage(const blink::WebRect& anchor_in_root_view,
 359                                      const blink::WebString& main_text,
 360                                      blink::WebTextDirection main_text_hint,
 361                                      const blink::WebString& sub_text,
 362                                      blink::WebTextDirection hint) override;
 363   virtual void hideValidationMessage() override;
 364   virtual void moveValidationMessage(
 365       const blink::WebRect& anchor_in_root_view) override;
 366   virtual void setStatusText(const blink::WebString& text);
 367   virtual void setMouseOverURL(const blink::WebURL& url);
 368   virtual void setKeyboardFocusURL(const blink::WebURL& url);
 369   virtual void startDragging(blink::WebLocalFrame* frame,
 370                              const blink::WebDragData& data,
 371                              blink::WebDragOperationsMask mask,
 372                              const blink::WebImage& image,
 373                              const blink::WebPoint& imageOffset);
 374   virtual bool acceptsLoadDrops();
 375   virtual void focusNext();
 376   virtual void focusPrevious();
 377   virtual void focusedNodeChanged(const blink::WebNode& fromNode,
 378                                   const blink::WebNode& toNode);
 379   virtual void didUpdateLayout();
 380 #if defined(OS_ANDROID) || defined(USE_AURA)
 381   virtual bool didTapMultipleTargets(
 382       const blink::WebSize& inner_viewport_offset,
 383       const blink::WebRect& touch_rect,
 384       const blink::WebVector<blink::WebRect>& target_rects);
 385 #endif
 386   virtual blink::WebString acceptLanguages();
 387   virtual void navigateBackForwardSoon(int offset);
 388   virtual int historyBackListCount();
 389   virtual int historyForwardListCount();
 390   virtual blink::WebSpeechRecognizer* speechRecognizer();
 391   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
 392   virtual void zoomLevelChanged();
 393   virtual void pageScaleFactorChanged();
 394   virtual double zoomLevelToZoomFactor(double zoom_level) const;
 395   virtual double zoomFactorToZoomLevel(double factor) const;
 396   virtual blink::WebPageVisibilityState visibilityState() const;
 397   virtual void draggableRegionsChanged();
 398
 399 #if defined(OS_ANDROID)
 400   virtual void scheduleContentIntent(const blink::WebURL& intent);
 401   virtual void cancelScheduledContentIntents();
 402   virtual blink::WebContentDetectionResult detectContentAround(
 403       const blink::WebHitTestResult& touch_hit);
 404
 405   // Only used on Android since all other platforms implement
 406   // date and time input fields using MULTIPLE_FIELDS_UI
 407   virtual bool openDateTimeChooser(const blink::WebDateTimeChooserParams&,
 408                                    blink::WebDateTimeChooserCompletion*);
 409   virtual void didScrollWithKeyboard(const blink::WebSize& delta);
 410 #endif
 411
 412   // blink::WebPageSerializerClient implementation ----------------------------
 413
 414   virtual void didSerializeDataForFrame(
 415       const blink::WebURL& frame_url,
 416       const blink::WebCString& data,
 417       PageSerializationStatus status) override;
 418
 419   // RenderView implementation -------------------------------------------------
 420
 421   bool Send(IPC::Message* message) override;
 422   RenderFrameImpl* GetMainRenderFrame() override;
 423   int GetRoutingID() const override;
 424   gfx::Size GetSize() const override;
 425   WebPreferences& GetWebkitPreferences() override;
 426   void SetWebkitPreferences(const WebPreferences& preferences) override;
 427   blink::WebView* GetWebView() override;
 428   bool IsEditableNode(const blink::WebNode& node) const override;
 429   bool ShouldDisplayScrollbars(int width, int height) const override;
 430   int GetEnabledBindings() const override;
 431   bool GetContentStateImmediately() const override;
 432   blink::WebPageVisibilityState GetVisibilityState() const override;
 433   void DidStartLoading() override;
 434   void DidStopLoading() override;
 435   void Repaint(const gfx::Size& size) override;
 436   void SetEditCommandForNextKeyEvent(const std::string& name,
 437                                      const std::string& value) override;
 438   void ClearEditCommands() override;
 439   SSLStatus GetSSLStatusOfFrame(blink::WebFrame* frame) const override;
 440   const std::string& GetAcceptLanguages() const override;
 441 #if defined(OS_ANDROID)
 442   void UpdateTopControlsState(TopControlsState constraints,
 443                               TopControlsState current,
 444                               bool animate) override;
 445 #endif
 446   bool uses_temporary_zoom_level() const { return uses_temporary_zoom_level_; }
 447
 448   // Please do not add your stuff randomly to the end here. If there is an
 449   // appropriate section, add it there. If not, there are some random functions
 450   // nearer to the top you can add it to.
 451
 452  protected:
 453   // RenderWidget overrides:
 454   void Close() override;
 455   void OnResize(const ViewMsg_Resize_Params& params) override;
 456   void DidInitiatePaint() override;
 457   void DidFlushPaint() override;
 458   gfx::Vector2d GetScrollOffset() override;
 459   void DidHandleKeyEvent() override;
 460   bool WillHandleMouseEvent(const blink::WebMouseEvent& event) override;
 461   bool WillHandleGestureEvent(const blink::WebGestureEvent& event) override;
 462   bool HasTouchEventHandlersAt(const gfx::Point& point) const override;
 463   void OnSetFocus(bool enable) override;
 464   void OnWasHidden() override;
 465   void OnWasShown(bool needs_repainting,
 466                   const ui::LatencyInfo& latency_info) override;
 467   GURL GetURLForGraphicsContext3D() override;
 468   void OnImeSetComposition(
 469       const base::string16& text,
 470       const std::vector<blink::WebCompositionUnderline>& underlines,
 471       int selection_start,
 472       int selection_end) override;
 473   void OnImeConfirmComposition(const base::string16& text,
 474                                const gfx::Range& replacement_range,
 475                                bool keep_selection) override;
 476   void SetDeviceScaleFactor(float device_scale_factor) override;
 477   bool SetDeviceColorProfile(const std::vector<char>& color_profile) override;
 478   void OnOrientationChange() override;
 479   ui::TextInputType GetTextInputType() override;
 480   void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) override;
 481   void FocusChangeComplete() override;
 482   void GetCompositionCharacterBounds(
 483       std::vector<gfx::Rect>* character_bounds) override;
 484   void GetCompositionRange(gfx::Range* range) override;
 485   bool CanComposeInline() override;
 486   void DidCommitCompositorFrame() override;
 487   void DidCompletePageScaleAnimation() override;
 488
 489  protected:
 490   explicit RenderViewImpl(const ViewMsg_New_Params& params);
 491
 492   void Initialize(const ViewMsg_New_Params& params,
 493                   CompositorDependencies* compositor_deps,
 494                   bool was_created_by_renderer);
 495   void SetScreenMetricsEmulationParameters(
 496       bool enabled,
 497       const blink::WebDeviceEmulationParams& params) override;
 498
 499   // Do not delete directly.  This class is reference counted.
 500   virtual ~RenderViewImpl();
 501
 502  private:
 503   // For unit tests.
 504   friend class DevToolsAgentTest;
 505   friend class RenderViewImplTest;
 506   friend class RenderViewTest;
 507   friend class RendererAccessibilityTest;
 508
 509   // TODO(nasko): Temporarily friend RenderFrameImpl, so we don't duplicate
 510   // utility functions needed in both classes, while we move frame specific
 511   // code away from this class.
 512   friend class RenderFrameImpl;
 513
 514   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, RenderFrameMessageAfterDetach);
 515   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, DecideNavigationPolicyForWebUI);
 516   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 517                            DidFailProvisionalLoadWithErrorForError);
 518   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 519                            DidFailProvisionalLoadWithErrorForCancellation);
 520   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ImeComposition);
 521   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, InsertCharacters);
 522   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, JSBlockSentAfterPageLoad);
 523   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, LastCommittedUpdateState);
 524   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnHandleKeyboardEvent);
 525   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnImeTypeChanged);
 526   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavStateChanged);
 527   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnSetTextDirection);
 528   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnUpdateWebPreferences);
 529   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 530                            SetEditableSelectionAndComposition);
 531   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, StaleNavigationsIgnored);
 532   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 533                            DontIgnoreBackAfterNavEntryLimit);
 534   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, UpdateTargetURLWithInvalidURL);
 535   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 536                            GetCompositionCharacterBoundsTest);
 537   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, OnNavigationHttpPost);
 538   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ScreenMetricsEmulation);
 539   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 540                            DecideNavigationPolicyHandlesAllTopLevel);
 541 #if defined(OS_MACOSX)
 542   FRIEND_TEST_ALL_PREFIXES(RenderViewTest, MacTestCmdUp);
 543 #endif
 544   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SetHistoryLengthAndOffset);
 545   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ZoomLimit);
 546   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, NavigateFrame);
 547   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, BasicRenderFrame);
 548   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, TextInputTypeWithPepper);
 549   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
 550                            MessageOrderInDidChangeSelection);
 551   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendCandidateWindowEvents);
 552   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, RenderFrameClearedAfterClose);
 553   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, Suppresses);
 554   FRIEND_TEST_ALL_PREFIXES(SuppressErrorPageTest, DoesNotSuppress);
 555
 556   typedef std::map<GURL, double> HostZoomLevels;
 557
 558   enum ErrorPageType {
 559     DNS_ERROR,
 560     HTTP_404,
 561     CONNECTION_ERROR,
 562   };
 563
 564   // Old WebFrameClient implementations ----------------------------------------
 565
 566   // RenderViewImpl used to be a WebFrameClient, but now RenderFrameImpl is the
 567   // WebFrameClient. However, many implementations of WebFrameClient methods
 568   // still live here and are called from RenderFrameImpl. These implementations
 569   // are to be moved to RenderFrameImpl <http://crbug.com/361761>.
 570
 571   void didChangeIcon(blink::WebLocalFrame*, blink::WebIconURL::Type);
 572   void didUpdateCurrentHistoryItem(blink::WebLocalFrame* frame);
 573   void didChangeScrollOffset(blink::WebLocalFrame* frame);
 574
 575   static Referrer GetReferrerFromRequest(
 576       blink::WebFrame* frame,
 577       const blink::WebURLRequest& request);
 578
 579   static WindowOpenDisposition NavigationPolicyToDisposition(
 580       blink::WebNavigationPolicy policy);
 581
 582   void UpdateSessionHistory(blink::WebFrame* frame);
 583   void SendUpdateState(HistoryEntry* entry);
 584
 585   void ApplyWebPreferencesInternal(const WebPreferences& prefs,
 586                                    blink::WebView* web_view,
 587                                    CompositorDependencies* compositor_deps);
 588
 589   // Sends a message and runs a nested message loop.
 590   bool SendAndRunNestedMessageLoop(IPC::SyncMessage* message);
 591
 592   // IPC message handlers ------------------------------------------------------
 593   //
 594   // The documentation for these functions should be in
 595   // content/common/*_messages.h for the message that the function is handling.
 596   void OnExecuteEditCommand(const std::string& name, const std::string& value);
 597   void OnMoveCaret(const gfx::Point& point);
 598   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 599   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
 600   void OnAllowBindings(int enabled_bindings_flags);
 601   void OnAllowScriptToClose(bool script_can_close);
 602   void OnCancelDownload(int32 download_id);
 603   void OnClearFocusedElement();
 604   void OnClosePage();
 605   void OnClose();
 606
 607   void OnShowContextMenu(ui::MenuSourceType source_type,
 608                          const gfx::Point& location);
 609   void OnCopyImageAt(int x, int y);
 610   void OnSaveImageAt(int x, int y);
 611   void OnDeterminePageLanguage();
 612   void OnDisableScrollbarsForSmallWindows(
 613       const gfx::Size& disable_scrollbars_size_limit);
 614   void OnDragSourceEnded(const gfx::Point& client_point,
 615                          const gfx::Point& screen_point,
 616                          blink::WebDragOperation drag_operation);
 617   void OnDragSourceSystemDragEnded();
 618   void OnDragTargetDrop(const gfx::Point& client_pt,
 619                         const gfx::Point& screen_pt,
 620                         int key_modifiers);
 621   void OnDragTargetDragEnter(const DropData& drop_data,
 622                              const gfx::Point& client_pt,
 623                              const gfx::Point& screen_pt,
 624                              blink::WebDragOperationsMask operations_allowed,
 625                              int key_modifiers);
 626   void OnDragTargetDragLeave();
 627   void OnDragTargetDragOver(const gfx::Point& client_pt,
 628                             const gfx::Point& screen_pt,
 629                             blink::WebDragOperationsMask operations_allowed,
 630                             int key_modifiers);
 631   void OnEnablePreferredSizeChangedMode();
 632   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
 633   void OnDisableAutoResize(const gfx::Size& new_size);
 634   void OnEnumerateDirectoryResponse(int id,
 635                                     const std::vector<base::FilePath>& paths);
 636   void OnFileChooserResponse(
 637       const std::vector<content::FileChooserFileInfo>& files);
 638   void OnFind(int request_id,
 639               const base::string16&,
 640               const blink::WebFindOptions&);
 641   void OnGetAllSavableResourceLinksForCurrentPage(const GURL& page_url);
 642   void OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
 643       const std::vector<GURL>& links,
 644       const std::vector<base::FilePath>& local_paths,
 645       const base::FilePath& local_directory_name);
 646   void OnMediaPlayerActionAt(const gfx::Point& location,
 647                              const blink::WebMediaPlayerAction& action);
 648   void OnPluginActionAt(const gfx::Point& location,
 649                         const blink::WebPluginAction& action);
 650   void OnMoveOrResizeStarted();
 651   void OnReleaseDisambiguationPopupBitmap(const cc::SharedBitmapId& id);
 652   void OnResetPageEncodingToDefault();
 653   void OnSetActive(bool active);
 654   void OnSetBackgroundOpaque(bool opaque);
 655   void OnExitFullscreen();
 656   void OnSetHistoryOffsetAndLength(int history_offset, int history_length);
 657   void OnSetInitialFocus(bool reverse);
 658   void OnSetPageEncoding(const std::string& encoding_name);
 659   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
 660   void OnSetWebUIProperty(const std::string& name, const std::string& value);
 661   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
 662   void OnSetZoomLevelForView(bool uses_temporary_zoom_level, double level);
 663   void OnStopFinding(StopFindAction action);
 664   void OnSuppressDialogsUntilSwapOut();
 665   void OnThemeChanged();
 666   void OnUpdateTargetURLAck();
 667   void OnUpdateWebPreferences(const WebPreferences& prefs);
 668   void OnResetPageScale();
 669   void OnZoom(PageZoom zoom);
 670   void OnEnableViewSourceMode();
 671   void OnForceRedraw(int request_id);
 672   void OnSelectWordAroundCaret();
 673 #if defined(OS_ANDROID)
 674   void OnActivateNearestFindResult(int request_id, float x, float y);
 675   void OnFindMatchRects(int current_version);
 676   void OnUndoScrollFocusedEditableNodeIntoRect();
 677   void OnUpdateTopControlsState(bool enable_hiding,
 678                                 bool enable_showing,
 679                                 bool animate);
 680   void OnExtractSmartClipData(const gfx::Rect& rect);
 681 #elif defined(OS_MACOSX)
 682   void OnGetRenderedText();
 683   void OnPluginImeCompositionCompleted(const base::string16& text,
 684                                        int plugin_id);
 685   void OnSetInLiveResize(bool in_live_resize);
 686   void OnSetWindowVisibility(bool visible);
 687   void OnWindowFrameChanged(const gfx::Rect& window_frame,
 688                             const gfx::Rect& view_frame);
 689 #endif
 690
 691   // Adding a new message handler? Please add it in alphabetical order above
 692   // and put it in the same position in the .cc file.
 693
 694   // Misc private functions ----------------------------------------------------
 695   // Check whether the preferred size has changed.
 696   void CheckPreferredSize();
 697
 698   // Gets the currently focused element, if any.
 699   blink::WebElement GetFocusedElement() const;
 700
 701   // Called to get the WebPlugin to handle find requests in the document.
 702   // Returns NULL if there is no such WebPlugin.
 703   blink::WebPlugin* GetWebPluginForFind();
 704
 705 #if defined(OS_ANDROID)
 706   // Launch an Android content intent with the given URL.
 707   void LaunchAndroidContentIntent(const GURL& intent_url, size_t request_id);
 708 #endif
 709
 710   // Sends a reply to the current find operation handling if it was a
 711   // synchronous find request.
 712   void SendFindReply(int request_id,
 713                      int match_count,
 714                      int ordinal,
 715                      const blink::WebRect& selection_rect,
 716                      bool final_status_update);
 717
 718   // Starts nav_state_sync_timer_ if it isn't already running.
 719   void StartNavStateSyncTimerIfNecessary();
 720
 721 #if defined(OS_WIN) || (defined(OS_POSIX) && !defined(OS_MACOSX))
 722   void UpdateFontRenderingFromRendererPrefs();
 723 #else
 724   void UpdateFontRenderingFromRendererPrefs() {}
 725 #endif
 726
 727   // Update the target url and tell the browser that the target URL has changed.
 728   // If |url| is empty, show |fallback_url|.
 729   void UpdateTargetURL(const GURL& url, const GURL& fallback_url);
 730
 731   // Tells the browser what the new list of favicons for the webpage is.
 732   void SendUpdateFaviconURL(const std::vector<FaviconURL>& urls);
 733
 734   // Invoked from DidStopLoading(). Sends the current list of loaded favicons to
 735   // the browser.
 736   void DidStopLoadingIcons();
 737
 738   // Coordinate conversion -----------------------------------------------------
 739
 740   gfx::RectF ClientRectToPhysicalWindowRect(const gfx::RectF& rect) const;
 741
 742   // RenderFrameImpl accessible state ------------------------------------------
 743   // The following section is the set of methods that RenderFrameImpl needs
 744   // to access RenderViewImpl state. The set of state variables are page-level
 745   // specific, so they don't belong in RenderFrameImpl and should remain in
 746   // this object.
 747   base::ObserverList<RenderViewObserver>& observers() { return observers_; }
 748
 749   // TODO(nasko): Remove this method when we move to frame proxy objects, since
 750   // the concept of swapped out will be eliminated.
 751   void set_is_swapped_out(bool swapped_out) {
 752     is_swapped_out_ = swapped_out;
 753   }
 754
 755   NavigationGesture navigation_gesture() {
 756     return navigation_gesture_;
 757   }
 758   void set_navigation_gesture(NavigationGesture gesture) {
 759     navigation_gesture_ = gesture;
 760   }
 761
 762   // Platform specific theme preferences if any are updated here.
 763 #if defined(OS_WIN)
 764   void UpdateThemePrefs();
 765 #else
 766   void UpdateThemePrefs() {}
 767 #endif
 768
 769   // ---------------------------------------------------------------------------
 770   // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
 771   // it in the same order in the .cc file as it was in the header.
 772   // ---------------------------------------------------------------------------
 773
 774   // Settings ------------------------------------------------------------------
 775
 776   WebPreferences webkit_preferences_;
 777   RendererPreferences renderer_preferences_;
 778
 779   HostZoomLevels host_zoom_levels_;
 780
 781   // Whether content state (such as form state, scroll position and page
 782   // contents) should be sent to the browser immediately. This is normally
 783   // false, but set to true by some tests.
 784   bool send_content_state_immediately_;
 785
 786   // Bitwise-ORed set of extra bindings that have been enabled.  See
 787   // BindingsPolicy for details.
 788   int enabled_bindings_;
 789
 790   // If true, we send IPC messages when |preferred_size_| changes.
 791   bool send_preferred_size_changes_;
 792
 793   // If non-empty, and |send_preferred_size_changes_| is true, disable drawing
 794   // scroll bars on windows smaller than this size.  Used for windows that the
 795   // browser resizes to the size of the content, such as browser action popups.
 796   // If a render view is set to the minimum size of its content, webkit may add
 797   // scroll bars.  This makes sense for fixed sized windows, but it does not
 798   // make sense when the size of the view was chosen to fit the content.
 799   // This setting ensures that no scroll bars are drawn.  The size limit exists
 800   // because if the view grows beyond a size known to the browser, scroll bars
 801   // should be drawn.
 802   gfx::Size disable_scrollbars_size_limit_;
 803
 804   // Loading state -------------------------------------------------------------
 805
 806   // The gesture that initiated the current navigation.
 807   // TODO(nasko): Move to RenderFrame, as this is per-frame state.
 808   NavigationGesture navigation_gesture_;
 809
 810   // Used for popups.
 811   bool opened_by_user_gesture_;
 812
 813   // Whether this RenderView was created by a frame that was suppressing its
 814   // opener. If so, we may want to load pages in a separate process.  See
 815   // decidePolicyForNavigation for details.
 816   bool opener_suppressed_;
 817
 818   // Whether we must stop creating nested message loops for modal dialogs until
 819   // OnSwapOut is called.  This is necessary because modal dialogs have a
 820   // PageGroupLoadDeferrer on the stack that interferes with swapping out.
 821   bool suppress_dialogs_until_swap_out_;
 822
 823   // Timer used to delay the updating of nav state (see SyncNavigationState).
 824   base::OneShotTimer<RenderViewImpl> nav_state_sync_timer_;
 825
 826   // Page IDs ------------------------------------------------------------------
 827   // See documentation in RenderView.
 828   int32 page_id_;
 829
 830   // The next available page ID to use for this RenderView.  These IDs are
 831   // specific to a given RenderView and the frames within it.
 832   int32 next_page_id_;
 833
 834   // The offset of the current item in the history list.
 835   int history_list_offset_;
 836
 837   // The RenderView's current impression of the history length.  This includes
 838   // any items that have committed in this process, but because of cross-process
 839   // navigations, the history may have some entries that were committed in other
 840   // processes.  We won't know about them until the next navigation in this
 841   // process.
 842   int history_list_length_;
 843
 844   // Counter to track how many frames have sent start notifications but not stop
 845   // notifications. TODO(avi): Remove this once DidStartLoading/DidStopLoading
 846   // are gone.
 847   int frames_in_progress_;
 848
 849   // UI state ------------------------------------------------------------------
 850
 851   // The state of our target_url transmissions. When we receive a request to
 852   // send a URL to the browser, we set this to TARGET_INFLIGHT until an ACK
 853   // comes back - if a new request comes in before the ACK, we store the new
 854   // URL in pending_target_url_ and set the status to TARGET_PENDING. If an
 855   // ACK comes back and we are in TARGET_PENDING, we send the stored URL and
 856   // revert to TARGET_INFLIGHT.
 857   //
 858   // We don't need a queue of URLs to send, as only the latest is useful.
 859   enum {
 860     TARGET_NONE,
 861     TARGET_INFLIGHT,  // We have a request in-flight, waiting for an ACK
 862     TARGET_PENDING    // INFLIGHT + we have a URL waiting to be sent
 863   } target_url_status_;
 864
 865   // The URL we show the user in the status bar. We use this to determine if we
 866   // want to send a new one (we do not need to send duplicates). It will be
 867   // equal to either |mouse_over_url_| or |focus_url_|, depending on which was
 868   // updated last.
 869   GURL target_url_;
 870
 871   // The URL the user's mouse is hovering over.
 872   GURL mouse_over_url_;
 873
 874   // The URL that has keyboard focus.
 875   GURL focus_url_;
 876
 877   // The next target URL we want to send to the browser.
 878   GURL pending_target_url_;
 879
 880   // Indicates whether this view overrides url-based zoom settings.
 881   bool uses_temporary_zoom_level_;
 882
 883 #if defined(OS_ANDROID)
 884   // Cache the old top controls state constraints. Used when updating
 885   // current value only without altering the constraints.
 886   TopControlsState top_controls_constraints_;
 887 #endif
 888
 889   // View ----------------------------------------------------------------------
 890
 891   // Cache the preferred size of the page in order to prevent sending the IPC
 892   // when layout() recomputes but doesn't actually change sizes.
 893   gfx::Size preferred_size_;
 894
 895   // Used to delay determining the preferred size (to avoid intermediate
 896   // states for the sizes).
 897   base::OneShotTimer<RenderViewImpl> check_preferred_size_timer_;
 898
 899   // Bookkeeping to suppress redundant scroll and focus requests for an already
 900   // scrolled and focused editable node.
 901   bool has_scrolled_focused_editable_node_into_rect_;
 902   gfx::Rect rect_for_scrolled_focused_editable_node_;
 903
 904   // Helper objects ------------------------------------------------------------
 905
 906   RenderFrameImpl* main_render_frame_;
 907
 908   // The next group of objects all implement RenderViewObserver, so are deleted
 909   // along with the RenderView automatically.  This is why we just store
 910   // weak references.
 911
 912   // The speech recognition dispatcher attached to this view, lazily
 913   // initialized.
 914   SpeechRecognitionDispatcher* speech_recognition_dispatcher_;
 915
 916   // Mouse Lock dispatcher attached to this view.
 917   MouseLockDispatcher* mouse_lock_dispatcher_;
 918
 919   scoped_ptr<HistoryController> history_controller_;
 920
 921 #if defined(OS_ANDROID)
 922   // Android Specific ---------------------------------------------------------
 923
 924   // Expected id of the next content intent launched. Used to prevent scheduled
 925   // intents to be launched if aborted.
 926   size_t expected_content_intent_id_;
 927
 928   // List of click-based content detectors.
 929   typedef std::vector< linked_ptr<ContentDetector> > ContentDetectorList;
 930   ContentDetectorList content_detectors_;
 931
 932   // A date/time picker object for date and time related input elements.
 933   scoped_ptr<RendererDateTimePicker> date_time_picker_client_;
 934 #endif
 935
 936   // Plugins -------------------------------------------------------------------
 937
 938   // All the currently active plugin delegates for this RenderView; kept so
 939   // that we can enumerate them to send updates about things like window
 940   // location or tab focus and visibily. These are non-owning references.
 941   std::set<WebPluginDelegateProxy*> plugin_delegates_;
 942
 943 #if defined(OS_WIN)
 944   // The ID of the focused NPAPI plugin.
 945   int focused_plugin_id_;
 946 #endif
 947
 948 #if defined(ENABLE_PLUGINS)
 949   PepperPluginInstanceImpl* plugin_find_handler_;
 950
 951   typedef std::set<PepperPluginInstanceImpl*> PepperPluginSet;
 952   PepperPluginSet active_pepper_instances_;
 953
 954   // TODO(jam): these belong on RenderFrame, once the browser knows which frame
 955   // is focused and sends the IPCs which use these to the correct frame. Until
 956   // then, we must store these on RenderView as that's the one place that knows
 957   // about all the RenderFrames for a page.
 958
 959   // Whether or not the focus is on a PPAPI plugin
 960   PepperPluginInstanceImpl* focused_pepper_plugin_;
 961
 962   // The plugin instance that received the last mouse event. It is set to NULL
 963   // if the last mouse event went to elements other than Pepper plugins.
 964   // |pepper_last_mouse_event_target_| is not owned by this class. We depend on
 965   // the RenderFrameImpl to NULL it out when it destructs.
 966   PepperPluginInstanceImpl* pepper_last_mouse_event_target_;
 967 #endif
 968
 969   // Misc ----------------------------------------------------------------------
 970
 971   // The current and pending file chooser completion objects. If the queue is
 972   // nonempty, the first item represents the currently running file chooser
 973   // callback, and the remaining elements are the other file chooser completion
 974   // still waiting to be run (in order).
 975   struct PendingFileChooser;
 976   std::deque< linked_ptr<PendingFileChooser> > file_chooser_completions_;
 977
 978   // The current directory enumeration callback
 979   std::map<int, blink::WebFileChooserCompletion*> enumeration_completions_;
 980   int enumeration_completion_id_;
 981
 982   // The SessionStorage namespace that we're assigned to has an ID, and that ID
 983   // is passed to us upon creation.  WebKit asks for this ID upon first use and
 984   // uses it whenever asking the browser process to allocate new storage areas.
 985   int64 session_storage_namespace_id_;
 986
 987   // Stores edit commands associated to the next key event.
 988   // Shall be cleared as soon as the next key event is processed.
 989   EditCommands edit_commands_;
 990
 991   // All the registered observers.  We expect this list to be small, so vector
 992   // is fine.
 993   base::ObserverList<RenderViewObserver> observers_;
 994
 995   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
 996   scoped_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
 997
 998   // This field stores drag/drop related info for the event that is currently
 999   // being handled. If the current event results in starting a drag/drop
1000   // session, this info is sent to the browser along with other drag/drop info.
1001   DragEventSourceInfo possible_drag_event_info_;
1002
1003   // NOTE: stats_collection_observer_ should be the last members because their
1004   // constructors call the AddObservers method of RenderViewImpl.
1005   scoped_ptr<StatsCollectionObserver> stats_collection_observer_;
1006
1007   typedef std::map<cc::SharedBitmapId, cc::SharedBitmap*> BitmapMap;
1008   BitmapMap disambiguation_bitmaps_;
1009
1010   bool page_scale_factor_is_one_;
1011
1012   // ---------------------------------------------------------------------------
1013   // ADDING NEW DATA? Please see if it fits appropriately in one of the above
1014   // sections rather than throwing it randomly at the end. If you're adding a
1015   // bunch of stuff, you should probably create a helper class and put your
1016   // data and methods on that to avoid bloating RenderView more.  You can
1017   // use the Observer interface to filter IPC messages and receive frame change
1018   // notifications.
1019   // ---------------------------------------------------------------------------
1020
1021   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
1022 };
1023
1024 }  // namespace content
1025
1026 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_