src/content/browser/android/content_view_core_impl.h

   1 // Copyright 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_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
   6 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
   7
   8 #include <vector>
   9
  10 #include "base/android/jni_android.h"
  11 #include "base/android/jni_helper.h"
  12 #include "base/basictypes.h"
  13 #include "base/compiler_specific.h"
  14 #include "base/i18n/rtl.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "base/process/process.h"
  17 #include "content/browser/renderer_host/render_widget_host_view_android.h"
  18 #include "content/browser/web_contents/web_contents_impl.h"
  19 #include "content/public/browser/android/content_view_core.h"
  20 #include "content/public/browser/notification_observer.h"
  21 #include "content/public/browser/notification_registrar.h"
  22 #include "content/public/browser/web_contents_observer.h"
  23 #include "third_party/WebKit/public/web/WebInputEvent.h"
  24 #include "ui/events/gesture_detection/filtered_gesture_provider.h"
  25 #include "ui/gfx/rect.h"
  26 #include "ui/gfx/rect_f.h"
  27 #include "url/gurl.h"
  28
  29 namespace ui {
  30 class ViewAndroid;
  31 class WindowAndroid;
  32 }
  33
  34 namespace content {
  35 class RenderWidgetHostViewAndroid;
  36 struct MenuItem;
  37
  38 // TODO(jrg): this is a shell.  Upstream the rest.
  39 class ContentViewCoreImpl : public ContentViewCore,
  40                             public ui::GestureProviderClient,
  41                             public NotificationObserver,
  42                             public WebContentsObserver {
  43  public:
  44   static ContentViewCoreImpl* FromWebContents(WebContents* web_contents);
  45   ContentViewCoreImpl(JNIEnv* env,
  46                       jobject obj,
  47                       WebContents* web_contents,
  48                       ui::ViewAndroid* view_android,
  49                       ui::WindowAndroid* window_android);
  50
  51   // ContentViewCore implementation.
  52   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() OVERRIDE;
  53   virtual WebContents* GetWebContents() const OVERRIDE;
  54   virtual ui::ViewAndroid* GetViewAndroid() const OVERRIDE;
  55   virtual ui::WindowAndroid* GetWindowAndroid() const OVERRIDE;
  56   virtual scoped_refptr<cc::Layer> GetLayer() const OVERRIDE;
  57   virtual void LoadUrl(NavigationController::LoadURLParams& params) OVERRIDE;
  58   virtual void ShowPastePopup(int x, int y) OVERRIDE;
  59   virtual void GetScaledContentBitmap(
  60       float scale,
  61       jobject bitmap_config,
  62       gfx::Rect src_subrect,
  63       const base::Callback<void(bool, const SkBitmap&)>& result_callback)
  64       OVERRIDE;
  65   virtual float GetDpiScale() const OVERRIDE;
  66   virtual void PauseVideo() OVERRIDE;
  67   virtual void PauseOrResumeGeolocation(bool should_pause) OVERRIDE;
  68
  69   // --------------------------------------------------------------------------
  70   // Methods called from Java via JNI
  71   // --------------------------------------------------------------------------
  72
  73   base::android::ScopedJavaLocalRef<jobject> GetWebContentsAndroid(JNIEnv* env,
  74                                                                    jobject obj);
  75
  76   void OnJavaContentViewCoreDestroyed(JNIEnv* env, jobject obj);
  77
  78   // Notifies the ContentViewCore that items were selected in the currently
  79   // showing select popup.
  80   void SelectPopupMenuItems(JNIEnv* env, jobject obj, jintArray indices);
  81
  82   void LoadUrl(
  83       JNIEnv* env, jobject obj,
  84       jstring url,
  85       jint load_url_type,
  86       jint transition_type,
  87       jint ua_override_option,
  88       jstring extra_headers,
  89       jbyteArray post_data,
  90       jstring base_url_for_data_url,
  91       jstring virtual_url_for_data_url,
  92       jboolean can_load_local_resources);
  93   base::android::ScopedJavaLocalRef<jstring> GetURL(JNIEnv* env, jobject) const;
  94   base::android::ScopedJavaLocalRef<jstring> GetTitle(
  95       JNIEnv* env, jobject obj) const;
  96   jboolean IsIncognito(JNIEnv* env, jobject obj);
  97   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
  98   jboolean OnTouchEvent(JNIEnv* env,
  99                         jobject obj,
 100                         jobject motion_event,
 101                         jlong time_ms,
 102                         jint android_action,
 103                         jint pointer_count,
 104                         jint history_size,
 105                         jint action_index,
 106                         jfloat pos_x_0,
 107                         jfloat pos_y_0,
 108                         jfloat pos_x_1,
 109                         jfloat pos_y_1,
 110                         jint pointer_id_0,
 111                         jint pointer_id_1,
 112                         jfloat touch_major_0,
 113                         jfloat touch_major_1);
 114   jboolean SendMouseMoveEvent(JNIEnv* env,
 115                               jobject obj,
 116                               jlong time_ms,
 117                               jfloat x,
 118                               jfloat y);
 119   jboolean SendMouseWheelEvent(JNIEnv* env,
 120                                jobject obj,
 121                                jlong time_ms,
 122                                jfloat x,
 123                                jfloat y,
 124                                jfloat vertical_axis);
 125   void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
 126                    jfloat x, jfloat y, jfloat hintx, jfloat hinty);
 127   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 128   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 129                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 130   void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
 131                   jfloat x, jfloat y, jfloat vx, jfloat vy);
 132   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 133   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 134                  jfloat x, jfloat y);
 135   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 136                  jfloat x, jfloat y) ;
 137   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 138                  jfloat x, jfloat y);
 139   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 140   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 141   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 142                jfloat x, jfloat y, jfloat delta);
 143   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 144                                 jfloat x1, jfloat y1,
 145                                 jfloat x2, jfloat y2);
 146   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 147
 148   void ResetGestureDetectors(JNIEnv* env, jobject obj);
 149   void IgnoreRemainingTouchEvents(JNIEnv* env, jobject obj);
 150   void OnWindowFocusLost(JNIEnv* env, jobject obj);
 151   void SetDoubleTapSupportForPageEnabled(JNIEnv* env,
 152                                          jobject obj,
 153                                          jboolean enabled);
 154   void SetDoubleTapSupportEnabled(JNIEnv* env, jobject obj, jboolean enabled);
 155   void SetMultiTouchZoomSupportEnabled(JNIEnv* env,
 156                                        jobject obj,
 157                                        jboolean enabled);
 158
 159   void LoadIfNecessary(JNIEnv* env, jobject obj);
 160   void RequestRestoreLoad(JNIEnv* env, jobject obj);
 161   void StopLoading(JNIEnv* env, jobject obj);
 162   void Reload(JNIEnv* env, jobject obj, jboolean check_for_repost);
 163   void ReloadIgnoringCache(JNIEnv* env, jobject obj, jboolean check_for_repost);
 164   void CancelPendingReload(JNIEnv* env, jobject obj);
 165   void ContinuePendingReload(JNIEnv* env, jobject obj);
 166   void ClearHistory(JNIEnv* env, jobject obj);
 167   void EvaluateJavaScript(JNIEnv* env,
 168                           jobject obj,
 169                           jstring script,
 170                           jobject callback,
 171                           jboolean start_renderer);
 172   int GetNativeImeAdapter(JNIEnv* env, jobject obj);
 173   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 174   void ScrollFocusedEditableNodeIntoView(JNIEnv* env, jobject obj);
 175
 176   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 177   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 178   void OnShow(JNIEnv* env, jobject obj);
 179   void OnHide(JNIEnv* env, jobject obj);
 180   void ClearSslPreferences(JNIEnv* env, jobject /* obj */);
 181   void SetUseDesktopUserAgent(JNIEnv* env,
 182                               jobject /* obj */,
 183                               jboolean state,
 184                               jboolean reload_on_state_change);
 185   bool GetUseDesktopUserAgent(JNIEnv* env, jobject /* obj */);
 186   void Show();
 187   void Hide();
 188   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 189                                               jobject obj,
 190                                               jboolean allow);
 191   void AddJavascriptInterface(JNIEnv* env,
 192                               jobject obj,
 193                               jobject object,
 194                               jstring name,
 195                               jclass safe_annotation_clazz,
 196                               jobject retained_object_set);
 197   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 198   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
 199   void GetDirectedNavigationHistory(JNIEnv* env,
 200                                     jobject obj,
 201                                     jobject history,
 202                                     jboolean is_forward,
 203                                     jint max_entries);
 204   base::android::ScopedJavaLocalRef<jstring>
 205       GetOriginalUrlForActiveNavigationEntry(JNIEnv* env, jobject obj);
 206   void UpdateVSyncParameters(JNIEnv* env, jobject obj, jlong timebase_micros,
 207                              jlong interval_micros);
 208   void OnVSync(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
 209   jboolean OnAnimate(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
 210   void WasResized(JNIEnv* env, jobject obj);
 211   jboolean IsRenderWidgetHostViewReady(JNIEnv* env, jobject obj);
 212   void ExitFullscreen(JNIEnv* env, jobject obj);
 213   void UpdateTopControlsState(JNIEnv* env,
 214                               jobject obj,
 215                               bool enable_hiding,
 216                               bool enable_showing,
 217                               bool animate);
 218   void ShowImeIfNeeded(JNIEnv* env, jobject obj);
 219
 220   void ShowInterstitialPage(JNIEnv* env,
 221                             jobject obj,
 222                             jstring jurl,
 223                             jint delegate);
 224   jboolean IsShowingInterstitialPage(JNIEnv* env, jobject obj);
 225
 226   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 227
 228   void ExtractSmartClipData(JNIEnv* env,
 229                             jobject obj,
 230                             jint x,
 231                             jint y,
 232                             jint width,
 233                             jint height);
 234
 235   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 236
 237   // --------------------------------------------------------------------------
 238   // Public methods that call to Java via JNI
 239   // --------------------------------------------------------------------------
 240
 241   void OnSmartClipDataExtracted(const base::string16& result);
 242
 243   // Creates a popup menu with |items|.
 244   // |multiple| defines if it should support multi-select.
 245   // If not |multiple|, |selected_item| sets the initially selected item.
 246   // Otherwise, item's "checked" flag selects it.
 247   void ShowSelectPopupMenu(const std::vector<MenuItem>& items,
 248                            int selected_item,
 249                            bool multiple);
 250
 251   void OnTabCrashed();
 252
 253   // All sizes and offsets are in CSS pixels as cached by the renderer.
 254   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 255                        float page_scale_factor,
 256                        const gfx::Vector2dF& page_scale_factor_limits,
 257                        const gfx::SizeF& content_size,
 258                        const gfx::SizeF& viewport_size,
 259                        const gfx::Vector2dF& controls_offset,
 260                        const gfx::Vector2dF& content_offset,
 261                        float overdraw_bottom_height);
 262
 263   void UpdateImeAdapter(long native_ime_adapter, int text_input_type,
 264                         const std::string& text,
 265                         int selection_start, int selection_end,
 266                         int composition_start, int composition_end,
 267                         bool show_ime_if_needed, bool require_ack);
 268   void SetTitle(const base::string16& title);
 269   void OnBackgroundColorChanged(SkColor color);
 270
 271   bool HasFocus();
 272   void ConfirmTouchEvent(InputEventAckState ack_result);
 273   void OnGestureEventAck(const blink::WebGestureEvent& event,
 274                          InputEventAckState ack_result);
 275   bool FilterInputEvent(const blink::WebInputEvent& event);
 276   void OnSelectionChanged(const std::string& text);
 277   void OnSelectionBoundsChanged(
 278       const ViewHostMsg_SelectionBounds_Params& params);
 279   void OnSelectionRootBoundsChanged(const gfx::Rect& bounds);
 280
 281   void StartContentIntent(const GURL& content_url);
 282
 283   // Shows the disambiguation popup
 284   // |target_rect|   --> window coordinates which |zoomed_bitmap| represents
 285   // |zoomed_bitmap| --> magnified image of potential touch targets
 286   void ShowDisambiguationPopup(
 287       const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap);
 288
 289   // Creates a java-side touch event, used for injecting touch event for
 290   // testing/benchmarking purposes
 291   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 292
 293   base::android::ScopedJavaLocalRef<jobject> GetContentVideoViewClient();
 294
 295   // Returns the context that the ContentViewCore was created with, it would
 296   // typically be an Activity context for an on screen view.
 297   base::android::ScopedJavaLocalRef<jobject> GetContext();
 298
 299   // Returns True if the given media should be blocked to load.
 300   bool ShouldBlockMediaRequest(const GURL& url);
 301
 302   void DidStopFlinging();
 303
 304   // --------------------------------------------------------------------------
 305   // Methods called from native code
 306   // --------------------------------------------------------------------------
 307
 308   gfx::Size GetPhysicalBackingSize() const;
 309   gfx::Size GetViewportSizeDip() const;
 310   gfx::Size GetViewportSizeOffsetDip() const;
 311   float GetOverdrawBottomHeightDip() const;
 312
 313   void AttachLayer(scoped_refptr<cc::Layer> layer);
 314   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 315   void AddBeginFrameSubscriber();
 316   void RemoveBeginFrameSubscriber();
 317   void SetNeedsAnimate();
 318
 319  private:
 320   class ContentViewUserData;
 321
 322   friend class ContentViewUserData;
 323   virtual ~ContentViewCoreImpl();
 324
 325   // NotificationObserver implementation.
 326   virtual void Observe(int type,
 327                        const NotificationSource& source,
 328                        const NotificationDetails& details) OVERRIDE;
 329
 330   // WebContentsObserver implementation.
 331   virtual void RenderViewReady() OVERRIDE;
 332   virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE;
 333
 334   // ui::GestureProviderClient implementation.
 335   virtual void OnGestureEvent(const ui::GestureEventData& gesture) OVERRIDE;
 336
 337   // --------------------------------------------------------------------------
 338   // Other private methods and data
 339   // --------------------------------------------------------------------------
 340
 341   void InitWebContents();
 342
 343   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 344
 345   blink::WebGestureEvent MakeGestureEvent(
 346       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 347
 348   void SendBeginFrame(base::TimeTicks frame_time);
 349
 350   gfx::Size GetViewportSizePix() const;
 351   gfx::Size GetViewportSizeOffsetPix() const;
 352
 353   void DeleteScaledSnapshotTexture();
 354
 355   void SendGestureEvent(const blink::WebGestureEvent& event);
 356
 357   // Update focus state of the RenderWidgetHostView.
 358   void SetFocusInternal(bool focused);
 359
 360   // Send device_orientation_ to renderer.
 361   void SendOrientationChangeEventInternal();
 362
 363   // Utility method for synthesizing a touch cancel event and dispatching it
 364   // through the touch pipeline.
 365   void CancelActiveTouchSequenceIfNecessary();
 366
 367   float dpi_scale() const { return dpi_scale_; }
 368
 369   // A weak reference to the Java ContentViewCore object.
 370   JavaObjectWeakGlobalRef java_ref_;
 371
 372   NotificationRegistrar notification_registrar_;
 373
 374   // Reference to the current WebContents used to determine how and what to
 375   // display in the ContentViewCore.
 376   WebContentsImpl* web_contents_;
 377
 378   // A compositor layer containing any layer that should be shown.
 379   scoped_refptr<cc::Layer> root_layer_;
 380
 381   // Device scale factor.
 382   float dpi_scale_;
 383
 384   // Variables used to keep track of frame timestamps and deadlines.
 385   base::TimeDelta vsync_interval_;
 386   base::TimeDelta expected_browser_composite_time_;
 387
 388   // The Android view that can be used to add and remove decoration layers
 389   // like AutofillPopup.
 390   ui::ViewAndroid* view_android_;
 391
 392   // The owning window that has a hold of main application activity.
 393   ui::WindowAndroid* window_android_;
 394
 395   // Provides gesture synthesis given a stream of touch events (derived from
 396   // Android MotionEvent's) and touch event acks.
 397   ui::FilteredGestureProvider gesture_provider_;
 398
 399   // The cache of device's current orientation set from Java side, this value
 400   // will be sent to Renderer once it is ready.
 401   int device_orientation_;
 402
 403   bool geolocation_needs_pause_;
 404
 405   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 406 };
 407
 408 bool RegisterContentViewCore(JNIEnv* env);
 409
 410 }  // namespace content
 411
 412 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_