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/gfx/rect.h"
  25 #include "ui/gfx/rect_f.h"
  26 #include "url/gurl.h"
  27
  28 namespace ui {
  29 class ViewAndroid;
  30 class WindowAndroid;
  31 }
  32
  33 namespace content {
  34 class RenderWidgetHostViewAndroid;
  35 struct MenuItem;
  36
  37 // TODO(jrg): this is a shell.  Upstream the rest.
  38 class ContentViewCoreImpl : public ContentViewCore,
  39                             public NotificationObserver,
  40                             public WebContentsObserver {
  41  public:
  42   static ContentViewCoreImpl* FromWebContents(WebContents* web_contents);
  43   ContentViewCoreImpl(JNIEnv* env,
  44                       jobject obj,
  45                       bool hardware_accelerated,
  46                       WebContents* web_contents,
  47                       ui::ViewAndroid* view_android,
  48                       ui::WindowAndroid* window_android);
  49
  50   // ContentViewCore implementation.
  51   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() OVERRIDE;
  52   virtual WebContents* GetWebContents() const OVERRIDE;
  53   virtual ui::ViewAndroid* GetViewAndroid() const OVERRIDE;
  54   virtual ui::WindowAndroid* GetWindowAndroid() const OVERRIDE;
  55   virtual scoped_refptr<cc::Layer> GetLayer() const OVERRIDE;
  56   virtual void LoadUrl(NavigationController::LoadURLParams& params) OVERRIDE;
  57   virtual jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj) OVERRIDE;
  58   virtual void ShowPastePopup(int x, int y) OVERRIDE;
  59   virtual unsigned int GetScaledContentTexture(
  60       float scale,
  61       gfx::Size* out_size) OVERRIDE;
  62   virtual float GetDpiScale() const OVERRIDE;
  63   virtual void RequestContentClipping(const gfx::Rect& clipping,
  64                                       const gfx::Size& content_size) OVERRIDE;
  65   virtual void PauseVideo() OVERRIDE;
  66   virtual void ResumeVideo() 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 SendTouchEvent(JNIEnv* env,
  99                           jobject obj,
 100                           jlong time_ms,
 101                           jint type,
 102                           jobjectArray pts);
 103   jboolean SendMouseMoveEvent(JNIEnv* env,
 104                               jobject obj,
 105                               jlong time_ms,
 106                               jfloat x,
 107                               jfloat y);
 108   jboolean SendMouseWheelEvent(JNIEnv* env,
 109                                jobject obj,
 110                                jlong time_ms,
 111                                jfloat x,
 112                                jfloat y,
 113                                jfloat vertical_axis);
 114   void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
 115                    jfloat x, jfloat y, jfloat hintx, jfloat hinty);
 116   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 117   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 118                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 119   void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
 120                   jfloat x, jfloat y, jfloat vx, jfloat vy);
 121   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 122   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 123                  jfloat x, jfloat y,
 124                  jboolean disambiguation_popup_tap);
 125   void SingleTapUnconfirmed(JNIEnv* env, jobject obj, jlong time_ms,
 126                             jfloat x, jfloat y);
 127   void ShowPressState(JNIEnv* env, jobject obj, jlong time_ms,
 128                       jfloat x, jfloat y);
 129   void TapCancel(JNIEnv* env, jobject obj, jlong time_ms,
 130                  jfloat x, jfloat y);
 131   void TapDown(JNIEnv* env, jobject obj, jlong time_ms,
 132                jfloat x, jfloat y);
 133   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 134                  jfloat x, jfloat y) ;
 135   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 136                  jfloat x, jfloat y,
 137                  jboolean disambiguation_popup_tap);
 138   void LongTap(JNIEnv* env, jobject obj, jlong time_ms,
 139                jfloat x, jfloat y,
 140                jboolean disambiguation_popup_tap);
 141   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 142   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 143   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 144                jfloat x, jfloat y, jfloat delta);
 145   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 146                                 jfloat x1, jfloat y1,
 147                                 jfloat x2, jfloat y2);
 148   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 149
 150   void LoadIfNecessary(JNIEnv* env, jobject obj);
 151   void RequestRestoreLoad(JNIEnv* env, jobject obj);
 152   void StopLoading(JNIEnv* env, jobject obj);
 153   void Reload(JNIEnv* env, jobject obj, jboolean check_for_repost);
 154   void ReloadIgnoringCache(JNIEnv* env, jobject obj, jboolean check_for_repost);
 155   void CancelPendingReload(JNIEnv* env, jobject obj);
 156   void ContinuePendingReload(JNIEnv* env, jobject obj);
 157   void ClearHistory(JNIEnv* env, jobject obj);
 158   void EvaluateJavaScript(JNIEnv* env,
 159                           jobject obj,
 160                           jstring script,
 161                           jobject callback,
 162                           jboolean start_renderer);
 163   int GetNativeImeAdapter(JNIEnv* env, jobject obj);
 164   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 165   void ScrollFocusedEditableNodeIntoView(JNIEnv* env, jobject obj);
 166   void UndoScrollFocusedEditableNodeIntoView(JNIEnv* env, jobject obj);
 167
 168   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 169   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 170   void OnShow(JNIEnv* env, jobject obj);
 171   void OnHide(JNIEnv* env, jobject obj);
 172   void ClearSslPreferences(JNIEnv* env, jobject /* obj */);
 173   void SetUseDesktopUserAgent(JNIEnv* env,
 174                               jobject /* obj */,
 175                               jboolean state,
 176                               jboolean reload_on_state_change);
 177   bool GetUseDesktopUserAgent(JNIEnv* env, jobject /* obj */);
 178   void Show();
 179   void Hide();
 180   void AddJavascriptInterface(JNIEnv* env,
 181                               jobject obj,
 182                               jobject object,
 183                               jstring name,
 184                               jclass safe_annotation_clazz,
 185                               jobject retained_object_set);
 186   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 187   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
 188   void GetDirectedNavigationHistory(JNIEnv* env,
 189                                     jobject obj,
 190                                     jobject history,
 191                                     jboolean is_forward,
 192                                     jint max_entries);
 193   base::android::ScopedJavaLocalRef<jstring>
 194       GetOriginalUrlForActiveNavigationEntry(JNIEnv* env, jobject obj);
 195   void UpdateVSyncParameters(JNIEnv* env, jobject obj, jlong timebase_micros,
 196                              jlong interval_micros);
 197   void OnVSync(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
 198   jboolean OnAnimate(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
 199   jboolean PopulateBitmapFromCompositor(JNIEnv* env,
 200                                         jobject obj,
 201                                         jobject jbitmap);
 202   void WasResized(JNIEnv* env, jobject obj);
 203   jboolean IsRenderWidgetHostViewReady(JNIEnv* env, jobject obj);
 204   void ExitFullscreen(JNIEnv* env, jobject obj);
 205   void UpdateTopControlsState(JNIEnv* env,
 206                               jobject obj,
 207                               bool enable_hiding,
 208                               bool enable_showing,
 209                               bool animate);
 210   void ShowImeIfNeeded(JNIEnv* env, jobject obj);
 211
 212   void ShowInterstitialPage(JNIEnv* env,
 213                             jobject obj,
 214                             jstring jurl,
 215                             jint delegate);
 216   jboolean IsShowingInterstitialPage(JNIEnv* env, jobject obj);
 217
 218   void AttachExternalVideoSurface(JNIEnv* env,
 219                                   jobject obj,
 220                                   jint player_id,
 221                                   jobject jsurface);
 222   void DetachExternalVideoSurface(JNIEnv* env, jobject obj, jint player_id);
 223   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 224   void SendActionAfterDoubleTapUma(JNIEnv* env,
 225                                    jobject obj,
 226                                    jint type,
 227                                    jboolean has_delay,
 228                                    jint count);
 229   void SendSingleTapUma(JNIEnv* env, jobject obj, jint type, jint count);
 230
 231   void ExtractSmartClipData(JNIEnv* env,
 232                             jobject obj,
 233                             jint x,
 234                             jint y,
 235                             jint width,
 236                             jint height);
 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(int 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 UnhandledFlingStartEvent();
 274   void OnScrollUpdateGestureConsumed();
 275   void HasTouchEventHandlers(bool need_touch_events);
 276   void OnSelectionChanged(const std::string& text);
 277   void OnSelectionBoundsChanged(
 278       const ViewHostMsg_SelectionBounds_Params& params);
 279
 280   void StartContentIntent(const GURL& content_url);
 281
 282   // Shows the disambiguation popup
 283   // |target_rect|   --> window coordinates which |zoomed_bitmap| represents
 284   // |zoomed_bitmap| --> magnified image of potential touch targets
 285   void ShowDisambiguationPopup(
 286       const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap);
 287
 288   // Creates a java-side touch event, used for injecting touch event for
 289   // testing/benchmarking purposes
 290   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 291
 292   // Notifies the java object about the external surface, requesting for one if
 293   // necessary.
 294   void NotifyExternalSurface(
 295       int player_id, bool is_request, const gfx::RectF& rect);
 296
 297   base::android::ScopedJavaLocalRef<jobject> GetContentVideoViewClient();
 298
 299   // Returns the context that the ContentViewCore was created with, it would
 300   // typically be an Activity context for an on screen view.
 301   base::android::ScopedJavaLocalRef<jobject> GetContext();
 302
 303   // Returns True if the given media should be blocked to load.
 304   bool ShouldBlockMediaRequest(const GURL& url);
 305
 306   // --------------------------------------------------------------------------
 307   // Methods called from native code
 308   // --------------------------------------------------------------------------
 309
 310   gfx::Size GetPhysicalBackingSize() const;
 311   gfx::Size GetViewportSizeDip() const;
 312   gfx::Size GetViewportSizeOffsetDip() const;
 313   float GetOverdrawBottomHeightDip() const;
 314
 315   void AttachLayer(scoped_refptr<cc::Layer> layer);
 316   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 317   void AddBeginFrameSubscriber();
 318   void RemoveBeginFrameSubscriber();
 319   void SetNeedsAnimate();
 320
 321  private:
 322   class ContentViewUserData;
 323
 324   friend class ContentViewUserData;
 325   virtual ~ContentViewCoreImpl();
 326
 327   // NotificationObserver implementation.
 328   virtual void Observe(int type,
 329                        const NotificationSource& source,
 330                        const NotificationDetails& details) OVERRIDE;
 331
 332   // WebContentsObserver implementation.
 333   virtual void RenderViewReady() OVERRIDE;
 334
 335   // --------------------------------------------------------------------------
 336   // Other private methods and data
 337   // --------------------------------------------------------------------------
 338
 339   void InitWebContents();
 340
 341   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 342
 343   float GetTouchPaddingDip();
 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   // A weak reference to the Java ContentViewCore object.
 364   JavaObjectWeakGlobalRef java_ref_;
 365
 366   NotificationRegistrar notification_registrar_;
 367
 368   // Reference to the current WebContents used to determine how and what to
 369   // display in the ContentViewCore.
 370   WebContentsImpl* web_contents_;
 371
 372   // A compositor layer containing any layer that should be shown.
 373   scoped_refptr<cc::Layer> root_layer_;
 374
 375   // Device scale factor.
 376   float dpi_scale_;
 377
 378   // Variables used to keep track of frame timestamps and deadlines.
 379   base::TimeDelta vsync_interval_;
 380   base::TimeDelta expected_browser_composite_time_;
 381
 382   // The Android view that can be used to add and remove decoration layers
 383   // like AutofillPopup.
 384   ui::ViewAndroid* view_android_;
 385
 386   // The owning window that has a hold of main application activity.
 387   ui::WindowAndroid* window_android_;
 388
 389   // The cache of device's current orientation set from Java side, this value
 390   // will be sent to Renderer once it is ready.
 391   int device_orientation_;
 392
 393   bool geolocation_needs_pause_;
 394
 395   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 396 };
 397
 398 bool RegisterContentViewCore(JNIEnv* env);
 399
 400 }  // namespace content
 401
 402 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_