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_weak_ref.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/i18n/rtl.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/process/process.h"
  16 #include "content/browser/android/overscroll_refresh.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/web_contents_observer.h"
  21 #include "third_party/WebKit/public/web/WebInputEvent.h"
  22 #include "ui/gfx/geometry/rect.h"
  23 #include "ui/gfx/geometry/rect_f.h"
  24 #include "url/gurl.h"
  25
  26 namespace ui {
  27 class ViewAndroid;
  28 class WindowAndroid;
  29 }
  30
  31 namespace content {
  32
  33 class GinJavaBridgeDispatcherHost;
  34 class RenderFrameHost;
  35 class RenderWidgetHostViewAndroid;
  36 struct MenuItem;
  37
  38 class ContentViewCoreImpl : public ContentViewCore,
  39                             public OverscrollRefreshHandler,
  40                             public WebContentsObserver {
  41  public:
  42   static ContentViewCoreImpl* FromWebContents(WebContents* web_contents);
  43   ContentViewCoreImpl(JNIEnv* env,
  44                       jobject obj,
  45                       WebContents* web_contents,
  46                       jobject view_android,
  47                       ui::WindowAndroid* window_android,
  48                       jobject java_bridge_retained_object_set);
  49
  50   // ContentViewCore implementation.
  51   base::android::ScopedJavaLocalRef<jobject> GetJavaObject() override;
  52   WebContents* GetWebContents() const override;
  53   ui::ViewAndroid* GetViewAndroid() const override;
  54   ui::WindowAndroid* GetWindowAndroid() const override;
  55   const scoped_refptr<cc::Layer>& GetLayer() const override;
  56   void ShowPastePopup(int x, int y) override;
  57   void GetScaledContentBitmap(
  58       float scale,
  59       SkColorType preferred_color_type,
  60       const gfx::Rect& src_subrect,
  61       ReadbackRequestCallback& result_callback) override;
  62   float GetDpiScale() const override;
  63   void PauseOrResumeGeolocation(bool should_pause) override;
  64   void RequestTextSurroundingSelection(
  65       int max_length,
  66       const base::Callback<void(const base::string16& content,
  67                                 int start_offset,
  68                                 int end_offset)>& callback) override;
  69
  70   // --------------------------------------------------------------------------
  71   // Methods called from Java via JNI
  72   // --------------------------------------------------------------------------
  73
  74   base::android::ScopedJavaLocalRef<jobject> GetWebContentsAndroid(JNIEnv* env,
  75                                                                    jobject obj);
  76   base::android::ScopedJavaLocalRef<jobject> GetJavaWindowAndroid(JNIEnv* env,
  77                                                                   jobject obj);
  78
  79   void OnJavaContentViewCoreDestroyed(JNIEnv* env, jobject obj);
  80
  81   // Notifies the ContentViewCore that items were selected in the currently
  82   // showing select popup.
  83   void SelectPopupMenuItems(JNIEnv* env, jobject obj,
  84                             jlong selectPopupSourceFrame,
  85                             jintArray indices);
  86
  87   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
  88   jboolean OnTouchEvent(JNIEnv* env,
  89                         jobject obj,
  90                         jobject motion_event,
  91                         jlong time_ms,
  92                         jint android_action,
  93                         jint pointer_count,
  94                         jint history_size,
  95                         jint action_index,
  96                         jfloat pos_x_0,
  97                         jfloat pos_y_0,
  98                         jfloat pos_x_1,
  99                         jfloat pos_y_1,
 100                         jint pointer_id_0,
 101                         jint pointer_id_1,
 102                         jfloat touch_major_0,
 103                         jfloat touch_major_1,
 104                         jfloat touch_minor_0,
 105                         jfloat touch_minor_1,
 106                         jfloat orientation_0,
 107                         jfloat orientation_1,
 108                         jfloat raw_pos_x,
 109                         jfloat raw_pos_y,
 110                         jint android_tool_type_0,
 111                         jint android_tool_type_1,
 112                         jint android_button_state,
 113                         jint android_meta_state,
 114                         jboolean is_touch_handle_event);
 115   jboolean SendMouseMoveEvent(JNIEnv* env,
 116                               jobject obj,
 117                               jlong time_ms,
 118                               jfloat x,
 119                               jfloat y);
 120   jboolean SendMouseWheelEvent(JNIEnv* env,
 121                                jobject obj,
 122                                jlong time_ms,
 123                                jfloat x,
 124                                jfloat y,
 125                                jfloat ticks_x,
 126                                jfloat ticks_y,
 127                                jfloat pixels_per_tick);
 128   void ScrollBegin(JNIEnv* env,
 129                    jobject obj,
 130                    jlong time_ms,
 131                    jfloat x,
 132                    jfloat y,
 133                    jfloat hintx,
 134                    jfloat hinty,
 135                    jboolean target_viewport);
 136   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 137   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 138                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 139   void FlingStart(JNIEnv* env,
 140                   jobject obj,
 141                   jlong time_ms,
 142                   jfloat x,
 143                   jfloat y,
 144                   jfloat vx,
 145                   jfloat vy,
 146                   jboolean target_viewport);
 147   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 148   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 149                  jfloat x, jfloat y);
 150   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 151                  jfloat x, jfloat y) ;
 152   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 153                  jfloat x, jfloat y);
 154   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 155   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 156   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 157                jfloat x, jfloat y, jfloat delta);
 158   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 159                                 jfloat x1, jfloat y1,
 160                                 jfloat x2, jfloat y2);
 161   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 162   void DismissTextHandles(JNIEnv* env, jobject obj);
 163   void SetTextHandlesTemporarilyHidden(JNIEnv* env,
 164                                        jobject obj,
 165                                        jboolean hidden);
 166
 167   void ResetGestureDetection(JNIEnv* env, jobject obj);
 168   void SetDoubleTapSupportEnabled(JNIEnv* env, jobject obj, jboolean enabled);
 169   void SetMultiTouchZoomSupportEnabled(JNIEnv* env,
 170                                        jobject obj,
 171                                        jboolean enabled);
 172
 173   long GetNativeImeAdapter(JNIEnv* env, jobject obj);
 174   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 175
 176   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 177   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 178   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 179                                               jobject obj,
 180                                               jboolean allow);
 181   void AddJavascriptInterface(JNIEnv* env,
 182                               jobject obj,
 183                               jobject object,
 184                               jstring name,
 185                               jclass safe_annotation_clazz);
 186   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 187   void WasResized(JNIEnv* env, jobject obj);
 188
 189   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 190
 191   void SetTextTrackSettings(JNIEnv* env,
 192                             jobject obj,
 193                             jboolean textTracksEnabled,
 194                             jstring textTrackBackgroundColor,
 195                             jstring textTrackFontFamily,
 196                             jstring textTrackFontStyle,
 197                             jstring textTrackFontVariant,
 198                             jstring textTrackTextColor,
 199                             jstring textTrackTextShadow,
 200                             jstring textTrackTextSize);
 201
 202   void ExtractSmartClipData(JNIEnv* env,
 203                             jobject obj,
 204                             jint x,
 205                             jint y,
 206                             jint width,
 207                             jint height);
 208
 209   void SetBackgroundOpaque(JNIEnv* env, jobject jobj, jboolean opaque);
 210
 211   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 212
 213   // --------------------------------------------------------------------------
 214   // Public methods that call to Java via JNI
 215   // --------------------------------------------------------------------------
 216
 217   void OnSmartClipDataExtracted(const base::string16& text,
 218                                 const base::string16& html,
 219                                 const gfx::Rect& clip_rect);
 220
 221   // Creates a popup menu with |items|.
 222   // |multiple| defines if it should support multi-select.
 223   // If not |multiple|, |selected_item| sets the initially selected item.
 224   // Otherwise, item's "checked" flag selects it.
 225   void ShowSelectPopupMenu(RenderFrameHost* frame,
 226                            const gfx::Rect& bounds,
 227                            const std::vector<MenuItem>& items,
 228                            int selected_item,
 229                            bool multiple);
 230   // Hides a visible popup menu.
 231   void HideSelectPopupMenu();
 232
 233   // All sizes and offsets are in CSS pixels as cached by the renderer.
 234   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 235                        float page_scale_factor,
 236                        const gfx::Vector2dF& page_scale_factor_limits,
 237                        const gfx::SizeF& content_size,
 238                        const gfx::SizeF& viewport_size,
 239                        const gfx::Vector2dF& controls_offset,
 240                        const gfx::Vector2dF& content_offset,
 241                        bool is_mobile_optimized_hint);
 242
 243   void ForceUpdateImeAdapter(long native_ime_adapter);
 244   void UpdateImeAdapter(long native_ime_adapter,
 245                         int text_input_type,
 246                         int text_input_flags,
 247                         const std::string& text,
 248                         int selection_start,
 249                         int selection_end,
 250                         int composition_start,
 251                         int composition_end,
 252                         bool show_ime_if_needed,
 253                         bool is_non_ime_change);
 254   void SetTitle(const base::string16& title);
 255   void OnBackgroundColorChanged(SkColor color);
 256
 257   bool HasFocus();
 258   void RequestDisallowInterceptTouchEvent();
 259   void OnGestureEventAck(const blink::WebGestureEvent& event,
 260                          InputEventAckState ack_result);
 261   bool FilterInputEvent(const blink::WebInputEvent& event);
 262   void OnSelectionChanged(const std::string& text);
 263   void OnSelectionEvent(ui::SelectionEventType event,
 264                         const gfx::PointF& selection_anchor,
 265                         const gfx::RectF& selection_rect);
 266
 267   void StartContentIntent(const GURL& content_url);
 268
 269   // Shows the disambiguation popup
 270   // |rect_pixels|   --> window coordinates which |zoomed_bitmap| represents
 271   // |zoomed_bitmap| --> magnified image of potential touch targets
 272   void ShowDisambiguationPopup(
 273       const gfx::Rect& rect_pixels, const SkBitmap& zoomed_bitmap);
 274
 275   // Creates a java-side touch event, used for injecting motion events for
 276   // testing/benchmarking purposes.
 277   base::android::ScopedJavaLocalRef<jobject> CreateMotionEventSynthesizer();
 278
 279   // Returns True if the given media should be blocked to load.
 280   bool ShouldBlockMediaRequest(const GURL& url);
 281
 282   void DidStopFlinging();
 283
 284   // Returns the context with which the ContentViewCore was created, typically
 285   // the Activity context.
 286   base::android::ScopedJavaLocalRef<jobject> GetContext() const;
 287
 288   // Returns the viewport size after accounting for the viewport offset.
 289   gfx::Size GetViewSize() const;
 290
 291   void SetAccessibilityEnabledInternal(bool enabled);
 292
 293   bool IsFullscreenRequiredForOrientationLock() const;
 294
 295   // --------------------------------------------------------------------------
 296   // Methods called from native code
 297   // --------------------------------------------------------------------------
 298
 299   gfx::Size GetPhysicalBackingSize() const;
 300   gfx::Size GetViewportSizeDip() const;
 301   bool DoTopControlsShrinkBlinkSize() const;
 302   float GetTopControlsHeightDip() const;
 303
 304   void AttachLayer(scoped_refptr<cc::Layer> layer);
 305   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 306
 307   void MoveRangeSelectionExtent(const gfx::PointF& extent);
 308
 309   void SelectBetweenCoordinates(const gfx::PointF& base,
 310                                 const gfx::PointF& extent);
 311
 312   void OnShowUnhandledTapUIIfNeeded(int x_dip, int y_dip);
 313
 314   // returns page density (dpi) X page scale
 315   float GetScaleFactor() const;
 316  private:
 317   class ContentViewUserData;
 318
 319   friend class ContentViewUserData;
 320   ~ContentViewCoreImpl() override;
 321
 322   // WebContentsObserver implementation.
 323   void RenderViewReady() override;
 324   void RenderViewHostChanged(RenderViewHost* old_host,
 325                              RenderViewHost* new_host) override;
 326   void WebContentsDestroyed() override;
 327
 328   // OverscrollRefreshHandler implementation.
 329   bool PullStart() override;
 330   void PullUpdate(float delta) override;
 331   void PullRelease(bool allow_refresh) override;
 332   void PullReset() override;
 333
 334   // --------------------------------------------------------------------------
 335   // Other private methods and data
 336   // --------------------------------------------------------------------------
 337
 338   void InitWebContents();
 339
 340   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid() const;
 341
 342   blink::WebGestureEvent MakeGestureEvent(
 343       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 344
 345   gfx::Size GetViewportSizePix() const;
 346   int GetTopControlsHeightPix() const;
 347
 348   void SendGestureEvent(const blink::WebGestureEvent& event);
 349
 350   // Update focus state of the RenderWidgetHostView.
 351   void SetFocusInternal(bool focused);
 352
 353   // Send device_orientation_ to renderer.
 354   void SendOrientationChangeEventInternal();
 355
 356   float dpi_scale() const { return dpi_scale_; }
 357
 358   // A weak reference to the Java ContentViewCore object.
 359   JavaObjectWeakGlobalRef java_ref_;
 360
 361   // Reference to the current WebContents used to determine how and what to
 362   // display in the ContentViewCore.
 363   WebContentsImpl* web_contents_;
 364
 365   // A compositor layer containing any layer that should be shown.
 366   scoped_refptr<cc::Layer> root_layer_;
 367
 368   // Page scale factor.
 369   float page_scale_;
 370
 371   // The Android view that can be used to add and remove decoration layers
 372   // like AutofillPopup.
 373   scoped_ptr<ui::ViewAndroid> view_android_;
 374
 375   // Device scale factor.
 376   const float dpi_scale_;
 377
 378   // The owning window that has a hold of main application activity.
 379   ui::WindowAndroid* window_android_;
 380
 381   // The cache of device's current orientation set from Java side, this value
 382   // will be sent to Renderer once it is ready.
 383   int device_orientation_;
 384
 385   bool accessibility_enabled_;
 386
 387   // Manages injecting Java objects.
 388   scoped_refptr<GinJavaBridgeDispatcherHost> java_bridge_dispatcher_host_;
 389
 390   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 391 };
 392
 393 bool RegisterContentViewCore(JNIEnv* env);
 394
 395 }  // namespace content
 396
 397 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_