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 color_type,
  60       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
  77   void OnJavaContentViewCoreDestroyed(JNIEnv* env, jobject obj);
  78
  79   // Notifies the ContentViewCore that items were selected in the currently
  80   // showing select popup.
  81   void SelectPopupMenuItems(JNIEnv* env, jobject obj,
  82                             jlong selectPopupSourceFrame,
  83                             jintArray indices);
  84
  85   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
  86   jboolean OnTouchEvent(JNIEnv* env,
  87                         jobject obj,
  88                         jobject motion_event,
  89                         jlong time_ms,
  90                         jint android_action,
  91                         jint pointer_count,
  92                         jint history_size,
  93                         jint action_index,
  94                         jfloat pos_x_0,
  95                         jfloat pos_y_0,
  96                         jfloat pos_x_1,
  97                         jfloat pos_y_1,
  98                         jint pointer_id_0,
  99                         jint pointer_id_1,
 100                         jfloat touch_major_0,
 101                         jfloat touch_major_1,
 102                         jfloat touch_minor_0,
 103                         jfloat touch_minor_1,
 104                         jfloat orientation_0,
 105                         jfloat orientation_1,
 106                         jfloat raw_pos_x,
 107                         jfloat raw_pos_y,
 108                         jint android_tool_type_0,
 109                         jint android_tool_type_1,
 110                         jint android_button_state,
 111                         jint android_meta_state,
 112                         jboolean is_touch_handle_event);
 113   jboolean SendMouseMoveEvent(JNIEnv* env,
 114                               jobject obj,
 115                               jlong time_ms,
 116                               jfloat x,
 117                               jfloat y);
 118   jboolean SendMouseWheelEvent(JNIEnv* env,
 119                                jobject obj,
 120                                jlong time_ms,
 121                                jfloat x,
 122                                jfloat y,
 123                                jfloat vertical_axis,
 124                                jfloat horizontal_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   void DismissTextHandles(JNIEnv* env, jobject obj);
 148   void SetTextHandlesTemporarilyHidden(JNIEnv* env,
 149                                        jobject obj,
 150                                        jboolean hidden);
 151
 152   void ResetGestureDetection(JNIEnv* env, jobject obj);
 153   void SetDoubleTapSupportEnabled(JNIEnv* env, jobject obj, jboolean enabled);
 154   void SetMultiTouchZoomSupportEnabled(JNIEnv* env,
 155                                        jobject obj,
 156                                        jboolean enabled);
 157
 158   long GetNativeImeAdapter(JNIEnv* env, jobject obj);
 159   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 160
 161   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 162   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 163   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 164                                               jobject obj,
 165                                               jboolean allow);
 166   void AddJavascriptInterface(JNIEnv* env,
 167                               jobject obj,
 168                               jobject object,
 169                               jstring name,
 170                               jclass safe_annotation_clazz);
 171   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 172   void WasResized(JNIEnv* env, jobject obj);
 173
 174   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 175
 176   void SetTextTrackSettings(JNIEnv* env,
 177                             jobject obj,
 178                             jstring textTrackBackgroundColor,
 179                             jstring textTrackFontFamily,
 180                             jstring textTrackFontStyle,
 181                             jstring textTrackFontVariant,
 182                             jstring textTrackTextColor,
 183                             jstring textTrackTextShadow,
 184                             jstring textTrackTextSize);
 185
 186   void ExtractSmartClipData(JNIEnv* env,
 187                             jobject obj,
 188                             jint x,
 189                             jint y,
 190                             jint width,
 191                             jint height);
 192
 193   void SetBackgroundOpaque(JNIEnv* env, jobject jobj, jboolean opaque);
 194   void SetDrawsContent(JNIEnv* env, jobject jobj, jboolean draws);
 195
 196   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 197
 198   // --------------------------------------------------------------------------
 199   // Public methods that call to Java via JNI
 200   // --------------------------------------------------------------------------
 201
 202   void OnSmartClipDataExtracted(const base::string16& text,
 203                                 const base::string16& html,
 204                                 const gfx::Rect& clip_rect);
 205
 206   // Creates a popup menu with |items|.
 207   // |multiple| defines if it should support multi-select.
 208   // If not |multiple|, |selected_item| sets the initially selected item.
 209   // Otherwise, item's "checked" flag selects it.
 210   void ShowSelectPopupMenu(RenderFrameHost* frame,
 211                            const gfx::Rect& bounds,
 212                            const std::vector<MenuItem>& items,
 213                            int selected_item,
 214                            bool multiple);
 215   // Hides a visible popup menu.
 216   void HideSelectPopupMenu();
 217
 218   // All sizes and offsets are in CSS pixels as cached by the renderer.
 219   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 220                        float page_scale_factor,
 221                        const gfx::Vector2dF& page_scale_factor_limits,
 222                        const gfx::SizeF& content_size,
 223                        const gfx::SizeF& viewport_size,
 224                        const gfx::Vector2dF& controls_offset,
 225                        const gfx::Vector2dF& content_offset,
 226                        bool is_mobile_optimized_hint);
 227
 228   void UpdateImeAdapter(long native_ime_adapter,
 229                         int text_input_type,
 230                         int text_input_flags,
 231                         const std::string& text,
 232                         int selection_start,
 233                         int selection_end,
 234                         int composition_start,
 235                         int composition_end,
 236                         bool show_ime_if_needed,
 237                         bool is_non_ime_change);
 238   void SetTitle(const base::string16& title);
 239   void OnBackgroundColorChanged(SkColor color);
 240
 241   bool HasFocus();
 242   void OnGestureEventAck(const blink::WebGestureEvent& event,
 243                          InputEventAckState ack_result);
 244   InputEventAckState FilterInputEvent(const blink::WebInputEvent& event);
 245   void OnSelectionChanged(const std::string& text);
 246   void OnSelectionEvent(ui::SelectionEventType event,
 247                         const gfx::PointF& selection_anchor,
 248                         const gfx::RectF& selection_rect);
 249   scoped_ptr<ui::TouchHandleDrawable> CreatePopupTouchHandleDrawable();
 250
 251   void StartContentIntent(const GURL& content_url);
 252
 253   // Shows the disambiguation popup
 254   // |rect_pixels|   --> window coordinates which |zoomed_bitmap| represents
 255   // |zoomed_bitmap| --> magnified image of potential touch targets
 256   void ShowDisambiguationPopup(
 257       const gfx::Rect& rect_pixels, const SkBitmap& zoomed_bitmap);
 258
 259   // Creates a java-side touch event, used for injecting touch event for
 260   // testing/benchmarking purposes
 261   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 262
 263   // Returns True if the given media should be blocked to load.
 264   bool ShouldBlockMediaRequest(const GURL& url);
 265
 266   void DidStopFlinging();
 267
 268   // Returns the context with which the ContentViewCore was created, typically
 269   // the Activity context.
 270   base::android::ScopedJavaLocalRef<jobject> GetContext() const;
 271
 272   // Returns the viewport size after accounting for the viewport offset.
 273   gfx::Size GetViewSize() const;
 274
 275   void SetAccessibilityEnabledInternal(bool enabled);
 276
 277   bool IsFullscreenRequiredForOrientationLock() const;
 278
 279   // --------------------------------------------------------------------------
 280   // Methods called from native code
 281   // --------------------------------------------------------------------------
 282
 283   gfx::Size GetPhysicalBackingSize() const;
 284   gfx::Size GetViewportSizeDip() const;
 285   bool DoTopControlsShrinkBlinkSize() const;
 286   float GetTopControlsHeightDip() const;
 287
 288   void AttachLayer(scoped_refptr<cc::Layer> layer);
 289   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 290
 291   void MoveRangeSelectionExtent(const gfx::PointF& extent);
 292
 293   void SelectBetweenCoordinates(const gfx::PointF& base,
 294                                 const gfx::PointF& extent);
 295
 296   void OnShowUnhandledTapUIIfNeeded(int x_dip, int y_dip);
 297
 298  private:
 299   class ContentViewUserData;
 300
 301   friend class ContentViewUserData;
 302   ~ContentViewCoreImpl() override;
 303
 304   // WebContentsObserver implementation.
 305   void RenderViewReady() override;
 306   void RenderViewHostChanged(RenderViewHost* old_host,
 307                              RenderViewHost* new_host) override;
 308   void WebContentsDestroyed() override;
 309
 310   // OverscrollRefreshHandler implementation.
 311   bool PullStart() override;
 312   void PullUpdate(float delta) override;
 313   void PullRelease(bool allow_refresh) override;
 314   void PullReset() override;
 315
 316   // --------------------------------------------------------------------------
 317   // Other private methods and data
 318   // --------------------------------------------------------------------------
 319
 320   void InitWebContents();
 321
 322   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid() const;
 323
 324   blink::WebGestureEvent MakeGestureEvent(
 325       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 326
 327   gfx::Size GetViewportSizePix() const;
 328   int GetTopControlsHeightPix() const;
 329
 330   void SendGestureEvent(const blink::WebGestureEvent& event);
 331
 332   // Update focus state of the RenderWidgetHostView.
 333   void SetFocusInternal(bool focused);
 334
 335   // Send device_orientation_ to renderer.
 336   void SendOrientationChangeEventInternal();
 337
 338   float dpi_scale() const { return dpi_scale_; }
 339
 340   // A weak reference to the Java ContentViewCore object.
 341   JavaObjectWeakGlobalRef java_ref_;
 342
 343   // Reference to the current WebContents used to determine how and what to
 344   // display in the ContentViewCore.
 345   WebContentsImpl* web_contents_;
 346
 347   // A compositor layer containing any layer that should be shown.
 348   scoped_refptr<cc::Layer> root_layer_;
 349
 350   // Device scale factor.
 351   float dpi_scale_;
 352
 353   // The Android view that can be used to add and remove decoration layers
 354   // like AutofillPopup.
 355   scoped_ptr<ui::ViewAndroid> view_android_;
 356
 357   // The owning window that has a hold of main application activity.
 358   ui::WindowAndroid* window_android_;
 359
 360   // The cache of device's current orientation set from Java side, this value
 361   // will be sent to Renderer once it is ready.
 362   int device_orientation_;
 363
 364   bool accessibility_enabled_;
 365
 366   // Manages injecting Java objects.
 367   scoped_refptr<GinJavaBridgeDispatcherHost> java_bridge_dispatcher_host_;
 368
 369   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 370 };
 371
 372 bool RegisterContentViewCore(JNIEnv* env);
 373
 374 }  // namespace content
 375
 376 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_