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