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 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       const base::Callback<void(bool, const SkBitmap&)>& result_callback)
  61       override;
  62   virtual float GetDpiScale() const override;
  63   virtual void PauseOrResumeGeolocation(bool should_pause) override;
  64   virtual 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   void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
 125                    jfloat x, jfloat y, jfloat hintx, jfloat hinty);
 126   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 127   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 128                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 129   void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
 130                   jfloat x, jfloat y, jfloat vx, jfloat vy);
 131   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 132   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 133                  jfloat x, jfloat y);
 134   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 135                  jfloat x, jfloat y) ;
 136   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 137                  jfloat x, jfloat y);
 138   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 139   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 140   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 141                jfloat x, jfloat y, jfloat delta);
 142   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 143                                 jfloat x1, jfloat y1,
 144                                 jfloat x2, jfloat y2);
 145   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 146   void HideTextHandles(JNIEnv* env, jobject obj);
 147
 148   void ResetGestureDetection(JNIEnv* env, jobject obj);
 149   void SetDoubleTapSupportEnabled(JNIEnv* env, jobject obj, jboolean enabled);
 150   void SetMultiTouchZoomSupportEnabled(JNIEnv* env,
 151                                        jobject obj,
 152                                        jboolean enabled);
 153
 154   long GetNativeImeAdapter(JNIEnv* env, jobject obj);
 155   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 156
 157   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 158   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 159   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 160                                               jobject obj,
 161                                               jboolean allow);
 162   void AddJavascriptInterface(JNIEnv* env,
 163                               jobject obj,
 164                               jobject object,
 165                               jstring name,
 166                               jclass safe_annotation_clazz);
 167   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 168   void WasResized(JNIEnv* env, jobject obj);
 169
 170   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 171
 172   void ExtractSmartClipData(JNIEnv* env,
 173                             jobject obj,
 174                             jint x,
 175                             jint y,
 176                             jint width,
 177                             jint height);
 178
 179   void SetBackgroundOpaque(JNIEnv* env, jobject jobj, jboolean opaque);
 180
 181   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 182
 183   // --------------------------------------------------------------------------
 184   // Public methods that call to Java via JNI
 185   // --------------------------------------------------------------------------
 186
 187   void OnSmartClipDataExtracted(const base::string16& text,
 188                                 const base::string16& html,
 189                                 const gfx::Rect& clip_rect);
 190
 191   // Creates a popup menu with |items|.
 192   // |multiple| defines if it should support multi-select.
 193   // If not |multiple|, |selected_item| sets the initially selected item.
 194   // Otherwise, item's "checked" flag selects it.
 195   void ShowSelectPopupMenu(RenderFrameHost* frame,
 196                            const gfx::Rect& bounds,
 197                            const std::vector<MenuItem>& items,
 198                            int selected_item,
 199                            bool multiple);
 200   // Hides a visible popup menu.
 201   void HideSelectPopupMenu();
 202
 203   // All sizes and offsets are in CSS pixels as cached by the renderer.
 204   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 205                        float page_scale_factor,
 206                        const gfx::Vector2dF& page_scale_factor_limits,
 207                        const gfx::SizeF& content_size,
 208                        const gfx::SizeF& viewport_size,
 209                        const gfx::Vector2dF& controls_offset,
 210                        const gfx::Vector2dF& content_offset);
 211
 212   void UpdateImeAdapter(long native_ime_adapter,
 213                         int text_input_type,
 214                         int text_input_flags,
 215                         const std::string& text,
 216                         int selection_start,
 217                         int selection_end,
 218                         int composition_start,
 219                         int composition_end,
 220                         bool show_ime_if_needed,
 221                         bool is_non_ime_change);
 222   void SetTitle(const base::string16& title);
 223   void OnBackgroundColorChanged(SkColor color);
 224
 225   bool HasFocus();
 226   void OnGestureEventAck(const blink::WebGestureEvent& event,
 227                          InputEventAckState ack_result);
 228   bool FilterInputEvent(const blink::WebInputEvent& event);
 229   void OnSelectionChanged(const std::string& text);
 230   void OnSelectionEvent(SelectionEventType event,
 231                         const gfx::PointF& anchor_position);
 232   scoped_ptr<TouchHandleDrawable> CreatePopupTouchHandleDrawable();
 233
 234   void StartContentIntent(const GURL& content_url);
 235
 236   // Shows the disambiguation popup
 237   // |rect_pixels|   --> window coordinates which |zoomed_bitmap| represents
 238   // |zoomed_bitmap| --> magnified image of potential touch targets
 239   void ShowDisambiguationPopup(
 240       const gfx::Rect& rect_pixels, const SkBitmap& zoomed_bitmap);
 241
 242   // Creates a java-side touch event, used for injecting touch event for
 243   // testing/benchmarking purposes
 244   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 245
 246   // Returns True if the given media should be blocked to load.
 247   bool ShouldBlockMediaRequest(const GURL& url);
 248
 249   void DidStopFlinging();
 250
 251   // Returns the context with which the ContentViewCore was created, typically
 252   // the Activity context.
 253   base::android::ScopedJavaLocalRef<jobject> GetContext() const;
 254
 255   // Returns the viewport size after accounting for the viewport offset.
 256   gfx::Size GetViewSize() const;
 257
 258   void SetAccessibilityEnabledInternal(bool enabled);
 259
 260   bool IsFullscreenRequiredForOrientationLock() const;
 261
 262   // --------------------------------------------------------------------------
 263   // Methods called from native code
 264   // --------------------------------------------------------------------------
 265
 266   gfx::Size GetPhysicalBackingSize() const;
 267   gfx::Size GetViewportSizeDip() const;
 268   float GetTopControlsLayoutHeightDip() const;
 269
 270   void AttachLayer(scoped_refptr<cc::Layer> layer);
 271   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 272
 273   void MoveRangeSelectionExtent(const gfx::PointF& extent);
 274
 275   void SelectBetweenCoordinates(const gfx::PointF& base,
 276                                 const gfx::PointF& extent);
 277
 278  private:
 279   class ContentViewUserData;
 280
 281   friend class ContentViewUserData;
 282   virtual ~ContentViewCoreImpl();
 283
 284   // WebContentsObserver implementation.
 285   virtual void RenderViewReady() override;
 286   virtual void RenderViewHostChanged(RenderViewHost* old_host,
 287                                      RenderViewHost* new_host) override;
 288   virtual void WebContentsDestroyed() override;
 289
 290   // --------------------------------------------------------------------------
 291   // Other private methods and data
 292   // --------------------------------------------------------------------------
 293
 294   void InitWebContents();
 295
 296   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 297
 298   blink::WebGestureEvent MakeGestureEvent(
 299       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 300
 301   gfx::Size GetViewportSizePix() const;
 302   int GetTopControlsLayoutHeightPix() const;
 303
 304   void SendGestureEvent(const blink::WebGestureEvent& event);
 305
 306   // Update focus state of the RenderWidgetHostView.
 307   void SetFocusInternal(bool focused);
 308
 309   // Send device_orientation_ to renderer.
 310   void SendOrientationChangeEventInternal();
 311
 312   float dpi_scale() const { return dpi_scale_; }
 313
 314   // A weak reference to the Java ContentViewCore object.
 315   JavaObjectWeakGlobalRef java_ref_;
 316
 317   // Reference to the current WebContents used to determine how and what to
 318   // display in the ContentViewCore.
 319   WebContentsImpl* web_contents_;
 320
 321   // A compositor layer containing any layer that should be shown.
 322   scoped_refptr<cc::Layer> root_layer_;
 323
 324   // Device scale factor.
 325   float dpi_scale_;
 326
 327   // The Android view that can be used to add and remove decoration layers
 328   // like AutofillPopup.
 329   ui::ViewAndroid* view_android_;
 330
 331   // The owning window that has a hold of main application activity.
 332   ui::WindowAndroid* window_android_;
 333
 334   // The cache of device's current orientation set from Java side, this value
 335   // will be sent to Renderer once it is ready.
 336   int device_orientation_;
 337
 338   bool accessibility_enabled_;
 339
 340   // Manages injecting Java objects.
 341   scoped_ptr<GinJavaBridgeDispatcherHost>
 342       java_bridge_dispatcher_host_;
 343
 344   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 345 };
 346
 347 bool RegisterContentViewCore(JNIEnv* env);
 348
 349 }  // namespace content
 350
 351 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_