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/geometry/rect.h"
  22 #include "ui/gfx/geometry/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 class ContentViewCoreImpl : public ContentViewCore,
  38                             public WebContentsObserver {
  39  public:
  40   static ContentViewCoreImpl* FromWebContents(WebContents* web_contents);
  41   ContentViewCoreImpl(JNIEnv* env,
  42                       jobject obj,
  43                       WebContents* web_contents,
  44                       ui::ViewAndroid* view_android,
  45                       ui::WindowAndroid* window_android,
  46                       jobject java_bridge_retained_object_set);
  47
  48   // ContentViewCore implementation.
  49   base::android::ScopedJavaLocalRef<jobject> GetJavaObject() override;
  50   WebContents* GetWebContents() const override;
  51   ui::ViewAndroid* GetViewAndroid() const override;
  52   ui::WindowAndroid* GetWindowAndroid() const override;
  53   const scoped_refptr<cc::Layer>& GetLayer() const override;
  54   void ShowPastePopup(int x, int y) override;
  55   void GetScaledContentBitmap(
  56       float scale,
  57       SkColorType color_type,
  58       gfx::Rect src_subrect,
  59       ReadbackRequestCallback& result_callback) override;
  60   float GetDpiScale() const override;
  61   void PauseOrResumeGeolocation(bool should_pause) override;
  62   void RequestTextSurroundingSelection(
  63       int max_length,
  64       const base::Callback<void(const base::string16& content,
  65                                 int start_offset,
  66                                 int end_offset)>& callback) override;
  67
  68   // --------------------------------------------------------------------------
  69   // Methods called from Java via JNI
  70   // --------------------------------------------------------------------------
  71
  72   base::android::ScopedJavaLocalRef<jobject> GetWebContentsAndroid(JNIEnv* env,
  73                                                                    jobject obj);
  74
  75   void OnJavaContentViewCoreDestroyed(JNIEnv* env, jobject obj);
  76
  77   // Notifies the ContentViewCore that items were selected in the currently
  78   // showing select popup.
  79   void SelectPopupMenuItems(JNIEnv* env, jobject obj,
  80                             jlong selectPopupSourceFrame,
  81                             jintArray indices);
  82
  83   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
  84   jboolean OnTouchEvent(JNIEnv* env,
  85                         jobject obj,
  86                         jobject motion_event,
  87                         jlong time_ms,
  88                         jint android_action,
  89                         jint pointer_count,
  90                         jint history_size,
  91                         jint action_index,
  92                         jfloat pos_x_0,
  93                         jfloat pos_y_0,
  94                         jfloat pos_x_1,
  95                         jfloat pos_y_1,
  96                         jint pointer_id_0,
  97                         jint pointer_id_1,
  98                         jfloat touch_major_0,
  99                         jfloat touch_major_1,
 100                         jfloat touch_minor_0,
 101                         jfloat touch_minor_1,
 102                         jfloat orientation_0,
 103                         jfloat orientation_1,
 104                         jfloat raw_pos_x,
 105                         jfloat raw_pos_y,
 106                         jint android_tool_type_0,
 107                         jint android_tool_type_1,
 108                         jint android_button_state,
 109                         jint android_meta_state,
 110                         jboolean is_touch_handle_event);
 111   jboolean SendMouseMoveEvent(JNIEnv* env,
 112                               jobject obj,
 113                               jlong time_ms,
 114                               jfloat x,
 115                               jfloat y);
 116   jboolean SendMouseWheelEvent(JNIEnv* env,
 117                                jobject obj,
 118                                jlong time_ms,
 119                                jfloat x,
 120                                jfloat y,
 121                                jfloat vertical_axis,
 122                                jfloat horizontal_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   void SetDrawsContent(JNIEnv* env, jobject jobj, jboolean draws);
 183
 184   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 185
 186   // --------------------------------------------------------------------------
 187   // Public methods that call to Java via JNI
 188   // --------------------------------------------------------------------------
 189
 190   void OnSmartClipDataExtracted(const base::string16& text,
 191                                 const base::string16& html,
 192                                 const gfx::Rect& clip_rect);
 193
 194   // Creates a popup menu with |items|.
 195   // |multiple| defines if it should support multi-select.
 196   // If not |multiple|, |selected_item| sets the initially selected item.
 197   // Otherwise, item's "checked" flag selects it.
 198   void ShowSelectPopupMenu(RenderFrameHost* frame,
 199                            const gfx::Rect& bounds,
 200                            const std::vector<MenuItem>& items,
 201                            int selected_item,
 202                            bool multiple);
 203   // Hides a visible popup menu.
 204   void HideSelectPopupMenu();
 205
 206   // All sizes and offsets are in CSS pixels as cached by the renderer.
 207   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 208                        float page_scale_factor,
 209                        const gfx::Vector2dF& page_scale_factor_limits,
 210                        const gfx::SizeF& content_size,
 211                        const gfx::SizeF& viewport_size,
 212                        const gfx::Vector2dF& controls_offset,
 213                        const gfx::Vector2dF& content_offset,
 214                        bool is_mobile_optimized_hint);
 215
 216   void UpdateImeAdapter(long native_ime_adapter,
 217                         int text_input_type,
 218                         int text_input_flags,
 219                         const std::string& text,
 220                         int selection_start,
 221                         int selection_end,
 222                         int composition_start,
 223                         int composition_end,
 224                         bool show_ime_if_needed,
 225                         bool is_non_ime_change);
 226   void SetTitle(const base::string16& title);
 227   void OnBackgroundColorChanged(SkColor color);
 228
 229   bool HasFocus();
 230   void OnGestureEventAck(const blink::WebGestureEvent& event,
 231                          InputEventAckState ack_result);
 232   bool FilterInputEvent(const blink::WebInputEvent& event);
 233   void OnSelectionChanged(const std::string& text);
 234   void OnSelectionEvent(ui::SelectionEventType event,
 235                         const gfx::PointF& anchor_position);
 236   scoped_ptr<ui::TouchHandleDrawable> CreatePopupTouchHandleDrawable();
 237
 238   void StartContentIntent(const GURL& content_url);
 239
 240   // Shows the disambiguation popup
 241   // |rect_pixels|   --> window coordinates which |zoomed_bitmap| represents
 242   // |zoomed_bitmap| --> magnified image of potential touch targets
 243   void ShowDisambiguationPopup(
 244       const gfx::Rect& rect_pixels, const SkBitmap& zoomed_bitmap);
 245
 246   // Creates a java-side touch event, used for injecting touch event for
 247   // testing/benchmarking purposes
 248   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 249
 250   // Returns True if the given media should be blocked to load.
 251   bool ShouldBlockMediaRequest(const GURL& url);
 252
 253   void DidStopFlinging();
 254
 255   // Returns the context with which the ContentViewCore was created, typically
 256   // the Activity context.
 257   base::android::ScopedJavaLocalRef<jobject> GetContext() const;
 258
 259   // Returns the viewport size after accounting for the viewport offset.
 260   gfx::Size GetViewSize() const;
 261
 262   void SetAccessibilityEnabledInternal(bool enabled);
 263
 264   bool IsFullscreenRequiredForOrientationLock() const;
 265
 266   // --------------------------------------------------------------------------
 267   // Methods called from native code
 268   // --------------------------------------------------------------------------
 269
 270   gfx::Size GetPhysicalBackingSize() const;
 271   gfx::Size GetViewportSizeDip() const;
 272   bool DoTopControlsShrinkBlinkSize() const;
 273   float GetTopControlsHeightDip() const;
 274
 275   void AttachLayer(scoped_refptr<cc::Layer> layer);
 276   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 277
 278   void MoveRangeSelectionExtent(const gfx::PointF& extent);
 279
 280   void SelectBetweenCoordinates(const gfx::PointF& base,
 281                                 const gfx::PointF& extent);
 282
 283   void OnShowUnhandledTapUIIfNeeded(int x_dip, int y_dip);
 284
 285  private:
 286   class ContentViewUserData;
 287
 288   friend class ContentViewUserData;
 289   ~ContentViewCoreImpl() override;
 290
 291   // WebContentsObserver implementation.
 292   void RenderViewReady() override;
 293   void RenderViewHostChanged(RenderViewHost* old_host,
 294                              RenderViewHost* new_host) override;
 295   void WebContentsDestroyed() override;
 296
 297   // --------------------------------------------------------------------------
 298   // Other private methods and data
 299   // --------------------------------------------------------------------------
 300
 301   void InitWebContents();
 302
 303   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid() const;
 304
 305   blink::WebGestureEvent MakeGestureEvent(
 306       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 307
 308   gfx::Size GetViewportSizePix() const;
 309   int GetTopControlsHeightPix() const;
 310
 311   void SendGestureEvent(const blink::WebGestureEvent& event);
 312
 313   // Update focus state of the RenderWidgetHostView.
 314   void SetFocusInternal(bool focused);
 315
 316   // Send device_orientation_ to renderer.
 317   void SendOrientationChangeEventInternal();
 318
 319   float dpi_scale() const { return dpi_scale_; }
 320
 321   // A weak reference to the Java ContentViewCore object.
 322   JavaObjectWeakGlobalRef java_ref_;
 323
 324   // Reference to the current WebContents used to determine how and what to
 325   // display in the ContentViewCore.
 326   WebContentsImpl* web_contents_;
 327
 328   // A compositor layer containing any layer that should be shown.
 329   scoped_refptr<cc::Layer> root_layer_;
 330
 331   // Device scale factor.
 332   float dpi_scale_;
 333
 334   // The Android view that can be used to add and remove decoration layers
 335   // like AutofillPopup.
 336   ui::ViewAndroid* view_android_;
 337
 338   // The owning window that has a hold of main application activity.
 339   ui::WindowAndroid* window_android_;
 340
 341   // The cache of device's current orientation set from Java side, this value
 342   // will be sent to Renderer once it is ready.
 343   int device_orientation_;
 344
 345   bool accessibility_enabled_;
 346
 347   // Manages injecting Java objects.
 348   scoped_refptr<GinJavaBridgeDispatcherHost> java_bridge_dispatcher_host_;
 349
 350   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 351 };
 352
 353 bool RegisterContentViewCore(JNIEnv* env);
 354
 355 }  // namespace content
 356
 357 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_