src/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 class GinJavaBridgeDispatcherHost;
  32 class RenderWidgetHostViewAndroid;
  33 struct MenuItem;
  34
  35 // TODO(jrg): this is a shell.  Upstream the rest.
  36 class ContentViewCoreImpl : public ContentViewCore,
  37                             public WebContentsObserver {
  38  public:
  39   static ContentViewCoreImpl* FromWebContents(WebContents* web_contents);
  40   ContentViewCoreImpl(JNIEnv* env,
  41                       jobject obj,
  42                       WebContents* web_contents,
  43                       ui::ViewAndroid* view_android,
  44                       ui::WindowAndroid* window_android,
  45                       jobject java_bridge_retained_object_set);
  46
  47   // ContentViewCore implementation.
  48   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() OVERRIDE;
  49   virtual WebContents* GetWebContents() const OVERRIDE;
  50   virtual ui::ViewAndroid* GetViewAndroid() const OVERRIDE;
  51   virtual ui::WindowAndroid* GetWindowAndroid() const OVERRIDE;
  52   virtual scoped_refptr<cc::Layer> GetLayer() const OVERRIDE;
  53   virtual void LoadUrl(NavigationController::LoadURLParams& params) OVERRIDE;
  54   virtual void ShowPastePopup(int x, int y) OVERRIDE;
  55   virtual void GetScaledContentBitmap(
  56       float scale,
  57       SkColorType color_type,
  58       gfx::Rect src_subrect,
  59       const base::Callback<void(bool, const SkBitmap&)>& result_callback)
  60       OVERRIDE;
  61   virtual float GetDpiScale() const OVERRIDE;
  62   virtual void PauseVideo() 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, jintArray indices);
  82
  83   void LoadUrl(
  84       JNIEnv* env, jobject obj,
  85       jstring url,
  86       jint load_url_type,
  87       jint transition_type,
  88       jstring j_referrer_url,
  89       jint referrer_policy,
  90       jint ua_override_option,
  91       jstring extra_headers,
  92       jbyteArray post_data,
  93       jstring base_url_for_data_url,
  94       jstring virtual_url_for_data_url,
  95       jboolean can_load_local_resources,
  96       jboolean is_renderer_initiated);
  97   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
  98   jboolean OnTouchEvent(JNIEnv* env,
  99                         jobject obj,
 100                         jobject motion_event,
 101                         jlong time_ms,
 102                         jint android_action,
 103                         jint pointer_count,
 104                         jint history_size,
 105                         jint action_index,
 106                         jfloat pos_x_0,
 107                         jfloat pos_y_0,
 108                         jfloat pos_x_1,
 109                         jfloat pos_y_1,
 110                         jint pointer_id_0,
 111                         jint pointer_id_1,
 112                         jfloat touch_major_0,
 113                         jfloat touch_major_1,
 114                         jfloat raw_pos_x,
 115                         jfloat raw_pos_y,
 116                         jint android_tool_type_0,
 117                         jint android_tool_type_1,
 118                         jint android_button_state,
 119                         jboolean is_touch_handle_event);
 120   jboolean SendMouseMoveEvent(JNIEnv* env,
 121                               jobject obj,
 122                               jlong time_ms,
 123                               jfloat x,
 124                               jfloat y);
 125   jboolean SendMouseWheelEvent(JNIEnv* env,
 126                                jobject obj,
 127                                jlong time_ms,
 128                                jfloat x,
 129                                jfloat y,
 130                                jfloat vertical_axis);
 131   void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
 132                    jfloat x, jfloat y, jfloat hintx, jfloat hinty);
 133   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 134   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 135                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 136   void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
 137                   jfloat x, jfloat y, jfloat vx, jfloat vy);
 138   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 139   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 140                  jfloat x, jfloat y);
 141   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 142                  jfloat x, jfloat y) ;
 143   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 144                  jfloat x, jfloat y);
 145   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 146   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 147   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 148                jfloat x, jfloat y, jfloat delta);
 149   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 150                                 jfloat x1, jfloat y1,
 151                                 jfloat x2, jfloat y2);
 152   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 153   void HideTextHandles(JNIEnv* env, jobject obj);
 154
 155   void ResetGestureDetection(JNIEnv* env, jobject obj);
 156   void SetDoubleTapSupportEnabled(JNIEnv* env, jobject obj, jboolean enabled);
 157   void SetMultiTouchZoomSupportEnabled(JNIEnv* env,
 158                                        jobject obj,
 159                                        jboolean enabled);
 160
 161   void ClearHistory(JNIEnv* env, jobject obj);
 162   void PostMessageToFrame(JNIEnv* env, jobject obj, jstring frame_id,
 163       jstring message, jstring source_origin, jstring target_origin);
 164   long GetNativeImeAdapter(JNIEnv* env, jobject obj);
 165   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 166
 167   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 168   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 169   void ClearSslPreferences(JNIEnv* env, jobject /* obj */);
 170   void SetUseDesktopUserAgent(JNIEnv* env,
 171                               jobject /* obj */,
 172                               jboolean state,
 173                               jboolean reload_on_state_change);
 174   bool GetUseDesktopUserAgent(JNIEnv* env, jobject /* obj */);
 175   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 176                                               jobject obj,
 177                                               jboolean allow);
 178   void AddJavascriptInterface(JNIEnv* env,
 179                               jobject obj,
 180                               jobject object,
 181                               jstring name,
 182                               jclass safe_annotation_clazz);
 183   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 184   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
 185   void GetDirectedNavigationHistory(JNIEnv* env,
 186                                     jobject obj,
 187                                     jobject history,
 188                                     jboolean is_forward,
 189                                     jint max_entries);
 190   base::android::ScopedJavaLocalRef<jstring>
 191       GetOriginalUrlForActiveNavigationEntry(JNIEnv* env, jobject obj);
 192   void WasResized(JNIEnv* env, jobject obj);
 193
 194   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 195
 196   void ExtractSmartClipData(JNIEnv* env,
 197                             jobject obj,
 198                             jint x,
 199                             jint y,
 200                             jint width,
 201                             jint height);
 202
 203   void SetBackgroundOpaque(JNIEnv* env, jobject jobj, jboolean opaque);
 204
 205   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 206
 207   // --------------------------------------------------------------------------
 208   // Public methods that call to Java via JNI
 209   // --------------------------------------------------------------------------
 210
 211   void OnSmartClipDataExtracted(const base::string16& text,
 212                                 const base::string16& html,
 213                                 const gfx::Rect& clip_rect);
 214
 215   // Creates a popup menu with |items|.
 216   // |multiple| defines if it should support multi-select.
 217   // If not |multiple|, |selected_item| sets the initially selected item.
 218   // Otherwise, item's "checked" flag selects it.
 219   void ShowSelectPopupMenu(const gfx::Rect& bounds,
 220                            const std::vector<MenuItem>& items,
 221                            int selected_item,
 222                            bool multiple);
 223   // Hides a visible popup menu.
 224   void HideSelectPopupMenu();
 225
 226   // All sizes and offsets are in CSS pixels as cached by the renderer.
 227   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 228                        float page_scale_factor,
 229                        const gfx::Vector2dF& page_scale_factor_limits,
 230                        const gfx::SizeF& content_size,
 231                        const gfx::SizeF& viewport_size,
 232                        const gfx::Vector2dF& controls_offset,
 233                        const gfx::Vector2dF& content_offset,
 234                        float overdraw_bottom_height);
 235
 236   void UpdateImeAdapter(long native_ime_adapter,
 237                         int text_input_type,
 238                         int text_input_flags,
 239                         const std::string& text,
 240                         int selection_start,
 241                         int selection_end,
 242                         int composition_start,
 243                         int composition_end,
 244                         bool show_ime_if_needed,
 245                         bool is_non_ime_change);
 246   void SetTitle(const base::string16& title);
 247   void OnBackgroundColorChanged(SkColor color);
 248
 249   bool HasFocus();
 250   void OnGestureEventAck(const blink::WebGestureEvent& event,
 251                          InputEventAckState ack_result);
 252   bool FilterInputEvent(const blink::WebInputEvent& event);
 253   void OnSelectionChanged(const std::string& text);
 254   void OnSelectionEvent(SelectionEventType event,
 255                         const gfx::PointF& anchor_position);
 256   scoped_ptr<TouchHandleDrawable> CreatePopupTouchHandleDrawable();
 257
 258   void StartContentIntent(const GURL& content_url);
 259
 260   // Shows the disambiguation popup
 261   // |target_rect|   --> window coordinates which |zoomed_bitmap| represents
 262   // |zoomed_bitmap| --> magnified image of potential touch targets
 263   void ShowDisambiguationPopup(
 264       const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap);
 265
 266   // Creates a java-side touch event, used for injecting touch event for
 267   // testing/benchmarking purposes
 268   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 269
 270   base::android::ScopedJavaLocalRef<jobject> GetContentVideoViewClient();
 271
 272   // Returns the context that the ContentViewCore was created with, it would
 273   // typically be an Activity context for an on screen view.
 274   base::android::ScopedJavaLocalRef<jobject> GetContext();
 275
 276   // Returns True if the given media should be blocked to load.
 277   bool ShouldBlockMediaRequest(const GURL& url);
 278
 279   void DidStopFlinging();
 280
 281   // Returns the viewport size after accounting for the viewport offset.
 282   gfx::Size GetViewSize() const;
 283
 284   void SetAccessibilityEnabledInternal(bool enabled);
 285
 286   bool IsFullscreenRequiredForOrientationLock() const;
 287
 288   // --------------------------------------------------------------------------
 289   // Methods called from native code
 290   // --------------------------------------------------------------------------
 291
 292   gfx::Size GetPhysicalBackingSize() const;
 293   gfx::Size GetViewportSizeDip() const;
 294   gfx::Size GetViewportSizeOffsetDip() const;
 295   float GetOverdrawBottomHeightDip() const;
 296
 297   void AttachLayer(scoped_refptr<cc::Layer> layer);
 298   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 299
 300   void SelectBetweenCoordinates(const gfx::PointF& start,
 301                                 const gfx::PointF& end);
 302
 303  private:
 304   class ContentViewUserData;
 305
 306   friend class ContentViewUserData;
 307   virtual ~ContentViewCoreImpl();
 308
 309   // WebContentsObserver implementation.
 310   virtual void RenderViewReady() OVERRIDE;
 311   virtual void RenderViewHostChanged(RenderViewHost* old_host,
 312                                      RenderViewHost* new_host) OVERRIDE;
 313   virtual void WebContentsDestroyed() OVERRIDE;
 314
 315   // --------------------------------------------------------------------------
 316   // Other private methods and data
 317   // --------------------------------------------------------------------------
 318
 319   void InitWebContents();
 320
 321   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 322
 323   blink::WebGestureEvent MakeGestureEvent(
 324       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 325
 326   gfx::Size GetViewportSizePix() const;
 327   gfx::Size GetViewportSizeOffsetPix() const;
 328
 329   void DeleteScaledSnapshotTexture();
 330
 331   bool OnMotionEvent(const ui::MotionEvent& event);
 332   void SendGestureEvent(const blink::WebGestureEvent& event);
 333
 334   // Update focus state of the RenderWidgetHostView.
 335   void SetFocusInternal(bool focused);
 336
 337   // Send device_orientation_ to renderer.
 338   void SendOrientationChangeEventInternal();
 339
 340   float dpi_scale() const { return dpi_scale_; }
 341
 342   // A weak reference to the Java ContentViewCore object.
 343   JavaObjectWeakGlobalRef java_ref_;
 344
 345   // Reference to the current WebContents used to determine how and what to
 346   // display in the ContentViewCore.
 347   WebContentsImpl* web_contents_;
 348
 349   // A compositor layer containing any layer that should be shown.
 350   scoped_refptr<cc::Layer> root_layer_;
 351
 352   // Device scale factor.
 353   float dpi_scale_;
 354
 355   // The Android view that can be used to add and remove decoration layers
 356   // like AutofillPopup.
 357   ui::ViewAndroid* view_android_;
 358
 359   // The owning window that has a hold of main application activity.
 360   ui::WindowAndroid* window_android_;
 361
 362   // The cache of device's current orientation set from Java side, this value
 363   // will be sent to Renderer once it is ready.
 364   int device_orientation_;
 365
 366   bool accessibility_enabled_;
 367
 368   // Manages injecting Java objects.
 369   scoped_ptr<GinJavaBridgeDispatcherHost>
 370       java_bridge_dispatcher_host_;
 371
 372   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 373 };
 374
 375 bool RegisterContentViewCore(JNIEnv* env);
 376
 377 }  // namespace content
 378
 379 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_