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 JavaBridgeDispatcherHostManager;
  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       jobject bitmap_config,
  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   base::android::ScopedJavaLocalRef<jstring> GetURL(JNIEnv* env, jobject) const;
  98   jboolean IsIncognito(JNIEnv* env, jobject obj);
  99   void SendOrientationChangeEvent(JNIEnv* env, jobject obj, jint orientation);
 100   jboolean OnTouchEvent(JNIEnv* env,
 101                         jobject obj,
 102                         jobject motion_event,
 103                         jlong time_ms,
 104                         jint android_action,
 105                         jint pointer_count,
 106                         jint history_size,
 107                         jint action_index,
 108                         jfloat pos_x_0,
 109                         jfloat pos_y_0,
 110                         jfloat pos_x_1,
 111                         jfloat pos_y_1,
 112                         jint pointer_id_0,
 113                         jint pointer_id_1,
 114                         jfloat touch_major_0,
 115                         jfloat touch_major_1,
 116                         jfloat raw_pos_x,
 117                         jfloat raw_pos_y);
 118   jboolean SendMouseMoveEvent(JNIEnv* env,
 119                               jobject obj,
 120                               jlong time_ms,
 121                               jfloat x,
 122                               jfloat y);
 123   jboolean SendMouseWheelEvent(JNIEnv* env,
 124                                jobject obj,
 125                                jlong time_ms,
 126                                jfloat x,
 127                                jfloat y,
 128                                jfloat vertical_axis);
 129   void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
 130                    jfloat x, jfloat y, jfloat hintx, jfloat hinty);
 131   void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
 132   void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
 133                 jfloat x, jfloat y, jfloat dx, jfloat dy);
 134   void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
 135                   jfloat x, jfloat y, jfloat vx, jfloat vy);
 136   void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
 137   void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
 138                  jfloat x, jfloat y);
 139   void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
 140                  jfloat x, jfloat y) ;
 141   void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
 142                  jfloat x, jfloat y);
 143   void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms, jfloat x, jfloat y);
 144   void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
 145   void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
 146                jfloat x, jfloat y, jfloat delta);
 147   void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
 148                                 jfloat x1, jfloat y1,
 149                                 jfloat x2, jfloat y2);
 150   void MoveCaret(JNIEnv* env, jobject obj, jfloat x, jfloat y);
 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   void LoadIfNecessary(JNIEnv* env, jobject obj);
 159   void RequestRestoreLoad(JNIEnv* env, jobject obj);
 160   void Reload(JNIEnv* env, jobject obj, jboolean check_for_repost);
 161   void ReloadIgnoringCache(JNIEnv* env, jobject obj, jboolean check_for_repost);
 162   void CancelPendingReload(JNIEnv* env, jobject obj);
 163   void ContinuePendingReload(JNIEnv* env, jobject obj);
 164   void ClearHistory(JNIEnv* env, jobject obj);
 165   void EvaluateJavaScript(JNIEnv* env,
 166                           jobject obj,
 167                           jstring script,
 168                           jobject callback,
 169                           jboolean start_renderer);
 170   long GetNativeImeAdapter(JNIEnv* env, jobject obj);
 171   void SetFocus(JNIEnv* env, jobject obj, jboolean focused);
 172   void ScrollFocusedEditableNodeIntoView(JNIEnv* env, jobject obj);
 173   void SelectWordAroundCaret(JNIEnv* env, jobject obj);
 174
 175   jint GetBackgroundColor(JNIEnv* env, jobject obj);
 176   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
 177   void OnShow(JNIEnv* env, jobject obj);
 178   void OnHide(JNIEnv* env, jobject obj);
 179   void ClearSslPreferences(JNIEnv* env, jobject /* obj */);
 180   void SetUseDesktopUserAgent(JNIEnv* env,
 181                               jobject /* obj */,
 182                               jboolean state,
 183                               jboolean reload_on_state_change);
 184   bool GetUseDesktopUserAgent(JNIEnv* env, jobject /* obj */);
 185   void Show();
 186   void Hide();
 187   void SetAllowJavascriptInterfacesInspection(JNIEnv* env,
 188                                               jobject obj,
 189                                               jboolean allow);
 190   void AddJavascriptInterface(JNIEnv* env,
 191                               jobject obj,
 192                               jobject object,
 193                               jstring name,
 194                               jclass safe_annotation_clazz);
 195   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
 196   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
 197   void GetDirectedNavigationHistory(JNIEnv* env,
 198                                     jobject obj,
 199                                     jobject history,
 200                                     jboolean is_forward,
 201                                     jint max_entries);
 202   base::android::ScopedJavaLocalRef<jstring>
 203       GetOriginalUrlForActiveNavigationEntry(JNIEnv* env, jobject obj);
 204   void WasResized(JNIEnv* env, jobject obj);
 205   jboolean IsRenderWidgetHostViewReady(JNIEnv* env, jobject obj);
 206   void ExitFullscreen(JNIEnv* env, jobject obj);
 207   void UpdateTopControlsState(JNIEnv* env,
 208                               jobject obj,
 209                               bool enable_hiding,
 210                               bool enable_showing,
 211                               bool animate);
 212   void ShowImeIfNeeded(JNIEnv* env, jobject obj);
 213
 214   void ShowInterstitialPage(JNIEnv* env,
 215                             jobject obj,
 216                             jstring jurl,
 217                             jlong delegate);
 218   jboolean IsShowingInterstitialPage(JNIEnv* env, jobject obj);
 219
 220   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
 221
 222   void ExtractSmartClipData(JNIEnv* env,
 223                             jobject obj,
 224                             jint x,
 225                             jint y,
 226                             jint width,
 227                             jint height);
 228
 229   void SetBackgroundOpaque(JNIEnv* env, jobject jobj, jboolean opaque);
 230
 231   jint GetCurrentRenderProcessId(JNIEnv* env, jobject obj);
 232
 233   // --------------------------------------------------------------------------
 234   // Public methods that call to Java via JNI
 235   // --------------------------------------------------------------------------
 236
 237   void OnSmartClipDataExtracted(const base::string16& result);
 238
 239   // Creates a popup menu with |items|.
 240   // |multiple| defines if it should support multi-select.
 241   // If not |multiple|, |selected_item| sets the initially selected item.
 242   // Otherwise, item's "checked" flag selects it.
 243   void ShowSelectPopupMenu(const gfx::Rect& bounds,
 244                            const std::vector<MenuItem>& items,
 245                            int selected_item,
 246                            bool multiple);
 247   // Hides a visible popup menu.
 248   void HideSelectPopupMenu();
 249
 250   // All sizes and offsets are in CSS pixels as cached by the renderer.
 251   void UpdateFrameInfo(const gfx::Vector2dF& scroll_offset,
 252                        float page_scale_factor,
 253                        const gfx::Vector2dF& page_scale_factor_limits,
 254                        const gfx::SizeF& content_size,
 255                        const gfx::SizeF& viewport_size,
 256                        const gfx::Vector2dF& controls_offset,
 257                        const gfx::Vector2dF& content_offset,
 258                        float overdraw_bottom_height);
 259
 260   void UpdateImeAdapter(long native_ime_adapter, int text_input_type,
 261                         const std::string& text,
 262                         int selection_start, int selection_end,
 263                         int composition_start, int composition_end,
 264                         bool show_ime_if_needed, bool is_non_ime_change);
 265   void SetTitle(const base::string16& title);
 266   void OnBackgroundColorChanged(SkColor color);
 267
 268   bool HasFocus();
 269   void OnGestureEventAck(const blink::WebGestureEvent& event,
 270                          InputEventAckState ack_result);
 271   bool FilterInputEvent(const blink::WebInputEvent& event);
 272   void OnSelectionChanged(const std::string& text);
 273   void OnSelectionBoundsChanged(
 274       const ViewHostMsg_SelectionBounds_Params& params);
 275
 276   void StartContentIntent(const GURL& content_url);
 277
 278   // Shows the disambiguation popup
 279   // |target_rect|   --> window coordinates which |zoomed_bitmap| represents
 280   // |zoomed_bitmap| --> magnified image of potential touch targets
 281   void ShowDisambiguationPopup(
 282       const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap);
 283
 284   // Creates a java-side touch event, used for injecting touch event for
 285   // testing/benchmarking purposes
 286   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 287
 288   base::android::ScopedJavaLocalRef<jobject> GetContentVideoViewClient();
 289
 290   // Returns the context that the ContentViewCore was created with, it would
 291   // typically be an Activity context for an on screen view.
 292   base::android::ScopedJavaLocalRef<jobject> GetContext();
 293
 294   // Returns True if the given media should be blocked to load.
 295   bool ShouldBlockMediaRequest(const GURL& url);
 296
 297   void DidStopFlinging();
 298
 299   // Returns the viewport size after accounting for the viewport offset.
 300   gfx::Size GetViewSize() const;
 301
 302   void SetAccessibilityEnabledInternal(bool enabled);
 303
 304   // --------------------------------------------------------------------------
 305   // Methods called from native code
 306   // --------------------------------------------------------------------------
 307
 308   gfx::Size GetPhysicalBackingSize() const;
 309   gfx::Size GetViewportSizeDip() const;
 310   gfx::Size GetViewportSizeOffsetDip() const;
 311   float GetOverdrawBottomHeightDip() const;
 312
 313   void AttachLayer(scoped_refptr<cc::Layer> layer);
 314   void RemoveLayer(scoped_refptr<cc::Layer> layer);
 315
 316  private:
 317   class ContentViewUserData;
 318
 319   friend class ContentViewUserData;
 320   virtual ~ContentViewCoreImpl();
 321
 322   // WebContentsObserver implementation.
 323   virtual void RenderViewReady() OVERRIDE;
 324   virtual void RenderViewHostChanged(RenderViewHost* old_host,
 325                                      RenderViewHost* new_host) OVERRIDE;
 326   virtual void WebContentsDestroyed() OVERRIDE;
 327
 328   // --------------------------------------------------------------------------
 329   // Other private methods and data
 330   // --------------------------------------------------------------------------
 331
 332   void InitWebContents();
 333
 334   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 335
 336   blink::WebGestureEvent MakeGestureEvent(
 337       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 338
 339   gfx::Size GetViewportSizePix() const;
 340   gfx::Size GetViewportSizeOffsetPix() const;
 341
 342   void DeleteScaledSnapshotTexture();
 343
 344   bool OnMotionEvent(const ui::MotionEvent& event);
 345   void SendGestureEvent(const blink::WebGestureEvent& event);
 346
 347   // Update focus state of the RenderWidgetHostView.
 348   void SetFocusInternal(bool focused);
 349
 350   // Send device_orientation_ to renderer.
 351   void SendOrientationChangeEventInternal();
 352
 353   float dpi_scale() const { return dpi_scale_; }
 354
 355   // A weak reference to the Java ContentViewCore object.
 356   JavaObjectWeakGlobalRef java_ref_;
 357
 358   // Reference to the current WebContents used to determine how and what to
 359   // display in the ContentViewCore.
 360   WebContentsImpl* web_contents_;
 361
 362   // A compositor layer containing any layer that should be shown.
 363   scoped_refptr<cc::Layer> root_layer_;
 364
 365   // Device scale factor.
 366   float dpi_scale_;
 367
 368   // The Android view that can be used to add and remove decoration layers
 369   // like AutofillPopup.
 370   ui::ViewAndroid* view_android_;
 371
 372   // The owning window that has a hold of main application activity.
 373   ui::WindowAndroid* window_android_;
 374
 375   // The cache of device's current orientation set from Java side, this value
 376   // will be sent to Renderer once it is ready.
 377   int device_orientation_;
 378
 379   bool accessibility_enabled_;
 380
 381   // Manages injecting Java objects.
 382   scoped_ptr<JavaBridgeDispatcherHostManager>
 383       java_bridge_dispatcher_host_manager_;
 384
 385   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 386 };
 387
 388 bool RegisterContentViewCore(JNIEnv* env);
 389
 390 }  // namespace content
 391
 392 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_