Enable gesture events handling on Android.

content/browser/android/content_view_core_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_helper.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/i18n/rtl.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/process.h"
+#include "content/browser/renderer_host/render_widget_host_view_android.h"
 #include "content/public/browser/android/content_view_core.h"
 #include "content/public/browser/notification_observer.h"
 #include "googleurl/src/gurl.h"
 #include "ui/gfx/rect.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"

[jochen (gone - plz use gerrit), 2012/07/19 14:50:06]

nit. alphabetical ordering

 
 struct WebMenuItem;
 
 namespace content {
 class ContentViewClient;
 class RenderWidgetHostViewAndroid;
 
 // TODO(jrg): this is a shell.  Upstream the rest.
 class ContentViewCoreImpl : public ContentViewCore,
                             public NotificationObserver {
  public:
   ContentViewCoreImpl(JNIEnv* env,
                       jobject obj,
                       WebContents* web_contents);
   virtual void Destroy(JNIEnv* env, jobject obj);

[jochen (gone - plz use gerrit), 2012/07/19 14:50:06]

nit. missing override

 
   // --------------------------------------------------------------------------
   // Methods called from Java via JNI
   // --------------------------------------------------------------------------
 
   // Notifies the ContentViewCore that items were selected in the currently
   // showing select popup.
   void SelectPopupMenuItems(JNIEnv* env, jobject obj, jintArray indices);
 
   void LoadUrlWithoutUrlSanitization(JNIEnv* env,
                                      jobject,
                                      jstring jurl,
                                      int page_transition);
   void LoadUrlWithoutUrlSanitizationWithUserAgentOverride(
       JNIEnv* env,
       jobject,
       jstring jurl,
       int page_transition,
       jstring user_agent_override);
   base::android::ScopedJavaLocalRef<jstring> GetURL(JNIEnv* env, jobject) const;
   base::android::ScopedJavaLocalRef<jstring> GetTitle(
       JNIEnv* env, jobject obj) const;
   jboolean IsIncognito(JNIEnv* env, jobject obj);
   jboolean Crashed(JNIEnv* env, jobject obj) const { return tab_crashed_; }
+
+  jboolean TouchEvent(JNIEnv* env, jobject obj, jlong time_ms, jint type,

[jochen (gone - plz use gerrit), 2012/07/19 14:50:06]

c++ style guide says one parameter per line if it doesn't fit one line

+                      jobjectArray pts);
+
+  void ScrollBegin(JNIEnv* env, jobject obj, jlong time_ms,
+                   jint x, jint y);
+  void ScrollEnd(JNIEnv* env, jobject obj, jlong time_ms);
+  void ScrollBy(JNIEnv* env, jobject obj, jlong time_ms,
+                jint dx, jint dy);
+  void FlingStart(JNIEnv* env, jobject obj, jlong time_ms,
+                  jint x, jint y, jint vx, jint vy);
+  void FlingCancel(JNIEnv* env, jobject obj, jlong time_ms);
+  void SingleTap(JNIEnv* env, jobject obj, jlong time_ms,
+                 jint x, jint y, jboolean link_preview_tap);
+  void ShowPressState(JNIEnv* env, jobject obj, jlong time_ms,
+                      jint x, jint y);
+  void DoubleTap(JNIEnv* env, jobject obj, jlong time_ms,
+                 jint x, jint y) ;
+  void LongPress(JNIEnv* env, jobject obj, jlong time_ms,
+                 jint x, jint y, jboolean link_preview_tap);
+  void PinchBegin(JNIEnv* env, jobject obj, jlong time_ms,
+                  jint x, jint y);
+  void PinchEnd(JNIEnv* env, jobject obj, jlong time_ms);
+  void PinchBy(JNIEnv* env, jobject obj, jlong time_ms,
+               jint x, jint y, jfloat delta);
   jboolean CanGoBack(JNIEnv* env, jobject obj);
   jboolean CanGoForward(JNIEnv* env, jobject obj);
   jboolean CanGoToOffset(JNIEnv* env, jobject obj, jint offset);
   void GoBack(JNIEnv* env, jobject obj);
   void GoForward(JNIEnv* env, jobject obj);
   void GoToOffset(JNIEnv* env, jobject obj, jint offset);
   jdouble GetLoadProgress(JNIEnv* env, jobject obj) const;
   void StopLoading(JNIEnv* env, jobject obj);
   void Reload(JNIEnv* env, jobject obj);
   jboolean NeedsReload(JNIEnv* env, jobject obj);
   void ClearHistory(JNIEnv* env, jobject obj);
   void SetClient(JNIEnv* env, jobject obj, jobject jclient);
 
   // --------------------------------------------------------------------------
   // Public methods that call to Java via JNI
   // --------------------------------------------------------------------------
 
   // Creates a popup menu with |items|.
   // |multiple| defines if it should support multi-select.
   // If not |multiple|, |selected_item| sets the initially selected item.
   // Otherwise, item's "checked" flag selects it.
   void ShowSelectPopupMenu(const std::vector<WebMenuItem>& items,
                            int selected_item,
                            bool multiple);
 
   void OnTabCrashed(const base::ProcessHandle handle);
   void SetTitle(const string16& title);
 
   bool HasFocus();
+  void ConfirmTouchEvent(bool handled) OVERRIDE;

[jochen (gone - plz use gerrit), 2012/07/19 14:50:06]

why are these marked OVERRIDE?

+  void DidSetNeedTouchEvents(bool need_touch_events) OVERRIDE;
   void OnSelectionChanged(const std::string& text);
   void OnSelectionBoundsChanged(int startx,
                                 int starty,
                                 base::i18n::TextDirection start_dir,
                                 int endx,
                                 int endy,
                                 base::i18n::TextDirection end_dir);
 
   // Called when page loading begins.
   void DidStartLoading();
@@ skipping 26 matching lines @@
   // Private methods that call to Java via JNI
   // --------------------------------------------------------------------------
   virtual ~ContentViewCoreImpl();
 
   // --------------------------------------------------------------------------
   // Other private methods and data
   // --------------------------------------------------------------------------
 
   void InitJNI(JNIEnv* env, jobject obj);
 
+  RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
+
+  void SendGestureEvent(WebKit::WebInputEvent::Type type, long time_ms,
+                        int x, int y,
+                        float dx, float dy, bool link_preview_tap);
+
   void PostLoadUrl(const GURL& url);
 
   struct JavaObject;
   JavaObject* java_object_;
 
   // Reference to the current WebContents used to determine how and what to
   // display in the ContentViewCore.
   WebContents* web_contents_;
 
   // We only set this to be the delegate of the web_contents if we own it.
   scoped_ptr<ContentViewClient> content_view_client_;
 
   // Whether the renderer backing this ContentViewCore has crashed.
   bool tab_crashed_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 };  // namespace content

[jochen (gone - plz use gerrit), 2012/07/19 14:50:06]

no ;

 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_