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      1 // Copyright 2013 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_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_ANDROID_H_
      6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_ANDROID_H_
      7 
      8 #include "base/android/jni_android.h"
      9 #include "base/time/time.h"
     10 #include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
     11 
     12 namespace content {
     13 
     14 class ContentViewCoreImpl;
     15 
     16 class SyntheticGestureTargetAndroid : public SyntheticGestureTargetBase {
     17  public:
     18   SyntheticGestureTargetAndroid(
     19       RenderWidgetHostImpl* host,
     20       base::android::ScopedJavaLocalRef<jobject> touch_event_synthesizer);
     21   virtual ~SyntheticGestureTargetAndroid();
     22 
     23   static bool RegisterTouchEventSynthesizer(JNIEnv* env);
     24 
     25   // SyntheticGestureTargetBase:
     26   virtual void DispatchWebTouchEventToPlatform(
     27       const blink::WebTouchEvent& web_touch,
     28       const ui::LatencyInfo& latency_info) OVERRIDE;
     29   virtual void DispatchWebMouseWheelEventToPlatform(
     30       const blink::WebMouseWheelEvent& web_wheel,
     31       const ui::LatencyInfo& latency_info) OVERRIDE;
     32   virtual void DispatchWebMouseEventToPlatform(
     33       const blink::WebMouseEvent& web_mouse,
     34       const ui::LatencyInfo& latency_info) OVERRIDE;
     35 
     36   // SyntheticGestureTarget:
     37   virtual SyntheticGestureParams::GestureSourceType
     38       GetDefaultSyntheticGestureSourceType() const OVERRIDE;
     39 
     40   virtual float GetTouchSlopInDips() const OVERRIDE;
     41 
     42   virtual float GetMinScalingSpanInDips() const OVERRIDE;
     43 
     44  private:
     45   // Enum values below need to be kept in sync with TouchEventSynthesizer.java
     46   enum Action {
     47     ActionInvalid = -1,
     48     ActionStart = 0,
     49     ActionMove = 1,
     50     ActionCancel = 2,
     51     ActionEnd = 3
     52   };
     53 
     54   void TouchSetPointer(JNIEnv* env, int index, int x, int y, int id);
     55   void TouchInject(
     56       JNIEnv* env, Action action, int pointer_count, int64 time_in_ms);
     57 
     58   base::android::ScopedJavaGlobalRef<jobject> touch_event_synthesizer_;
     59 
     60   DISALLOW_COPY_AND_ASSIGN(SyntheticGestureTargetAndroid);
     61 };
     62 
     63 }  // namespace content
     64 
     65 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_ANDROID_H_
     66