content/browser/renderer_host/input/synthetic_gesture_target_android.h

   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   ~SyntheticGestureTargetAndroid() override;
  22
  23   static bool RegisterMotionEventSynthesizer(JNIEnv* env);
  24
  25   // SyntheticGestureTargetBase:
  26   void DispatchWebTouchEventToPlatform(
  27       const blink::WebTouchEvent& web_touch,
  28       const ui::LatencyInfo& latency_info) override;
  29   void DispatchWebMouseWheelEventToPlatform(
  30       const blink::WebMouseWheelEvent& web_wheel,
  31       const ui::LatencyInfo& latency_info) override;
  32   void DispatchWebMouseEventToPlatform(
  33       const blink::WebMouseEvent& web_mouse,
  34       const ui::LatencyInfo& latency_info) override;
  35
  36   // SyntheticGestureTarget:
  37   SyntheticGestureParams::GestureSourceType
  38   GetDefaultSyntheticGestureSourceType() const override;
  39
  40   float GetTouchSlopInDips() const override;
  41
  42   float GetMinScalingSpanInDips() const override;
  43
  44  private:
  45   // Enum values below need to be kept in sync with MotionEventSynthesizer.java.
  46   enum Action {
  47     ActionInvalid = -1,
  48     ActionStart = 0,
  49     ActionMove = 1,
  50     ActionCancel = 2,
  51     ActionEnd = 3,
  52     ActionScroll = 4
  53   };
  54
  55   void TouchSetPointer(JNIEnv* env, int index, int x, int y, int id);
  56   void TouchSetScrollDeltas(JNIEnv* env, int x, int y, int dx, int dy);
  57   void TouchInject(JNIEnv* env,
  58                    Action action,
  59                    int pointer_count,
  60                    int64 time_in_ms);
  61
  62   base::android::ScopedJavaGlobalRef<jobject> touch_event_synthesizer_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(SyntheticGestureTargetAndroid);
  65 };
  66
  67 }  // namespace content
  68
  69 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_ANDROID_H_