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// Copyright 2013 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.
#include "content/browser/renderer_host/input/synthetic_gesture_target_android.h"
#include "content/browser/android/content_view_core_impl.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "jni/TouchEventSynthesizer_jni.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "ui/gfx/android/view_configuration.h"
#include "ui/gfx/screen.h"
using blink::WebTouchEvent;
namespace content {
SyntheticGestureTargetAndroid::SyntheticGestureTargetAndroid(
RenderWidgetHostImpl* host,
base::android::ScopedJavaLocalRef<jobject> touch_event_synthesizer)
: SyntheticGestureTargetBase(host),
touch_event_synthesizer_(touch_event_synthesizer) {
DCHECK(!touch_event_synthesizer_.is_null());
}
SyntheticGestureTargetAndroid::~SyntheticGestureTargetAndroid() {
}
bool SyntheticGestureTargetAndroid::RegisterTouchEventSynthesizer(JNIEnv* env) {
return RegisterNativesImpl(env);
}
void SyntheticGestureTargetAndroid::TouchSetPointer(
JNIEnv* env, int index, int x, int y, int id) {
TRACE_EVENT0("input", "SyntheticGestureTargetAndroid::TouchSetPointer");
Java_TouchEventSynthesizer_setPointer(env, touch_event_synthesizer_.obj(),
index, x, y, id);
}
void SyntheticGestureTargetAndroid::TouchInject(
JNIEnv* env, Action action, int pointer_count, int64 time_in_ms) {
TRACE_EVENT0("input", "SyntheticGestureTargetAndroid::TouchInject");
Java_TouchEventSynthesizer_inject(env, touch_event_synthesizer_.obj(),
static_cast<int>(action), pointer_count,
time_in_ms);
}
void SyntheticGestureTargetAndroid::DispatchWebTouchEventToPlatform(
const blink::WebTouchEvent& web_touch, const ui::LatencyInfo&) {
JNIEnv* env = base::android::AttachCurrentThread();
SyntheticGestureTargetAndroid::Action action =
SyntheticGestureTargetAndroid::ActionInvalid;
switch (web_touch.type) {
case blink::WebInputEvent::TouchStart:
action = SyntheticGestureTargetAndroid::ActionStart;
break;
case blink::WebInputEvent::TouchMove:
action = SyntheticGestureTargetAndroid::ActionMove;
break;
case blink::WebInputEvent::TouchCancel:
action = SyntheticGestureTargetAndroid::ActionCancel;
break;
case blink::WebInputEvent::TouchEnd:
action = SyntheticGestureTargetAndroid::ActionEnd;
break;
default:
NOTREACHED();
}
const unsigned num_touches = web_touch.touchesLength;
for (unsigned i = 0; i < num_touches; ++i) {
const blink::WebTouchPoint* point = &web_touch.touches[i];
TouchSetPointer(env, i, point->position.x, point->position.y, point->id);
}
TouchInject(env, action, num_touches,
static_cast<int64>(web_touch.timeStampSeconds * 1000.0));
}
void SyntheticGestureTargetAndroid::DispatchWebMouseWheelEventToPlatform(
const blink::WebMouseWheelEvent& web_wheel, const ui::LatencyInfo&) {
CHECK(false);
}
void SyntheticGestureTargetAndroid::DispatchWebMouseEventToPlatform(
const blink::WebMouseEvent& web_mouse, const ui::LatencyInfo&) {
CHECK(false);
}
SyntheticGestureParams::GestureSourceType
SyntheticGestureTargetAndroid::GetDefaultSyntheticGestureSourceType() const {
return SyntheticGestureParams::TOUCH_INPUT;
}
float SyntheticGestureTargetAndroid::GetTouchSlopInDips() const {
float device_scale_factor =
gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
return gfx::ViewConfiguration::GetTouchSlopInPixels() / device_scale_factor;
}
float SyntheticGestureTargetAndroid::GetMinScalingSpanInDips() const {
float device_scale_factor =
gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
return
gfx::ViewConfiguration::GetMinScalingSpanInPixels() / device_scale_factor;
}
} // namespace content
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