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// Copyright 2017 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_GESTURE_LISTENER_MANAGER_H_
#define CONTENT_BROWSER_ANDROID_GESTURE_LISTENER_MANAGER_H_
#include "base/android/jni_weak_ref.h"
#include "base/android/scoped_java_ref.h"
#include "base/macros.h"
#include "content/browser/android/render_widget_host_connector.h"
#include "content/public/common/input_event_ack_state.h"
namespace blink {
class WebGestureEvent;
}
namespace gfx {
class SizeF;
class Vector2dF;
} // namespace gfx
namespace content {
class NavigationHandle;
class WebContentsImpl;
// Native class for GestureListenerManagerImpl.
class GestureListenerManager : public RenderWidgetHostConnector {
public:
GestureListenerManager(JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
WebContentsImpl* web_contents);
~GestureListenerManager() override;
void Reset(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
void GestureEventAck(const blink::WebGestureEvent& event,
InputEventAckState ack_result);
void DidStopFlinging();
bool FilterInputEvent(const blink::WebInputEvent& event);
// All sizes and offsets are in CSS pixels (except |top_show_pix|)
// as cached by the renderer.
void UpdateScrollInfo(const gfx::Vector2dF& scroll_offset,
float page_scale_factor,
const float min_page_scale,
const float max_page_scale,
const gfx::SizeF& content,
const gfx::SizeF& viewport,
const float content_offset,
const float top_shown_pix,
bool top_changed);
void UpdateOnTouchDown();
// RendetWidgetHostConnector implementation.
void UpdateRenderProcessConnection(
RenderWidgetHostViewAndroid* old_rwhva,
RenderWidgetHostViewAndroid* new_rhwva) override;
void OnNavigationFinished(NavigationHandle* navigation_handle);
void OnRenderProcessGone();
private:
class ResetScrollObserver;
void ResetPopupsAndInput(bool render_process_gone);
std::unique_ptr<ResetScrollObserver> reset_scroll_observer_;
WebContentsImpl* web_contents_;
// A weak reference to the Java GestureListenerManager object.
JavaObjectWeakGlobalRef java_ref_;
DISALLOW_COPY_AND_ASSIGN(GestureListenerManager);
};
} // namespace content
#endif // CONTENT_BROWSER_ANDROID_GESTURE_LISTENER_MANAGER_H_
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