blob: 0d3953be04925df78559850f71e098d4225033d4 [file] [log] [blame]
// 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.
#include "base/callback.h"
#include "base/component_export.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
namespace ui {
class COMPONENT_EXPORT(EVENTS_OZONE) EventAutoRepeatHandler {
class Delegate {
// Gives the client a chance to flush the input queue
// cancelling possible spurios auto repeat keys.
// Useful under janky situations.
virtual void FlushInput(base::OnceClosure closure) = 0;
virtual void DispatchKey(unsigned int key,
bool down,
bool repeat,
base::TimeTicks timestamp,
int device_id) = 0;
explicit EventAutoRepeatHandler(Delegate* delegate);
void UpdateKeyRepeat(unsigned int key,
bool down,
bool suppress_auto_repeat,
int device_id);
void StopKeyRepeat();
// Configuration for key repeat.
bool IsAutoRepeatEnabled();
void SetAutoRepeatEnabled(bool enabled);
void SetAutoRepeatRate(const base::TimeDelta& delay,
const base::TimeDelta& interval);
void GetAutoRepeatRate(base::TimeDelta* delay, base::TimeDelta* interval);
static constexpr unsigned int kInvalidKey = 0;
void StartKeyRepeat(unsigned int key, int device_id);
void ScheduleKeyRepeat(const base::TimeDelta& delay);
void OnRepeatTimeout(unsigned int sequence);
void OnRepeatCommit(unsigned int sequence);
// Key repeat state.
bool auto_repeat_enabled_ = true;
unsigned int repeat_key_ = kInvalidKey;
unsigned int repeat_sequence_ = 0;
int repeat_device_id_ = 0;
base::TimeDelta repeat_delay_;
base::TimeDelta repeat_interval_;
Delegate* delegate_ = nullptr;
base::WeakPtrFactory<EventAutoRepeatHandler> weak_ptr_factory_{this};
} // namespace ui