1 // Copyright 2014 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.
5 #include "ui/events/ozone/evdev/libgestures_glue/gesture_timer_provider.h"
7 #include <gestures/gestures.h>
9 #include "base/timer/timer.h"
11 // libgestures requires that this be in the top level namespace.
14 GesturesTimer() : callback_(NULL), callback_data_(NULL) {}
17 void Set(stime_t delay, GesturesTimerCallback callback, void* callback_data) {
19 callback_data_ = callback_data;
20 timer_.Start(FROM_HERE,
21 base::TimeDelta::FromMicroseconds(
22 delay * base::Time::kMicrosecondsPerSecond),
24 &GesturesTimer::OnTimerExpired);
27 void Cancel() { timer_.Stop(); }
30 void OnTimerExpired() {
32 DCHECK(!clock_gettime(CLOCK_MONOTONIC, &ts));
33 stime_t next_delay = callback_(StimeFromTimespec(&ts), callback_data_);
34 if (next_delay >= 0) {
35 timer_.Start(FROM_HERE,
36 base::TimeDelta::FromMicroseconds(
37 next_delay * base::Time::kMicrosecondsPerSecond),
39 &GesturesTimer::OnTimerExpired);
43 GesturesTimerCallback callback_;
45 base::OneShotTimer<GesturesTimer> timer_;
52 GesturesTimer* GesturesTimerCreate(void* data) { return new GesturesTimer; }
54 void GesturesTimerSet(void* data,
57 GesturesTimerCallback callback,
58 void* callback_data) {
59 timer->Set(delay, callback, callback_data);
62 void GesturesTimerCancel(void* data, GesturesTimer* timer) { timer->Cancel(); }
64 void GesturesTimerFree(void* data, GesturesTimer* timer) { delete timer; }
68 const GesturesTimerProvider kGestureTimerProvider = {
69 GesturesTimerCreate, GesturesTimerSet, GesturesTimerCancel,