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/event_reader_libevdev_cros.h"
8 #include <libevdev/libevdev.h>
9 #include <linux/input.h>
11 #include "base/message_loop/message_loop.h"
12 #include "base/strings/string_util.h"
13 #include "base/strings/stringprintf.h"
19 std::string FormatLog(const char* fmt, va_list args) {
20 std::string msg = base::StringPrintV(fmt, args);
21 if (!msg.empty() && msg[msg.size() - 1] == '\n')
22 msg.erase(msg.end() - 1, msg.end());
28 EventReaderLibevdevCros::EventReaderLibevdevCros(int fd,
29 const base::FilePath& path,
30 scoped_ptr<Delegate> delegate)
31 : EventConverterEvdev(fd, path), delegate_(delegate.Pass()) {
32 memset(&evdev_, 0, sizeof(evdev_));
33 evdev_.log = OnLogMessage;
34 evdev_.log_udata = this;
35 evdev_.syn_report = OnSynReport;
36 evdev_.syn_report_udata = this;
39 memset(&evstate_, 0, sizeof(evstate_));
40 evdev_.evstate = &evstate_;
45 delegate_->OnLibEvdevCrosOpen(&evdev_, &evstate_);
48 EventReaderLibevdevCros::~EventReaderLibevdevCros() {
53 EventReaderLibevdevCros::Delegate::~Delegate() {}
55 void EventReaderLibevdevCros::OnFileCanReadWithoutBlocking(int fd) {
56 if (EvdevRead(&evdev_)) {
57 if (errno == EINTR || errno == EAGAIN)
60 PLOG(ERROR) << "error reading device " << path_.value();
67 void EventReaderLibevdevCros::OnSynReport(void* data,
68 EventStateRec* evstate,
70 EventReaderLibevdevCros* reader = static_cast<EventReaderLibevdevCros*>(data);
71 reader->delegate_->OnLibEvdevCrosEvent(&reader->evdev_, evstate, *tv);
75 void EventReaderLibevdevCros::OnLogMessage(void* data,
81 if (level >= LOGLEVEL_ERROR)
82 LOG(ERROR) << "libevdev: " << FormatLog(fmt, args);
83 else if (level >= LOGLEVEL_WARNING)
84 LOG(WARNING) << "libevdev: " << FormatLog(fmt, args);
86 VLOG(3) << "libevdev: " << FormatLog(fmt, args);