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,
31 scoped_ptr<Delegate> delegate)
32 : EventConverterEvdev(fd, path, id), delegate_(delegate.Pass()) {
33 memset(&evdev_, 0, sizeof(evdev_));
34 evdev_.log = OnLogMessage;
35 evdev_.log_udata = this;
36 evdev_.syn_report = OnSynReport;
37 evdev_.syn_report_udata = this;
40 memset(&evstate_, 0, sizeof(evstate_));
41 evdev_.evstate = &evstate_;
46 delegate_->OnLibEvdevCrosOpen(&evdev_, &evstate_);
49 EventReaderLibevdevCros::~EventReaderLibevdevCros() {
54 EventReaderLibevdevCros::Delegate::~Delegate() {}
56 void EventReaderLibevdevCros::OnFileCanReadWithoutBlocking(int fd) {
57 if (EvdevRead(&evdev_)) {
58 if (errno == EINTR || errno == EAGAIN)
61 PLOG(ERROR) << "error reading device " << path_.value();
68 void EventReaderLibevdevCros::OnSynReport(void* data,
69 EventStateRec* evstate,
71 EventReaderLibevdevCros* reader = static_cast<EventReaderLibevdevCros*>(data);
72 reader->delegate_->OnLibEvdevCrosEvent(&reader->evdev_, evstate, *tv);
76 void EventReaderLibevdevCros::OnLogMessage(void* data,
82 if (level >= LOGLEVEL_ERROR)
83 LOG(ERROR) << "libevdev: " << FormatLog(fmt, args);
84 else if (level >= LOGLEVEL_WARNING)
85 LOG(WARNING) << "libevdev: " << FormatLog(fmt, args);
87 VLOG(3) << "libevdev: " << FormatLog(fmt, args);