ui/events/ozone/evdev/libgestures_glue/gesture_logging.cc

   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.
   4
   5 #include "ui/events/ozone/evdev/libgestures_glue/gesture_logging.h"
   6
   7 #include <gestures/gestures.h>
   8 #include <stdarg.h>
   9
  10 #include "base/logging.h"
  11 #include "base/strings/stringprintf.h"
  12
  13 namespace {
  14
  15 std::string FormatLog(const char* fmt, va_list args) {
  16   std::string msg = base::StringPrintV(fmt, args);
  17   if (!msg.empty() && msg[msg.size() - 1] == '\n')
  18     msg.erase(msg.end() - 1, msg.end());
  19   return msg;
  20 }
  21
  22 }  // namespace
  23
  24 void gestures_log(int verb, const char* fmt, ...) {
  25   va_list args;
  26   va_start(args, fmt);
  27   if (verb <= GESTURES_LOG_ERROR)
  28     LOG(ERROR) << "gestures: " << FormatLog(fmt, args);
  29   else if (verb <= GESTURES_LOG_INFO)
  30     VLOG(3) << "gestures: " << FormatLog(fmt, args);
  31   va_end(args);
  32 }