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| 1 // Copyright 2013 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/base/touch/touch_enabled.h" | |
| 6 #include "base/command_line.h" | |
| 7 #include "base/logging.h" | |
| 8 #include "ui/base/touch/touch_device.h" | |
| 9 #include "ui/base/ui_base_switches.h" | |
| 10 #include "ui/events/event_switches.h" | |
| 11 | |
| 12 namespace ui { | |
| 13 | |
| 14 bool AreTouchEventsEnabled() { | |
| 15 const base::CommandLine& command_line = | |
| 16 *base::CommandLine::ForCurrentProcess(); | |
| 17 const std::string touch_enabled_switch = | |
| 18 command_line.HasSwitch(switches::kTouchEvents) ? | |
| 19 command_line.GetSwitchValueASCII(switches::kTouchEvents) : | |
| 20 switches::kTouchEventsAuto; | |
| 21 | |
| 22 if (touch_enabled_switch.empty() || | |
| 23 touch_enabled_switch == switches::kTouchEventsEnabled) | |
| 24 return true; | |
| 25 if (touch_enabled_switch == switches::kTouchEventsAuto) | |
| 26 return IsTouchDevicePresent(); | |
| 27 if (touch_enabled_switch != switches::kTouchEventsDisabled) | |
| 28 LOG(ERROR) << "Invalid --touch-events option: " << touch_enabled_switch; | |
| 29 return false; | |
| 30 } | |
| 31 | |
| 32 } // namespace ui | |
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