ui/events/event_switches.cc

   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/events/event_switches.h"
   6
   7 namespace switches {
   8
   9 // Enable scroll prediction for scroll update events.
  10 const char kEnableScrollPrediction[] = "enable-scroll-prediction";
  11
  12 // Enable support for touch events.
  13 const char kTouchEvents[] = "touch-events";
  14
  15 // The values the kTouchEvents switch may have, as in --touch-events=disabled.
  16 //   auto: enabled at startup when an attached touchscreen is present.
  17 const char kTouchEventsAuto[] = "auto";
  18 //   enabled: touch events always enabled.
  19 const char kTouchEventsEnabled[] = "enabled";
  20 //   disabled: touch events are disabled.
  21 const char kTouchEventsDisabled[] = "disabled";
  22
  23 // Enable the unified gesture detector, instead of the aura gesture detector.
  24 const char kUnifiedGestureDetector[] = "unified-gesture-detector";
  25
  26 // The values the kUnifiedGestureDetector switch may have, as in
  27 // --unified-gesture-detector=disabled.
  28 //   auto: Same as disabled.
  29 const char kUnifiedGestureDetectorAuto[] = "auto";
  30 //   enabled: Use the unified gesture detector.
  31 const char kUnifiedGestureDetectorEnabled[] = "enabled";
  32 //   disabled: Use the aura gesture detector.
  33 const char kUnifiedGestureDetectorDisabled[] = "disabled";
  34
  35 #if defined(OS_LINUX)
  36 // Tells chrome to interpret events from these devices as touch events. Only
  37 // available with XInput 2 (i.e. X server 1.8 or above). The id's of the
  38 // devices can be retrieved from 'xinput list'.
  39 const char kTouchDevices[] = "touch-devices";
  40 #endif
  41
  42 #if defined(USE_XI2_MT) || defined(USE_OZONE)
  43 // The calibration factors given as "<left>,<right>,<top>,<bottom>".
  44 const char kTouchCalibration[] = "touch-calibration";
  45 #endif
  46
  47 }  // namespace switches