third_party/WebKit/public/platform/WebPointerProperties.h

   1 // Copyright (c) 2015 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 #ifndef WebPointerProperties_h
   6 #define WebPointerProperties_h
   7
   8 namespace blink {
   9
  10 // This class encapsulates the properties that are common between mouse and
  11 // pointer events and touch points as we transition towards the unified pointer
  12 // event model.
  13 // TODO(e_hakkinen): Replace WebTouchEvent with WebPointerEvent, remove
  14 // WebTouchEvent and WebTouchPoint and merge this into WebPointerEvent.
  15 class WebPointerProperties {
  16 public:
  17     WebPointerProperties()
  18         : button(ButtonNone)
  19         , id(0)
  20         , force(0.f)
  21         , tiltX(0)
  22         , tiltY(0)
  23         , pointerType(PointerTypeUnknown)
  24     {
  25     }
  26
  27     enum Button {
  28         ButtonNone = -1,
  29         ButtonLeft,
  30         ButtonMiddle,
  31         ButtonRight
  32     };
  33
  34     enum PointerType {
  35         PointerTypeUnknown,
  36         PointerTypeMouse,
  37         PointerTypePen,
  38         PointerTypeTouch
  39     };
  40
  41     Button button;
  42
  43     int id;
  44     float force;
  45
  46     // Tilt of a pen stylus from surface normal as plane angles in degrees,
  47     // Values lie in [-90,90]. A positive tiltX is to the right and a positive
  48     // tiltY is towards the user.
  49     int tiltX;
  50     int tiltY;
  51
  52     PointerType pointerType;
  53 };
  54
  55 } // namespace blink
  56
  57 #endif