ui/events/mojo/event_constants.mojom

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module ui.mojom;

// Denotes during which phase of event targeting that an accelerator will be
// notified of an event. PRE_TARGET will be notified instead of the target
// window. POST_TARGET will be notified after the target window, and only if the
// event was not consumed by the target.
enum AcceleratorPhase {
  PRE_TARGET,
  POST_TARGET,
};

enum EventType {
  UNKNOWN,
  KEY_PRESSED,
  KEY_RELEASED,
  POINTER_CANCEL,
  POINTER_DOWN,
  POINTER_MOVE,
  POINTER_UP,
  MOUSE_EXIT,
  WHEEL,
};

// This mirrors ui::EventFlags
// TODO(morrita): Use shift operator once it is available.
const int32 kEventFlagNone               = 0x00000;
const int32 kEventFlagIsSynthesized      = 0x00001;
const int32 kEventFlagShiftDown          = 0x00002;
const int32 kEventFlagControlDown        = 0x00004;
const int32 kEventFlagAltDown            = 0x00008;
const int32 kEventFlagCommandDown        = 0x00010;
const int32 kEventFlagAltgrDown          = 0x00020;
const int32 kEventFlagMod3Down           = 0x00040;
const int32 kEventFlagNumLockOn          = 0x00080;
const int32 kEventFlagCapsLockOn         = 0x00100;
const int32 kEventFlagScrollLockOn       = 0x00200;
const int32 kEventFlagLeftMouseButton    = 0x00400;
const int32 kEventFlagMiddleMouseButton  = 0x00800;
const int32 kEventFlagRightMouseButton   = 0x01000;
const int32 kEventFlagBackMouseButton    = 0x02000;
const int32 kEventFlagForwardMouseButton = 0x04000;

const int32 kMouseEventFlagIsDoubleClick = 0x08000;
const int32 kMouseEventFlagIsTripleClick = 0x10000;
const int32 kMouseEventFlagIsNonClient   = 0x20000;

// TODO(erg): Move accessibility flags and maybe synthetic touch events here.

enum PointerKind {
  MOUSE,
  PEN,
  TOUCH,
};

enum WheelMode {
  PIXEL,
  LINE,
  PAGE,
  SCALING,
};