public void ProcessRawEvent(RawInputEventArgs ev)
{
var args = (RawTouchEventArgs)ev;
if (!_pointers.TryGetValue(args.TouchPointId, out var pointer))
{
if (args.Type == RawPointerEventType.TouchEnd)
{
return;
}
var hit = args.Root.InputHitTest(args.Position);
_pointers[args.TouchPointId] = pointer = new Pointer(Pointer.GetNextFreeId(),
PointerType.Touch, _pointers.Count == 0);
pointer.Capture(hit);
}
var target = pointer.Captured ?? args.Root;
if (args.Type == RawPointerEventType.TouchBegin)
{
target.RaiseEvent(new PointerPressedEventArgs(target, pointer,
args.Root, args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, true),
PointerUpdateKind.LeftButtonPressed),
GetKeyModifiers(args.InputModifiers)));
}
if (args.Type == RawPointerEventType.TouchEnd)
{
_pointers.Remove(args.TouchPointId);
using (pointer)
{
target.RaiseEvent(new PointerReleasedEventArgs(target, pointer,
args.Root, args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, false),
PointerUpdateKind.LeftButtonReleased),
GetKeyModifiers(args.InputModifiers), MouseButton.Left));
}
}
if (args.Type == RawPointerEventType.TouchCancel)
{
_pointers.Remove(args.TouchPointId);
using (pointer)
pointer.Capture(null);
}
if (args.Type == RawPointerEventType.TouchUpdate)
{
var modifiers = GetModifiers(args.InputModifiers, pointer.IsPrimary);
target.RaiseEvent(new PointerEventArgs(InputElement.PointerMovedEvent, target, pointer, args.Root,
args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, true), PointerUpdateKind.Other),
GetKeyModifiers(args.InputModifiers)));
}
}
private bool MouseDown(IMouseDevice device, ulong timestamp, IInputElement root, Point p,
PointerPointProperties properties,
KeyModifiers inputModifiers, IInputElement?hitTest)
{
device = device ?? throw new ArgumentNullException(nameof(device));
root = root ?? throw new ArgumentNullException(nameof(root));
var source = _pointer.Captured ?? root.InputHitTest(p);
if (source != null)
{
_pointer.Capture(source);
if (source != null)
{
var settings = AvaloniaLocator.Current.GetService <IPlatformSettings>();
var doubleClickTime = settings?.DoubleClickTime.TotalMilliseconds ?? 500;
var doubleClickSize = settings?.DoubleClickSize ?? new Size(4, 4);
if (!_lastClickRect.Contains(p) || timestamp - _lastClickTime > doubleClickTime)
{
_clickCount = 0;
}
++_clickCount;
_lastClickTime = timestamp;
_lastClickRect = new Rect(p, new Size())
.Inflate(new Thickness(doubleClickSize.Width / 2, doubleClickSize.Height / 2));
_lastMouseDownButton = properties.PointerUpdateKind.GetMouseButton();
var e = new PointerPressedEventArgs(source, _pointer, root, p, timestamp, properties, inputModifiers, _clickCount);
source.RaiseEvent(e);
return(e.Handled);
}
}
return(false);
}
public void ProcessRawEvent(RawInputEventArgs ev)
{
if (ev.Handled || _disposed)
{
return;
}
var args = (RawTouchEventArgs)ev;
if (!_pointers.TryGetValue(args.TouchPointId, out var pointer))
{
if (args.Type == RawPointerEventType.TouchEnd)
{
return;
}
var hit = args.Root.InputHitTest(args.Position);
_pointers[args.TouchPointId] = pointer = new Pointer(Pointer.GetNextFreeId(),
PointerType.Touch, _pointers.Count == 0);
pointer.Capture(hit);
}
var target = pointer.Captured ?? args.Root;
if (args.Type == RawPointerEventType.TouchBegin)
{
if (_pointers.Count > 1)
{
_clickCount = 1;
_lastClickTime = 0;
_lastClickRect = new Rect();
}
else
{
var settings = AvaloniaLocator.Current.GetRequiredService <IPlatformSettings>();
if (!_lastClickRect.Contains(args.Position) ||
ev.Timestamp - _lastClickTime > settings.TouchDoubleClickTime.TotalMilliseconds)
{
_clickCount = 0;
}
++_clickCount;
_lastClickTime = ev.Timestamp;
_lastClickRect = new Rect(args.Position, new Size())
.Inflate(new Thickness(settings.TouchDoubleClickSize.Width / 2, settings.TouchDoubleClickSize.Height / 2));
}
target.RaiseEvent(new PointerPressedEventArgs(target, pointer,
args.Root, args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, true),
PointerUpdateKind.LeftButtonPressed),
GetKeyModifiers(args.InputModifiers), _clickCount));
}
if (args.Type == RawPointerEventType.TouchEnd)
{
_pointers.Remove(args.TouchPointId);
using (pointer)
{
target.RaiseEvent(new PointerReleasedEventArgs(target, pointer,
args.Root, args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, false),
PointerUpdateKind.LeftButtonReleased),
GetKeyModifiers(args.InputModifiers), MouseButton.Left));
}
}
if (args.Type == RawPointerEventType.TouchCancel)
{
_pointers.Remove(args.TouchPointId);
using (pointer)
pointer.Capture(null);
}
if (args.Type == RawPointerEventType.TouchUpdate)
{
var modifiers = GetModifiers(args.InputModifiers, pointer.IsPrimary);
target.RaiseEvent(new PointerEventArgs(InputElement.PointerMovedEvent, target, pointer, args.Root,
args.Position, ev.Timestamp,
new PointerPointProperties(GetModifiers(args.InputModifiers, true), PointerUpdateKind.Other),
GetKeyModifiers(args.InputModifiers), args.IntermediatePoints));
}
}
/// <summary>
/// Captures mouse input to the specified control.
/// </summary>
/// <param name="control">The control.</param>
/// <remarks>
/// When an element captures the mouse, it receives mouse input whether the cursor is
/// within the control's bounds or not. The current mouse capture control is exposed
/// by the <see cref="Captured"/> property.
/// </remarks>
public void Capture(IInputElement control)
{
_pointer.Capture(control);
}
void IPointerDevice.Capture(IInputElement?control) => _lastPointer?.Capture(control);
