/// <summary>
/// This is the method that responds to the MouseEvent event.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (IsDragging)
{
if (e.MouseDevice.LeftButton == MouseButtonState.Pressed)
{
Point thumbCoordPosition = e.GetPosition(this);
// Get client point then convert to screen point
Point screenCoordPosition = SafeSecurityHelper.ClientToScreen(this, thumbCoordPosition);
// We will fire DragDelta event only when the mouse is really moved
if (screenCoordPosition != _previousScreenCoordPosition)
{
_previousScreenCoordPosition = screenCoordPosition;
e.Handled = true;
RaiseEvent(new DragDeltaEventArgs(thumbCoordPosition.X - _originThumbPoint.X,
thumbCoordPosition.Y - _originThumbPoint.Y));
}
}
else
{
if (e.MouseDevice.Captured == this)
{
ReleaseMouseCapture();
}
ClearValue(IsDraggingPropertyKey);
_originThumbPoint.X = 0;
_originThumbPoint.Y = 0;
}
}
}
/// <summary>Provides class handling for the <see cref="E:System.Windows.UIElement.MouseMove" /> event. </summary>
/// <param name="e">The event data.</param>
// Token: 0x060060C2 RID: 24770 RVA: 0x001B1D40 File Offset: 0x001AFF40
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (this.IsDragging)
{
if (e.MouseDevice.LeftButton == MouseButtonState.Pressed)
{
Point position = e.GetPosition(this);
Point point = SafeSecurityHelper.ClientToScreen(this, position);
if (point != this._previousScreenCoordPosition)
{
this._previousScreenCoordPosition = point;
e.Handled = true;
base.RaiseEvent(new DragDeltaEventArgs(position.X - this._originThumbPoint.X, position.Y - this._originThumbPoint.Y));
return;
}
}
else
{
if (e.MouseDevice.Captured == this)
{
base.ReleaseMouseCapture();
}
base.ClearValue(Thumb.IsDraggingPropertyKey);
this._originThumbPoint.X = 0.0;
this._originThumbPoint.Y = 0.0;
}
}
}
/// <summary>
/// This is the method that responds to the MouseButtonEvent event.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (!IsDragging)
{
e.Handled = true;
Focus();
CaptureMouse();
SetValue(IsDraggingPropertyKey, true);
_originThumbPoint = e.GetPosition(this);
_previousScreenCoordPosition = _originScreenCoordPosition = SafeSecurityHelper.ClientToScreen(this, _originThumbPoint);
bool exceptionThrown = true;
try
{
RaiseEvent(new DragStartedEventArgs(_originThumbPoint.X, _originThumbPoint.Y));
exceptionThrown = false;
}
finally
{
if (exceptionThrown)
{
CancelDrag();
}
}
}
else
{
// This is weird, Thumb shouldn't get MouseLeftButtonDown event while dragging.
// This may be the case that something ate MouseLeftButtonUp event, so Thumb never had a chance to
// reset IsDragging property
Debug.Assert(false, "Got MouseLeftButtonDown event while dragging!");
}
base.OnMouseLeftButtonDown(e);
}
/// <summary>
/// This is the method that responds to the MouseButtonEvent event.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (IsMouseCaptured && IsDragging)
{
e.Handled = true;
ClearValue(IsDraggingPropertyKey);
ReleaseMouseCapture();
Point pt = SafeSecurityHelper.ClientToScreen(this, e.MouseDevice.GetPosition(this));
RaiseEvent(new DragCompletedEventArgs(pt.X - _originScreenCoordPosition.X, pt.Y - _originScreenCoordPosition.Y, false));
}
base.OnMouseLeftButtonUp(e);
}
/// <summary>Provides class handling for the <see cref="E:System.Windows.ContentElement.MouseLeftButtonDown" /> event. </summary>
/// <param name="e">The event data.</param>
// Token: 0x060060BF RID: 24767 RVA: 0x001B1BF0 File Offset: 0x001AFDF0
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (!this.IsDragging)
{
e.Handled = true;
base.Focus();
base.CaptureMouse();
base.SetValue(Thumb.IsDraggingPropertyKey, true);
this._originThumbPoint = e.GetPosition(this);
this._previousScreenCoordPosition = (this._originScreenCoordPosition = SafeSecurityHelper.ClientToScreen(this, this._originThumbPoint));
bool flag = true;
try
{
base.RaiseEvent(new DragStartedEventArgs(this._originThumbPoint.X, this._originThumbPoint.Y));
flag = false;
}
finally
{
if (flag)
{
this.CancelDrag();
}
}
}
base.OnMouseLeftButtonDown(e);
}