/**
* See SWidget::OnMouseButtonDown.
*
* @param MyGeometry The Geometry of the widget receiving the event
* @param MouseEvent Information about the input event
*
* @return Whether the event was handled along with possible requests for the system to take action.
*/
FReply SCheckBox::OnMouseButtonDown( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if ( MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton )
{
bIsPressed = true;
if( ClickMethod == EButtonClickMethod::MouseDown )
{
ToggleCheckedState();
const ECheckBoxState State = IsCheckboxChecked.Get();
if(State == ECheckBoxState::Checked)
{
PlayCheckedSound();
}
else if(State == ECheckBoxState::Unchecked)
{
PlayUncheckedSound();
}
// Set focus to this button, but don't capture the mouse
return FReply::Handled().SetUserFocus(AsShared(), EFocusCause::Mouse);
}
else
{
// Capture the mouse, and also set focus to this button
return FReply::Handled().CaptureMouse(AsShared()).SetUserFocus(AsShared(), EFocusCause::Mouse);
}
}
else if ( MouseEvent.GetEffectingButton() == EKeys::RightMouseButton && OnGetMenuContent.IsBound() )
{
FWidgetPath WidgetPath = MouseEvent.GetEventPath() != nullptr ? *MouseEvent.GetEventPath() : FWidgetPath();
FSlateApplication::Get().PushMenu(
AsShared(),
WidgetPath,
OnGetMenuContent.Execute(),
MouseEvent.GetScreenSpacePosition(),
FPopupTransitionEffect( FPopupTransitionEffect::ContextMenu )
);
return FReply::Handled();
}
else
{
return FReply::Unhandled();
}
}
FReply SCheckBox::OnKeyUp( const FGeometry& MyGeometry, const FKeyboardEvent& InKeyboardEvent )
{
if ( InKeyboardEvent.GetKey() == EKeys::SpaceBar )
{
ToggleCheckedState();
const TAttribute<ESlateCheckBoxState::Type>& State = IsCheckboxChecked.Get();
if(State == ESlateCheckBoxState::Checked)
{
PlayCheckedSound();
}
else if(State == ESlateCheckBoxState::Unchecked)
{
PlayUncheckedSound();
}
return FReply::Handled();
}
return FReply::Unhandled();
}
/**
* See SWidget::OnMouseButtonUp.
*
* @param MyGeometry The Geometry of the widget receiving the event
* @param MouseEvent Information about the input event
*
* @return Whether the event was handled along with possible requests for the system to take action.
*/
FReply SCheckBox::OnMouseButtonUp( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
if ( MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton )
{
bIsPressed = false;
if( ClickMethod == EButtonClickMethod::MouseDown )
{
// NOTE: If we're configured to click on mouse-down, then we never capture the mouse thus
// may never receive an OnMouseButtonUp() call. We make sure that our bIsPressed
// state is reset by overriding OnMouseLeave().
}
else
{
const bool IsUnderMouse = MyGeometry.IsUnderLocation( MouseEvent.GetScreenSpacePosition() );
if ( IsUnderMouse )
{
// If we were asked to allow the button to be clicked on mouse up, regardless of whether the user
// pressed the button down first, then we'll allow the click to proceed without an active capture
if( ClickMethod == EButtonClickMethod::MouseUp || HasMouseCapture() )
{
ToggleCheckedState();
const TAttribute<ESlateCheckBoxState::Type>& State = IsCheckboxChecked.Get();
if(State == ESlateCheckBoxState::Checked)
{
PlayCheckedSound();
}
else if(State == ESlateCheckBoxState::Unchecked)
{
PlayUncheckedSound();
}
}
}
}
return FReply::Handled().ReleaseMouseCapture();
}
return FReply::Unhandled();
}
