Method eventOccured

forms/multilistbox.cpp:166–233

}

void MultilistBox::eventOccured(Event *e)
{
	// MultilistBox does not pass mousedown and mouseup events when out of bounds
	if ((e->type() != EVENT_MOUSE_DOWN && e->type() != EVENT_MOUSE_UP) || eventIsWithin(e))
	{
		Control::eventOccured(e);
	}
	if (e->type() == EVENT_FORM_INTERACTION)
	{
		sp<Control> ctrl = e->forms().RaisedBy;
		sp<Control> child = ctrl->getAncestor(shared_from_this());

		switch (e->forms().EventFlag)
		{
			case FormEventType::MouseMove:
				if (scroller && (ctrl == shared_from_this() || child != nullptr))
				{
					scroller->scrollWheel(e);
				}

				// check hover
				if (ctrl == shared_from_this() || ctrl == scroller ||
				    !isPointInsideControlBounds(e, child))
				{
					child = nullptr;
				}
				if (hoveredItem != child)
				{
					hoveredItem = child;
					this->pushFormEvent(FormEventType::ListBoxChangeHover, e);
				}
				break;

			case FormEventType::MouseDown:
				// don't want to use the MouseClick event because drag&drop will be bugged
				// General concept: MouseDown - selection action; MouseUp - unselection, but not
				// during one click.
				if (ctrl == child && isPointInsideControlBounds(e, child) && ctrl != scroller)
				{
					selectedItem = child;
					selectionAction = selectedSet.find(child) == selectedSet.end();
					if (selectionAction && funcHandleSelection(e, child, true))
					{
						selectedSet.insert(child);
						this->pushFormEvent(FormEventType::ListBoxChangeSelected, e);
					}
				}
				break;

			case FormEventType::MouseUp:
				if (ctrl == child && isPointInsideControlBounds(e, child) && ctrl != scroller)
				{
					// unselect only if it hasnt been selected during this click
					if (!selectionAction && selectedItem == child &&
					    selectedSet.find(child) != selectedSet.end() &&
					    !funcHandleSelection(e, child, false))
					{
						selectedSet.erase(child);