Method setKeyFocusWidget

MyGUIEngine/src/MyGUI_InputManager.cpp:388–439

	}

	void InputManager::setKeyFocusWidget(Widget* _widget)
	{
		if (_widget == mWidgetKeyFocus)
			return;

		Widget* oldKeyFocus = mWidgetKeyFocus;
		mWidgetKeyFocus = nullptr;

		Widget* sharedRootFocus = nullptr; // possible shared parent for both old and new widget

		// recursively set root key focus
		Widget* rootFocus = _widget;
		while (rootFocus != nullptr)
		{
			if (rootFocus->getRootKeyFocus())
			{
				sharedRootFocus = rootFocus;
				break;
			}

			rootFocus->_setRootKeyFocus(true);
			rootFocus->_riseKeyChangeRootFocus(true);
			rootFocus = rootFocus->getParent();
		}

		// recursively reset root key focus
		rootFocus = oldKeyFocus;
		while (rootFocus != nullptr)
		{
			if (rootFocus == sharedRootFocus)
				break;

			rootFocus->_setRootKeyFocus(false);
			rootFocus->_riseKeyChangeRootFocus(false);
			rootFocus = rootFocus->getParent();
		}
		//-------------------------------------------------------------------------------------//

		mWidgetKeyFocus = _widget;

		if (oldKeyFocus)
		{
			oldKeyFocus->_riseKeyLostFocus(_widget);
		}

		if (_widget)
		{
			_widget->_riseKeySetFocus(mWidgetKeyFocus);
		}

		eventChangeKeyFocus(mWidgetKeyFocus);
	}

	void InputManager::_resetMouseFocusWidget()
	{