@qooxdoo/framework
Version:
The JS Framework for Coders
48 lines (41 loc) • 1.36 kB
JavaScript
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2014 1&1 Internet AG, Germany, http://www.1und1.de
License:
MIT: https://opensource.org/licenses/MIT
See the LICENSE file in the project's top-level directory for details.
Authors:
* Christopher Zuendorf (czuendorf)
************************************************************************ */
/**
* The mixin contains all functionality to provide methods
* for scroll container handling: determine the parent scroll container.
*
*/
qx.Mixin.define("qx.ui.mobile.container.MScrollHandling",
{
members :
{
/**
* Returns the parent scroll container of this widget.
* @return {qx.ui.mobile.container.Scroll} the parent scroll container or <code>null</code>
*/
_getParentScrollContainer: function() {
var scroll = this;
while (!(scroll instanceof qx.ui.mobile.container.Scroll)) {
if (scroll.getLayoutParent) {
var layoutParent = scroll.getLayoutParent();
if (layoutParent === null || layoutParent instanceof qx.ui.mobile.core.Root) {
return null;
}
scroll = layoutParent;
} else {
return null;
}
}
return scroll;
}
}
});