@qooxdoo/framework
Version:
The JS Framework for Coders
134 lines (106 loc) • 2.92 kB
JavaScript
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2009 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:
* Fabian Jakobs (fjakobs)
************************************************************************ */
/**
* EXPERIMENTAL!
*
* Column selection manager
*/
qx.Class.define("qx.ui.virtual.selection.Column",
{
extend : qx.ui.virtual.selection.Row,
/*
*****************************************************************************
MEMBERS
*****************************************************************************
*/
members :
{
/**
* Returns the number of all items in the pane. This number may contain
* unselectable items as well.
*
* @return {Integer} number of items
*/
_getItemCount : function() {
return this._pane.getColumnConfig().getItemCount();
},
/*
---------------------------------------------------------------------------
IMPLEMENT ABSTRACT METHODS
---------------------------------------------------------------------------
*/
// overridden
_getSelectableFromPointerEvent : function(event)
{
var cell = this._pane.getCellAtPosition(
event.getDocumentLeft(),
event.getDocumentTop()
);
if (!cell) {
return null;
}
return this._isSelectable(cell.column) ? cell.column : null;
},
// overridden
_getRelatedSelectable : function(item, relation)
{
if (relation == "left")
{
var startIndex = item-1;
var endIndex = 0;
var increment = -1;
}
else if (relation == "right")
{
var startIndex = item+1;
var endIndex = this._getItemCount()-1;
var increment = 1;
}
else
{
return null;
}
for (var i=startIndex; i !== endIndex+increment; i += increment)
{
if (this._isSelectable(i)) {
return i;
}
}
return null;
},
// overridden
_scrollItemIntoView : function(item) {
if (this._autoScrollIntoView) {
this._pane.scrollColumnIntoView(item);
}
},
// overridden
_getSelectableLocationX : function(item)
{
var columnConfig = this._pane.getColumnConfig();
var itemLeft = columnConfig.getItemPosition(item);
var itemRight = itemLeft + columnConfig.getItemSize(item) - 1;
return {
left: itemLeft,
right: itemRight
};
},
// overridden
_getSelectableLocationY : function(item)
{
return {
top: 0,
bottom: this._pane.getRowConfig().getTotalSize() - 1
};
}
}
});