egroupware/etemplate/js/et2_dataview_view_partitionTree.js

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/**
* eGroupWare eTemplate2 - Class which contains an management tree for the grid rows
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage dataview
* @link http://www.egroupware.org
* @author Andreas Stöckel
* @copyright Stylite 2011
* @version $Id$
*/
"use strict"
/*egw:uses
et2_core_common; // for et2_range functions
et2_core_inheritance;
et2_dataview_interfaces;
et2_dataview_view_partitionOrganizationNode;
et2_dataview_view_partitionContainerNodes;
*/
/**
* Main class for the usage of the partition tree
*/
var et2_dataview_partitionTree = et2_dataview_partitionOrganizationNode.extend({
init: function(_dataProvider, _rowProvider, _avgHeight, _node) {
this._super(this);
this._avgHeight = _avgHeight;
this._node = _node;
this._count = _dataProvider.getCount();
this._dataProvider = _dataProvider;
this._rowProvider = _rowProvider;
et2_debug("Creating partition tree with ", this._count,
" elements of avgHeight ", this._avgHeight);
// Append a spacer node to the children
var ph = new et2_dataview_partitionSpacerNode(this, this._count,
this._avgHeight);
ph.setParent(this);
ph.initializeContainer();
this._children = [ph];
},
getAverageHeight: function() {
var data = {"count": 0, "height": 0};
this.getAvgHeightData(data);
if (data.count == 0)
{
return this._avgHeight;
}
return data.height / data.count;
},
/**
* Returns the actual count of managed objects inside of the tree - getCount
* in contrast returns the count of "virtual" objects including the
* spacers.
*/
getManagedCount: function() {
var data = {"count": 0, "height": 0};
this.getAvgHeightData(data);
return data.count;
},
/**
* Returns the node after which new nodes have to be inserted for the given
* index.
*/
getNodeAt: function(_idx) {
// Insert the given node to the top of the parent container
if (_idx < 0)
{
return this._node;
}
// Otherwise search for the tree node with that index
return this._super(_idx);
},
getRowProvider: function() {
return this._rowProvider;
},
getDataProvider: function() {
return this._dataProvider;
}
});