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Attach/Remove nodes to a tree view #19

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839199e
Able to attach new nodes to tree.
CodeReaper Oct 10, 2014
fa668f5
Recursively remove nodes, so we don't leave any hanging without a par…
CodeReaper Oct 16, 2014
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19 changes: 17 additions & 2 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -402,8 +402,23 @@ <h3>Public methods</h3>
<td>
<pre><code class="javascript">$('#node-2').treegrid('render');</code></pre>
</td>
</tr>

</tr>
<tr>
<td>attachNode</td>
<td>Attach node, set it up and render it</td>
<td>
<pre><code class="javascript">$('#tree').treegrid('attachNode',
$('&lt;tr class="treegrid-5"&gt;' +
'&lt;td&gt;Node 1-2-1&lt;/td&gt;&lt;td&gt;Additional info&lt;/td&gt;&lt;/tr&gt;'));</code></pre>
</td>
</tr>
<tr>
<td>removeNode</td>
<td>Remove node then redraw parent node</td>
<td>
<pre><code class="javascript">$('#node-2').treegrid('removeNode');</code></pre>
</td>
</tr>

</table>
<h3>Events</h3>
Expand Down
60 changes: 59 additions & 1 deletion js/jquery.treegrid.js
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,60 @@
$this.treegrid('initExpander').treegrid('initIndent').treegrid('initEvents').treegrid('initState').treegrid("initSettingsEvents");
});
},
/**
* Attach node
*
* @param {HtmlElement|String|Object} node
* @returns {Object[]}
*/
attachNode: function(node) {
return this.each(function() {
var $this = $(this);
var $node = $(node);
var $insertion;
var parentIndex = $this.treegrid('getSetting', 'getParentNodeId').apply($node);
if (parentIndex !== null) {
$insertion = $this.treegrid('getSetting', 'getNodeById').apply(this, [parentIndex, $this.treegrid('getTreeContainer')]);
} else {
$insertion = $this.find('tbody:last');
if ($insertion.length != 0) {
$this = $insertion;
}
$insertion = $this.find('tr:last');
}
if ($insertion.length != 0) {
$node.insertAfter($insertion).treegrid('initExpander').treegrid('initIndent').treegrid('initEvents').treegrid('initState').treegrid("initSettingsEvents");
$node.treegrid('getParentNode').treegrid('expand');
}
});
},
/**
* Remove node
*
* @returns {Object[]}
*/
removeNode: function() {
var removeChildren = function($e) {
$e.treegrid('getChildNodes').each(function(i,v) {
var $v = $(v);
removeChildren($v);
$v.treegrid('getChildNodes').remove();
});
$e.treegrid('getChildNodes').remove();
}

return this.each(function() {
var $this = $(this);
var $parent = $this.treegrid('getParentNode');
removeChildren($this);
$this.remove();
if ($parent.treegrid('getChildNodes').length == 0) {
$parent.trigger("collapse").treegrid('getSetting', 'getExpander').apply($parent)
.removeClass($parent.treegrid('getSetting', 'expanderCollapsedClass'))
.removeClass($parent.treegrid('getSetting', 'expanderExpandedClass'));
}
});
},
/**
* Initialize node events
*
Expand Down Expand Up @@ -230,7 +284,11 @@
* @returns {HtmlElement}
*/
getTreeContainer: function() {
return $(this).data('treegrid');
if ($(this).is("table")) {
return $(this).data('treegrid');
} else {
return $(this).closest('table').data('treegrid');
}
},
/**
* Set tree container
Expand Down
23 changes: 23 additions & 0 deletions tests/tests.js
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Expand Up @@ -191,4 +191,27 @@ test("Global Events test", function() {
$('#tree-4').find('#anode-1').treegrid("expand");
$('#tree-4').find('#anode-1').treegrid("collapse");
equal(globalCounter, count + 4);
});

test("Attaching and removing nodes", function() {
equal($('#tree-2').treegrid('getAllNodes').length, 11, "11");

var $leafNode = $('#tree-2').find('#tnode-1-1-2-1').clone();

$('#tree-2').find('#tnode-1-1-2-1').treegrid('removeNode');
equal($('#tree-2').treegrid('getAllNodes').length, 10, "10");

$('#tree-2').treegrid('attachNode', $leafNode);
equal($('#tree-2').treegrid('getAllNodes').length, 11, "11");

var $branchNode = $('#tree-2').find('#tnode-1-1-2').clone();
$('#tree-2').find('#tnode-1-1-2').treegrid('removeNode');
equal($('#tree-2').treegrid('getAllNodes').length, 9, "9");

$('#tree-2').treegrid('attachNode', $branchNode);
equal($('#tree-2').treegrid('getAllNodes').length, 10, "10");

$('#tree-2').treegrid('attachNode', $leafNode);
equal($('#tree-2').treegrid('getAllNodes').length, 11, "11");

});