[OPEN-1001] Memory leak on buttons inside a window

[VT-TizianoF]

Ext version tested:

• Ext 3.2.1

Adapter used:

• ext

css used:

• only default ext-all.css

Browser versions tested against:

• IE8

Operating System:

• WinXP Pro

Description:
Using sIEve, I see that after a 'show' and then a 'close' by clicking the button, the number of dom nodes increase by 3.

Apart from the shadow node (that's normal), there are two nodes that do not get GC:

Here is the copy/paste from sIEve:

file://C:\Documents and Settings\FurlanTi\Desktop\ext-3.2.1\examples\leak.html	(1 reference)
	nextSibling	[null object]
	onresizeend	
	onrowenter	
	aria-haspopup	
	childNodes	[object]
	ondragleave	
	canHaveHTML	-1
	onbeforepaste	
	ondragover	
	onbeforecopy	
	aria-disabled	
	onpage	
	recordNumber	
	previousSibling	[null object]
	nodeName	TABLE
	onbeforeactivate	
	accessKey	
	currentStyle	[object]
	scrollLeft	0
	onbeforeeditfocus	
	oncontrolselect	
	aria-hidden	
	onblur	
	hideFocus	0
	clientHeight	0
	style	[object]
	onbeforedeactivate	
	dir	
	aria-expanded	
	onkeydown	
	nodeType	1
	ondragstart	
	onscroll	
	onpropertychange	
	ondragenter	
	id	ext-comp-1003
	aria-level	0
	onrowsinserted	
	scopeName	HTML
	lang	
	onmouseup	
	aria-busy	
	oncontextmenu	
	language	
	scrollTop	0
	offsetWidth	0
	onbeforeupdate	
	onreadystatechange	
	onmouseenter	
	filters	(unknown)
	onresize	
	isContentEditable	0
	aria-checked	
	aria-readonly	
	oncopy	
	onselectstart	
	scrollHeight	0
	onmove	
	ondragend	
	onrowexit	
	lastChild	[null object]
	aria-secret	
	onactivate	
	canHaveChildren	-1
	onfocus	
	onfocusin	
	isMultiLine	-1
	onmouseover	
	offsetTop	0
	oncut	
	parentNode	[object]
	tagName	TABLE
	className	x-btn x-btn-noicon x-btn-over x-btn-focus
	onmousemove	
	title	
	role	
	behaviorUrns	[object]
	onfocusout	
	onfilterchange	
	disabled	0
	parentTextEdit	[null object]
	ownerDocument	[object]
	offsetParent	[null object]
	aria-posinset	0
	ondrop	
	ondblclick	
	onrowsdelete	
	tabIndex	0
	onkeypress	
	aria-relevant	
	onlosecapture	
	innerText	
	aria-live	
	parentElement	[null object]
	ondeactivate	
	aria-labelledby	
	aria-pressed	
	children	[object]
	ondatasetchanged	
	ondataavailable	
	aria-invalid	
	onafterupdate	
	nodeValue	
	onmousewheel	
	onkeyup	
	readyState	complete
	onmovestart	
	aria-valuenow	
	aria-selected	
	onmouseout	
	aria-owns	
	aria-valuemax	
	onmoveend	
	contentEditable	inherit
	document	[object]
	firstChild	[null object]
	sourceIndex	0
	outerText	
	isTextEdit	0
	isDisabled	0
	oncellchange	
	runtimeStyle	[object]
	scrollWidth	0
	aria-valuemin	
	onlayoutcomplete	
	onhelp	
	attributes	[object]
	offsetHeight	0
	onerrorupdate	
	onmousedown	
	clientTop	0
	aria-setsize	0
	clientWidth	0
	onpaste	
	tagUrn	
	onmouseleave	
	onclick	
	outerHTML	
<TABLE style="WIDTH: 75px" id=ext-comp-1003 class="x-btn x-btn-noicon x-btn-over x-btn-focus" cellSpacing=0 __sIEve_hookedNode="true"></TABLE>
	ondrag	
	aria-controls	
	onresizestart	
	aria-flowto	
	ondatasetcomplete	
	aria-required	
	clientLeft	0
	aria-describedby	
	all	[object]
	onbeforecut	
	innerHTML	
	aria-activedescendant	
	aria-multiselectable	
	offsetLeft	0
	tBodies	[object]
	border	
	rules	
	cellSpacing	0
	borderColor	
	rows	[object]
	summary	
	caption	[null object]
	borderColorLight	
	dataFld	
	borderColorDark	
	dataSrc	
	tFoot	[null object]
	cellPadding	
	dataPageSize	0
	width	
	background	
	bgColor	
	frame	
	dataFormatAs	
	tHead	[null object]
	align	
	height	
	cells	[object]
	cols	0
	cloneNode	[object]


file://C:\Documents and Settings\FurlanTi\Desktop\ext-3.2.1\examples\leak.html	(1 reference)
	nextSibling	[null object]
	onresizeend	
	onrowenter	
	aria-haspopup	
	childNodes	[object]
	ondragleave	
	canHaveHTML	-1
	onbeforepaste	
	ondragover	
	onbeforecopy	
	aria-disabled	
	onpage	
	recordNumber	
	previousSibling	[null object]
	nodeName	BUTTON
	onbeforeactivate	
	accessKey	
	currentStyle	[object]
	scrollLeft	0
	onbeforeeditfocus	
	oncontrolselect	
	aria-hidden	
	onblur	
	hideFocus	0
	clientHeight	0
	style	[object]
	onbeforedeactivate	
	dir	
	aria-expanded	
	onkeydown	
	nodeType	1
	ondragstart	
	onscroll	
	onpropertychange	
	ondragenter	
	id	ext-gen17
	aria-level	0
	onrowsinserted	
	scopeName	HTML
	lang	
	onmouseup	
	aria-busy	
	oncontextmenu	
	language	
	scrollTop	0
	offsetWidth	0
	onbeforeupdate	
	onreadystatechange	
	onmouseenter	
	filters	(unknown)
	onresize	
	isContentEditable	0
	aria-checked	
	aria-readonly	
	oncopy	
	onselectstart	
	scrollHeight	0
	onmove	
	ondragend	
	onrowexit	
	lastChild	[null object]
	aria-secret	
	onactivate	
	canHaveChildren	-1
	onfocus	
	onfocusin	
	isMultiLine	-1
	onmouseover	
	offsetTop	0
	oncut	
	parentNode	[object]
	tagName	BUTTON
	className	 x-btn-text
	onmousemove	
	title	
	role	
	behaviorUrns	[object]
	onfocusout	
	onfilterchange	
	disabled	0
	parentTextEdit	[null object]
	ownerDocument	[object]
	offsetParent	[null object]
	aria-posinset	0
	ondrop	
	ondblclick	
	onrowsdelete	
	tabIndex	0
	onkeypress	
	aria-relevant	
	onlosecapture	
	innerText	
	aria-live	
	parentElement	[null object]
	ondeactivate	
	aria-labelledby	
	aria-pressed	
	children	[object]
	ondatasetchanged	
	ondataavailable	
	aria-invalid	
	onafterupdate	
	nodeValue	
	onmousewheel	
	onkeyup	
	readyState	complete
	onmovestart	
	aria-valuenow	
	aria-selected	
	onmouseout	
	aria-owns	
	aria-valuemax	
	onmoveend	
	contentEditable	inherit
	document	[object]
	firstChild	[null object]
	sourceIndex	0
	outerText	
	isTextEdit	-1
	isDisabled	0
	oncellchange	
	runtimeStyle	[object]
	scrollWidth	0
	aria-valuemin	
	onlayoutcomplete	
	onhelp	
	attributes	[object]
	offsetHeight	0
	onerrorupdate	
	onmousedown	
	clientTop	0
	aria-setsize	0
	clientWidth	0
	onpaste	
	tagUrn	
	onmouseleave	
	onclick	
	outerHTML	<BUTTON style="OVERFLOW-X: hidden; OVERFLOW-Y: hidden; WIDTH: 33px; OVERFLOW: hidden" id=ext-gen17 class=" x-btn-text" __sIEve_hookedNode="true"></BUTTON>
	ondrag	
	aria-controls	
	onresizestart	
	aria-flowto	
	ondatasetcomplete	
	aria-required	
	clientLeft	0
	aria-describedby	
	all	[object]
	onbeforecut	
	innerHTML	
	aria-activedescendant	
	aria-multiselectable	
	offsetLeft	0
	name	
	type	button
	dataFormatAs	
	status	
	dataSrc	
	dataFld	
	value	
	form	[null object]
	cloneNode	[object]

Test Case:

Ext.onReady(function(){	
	var win = new Ext.Window({
		width:500,
		height:300,
		title: 'test panel',

		html : 'test',

		buttons: [
			{
				xtype: 'button',
				text: 'Close',
				handler : function(btn) {
					btn.ownerCt.ownerCt.close();
				}
			}
		]
	});

	win.show();
});

Steps to reproduce the problem:
Simply run the example and click on the close button using sIEve.

The result that was expected:
I'd expect that the number of dom nodes return to the initial one (plus the shadow one).

The result that occurs instead:

• foo
• bar

Screenshot or Video:

• attached

Debugging already done:

• none

Possible fix:

• not provided

[VT-TizianoF]

Any news?

[VT-TizianoF]

So?