Why does the first panel of ExtJS 4.2.1 accordion layout never close? -


i have extjs 4.2.1 accordion layout 3 panels.

when app first launched, first panel open , 2nd/3rd closed.

i can open , close 2nd , 3rd, can never close first panel.

ext.define('myaccordion', {     extend: 'ext.container.container',     alias: 'widget.myaccordion',     padding: 0,     margin: 0,     width: 200,          layout: {         type: 'accordion',         align: 'stretch',         animate: true,         hidecollapsetool: true     },       items: [{         xtype: 'panel',         title: 'test volumes',         layout: {             type: 'vbox',             align: 'stretch'         },         items: [{             xtype: 'label',             text: 'volume one'         },{             xtype: 'label',             text: 'volume two'         },{             xtype: 'label',             text: 'volume three'         }]     }, {         xtype: 'panel',         title: 'production volumes',         layout: {             type: 'vbox',             align: 'stretch'         },         items: [{             xtype: 'label',             text: 'volume one'         },{             xtype: 'label',             text: 'volume two'         },{             xtype: 'label',             text: 'volume three'         }]     }, {         xtype: 'panel',         title: 'extra volumes',         layout: {             type: 'vbox',             align: 'stretch'         },         items: [{             xtype: 'label',             text: 'volume one'         },{             xtype: 'label',             text: 'volume two'         },{             xtype: 'label',             text: 'volume three'         }]     }] });

in following code leveraged 4.2.1 examples layout browser example, if first thing after launching app click first header, close, re-open , never closes again:

ext.onready(function() {     ext.create('ext.container.viewport', {         renderto: ext.getbody(),         items: [{             xtype: 'panel',             title: 'accordion layout',             layout: 'accordion',             defaults: {bodystyle: 'padding:15px'},             items: [{                 title: 'introduction',                 tools: [{type:'gear'},{type:'refresh'}],                 html: '<p>here accordion content.  click on 1 of other bars below more.</p>'             },{                 title: 'basic content',                 html: '<br /><br /><p>more content.  open third panel customized , feel example.</p>',                 items: {                     xtype: 'button',                     text: 'show next panel',                     handler: function(){                         ext.getcmp('acc-custom').expand(true);                     }                 }             },{                 id: 'acc-custom',                 title: 'custom panel , feel',                 cls: 'custom-accordion', // in layout-browser.css see css rules class                 html: '<p>here example of how easy customize , feel of individual panel adding css class in config.</p>'             }]         }]     }); });

even more strange, if show collapse/expand tool, tool first panel stops working.

amazing true, happens because accordion layout container not have height set.

because can't have fixed height, fixes issue: flex: 1

but seems strange, because why should not having height (or flex, etc) break closing first container? seems weird.


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