Removing ExtJs' panel's collapse button and it's floating animation - extjs

Question

While using ExtJs border layout I want my East panel to be expandable & collapsible only by clicking on the panel's header, i.e. use floating characteristic. My queries are:
How do I remove the collapse button?
How do I remove floating animation? (animCollapse property seems to
work only on collapse & expand actions performed on the collapse
button)

Answer 1

Ext.require(['*']);
Ext.onReady(function() {
new Ext.container.Viewport({
layout: 'border',
items: [{
region: 'west',
collapsed: true,
hideCollapseTool: true,
floatable: true,
width: 200,
title: 'Foo'
}, {
region: 'center'
}]
});
});

Answer 2

Prior to ExtJS 4.1.2 disabling the animation for floated panels was not possible.
Now, the animation will be disabled if animCollapse is set to 0.
Important!!!
The animCollapse property can be set to true, false, or the animation duration in milliseconds. However, if set to false it will still use the default animation time. It must be set to 0. I believe this is a bug and it's not yet fixed in 4.2.2
If you want to disable the animation but you are unable to update your project to ExtJS 4.1.2 or higher add the duration to the slideIn call in floatCollapsedPanel and to the slideOut call in slideOutFloatedPanel in the Ext.panel.Panel source code.
...
me.el.slideIn(slideDirection, {
preserveScroll: true,
duration: Ext.Number.from(me.animCollapse, Ext.fx.Anim.prototype.duration),
listeners: {
afteranimate: function() {
me.isSliding = false;
}
}
});
...
and
...
compEl.slideOut(collapseDirection, {
preserveScroll: true,
duration: Ext.Number.from(me.animCollapse, Ext.fx.Anim.prototype.duration),
listeners: {
afteranimate: function() {
me.slideOutFloatedPanelEnd();
// this would be in slideOutFloatedPanelEnd except that the only other
// caller removes this cls later
me.el.removeCls(Ext.baseCSSPrefix + 'border-region-slide-in');
me.isSliding = false;
}
}
});
...
See the 4.1.2 source code for Ext.panel.Panel: http://docs.sencha.com/extjs/4.1.2/source/Panel5.html#Ext-panel-Panel