/*
This file is part of Ext JS 3.4

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-04-03 15:07:25
*/
/**
 * @class Ext.slider.Tip
 * @extends Ext.Tip
 * Simple plugin for using an Ext.Tip with a slider to show the slider value. Example usage:
<pre>
new Ext.Slider({
    width: 214,
    minValue: 0,
    maxValue: 100,
    plugins: new Ext.slider.Tip()
});
</pre>
 * Optionally provide your own tip text by overriding getText:
 <pre>
 new Ext.Slider({
     width: 214,
     minValue: 0,
     maxValue: 100,
     plugins: new Ext.slider.Tip({
         getText: function(thumb){
             return String.format('<b>{0}% complete</b>', thumb.value);
         }
     })
 });
 </pre>
 */
Ext.slider.Tip = Ext.extend(Ext.Tip, {
    minWidth: 10,
    offsets : [0, -10],
    
    init: function(slider) {
        slider.on({
            scope    : this,
            dragstart: this.onSlide,
            drag     : this.onSlide,
            dragend  : this.hide,
            destroy  : this.destroy
        });
    },
    
    /**
     * @private
     * Called whenever a dragstart or drag event is received on the associated Thumb. 
     * Aligns the Tip with the Thumb's new position.
     * @param {Ext.slider.MultiSlider} slider The slider
     * @param {Ext.EventObject} e The Event object
     * @param {Ext.slider.Thumb} thumb The thumb that the Tip is attached to
     */
    onSlide : function(slider, e, thumb) {
        this.show();
        this.body.update(this.getText(thumb));
        this.doAutoWidth();
        this.el.alignTo(thumb.el, 'b-t?', this.offsets);
    },

    /**
     * Used to create the text that appears in the Tip's body. By default this just returns
     * the value of the Slider Thumb that the Tip is attached to. Override to customize.
     * @param {Ext.slider.Thumb} thumb The Thumb that the Tip is attached to
     * @return {String} The text to display in the tip
     */
    getText : function(thumb) {
        return String(thumb.value);
    }
});

//backwards compatibility - SliderTip used to be a ux before 3.2
Ext.ux.SliderTip = Ext.slider.Tip;