SheQu/Content/B-UI/BJUI/js/bjui-spinner.js

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/*!
 * B-JUI v1.0 (http://b-jui.com)
 * Git@OSC (http://git.oschina.net/xknaan/B-JUI)
 * Copyright 2014 K'naan (xknaan@163.com).
 * Licensed under Apache (http://www.apache.org/licenses/LICENSE-2.0)
 */

/* ========================================================================
 * B-JUI: bjui-spinner.js v1.0
 * @author K'naan (xknaan@163.com)
 * http://git.oschina.net/xknaan/B-JUI/blob/master/BJUI/js/bjui-spinner.js
 * ========================================================================
 * Copyright 2014 K'naan.
 * Licensed under Apache (http://www.apache.org/licenses/LICENSE-2.0)
 * ======================================================================== */

+function ($) {
    'use strict';
    
    // SPINNER CLASS DEFINITION
    // ======================
    var Spinner = function(element, options) {
        this.$element = $(element)
        this.options  = options
        this.tools    = this.TOOLS()
        this.$spinner = null
        this.height   = this.$element.addClass('form-control').innerHeight()
        this.ivalue   = Number(this.$element.val()) || 0
    }
    
    Spinner.DEFAULTS = {
        min: 0,
        max: 100,
        step: 1,
        decimalPlace: 0
    }
    
    Spinner.EVENTS = {
        afterChange : 'afterchange.bjui.spinner'
    }
    
    Spinner.prototype.TOOLS = function() {
        var that  = this
        var tools = {
            changeVal: function($btn) {
                var $input = that.$element
                var ivalue = Number($input.val()) || Number(that.ivalue)
                var type   = $btn.data('add') || -1
                var istart = that.options.min, iend = that.options.max, istep = that.options.step
                
                if (type == 1) {
                    if (ivalue <= iend - istep)
                        ivalue = ivalue + istep
                } else if (type == -1) {
                    if (ivalue >= (istart + istep))
                        ivalue = ivalue - istep
                } else if (ivalue > iend) {
                    ivalue = iend
                } else if (ivalue < istart) {
                    ivalue = istart
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