src/mvc/client/Bootstrap.Client/wwwroot/lib/captcha/longbow.slidercaptcha.js

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(function ($) {
    'use strict';

    var SliderCaptcha = function (element, options) {
        this.$element = $(element);
        this.options = $.extend({}, SliderCaptcha.DEFAULTS, options);
        this.$element.css({ 'position': 'relative', 'width': this.options.width + 'px', 'margin': '0 auto' });
        this.init();
    };

    SliderCaptcha.VERSION = '1.0';
    SliderCaptcha.Author = 'argo@163.com';
    SliderCaptcha.DEFAULTS = {
        width: 280,     // canvas宽度
        height: 155,    // canvas高度
        PI: Math.PI,
        sliderL: 42,    // 滑块边长
        sliderR: 9,     // 滑块半径
        offset: 5,      // 容错偏差
        loadingText: '正在加载中...',
        failedText: '再试一次',
        barText: '向右滑动填充拼图',
        repeatIcon: 'fa fa-repeat',
        maxLoadCount: 3,
        localImages: function () {
            return 'images/Pic' + Math.round(Math.random() * 4) + '.jpg';
        },
        verify: function (arr, url) {
            var ret = false;
            $.ajax({
                url: url,
                data: JSON.stringify(arr),
                async: false,
                cache: false,
                type: 'POST',
                contentType: 'application/json',
                dataType: 'json',
                success: function (result) {
                    ret = result;
                }
            });
            return ret;
        },
        remoteUrl: null
    };

    function Plugin(option) {
        return this.each(function () {
            var $this = $(this);
            var data = $this.data('lgb.SliderCaptcha');
            var options = typeof option === 'object' && option;

            if (data && !/reset/.test(option)) return;
            if (!data) $this.data('lgb.SliderCaptcha', data = new SliderCaptcha(this, options));
            if (typeof option === 'string') data[option]();
        });
    }

    $.fn.sliderCaptcha = Plugin;
    $.fn.sliderCaptcha.Constructor = SliderCaptcha;