/*!

 * jQuery Copy Plugin

 * version: 1.0.0-2018.01.23

 * Requires jQuery v1.5 or later

 * Copyright (c) 2018 Tiac

 * http://www.cnblogs.com/tujia/p/8336671.html

 */

// AMD support

(function (factory) {

    "use strict";

    if (typeof define === 'function' && define.amd) {

        // using AMD; register as anon module

        define(['jquery'], factory);

    } else {

        // no AMD; invoke directly

        factory( (typeof(jQuery) != 'undefined') ? jQuery : window.Zepto );

    }

}

(function($) {

"use strict";

/*

    Basic Usage:

    -----------

    Html:

        <button type="button" class="btn-copy" data-clipboard-text="Copy Me!">Copy</button>

    JS:

        $('.btn-copy').copy();

    Html:

        <div class="input-group">

            <input type="text" class="form-control inp-link">

            <span class="input-group-btn">

                <button class="btn btn-primary btn-copy" type="button">Copy</button>

            </span>

        </div>

    JS:

        $('.btn-copy').copy({

            copy: function(_this){

                return _this.parents('div').find('.inp-link').val();

            },

            afterCopy: function(res){

                if(res==true){

                    alert('Copied text to clipboard。');

                }else{

                    alert('Copy failed！');

                }

            }

        });

*/

var clipboard_text = '';

function copyTextToClipboard(_this, text) {

    var oTa = jQuery('<textarea style="position:fixed;left:0;top:0;z-index:9999999999"></textarea>');

    oTa.val(text);

    _this.after(oTa);

    oTa.select();

    try {

        var result = document.execCommand('copy');

        oTa.remove();

        return result;

    } catch (err) {

        console.log(err);

        return false;

    }

}

$.fn.copy = function(options) {

    if(options===undefined) options = {};

    var defaults = {};

    defaults.copy = function(_this){

        clipboard_text = _this.data('clipboard-text');

        return clipboard_text;

    };

    defaults.afterCopy = function(res, _this){

        if(res){

            console.log('Copied text to clipboard: ' + clipboard_text);

        }else{

            console.log('Copy failed！');

        }

    };

    options = $.extend(defaults, options);

    this.on('click', function(){

        clipboard_text = options.copy($(this));

        var res = copyTextToClipboard($(this), clipboard_text);

        options.afterCopy(res, $(this));

    });

};

}));