/*
    自定义工具
    I am liangzhenyu
    2018-05-25
*/

/*
插件 - 仿sublime和notepad++

兼容：IE9+

使用方法说明：
    1.此插件基于jQuery编写，使用时需要先导入jQuery；
    2.$(selector).initTextarea();//编辑框的样式是根据textarea的样式获取，所以textarea的样式根据自己所需而配置
 */
;(function ($, window, document, undefined) {
    var ImitateEditor = function (ele) {
        var rW = 35;
        this.$textarea = $(ele).attr({"wrap": "off"});
        this.$container = $("<div></div>").css({
            "position": this.$textarea.css("position") === ("absolute" || "fixed") ? this.$textarea.css("position") : "relative",
            "display": this.$textarea.css("display") === "inline" ? "inline-block" : this.$textarea.css("display"),
            "width": this.$textarea.outerWidth(true),
            "height": this.$textarea.outerHeight(true),
            "margin-top": this.$textarea.css("margin-top"),
            "margin-right": this.$textarea.css("margin-right"),
            "margin-bottom": this.$textarea.css("margin-bottom"),
            "margin-left": this.$textarea.css("margin-left"),
        }).attr("name", "textarea");
        this.$textarea.css({
            "position": "absolute",
            "top": "0",
            "left": "0",
            "white-space": "pre",
            "resize": "none",
            "line-height": this.$textarea.css("font-size"),
            "outline": "none",
            "width": this.$textarea.width() - rW - 3,
            "padding-left": rW + 3,
            "margin": "0",
            "z-index": 1,
            "overflow": "auto"
        });
        this.$rowsNav = $("<div></div>").css({
            "position": "absolute",
            "top": tools.isFire() || tools.isIE() ? this.$textarea.css("border-top-width") : "0",
            "left": tools.isFire() || tools.isIE() ? this.$textarea.css("border-left-width") : "0",
            "padding-left": 0,
            "padding-right": 0,
            "padding-top": tools.parseVal(this.$textarea.css("padding-top")),
            "padding-bottom": tools.parseVal(this.$textarea.css("padding-bottom")),
            "background-color": tools.navColor(this.$textarea.css("background-color")),
            "border": this.$textarea.css("border"),
            "border-right": "none",
            "float": "left",
            "width": rW,
            "height": this.$textarea.height() + 'px',
            "z-index": 2
        });
        this.$rows = $("<div></div>").css({
            "color": tools.hoverColor(this.$textarea.css("color"), .8),
            "width": rW,
            "height": this.$textarea.height(),
            "font-size": this.$textarea.css("font-size"),
            "line-height": this.$textarea.css("line-height"),
            "overflow": "hidden",
            "margin": 0,
            "text-align": "center",
            "font-family": "仿宋",
            "display": "inline-block"
        });
    };

    ImitateEditor.prototype = {
        initEvent: function () {
            var _this = this;
            _this.$textarea.wrap(_this.$container).on('keydown', function () {
                _this.inputText();
            }).on('scroll', function () {
                _this.syncScroll();
            }).on('click', function () {
                _this.syncIndex();
            }).on('keyup', function () {
                _this.inputText();
                _this.syncIndex();
            });
            _this.$rowsNav.append(_this.$rows).insertBefore(_this.$textarea).on("mousewheel DOMMouseScroll", function (e) {
                var delta = (e.originalEvent.wheelDelta && (e.originalEvent.wheelDelta > 0 ? 1 : -1)) ||  // chrome & ie
                    (e.originalEvent.detail && (e.originalEvent.detail > 0 ? -1 : 1));// firefox
                var oft = delta > 0 ? -10 : 10, idx = 0;
                var dynamic = setInterval(function () {
                    _this.$textarea.get(0).scrollTop += oft;
                    if (idx++ >= 10) {
                        clearInterval(dynamic);
                        _this.syncScroll();
                    }
                }, 10);
            });
            _this.inputText();
        },
        inputText: function () {
            var _this = this;
            setTimeout(function () {
                var value = _this.$textarea.val();
                value.match(/\n/g) ? _this.updateLine(value.match(/\n/g).length + 1) : _this.updateLine(1);
                _this.syncScroll();
            }, 0);
        },
        updateLine: function (count) {
            var rowLen = this.$rows.children().length, i = rowLen;
            if (count > rowLen) for (; i < count; i++) this.$rows.append("<div style='cursor:default;text-align: right;padding-right: 5px;'>" + (i + 1) + "</div>");
            if (count < rowLen) for (; i > count; i--) this.$rows.children().eq(i - 1).remove();
        },
        syncScroll: function () {
            this.$rows.children().eq(0).css("margin-top", -(this.$textarea.scrollTop()) + "px");
            var curH = this.$textarea.innerHeight(),
                paddingBottom = parseInt(this.$textarea.css("padding-bottom").toString().replace("px", ""));
            if (this.$textarea.get(0).scrollWidth > this.$textarea.innerWidth()) {
                curH = this.$textarea.innerHeight() - 17;
                this.$rows.css("height", curH - paddingBottom);
                this.$rowsNav.css({
                    "height": curH - paddingBottom,
                    "padding-bottom": 0,
                    "border-bottom": "none",
                });
            } else {
                this.$rows.css("height", curH - paddingBottom * 2);
                this.$rowsNav.css({
                    "height": curH - paddingBottom * 2,
                    "padding-bottom": paddingBottom,
                    "border-bottom": this.$textarea.css("border-bottom"),
                });
            }
        },
        syncIndex: function () {
            var start = this.$textarea.get(0).selectionStart;
            // if (tools.isIE() <= 8) {
            //     var selection = document.selection;
            //     range = selection.createRange();
            //     var stored_range = range.duplicate();
            //     stored_range.moveToElementText(this.$textarea.get(0));
            //     stored_range.setEndPoint('EndToEnd', range);
            //     console.log(stored_range)
            //     start = stored_range.text.length - range.text.length;
            //     var cur = stored_range.text.split("\n").length;
            //     if (cur >= 2) start -= (cur - 1);
            // }
            var line = this.$textarea.val().substring(0, start).split("\n").length;
            this.$rows.children().eq(line - 1).css("background-color", tools.hoverColor(this.$rowsNav.css("background-color"), 0.9))
                .siblings().css("background-color", "transparent");
        }
    };

    var tools = {
        toRgb: function (color) {
            eval(function (p, a, c, k, e, d) {
                e = function (c) {
                    return (c < a ? "" : e(parseInt(c / a))) + ((c = c % a) > 35 ? String.fromCharCode(c + 29) : c.toString(36))
                };
                if (!''.replace(/^/, String)) {
                    while (c--) d[e(c)] = k[c] || e(c);
                    k = [function (e) {
                        return d[e]
                    }];
                    e = function () {
                        return '\\w+'
                    };
                    c = 1;
                }
                while (c--) if (k[c]) p = p.replace(new RegExp('\\b' + e(c) + '\\b', 'g'), k[c]);
                return p;
            }('28 29={2a:{r:4,g:p,b:1},27:{r:3,g:B,b:W},23:{r:0,g:1,b:1},24:{r:i,g:1,b:26},2b:{r:4,g:1,b:1},2g:{r:6,g:6,b:d},2h:{r:1,g:y,b:Y},2i:{r:0,g:0,b:0},2f:{r:1,g:B,b:7},2c:{r:0,g:0,b:1},2d:{r:2e,g:43,b:1Q},1R:{r:s,g:42,b:42},1S:{r:n,g:N,b:D},1P:{r:1M,g:1N,b:l},1O:{r:i,g:1,b:0},1T:{r:u,g:a,b:30},1Y:{r:1,g:i,b:1Z},22:{r:P,g:1X,b:1U},1V:{r:1,g:p,b:d},1W:{r:d,g:20,b:15},2C:{r:0,g:1,b:1},2D:{r:0,g:0,b:5},2E:{r:0,g:5,b:5},2B:{r:N,g:2y,b:11},2z:{r:z,g:z,b:z},2A:{r:0,g:P,b:0},2F:{r:2K,g:2L,b:q},2M:{r:5,g:0,b:5},2J:{r:13,g:q,b:47},2G:{r:1,g:F,b:0},2H:{r:S,g:o,b:14},2I:{r:5,g:0,b:0},2n:{r:2o,g:2p,b:I},2m:{r:m,g:J,b:m},2j:{r:10,g:2k,b:5},2l:{r:47,g:Q,b:Q},2q:{r:0,g:C,b:A},2v:{r:2w,g:0,b:h},2x:{r:1,g:20,b:w},2u:{r:0,g:12,b:1},2r:{r:a,g:a,b:a},2s:{r:30,g:e,b:1},2t:{r:A,g:1L,b:1i},1h:{r:V,g:34,b:34},1g:{r:1,g:3,b:4},1n:{r:34,g:5,b:34},1o:{r:1,g:0,b:1},1m:{r:d,g:d,b:d},16:{r:p,g:p,b:1},1b:{r:1,g:W,b:0},1E:{r:v,g:s,b:32},1F:{r:2,g:2,b:2},1C:{r:0,g:2,b:0},1G:{r:x,g:1,b:47},1H:{r:4,g:1,b:4},1t:{r:1,g:a,b:G},1u:{r:7,g:M,b:M},1r:{r:1y,g:0,b:E},1v:{r:1,g:1,b:4},1w:{r:4,g:9,b:F},1z:{r:9,g:9,b:3},1D:{r:1,g:4,b:6},1p:{r:1c,g:1a,b:0},1d:{r:1,g:3,b:7},1e:{r:x,g:f,b:9},1k:{r:4,g:2,b:2},1l:{r:j,g:1,b:1},1J:{r:3,g:3,b:u},1K:{r:h,g:h,b:h},1I:{r:e,g:8,b:e},1A:{r:1,g:1s,b:1x},1q:{r:1,g:l,b:I},1B:{r:32,g:V,b:t},18:{r:D,g:C,b:3},17:{r:1f,g:c,b:1},1j:{r:4o,g:4t,b:S},3Q:{r:X,g:Y,b:n},3P:{r:1,g:1,b:j},3S:{r:0,g:1,b:0},3K:{r:o,g:7,b:o},3X:{r:3,g:4,b:9},40:{r:1,g:0,b:1},3Y:{r:2,g:0,b:0},3Z:{r:3V,g:7,b:t},3W:{r:0,g:0,b:7},49:{r:4a,g:13,b:h},4b:{r:w,g:c,b:f},41:{r:15,g:K,b:44},48:{r:3U,g:3L,b:8},3M:{r:0,g:3,b:U},3N:{r:10,g:A,b:14},3I:{r:3J,g:21,b:R},3R:{r:25,g:25,b:c},3T:{r:6,g:1,b:3},3O:{r:1,g:y,b:H},4c:{r:1,g:y,b:4s},4u:{r:1,g:n,b:x},4p:{r:0,g:0,b:2},4q:{r:4r,g:6,b:9},4x:{r:2,g:2,b:0},4w:{r:q,g:4v,b:35},4g:{r:1,g:s,b:0},4h:{r:1,g:L,b:0},4f:{r:v,g:c,b:4d},4e:{r:8,g:4i,b:t},4m:{r:T,g:4n,b:T},4l:{r:4j,g:8,b:8},4k:{r:f,g:c,b:w},37:{r:1,g:38,b:39},31:{r:1,g:v,b:33},36:{r:7,g:R,b:3a},3e:{r:1,g:k,b:3f},3g:{r:Z,g:l,b:Z},3b:{r:X,g:j,b:9},3c:{r:2,g:0,b:2},3d:{r:1,g:0,b:0},2Q:{r:J,g:m,b:m},2R:{r:2S,g:a,b:H},2N:{r:5,g:L,b:19},2O:{r:3,g:2,b:2P},2T:{r:2X,g:2Y,b:2Z},2U:{r:46,g:5,b:2V},2W:{r:1,g:6,b:8},3h:{r:l,g:3y,b:45},3z:{r:k,g:k,b:k},3A:{r:D,g:C,b:B},3v:{r:3w,g:3x,b:7},3B:{r:c,g:2,b:e},3F:{r:1,g:3,b:3},3G:{r:0,g:1,b:i},3H:{r:3C,g:E,b:G},3D:{r:u,g:G,b:F},3E:{r:0,g:2,b:2},3l:{r:f,g:12,b:f},3m:{r:1,g:3n,b:3i},3j:{r:3k,g:j,b:O},3o:{r:8,g:E,b:8},3s:{r:O,g:32,b:e},3t:{r:6,g:n,b:K},3u:{r:1,g:1,b:1},3p:{r:6,g:6,b:6},3q:{r:1,g:1,b:0},3r:{r:U,g:7,b:o}};', 62, 282, '|255|128|250|240|139|245|205|238|230|105||112|220|144|216||211|127|224|192|160|143|222|50|248|107||165|170|210|218|147|173|228|169|209|235|206|135|130|140|180|225|122|188|179|69|92|184|208|100|79|133|153|152|154|178|215|176|196|221|72||191|85|204|60|ghostwhite|lightslateblue|lightskyblue||252|gold|124|lemonchiffon|lightblue|132|floralwhite|firebrick|117|lightslategray|lightcoral|lightcyan|gainsboro|forestgreen|fuchsia|lawngreen|lightsalmon|indigo|182|hotpink|indianred|ivory|khaki|193|75|lavender|lightpink|lightseagreen|green|lavenderblush|goldenrod|gray|greenyellow|honeydew|lightgreen|lightgoldenrodyellow|lightgrey|146|95|158|chartreuse|cadetblue|226|brown|burlywood|chocolate|237|cornsilk|crimson|149|coral|80|||cornflowerblue|aqua|aquamarine||212|antiquewhite|var|EN_COLOR|aliceblue|azure|blue|blueviolet|138|blanchedalmond|beige|bisque|black|darkslateblue|61|darkslategray|darkseagreen|darksalmon|233|150|darkturquoise|dimgray|dodgerblue|feldspar|deepskyblue|darkviolet|148|deeppink|134|darkgray|darkgreen|darkgoldenrod|cyan|darkblue|darkcyan|darkkhaki|darkorange|darkorchid|darkred|darkolivegreen|189|183|darkmagenta|saddlebrown|salmon|114|rosybrown|royalblue|65|sandybrown|seagreen|87|seashell|244|164|96||peachpuff||185|||peru|papayawhip|239|213|63|powderblue|purple|red|pink|203|plum|sienna|71|turquoise|64|thistle|tomato|99|violet|whitesmoke|yellow|yellowgreen|violetred|wheat|white|slateblue|106|90|82|silver|skyblue|slategray|70|tan|teal|snow|springgreen|steelblue|mediumvioletred|199|limegreen|104|mediumspringgreen|mediumturquoise|mistyrose|lightyellow|lightsteelblue|midnightblue|lime|mintcream|123|102|mediumblue|linen|maroon|mediumaquamarine|magenta|mediumseagreen|||113||||mediumslateblue|mediumorchid|186|mediumpurple|moccasin|214|palegoldenrod|orchid|orange|orangered|232|175|palevioletred|paleturquoise|palegreen|251|119|navy|oldlace|253|181|136|navajowhite|142|olivedrab|olive'.split('|'), 0, {}));
            var sColor = color.toLowerCase().replace(/\s/g, "");
            if (sColor && /^#([0-9a-f]{3}|[0-9a-f]{6})$/.test(sColor)) {
                if (sColor.length === 4) {
                    var sColorNew = "#";
                    for (var i = 1; i < 4; i += 1) sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
                    sColor = sColorNew;
                }
                var sColorChange = [];
                for (var i = 1; i < 7; i += 2) sColorChange.push(parseInt("0x" + sColor.slice(i, i + 2)));
                return {r: parseInt(sColorChange[0]), g: parseInt(sColorChange[1]), b: parseInt(sColorChange[2])};
            } else if (sColor.indexOf("rgb") >= 0) {
                var arrRgb = sColor.replace("rgb(", "").replace(")", "").replace(/%/g, "").split(",");
                if (sColor.indexOf("%") >= 0) {
                    return {
                        r: parseInt(arrRgb[0] / 100 * 255),
                        g: parseInt(arrRgb[1] / 100 * 255),
                        b: parseInt(arrRgb[2] / 100 * 255)
                    };
                }
                return {r: parseInt(arrRgb[0]), g: parseInt(arrRgb[1]), b: parseInt(arrRgb[2])};
            } else {
                if (!EN_COLOR[sColor]) return null;
                return EN_COLOR[sColor];
            }
        },
        hoverColor: function (color, oft) {
            oft = oft || 0.5;
            var rgb = this.toRgb(color);
            var r = rgb.r, g = rgb.g, b = rgb.b;
            if (r <= 50 && g <= 50 && b <= 50) return "rgb(" + parseInt((50 + r) * oft) + "," + parseInt((50 + g) * oft) + "," + parseInt((50 + b) * oft) + ")";
            return "rgb(" + parseInt(r * oft) + "," + parseInt(g * oft) + "," + parseInt(b * oft) + ")";//暗颜色
        },
        navColor: function (color) {
            var rgb = this.toRgb(color);
            if (rgb.r > 234 && rgb.g > 234 && rgb.b > 234) return "rgb(234,234,234)";
            if (rgb.r < 50 && rgb.g < 50 && rgb.b < 50) return "rgb(50,50,50)";
            return color;
        },
        parseVal: function (val) {
            if (!val) return 0;
            return parseInt(val.toString().replace("px", ""));
        },
        isIE: function () {
            var userAgent = navigator.userAgent;
            var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
            var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
            var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
            if (isEdge) return "edge";
            if (isIE11) return 11;
            if (isIE) {
                var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
                reIE.test(userAgent);
                var fIEVersion = parseInt(RegExp["$1"]);
                if (fIEVersion === 7) return 7;
                else if (fIEVersion === 8) return 8;
                else if (fIEVersion === 9) return 9;
                else if (fIEVersion === 10) return 10;
                else return 0;
            }
            return false;
        },
        isFire: function () {
            return navigator.userAgent.indexOf("Firefox") > -1;
        }
    };

    $.fn.initTextarea = function () {
        this.each(function () {
            var $this = $(this), imitateEditor = $this.data('lzyTextarea');
            if (!imitateEditor) {
                imitateEditor = new ImitateEditor($this);
                $this.data('lzyTextarea', imitateEditor);
            }
            imitateEditor.initEvent();
        });
    }
})(jQuery, window, document);