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415 lines
15 KiB
415 lines
15 KiB
/*! UIkit 2.5.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
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(function(addon) {
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if (typeof define == "function" && define.amd) { // AMD
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define("uikit-markdownarea", ["uikit"], function(){
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return jQuery.UIkit.markdownarea || addon(window, window.jQuery, window.jQuery.UIkit);
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});
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}
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if(window && window.jQuery && window.jQuery.UIkit) {
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addon(window, window.jQuery, window.jQuery.UIkit);
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}
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})(function(global, $, UI){
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var Markdownarea = function(element, options){
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var $element = $(element);
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if($element.data("markdownarea")) return;
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this.element = $element;
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this.options = $.extend({}, Markdownarea.defaults, options);
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this.marked = this.options.marked || marked;
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this.CodeMirror = this.options.CodeMirror || CodeMirror;
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this.marked.setOptions({
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gfm: true,
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tables: true,
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breaks: true,
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pedantic: false,
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sanitize: false,
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smartLists: true,
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smartypants: false,
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langPrefix: 'lang-'
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});
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this.init();
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this.element.data("markdownarea", this);
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};
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$.extend(Markdownarea.prototype, {
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init: function(){
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var $this = this, tpl = Markdownarea.template;
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tpl = tpl.replace(/\{\:lblPreview\}/g, this.options.lblPreview);
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tpl = tpl.replace(/\{\:lblCodeview\}/g, this.options.lblCodeview);
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this.markdownarea = $(tpl);
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this.content = this.markdownarea.find(".uk-markdownarea-content");
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this.toolbar = this.markdownarea.find(".uk-markdownarea-toolbar");
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this.preview = this.markdownarea.find(".uk-markdownarea-preview").children().eq(0);
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this.code = this.markdownarea.find(".uk-markdownarea-code");
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this.element.before(this.markdownarea).appendTo(this.code);
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this.editor = this.CodeMirror.fromTextArea(this.element[0], this.options.codemirror);
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this.editor.markdownarea = this;
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this.editor.on("change", (function(){
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var render = function(){
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var value = $this.editor.getValue();
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$this.currentvalue = String(value);
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$this.element.trigger("markdownarea-before", [$this]);
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$this.applyPlugins();
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$this.marked($this.currentvalue, function (err, markdown) {
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if (err) throw err;
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$this.preview.html(markdown);
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$this.element.val($this.editor.getValue()).trigger("markdownarea-update", [$this]);
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});
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};
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render();
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return UI.Utils.debounce(render, 150);
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})());
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this.code.find(".CodeMirror").css("height", this.options.height);
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this._buildtoolbar();
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this.fit();
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$(window).on("resize", UI.Utils.debounce(function(){
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$this.fit();
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}, 200));
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var previewContainer = $this.preview.parent(),
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codeContent = this.code.find('.CodeMirror-sizer'),
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codeScroll = this.code.find('.CodeMirror-scroll').on('scroll',UI.Utils.debounce(function() {
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if($this.markdownarea.attr("data-mode")=="tab") return;
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// calc position
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var codeHeight = codeContent.height() - codeScroll.height(),
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previewHeight = previewContainer[0].scrollHeight - previewContainer.height(),
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ratio = previewHeight / codeHeight,
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previewPostition = codeScroll.scrollTop() * ratio;
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// apply new scroll
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previewContainer.scrollTop(previewPostition);
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}, 10));
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this.markdownarea.on("click", ".uk-markdown-button-markdown, .uk-markdown-button-preview", function(e){
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e.preventDefault();
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if($this.markdownarea.attr("data-mode")=="tab") {
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$this.markdownarea.find(".uk-markdown-button-markdown, .uk-markdown-button-preview").removeClass("uk-active").filter(this).addClass("uk-active");
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$this.activetab = $(this).hasClass("uk-markdown-button-markdown") ? "code":"preview";
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$this.markdownarea.attr("data-active-tab", $this.activetab);
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}
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});
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this.preview.parent().css("height", this.code.height());
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},
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applyPlugins: function(){
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var $this = this,
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plugins = Object.keys(Markdownarea.plugins),
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plgs = Markdownarea.plugins;
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this.markers = {};
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if(plugins.length) {
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var lines = this.currentvalue.split("\n");
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plugins.forEach(function(name){
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this.markers[name] = [];
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}, this);
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for(var line=0,max=lines.length;line<max;line++) {
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(function(line){
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plugins.forEach(function(name){
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var i = 0;
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lines[line] = lines[line].replace(plgs[name].identifier, function(){
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var replacement = plgs[name].cb({
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"area" : $this,
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"found": arguments,
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"line" : line,
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"pos" : i++,
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"uid" : [name, line, i, (new Date().getTime())+"RAND"+(Math.ceil(Math.random() *100000))].join('-'),
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"replace": function(strwith){
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var src = this.area.editor.getLine(this.line),
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start = src.indexOf(this.found[0]);
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end = this.found[0].length;
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this.area.editor.replaceRange(strwith, {"line": this.line, "ch":start}, {"line": this.line, "ch":end} );
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}
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});
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return replacement;
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});
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});
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})(line);
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}
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this.currentvalue = lines.join("\n");
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}
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},
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_buildtoolbar: function(){
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if(!(this.options.toolbar && this.options.toolbar.length)) return;
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var $this = this, bar = [];
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this.options.toolbar.forEach(function(cmd){
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if(Markdownarea.commands[cmd]) {
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var title = Markdownarea.commands[cmd].title ? Markdownarea.commands[cmd].title : cmd;
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bar.push('<li><a data-markdownarea-cmd="'+cmd+'" title="'+title+'" data-uk-tooltip>'+Markdownarea.commands[cmd].label+'</a></li>');
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if(Markdownarea.commands[cmd].shortcut) {
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$this.registerShortcut(Markdownarea.commands[cmd].shortcut, Markdownarea.commands[cmd].action);
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}
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}
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});
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this.toolbar.html(bar.join("\n"));
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this.markdownarea.on("click", "a[data-markdownarea-cmd]", function(){
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var cmd = $(this).data("markdownareaCmd");
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if(cmd && Markdownarea.commands[cmd] && (!$this.activetab || $this.activetab=="code" || cmd=="fullscreen")) {
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Markdownarea.commands[cmd].action.apply($this, [$this.editor])
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}
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});
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},
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fit: function() {
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var mode = this.options.mode;
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if(mode=="split" && this.markdownarea.width() < this.options.maxsplitsize) {
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mode = "tab";
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}
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if(mode=="tab") {
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if(!this.activetab) {
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this.activetab = "code";
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this.markdownarea.attr("data-active-tab", this.activetab);
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}
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this.markdownarea.find(".uk-markdown-button-markdown, .uk-markdown-button-preview").removeClass("uk-active")
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.filter(this.activetab=="code" ? '.uk-markdown-button-markdown':'.uk-markdown-button-preview').addClass("uk-active");
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}
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this.editor.refresh();
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this.preview.parent().css("height", this.code.height());
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this.markdownarea.attr("data-mode", mode);
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},
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registerShortcut: function(combination, callback){
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var $this = this;
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combination = $.isArray(combination) ? combination : [combination];
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for(var i=0,max=combination.length;i < max;i++) {
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var map = {};
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map[combination[i]] = function(){
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callback.apply($this, [$this.editor]);
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};
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$this.editor.addKeyMap(map);
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}
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}
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});
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//jQuery plugin
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$.fn.markdownarea = function(options){
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return this.each(function(){
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var ele = $(this);
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if(!ele.data("markdownarea")) {
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var obj = new Markdownarea(ele, options);
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}
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});
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};
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var baseReplacer = function(replace, editor){
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var text = editor.getSelection(),
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markdown = replace.replace('$1', text);
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editor.replaceSelection(markdown, 'end');
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};
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Markdownarea.commands = {
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"fullscreen": {
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"title" : 'Fullscreen',
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"label" : '<i class="uk-icon-expand"></i>',
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"action" : function(editor){
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editor.markdownarea.markdownarea.toggleClass("uk-markdownarea-fullscreen");
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var wrap = editor.getWrapperElement();
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if(editor.markdownarea.markdownarea.hasClass("uk-markdownarea-fullscreen")) {
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editor.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset, width: wrap.style.width, height: wrap.style.height};
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wrap.style.width = "";
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wrap.style.height = editor.markdownarea.content.height()+"px";
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document.documentElement.style.overflow = "hidden";
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} else {
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document.documentElement.style.overflow = "";
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var info = editor.state.fullScreenRestore;
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wrap.style.width = info.width; wrap.style.height = info.height;
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window.scrollTo(info.scrollLeft, info.scrollTop);
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}
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editor.refresh();
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editor.markdownarea.preview.parent().css("height", editor.markdownarea.code.height());
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}
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},
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"bold" : {
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"title" : "Bold",
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"label" : '<i class="uk-icon-bold"></i>',
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"shortcut": ['Ctrl-B', 'Cmd-B'],
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"action" : function(editor){
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baseReplacer("**$1**", editor);
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}
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},
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"italic" : {
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"title" : "Italic",
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"label" : '<i class="uk-icon-italic"></i>',
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"action" : function(editor){
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baseReplacer("*$1*", editor);
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}
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},
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"strike" : {
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"title" : "Strikethrough",
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"label" : '<i class="uk-icon-strikethrough"></i>',
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"action" : function(editor){
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baseReplacer("~~$1~~", editor);
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}
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},
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"blockquote" : {
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"title" : "Blockquote",
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"label" : '<i class="uk-icon-quote-right"></i>',
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"action" : function(editor){
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baseReplacer("> $1", editor);
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}
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},
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"link" : {
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"title" : "Link",
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"label" : '<i class="uk-icon-link"></i>',
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"action" : function(editor){
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baseReplacer("[$1](http://)", editor);
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}
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},
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"picture" : {
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"title" : "Picture",
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"label" : '<i class="uk-icon-picture-o"></i>',
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"action" : function(editor){
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baseReplacer("", editor);
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}
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},
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"listUl" : {
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"title" : "Unordered List",
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"label" : '<i class="uk-icon-list-ul"></i>',
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"action" : function(editor){
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baseReplacer("* $1", editor);
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}
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},
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"listOl" : {
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"title" : "Ordered List",
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"label" : '<i class="uk-icon-list-ol"></i>',
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"action" : function(editor){
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baseReplacer("1. $1", editor);
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}
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}
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}
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Markdownarea.defaults = {
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"mode" : "split",
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"height" : 500,
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"maxsplitsize" : 1000,
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"codemirror" : { mode: 'gfm', tabMode: 'indent', tabindex: "2", lineWrapping: true, dragDrop: false },
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"toolbar" : [ "bold", "italic", "strike", "link", "picture", "blockquote", "listUl", "listOl" ],
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"lblPreview" : "Preview",
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"lblCodeview" : "Markdown"
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};
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Markdownarea.template = '<div class="uk-markdownarea uk-clearfix" data-mode="split">' +
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'<div class="uk-markdownarea-navbar">' +
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'<ul class="uk-markdownarea-navbar-nav uk-markdownarea-toolbar"></ul>' +
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'<div class="uk-markdownarea-navbar-flip">' +
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'<ul class="uk-markdownarea-navbar-nav">' +
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'<li class="uk-markdown-button-markdown"><a>{:lblCodeview}</a></li>' +
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'<li class="uk-markdown-button-preview"><a>{:lblPreview}</a></li>' +
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'<li><a data-markdownarea-cmd="fullscreen"><i class="uk-icon-expand"></i></a></li>' +
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'</ul>' +
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'</div>' +
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'</div>' +
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'<div class="uk-markdownarea-content">' +
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'<div class="uk-markdownarea-code"></div>' +
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'<div class="uk-markdownarea-preview"><div></div></div>' +
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'</div>' +
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'</div>';
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Markdownarea.plugins = {};
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Markdownarea.addPlugin = function(name, identifier, callback) {
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Markdownarea.plugins[name] = {"identifier":identifier, "cb":callback};
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};
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UI["markdownarea"] = Markdownarea;
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// init code
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$(function() {
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$("textarea[data-uk-markdownarea]").each(function() {
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var area = $(this), obj;
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if (!area.data("markdownarea")) {
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obj = new Markdownarea(area, UI.Utils.options(area.attr("data-uk-markdownarea")));
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}
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});
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});
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return Markdownarea;
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});
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