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4667 lines (3759 loc) · 162 KB
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/*
* Editor.md
*
* @file editormd.amd.js
* @version v1.5.0
* @description Open source online markdown editor.
* @license MIT License
* @author Pandao
* {@link https://github.com/pandao/editor.md}
* @updateTime 2015-06-09
*/
;(function(factory) {
"use strict";
// CommonJS/Node.js
if (typeof require === "function" && typeof exports === "object" && typeof module === "object")
{
module.exports = factory;
}
else if (typeof define === "function") // AMD/CMD/Sea.js
{
if (define.amd) // for Require.js
{
var cmModePath = "./lib/codemirror/mode/";
var cmAddonPath = "./lib/codemirror/addon/";
var codeMirrorModules = [
"jquery", "marked", "prettify",
"katex", "raphael", "underscore", "flowchart", "jqueryflowchart", "sequenceDiagram",
"./lib/codemirror/lib/codemirror",
cmModePath + "css/css",
cmModePath + "sass/sass",
cmModePath + "shell/shell",
cmModePath + "sql/sql",
cmModePath + "clike/clike",
cmModePath + "php/php",
cmModePath + "xml/xml",
cmModePath + "markdown/markdown",
cmModePath + "javascript/javascript",
cmModePath + "htmlmixed/htmlmixed",
cmModePath + "gfm/gfm",
cmModePath + "http/http",
cmModePath + "go/go",
cmModePath + "dart/dart",
cmModePath + "coffeescript/coffeescript",
cmModePath + "nginx/nginx",
cmModePath + "python/python",
cmModePath + "perl/perl",
cmModePath + "lua/lua",
cmModePath + "r/r",
cmModePath + "ruby/ruby",
cmModePath + "rst/rst",
cmModePath + "smartymixed/smartymixed",
cmModePath + "vb/vb",
cmModePath + "vbscript/vbscript",
cmModePath + "velocity/velocity",
cmModePath + "xquery/xquery",
cmModePath + "yaml/yaml",
cmModePath + "erlang/erlang",
cmModePath + "jade/jade",
cmAddonPath + "edit/trailingspace",
cmAddonPath + "dialog/dialog",
cmAddonPath + "search/searchcursor",
cmAddonPath + "search/search",
cmAddonPath + "scroll/annotatescrollbar",
cmAddonPath + "search/matchesonscrollbar",
cmAddonPath + "display/placeholder",
cmAddonPath + "edit/closetag",
cmAddonPath + "fold/foldcode",
cmAddonPath + "fold/foldgutter",
cmAddonPath + "fold/indent-fold",
cmAddonPath + "fold/brace-fold",
cmAddonPath + "fold/xml-fold",
cmAddonPath + "fold/markdown-fold",
cmAddonPath + "fold/comment-fold",
cmAddonPath + "mode/overlay",
cmAddonPath + "selection/active-line",
cmAddonPath + "edit/closebrackets",
cmAddonPath + "display/fullscreen",
cmAddonPath + "search/match-highlighter"
];
define(codeMirrorModules, factory);
}
else
{
define(["jquery"], factory); // for Sea.js
}
}
else
{
window.editormd = factory();
}
}(function() {
if (typeof define == "function" && define.amd) {
$ = arguments[0];
marked = arguments[1];
prettify = arguments[2];
katex = arguments[3];
Raphael = arguments[4];
_ = arguments[5];
flowchart = arguments[6];
CodeMirror = arguments[9];
}
"use strict";
var $ = (typeof (jQuery) !== "undefined") ? jQuery : Zepto;
if (typeof ($) === "undefined") {
return ;
}
/**
* editormd
*
* @param {String} id 编辑器的ID
* @param {Object} options 配置选项 Key/Value
* @returns {Object} editormd 返回editormd对象
*/
var editormd = function (id, options) {
return new editormd.fn.init(id, options);
};
editormd.title = editormd.$name = "Editor.md";
editormd.version = "1.5.0";
editormd.homePage = "https://pandao.github.io/editor.md/";
editormd.classPrefix = "editormd-";
editormd.toolbarModes = {
full : [
"undo", "redo", "|",
"bold", "del", "italic", "quote", "ucwords", "uppercase", "lowercase", "|",
"h1", "h2", "h3", "h4", "h5", "h6", "|",
"list-ul", "list-ol", "hr", "|",
"link", "reference-link", "image", "code", "preformatted-text", "code-block", "table", "datetime", "emoji", "html-entities", "pagebreak", "|",
"goto-line", "watch", "preview", "fullscreen", "clear", "search", "|",
"help", "info"
],
simple : [
"undo", "redo", "|",
"bold", "del", "italic", "quote", "uppercase", "lowercase", "|",
"h1", "h2", "h3", "h4", "h5", "h6", "|",
"list-ul", "list-ol", "hr", "|",
"watch", "preview", "fullscreen", "|",
"help", "info"
],
mini : [
"undo", "redo", "|",
"watch", "preview", "|",
"help", "info"
]
};
editormd.defaults = {
mode : "gfm", //gfm or markdown
name : "", // Form element name
value : "", // value for CodeMirror, if mode not gfm/markdown
theme : "", // Editor.md self themes, before v1.5.0 is CodeMirror theme, default empty
editorTheme : "default", // Editor area, this is CodeMirror theme at v1.5.0
previewTheme : "", // Preview area theme, default empty
markdown : "", // Markdown source code
appendMarkdown : "", // if in init textarea value not empty, append markdown to textarea
width : "100%",
height : "100%",
path : "./lib/", // Dependents module file directory
pluginPath : "", // If this empty, default use settings.path + "../plugins/"
delay : 300, // Delay parse markdown to html, Uint : ms
autoLoadModules : true, // Automatic load dependent module files
watch : true,
placeholder : "Enjoy Markdown! coding now...",
gotoLine : true,
codeFold : false,
autoHeight : false,
autoFocus : true,
autoCloseTags : true,
searchReplace : true,
syncScrolling : true, // true | false | "single", default true
readOnly : false,
tabSize : 4,
indentUnit : 4,
lineNumbers : true,
lineWrapping : true,
autoCloseBrackets : true,
showTrailingSpace : true,
matchBrackets : true,
indentWithTabs : true,
styleSelectedText : true,
matchWordHighlight : true, // options: true, false, "onselected"
styleActiveLine : true, // Highlight the current line
dialogLockScreen : true,
dialogShowMask : true,
dialogDraggable : true,
dialogMaskBgColor : "#fff",
dialogMaskOpacity : 0.1,
fontSize : "13px",
saveHTMLToTextarea : false,
disabledKeyMaps : [],
onload : function() {},
onresize : function() {},
onchange : function() {},
onwatch : null,
onunwatch : null,
onpreviewing : function() {},
onpreviewed : function() {},
onfullscreen : function() {},
onfullscreenExit : function() {},
onscroll : function() {},
onpreviewscroll : function() {},
imageUpload : false,
imageFormats : ["jpg", "jpeg", "gif", "png", "bmp", "webp"],
imageUploadURL : "",
crossDomainUpload : false,
uploadCallbackURL : "",
toc : true, // Table of contents
tocm : false, // Using [TOCM], auto create ToC dropdown menu
tocTitle : "", // for ToC dropdown menu btn
tocDropdown : false,
tocContainer : "",
tocStartLevel : 1, // Said from H1 to create ToC
htmlDecode : false, // Open the HTML tag identification
pageBreak : true, // Enable parse page break [========]
atLink : true, // for @link
emailLink : true, // for email address auto link
taskList : false, // Enable Github Flavored Markdown task lists
emoji : false, // :emoji: , Support Github emoji, Twitter Emoji (Twemoji);
// Support FontAwesome icon emoji :fa-xxx: > Using fontAwesome icon web fonts;
// Support Editor.md logo icon emoji :editormd-logo: :editormd-logo-1x: > 1~8x;
tex : false, // TeX(LaTeX), based on KaTeX
flowChart : false, // flowChart.js only support IE9+
sequenceDiagram : false, // sequenceDiagram.js only support IE9+
previewCodeHighlight : true,
toolbar : true, // show/hide toolbar
toolbarAutoFixed : true, // on window scroll auto fixed position
toolbarIcons : "full",
toolbarTitles : {},
toolbarHandlers : {
ucwords : function() {
return editormd.toolbarHandlers.ucwords;
},
lowercase : function() {
return editormd.toolbarHandlers.lowercase;
}
},
toolbarCustomIcons : { // using html tag create toolbar icon, unused default <a> tag.
lowercase : "<a href=\"javascript:;\" title=\"Lowercase\" unselectable=\"on\"><i class=\"fa\" name=\"lowercase\" style=\"font-size:24px;margin-top: -10px;\">a</i></a>",
"ucwords" : "<a href=\"javascript:;\" title=\"ucwords\" unselectable=\"on\"><i class=\"fa\" name=\"ucwords\" style=\"font-size:20px;margin-top: -3px;\">Aa</i></a>"
},
toolbarIconsClass : {
undo : "fa-undo",
redo : "fa-repeat",
bold : "fa-bold",
del : "fa-strikethrough",
italic : "fa-italic",
quote : "fa-quote-left",
uppercase : "fa-font",
h1 : editormd.classPrefix + "bold",
h2 : editormd.classPrefix + "bold",
h3 : editormd.classPrefix + "bold",
h4 : editormd.classPrefix + "bold",
h5 : editormd.classPrefix + "bold",
h6 : editormd.classPrefix + "bold",
"list-ul" : "fa-list-ul",
"list-ol" : "fa-list-ol",
hr : "fa-minus",
link : "fa-link",
"reference-link" : "fa-anchor",
image : "fa-picture-o",
code : "fa-code",
"preformatted-text" : "fa-file-code-o",
"code-block" : "fa-file-code-o",
table : "fa-table",
datetime : "fa-clock-o",
emoji : "fa-smile-o",
"html-entities" : "fa-copyright",
pagebreak : "fa-newspaper-o",
"goto-line" : "fa-terminal", // fa-crosshairs
watch : "fa-eye-slash",
unwatch : "fa-eye",
preview : "fa-desktop",
search : "fa-search",
fullscreen : "fa-arrows-alt",
clear : "fa-eraser",
help : "fa-question-circle",
info : "fa-info-circle"
},
toolbarIconTexts : {},
lang : {
name : "zh-cn",
description : "开源在线Markdown编辑器<br/>Open source online Markdown editor.",
tocTitle : "目录",
toolbar : {
undo : "撤销（Ctrl+Z）",
redo : "重做（Ctrl+Y）",
bold : "粗体",
del : "删除线",
italic : "斜体",
quote : "引用",
ucwords : "将每个单词首字母转成大写",
uppercase : "将所选转换成大写",
lowercase : "将所选转换成小写",
h1 : "标题1",
h2 : "标题2",
h3 : "标题3",
h4 : "标题4",
h5 : "标题5",
h6 : "标题6",
"list-ul" : "无序列表",
"list-ol" : "有序列表",
hr : "横线",
link : "链接",
"reference-link" : "引用链接",
image : "添加图片",
code : "行内代码",
"preformatted-text" : "预格式文本 / 代码块（缩进风格）",
"code-block" : "代码块（多语言风格）",
table : "添加表格",
datetime : "日期时间",
emoji : "Emoji表情",
"html-entities" : "HTML实体字符",
pagebreak : "插入分页符",
"goto-line" : "跳转到行",
watch : "关闭实时预览",
unwatch : "开启实时预览",
preview : "全窗口预览HTML（按 Shift + ESC还原）",
fullscreen : "全屏（按ESC还原）",
clear : "清空",
search : "搜索",
help : "使用帮助",
info : "关于" + editormd.title
},
buttons : {
enter : "确定",
cancel : "取消",
close : "关闭"
},
dialog : {
link : {
title : "添加链接",
url : "链接地址",
urlTitle : "链接标题",
urlEmpty : "错误：请填写链接地址。"
},
referenceLink : {
title : "添加引用链接",
name : "引用名称",
url : "链接地址",
urlId : "链接ID",
urlTitle : "链接标题",
nameEmpty: "错误：引用链接的名称不能为空。",
idEmpty : "错误：请填写引用链接的ID。",
urlEmpty : "错误：请填写引用链接的URL地址。"
},
image : {
title : "添加图片",
url : "图片地址",
link : "图片链接",
alt : "图片描述",
uploadButton : "本地上传",
imageURLEmpty : "错误：图片地址不能为空。",
uploadFileEmpty : "错误：上传的图片不能为空。",
formatNotAllowed : "错误：只允许上传图片文件，允许上传的图片文件格式有："
},
preformattedText : {
title : "添加预格式文本或代码块",
emptyAlert : "错误：请填写预格式文本或代码的内容。"
},
codeBlock : {
title : "添加代码块",
selectLabel : "代码语言：",
selectDefaultText : "请选择代码语言",
otherLanguage : "其他语言",
unselectedLanguageAlert : "错误：请选择代码所属的语言类型。",
codeEmptyAlert : "错误：请填写代码内容。"
},
htmlEntities : {
title : "HTML 实体字符"
},
help : {
title : "使用帮助"
}
}
}
};
editormd.classNames = {
tex : editormd.classPrefix + "tex"
};
editormd.dialogZindex = 99999;
editormd.$katex = null;
editormd.$marked = null;
editormd.$CodeMirror = null;
editormd.$prettyPrint = null;
var timer, flowchartTimer;
editormd.prototype = editormd.fn = {
state : {
watching : false,
loaded : false,
preview : false,
fullscreen : false
},
/**
* 构造函数/实例初始化
* Constructor / instance initialization
*
* @param {String} id 编辑器的ID
* @param {Object} [options={}] 配置选项 Key/Value
* @returns {editormd} 返回editormd的实例对象
*/
init : function (id, options) {
options = options || {};
if (typeof id === "object")
{
options = id;
}
var _this = this;
var classPrefix = this.classPrefix = editormd.classPrefix;
var settings = this.settings = $.extend(true, editormd.defaults, options);
id = (typeof id === "object") ? settings.id : id;
var editor = this.editor = $("#" + id);
this.id = id;
this.lang = settings.lang;
var classNames = this.classNames = {
textarea : {
html : classPrefix + "html-textarea",
markdown : classPrefix + "markdown-textarea"
}
};
settings.pluginPath = (settings.pluginPath === "") ? settings.path + "../plugins/" : settings.pluginPath;
this.state.watching = (settings.watch) ? true : false;
if ( !editor.hasClass("editormd") ) {
editor.addClass("editormd");
}
editor.css({
width : (typeof settings.width === "number") ? settings.width + "px" : settings.width,
height : (typeof settings.height === "number") ? settings.height + "px" : settings.height
});
if (settings.autoHeight)
{
editor.css("height", "auto");
}
var markdownTextarea = this.markdownTextarea = editor.children("textarea");
if (markdownTextarea.length < 1)
{
editor.append("<textarea></textarea>");
markdownTextarea = this.markdownTextarea = editor.children("textarea");
}
markdownTextarea.addClass(classNames.textarea.markdown).attr("placeholder", settings.placeholder);
if (typeof markdownTextarea.attr("name") === "undefined" || markdownTextarea.attr("name") === "")
{
markdownTextarea.attr("name", (settings.name !== "") ? settings.name : id + "-markdown-doc");
}
var appendElements = [
(!settings.readOnly) ? "<a href=\"javascript:;\" class=\"fa fa-close " + classPrefix + "preview-close-btn\"></a>" : "",
( (settings.saveHTMLToTextarea) ? "<textarea class=\"" + classNames.textarea.html + "\" name=\"" + id + "-html-code\"></textarea>" : "" ),
"<div class=\"" + classPrefix + "preview\"><div class=\"markdown-body " + classPrefix + "preview-container\"></div></div>",
"<div class=\"" + classPrefix + "container-mask\" style=\"display:block;\"></div>",
"<div class=\"" + classPrefix + "mask\"></div>"
].join("\n");
editor.append(appendElements).addClass(classPrefix + "vertical");
if (settings.theme !== "")
{
editor.addClass(classPrefix + "theme-" + settings.theme);
}
this.mask = editor.children("." + classPrefix + "mask");
this.containerMask = editor.children("." + classPrefix + "container-mask");
if (settings.markdown !== "")
{
markdownTextarea.val(settings.markdown);
}
if (settings.appendMarkdown !== "")
{
markdownTextarea.val(markdownTextarea.val() + settings.appendMarkdown);
}
this.htmlTextarea = editor.children("." + classNames.textarea.html);
this.preview = editor.children("." + classPrefix + "preview");
this.previewContainer = this.preview.children("." + classPrefix + "preview-container");
if (settings.previewTheme !== "")
{
this.preview.addClass(classPrefix + "preview-theme-" + settings.previewTheme);
}
if (typeof define === "function" && define.amd)
{
if (typeof katex !== "undefined")
{
editormd.$katex = katex;
}
if (settings.searchReplace && !settings.readOnly)
{
editormd.loadCSS(settings.path + "codemirror/addon/dialog/dialog");
editormd.loadCSS(settings.path + "codemirror/addon/search/matchesonscrollbar");
}
}
if ((typeof define === "function" && define.amd) || !settings.autoLoadModules)
{
if (typeof CodeMirror !== "undefined") {
editormd.$CodeMirror = CodeMirror;
}
if (typeof marked !== "undefined") {
editormd.$marked = marked;
}
this.setCodeMirror().setToolbar().loadedDisplay();
}
else
{
this.loadQueues();
}
return this;
},
/**
* 所需组件加载队列
* Required components loading queue
*
* @returns {editormd} 返回editormd的实例对象
*/
loadQueues : function() {
var _this = this;
var settings = this.settings;
var loadPath = settings.path;
var loadFlowChartOrSequenceDiagram = function() {
if (editormd.isIE8)
{
_this.loadedDisplay();
return ;
}
if (settings.flowChart || settings.sequenceDiagram)
{
editormd.loadScript(loadPath + "raphael.min", function() {
editormd.loadScript(loadPath + "underscore.min", function() {
if (!settings.flowChart && settings.sequenceDiagram)
{
editormd.loadScript(loadPath + "sequence-diagram.min", function() {
_this.loadedDisplay();
});
}
else if (settings.flowChart && !settings.sequenceDiagram)
{
editormd.loadScript(loadPath + "flowchart.min", function() {
editormd.loadScript(loadPath + "jquery.flowchart.min", function() {
_this.loadedDisplay();
});
});
}
else if (settings.flowChart && settings.sequenceDiagram)
{
editormd.loadScript(loadPath + "flowchart.min", function() {
editormd.loadScript(loadPath + "jquery.flowchart.min", function() {
editormd.loadScript(loadPath + "sequence-diagram.min", function() {
_this.loadedDisplay();
});
});
});
}
});
});
}
else
{
_this.loadedDisplay();
}
};
editormd.loadCSS(loadPath + "codemirror/codemirror.min");
if (settings.searchReplace && !settings.readOnly)
{
editormd.loadCSS(loadPath + "codemirror/addon/dialog/dialog");
editormd.loadCSS(loadPath + "codemirror/addon/search/matchesonscrollbar");
}
if (settings.codeFold)
{
editormd.loadCSS(loadPath + "codemirror/addon/fold/foldgutter");
}
editormd.loadScript(loadPath + "codemirror/codemirror.min", function() {
editormd.$CodeMirror = CodeMirror;
editormd.loadScript(loadPath + "codemirror/modes.min", function() {
editormd.loadScript(loadPath + "codemirror/addons.min", function() {
_this.setCodeMirror();
if (settings.mode !== "gfm" && settings.mode !== "markdown")
{
_this.loadedDisplay();
return false;
}
_this.setToolbar();
editormd.loadScript(loadPath + "marked.min", function() {
editormd.$marked = marked;
if (settings.previewCodeHighlight)
{
editormd.loadScript(loadPath + "prettify.min", function() {
loadFlowChartOrSequenceDiagram();
});
}
else
{
loadFlowChartOrSequenceDiagram();
}
});
});
});
});
return this;
},
/**
* 设置 Editor.md 的整体主题，主要是工具栏
* Setting Editor.md theme
*
* @returns {editormd} 返回editormd的实例对象
*/
setTheme : function(theme) {
var editor = this.editor;
var oldTheme = this.settings.theme;
var themePrefix = this.classPrefix + "theme-";
editor.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
this.settings.theme = theme;
return this;
},
/**
* 设置 CodeMirror（编辑区）的主题
* Setting CodeMirror (Editor area) theme
*
* @returns {editormd} 返回editormd的实例对象
*/
setEditorTheme : function(theme) {
var settings = this.settings;
settings.editorTheme = theme;
if (theme !== "default")
{
editormd.loadCSS(settings.path + "codemirror/theme/" + settings.editorTheme);
}
this.cm.setOption("theme", theme);
return this;
},
/**
* setEditorTheme() 的别名
* setEditorTheme() alias
*
* @returns {editormd} 返回editormd的实例对象
*/
setCodeMirrorTheme : function (theme) {
this.setEditorTheme(theme);
return this;
},
/**
* 设置 Editor.md 的主题
* Setting Editor.md theme
*
* @returns {editormd} 返回editormd的实例对象
*/
setPreviewTheme : function(theme) {
var preview = this.preview;
var oldTheme = this.settings.previewTheme;
var themePrefix = this.classPrefix + "preview-theme-";
preview.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
this.settings.previewTheme = theme;
return this;
},
/**
* 配置和初始化CodeMirror组件
* CodeMirror initialization
*
* @returns {editormd} 返回editormd的实例对象
*/
setCodeMirror : function() {
var settings = this.settings;
var editor = this.editor;
if (settings.editorTheme !== "default")
{
editormd.loadCSS(settings.path + "codemirror/theme/" + settings.editorTheme);
}
var codeMirrorConfig = {
mode : settings.mode,
theme : settings.editorTheme,
tabSize : settings.tabSize,
dragDrop : false,
autofocus : settings.autoFocus,
autoCloseTags : settings.autoCloseTags,
readOnly : (settings.readOnly) ? "nocursor" : false,
indentUnit : settings.indentUnit,
lineNumbers : settings.lineNumbers,
lineWrapping : settings.lineWrapping,
extraKeys : {
"Ctrl-Q": function(cm) {
cm.foldCode(cm.getCursor());
}
},
foldGutter : settings.codeFold,
gutters : ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
matchBrackets : settings.matchBrackets,
indentWithTabs : settings.indentWithTabs,
styleActiveLine : settings.styleActiveLine,
styleSelectedText : settings.styleSelectedText,
autoCloseBrackets : settings.autoCloseBrackets,
showTrailingSpace : settings.showTrailingSpace,
highlightSelectionMatches : ( (!settings.matchWordHighlight) ? false : { showToken: (settings.matchWordHighlight === "onselected") ? false : /\w/ } )
};
this.codeEditor = this.cm = editormd.$CodeMirror.fromTextArea(this.markdownTextarea[0], codeMirrorConfig);
this.codeMirror = this.cmElement = editor.children(".CodeMirror");
if (settings.value !== "")
{
this.cm.setValue(settings.value);
}
this.codeMirror.css({
fontSize : settings.fontSize,
width : (!settings.watch) ? "100%" : "50%"
});
if (settings.autoHeight)
{
this.codeMirror.css("height", "auto");
this.cm.setOption("viewportMargin", Infinity);
}
if (!settings.lineNumbers)
{
this.codeMirror.find(".CodeMirror-gutters").css("border-right", "none");
}
return this;
},
/**
* 获取CodeMirror的配置选项
* Get CodeMirror setting options
*
* @returns {Mixed} return CodeMirror setting option value
*/
getCodeMirrorOption : function(key) {
return this.cm.getOption(key);
},
/**
* 配置和重配置CodeMirror的选项
* CodeMirror setting options / resettings
*
* @returns {editormd} 返回editormd的实例对象
*/
setCodeMirrorOption : function(key, value) {
this.cm.setOption(key, value);
return this;
},
/**
* 添加 CodeMirror 键盘快捷键
* Add CodeMirror keyboard shortcuts key map
*
* @returns {editormd} 返回editormd的实例对象
*/
addKeyMap : function(map, bottom) {
this.cm.addKeyMap(map, bottom);
return this;
},
/**
* 移除 CodeMirror 键盘快捷键
* Remove CodeMirror keyboard shortcuts key map
*
* @returns {editormd} 返回editormd的实例对象
*/
removeKeyMap : function(map) {
this.cm.removeKeyMap(map);
return this;
},
/**
* 跳转到指定的行
* Goto CodeMirror line
*
* @param {String|Intiger} line line number or "first"|"last"
* @returns {editormd} 返回editormd的实例对象
*/
gotoLine : function (line) {
var settings = this.settings;
if (!settings.gotoLine)
{
return this;
}
var cm = this.cm;
var editor = this.editor;
var count = cm.lineCount();
var preview = this.preview;
if (typeof line === "string")
{
if(line === "last")
{
line = count;
}
if (line === "first")
{
line = 1;
}
}
if (typeof line !== "number")
{
alert("Error: The line number must be an integer.");
return this;
}
line = parseInt(line) - 1;
if (line > count)
{
alert("Error: The line number range 1-" + count);
return this;
}
cm.setCursor( {line : line, ch : 0} );
var scrollInfo = cm.getScrollInfo();
var clientHeight = scrollInfo.clientHeight;
var coords = cm.charCoords({line : line, ch : 0}, "local");
cm.scrollTo(null, (coords.top + coords.bottom - clientHeight) / 2);
if (settings.watch)
{
var cmScroll = this.codeMirror.find(".CodeMirror-scroll")[0];
var height = $(cmScroll).height();
var scrollTop = cmScroll.scrollTop;
var percent = (scrollTop / cmScroll.scrollHeight);
if (scrollTop === 0)
{
preview.scrollTop(0);
}
else if (scrollTop + height >= cmScroll.scrollHeight - 16)
{
preview.scrollTop(preview[0].scrollHeight);
}
else
{
preview.scrollTop(preview[0].scrollHeight * percent);
}
}
cm.focus();
return this;
},
/**
* 扩展当前实例对象，可同时设置多个或者只设置一个
* Extend editormd instance object, can mutil setting.
*
* @returns {editormd} this(editormd instance object.)
*/
extend : function() {
if (typeof arguments[1] !== "undefined")
{
if (typeof arguments[1] === "function")
{
arguments[1] = $.proxy(arguments[1], this);
}
this[arguments[0]] = arguments[1];
}
if (typeof arguments[0] === "object" && typeof arguments[0].length === "undefined")
{
$.extend(true, this, arguments[0]);
}
return this;
},
/**
* 设置或扩展当前实例对象，单个设置
* Extend editormd instance object, one by one
*
* @param {String|Object} key option key
* @param {String|Object} value option value
* @returns {editormd} this(editormd instance object.)
*/
set : function (key, value) {
if (typeof value !== "undefined" && typeof value === "function")
{
value = $.proxy(value, this);
}
this[key] = value;
return this;
},
/**
* 重新配置
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