deblan-mirror/simplemde-markdown-editor
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Code Issues Projects Releases Wiki Activity
simplemde-markdown-editor/src/js/simplemde.js
Wes Cossick a64f07e1c3 Autosave improvements (see description) 
Checks that localStorage is available for all features, logs error if
not
Added function to clear the autosaved value
Prefixed the autosave localStorage key with “smde_”
2015-11-19 17:22:03 -06:00

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JavaScript
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/*global require,module*/
"use strict";
var CodeMirror = require("codemirror");
require("codemirror/addon/edit/continuelist.js");
require("./codemirror/tablist");
require("codemirror/addon/display/fullscreen.js");
require("codemirror/mode/markdown/markdown.js");
require("codemirror/addon/mode/overlay.js");
require("codemirror/mode/gfm/gfm.js");
require("codemirror/mode/xml/xml.js");
require("spell-checker");
var marked = require("marked");
// Some variables
var isMac = /Mac/.test(navigator.platform);
var shortcuts = {
"Cmd-B": toggleBold,
"Cmd-I": toggleItalic,
"Cmd-K": drawLink,
"Cmd-H": toggleHeadingSmaller,
"Shift-Cmd-H": toggleHeadingBigger,
"Cmd-Alt-I": drawImage,
"Cmd-'": toggleBlockquote,
"Cmd-Alt-L": toggleOrderedList,
"Cmd-L": toggleUnorderedList,
"Cmd-Alt-C": toggleCodeBlock,
"Cmd-P": togglePreview
};
var isMobile = function() {
var check = false;
(function(a) {
if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) check = true;
})(navigator.userAgent || navigator.vendor || window.opera);
return check;
};
/**
* Fix shortcut. Mac use Command, others use Ctrl.
*/
function fixShortcut(name) {
if(isMac) {
name = name.replace("Ctrl", "Cmd");
} else {
name = name.replace("Cmd", "Ctrl");
}
return name;
}
/**
* Create icon element for toolbar.
*/
function createIcon(options, enableTooltips) {
options = options || {};
var el = document.createElement("a");
enableTooltips = (enableTooltips == undefined) ? true : enableTooltips;
if(options.title && enableTooltips) {
el.title = options.title;
if(isMac) {
el.title = el.title.replace("Ctrl", "⌘");
el.title = el.title.replace("Alt", "⌥");
}
}
el.className = options.className;
return el;
}
function createSep() {
var el = document.createElement("i");
el.className = "separator";
el.innerHTML = "|";
return el;
}
/**
* The state of CodeMirror at the given position.
*/
function getState(cm, pos) {
pos = pos || cm.getCursor("start");
var stat = cm.getTokenAt(pos);
if(!stat.type) return {};
var types = stat.type.split(" ");
var ret = {},
data, text;
for(var i = 0; i < types.length; i++) {
data = types[i];
if(data === "strong") {
ret.bold = true;
} else if(data === "variable-2") {
text = cm.getLine(pos.line);
if(/^\s*\d+\.\s/.test(text)) {
ret["ordered-list"] = true;
} else {
ret["unordered-list"] = true;
}
} else if(data === "atom") {
ret.quote = true;
} else if(data === "em") {
ret.italic = true;
} else if(data === "quote") {
ret.quote = true;
} else if(data === "strikethrough") {
ret.strikethrough = true;
} else if(data === "comment") {
ret.code = true;
}
}
return ret;
}
// Saved overflow setting
var saved_overflow = "";
/**
* Toggle full screen of the editor.
*/
function toggleFullScreen(editor) {
// Set fullscreen
var cm = editor.codemirror;
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
// Prevent scrolling on body during fullscreen active
if(cm.getOption("fullScreen")) {
saved_overflow = document.body.style.overflow;
document.body.style.overflow = "hidden";
} else {
document.body.style.overflow = saved_overflow;
}
// Update toolbar class
var wrap = cm.getWrapperElement();
if(!/fullscreen/.test(wrap.previousSibling.className)) {
wrap.previousSibling.className += " fullscreen";
} else {
wrap.previousSibling.className = wrap.previousSibling.className.replace(/\s*fullscreen\b/, "");
}
// Update toolbar button
var toolbarButton = editor.toolbarElements.fullscreen;
if(!/active/.test(toolbarButton.className)) {
toolbarButton.className += " active";
} else {
toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
}
// Hide side by side if needed
var sidebyside = cm.getWrapperElement().nextSibling;
if(/editor-preview-active-side/.test(sidebyside.className))
toggleSideBySide(editor);
}
/**
* Action for toggling bold.
*/
function toggleBold(editor) {
_toggleBlock(editor, "bold", "**");
}
/**
* Action for toggling italic.
*/
function toggleItalic(editor) {
_toggleBlock(editor, "italic", "*");
}
/**
* Action for toggling strikethrough.
*/
function toggleStrikethrough(editor) {
_toggleBlock(editor, "strikethrough", "~~");
}
/**
* Action for toggling code block.
*/
function toggleCodeBlock(editor) {
_toggleBlock(editor, "code", "```\r\n", "\r\n```");
}
/**
* Action for toggling blockquote.
*/
function toggleBlockquote(editor) {
var cm = editor.codemirror;
_toggleLine(cm, "quote");
}
/**
* Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal
*/
function toggleHeadingSmaller(editor) {
var cm = editor.codemirror;
_toggleHeading(cm, "smaller");
}
/**
* Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal
*/
function toggleHeadingBigger(editor) {
var cm = editor.codemirror;
_toggleHeading(cm, "bigger");
}
/**
* Action for toggling heading size 1
*/
function toggleHeading1(editor) {
var cm = editor.codemirror;
_toggleHeading(cm, undefined, 1);
}
/**
* Action for toggling heading size 2
*/
function toggleHeading2(editor) {
var cm = editor.codemirror;
_toggleHeading(cm, undefined, 2);
}
/**
* Action for toggling heading size 3
*/
function toggleHeading3(editor) {
var cm = editor.codemirror;
_toggleHeading(cm, undefined, 3);
}
/**
* Action for toggling ul.
*/
function toggleUnorderedList(editor) {
var cm = editor.codemirror;
_toggleLine(cm, "unordered-list");
}
/**
* Action for toggling ol.
*/
function toggleOrderedList(editor) {
var cm = editor.codemirror;
_toggleLine(cm, "ordered-list");
}
/**
* Action for drawing a link.
*/
function drawLink(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
_replaceSelection(cm, stat.link, options.insertTexts.link);
}
/**
* Action for drawing an img.
*/
function drawImage(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
_replaceSelection(cm, stat.image, options.insertTexts.image);
}
/**
* Action for drawing a horizontal rule.
*/
function drawHorizontalRule(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
_replaceSelection(cm, stat.image, options.insertTexts.horizontalRule);
}
/**
* Undo action.
*/
function undo(editor) {
var cm = editor.codemirror;
cm.undo();
cm.focus();
}
/**
* Redo action.
*/
function redo(editor) {
var cm = editor.codemirror;
cm.redo();
cm.focus();
}
/**
* Toggle side by side preview
*/
function toggleSideBySide(editor) {
var cm = editor.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.nextSibling;
var toolbarButton = editor.toolbarElements["side-by-side"];
if(/editor-preview-active-side/.test(preview.className)) {
preview.className = preview.className.replace(
/\s*editor-preview-active-side\s*/g, ""
);
toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
wrapper.className = wrapper.className.replace(/\s*CodeMirror-sided\s*/g, " ");
} else {
// When the preview button is clicked for the first time,
// give some time for the transition from editor.css to fire and the view to slide from right to left,
// instead of just appearing.
setTimeout(function() {
if(!cm.getOption("fullScreen"))
toggleFullScreen(editor);
preview.className += " editor-preview-active-side";
}, 1);
toolbarButton.className += " active";
wrapper.className += " CodeMirror-sided";
}
// Hide normal preview if active
var previewNormal = wrapper.lastChild;
if(/editor-preview-active/.test(previewNormal.className)) {
previewNormal.className = previewNormal.className.replace(
/\s*editor-preview-active\s*/g, ""
);
var toolbar = editor.toolbarElements.preview;
var toolbar_div = wrapper.previousSibling;
toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
}
// Start preview with the current text
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
// Updates preview
cm.on("update", function() {
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
});
}
/**
* Preview action.
*/
function togglePreview(editor) {
var cm = editor.codemirror;
var wrapper = cm.getWrapperElement();
var toolbar_div = wrapper.previousSibling;
var toolbar = editor.toolbarElements.preview;
var preview = wrapper.lastChild;
if(!preview || !/editor-preview/.test(preview.className)) {
preview = document.createElement("div");
preview.className = "editor-preview";
wrapper.appendChild(preview);
}
if(/editor-preview-active/.test(preview.className)) {
preview.className = preview.className.replace(
/\s*editor-preview-active\s*/g, ""
);
toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
} else {
// When the preview button is clicked for the first time,
// give some time for the transition from editor.css to fire and the view to slide from right to left,
// instead of just appearing.
setTimeout(function() {
preview.className += " editor-preview-active";
}, 1);
toolbar.className += " active";
toolbar_div.className += " disabled-for-preview";
}
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
// Turn off side by side if needed
var sidebyside = cm.getWrapperElement().nextSibling;
if(/editor-preview-active-side/.test(sidebyside.className))
toggleSideBySide(editor);
}
function _replaceSelection(cm, active, startEnd) {
if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
return;
var text;
var start = startEnd[0];
var end = startEnd[1];
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
if(active) {
text = cm.getLine(startPoint.line);
start = text.slice(0, startPoint.ch);
end = text.slice(startPoint.ch);
cm.replaceRange(start + end, {
line: startPoint.line,
ch: 0
});
} else {
text = cm.getSelection();
cm.replaceSelection(start + text + end);
startPoint.ch += start.length;
if(startPoint !== endPoint) {
endPoint.ch += start.length;
}
}
cm.setSelection(startPoint, endPoint);
cm.focus();
}
function _toggleHeading(cm, direction, size) {
if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
return;
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
for(var i = startPoint.line; i <= endPoint.line; i++) {
(function(i) {
var text = cm.getLine(i);
var currHeadingLevel = text.search(/[^#]/);
if(direction !== undefined) {
if(currHeadingLevel <= 0) {
if(direction == "bigger") {
text = "###### " + text;
} else {
text = "# " + text;
}
} else if(currHeadingLevel == 6 && direction == "smaller") {
text = text.substr(7);
} else if(currHeadingLevel == 1 && direction == "bigger") {
text = text.substr(2);
} else {
if(direction == "bigger") {
text = text.substr(1);
} else {
text = "#" + text;
}
}
} else {
if(size == 1) {
if(currHeadingLevel <= 0) {
text = "# " + text;
} else if(currHeadingLevel == size) {
text = text.substr(currHeadingLevel + 1);
} else {
text = "# " + text.substr(currHeadingLevel + 1);
}
} else if(size == 2) {
if(currHeadingLevel <= 0) {
text = "## " + text;
} else if(currHeadingLevel == size) {
text = text.substr(currHeadingLevel + 1);
} else {
text = "## " + text.substr(currHeadingLevel + 1);
}
} else {
if(currHeadingLevel <= 0) {
text = "### " + text;
} else if(currHeadingLevel == size) {
text = text.substr(currHeadingLevel + 1);
} else {
text = "### " + text.substr(currHeadingLevel + 1);
}
}
}
cm.replaceRange(text, {
line: i,
ch: 0
}, {
line: i,
ch: 99999999999999
});
})(i);
}
cm.focus();
}
function _toggleLine(cm, name) {
if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
return;
var stat = getState(cm);
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
var repl = {
"quote": /^(\s*)\>\s+/,
"unordered-list": /^(\s*)(\*|\-|\+)\s+/,
"ordered-list": /^(\s*)\d+\.\s+/
};
var map = {
"quote": "> ",
"unordered-list": "* ",
"ordered-list": "1. "
};
for(var i = startPoint.line; i <= endPoint.line; i++) {
(function(i) {
var text = cm.getLine(i);
if(stat[name]) {
text = text.replace(repl[name], "$1");
} else {
text = map[name] + text;
}
cm.replaceRange(text, {
line: i,
ch: 0
}, {
line: i,
ch: 99999999999999
});
})(i);
}
cm.focus();
}
function _toggleBlock(editor, type, start_chars, end_chars) {
if(/editor-preview-active/.test(editor.codemirror.getWrapperElement().lastChild.className))
return;
end_chars = (typeof end_chars === "undefined") ? start_chars : end_chars;
var cm = editor.codemirror;
var stat = getState(cm);
var text;
var start = start_chars;
var end = end_chars;
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
if(stat[type]) {
text = cm.getLine(startPoint.line);
start = text.slice(0, startPoint.ch);
end = text.slice(startPoint.ch);
if(type == "bold") {
start = start.replace(/(\*\*|__)(?![\s\S]*(\*\*|__))/, "");
end = end.replace(/(\*\*|__)/, "");
} else if(type == "italic") {
start = start.replace(/(\*|_)(?![\s\S]*(\*|_))/, "");
end = end.replace(/(\*|_)/, "");
} else if(type == "strikethrough") {
start = start.replace(/(\*\*|~~)(?![\s\S]*(\*\*|~~))/, "");
end = end.replace(/(\*\*|~~)/, "");
}
cm.replaceRange(start + end, {
line: startPoint.line,
ch: 0
}, {
line: startPoint.line,
ch: 99999999999999
});
if(type == "bold" || type == "strikethrough") {
startPoint.ch -= 2;
if(startPoint !== endPoint) {
endPoint.ch -= 2;
}
} else if(type == "italic") {
startPoint.ch -= 1;
if(startPoint !== endPoint) {
endPoint.ch -= 1;
}
}
} else {
text = cm.getSelection();
if(type == "bold") {
text = text.split("**").join("");
text = text.split("__").join("");
} else if(type == "italic") {
text = text.split("*").join("");
text = text.split("_").join("");
} else if(type == "strikethrough") {
text = text.split("~~").join("");
}
cm.replaceSelection(start + text + end);
startPoint.ch += start_chars.length;
endPoint.ch = startPoint.ch + text.length;
}
cm.setSelection(startPoint, endPoint);
cm.focus();
}
// Merge the properties of one object into another.
function _mergeProperties(target, source) {
for(var property in source) {
if(source.hasOwnProperty(property)) {
if(source[property] instanceof Array) {
target[property] = source[property].concat(target[property] instanceof Array ? target[property] : []);
} else if(
source[property] !== null &&
typeof source[property] === "object" &&
source[property].constructor === Object
) {
target[property] = _mergeProperties(target[property] || {}, source[property]);
} else {
target[property] = source[property];
}
}
}
return target;
}
// Merge an arbitrary number of objects into one.
function extend(target) {
for(var i = 1; i < arguments.length; i++) {
target = _mergeProperties(target, arguments[i]);
}
return target;
}
/* The right word count in respect for CJK. */
function wordCount(data) {
var pattern = /[a-zA-Z0-9_\u0392-\u03c9]+|[\u4E00-\u9FFF\u3400-\u4dbf\uf900-\ufaff\u3040-\u309f\uac00-\ud7af]+/g;
var m = data.match(pattern);
var count = 0;
if(m === null) return count;
for(var i = 0; i < m.length; i++) {
if(m[i].charCodeAt(0) >= 0x4E00) {
count += m[i].length;
} else {
count += 1;
}
}
return count;
}
var toolbarBuiltInButtons = {
"bold": {
name: "bold",
action: toggleBold,
className: "fa fa-bold",
title: "Bold (Ctrl+B)"
},
"italic": {
name: "italic",
action: toggleItalic,
className: "fa fa-italic",
title: "Italic (Ctrl+I)"
},
"strikethrough": {
name: "strikethrough",
action: toggleStrikethrough,
className: "fa fa-strikethrough",
title: "Strikethrough"
},
"heading": {
name: "heading",
action: toggleHeadingSmaller,
className: "fa fa-header",
title: "Heading (Ctrl+H)"
},
"heading-smaller": {
name: "heading-smaller",
action: toggleHeadingSmaller,
className: "fa fa-header fa-header-x fa-header-smaller",
title: "Smaller Heading (Ctrl+H)"
},
"heading-bigger": {
name: "heading-bigger",
action: toggleHeadingBigger,
className: "fa fa-header fa-header-x fa-header-bigger",
title: "Bigger Heading (Shift+Ctrl+H)"
},
"heading-1": {
name: "heading-1",
action: toggleHeading1,
className: "fa fa-header fa-header-x fa-header-1",
title: "Big Heading"
},
"heading-2": {
name: "heading-2",
action: toggleHeading2,
className: "fa fa-header fa-header-x fa-header-2",
title: "Medium Heading"
},
"heading-3": {
name: "heading-3",
action: toggleHeading3,
className: "fa fa-header fa-header-x fa-header-3",
title: "Small Heading"
},
"code": {
name: "code",
action: toggleCodeBlock,
className: "fa fa-code",
title: "Code (Ctrl+Alt+C)"
},
"quote": {
name: "quote",
action: toggleBlockquote,
className: "fa fa-quote-left",
title: "Quote (Ctrl+')"
},
"unordered-list": {
name: "unordered-list",
action: toggleUnorderedList,
className: "fa fa-list-ul",
title: "Generic List (Ctrl+L)"
},
"ordered-list": {
name: "ordered-list",
action: toggleOrderedList,
className: "fa fa-list-ol",
title: "Numbered List (Ctrl+Alt+L)"
},
"link": {
name: "link",
action: drawLink,
className: "fa fa-link",
title: "Create Link (Ctrl+K)"
},
"image": {
name: "image",
action: drawImage,
className: "fa fa-picture-o",
title: "Insert Image (Ctrl+Alt+I)"
},
"horizontal-rule": {
name: "horizontal-rule",
action: drawHorizontalRule,
className: "fa fa-minus",
title: "Insert Horizontal Line"
},
"preview": {
name: "preview",
action: togglePreview,
className: "fa fa-eye no-disable",
title: "Toggle Preview (Ctrl+P)"
},
"side-by-side": {
name: "side-by-side",
action: toggleSideBySide,
className: "fa fa-columns no-disable no-mobile",
title: "Toggle Side by Side (F9)"
},
"fullscreen": {
name: "fullscreen",
action: toggleFullScreen,
className: "fa fa-arrows-alt no-disable no-mobile",
title: "Toggle Fullscreen (F11)"
},
"guide": {
name: "guide",
action: "http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide",
className: "fa fa-question-circle",
title: "Markdown Guide"
}
};
var insertTexts = {
link: ["[", "](http://)"],
image: ["![](http://", ")"],
horizontalRule: ["", "\n\n-----\n\n"]
};
/**
* Interface of SimpleMDE.
*/
function SimpleMDE(options) {
// Handle options parameter
options = options || {};
// Used later to refer to it"s parent
options.parent = this;
// Check if Font Awesome needs to be auto downloaded
var autoDownloadFA = true;
if(options.autoDownloadFontAwesome === false) {
autoDownloadFA = false;
}
if(options.autoDownloadFontAwesome !== true) {
var styleSheets = document.styleSheets;
for(var i = 0; i < styleSheets.length; i++) {
if(!styleSheets[i].href)
continue;
if(styleSheets[i].href.indexOf("//maxcdn.bootstrapcdn.com/font-awesome/") > -1) {
autoDownloadFA = false;
}
}
}
if(autoDownloadFA) {
var link = document.createElement("link");
link.rel = "stylesheet";
link.href = "https://maxcdn.bootstrapcdn.com/font-awesome/latest/css/font-awesome.min.css";
document.getElementsByTagName("head")[0].appendChild(link);
}
// Find the textarea to use
if(options.element) {
this.element = options.element;
} else if(options.element === null) {
// This means that the element option was specified, but no element was found
console.log("SimpleMDE: Error. No element was found.");
return;
}
// Handle toolbar and status bar
if(options.toolbar !== false)
options.toolbar = options.toolbar || SimpleMDE.toolbar;
if(!options.hasOwnProperty("status")) {
options.status = ["autosave", "lines", "words", "cursor"];
}
// Add default preview rendering function
if(!options.previewRender) {
options.previewRender = function(plainText) {
// Note: "this" refers to the options object
return this.parent.markdown(plainText);
};
}
// Set default options for parsing config
options.parsingConfig = options.parsingConfig || {};
// Merging the insertTexts, with the given options
options.insertTexts = extend({}, insertTexts, options.insertTexts || {});
// Change unique_id to uniqueId for backwards compatibility
if(options.autosave.unique_id != undefined && options.autosave.unique_id != "")
options.autosave.uniqueId = options.autosave.unique_id;
// Update this options
this.options = options;
// Auto render
this.render();
// The codemirror component is only available after rendering
// so, the setter for the initialValue can only run after
// the element has been rendered
if(options.initialValue) {
this.value(options.initialValue);
}
}
/**
* Default toolbar elements.
*/
SimpleMDE.toolbar = ["bold", "italic", "heading", "|", "quote", "unordered-list", "ordered-list", "|", "link", "image", "|", "preview", "side-by-side", "fullscreen", "guide"];
/**
* Default markdown render.
*/
SimpleMDE.prototype.markdown = function(text) {
if(marked) {
// Initialize
var markedOptions = {};
// Update options
if(this.options && this.options.renderingConfig && this.options.renderingConfig.singleLineBreaks !== false) {
markedOptions.breaks = true;
}
if(this.options && this.options.renderingConfig && this.options.renderingConfig.codeSyntaxHighlighting === true && window.hljs) {
markedOptions.highlight = function(code) {
return window.hljs.highlightAuto(code).value;
};
}
// Set options
marked.setOptions(markedOptions);
// Return
return marked(text);
}
};
/**
* Render editor to the given element.
*/
SimpleMDE.prototype.render = function(el) {
if(!el) {
el = this.element || document.getElementsByTagName("textarea")[0];
}
if(this._rendered && this._rendered === el) {
// Already rendered.
return;
}
this.element = el;
var options = this.options;
var self = this;
var keyMaps = {};
for(var key in shortcuts) {
(function(key) {
keyMaps[fixShortcut(key)] = function() {
shortcuts[key](self);
};
})(key);
}
keyMaps["Enter"] = "newlineAndIndentContinueMarkdownList";
keyMaps["Tab"] = "tabAndIndentMarkdownList";
keyMaps["Shift-Tab"] = "shiftTabAndUnindentMarkdownList";
keyMaps["F11"] = function() {
toggleFullScreen(self);
};
keyMaps["F9"] = function() {
toggleSideBySide(self);
};
keyMaps["Esc"] = function(cm) {
if(cm.getOption("fullScreen")) toggleFullScreen(self);
};
var mode, backdrop;
if(options.spellChecker !== false) {
mode = "spell-checker";
backdrop = options.parsingConfig;
backdrop.name = "gfm";
backdrop.gitHubSpice = false;
} else {
mode = options.parsingConfig;
mode.name = "gfm";
mode.gitHubSpice = false;
}
this.codemirror = CodeMirror.fromTextArea(el, {
mode: mode,
backdrop: backdrop,
theme: "paper",
tabSize: (options.tabSize != undefined) ? options.tabSize : 2,
indentUnit: (options.tabSize != undefined) ? options.tabSize : 2,
indentWithTabs: (options.indentWithTabs === false) ? false : true,
lineNumbers: false,
autofocus: (options.autofocus === true) ? true : false,
extraKeys: keyMaps,
lineWrapping: (options.lineWrapping === false) ? false : true,
allowDropFileTypes: ["text/plain"]
});
if(options.toolbar !== false) {
this.createToolbar();
}
if(options.status !== false) {
this.createStatusbar();
}
if(options.autosave != undefined && options.autosave.enabled === true) {
this.autosave();
}
this.createSideBySide();
this._rendered = this.element;
};
SimpleMDE.prototype.autosave = function() {
if(localStorage) {
var simplemde = this;
if(this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
console.log("SimpleMDE: You must set a uniqueId to use the autosave feature");
return;
}
if(simplemde.element.form != null && simplemde.element.form != undefined) {
simplemde.element.form.addEventListener("submit", function() {
localStorage.removeItem("smde_" + simplemde.options.autosave.uniqueId);
});
}
if(this.options.autosave.loaded !== true) {
if(typeof localStorage.getItem("smde_" + this.options.autosave.uniqueId) == "string" && localStorage.getItem("smde_" + this.options.autosave.uniqueId) != "")
this.codemirror.setValue(localStorage.getItem("smde_" + this.options.autosave.uniqueId));
this.options.autosave.loaded = true;
}
localStorage.setItem("smde_" + this.options.autosave.uniqueId, simplemde.value());
var el = document.getElementById("autosaved");
if(el != null && el != undefined && el != "") {
var d = new Date();
var hh = d.getHours();
var m = d.getMinutes();
var dd = "am";
var h = hh;
if(h >= 12) {
h = hh - 12;
dd = "pm";
}
if(h == 0) {
h = 12;
}
m = m < 10 ? "0" + m : m;
el.innerHTML = "Autosaved: " + h + ":" + m + " " + dd;
}
setTimeout(function() {
simplemde.autosave();
}, this.options.autosave.delay || 10000);
} else {
console.log("SimpleMDE: localStorage not available, cannot autosave");
}
};
SimpleMDE.prototype.clearAutosavedValue = function() {
if(localStorage) {
if(this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
console.log("SimpleMDE: You must set a uniqueId to use the autosave feature");
return;
}
localStorage.removeItem("smde_" + this.options.autosave.uniqueId);
} else {
console.log("SimpleMDE: localStorage not available, cannot autosave");
}
};
SimpleMDE.prototype.createSideBySide = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.nextSibling;
if(!preview || !/editor-preview-side/.test(preview.className)) {
preview = document.createElement("div");
preview.className = "editor-preview-side";
wrapper.parentNode.insertBefore(preview, wrapper.nextSibling);
}
// Syncs scroll editor -> preview
var cScroll = false;
var pScroll = false;
cm.on("scroll", function(v) {
if(cScroll) {
cScroll = false;
return;
}
pScroll = true;
var height = v.getScrollInfo().height - v.getScrollInfo().clientHeight;
var ratio = parseFloat(v.getScrollInfo().top) / height;
var move = (preview.scrollHeight - preview.clientHeight) * ratio;
preview.scrollTop = move;
});
// Syncs scroll preview -> editor
preview.onscroll = function() {
if(pScroll) {
pScroll = false;
return;
}
cScroll = true;
var height = preview.scrollHeight - preview.clientHeight;
var ratio = parseFloat(preview.scrollTop) / height;
var move = (cm.getScrollInfo().height - cm.getScrollInfo().clientHeight) * ratio;
cm.scrollTo(0, move);
};
return true;
};
SimpleMDE.prototype.createToolbar = function(items) {
items = items || this.options.toolbar;
if(!items || items.length === 0) {
return;
}
var i;
for(i = 0; i < items.length; i++) {
if(toolbarBuiltInButtons[items[i]] != undefined) {
items[i] = toolbarBuiltInButtons[items[i]];
}
}
var bar = document.createElement("div");
bar.className = "editor-toolbar";
var self = this;
var toolbar_data = {};
self.toolbar = items;
for(i = 0; i < items.length; i++) {
if(items[i].name == "guide" && self.options.toolbarGuideIcon === false)
continue;
if(self.options.hideIcons && self.options.hideIcons.indexOf(items[i].name) != -1)
continue;
// Fullscreen does not work well on mobile devices (even tablets)
// In the future, hopefully this can be resolved
if((items[i].name == "fullscreen" || items[i].name == "side-by-side") && isMobile())
continue;
(function(item) {
var el;
if(item === "|") {
el = createSep();
} else {
el = createIcon(item, self.options.toolbarTips);
}
// bind events, special for info
if(item.action) {
if(typeof item.action === "function") {
el.onclick = function() {
item.action(self);
};
} else if(typeof item.action === "string") {
el.href = item.action;
el.target = "_blank";
}
}
toolbar_data[item.name || item] = el;
bar.appendChild(el);
})(items[i]);
}
self.toolbarElements = toolbar_data;
var cm = this.codemirror;
cm.on("cursorActivity", function() {
var stat = getState(cm);
for(var key in toolbar_data) {
(function(key) {
var el = toolbar_data[key];
if(stat[key]) {
el.className += " active";
} else if(key != "fullscreen" && key != "side-by-side") {
el.className = el.className.replace(/\s*active\s*/g, "");
}
})(key);
}
});
var cmWrapper = cm.getWrapperElement();
cmWrapper.parentNode.insertBefore(bar, cmWrapper);
return bar;
};
SimpleMDE.prototype.createStatusbar = function(status) {
status = status || this.options.status;
var options = this.options;
if(!status || status.length === 0) return;
var bar = document.createElement("div");
bar.className = "editor-statusbar";
var pos, cm = this.codemirror;
for(var i = 0; i < status.length; i++) {
(function(name) {
var el = document.createElement("span");
el.className = name;
if(name === "words") {
el.innerHTML = "0";
cm.on("update", function() {
el.innerHTML = wordCount(cm.getValue());
});
} else if(name === "lines") {
el.innerHTML = "0";
cm.on("update", function() {
el.innerHTML = cm.lineCount();
});
} else if(name === "cursor") {
el.innerHTML = "0:0";
cm.on("cursorActivity", function() {
pos = cm.getCursor();
el.innerHTML = pos.line + ":" + pos.ch;
});
} else if(name === "autosave") {
if(options.autosave != undefined && options.autosave.enabled === true) {
el.setAttribute("id", "autosaved");
}
}
bar.appendChild(el);
})(status[i]);
}
var cmWrapper = this.codemirror.getWrapperElement();
cmWrapper.parentNode.insertBefore(bar, cmWrapper.nextSibling);
return bar;
};
/**
* Get or set the text content.
*/
SimpleMDE.prototype.value = function(val) {
if(val === undefined) {
return this.codemirror.getValue();
} else {
this.codemirror.getDoc().setValue(val);
return this;
}
};
/**
* Bind static methods for exports.
*/
SimpleMDE.toggleBold = toggleBold;
SimpleMDE.toggleItalic = toggleItalic;
SimpleMDE.toggleStrikethrough = toggleStrikethrough;
SimpleMDE.toggleBlockquote = toggleBlockquote;
SimpleMDE.toggleHeadingSmaller = toggleHeadingSmaller;
SimpleMDE.toggleHeadingBigger = toggleHeadingBigger;
SimpleMDE.toggleHeading1 = toggleHeading1;
SimpleMDE.toggleHeading2 = toggleHeading2;
SimpleMDE.toggleHeading3 = toggleHeading3;
SimpleMDE.toggleCodeBlock = toggleCodeBlock;
SimpleMDE.toggleUnorderedList = toggleUnorderedList;
SimpleMDE.toggleOrderedList = toggleOrderedList;
SimpleMDE.drawLink = drawLink;
SimpleMDE.drawImage = drawImage;
SimpleMDE.drawHorizontalRule = drawHorizontalRule;
SimpleMDE.undo = undo;
SimpleMDE.redo = redo;
SimpleMDE.togglePreview = togglePreview;
SimpleMDE.toggleSideBySide = toggleSideBySide;
SimpleMDE.toggleFullScreen = toggleFullScreen;
/**
* Bind instance methods for exports.
*/
SimpleMDE.prototype.toggleBold = function() {
toggleBold(this);
};
SimpleMDE.prototype.toggleItalic = function() {
toggleItalic(this);
};
SimpleMDE.prototype.toggleStrikethrough = function() {
toggleStrikethrough(this);
};
SimpleMDE.prototype.toggleBlockquote = function() {
toggleBlockquote(this);
};
SimpleMDE.prototype.toggleHeadingSmaller = function() {
toggleHeadingSmaller(this);
};
SimpleMDE.prototype.toggleHeadingBigger = function() {
toggleHeadingBigger(this);
};
SimpleMDE.prototype.toggleHeading1 = function() {
toggleHeading1(this);
};
SimpleMDE.prototype.toggleHeading2 = function() {
toggleHeading2(this);
};
SimpleMDE.prototype.toggleHeading3 = function() {
toggleHeading3(this);
};
SimpleMDE.prototype.toggleCodeBlock = function() {
toggleCodeBlock(this);
};
SimpleMDE.prototype.toggleUnorderedList = function() {
toggleUnorderedList(this);
};
SimpleMDE.prototype.toggleOrderedList = function() {
toggleOrderedList(this);
};
SimpleMDE.prototype.drawLink = function() {
drawLink(this);
};
SimpleMDE.prototype.drawImage = function() {
drawImage(this);
};
SimpleMDE.prototype.drawHorizontalRule = function() {
drawHorizontalRule(this);
};
SimpleMDE.prototype.undo = function() {
undo(this);
};
SimpleMDE.prototype.redo = function() {
redo(this);
};
SimpleMDE.prototype.togglePreview = function() {
togglePreview(this);
};
SimpleMDE.prototype.toggleSideBySide = function() {
toggleSideBySide(this);
};
SimpleMDE.prototype.toggleFullScreen = function() {
toggleFullScreen(this);
};
SimpleMDE.prototype.isPreviewActive = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.lastChild;
return /editor-preview-active/.test(preview.className);
};
SimpleMDE.prototype.isSideBySideActive = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.nextSibling;
return /editor-preview-active-side/.test(preview.className);
};
SimpleMDE.prototype.isFullscreenActive = function() {
var cm = this.codemirror;
return cm.getOption("fullScreen");
};
module.exports = SimpleMDE;
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