2318 lines
65 KiB
JavaScript
2318 lines
65 KiB
JavaScript
;
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(function () {
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WMDEditor = function (options) {
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this.options = WMDEditor.util.extend({}, WMDEditor.defaults, options || {});
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wmdBase(this, this.options);
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this.startEditor();
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};
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window.WMDEditor = WMDEditor;
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WMDEditor.defaults = { // {{{
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version: 2.1,
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output_format: "markdown",
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lineLength: 40,
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button_bar: "wmd-button-bar",
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preview: "wmd-preview",
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output: "wmd-output",
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input: "wmd-input",
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// The text that appears on the upper part of the dialog box when
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// entering links.
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imageDialogText: "<p style='margin-top: 0px'><b>Enter the image URL.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://i.imgur.com/1cZl4.jpg</p>",
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linkDialogText: "<p style='margin-top: 0px'><b>Enter the web address.</b></p><p>You can also add a title, which will be displayed as a tool tip.</p><p>Example:<br />http://www.google.com/</p>",
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// The default text that appears in the dialog input box when entering
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// links.
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imageDefaultText: "http://",
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linkDefaultText: "http://",
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imageDirectory: "images/",
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// The link and title for the help button
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helpLink: "/wmd/markdownhelp.html",
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helpHoverTitle: "Markdown Syntax",
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helpTarget: "_blank",
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// Some intervals in ms. These can be adjusted to reduce the control's load.
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previewPollInterval: 500,
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pastePollInterval: 100,
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buttons: "bold italic link blockquote code image ol ul heading hr undo redo help",
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autoFormatting: {
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list: true,
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quote: true,
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code: true,
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},
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modifierKeys: { //replace this with null or false to disable key-combos
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bold: "b",
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italic: "i",
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link: "l",
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quote: "q",
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code: "k",
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image: "g",
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orderedList: "o",
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unorderedList: "u",
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heading: "h",
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horizontalRule: "r",
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redo: "y",
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undo: "z"
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},
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tagFilter: {
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enabled: false,
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allowedTags: /^(<\/?(b|blockquote|code|del|dd|dl|dt|em|h1|h2|h3|i|kbd|li|ol|p|pre|s|sup|sub|strong|strike|ul)>|<(br|hr)\s?\/?>)$/i,
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patternLink: /^(<a\shref=("|')(\#\d+|(https?:\/\/|ftp:\/\/|mailto:)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+)\2(\stitle="[^"<>]+")?\s?>|<\/a>)$/i,
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patternImage: /^(<img\ssrc="https?:(\/\/[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+)"(\swidth="\d{1,3}")?(\sheight="\d{1,3}")?(\salt="[^"<>]*")?(\stitle="[^"<>]*")?\s?\/?>)$/i
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}
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}; // }}}
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WMDEditor.prototype = {
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getPanels: function () {
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return {
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buttonBar: (typeof this.options.button_bar == 'string') ? document.getElementById(this.options.button_bar) : this.options.button_bar,
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preview: (typeof this.options.preview == 'string') ? document.getElementById(this.options.preview) : this.options.preview,
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output: (typeof this.options.output == 'string') ? document.getElementById(this.options.output) : this.options.output,
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input: (typeof this.options.input == 'string') ? document.getElementById(this.options.input) : this.options.input
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};
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},
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startEditor: function () {
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this.panels = this.getPanels();
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this.previewMgr = new PreviewManager(this);
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edit = new this.editor(this.previewMgr.refresh);
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this.previewMgr.refresh(true);
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}
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};
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var util = { // {{{
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// Returns true if the DOM element is visible, false if it's hidden.
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// Checks if display is anything other than none.
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isVisible: function (elem) {
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// shamelessly copied from jQuery
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return elem.offsetWidth > 0 || elem.offsetHeight > 0;
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},
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// Adds a listener callback to a DOM element which is fired on a specified
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// event.
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addEvent: function (elem, event, listener) {
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if (elem.attachEvent) {
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// IE only. The "on" is mandatory.
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elem.attachEvent("on" + event, listener);
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}
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else {
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// Other browsers.
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elem.addEventListener(event, listener, false);
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}
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},
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// Removes a listener callback from a DOM element which is fired on a specified
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// event.
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removeEvent: function (elem, event, listener) {
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if (elem.detachEvent) {
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// IE only. The "on" is mandatory.
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elem.detachEvent("on" + event, listener);
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}
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else {
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// Other browsers.
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elem.removeEventListener(event, listener, false);
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}
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},
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// Converts \r\n and \r to \n.
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fixEolChars: function (text) {
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text = text.replace(/\r\n/g, "\n");
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text = text.replace(/\r/g, "\n");
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return text;
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},
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// Extends a regular expression. Returns a new RegExp
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// using pre + regex + post as the expression.
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// Used in a few functions where we have a base
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// expression and we want to pre- or append some
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// conditions to it (e.g. adding "$" to the end).
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// The flags are unchanged.
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//
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// regex is a RegExp, pre and post are strings.
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extendRegExp: function (regex, pre, post) {
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if (pre === null || pre === undefined) {
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pre = "";
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}
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if (post === null || post === undefined) {
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post = "";
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}
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var pattern = regex.toString();
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var flags = "";
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// Replace the flags with empty space and store them.
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// Technically, this can match incorrect flags like "gmm".
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var result = pattern.match(/\/([gim]*)$/);
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if (result === null) {
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flags = result[0];
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}
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else {
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flags = "";
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}
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// Remove the flags and slash delimiters from the regular expression.
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pattern = pattern.replace(/(^\/|\/[gim]*$)/g, "");
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pattern = pre + pattern + post;
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return new RegExp(pattern, flags);
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},
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// Sets the image for a button passed to the WMD editor.
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// Returns a new element with the image attached.
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// Adds several style properties to the image.
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//
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// XXX-ANAND: Is this used anywhere?
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createImage: function (img) {
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var imgPath = imageDirectory + img;
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var elem = document.createElement("img");
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elem.className = "wmd-button";
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elem.src = imgPath;
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return elem;
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},
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// This simulates a modal dialog box and asks for the URL when you
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// click the hyperlink or image buttons.
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//
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// text: The html for the input box.
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// defaultInputText: The default value that appears in the input box.
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// makeLinkMarkdown: The function which is executed when the prompt is dismissed, either via OK or Cancel
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prompt: function (text, defaultInputText, makeLinkMarkdown, promptType) {
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// These variables need to be declared at this level since they are used
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// in multiple functions.
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var dialog; // The dialog box.
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var background; // The background beind the dialog box.
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var input; // The text box where you enter the hyperlink.
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var titleInput; // The text box for the image's title text
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var newWinCheckbox; //The checkbox to choose if a link should be opened in a new window.
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if (defaultInputText === undefined) {
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defaultInputText = "";
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}
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// Used as a keydown event handler. Esc dismisses the prompt.
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// Key code 27 is ESC.
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var checkEscape = function (key) {
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var code = (key.charCode || key.keyCode);
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if (code === 27) {
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close(true);
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}
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};
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// Dismisses the hyperlink input box.
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// isCancel is true if we don't care about the input text.
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// isCancel is false if we are going to keep the text.
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var close = function (isCancel) {
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util.removeEvent(document.body, "keydown", checkEscape);
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var text = input.value+ (titleInput.value?' "'+titleInput.value+'"':'');
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if (isCancel) {
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text = null;
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}
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else {
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// Fixes common pasting errors.
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text = text.replace('http://http://', 'http://');
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text = text.replace('http://https://', 'https://');
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text = text.replace('http://ftp://', 'ftp://');
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if (promptType=='link' && newWinCheckbox.checked) text = '!'+text;
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}
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dialog.parentNode.removeChild(dialog);
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background.parentNode.removeChild(background);
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makeLinkMarkdown(text);
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return false;
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};
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// Creates the background behind the hyperlink text entry box.
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// Most of this has been moved to CSS but the div creation and
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// browser-specific hacks remain here.
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var createBackground = function () {
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background = document.createElement("div");
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background.className = "wmd-prompt-background";
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style = background.style;
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style.position = "absolute";
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style.top = "0";
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style.zIndex = "10000";
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// Some versions of Konqueror don't support transparent colors
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// so we make the whole window transparent.
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//
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// Is this necessary on modern konqueror browsers?
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if (browser.isKonqueror) {
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style.backgroundColor = "transparent";
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}
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else if (browser.isIE) {
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style.filter = "alpha(opacity=50)";
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}
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else {
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style.opacity = "0.5";
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}
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var pageSize = position.getPageSize();
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style.height = pageSize[1] + "px";
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if (browser.isIE) {
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style.left = document.documentElement.scrollLeft;
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style.width = document.documentElement.clientWidth;
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}
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else {
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style.left = "0";
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style.width = "100%";
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}
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document.body.appendChild(background);
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};
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// Create the text input box form/window.
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var createDialog = function () {
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// The main dialog box.
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dialog = document.createElement("div");
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dialog.className = "wmd-prompt-dialog";
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dialog.style.padding = "10px;";
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dialog.style.position = "fixed";
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dialog.style.width = "400px";
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dialog.style.zIndex = "10001";
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// The dialog text.
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var question = document.createElement("div");
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question.innerHTML = text;
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question.style.padding = "5px";
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dialog.appendChild(question);
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// The web form container for the text box and buttons.
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var form = document.createElement("form");
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form.onsubmit = function () {
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return close(false);
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};
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var style = form.style;
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style.padding = "0";
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style.margin = "0";
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style.cssFloat = "left";
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style.width = "100%";
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style.textAlign = "center";
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style.position = "relative";
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dialog.appendChild(form);
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var label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.width = "80%";
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style.marginLeft = style.marginRight = "auto";
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style.textAlign = "left";
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form.appendChild(label);
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label.appendChild(document.createTextNode(promptType+" URL:"));
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// The input text box
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input = document.createElement("input");
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input.type = "text";
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input.value = defaultInputText;
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style = input.style;
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style.display = "block";
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style.width = "100%";
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style.marginLeft = style.marginRight = "auto";
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label.appendChild(input);
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label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.width = "80%";
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style.marginLeft = style.marginRight = "auto";
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style.textAlign = "left";
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form.appendChild(label);
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label.appendChild(document.createTextNode(promptType+" Title (Hover Text):"));
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// The input text box
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titleInput = document.createElement("input");
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titleInput.type = "text";
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style = titleInput.style;
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style.display = "block";
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style.width = "100%";
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style.marginLeft = style.marginRight = "auto";
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label.appendChild(titleInput);
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if (promptType=='link') {
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label = document.createElement("label");
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style = label.style;
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style.display = "block";
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style.textAlign = "center";
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form.appendChild(label);
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newWinCheckbox = document.createElement("input");
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newWinCheckbox.type = 'checkbox';
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newWinCheckbox.value = '!';
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label.appendChild(newWinCheckbox);
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label.appendChild(document.createTextNode(" Have this link open in a new window"));
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}
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// The ok button
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var okButton = document.createElement("input");
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okButton.type = "button";
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okButton.onclick = function () {
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return close(false);
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};
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okButton.value = "OK";
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style = okButton.style;
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style.margin = "10px";
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style.display = "inline";
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style.width = "7em";
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// The cancel button
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var cancelButton = document.createElement("input");
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cancelButton.type = "button";
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cancelButton.onclick = function () {
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return close(true);
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};
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cancelButton.value = "Cancel";
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style = cancelButton.style;
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style.margin = "10px";
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style.display = "inline";
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style.width = "7em";
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// The order of these buttons is different on macs.
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if (/mac/.test(nav.platform.toLowerCase())) {
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form.appendChild(cancelButton);
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form.appendChild(okButton);
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}
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else {
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form.appendChild(okButton);
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form.appendChild(cancelButton);
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}
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util.addEvent(document.body, "keydown", checkEscape);
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dialog.style.top = "50%";
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dialog.style.left = "50%";
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dialog.style.display = "block";
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if (browser.isIE_5or6) {
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dialog.style.position = "absolute";
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dialog.style.top = document.documentElement.scrollTop + 200 + "px";
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dialog.style.left = "50%";
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}
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document.body.appendChild(dialog);
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// This has to be done AFTER adding the dialog to the form if you
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// want it to be centered.
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dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
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dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
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};
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createBackground();
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// Why is this in a zero-length timeout?
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// Is it working around a browser bug?
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window.setTimeout(function () {
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createDialog();
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var defTextLen = defaultInputText.length;
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if (input.selectionStart !== undefined) {
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input.selectionStart = 0;
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input.selectionEnd = defTextLen;
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}
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else if (input.createTextRange) {
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var range = input.createTextRange();
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range.collapse(false);
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range.moveStart("character", -defTextLen);
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range.moveEnd("character", defTextLen);
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range.select();
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}
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input.focus();
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}, 0);
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},
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extend: function () {
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function _update(a, b) {
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for (var k in b) if (b.hasOwnProperty(k)){
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if (typeof a[k] === 'object' && typeof b[k] === 'object') _update(a[k], b[k]); //if property is an object or array, merge the contents instead of overwriting
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else a[k] = b[k];
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}
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return a;
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}
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var d = {};
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for (var i = 0; i < arguments.length; i++) {
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_update(d, arguments[i]);
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}
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return d;
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}
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}; // }}}
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var position = { // {{{
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// UNFINISHED
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// The assignment in the while loop makes jslint cranky.
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// I'll change it to a better loop later.
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getTop: function (elem, isInner) {
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var result = elem.offsetTop;
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if (!isInner) {
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while (elem = elem.offsetParent) {
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result += elem.offsetTop;
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}
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}
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return result;
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},
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getHeight: function (elem) {
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return elem.offsetHeight || elem.scrollHeight;
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},
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getWidth: function (elem) {
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return elem.offsetWidth || elem.scrollWidth;
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},
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getPageSize: function () {
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var scrollWidth, scrollHeight;
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var innerWidth, innerHeight;
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// It's not very clear which blocks work with which browsers.
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if (self.innerHeight && self.scrollMaxY) {
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scrollWidth = document.body.scrollWidth;
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scrollHeight = self.innerHeight + self.scrollMaxY;
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}
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else if (document.body.scrollHeight > document.body.offsetHeight) {
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scrollWidth = document.body.scrollWidth;
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scrollHeight = document.body.scrollHeight;
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}
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else {
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scrollWidth = document.body.offsetWidth;
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scrollHeight = document.body.offsetHeight;
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}
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if (self.innerHeight) {
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// Non-IE browser
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innerWidth = self.innerWidth;
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innerHeight = self.innerHeight;
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}
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else if (document.documentElement && document.documentElement.clientHeight) {
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// Some versions of IE (IE 6 w/ a DOCTYPE declaration)
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innerWidth = document.documentElement.clientWidth;
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innerHeight = document.documentElement.clientHeight;
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}
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else if (document.body) {
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// Other versions of IE
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innerWidth = document.body.clientWidth;
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innerHeight = document.body.clientHeight;
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}
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var maxWidth = Math.max(scrollWidth, innerWidth);
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var maxHeight = Math.max(scrollHeight, innerHeight);
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return [maxWidth, maxHeight, innerWidth, innerHeight];
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}
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}; // }}}
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// The input textarea state/contents.
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// This is used to implement undo/redo by the undo manager.
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|
var TextareaState = function (textarea, wmd) { // {{{
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// Aliases
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var stateObj = this;
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var inputArea = textarea;
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this.init = function () {
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if (!util.isVisible(inputArea)) {
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return;
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}
|
|
|
|
this.setInputAreaSelectionStartEnd();
|
|
this.scrollTop = inputArea.scrollTop;
|
|
if (!this.text && inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
this.text = inputArea.value;
|
|
}
|
|
|
|
};
|
|
|
|
// Sets the selected text in the input box after we've performed an
|
|
// operation.
|
|
this.setInputAreaSelection = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
if (inputArea.selectionStart !== undefined && !browser.isOpera) {
|
|
|
|
inputArea.focus();
|
|
inputArea.selectionStart = stateObj.start;
|
|
inputArea.selectionEnd = stateObj.end;
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
}
|
|
else if (document.selection) {
|
|
|
|
if (typeof(document.activeElement)!="unknown" && document.activeElement && document.activeElement !== inputArea) {
|
|
return;
|
|
}
|
|
|
|
inputArea.focus();
|
|
var range = inputArea.createTextRange();
|
|
range.moveStart("character", -inputArea.value.length);
|
|
range.moveEnd("character", -inputArea.value.length);
|
|
range.moveEnd("character", stateObj.end);
|
|
range.moveStart("character", stateObj.start);
|
|
range.select();
|
|
}
|
|
};
|
|
|
|
this.setInputAreaSelectionStartEnd = function () {
|
|
|
|
if (inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
|
|
stateObj.start = inputArea.selectionStart;
|
|
stateObj.end = inputArea.selectionEnd;
|
|
}
|
|
else if (document.selection) {
|
|
|
|
stateObj.text = util.fixEolChars(inputArea.value);
|
|
|
|
// IE loses the selection in the textarea when buttons are
|
|
// clicked. On IE we cache the selection and set a flag
|
|
// which we check for here.
|
|
var range;
|
|
if (wmd.ieRetardedClick && wmd.ieCachedRange) {
|
|
range = wmd.ieCachedRange;
|
|
wmd.ieRetardedClick = false;
|
|
}
|
|
else {
|
|
range = document.selection.createRange();
|
|
}
|
|
|
|
var fixedRange = util.fixEolChars(range.text);
|
|
var marker = "\x07";
|
|
var markedRange = marker + fixedRange + marker;
|
|
range.text = markedRange;
|
|
var inputText = util.fixEolChars(inputArea.value);
|
|
|
|
range.moveStart("character", -markedRange.length);
|
|
range.text = fixedRange;
|
|
|
|
stateObj.start = inputText.indexOf(marker);
|
|
stateObj.end = inputText.lastIndexOf(marker) - marker.length;
|
|
|
|
var len = stateObj.text.length - util.fixEolChars(inputArea.value).length;
|
|
|
|
if (len) {
|
|
range.moveStart("character", -fixedRange.length);
|
|
while (len--) {
|
|
fixedRange += "\n";
|
|
stateObj.end += 1;
|
|
}
|
|
range.text = fixedRange;
|
|
}
|
|
|
|
this.setInputAreaSelection();
|
|
}
|
|
};
|
|
|
|
// Restore this state into the input area.
|
|
this.restore = function () {
|
|
|
|
if (stateObj.text != undefined && stateObj.text != inputArea.value) {
|
|
inputArea.value = stateObj.text;
|
|
}
|
|
this.setInputAreaSelection();
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
};
|
|
|
|
// Gets a collection of HTML chunks from the inptut textarea.
|
|
this.getChunks = function () {
|
|
|
|
var chunk = new Chunks();
|
|
|
|
chunk.before = util.fixEolChars(stateObj.text.substring(0, stateObj.start));
|
|
chunk.startTag = "";
|
|
chunk.selection = util.fixEolChars(stateObj.text.substring(stateObj.start, stateObj.end));
|
|
chunk.endTag = "";
|
|
chunk.after = util.fixEolChars(stateObj.text.substring(stateObj.end));
|
|
chunk.scrollTop = stateObj.scrollTop;
|
|
|
|
return chunk;
|
|
};
|
|
|
|
// Sets the TextareaState properties given a chunk of markdown.
|
|
this.setChunks = function (chunk) {
|
|
|
|
chunk.before = chunk.before + chunk.startTag;
|
|
chunk.after = chunk.endTag + chunk.after;
|
|
|
|
if (browser.isOpera) {
|
|
chunk.before = chunk.before.replace(/\n/g, "\r\n");
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\r\n");
|
|
chunk.after = chunk.after.replace(/\n/g, "\r\n");
|
|
}
|
|
|
|
this.start = chunk.before.length;
|
|
this.end = chunk.before.length + chunk.selection.length;
|
|
this.text = chunk.before + chunk.selection + chunk.after;
|
|
this.scrollTop = chunk.scrollTop;
|
|
};
|
|
|
|
this.init();
|
|
}; // }}}
|
|
// Chunks {{{
|
|
// before: contains all the text in the input box BEFORE the selection.
|
|
// after: contains all the text in the input box AFTER the selection.
|
|
var Chunks = function () {};
|
|
|
|
// startRegex: a regular expression to find the start tag
|
|
// endRegex: a regular expresssion to find the end tag
|
|
Chunks.prototype.findTags = function (startRegex, endRegex) {
|
|
|
|
var chunkObj = this;
|
|
var regex;
|
|
|
|
if (startRegex) {
|
|
|
|
regex = util.extendRegExp(startRegex, "", "$");
|
|
|
|
this.before = this.before.replace(regex, function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(startRegex, "^", "");
|
|
|
|
this.selection = this.selection.replace(regex, function (match) {
|
|
chunkObj.startTag = chunkObj.startTag + match;
|
|
return "";
|
|
});
|
|
}
|
|
|
|
if (endRegex) {
|
|
|
|
regex = util.extendRegExp(endRegex, "", "$");
|
|
|
|
this.selection = this.selection.replace(regex, function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
|
|
regex = util.extendRegExp(endRegex, "^", "");
|
|
|
|
this.after = this.after.replace(regex, function (match) {
|
|
chunkObj.endTag = match + chunkObj.endTag;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
// If remove is false, the whitespace is transferred
|
|
// to the before/after regions.
|
|
//
|
|
// If remove is true, the whitespace disappears.
|
|
Chunks.prototype.trimWhitespace = function (remove) {
|
|
|
|
this.selection = this.selection.replace(/^(\s*)/, "");
|
|
|
|
if (!remove) {
|
|
this.before += re.$1;
|
|
}
|
|
|
|
this.selection = this.selection.replace(/(\s*)$/, "");
|
|
|
|
if (!remove) {
|
|
this.after = re.$1 + this.after;
|
|
}
|
|
};
|
|
|
|
|
|
Chunks.prototype.addBlankLines = function (nLinesBefore, nLinesAfter, findExtraNewlines) {
|
|
|
|
if (nLinesBefore === undefined) {
|
|
nLinesBefore = 1;
|
|
}
|
|
|
|
if (nLinesAfter === undefined) {
|
|
nLinesAfter = 1;
|
|
}
|
|
|
|
nLinesBefore++;
|
|
nLinesAfter++;
|
|
|
|
var regexText;
|
|
var replacementText;
|
|
|
|
// New bug discovered in Chrome, which appears to be related to use of RegExp.$1
|
|
// Hack it to hold the match results. Sucks because we're double matching...
|
|
var match = /(^\n*)/.exec(this.selection);
|
|
|
|
this.selection = this.selection.replace(/(^\n*)/, "");
|
|
this.startTag = this.startTag + (match ? match[1] : "");
|
|
match = /(\n*$)/.exec(this.selection);
|
|
this.selection = this.selection.replace(/(\n*$)/, "");
|
|
this.endTag = this.endTag + (match ? match[1] : "");
|
|
match = /(^\n*)/.exec(this.startTag);
|
|
this.startTag = this.startTag.replace(/(^\n*)/, "");
|
|
this.before = this.before + (match ? match[1] : "");
|
|
match = /(\n*$)/.exec(this.endTag);
|
|
this.endTag = this.endTag.replace(/(\n*$)/, "");
|
|
this.after = this.after + (match ? match[1] : "");
|
|
|
|
if (this.before) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesBefore--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
|
|
}
|
|
|
|
if (this.after) {
|
|
|
|
regexText = replacementText = "";
|
|
|
|
while (nLinesAfter--) {
|
|
regexText += "\\n?";
|
|
replacementText += "\n";
|
|
}
|
|
if (findExtraNewlines) {
|
|
regexText = "\\n*";
|
|
}
|
|
|
|
this.after = this.after.replace(new re(regexText, ""), replacementText);
|
|
}
|
|
};
|
|
// }}} - END CHUNKS
|
|
// Watches the input textarea, polling at an interval and runs
|
|
// a callback function if anything has changed.
|
|
var InputPoller = function (textarea, callback, interval) { // {{{
|
|
var pollerObj = this;
|
|
var inputArea = textarea;
|
|
|
|
// Stored start, end and text. Used to see if there are changes to the input.
|
|
var lastStart;
|
|
var lastEnd;
|
|
var markdown;
|
|
|
|
var killHandle; // Used to cancel monitoring on destruction.
|
|
// Checks to see if anything has changed in the textarea.
|
|
// If so, it runs the callback.
|
|
this.tick = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
// Update the selection start and end, text.
|
|
if (inputArea.selectionStart || inputArea.selectionStart === 0) {
|
|
var start = inputArea.selectionStart;
|
|
var end = inputArea.selectionEnd;
|
|
if (start != lastStart || end != lastEnd) {
|
|
lastStart = start;
|
|
lastEnd = end;
|
|
|
|
if (markdown != inputArea.value) {
|
|
markdown = inputArea.value;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
|
|
var doTickCallback = function () {
|
|
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
|
|
// If anything has changed, call the function.
|
|
if (pollerObj.tick()) {
|
|
callback();
|
|
}
|
|
};
|
|
|
|
// Set how often we poll the textarea for changes.
|
|
var assignInterval = function () {
|
|
killHandle = window.setInterval(doTickCallback, interval);
|
|
};
|
|
|
|
this.destroy = function () {
|
|
window.clearInterval(killHandle);
|
|
};
|
|
|
|
assignInterval();
|
|
}; // }}}
|
|
var PreviewManager = function (wmd) { // {{{
|
|
var managerObj = this;
|
|
var converter;
|
|
var poller;
|
|
var timeout;
|
|
var elapsedTime;
|
|
var oldInputText;
|
|
var htmlOut;
|
|
var maxDelay = 3000;
|
|
var startType = "delayed"; // The other legal value is "manual"
|
|
// Adds event listeners to elements and creates the input poller.
|
|
var setupEvents = function (inputElem, listener) {
|
|
|
|
util.addEvent(inputElem, "input", listener);
|
|
inputElem.onpaste = listener;
|
|
inputElem.ondrop = listener;
|
|
|
|
util.addEvent(inputElem, "keypress", listener);
|
|
util.addEvent(inputElem, "keydown", listener);
|
|
// previewPollInterval is set at the top of this file.
|
|
poller = new InputPoller(wmd.panels.input, listener, wmd.options.previewPollInterval);
|
|
};
|
|
|
|
var getDocScrollTop = function () {
|
|
|
|
var result = 0;
|
|
|
|
if (window.innerHeight) {
|
|
result = window.pageYOffset;
|
|
}
|
|
else if (document.documentElement && document.documentElement.scrollTop) {
|
|
result = document.documentElement.scrollTop;
|
|
}
|
|
else if (document.body) {
|
|
result = document.body.scrollTop;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
var makePreviewHtml = function () {
|
|
|
|
// If there are no registered preview and output panels
|
|
// there is nothing to do.
|
|
if (!wmd.panels.preview && !wmd.panels.output) {
|
|
return;
|
|
}
|
|
|
|
var text = wmd.panels.input.value;
|
|
if (text && text == oldInputText) {
|
|
return; // Input text hasn't changed.
|
|
}
|
|
else {
|
|
oldInputText = text;
|
|
}
|
|
|
|
var prevTime = new Date().getTime();
|
|
|
|
if (!converter && wmd.showdown) {
|
|
converter = new wmd.showdown.converter();
|
|
}
|
|
|
|
if (converter) {
|
|
text = converter.makeHtml(text);
|
|
}
|
|
|
|
// Calculate the processing time of the HTML creation.
|
|
// It's used as the delay time in the event listener.
|
|
var currTime = new Date().getTime();
|
|
elapsedTime = currTime - prevTime;
|
|
|
|
pushPreviewHtml(text);
|
|
htmlOut = text;
|
|
};
|
|
|
|
// setTimeout is already used. Used as an event listener.
|
|
var applyTimeout = function () {
|
|
|
|
if (timeout) {
|
|
window.clearTimeout(timeout);
|
|
timeout = undefined;
|
|
}
|
|
|
|
if (startType !== "manual") {
|
|
|
|
var delay = 0;
|
|
|
|
if (startType === "delayed") {
|
|
delay = elapsedTime;
|
|
}
|
|
|
|
if (delay > maxDelay) {
|
|
delay = maxDelay;
|
|
}
|
|
timeout = window.setTimeout(makePreviewHtml, delay);
|
|
}
|
|
};
|
|
|
|
var getScaleFactor = function (panel) {
|
|
if (panel.scrollHeight <= panel.clientHeight) {
|
|
return 1;
|
|
}
|
|
return panel.scrollTop / (panel.scrollHeight - panel.clientHeight);
|
|
};
|
|
|
|
var setPanelScrollTops = function () {
|
|
|
|
if (wmd.panels.preview) {
|
|
wmd.panels.preview.scrollTop = (wmd.panels.preview.scrollHeight - wmd.panels.preview.clientHeight) * getScaleFactor(wmd.panels.preview);;
|
|
}
|
|
|
|
if (wmd.panels.output) {
|
|
wmd.panels.output.scrollTop = (wmd.panels.output.scrollHeight - wmd.panels.output.clientHeight) * getScaleFactor(wmd.panels.output);;
|
|
}
|
|
};
|
|
|
|
this.refresh = function (requiresRefresh) {
|
|
|
|
if (requiresRefresh) {
|
|
oldInputText = "";
|
|
makePreviewHtml();
|
|
}
|
|
else {
|
|
applyTimeout();
|
|
}
|
|
};
|
|
|
|
this.processingTime = function () {
|
|
return elapsedTime;
|
|
};
|
|
|
|
// The output HTML
|
|
this.output = function () {
|
|
return htmlOut;
|
|
};
|
|
|
|
// The mode can be "manual" or "delayed"
|
|
this.setUpdateMode = function (mode) {
|
|
startType = mode;
|
|
managerObj.refresh();
|
|
};
|
|
|
|
var isFirstTimeFilled = true;
|
|
|
|
var pushPreviewHtml = function (text) {
|
|
|
|
var emptyTop = position.getTop(wmd.panels.input) - getDocScrollTop();
|
|
|
|
// Send the encoded HTML to the output textarea/div.
|
|
if (wmd.panels.output) {
|
|
// The value property is only defined if the output is a textarea.
|
|
if (wmd.panels.output.value !== undefined) {
|
|
wmd.panels.output.value = text;
|
|
}
|
|
// Otherwise we are just replacing the text in a div.
|
|
// Send the HTML wrapped in <pre><code>
|
|
else {
|
|
var newText = text.replace(/&/g, "&");
|
|
newText = newText.replace(/</g, "<");
|
|
wmd.panels.output.innerHTML = "<pre><code>" + newText + "</code></pre>";
|
|
}
|
|
}
|
|
|
|
if (wmd.panels.preview) {
|
|
// original WMD code allowed javascript injection, like this:
|
|
// <img src="http://www.google.com/intl/en_ALL/images/srpr/logo1w.png" onload="alert('haha');"/>
|
|
// now, we first ensure elements (and attributes of IMG and A elements) are in a whitelist
|
|
// and if not in whitelist, replace with blanks in preview to prevent XSS attacks
|
|
// when editing malicious markdown
|
|
// code courtesy of https://github.com/polestarsoft/wmd/commit/e7a09c9170ea23e7e806425f46d7423af2a74641
|
|
if (wmd.options.tagFilter.enabled) {
|
|
text = text.replace(/<[^<>]*>?/gi, function (tag) {
|
|
return (tag.match(wmd.options.tagFilter.allowedTags) || tag.match(wmd.options.tagFilter.patternLink) || tag.match(wmd.options.tagFilter.patternImage)) ? tag : "";
|
|
});
|
|
}
|
|
wmd.panels.preview.innerHTML = text;
|
|
}
|
|
|
|
setPanelScrollTops();
|
|
|
|
if (isFirstTimeFilled) {
|
|
isFirstTimeFilled = false;
|
|
return;
|
|
}
|
|
|
|
var fullTop = position.getTop(wmd.panels.input) - getDocScrollTop();
|
|
|
|
if (browser.isIE) {
|
|
window.setTimeout(function () {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}, 0);
|
|
}
|
|
else {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}
|
|
};
|
|
|
|
var init = function () {
|
|
|
|
setupEvents(wmd.panels.input, applyTimeout);
|
|
makePreviewHtml();
|
|
|
|
if (wmd.panels.preview) {
|
|
wmd.panels.preview.scrollTop = 0;
|
|
}
|
|
if (wmd.panels.output) {
|
|
wmd.panels.output.scrollTop = 0;
|
|
}
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (poller) {
|
|
poller.destroy();
|
|
}
|
|
};
|
|
|
|
init();
|
|
}; // }}}
|
|
// Handles pushing and popping TextareaStates for undo/redo commands.
|
|
// I should rename the stack variables to list.
|
|
var UndoManager = function (wmd, textarea, pastePollInterval, callback) { // {{{
|
|
var undoObj = this;
|
|
var undoStack = []; // A stack of undo states
|
|
var stackPtr = 0; // The index of the current state
|
|
var mode = "none";
|
|
var lastState; // The last state
|
|
var poller;
|
|
var timer; // The setTimeout handle for cancelling the timer
|
|
var inputStateObj;
|
|
|
|
// Set the mode for later logic steps.
|
|
var setMode = function (newMode, noSave) {
|
|
|
|
if (mode != newMode) {
|
|
mode = newMode;
|
|
if (!noSave) {
|
|
saveState();
|
|
}
|
|
}
|
|
|
|
if (!browser.isIE || mode != "moving") {
|
|
timer = window.setTimeout(refreshState, 1);
|
|
}
|
|
else {
|
|
inputStateObj = null;
|
|
}
|
|
};
|
|
|
|
var refreshState = function () {
|
|
inputStateObj = new TextareaState(textarea, wmd);
|
|
poller.tick();
|
|
timer = undefined;
|
|
};
|
|
|
|
this.setCommandMode = function () {
|
|
mode = "command";
|
|
saveState();
|
|
timer = window.setTimeout(refreshState, 0);
|
|
};
|
|
|
|
this.canUndo = function () {
|
|
return stackPtr > 1;
|
|
};
|
|
|
|
this.canRedo = function () {
|
|
if (undoStack[stackPtr + 1]) {
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Removes the last state and restores it.
|
|
this.undo = function () {
|
|
|
|
if (undoObj.canUndo()) {
|
|
if (lastState) {
|
|
// What about setting state -1 to null or checking for undefined?
|
|
lastState.restore();
|
|
lastState = null;
|
|
}
|
|
else {
|
|
undoStack[stackPtr] = new TextareaState(textarea, wmd);
|
|
undoStack[--stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
textarea.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Redo an action.
|
|
this.redo = function () {
|
|
|
|
if (undoObj.canRedo()) {
|
|
|
|
undoStack[++stackPtr].restore();
|
|
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
}
|
|
|
|
mode = "none";
|
|
textarea.focus();
|
|
refreshState();
|
|
};
|
|
|
|
// Push the input area state to the stack.
|
|
var saveState = function () {
|
|
|
|
var currState = inputStateObj || new TextareaState(textarea, wmd);
|
|
|
|
if (!currState) {
|
|
return false;
|
|
}
|
|
if (mode == "moving") {
|
|
if (!lastState) {
|
|
lastState = currState;
|
|
}
|
|
return;
|
|
}
|
|
if (lastState) {
|
|
if (undoStack[stackPtr - 1].text != lastState.text) {
|
|
undoStack[stackPtr++] = lastState;
|
|
}
|
|
lastState = null;
|
|
}
|
|
undoStack[stackPtr++] = currState;
|
|
undoStack[stackPtr + 1] = null;
|
|
if (callback) {
|
|
callback();
|
|
}
|
|
};
|
|
|
|
var handleCtrlYZ = function (event) {
|
|
|
|
var handled = false;
|
|
|
|
if (event.ctrlKey || event.metaKey) {
|
|
|
|
// IE and Opera do not support charCode.
|
|
var keyCode = event.charCode || event.keyCode;
|
|
var keyCodeChar = String.fromCharCode(keyCode);
|
|
|
|
switch (keyCodeChar) {
|
|
|
|
case "y":
|
|
undoObj.redo();
|
|
handled = true;
|
|
break;
|
|
|
|
case "z":
|
|
if (!event.shiftKey) {
|
|
undoObj.undo();
|
|
}
|
|
else {
|
|
undoObj.redo();
|
|
}
|
|
handled = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (handled) {
|
|
if (event.preventDefault) {
|
|
event.preventDefault();
|
|
}
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
return;
|
|
}
|
|
};
|
|
|
|
// Set the mode depending on what is going on in the input area.
|
|
var handleModeChange = function (event) {
|
|
|
|
if (!event.ctrlKey && !event.metaKey) {
|
|
|
|
var keyCode = event.keyCode;
|
|
|
|
if ((keyCode >= 33 && keyCode <= 40) || (keyCode >= 63232 && keyCode <= 63235)) {
|
|
// 33 - 40: page up/dn and arrow keys
|
|
// 63232 - 63235: page up/dn and arrow keys on safari
|
|
setMode("moving");
|
|
}
|
|
else if (keyCode == 8 || keyCode == 46 || keyCode == 127) {
|
|
// 8: backspace
|
|
// 46: delete
|
|
// 127: delete
|
|
setMode("deleting");
|
|
}
|
|
else if (keyCode == 13) {
|
|
// 13: Enter
|
|
setMode("newlines");
|
|
}
|
|
else if (keyCode == 27) {
|
|
// 27: escape
|
|
setMode("escape");
|
|
}
|
|
else if ((keyCode < 16 || keyCode > 20) && keyCode != 91) {
|
|
// 16-20 are shift, etc.
|
|
// 91: left window key
|
|
// I think this might be a little messed up since there are
|
|
// a lot of nonprinting keys above 20.
|
|
setMode("typing");
|
|
}
|
|
}
|
|
};
|
|
|
|
var setEventHandlers = function () {
|
|
|
|
util.addEvent(textarea, "keypress", function (event) {
|
|
// keyCode 89: y
|
|
// keyCode 90: z
|
|
if ((event.ctrlKey || event.metaKey) && (event.keyCode == 89 || event.keyCode == 90)) {
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
var handlePaste = function () {
|
|
if (browser.isIE || (inputStateObj && inputStateObj.text != textarea.value)) {
|
|
if (timer == undefined) {
|
|
mode = "paste";
|
|
saveState();
|
|
refreshState();
|
|
}
|
|
}
|
|
};
|
|
|
|
poller = new InputPoller(textarea, handlePaste, pastePollInterval);
|
|
|
|
util.addEvent(textarea, "keydown", handleCtrlYZ);
|
|
util.addEvent(textarea, "keydown", handleModeChange);
|
|
|
|
util.addEvent(textarea, "mousedown", function () {
|
|
setMode("moving");
|
|
});
|
|
textarea.onpaste = handlePaste;
|
|
textarea.ondrop = handlePaste;
|
|
};
|
|
|
|
var init = function () {
|
|
setEventHandlers();
|
|
refreshState();
|
|
saveState();
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (poller) {
|
|
poller.destroy();
|
|
}
|
|
};
|
|
|
|
init();
|
|
}; //}}}
|
|
WMDEditor.util = util;
|
|
WMDEditor.position = position;
|
|
WMDEditor.TextareaState = TextareaState;
|
|
WMDEditor.InputPoller = InputPoller;
|
|
WMDEditor.PreviewManager = PreviewManager;
|
|
WMDEditor.UndoManager = UndoManager;
|
|
|
|
// A few handy aliases for readability.
|
|
var doc = window.document;
|
|
var re = window.RegExp;
|
|
var nav = window.navigator;
|
|
|
|
function get_browser() {
|
|
var b = {};
|
|
b.isIE = /msie/.test(nav.userAgent.toLowerCase());
|
|
b.isIE_5or6 = /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase());
|
|
b.isIE_7plus = b.isIE && !b.isIE_5or6;
|
|
b.isOpera = /opera/.test(nav.userAgent.toLowerCase());
|
|
b.isKonqueror = /konqueror/.test(nav.userAgent.toLowerCase());
|
|
return b;
|
|
}
|
|
|
|
// Used to work around some browser bugs where we can't use feature testing.
|
|
var browser = get_browser();
|
|
|
|
var wmdBase = function (wmd, wmd_options) { // {{{
|
|
// Some namespaces.
|
|
//wmd.Util = {};
|
|
//wmd.Position = {};
|
|
wmd.Command = {};
|
|
wmd.Global = {};
|
|
wmd.buttons = {};
|
|
|
|
wmd.showdown = window.Showdown;
|
|
|
|
var util = WMDEditor.util;
|
|
var position = WMDEditor.position;
|
|
var command = wmd.Command;
|
|
|
|
// Internet explorer has problems with CSS sprite buttons that use HTML
|
|
// lists. When you click on the background image "button", IE will
|
|
// select the non-existent link text and discard the selection in the
|
|
// textarea. The solution to this is to cache the textarea selection
|
|
// on the button's mousedown event and set a flag. In the part of the
|
|
// code where we need to grab the selection, we check for the flag
|
|
// and, if it's set, use the cached area instead of querying the
|
|
// textarea.
|
|
//
|
|
// This ONLY affects Internet Explorer (tested on versions 6, 7
|
|
// and 8) and ONLY on button clicks. Keyboard shortcuts work
|
|
// normally since the focus never leaves the textarea.
|
|
wmd.ieCachedRange = null; // cached textarea selection
|
|
wmd.ieRetardedClick = false; // flag
|
|
// I think my understanding of how the buttons and callbacks are stored in the array is incomplete.
|
|
wmd.editor = function (previewRefreshCallback) { // {{{
|
|
if (!previewRefreshCallback) {
|
|
previewRefreshCallback = function () {};
|
|
}
|
|
|
|
var inputBox = wmd.panels.input;
|
|
|
|
var offsetHeight = 0;
|
|
|
|
var editObj = this;
|
|
|
|
var mainDiv;
|
|
var mainSpan;
|
|
|
|
var div; // This name is pretty ambiguous. I should rename this.
|
|
// Used to cancel recurring events from setInterval.
|
|
var creationHandle;
|
|
|
|
var undoMgr; // The undo manager
|
|
// Perform the button's action.
|
|
var doClick = function (button) {
|
|
|
|
inputBox.focus();
|
|
|
|
if (button.textOp) {
|
|
|
|
if (undoMgr) {
|
|
undoMgr.setCommandMode();
|
|
}
|
|
|
|
var state = new TextareaState(wmd.panels.input, wmd);
|
|
|
|
if (!state) {
|
|
return;
|
|
}
|
|
|
|
var chunks = state.getChunks();
|
|
|
|
// Some commands launch a "modal" prompt dialog. Javascript
|
|
// can't really make a modal dialog box and the WMD code
|
|
// will continue to execute while the dialog is displayed.
|
|
// This prevents the dialog pattern I'm used to and means
|
|
// I can't do something like this:
|
|
//
|
|
// var link = CreateLinkDialog();
|
|
// makeMarkdownLink(link);
|
|
//
|
|
// Instead of this straightforward method of handling a
|
|
// dialog I have to pass any code which would execute
|
|
// after the dialog is dismissed (e.g. link creation)
|
|
// in a function parameter.
|
|
//
|
|
// Yes this is awkward and I think it sucks, but there's
|
|
// no real workaround. Only the image and link code
|
|
// create dialogs and require the function pointers.
|
|
var fixupInputArea = function () {
|
|
|
|
inputBox.focus();
|
|
|
|
if (chunks) {
|
|
state.setChunks(chunks);
|
|
}
|
|
|
|
state.restore();
|
|
previewRefreshCallback();
|
|
};
|
|
|
|
var useDefaultText = true;
|
|
var noCleanup = button.textOp(chunks, fixupInputArea, useDefaultText);
|
|
|
|
if (!noCleanup) {
|
|
fixupInputArea();
|
|
}
|
|
|
|
}
|
|
|
|
if (button.execute) {
|
|
button.execute(editObj);
|
|
}
|
|
};
|
|
|
|
var setUndoRedoButtonStates = function () {
|
|
if (undoMgr) {
|
|
if (wmd.buttons["wmd-undo-button"]) setupButton(wmd.buttons["wmd-undo-button"], undoMgr.canUndo());
|
|
if (wmd.buttons["wmd-redo-button"]) setupButton(wmd.buttons["wmd-redo-button"], undoMgr.canRedo());
|
|
}
|
|
};
|
|
|
|
var setupButton = function (button, isEnabled) {
|
|
|
|
if (isEnabled) {
|
|
button.className = button.className.replace(new RegExp("(^|\\s+)disabled(\\s+|$)"), ' ');
|
|
|
|
// IE tries to select the background image "button" text (it's
|
|
// implemented in a list item) so we have to cache the selection
|
|
// on mousedown.
|
|
if (browser.isIE) {
|
|
button.onmousedown = function () {
|
|
wmd.ieRetardedClick = true;
|
|
wmd.ieCachedRange = document.selection.createRange();
|
|
};
|
|
}
|
|
|
|
if (!button.isHelp) {
|
|
button.onclick = function () {
|
|
if (this.onmouseout) {
|
|
this.onmouseout();
|
|
}
|
|
doClick(this);
|
|
return false;
|
|
};
|
|
}
|
|
}
|
|
else {
|
|
button.className += (button.className ? ' ' : '') + 'disabled';
|
|
button.onmouseover = button.onmouseout = button.onclick = function () {};
|
|
}
|
|
};
|
|
|
|
var makeSpritedButtonRow = function () {
|
|
|
|
var buttonBar = (typeof wmd_options.button_bar == 'string') ? document.getElementById(wmd_options.button_bar || "wmd-button-bar") : wmd_options.button_bar;
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
|
|
var buttonRow = document.createElement("ul");
|
|
buttonRow.className = "wmd-button-row";
|
|
buttonRow = buttonBar.appendChild(buttonRow);
|
|
|
|
var xoffset = 0;
|
|
|
|
function createButton(name, title, textOp) {
|
|
var button = document.createElement("li");
|
|
wmd.buttons[name] = button;
|
|
button.className = "wmd-button " + name;
|
|
button.XShift = xoffset + "px";
|
|
xoffset -= 20;
|
|
|
|
if (title) button.title = title;
|
|
|
|
if (textOp) button.textOp = textOp;
|
|
|
|
return button;
|
|
}
|
|
|
|
function addButton(name, title, textOp) {
|
|
var button = createButton(name, title, textOp);
|
|
|
|
setupButton(button, true);
|
|
buttonRow.appendChild(button);
|
|
return button;
|
|
}
|
|
|
|
function addSpacer() {
|
|
var spacer = document.createElement("li");
|
|
spacer.className = "wmd-spacer";
|
|
buttonRow.appendChild(spacer);
|
|
return spacer;
|
|
}
|
|
|
|
// Detection of mac for displaying proper modifier key.
|
|
var modifierKey = (navigator.appVersion.indexOf("Mac")!=-1) ? "Cmd" : "Ctrl";
|
|
|
|
var buttonlist = wmd_options.buttons.split(' ');
|
|
for (var i=0;i<buttonlist.length;i++) {
|
|
switch (buttonlist[i]) {
|
|
case "bold":
|
|
addButton("wmd-bold-button", "Strong <strong> "+modifierKey+"+B", command.doBold);
|
|
break;
|
|
case "italic":
|
|
addButton("wmd-italic-button", "Emphasis <em> "+modifierKey+"+I", command.doItalic);
|
|
break;
|
|
case 'link':
|
|
addButton("wmd-link-button", "Hyperlink <a> "+modifierKey+"+L", function (chunk, postProcessing, useDefaultText) {
|
|
return command.doLinkOrImage(chunk, postProcessing, false);
|
|
});
|
|
break;
|
|
case 'blockquote':
|
|
addButton("wmd-quote-button", "Blockquote <blockquote> "+modifierKey+"+Q", command.doBlockquote);
|
|
break;
|
|
case 'code':
|
|
addButton("wmd-code-button", "Code Sample <pre><code> "+modifierKey+"+K", command.doCode);
|
|
break;
|
|
case 'image':
|
|
addButton("wmd-image-button", "Image <img> "+modifierKey+"+G", function (chunk, postProcessing, useDefaultText) {
|
|
return command.doLinkOrImage(chunk, postProcessing, true);
|
|
});
|
|
break;
|
|
case 'ol':
|
|
addButton("wmd-olist-button", "Numbered List <ol> "+modifierKey+"+O", function (chunk, postProcessing, useDefaultText) {
|
|
command.doList(chunk, postProcessing, true, useDefaultText);
|
|
});
|
|
break;
|
|
case 'ul':
|
|
addButton("wmd-ulist-button", "Bulleted List <ul> "+modifierKey+"+U", function (chunk, postProcessing, useDefaultText) {
|
|
command.doList(chunk, postProcessing, false, useDefaultText);
|
|
});
|
|
break;
|
|
case 'heading':
|
|
addButton("wmd-heading-button", "Heading <h1>/<h2> "+modifierKey+"+H", command.doHeading);
|
|
break;
|
|
case 'hr':
|
|
addButton("wmd-hr-button", "Horizontal Rule <hr> "+modifierKey+"+R", command.doHorizontalRule);
|
|
break;
|
|
case 'undo':
|
|
var undoButton = addButton("wmd-undo-button", "Undo - "+modifierKey+"+Z");
|
|
undoButton.execute = function (manager) {
|
|
manager.undo();
|
|
};
|
|
break;
|
|
case 'redo':
|
|
var redoButton = addButton("wmd-redo-button", "Redo - "+modifierKey+"+Y");
|
|
if (/win/.test(nav.platform.toLowerCase())) {
|
|
redoButton.title = "Redo - "+modifierKey+"+Y";
|
|
}
|
|
else {
|
|
// mac and other non-Windows platforms
|
|
redoButton.title = "Redo - "+modifierKey+"+Shift+Z";
|
|
}
|
|
redoButton.execute = function (manager) {
|
|
manager.redo();
|
|
};
|
|
break;
|
|
case 'help':
|
|
var helpButton = createButton("wmd-help-button");
|
|
helpButton.isHelp = true;
|
|
setupButton(helpButton, true);
|
|
buttonRow.appendChild(helpButton);
|
|
|
|
var helpAnchor = document.createElement("a");
|
|
helpAnchor.href = wmd_options.helpLink;
|
|
helpAnchor.target = wmd_options.helpTarget;
|
|
helpAnchor.title = wmd_options.helpHoverTitle;
|
|
helpButton.appendChild(helpAnchor);
|
|
break;
|
|
case '':
|
|
addSpacer();
|
|
break;
|
|
}
|
|
}
|
|
|
|
setUndoRedoButtonStates();
|
|
};
|
|
|
|
var setupEditor = function () {
|
|
|
|
if (/\?noundo/.test(document.location.href)) {
|
|
wmd.nativeUndo = true;
|
|
}
|
|
|
|
if (!wmd.nativeUndo) {
|
|
undoMgr = new UndoManager(wmd, wmd.panels.input, wmd.options.pastePollInterval, function () {
|
|
previewRefreshCallback();
|
|
setUndoRedoButtonStates();
|
|
});
|
|
}
|
|
|
|
makeSpritedButtonRow();
|
|
|
|
|
|
var keyEvent = "keydown";
|
|
if (browser.isOpera) {
|
|
keyEvent = "keypress";
|
|
}
|
|
|
|
util.addEvent(inputBox, keyEvent, function (key) {
|
|
|
|
// Check to see if we have a button key and, if so execute the callback.
|
|
if (wmd.options.modifierKeys && (key.ctrlKey || key.metaKey)) {
|
|
|
|
var keyCode = key.charCode || key.keyCode;
|
|
var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
|
|
|
|
switch (keyCodeStr) {
|
|
case wmd.options.modifierKeys.bold:
|
|
if (wmd.buttons["wmd-bold-button"]) doClick(wmd.buttons["wmd-bold-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.italic:
|
|
if (wmd.buttons["wmd-italic-button"]) doClick(wmd.buttons["wmd-italic-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.link:
|
|
if (wmd.buttons["wmd-link-button"]) doClick(wmd.buttons["wmd-link-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.quote:
|
|
if (wmd.buttons["wmd-quote-button"]) doClick(wmd.buttons["wmd-quote-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.code:
|
|
if (wmd.buttons["wmd-code-button"]) doClick(wmd.buttons["wmd-code-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.image:
|
|
if (wmd.buttons["wmd-image-button"]) doClick(wmd.buttons["wmd-image-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.orderedList:
|
|
if (wmd.buttons["wmd-olist-button"]) doClick(wmd.buttons["wmd-olist-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.unorderedList:
|
|
if (wmd.buttons["wmd-ulist-button"]) doClick(wmd.buttons["wmd-ulist-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.heading:
|
|
if (wmd.buttons["wmd-heading-button"]) doClick(wmd.buttons["wmd-heading-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.horizontalRule:
|
|
if (wmd.buttons["wmd-hr-button"]) doClick(wmd.buttons["wmd-hr-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.redo:
|
|
if (wmd.buttons["wmd-redo-button"]) doClick(wmd.buttons["wmd-redo-button"]);
|
|
else return;
|
|
break;
|
|
case wmd.options.modifierKeys.undo:
|
|
if (key.shiftKey) {
|
|
if (wmd.buttons["wmd-redo-button"]) doClick(wmd.buttons["wmd-redo-button"]);
|
|
else return;
|
|
} else {
|
|
if (wmd.buttons["wmd-undo-button"]) doClick(wmd.buttons["wmd-undo-button"]);
|
|
else return;
|
|
}
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
|
|
if (key.preventDefault) {
|
|
key.preventDefault();
|
|
}
|
|
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Auto-continue lists, code blocks and block quotes when
|
|
// the enter key is pressed.
|
|
util.addEvent(inputBox, "keyup", function (key) {
|
|
if (!key.shiftKey && !key.ctrlKey && !key.metaKey) {
|
|
var keyCode = key.charCode || key.keyCode;
|
|
// Key code 13 is Enter
|
|
if (keyCode === 13) {
|
|
fakeButton = {};
|
|
fakeButton.textOp = command.doAutoindent;
|
|
doClick(fakeButton);
|
|
}
|
|
}
|
|
});
|
|
|
|
// Disable ESC clearing the input textarea on IE
|
|
if (browser.isIE) {
|
|
util.addEvent(inputBox, "keydown", function (key) {
|
|
var code = key.keyCode;
|
|
// Key code 27 is ESC
|
|
if (code === 27) {
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
|
|
this.undo = function () {
|
|
if (undoMgr) {
|
|
undoMgr.undo();
|
|
}
|
|
};
|
|
|
|
this.redo = function () {
|
|
if (undoMgr) {
|
|
undoMgr.redo();
|
|
}
|
|
};
|
|
|
|
// This is pretty useless. The setupEditor function contents
|
|
// should just be copied here.
|
|
var init = function () {
|
|
setupEditor();
|
|
};
|
|
|
|
this.destroy = function () {
|
|
if (undoMgr) {
|
|
undoMgr.destroy();
|
|
}
|
|
if (div.parentNode) {
|
|
div.parentNode.removeChild(div);
|
|
}
|
|
if (inputBox) {
|
|
inputBox.style.marginTop = "";
|
|
}
|
|
window.clearInterval(creationHandle);
|
|
};
|
|
|
|
init();
|
|
}; // }}}
|
|
// command {{{
|
|
// The markdown symbols - 4 spaces = code, > = blockquote, etc.
|
|
command.prefixes = "(?:\\s{4,}|\\s*>|\\s*-\\s+|\\s*\\d+\\.|=|\\+|-|_|\\*|#|\\s*\\[[^\n]]+\\]:)";
|
|
|
|
// Remove markdown symbols from the chunk selection.
|
|
command.unwrap = function (chunk) {
|
|
var txt = new re("([^\\n])\\n(?!(\\n|" + command.prefixes + "))", "g");
|
|
chunk.selection = chunk.selection.replace(txt, "$1 $2");
|
|
};
|
|
|
|
command.wrap = function (chunk, len) {
|
|
command.unwrap(chunk);
|
|
var regex = new re("(.{1," + len + "})( +|$\\n?)", "gm");
|
|
|
|
chunk.selection = chunk.selection.replace(regex, function (line, marked) {
|
|
if (new re("^" + command.prefixes, "").test(line)) {
|
|
return line;
|
|
}
|
|
return marked + "\n";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/\s+$/, "");
|
|
};
|
|
|
|
command.doBold = function (chunk, postProcessing, useDefaultText) {
|
|
return command.doBorI(chunk, 2, "strong text");
|
|
};
|
|
|
|
command.doItalic = function (chunk, postProcessing, useDefaultText) {
|
|
return command.doBorI(chunk, 1, "emphasized text");
|
|
};
|
|
|
|
// chunk: The selected region that will be enclosed with */**
|
|
// nStars: 1 for italics, 2 for bold
|
|
// insertText: If you just click the button without highlighting text, this gets inserted
|
|
command.doBorI = function (chunk, nStars, insertText) {
|
|
|
|
// Get rid of whitespace and fixup newlines.
|
|
chunk.trimWhitespace();
|
|
chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n");
|
|
|
|
// Look for stars before and after. Is the chunk already marked up?
|
|
chunk.before.search(/(\**$)/);
|
|
var starsBefore = re.$1;
|
|
|
|
chunk.after.search(/(^\**)/);
|
|
var starsAfter = re.$1;
|
|
|
|
var prevStars = Math.min(starsBefore.length, starsAfter.length);
|
|
|
|
// Remove stars if we have to since the button acts as a toggle.
|
|
if ((prevStars >= nStars) && (prevStars != 2 || nStars != 1)) {
|
|
chunk.before = chunk.before.replace(re("[*]{" + nStars + "}$", ""), "");
|
|
chunk.after = chunk.after.replace(re("^[*]{" + nStars + "}", ""), "");
|
|
}
|
|
else if (!chunk.selection && starsAfter) {
|
|
// It's not really clear why this code is necessary. It just moves
|
|
// some arbitrary stuff around.
|
|
chunk.after = chunk.after.replace(/^([*_]*)/, "");
|
|
chunk.before = chunk.before.replace(/(\s?)$/, "");
|
|
var whitespace = re.$1;
|
|
chunk.before = chunk.before + starsAfter + whitespace;
|
|
}
|
|
else {
|
|
|
|
// In most cases, if you don't have any selected text and click the button
|
|
// you'll get a selected, marked up region with the default text inserted.
|
|
if (!chunk.selection && !starsAfter) {
|
|
chunk.selection = insertText;
|
|
}
|
|
|
|
// Add the true markup.
|
|
var markup = nStars <= 1 ? "*" : "**"; // shouldn't the test be = ?
|
|
chunk.before = chunk.before + markup;
|
|
chunk.after = markup + chunk.after;
|
|
}
|
|
|
|
return;
|
|
};
|
|
|
|
command.stripLinkDefs = function (text, defsToAdd) {
|
|
|
|
text = text.replace(/^[ ]{0,3}\[(\d+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|$)/gm, function (totalMatch, id, link, newlines, title) {
|
|
defsToAdd[id] = totalMatch.replace(/\s*$/, "");
|
|
if (newlines) {
|
|
// Strip the title and return that separately.
|
|
defsToAdd[id] = totalMatch.replace(/["(](.+?)[")]$/, "");
|
|
return newlines + title;
|
|
}
|
|
return "";
|
|
});
|
|
|
|
return text;
|
|
};
|
|
|
|
command.addLinkDef = function (chunk, linkDef) {
|
|
|
|
var refNumber = 0; // The current reference number
|
|
var defsToAdd = {}; //
|
|
// Start with a clean slate by removing all previous link definitions.
|
|
chunk.before = command.stripLinkDefs(chunk.before, defsToAdd);
|
|
chunk.selection = command.stripLinkDefs(chunk.selection, defsToAdd);
|
|
chunk.after = command.stripLinkDefs(chunk.after, defsToAdd);
|
|
|
|
var defs = "";
|
|
var regex = /(\[(?:\[[^\]]*\]|[^\[\]])*\][ ]?(?:\n[ ]*)?\[)(\d+)(\])/g;
|
|
|
|
var addDefNumber = function (def) {
|
|
refNumber++;
|
|
def = def.replace(/^[ ]{0,3}\[(\d+)\]:/, " [" + refNumber + "]:");
|
|
defs += "\n" + def;
|
|
};
|
|
|
|
var getLink = function (wholeMatch, link, id, end) {
|
|
|
|
if (defsToAdd[id]) {
|
|
addDefNumber(defsToAdd[id]);
|
|
return link + refNumber + end;
|
|
|
|
}
|
|
return wholeMatch;
|
|
};
|
|
|
|
chunk.before = chunk.before.replace(regex, getLink);
|
|
|
|
if (linkDef) {
|
|
addDefNumber(linkDef);
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(regex, getLink);
|
|
}
|
|
|
|
var refOut = refNumber;
|
|
|
|
chunk.after = chunk.after.replace(regex, getLink);
|
|
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/\n*$/, "");
|
|
}
|
|
if (!chunk.after) {
|
|
chunk.selection = chunk.selection.replace(/\n*$/, "");
|
|
}
|
|
|
|
chunk.after += "\n\n" + defs;
|
|
|
|
return refOut;
|
|
};
|
|
|
|
command.doLinkOrImage = function (chunk, postProcessing, isImage) {
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/\s*!?\[/, /\][ ]?(?:\n[ ]*)?(\[.*?\])?/);
|
|
|
|
if (chunk.endTag.length > 1) {
|
|
|
|
chunk.startTag = chunk.startTag.replace(/!?\[/, "");
|
|
chunk.endTag = "";
|
|
command.addLinkDef(chunk, null);
|
|
|
|
}
|
|
else {
|
|
|
|
if (/\n\n/.test(chunk.selection)) {
|
|
command.addLinkDef(chunk, null);
|
|
return;
|
|
}
|
|
|
|
// The function to be executed when you enter a link and press OK or Cancel.
|
|
// Marks up the link and adds the ref.
|
|
var makeLinkMarkdown = function (link) {
|
|
console.log(link);
|
|
if (link !== null) {
|
|
|
|
chunk.startTag = chunk.endTag = "";
|
|
var linkDef = " [999]: " + link;
|
|
|
|
var num = command.addLinkDef(chunk, linkDef);
|
|
chunk.startTag = isImage ? "![" : "[";
|
|
chunk.endTag = "][" + num + "]";
|
|
|
|
if (!chunk.selection) {
|
|
if (isImage) {
|
|
chunk.selection = "alt text";
|
|
}
|
|
else {
|
|
chunk.selection = "link text";
|
|
}
|
|
}
|
|
}
|
|
postProcessing();
|
|
};
|
|
|
|
if (isImage) {
|
|
util.prompt(wmd_options.imageDialogText, wmd_options.imageDefaultText, makeLinkMarkdown, 'Image');
|
|
}
|
|
else {
|
|
util.prompt(wmd_options.linkDialogText, wmd_options.linkDefaultText, makeLinkMarkdown, 'Link');
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// Moves the cursor to the next line and continues lists, quotes and code.
|
|
command.doAutoindent = function (chunk, postProcessing, useDefaultText) {
|
|
if (!wmd.options.autoFormatting) return;
|
|
|
|
if (wmd.options.autoFormatting.list) chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
|
|
if (wmd.options.autoFormatting.quote) chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
|
|
if (wmd.options.autoFormatting.code) chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
|
|
|
|
useDefaultText = false;
|
|
|
|
if (/(\n|^)[ ]{0,3}([*+-])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doList && wmd.options.autoFormatting.list) {
|
|
command.doList(chunk, postProcessing, false, true);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}(\d+[.])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doList && wmd.options.autoFormatting.list) {
|
|
command.doList(chunk, postProcessing, true, true);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (command.doBlockquote && wmd.options.autoFormatting.quote) {
|
|
command.doBlockquote(chunk, postProcessing, useDefaultText);
|
|
}
|
|
}
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
if (command.doCode && wmd.options.autoFormatting.code) {
|
|
command.doCode(chunk, postProcessing, useDefaultText);
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doBlockquote = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
chunk.selection = chunk.selection.replace(/^(\n*)([^\r]+?)(\n*)$/, function (totalMatch, newlinesBefore, text, newlinesAfter) {
|
|
chunk.before += newlinesBefore;
|
|
chunk.after = newlinesAfter + chunk.after;
|
|
return text;
|
|
});
|
|
|
|
chunk.before = chunk.before.replace(/(>[ \t]*)$/, function (totalMatch, blankLine) {
|
|
chunk.selection = blankLine + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
var defaultText = useDefaultText ? "Blockquote" : "";
|
|
chunk.selection = chunk.selection.replace(/^(\s|>)+$/, "");
|
|
chunk.selection = chunk.selection || defaultText;
|
|
|
|
if (chunk.before) {
|
|
chunk.before = chunk.before.replace(/\n?$/, "\n");
|
|
}
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/^\n?/, "\n");
|
|
}
|
|
|
|
chunk.before = chunk.before.replace(/(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*$)/, function (totalMatch) {
|
|
chunk.startTag = totalMatch;
|
|
return "";
|
|
});
|
|
|
|
chunk.after = chunk.after.replace(/^(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*)/, function (totalMatch) {
|
|
chunk.endTag = totalMatch;
|
|
return "";
|
|
});
|
|
|
|
var replaceBlanksInTags = function (useBracket) {
|
|
|
|
var replacement = useBracket ? "> " : "";
|
|
|
|
if (chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n((>|\s)*)\n$/, function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
if (chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n((>|\s)*)\n/, function (totalMatch, markdown) {
|
|
return "\n" + markdown.replace(/^[ ]{0,3}>?[ \t]*$/gm, replacement) + "\n";
|
|
});
|
|
}
|
|
};
|
|
|
|
if (/^(?![ ]{0,3}>)/m.test(chunk.selection)) {
|
|
command.wrap(chunk, wmd_options.lineLength - 2);
|
|
chunk.selection = chunk.selection.replace(/^/gm, "> ");
|
|
replaceBlanksInTags(true);
|
|
chunk.addBlankLines();
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
|
|
command.unwrap(chunk);
|
|
replaceBlanksInTags(false);
|
|
|
|
if (!/^(\n|^)[ ]{0,3}>/.test(chunk.selection) && chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n{0,2}$/, "\n\n");
|
|
}
|
|
|
|
if (!/(\n|^)[ ]{0,3}>.*$/.test(chunk.selection) && chunk.endTag) {
|
|
chunk.endTag = chunk.endTag.replace(/^\n{0,2}/, "\n\n");
|
|
}
|
|
}
|
|
|
|
if (!/\n/.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^(> *)/, function (wholeMatch, blanks) {
|
|
chunk.startTag += blanks;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
command.doCode = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
var hasTextBefore = /\S[ ]*$/.test(chunk.before);
|
|
var hasTextAfter = /^[ ]*\S/.test(chunk.after);
|
|
|
|
// Use 'four space' markdown if the selection is on its own
|
|
// line or is multiline.
|
|
if ((!hasTextAfter && !hasTextBefore) || /\n/.test(chunk.selection)) {
|
|
|
|
chunk.before = chunk.before.replace(/[ ]{4}$/, function (totalMatch) {
|
|
chunk.selection = totalMatch + chunk.selection;
|
|
return "";
|
|
});
|
|
|
|
var nLinesBefore = 1;
|
|
var nLinesAfter = 1;
|
|
|
|
|
|
if (/\n(\t|[ ]{4,}).*\n$/.test(chunk.before) || chunk.after === "") {
|
|
nLinesBefore = 0;
|
|
}
|
|
if (/^\n(\t|[ ]{4,})/.test(chunk.after)) {
|
|
nLinesAfter = 0; // This needs to happen on line 1
|
|
}
|
|
|
|
chunk.addBlankLines(nLinesBefore, nLinesAfter);
|
|
|
|
if (!chunk.selection) {
|
|
chunk.startTag = " ";
|
|
chunk.selection = useDefaultText ? "enter code here" : "";
|
|
}
|
|
else {
|
|
if (/^[ ]{0,3}\S/m.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^/gm, " ");
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{4}/gm, "");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Use backticks (`) to delimit the code block.
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/`/, /`/);
|
|
|
|
if (!chunk.startTag && !chunk.endTag) {
|
|
chunk.startTag = chunk.endTag = "`";
|
|
if (!chunk.selection) {
|
|
chunk.selection = useDefaultText ? "enter code here" : "";
|
|
}
|
|
}
|
|
else if (chunk.endTag && !chunk.startTag) {
|
|
chunk.before += chunk.endTag;
|
|
chunk.endTag = "";
|
|
}
|
|
else {
|
|
chunk.startTag = chunk.endTag = "";
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doList = function (chunk, postProcessing, isNumberedList, useDefaultText) {
|
|
|
|
// These are identical except at the very beginning and end.
|
|
// Should probably use the regex extension function to make this clearer.
|
|
var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/;
|
|
var nextItemsRegex = /^\n*(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*/;
|
|
|
|
// The default bullet is a dash but others are possible.
|
|
// This has nothing to do with the particular HTML bullet,
|
|
// it's just a markdown bullet.
|
|
var bullet = "-";
|
|
|
|
// The number in a numbered list.
|
|
var num = 1;
|
|
|
|
// Get the item prefix - e.g. " 1. " for a numbered list, " - " for a bulleted list.
|
|
var getItemPrefix = function () {
|
|
var prefix;
|
|
if (isNumberedList) {
|
|
prefix = " " + num + ". ";
|
|
num++;
|
|
}
|
|
else {
|
|
prefix = " " + bullet + " ";
|
|
}
|
|
return prefix;
|
|
};
|
|
|
|
// Fixes the prefixes of the other list items.
|
|
var getPrefixedItem = function (itemText) {
|
|
|
|
// The numbering flag is unset when called by autoindent.
|
|
if (isNumberedList === undefined) {
|
|
isNumberedList = /^\s*\d/.test(itemText);
|
|
}
|
|
|
|
// Renumber/bullet the list element.
|
|
itemText = itemText.replace(/^[ ]{0,3}([*+-]|\d+[.])\s/gm, function (_) {
|
|
return getItemPrefix();
|
|
});
|
|
|
|
return itemText;
|
|
};
|
|
|
|
chunk.findTags(/(\n|^)*[ ]{0,3}([*+-]|\d+[.])\s+/, null);
|
|
|
|
if (chunk.before && !/\n$/.test(chunk.before) && !/^\n/.test(chunk.startTag)) {
|
|
chunk.before += chunk.startTag;
|
|
chunk.startTag = "";
|
|
}
|
|
|
|
if (chunk.startTag) {
|
|
|
|
var hasDigits = /\d+[.]/.test(chunk.startTag);
|
|
chunk.startTag = "";
|
|
chunk.selection = chunk.selection.replace(/\n[ ]{4}/g, "\n");
|
|
command.unwrap(chunk);
|
|
chunk.addBlankLines();
|
|
|
|
if (hasDigits) {
|
|
// Have to renumber the bullet points if this is a numbered list.
|
|
chunk.after = chunk.after.replace(nextItemsRegex, getPrefixedItem);
|
|
}
|
|
if (isNumberedList == hasDigits) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
var nLinesBefore = 1;
|
|
|
|
chunk.before = chunk.before.replace(previousItemsRegex, function (itemText) {
|
|
if (/^\s*([*+-])/.test(itemText)) {
|
|
bullet = re.$1;
|
|
}
|
|
nLinesBefore = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
if (!chunk.selection) {
|
|
chunk.selection = useDefaultText ? "List item" : " ";
|
|
}
|
|
|
|
var prefix = getItemPrefix();
|
|
|
|
var nLinesAfter = 1;
|
|
|
|
chunk.after = chunk.after.replace(nextItemsRegex, function (itemText) {
|
|
nLinesAfter = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
chunk.trimWhitespace(true);
|
|
chunk.addBlankLines(nLinesBefore, nLinesAfter, true);
|
|
chunk.startTag = prefix;
|
|
var spaces = prefix.replace(/./g, " ");
|
|
command.wrap(chunk, wmd_options.lineLength - spaces.length);
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
|
|
|
|
};
|
|
|
|
command.doHeading = function (chunk, postProcessing, useDefaultText) {
|
|
|
|
// Remove leading/trailing whitespace and reduce internal spaces to single spaces.
|
|
chunk.selection = chunk.selection.replace(/\s+/g, " ");
|
|
chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/g, "");
|
|
|
|
// If we clicked the button with no selected text, we just
|
|
// make a level 2 hash header around some default text.
|
|
if (!chunk.selection) {
|
|
chunk.startTag = "## ";
|
|
chunk.selection = "Heading";
|
|
chunk.endTag = " ##";
|
|
return;
|
|
}
|
|
|
|
var headerLevel = 0; // The existing header level of the selected text.
|
|
// Remove any existing hash heading markdown and save the header level.
|
|
chunk.findTags(/#+[ ]*/, /[ ]*#+/);
|
|
if (/#+/.test(chunk.startTag)) {
|
|
headerLevel = re.lastMatch.length;
|
|
}
|
|
chunk.startTag = chunk.endTag = "";
|
|
|
|
// Try to get the current header level by looking for - and = in the line
|
|
// below the selection.
|
|
chunk.findTags(null, /\s?(-+|=+)/);
|
|
if (/=+/.test(chunk.endTag)) {
|
|
headerLevel = 1;
|
|
}
|
|
if (/-+/.test(chunk.endTag)) {
|
|
headerLevel = 2;
|
|
}
|
|
|
|
// Skip to the next line so we can create the header markdown.
|
|
chunk.startTag = chunk.endTag = "";
|
|
chunk.addBlankLines(1, 1);
|
|
|
|
// We make a level 2 header if there is no current header.
|
|
// If there is a header level, we substract one from the header level.
|
|
// If it's already a level 1 header, it's removed.
|
|
var headerLevelToCreate = headerLevel == 0 ? 2 : headerLevel - 1;
|
|
|
|
if (headerLevelToCreate > 0) {
|
|
|
|
// The button only creates level 1 and 2 underline headers.
|
|
// Why not have it iterate over hash header levels? Wouldn't that be easier and cleaner?
|
|
var headerChar = headerLevelToCreate >= 2 ? "-" : "=";
|
|
var len = chunk.selection.length;
|
|
if (len > wmd_options.lineLength) {
|
|
len = wmd_options.lineLength;
|
|
}
|
|
chunk.endTag = "\n";
|
|
while (len--) {
|
|
chunk.endTag += headerChar;
|
|
}
|
|
}
|
|
};
|
|
|
|
command.doHorizontalRule = function (chunk, postProcessing, useDefaultText) {
|
|
chunk.startTag = "----------\n";
|
|
chunk.selection = "";
|
|
chunk.addBlankLines(2, 1, true);
|
|
};
|
|
// }}}
|
|
}; // }}}
|
|
})();
|
|
|
|
// For backward compatibility
|
|
|
|
function setup_wmd(options) {
|
|
return new WMDEditor(options);
|
|
} |