2219 lines
81 KiB
JavaScript
2219 lines
81 KiB
JavaScript
// needs Markdown.Converter.js at the moment
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(function () {
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var util = {},
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position = {},
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ui = {},
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doc = window.document,
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re = window.RegExp,
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nav = window.navigator,
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SETTINGS = { lineLength: 72 },
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// Used to work around some browser bugs where we can't use feature testing.
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uaSniffed = {
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isIE: /msie/.test(nav.userAgent.toLowerCase()),
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isIE_5or6: /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase()),
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isOpera: /opera/.test(nav.userAgent.toLowerCase())
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};
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var defaultsStrings = {
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bold: "Strong <strong> Ctrl+B",
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boldexample: "strong text",
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italic: "Emphasis <em> Ctrl+I",
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italicexample: "emphasized text",
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link: "Hyperlink <a> Ctrl+L",
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linkdescription: "enter link description here",
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linkdialog: "<p><b>Insert Hyperlink</b></p><p>http://example.com/ \"optional title\"</p>",
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quote: "Blockquote <blockquote> Ctrl+Q",
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quoteexample: "Blockquote",
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code: "Code Sample <pre><code> Ctrl+K",
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codeexample: "enter code here",
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image: "Image <img> Ctrl+G",
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imagedescription: "enter image description here",
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imagedialog: "<p><b>Insert Image</b></p><p>http://example.com/images/diagram.jpg \"optional title\"<br><br>Need <a href='http://www.google.com/search?q=free+image+hosting' target='_blank'>free image hosting?</a></p>",
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olist: "Numbered List <ol> Ctrl+O",
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ulist: "Bulleted List <ul> Ctrl+U",
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litem: "List item",
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heading: "Heading <h1>/<h2> Ctrl+H",
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headingexample: "Heading",
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hr: "Horizontal Rule <hr> Ctrl+R",
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undo: "Undo - Ctrl+Z",
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redo: "Redo - Ctrl+Y",
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redomac: "Redo - Ctrl+Shift+Z",
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help: "Markdown Editing Help"
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};
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// -------------------------------------------------------------------
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// YOUR CHANGES GO HERE
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//
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// I've tried to localize the things you are likely to change to
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// this area.
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// -------------------------------------------------------------------
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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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var imageDefaultText = "http://";
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var linkDefaultText = "http://";
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// -------------------------------------------------------------------
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// END OF YOUR CHANGES
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// -------------------------------------------------------------------
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// options, if given, can have the following properties:
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// options.helpButton = { handler: yourEventHandler }
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// options.strings = { italicexample: "slanted text" }
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// `yourEventHandler` is the click handler for the help button.
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// If `options.helpButton` isn't given, not help button is created.
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// `options.strings` can have any or all of the same properties as
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// `defaultStrings` above, so you can just override some string displayed
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// to the user on a case-by-case basis, or translate all strings to
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// a different language.
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//
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// For backwards compatibility reasons, the `options` argument can also
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// be just the `helpButton` object, and `strings.help` can also be set via
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// `helpButton.title`. This should be considered legacy.
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//
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// The constructed editor object has the methods:
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// - getConverter() returns the markdown converter object that was passed to the constructor
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// - run() actually starts the editor; should be called after all necessary plugins are registered. Calling this more than once is a no-op.
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// - refreshPreview() forces the preview to be updated. This method is only available after run() was called.
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Markdown.Editor = function (markdownConverter, idPostfix, options) {
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options = options || {};
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if (typeof options.handler === "function") { //backwards compatible behavior
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options = { helpButton: options };
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}
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options.strings = options.strings || {};
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if (options.helpButton) {
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options.strings.help = options.strings.help || options.helpButton.title;
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}
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var getString = function (identifier) { return options.strings[identifier] || defaultsStrings[identifier]; }
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idPostfix = idPostfix || "";
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var hooks = this.hooks = new Markdown.HookCollection();
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hooks.addNoop("onPreviewRefresh"); // called with no arguments after the preview has been refreshed
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hooks.addNoop("postBlockquoteCreation"); // called with the user's selection *after* the blockquote was created; should return the actual to-be-inserted text
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hooks.addFalse("insertImageDialog"); /* called with one parameter: a callback to be called with the URL of the image. If the application creates
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* its own image insertion dialog, this hook should return true, and the callback should be called with the chosen
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* image url (or null if the user cancelled). If this hook returns false, the default dialog will be used.
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*/
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hooks.addFalse("insertLinkDialog");
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this.getConverter = function () { return markdownConverter; }
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var that = this,
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panels;
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this.run = function (previewWrapper) {
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if (panels)
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return; // already initialized
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panels = new PanelCollection(idPostfix);
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var commandManager = new CommandManager(hooks, getString);
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var previewManager = new PreviewManager(markdownConverter, panels, function () { hooks.onPreviewRefresh(); }, previewWrapper);
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var undoManager, uiManager;
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if (!/\?noundo/.test(doc.location.href)) {
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undoManager = new UndoManager(function () {
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previewManager.refresh();
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if (uiManager) // not available on the first call
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uiManager.setUndoRedoButtonStates();
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}, panels);
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this.textOperation = function (f) {
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undoManager.setCommandMode();
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f();
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that.refreshPreview();
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}
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}
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uiManager = new UIManager(idPostfix, panels, undoManager, previewManager, commandManager, options.helpButton, getString);
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uiManager.setUndoRedoButtonStates();
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var forceRefresh = that.refreshPreview = function () { previewManager.refresh(true); };
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forceRefresh();
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};
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}
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// before: contains all the text in the input box BEFORE the selection.
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// after: contains all the text in the input box AFTER the selection.
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function Chunks() { }
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// startRegex: a regular expression to find the start tag
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// endRegex: a regular expresssion to find the end tag
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Chunks.prototype.findTags = function (startRegex, endRegex) {
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var chunkObj = this;
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var regex;
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if (startRegex) {
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regex = util.extendRegExp(startRegex, "", "$");
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this.before = this.before.replace(regex,
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function (match) {
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chunkObj.startTag = chunkObj.startTag + match;
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return "";
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});
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regex = util.extendRegExp(startRegex, "^", "");
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this.selection = this.selection.replace(regex,
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function (match) {
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chunkObj.startTag = chunkObj.startTag + match;
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return "";
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});
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}
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if (endRegex) {
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regex = util.extendRegExp(endRegex, "", "$");
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this.selection = this.selection.replace(regex,
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function (match) {
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chunkObj.endTag = match + chunkObj.endTag;
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return "";
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});
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regex = util.extendRegExp(endRegex, "^", "");
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this.after = this.after.replace(regex,
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function (match) {
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chunkObj.endTag = match + chunkObj.endTag;
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return "";
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});
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}
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};
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// If remove is false, the whitespace is transferred
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// to the before/after regions.
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//
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// If remove is true, the whitespace disappears.
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Chunks.prototype.trimWhitespace = function (remove) {
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var beforeReplacer, afterReplacer, that = this;
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if (remove) {
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beforeReplacer = afterReplacer = "";
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} else {
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beforeReplacer = function (s) { that.before += s; return ""; }
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afterReplacer = function (s) { that.after = s + that.after; return ""; }
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}
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this.selection = this.selection.replace(/^(\s*)/, beforeReplacer).replace(/(\s*)$/, afterReplacer);
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};
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Chunks.prototype.skipLines = function (nLinesBefore, nLinesAfter, findExtraNewlines) {
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if (nLinesBefore === undefined) {
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nLinesBefore = 1;
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}
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if (nLinesAfter === undefined) {
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nLinesAfter = 1;
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}
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nLinesBefore++;
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nLinesAfter++;
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var regexText;
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var replacementText;
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// chrome bug ... documented at: http://meta.stackoverflow.com/questions/63307/blockquote-glitch-in-editor-in-chrome-6-and-7/65985#65985
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if (navigator.userAgent.match(/Chrome/)) {
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"X".match(/()./);
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}
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this.selection = this.selection.replace(/(^\n*)/, "");
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this.startTag = this.startTag + re.$1;
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this.selection = this.selection.replace(/(\n*$)/, "");
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this.endTag = this.endTag + re.$1;
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this.startTag = this.startTag.replace(/(^\n*)/, "");
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this.before = this.before + re.$1;
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this.endTag = this.endTag.replace(/(\n*$)/, "");
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this.after = this.after + re.$1;
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if (this.before) {
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regexText = replacementText = "";
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while (nLinesBefore--) {
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regexText += "\\n?";
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replacementText += "\n";
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}
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if (findExtraNewlines) {
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regexText = "\\n*";
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}
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this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
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}
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if (this.after) {
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regexText = replacementText = "";
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while (nLinesAfter--) {
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regexText += "\\n?";
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replacementText += "\n";
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}
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if (findExtraNewlines) {
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regexText = "\\n*";
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}
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this.after = this.after.replace(new re(regexText, ""), replacementText);
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}
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};
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// end of Chunks
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// A collection of the important regions on the page.
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// Cached so we don't have to keep traversing the DOM.
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// Also holds ieCachedRange and ieCachedScrollTop, where necessary; working around
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// this issue:
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// Internet explorer has problems with CSS sprite buttons that use HTML
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// lists. When you click on the background image "button", IE will
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// select the non-existent link text and discard the selection in the
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// textarea. The solution to this is to cache the textarea selection
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// on the button's mousedown event and set a flag. In the part of the
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// code where we need to grab the selection, we check for the flag
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// and, if it's set, use the cached area instead of querying the
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// textarea.
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//
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// This ONLY affects Internet Explorer (tested on versions 6, 7
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// and 8) and ONLY on button clicks. Keyboard shortcuts work
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// normally since the focus never leaves the textarea.
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function PanelCollection(postfix) {
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this.buttonBar = doc.getElementById("wmd-button-bar" + postfix);
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this.preview = doc.getElementById("wmd-preview" + postfix);
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this.input = doc.getElementById("wmd-input" + postfix);
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};
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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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util.isVisible = function (elem) {
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if (window.getComputedStyle) {
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// Most browsers
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return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none";
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}
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else if (elem.currentStyle) {
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// IE
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return elem.currentStyle["display"] !== "none";
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}
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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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util.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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util.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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util.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 "$" to the end).
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// The flags are unchanged.
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//
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// regex is a RegExp, pre and post are strings.
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util.extendRegExp = function (regex, pre, post) {
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if (pre === null || pre === undefined) {
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pre = "";
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}
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if (post === null || post === undefined) {
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post = "";
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}
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var pattern = regex.toString();
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var flags;
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// Replace the flags with empty space and store them.
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pattern = pattern.replace(/\/([gim]*)$/, function (wholeMatch, flagsPart) {
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flags = flagsPart;
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return "";
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});
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// Remove the slash delimiters on the regular expression.
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pattern = pattern.replace(/(^\/|\/$)/g, "");
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pattern = pre + pattern + post;
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return new re(pattern, flags);
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}
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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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position.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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position.getHeight = function (elem) {
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return elem.offsetHeight || elem.scrollHeight;
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};
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position.getWidth = function (elem) {
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return elem.offsetWidth || elem.scrollWidth;
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};
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position.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 = doc.body.scrollWidth;
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scrollHeight = self.innerHeight + self.scrollMaxY;
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}
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else if (doc.body.scrollHeight > doc.body.offsetHeight) {
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scrollWidth = doc.body.scrollWidth;
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scrollHeight = doc.body.scrollHeight;
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}
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else {
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scrollWidth = doc.body.offsetWidth;
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scrollHeight = doc.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 (doc.documentElement && doc.documentElement.clientHeight) {
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// Some versions of IE (IE 6 w/ a DOCTYPE declaration)
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innerWidth = doc.documentElement.clientWidth;
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innerHeight = doc.documentElement.clientHeight;
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}
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else if (doc.body) {
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// Other versions of IE
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innerWidth = doc.body.clientWidth;
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innerHeight = doc.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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// Handles pushing and popping TextareaStates for undo/redo commands.
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// I should rename the stack variables to list.
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function UndoManager(callback, panels) {
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var undoObj = this;
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var undoStack = []; // A stack of undo states
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var stackPtr = 0; // The index of the current state
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var mode = "none";
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var lastState; // The last state
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var timer; // The setTimeout handle for cancelling the timer
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var inputStateObj;
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// Set the mode for later logic steps.
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var setMode = function (newMode, noSave) {
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if (mode != newMode) {
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mode = newMode;
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if (!noSave) {
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saveState();
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}
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}
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if (!uaSniffed.isIE || mode != "moving") {
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timer = setTimeout(refreshState, 1);
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}
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else {
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inputStateObj = null;
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}
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};
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var refreshState = function (isInitialState) {
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inputStateObj = new TextareaState(panels, isInitialState);
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timer = undefined;
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};
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this.setCommandMode = function () {
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mode = "command";
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saveState();
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timer = setTimeout(refreshState, 0);
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};
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this.canUndo = function () {
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return stackPtr > 1;
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};
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this.canRedo = function () {
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if (undoStack[stackPtr + 1]) {
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return true;
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}
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return false;
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};
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// Removes the last state and restores it.
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this.undo = function () {
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if (undoObj.canUndo()) {
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if (lastState) {
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// What about setting state -1 to null or checking for undefined?
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lastState.restore();
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lastState = null;
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}
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else {
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undoStack[stackPtr] = new TextareaState(panels);
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undoStack[--stackPtr].restore();
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if (callback) {
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callback();
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}
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}
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}
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mode = "none";
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panels.input.focus();
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refreshState();
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};
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// Redo an action.
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this.redo = function () {
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if (undoObj.canRedo()) {
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undoStack[++stackPtr].restore();
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if (callback) {
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callback();
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}
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}
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mode = "none";
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panels.input.focus();
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refreshState();
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};
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// Push the input area state to the stack.
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var saveState = function () {
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var currState = inputStateObj || new TextareaState(panels);
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if (!currState) {
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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) && !event.altKey) {
|
|
|
|
// IE and Opera do not support charCode.
|
|
var keyCode = event.charCode || event.keyCode;
|
|
var keyCodeChar = String.fromCharCode(keyCode);
|
|
|
|
switch (keyCodeChar.toLowerCase()) {
|
|
|
|
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(panels.input, "keypress", function (event) {
|
|
// keyCode 89: y
|
|
// keyCode 90: z
|
|
if ((event.ctrlKey || event.metaKey) && !event.altKey && (event.keyCode == 89 || event.keyCode == 90)) {
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
var handlePaste = function () {
|
|
if (uaSniffed.isIE || (inputStateObj && inputStateObj.text != panels.input.value)) {
|
|
if (timer == undefined) {
|
|
mode = "paste";
|
|
saveState();
|
|
refreshState();
|
|
}
|
|
}
|
|
};
|
|
|
|
util.addEvent(panels.input, "keydown", handleCtrlYZ);
|
|
util.addEvent(panels.input, "keydown", handleModeChange);
|
|
util.addEvent(panels.input, "mousedown", function () {
|
|
setMode("moving");
|
|
});
|
|
|
|
panels.input.onpaste = handlePaste;
|
|
panels.input.ondrop = handlePaste;
|
|
};
|
|
|
|
var init = function () {
|
|
setEventHandlers();
|
|
refreshState(true);
|
|
saveState();
|
|
};
|
|
|
|
init();
|
|
}
|
|
|
|
// end of UndoManager
|
|
|
|
// The input textarea state/contents.
|
|
// This is used to implement undo/redo by the undo manager.
|
|
function TextareaState(panels, isInitialState) {
|
|
|
|
// Aliases
|
|
var stateObj = this;
|
|
var inputArea = panels.input;
|
|
this.init = function () {
|
|
if (!util.isVisible(inputArea)) {
|
|
return;
|
|
}
|
|
if (!isInitialState && doc.activeElement && doc.activeElement !== inputArea) { // this happens when tabbing out of the input box
|
|
return;
|
|
}
|
|
|
|
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 && !uaSniffed.isOpera) {
|
|
|
|
inputArea.focus();
|
|
inputArea.selectionStart = stateObj.start;
|
|
inputArea.selectionEnd = stateObj.end;
|
|
inputArea.scrollTop = stateObj.scrollTop;
|
|
}
|
|
else if (doc.selection) {
|
|
|
|
if (doc.activeElement && doc.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 (!panels.ieCachedRange && (inputArea.selectionStart || inputArea.selectionStart === 0)) {
|
|
|
|
stateObj.start = inputArea.selectionStart;
|
|
stateObj.end = inputArea.selectionEnd;
|
|
}
|
|
else if (doc.selection) {
|
|
|
|
stateObj.text = util.fixEolChars(inputArea.value);
|
|
|
|
// IE loses the selection in the textarea when buttons are
|
|
// clicked. On IE we cache the selection. Here, if something is cached,
|
|
// we take it.
|
|
var range = panels.ieCachedRange || doc.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;
|
|
}
|
|
|
|
if (panels.ieCachedRange)
|
|
stateObj.scrollTop = panels.ieCachedScrollTop; // this is set alongside with ieCachedRange
|
|
|
|
panels.ieCachedRange = null;
|
|
|
|
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;
|
|
|
|
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();
|
|
};
|
|
|
|
function PreviewManager(converter, panels, previewRefreshCallback, previewWrapper) {
|
|
|
|
var managerObj = this;
|
|
var timeout;
|
|
var elapsedTime;
|
|
var oldInputText;
|
|
var maxDelay = 3000;
|
|
var startType = "delayed"; // The other legal value is "manual"
|
|
|
|
// Adds event listeners to elements
|
|
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);
|
|
};
|
|
|
|
var getDocScrollTop = function () {
|
|
|
|
var result = 0;
|
|
|
|
if (window.innerHeight) {
|
|
result = window.pageYOffset;
|
|
}
|
|
else
|
|
if (doc.documentElement && doc.documentElement.scrollTop) {
|
|
result = doc.documentElement.scrollTop;
|
|
}
|
|
else
|
|
if (doc.body) {
|
|
result = doc.body.scrollTop;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
var makePreviewHtml = function () {
|
|
|
|
// If there is no registered preview panel
|
|
// there is nothing to do.
|
|
if (!panels.preview)
|
|
return;
|
|
|
|
|
|
var text = panels.input.value;
|
|
if (text !== undefined && text == oldInputText) {
|
|
return; // Input text hasn't changed.
|
|
}
|
|
else {
|
|
oldInputText = text;
|
|
}
|
|
|
|
var prevTime = new Date().getTime();
|
|
|
|
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);
|
|
};
|
|
if(previewWrapper !== undefined) {
|
|
makePreviewHtml = previewWrapper(makePreviewHtml);
|
|
}
|
|
|
|
// setTimeout is already used. Used as an event listener.
|
|
var applyTimeout = function () {
|
|
|
|
if (timeout) {
|
|
clearTimeout(timeout);
|
|
timeout = undefined;
|
|
}
|
|
|
|
if (startType !== "manual") {
|
|
|
|
var delay = 0;
|
|
|
|
if (startType === "delayed") {
|
|
delay = elapsedTime;
|
|
}
|
|
|
|
if (delay > maxDelay) {
|
|
delay = maxDelay;
|
|
}
|
|
timeout = 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 (panels.preview) {
|
|
panels.preview.scrollTop = (panels.preview.scrollHeight - panels.preview.clientHeight) * getScaleFactor(panels.preview);
|
|
}
|
|
};
|
|
|
|
this.refresh = function (requiresRefresh) {
|
|
|
|
if (requiresRefresh) {
|
|
oldInputText = "";
|
|
makePreviewHtml();
|
|
}
|
|
else {
|
|
applyTimeout();
|
|
}
|
|
};
|
|
|
|
this.processingTime = function () {
|
|
return elapsedTime;
|
|
};
|
|
|
|
var isFirstTimeFilled = true;
|
|
|
|
// IE doesn't let you use innerHTML if the element is contained somewhere in a table
|
|
// (which is the case for inline editing) -- in that case, detach the element, set the
|
|
// value, and reattach. Yes, that *is* ridiculous.
|
|
var ieSafePreviewSet = function (text) {
|
|
var preview = panels.preview;
|
|
var parent = preview.parentNode;
|
|
var sibling = preview.nextSibling;
|
|
parent.removeChild(preview);
|
|
preview.innerHTML = text;
|
|
if (!sibling)
|
|
parent.appendChild(preview);
|
|
else
|
|
parent.insertBefore(preview, sibling);
|
|
}
|
|
|
|
var nonSuckyBrowserPreviewSet = function (text) {
|
|
panels.preview.innerHTML = text;
|
|
}
|
|
|
|
var previewSetter;
|
|
|
|
var previewSet = function (text) {
|
|
if (previewSetter)
|
|
return previewSetter(text);
|
|
|
|
try {
|
|
nonSuckyBrowserPreviewSet(text);
|
|
previewSetter = nonSuckyBrowserPreviewSet;
|
|
} catch (e) {
|
|
previewSetter = ieSafePreviewSet;
|
|
previewSetter(text);
|
|
}
|
|
};
|
|
|
|
var pushPreviewHtml = function (text) {
|
|
|
|
var emptyTop = position.getTop(panels.input) - getDocScrollTop();
|
|
|
|
if (panels.preview) {
|
|
previewSet(text);
|
|
previewRefreshCallback();
|
|
}
|
|
|
|
setPanelScrollTops();
|
|
|
|
if (isFirstTimeFilled) {
|
|
isFirstTimeFilled = false;
|
|
return;
|
|
}
|
|
|
|
var fullTop = position.getTop(panels.input) - getDocScrollTop();
|
|
|
|
if (uaSniffed.isIE) {
|
|
setTimeout(function () {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}, 0);
|
|
}
|
|
else {
|
|
window.scrollBy(0, fullTop - emptyTop);
|
|
}
|
|
};
|
|
|
|
var init = function () {
|
|
|
|
setupEvents(panels.input, applyTimeout);
|
|
makePreviewHtml();
|
|
|
|
if (panels.preview) {
|
|
panels.preview.scrollTop = 0;
|
|
}
|
|
};
|
|
|
|
init();
|
|
};
|
|
|
|
// Creates the background behind the hyperlink text entry box.
|
|
// And download dialog
|
|
// Most of this has been moved to CSS but the div creation and
|
|
// browser-specific hacks remain here.
|
|
ui.createBackground = function () {
|
|
|
|
var background = doc.createElement("div"),
|
|
style = background.style;
|
|
|
|
background.className = "wmd-prompt-background";
|
|
|
|
style.position = "absolute";
|
|
style.top = "0";
|
|
|
|
style.zIndex = "1000";
|
|
|
|
if (uaSniffed.isIE) {
|
|
style.filter = "alpha(opacity=50)";
|
|
}
|
|
else {
|
|
style.opacity = "0.5";
|
|
}
|
|
|
|
var pageSize = position.getPageSize();
|
|
style.height = pageSize[1] + "px";
|
|
|
|
if (uaSniffed.isIE) {
|
|
style.left = doc.documentElement.scrollLeft;
|
|
style.width = doc.documentElement.clientWidth;
|
|
}
|
|
else {
|
|
style.left = "0";
|
|
style.width = "100%";
|
|
}
|
|
|
|
doc.body.appendChild(background);
|
|
return background;
|
|
};
|
|
|
|
// This simulates a modal dialog box and asks for the URL when you
|
|
// click the hyperlink or image buttons.
|
|
//
|
|
// text: The html for the input box.
|
|
// defaultInputText: The default value that appears in the input box.
|
|
// callback: The function which is executed when the prompt is dismissed, either via OK or Cancel.
|
|
// It receives a single argument; either the entered text (if OK was chosen) or null (if Cancel
|
|
// was chosen).
|
|
ui.prompt = function (text, defaultInputText, callback) {
|
|
|
|
// These variables need to be declared at this level since they are used
|
|
// in multiple functions.
|
|
var dialog; // The dialog box.
|
|
var input; // The text box where you enter the hyperlink.
|
|
|
|
|
|
if (defaultInputText === undefined) {
|
|
defaultInputText = "";
|
|
}
|
|
|
|
// Used as a keydown event handler. Esc dismisses the prompt.
|
|
// Key code 27 is ESC.
|
|
var checkEscape = function (key) {
|
|
var code = (key.charCode || key.keyCode);
|
|
if (code === 27) {
|
|
close(true);
|
|
}
|
|
};
|
|
|
|
// Dismisses the hyperlink input box.
|
|
// isCancel is true if we don't care about the input text.
|
|
// isCancel is false if we are going to keep the text.
|
|
var close = function (isCancel) {
|
|
util.removeEvent(doc.body, "keydown", checkEscape);
|
|
var text = input.value;
|
|
|
|
if (isCancel) {
|
|
text = null;
|
|
}
|
|
else {
|
|
// Fixes common pasting errors.
|
|
text = text.replace(/^http:\/\/(https?|ftp):\/\//, '$1://');
|
|
if (!/^(?:https?|ftp):\/\//.test(text))
|
|
text = 'http://' + text;
|
|
}
|
|
|
|
dialog.parentNode.removeChild(dialog);
|
|
|
|
callback(text);
|
|
return false;
|
|
};
|
|
|
|
|
|
|
|
// Create the text input box form/window.
|
|
var createDialog = function () {
|
|
|
|
// The main dialog box.
|
|
dialog = doc.createElement("div");
|
|
dialog.className = "wmd-prompt-dialog";
|
|
dialog.style.padding = "10px;";
|
|
dialog.style.position = "fixed";
|
|
dialog.style.width = "400px";
|
|
dialog.style.zIndex = "1001";
|
|
|
|
// The dialog text.
|
|
var question = doc.createElement("div");
|
|
question.innerHTML = text;
|
|
question.style.padding = "5px";
|
|
dialog.appendChild(question);
|
|
|
|
// The web form container for the text box and buttons.
|
|
var form = doc.createElement("form"),
|
|
style = form.style;
|
|
form.onsubmit = function () { return close(false); };
|
|
style.padding = "0";
|
|
style.margin = "0";
|
|
style.cssFloat = "left";
|
|
style.width = "100%";
|
|
style.textAlign = "center";
|
|
style.position = "relative";
|
|
dialog.appendChild(form);
|
|
|
|
// The input text box
|
|
input = doc.createElement("input");
|
|
input.type = "text";
|
|
input.value = defaultInputText;
|
|
style = input.style;
|
|
style.display = "block";
|
|
style.width = "80%";
|
|
style.marginLeft = style.marginRight = "auto";
|
|
form.appendChild(input);
|
|
|
|
// The ok button
|
|
var okButton = doc.createElement("input");
|
|
okButton.type = "button";
|
|
okButton.onclick = function () { return close(false); };
|
|
okButton.value = "OK";
|
|
style = okButton.style;
|
|
style.margin = "10px";
|
|
style.display = "inline";
|
|
style.width = "7em";
|
|
|
|
|
|
// The cancel button
|
|
var cancelButton = doc.createElement("input");
|
|
cancelButton.type = "button";
|
|
cancelButton.onclick = function () { return close(true); };
|
|
cancelButton.value = "Cancel";
|
|
style = cancelButton.style;
|
|
style.margin = "10px";
|
|
style.display = "inline";
|
|
style.width = "7em";
|
|
|
|
form.appendChild(okButton);
|
|
form.appendChild(cancelButton);
|
|
|
|
util.addEvent(doc.body, "keydown", checkEscape);
|
|
dialog.style.top = "50%";
|
|
dialog.style.left = "50%";
|
|
dialog.style.display = "block";
|
|
if (uaSniffed.isIE_5or6) {
|
|
dialog.style.position = "absolute";
|
|
dialog.style.top = doc.documentElement.scrollTop + 200 + "px";
|
|
dialog.style.left = "50%";
|
|
}
|
|
doc.body.appendChild(dialog);
|
|
|
|
// This has to be done AFTER adding the dialog to the form if you
|
|
// want it to be centered.
|
|
dialog.style.marginTop = -(position.getHeight(dialog) / 2) + "px";
|
|
dialog.style.marginLeft = -(position.getWidth(dialog) / 2) + "px";
|
|
|
|
};
|
|
|
|
// Why is this in a zero-length timeout?
|
|
// Is it working around a browser bug?
|
|
setTimeout(function () {
|
|
|
|
createDialog();
|
|
|
|
var defTextLen = defaultInputText.length;
|
|
if (input.selectionStart !== undefined) {
|
|
input.selectionStart = 0;
|
|
input.selectionEnd = defTextLen;
|
|
}
|
|
else if (input.createTextRange) {
|
|
var range = input.createTextRange();
|
|
range.collapse(false);
|
|
range.moveStart("character", -defTextLen);
|
|
range.moveEnd("character", defTextLen);
|
|
range.select();
|
|
}
|
|
|
|
input.focus();
|
|
}, 0);
|
|
};
|
|
|
|
function UIManager(postfix, panels, undoManager, previewManager, commandManager, helpOptions, getString) {
|
|
|
|
var inputBox = panels.input,
|
|
buttons = {}; // buttons.undo, buttons.link, etc. The actual DOM elements.
|
|
|
|
makeSpritedButtonRow();
|
|
|
|
var keyEvent = "keydown";
|
|
if (uaSniffed.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 ((key.ctrlKey || key.metaKey) && !key.altKey && !key.shiftKey) {
|
|
|
|
var keyCode = key.charCode || key.keyCode;
|
|
var keyCodeStr = String.fromCharCode(keyCode).toLowerCase();
|
|
|
|
switch (keyCodeStr) {
|
|
case "b":
|
|
doClick(buttons.bold);
|
|
break;
|
|
case "i":
|
|
doClick(buttons.italic);
|
|
break;
|
|
case "l":
|
|
doClick(buttons.link);
|
|
break;
|
|
case "q":
|
|
doClick(buttons.quote);
|
|
break;
|
|
case "k":
|
|
doClick(buttons.code);
|
|
break;
|
|
case "g":
|
|
doClick(buttons.image);
|
|
break;
|
|
case "o":
|
|
doClick(buttons.olist);
|
|
break;
|
|
case "u":
|
|
doClick(buttons.ulist);
|
|
break;
|
|
case "h":
|
|
doClick(buttons.heading);
|
|
break;
|
|
case "r":
|
|
doClick(buttons.hr);
|
|
break;
|
|
case "y":
|
|
doClick(buttons.redo);
|
|
break;
|
|
case "z":
|
|
if (key.shiftKey) {
|
|
doClick(buttons.redo);
|
|
}
|
|
else {
|
|
doClick(buttons.undo);
|
|
}
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
|
|
if (key.preventDefault) {
|
|
key.preventDefault();
|
|
}
|
|
|
|
if (window.event) {
|
|
window.event.returnValue = false;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Auto-indent on shift-enter
|
|
util.addEvent(inputBox, "keyup", function (key) {
|
|
if (key.shiftKey && !key.ctrlKey && !key.metaKey) {
|
|
var keyCode = key.charCode || key.keyCode;
|
|
// Character 13 is Enter
|
|
if (keyCode === 13) {
|
|
var fakeButton = {};
|
|
fakeButton.textOp = bindCommand("doAutoindent");
|
|
doClick(fakeButton);
|
|
}
|
|
}
|
|
});
|
|
|
|
// special handler because IE clears the context of the textbox on ESC
|
|
if (uaSniffed.isIE) {
|
|
util.addEvent(inputBox, "keydown", function (key) {
|
|
var code = key.keyCode;
|
|
if (code === 27) {
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
// Perform the button's action.
|
|
function doClick(button) {
|
|
|
|
inputBox.focus();
|
|
|
|
if (button.textOp) {
|
|
|
|
if (undoManager) {
|
|
undoManager.setCommandMode();
|
|
}
|
|
|
|
var state = new TextareaState(panels);
|
|
|
|
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();
|
|
previewManager.refresh();
|
|
};
|
|
|
|
var noCleanup = button.textOp(chunks, fixupInputArea);
|
|
|
|
if (!noCleanup) {
|
|
fixupInputArea();
|
|
}
|
|
|
|
}
|
|
|
|
if (button.execute) {
|
|
button.execute(undoManager);
|
|
}
|
|
};
|
|
|
|
function setupButton(button, isEnabled) {
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
var image = button.getElementsByTagName("span")[0];
|
|
if (isEnabled) {
|
|
image.style.backgroundPosition = button.XShift + " " + normalYShift;
|
|
button.onmouseover = function () {
|
|
image.style.backgroundPosition = this.XShift + " " + highlightYShift;
|
|
};
|
|
|
|
button.onmouseout = function () {
|
|
image.style.backgroundPosition = this.XShift + " " + normalYShift;
|
|
};
|
|
|
|
// 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 (uaSniffed.isIE) {
|
|
button.onmousedown = function () {
|
|
if (doc.activeElement && doc.activeElement !== panels.input) { // we're not even in the input box, so there's no selection
|
|
return;
|
|
}
|
|
panels.ieCachedRange = document.selection.createRange();
|
|
panels.ieCachedScrollTop = panels.input.scrollTop;
|
|
};
|
|
}
|
|
|
|
if (!button.isHelp) {
|
|
button.onclick = function () {
|
|
if (this.onmouseout) {
|
|
this.onmouseout();
|
|
}
|
|
doClick(this);
|
|
return false;
|
|
}
|
|
}
|
|
button.className = button.className.replace(/ disabled/g, "");
|
|
}
|
|
else {
|
|
image.style.backgroundPosition = button.XShift + " " + disabledYShift;
|
|
button.onmouseover = button.onmouseout = button.onclick = function () { };
|
|
button.className += " disabled";
|
|
}
|
|
}
|
|
|
|
function bindCommand(method) {
|
|
if (typeof method === "string")
|
|
method = commandManager[method];
|
|
return function () { method.apply(commandManager, arguments); }
|
|
}
|
|
|
|
function makeSpritedButtonRow() {
|
|
|
|
var buttonBar = panels.buttonBar;
|
|
|
|
var normalYShift = "0px";
|
|
var disabledYShift = "-20px";
|
|
var highlightYShift = "-40px";
|
|
|
|
var buttonRow = document.createElement("ul");
|
|
buttonRow.id = "wmd-button-row" + postfix;
|
|
buttonRow.className = 'wmd-button-row';
|
|
buttonRow = buttonBar.appendChild(buttonRow);
|
|
var xPosition = 0;
|
|
var makeButton = function (id, title, XShift, textOp) {
|
|
var button = document.createElement("li");
|
|
button.className = "wmd-button";
|
|
button.style.left = xPosition + "px";
|
|
xPosition += 25;
|
|
var buttonImage = document.createElement("span");
|
|
button.id = id + postfix;
|
|
button.appendChild(buttonImage);
|
|
button.title = title;
|
|
button.XShift = XShift;
|
|
if (textOp)
|
|
button.textOp = textOp;
|
|
setupButton(button, true);
|
|
buttonRow.appendChild(button);
|
|
return button;
|
|
};
|
|
var makeSpacer = function (num) {
|
|
var spacer = document.createElement("li");
|
|
spacer.className = "wmd-spacer wmd-spacer" + num;
|
|
spacer.id = "wmd-spacer" + num + postfix;
|
|
buttonRow.appendChild(spacer);
|
|
xPosition += 25;
|
|
}
|
|
|
|
buttons.bold = makeButton("wmd-bold-button", getString("bold"), "0px", bindCommand("doBold"));
|
|
buttons.italic = makeButton("wmd-italic-button", getString("italic"), "-20px", bindCommand("doItalic"));
|
|
makeSpacer(1);
|
|
buttons.link = makeButton("wmd-link-button", getString("link"), "-40px", bindCommand(function (chunk, postProcessing) {
|
|
return this.doLinkOrImage(chunk, postProcessing, false);
|
|
}));
|
|
buttons.quote = makeButton("wmd-quote-button", getString("quote"), "-60px", bindCommand("doBlockquote"));
|
|
buttons.code = makeButton("wmd-code-button", getString("code"), "-80px", bindCommand("doCode"));
|
|
buttons.image = makeButton("wmd-image-button", getString("image"), "-100px", bindCommand(function (chunk, postProcessing) {
|
|
return this.doLinkOrImage(chunk, postProcessing, true);
|
|
}));
|
|
makeSpacer(2);
|
|
buttons.olist = makeButton("wmd-olist-button", getString("olist"), "-120px", bindCommand(function (chunk, postProcessing) {
|
|
this.doList(chunk, postProcessing, true);
|
|
}));
|
|
buttons.ulist = makeButton("wmd-ulist-button", getString("ulist"), "-140px", bindCommand(function (chunk, postProcessing) {
|
|
this.doList(chunk, postProcessing, false);
|
|
}));
|
|
buttons.heading = makeButton("wmd-heading-button", getString("heading"), "-160px", bindCommand("doHeading"));
|
|
buttons.hr = makeButton("wmd-hr-button", getString("hr"), "-180px", bindCommand("doHorizontalRule"));
|
|
makeSpacer(3);
|
|
buttons.undo = makeButton("wmd-undo-button", getString("undo"), "-200px", null);
|
|
buttons.undo.execute = function (manager) { if (manager) manager.undo(); };
|
|
|
|
var redoTitle = /win/.test(nav.platform.toLowerCase()) ?
|
|
getString("redo") :
|
|
getString("redomac"); // mac and other non-Windows platforms
|
|
|
|
buttons.redo = makeButton("wmd-redo-button", redoTitle, "-220px", null);
|
|
buttons.redo.execute = function (manager) { if (manager) manager.redo(); };
|
|
|
|
if (helpOptions) {
|
|
var helpButton = document.createElement("li");
|
|
var helpButtonImage = document.createElement("span");
|
|
helpButton.appendChild(helpButtonImage);
|
|
helpButton.className = "wmd-button wmd-help-button";
|
|
helpButton.id = "wmd-help-button" + postfix;
|
|
helpButton.XShift = "-240px";
|
|
helpButton.isHelp = true;
|
|
helpButton.style.right = "0px";
|
|
helpButton.title = getString("help");
|
|
helpButton.onclick = helpOptions.handler;
|
|
|
|
setupButton(helpButton, true);
|
|
buttonRow.appendChild(helpButton);
|
|
buttons.help = helpButton;
|
|
}
|
|
|
|
setUndoRedoButtonStates();
|
|
}
|
|
|
|
function setUndoRedoButtonStates() {
|
|
if (undoManager) {
|
|
setupButton(buttons.undo, undoManager.canUndo());
|
|
setupButton(buttons.redo, undoManager.canRedo());
|
|
}
|
|
};
|
|
|
|
this.setUndoRedoButtonStates = setUndoRedoButtonStates;
|
|
|
|
}
|
|
|
|
function CommandManager(pluginHooks, getString) {
|
|
this.hooks = pluginHooks;
|
|
this.getString = getString;
|
|
}
|
|
|
|
var commandProto = CommandManager.prototype;
|
|
|
|
// The markdown symbols - 4 spaces = code, > = blockquote, etc.
|
|
commandProto.prefixes = "(?:\\s{4,}|\\s*>|\\s*-\\s+|\\s*\\d+\\.|=|\\+|-|_|\\*|#|\\s*\\[[^\n]]+\\]:)";
|
|
|
|
// Remove markdown symbols from the chunk selection.
|
|
commandProto.unwrap = function (chunk) {
|
|
var txt = new re("([^\\n])\\n(?!(\\n|" + this.prefixes + "))", "g");
|
|
chunk.selection = chunk.selection.replace(txt, "$1 $2");
|
|
};
|
|
|
|
commandProto.wrap = function (chunk, len) {
|
|
this.unwrap(chunk);
|
|
var regex = new re("(.{1," + len + "})( +|$\\n?)", "gm"),
|
|
that = this;
|
|
|
|
chunk.selection = chunk.selection.replace(regex, function (line, marked) {
|
|
if (new re("^" + that.prefixes, "").test(line)) {
|
|
return line;
|
|
}
|
|
return marked + "\n";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/\s+$/, "");
|
|
};
|
|
|
|
commandProto.doBold = function (chunk, postProcessing) {
|
|
return this.doBorI(chunk, postProcessing, 2, this.getString("boldexample"));
|
|
};
|
|
|
|
commandProto.doItalic = function (chunk, postProcessing) {
|
|
return this.doBorI(chunk, postProcessing, 1, this.getString("italicexample"));
|
|
};
|
|
|
|
// chunk: The selected region that will be enclosed with */**
|
|
// nStars: 1 for italics, 2 for bold
|
|
// insertText: If you just click the button without highlighting text, this gets inserted
|
|
commandProto.doBorI = function (chunk, postProcessing, nStars, insertText) {
|
|
|
|
// Get rid of whitespace and fixup newlines.
|
|
chunk.trimWhitespace();
|
|
chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n");
|
|
|
|
// Look for stars before and after. Is the chunk already marked up?
|
|
// note that these regex matches cannot fail
|
|
var starsBefore = /(\**$)/.exec(chunk.before)[0];
|
|
var starsAfter = /(^\**)/.exec(chunk.after)[0];
|
|
|
|
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;
|
|
};
|
|
|
|
commandProto.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;
|
|
};
|
|
|
|
commandProto.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 = this.stripLinkDefs(chunk.before, defsToAdd);
|
|
chunk.selection = this.stripLinkDefs(chunk.selection, defsToAdd);
|
|
chunk.after = this.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;
|
|
};
|
|
|
|
// note that
|
|
// a) the recursive call to getLink cannot go infinite, because by definition
|
|
// of regex, inner is always a proper substring of wholeMatch, and
|
|
// b) more than one level of nesting is neither supported by the regex
|
|
// nor making a lot of sense (the only use case for nesting is a linked image)
|
|
var getLink = function (wholeMatch, before, inner, afterInner, id, end) {
|
|
inner = inner.replace(regex, getLink);
|
|
if (defsToAdd[id]) {
|
|
addDefNumber(defsToAdd[id]);
|
|
return before + inner + afterInner + 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;
|
|
};
|
|
|
|
// takes the line as entered into the add link/as image dialog and makes
|
|
// sure the URL and the optinal title are "nice".
|
|
function properlyEncoded(linkdef) {
|
|
return linkdef.replace(/^\s*(.*?)(?:\s+"(.+)")?\s*$/, function (wholematch, link, title) {
|
|
link = link.replace(/\?.*$/, function (querypart) {
|
|
return querypart.replace(/\+/g, " "); // in the query string, a plus and a space are identical
|
|
});
|
|
link = decodeURIComponent(link); // unencode first, to prevent double encoding
|
|
link = encodeURI(link).replace(/'/g, '%27').replace(/\(/g, '%28').replace(/\)/g, '%29');
|
|
link = link.replace(/\?.*$/, function (querypart) {
|
|
return querypart.replace(/\+/g, "%2b"); // since we replaced plus with spaces in the query part, all pluses that now appear where originally encoded
|
|
});
|
|
if (title) {
|
|
title = title.trim ? title.trim() : title.replace(/^\s*/, "").replace(/\s*$/, "");
|
|
title = title.replace(/"/g, "quot;").replace(/\(/g, "(").replace(/\)/g, ")").replace(/</g, "<").replace(/>/g, ">");
|
|
}
|
|
return title ? link + ' "' + title + '"' : link;
|
|
});
|
|
}
|
|
|
|
commandProto.doLinkOrImage = function (chunk, postProcessing, isImage) {
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/\s*!?\[/, /\][ ]?(?:\n[ ]*)?(\[.*?\])?/);
|
|
var background;
|
|
|
|
if (chunk.endTag.length > 1 && chunk.startTag.length > 0) {
|
|
|
|
chunk.startTag = chunk.startTag.replace(/!?\[/, "");
|
|
chunk.endTag = "";
|
|
this.addLinkDef(chunk, null);
|
|
|
|
}
|
|
else {
|
|
|
|
// We're moving start and end tag back into the selection, since (as we're in the else block) we're not
|
|
// *removing* a link, but *adding* one, so whatever findTags() found is now back to being part of the
|
|
// link text. linkEnteredCallback takes care of escaping any brackets.
|
|
chunk.selection = chunk.startTag + chunk.selection + chunk.endTag;
|
|
chunk.startTag = chunk.endTag = "";
|
|
|
|
if (/\n\n/.test(chunk.selection)) {
|
|
this.addLinkDef(chunk, null);
|
|
return;
|
|
}
|
|
var that = this;
|
|
// The function to be executed when you enter a link and press OK or Cancel.
|
|
// Marks up the link and adds the ref.
|
|
var linkEnteredCallback = function (link) {
|
|
|
|
background.parentNode.removeChild(background);
|
|
|
|
if (link !== null) {
|
|
// ( $1
|
|
// [^\\] anything that's not a backslash
|
|
// (?:\\\\)* an even number (this includes zero) of backslashes
|
|
// )
|
|
// (?= followed by
|
|
// [[\]] an opening or closing bracket
|
|
// )
|
|
//
|
|
// In other words, a non-escaped bracket. These have to be escaped now to make sure they
|
|
// don't count as the end of the link or similar.
|
|
// Note that the actual bracket has to be a lookahead, because (in case of to subsequent brackets),
|
|
// the bracket in one match may be the "not a backslash" character in the next match, so it
|
|
// should not be consumed by the first match.
|
|
// The "prepend a space and finally remove it" steps makes sure there is a "not a backslash" at the
|
|
// start of the string, so this also works if the selection begins with a bracket. We cannot solve
|
|
// this by anchoring with ^, because in the case that the selection starts with two brackets, this
|
|
// would mean a zero-width match at the start. Since zero-width matches advance the string position,
|
|
// the first bracket could then not act as the "not a backslash" for the second.
|
|
chunk.selection = (" " + chunk.selection).replace(/([^\\](?:\\\\)*)(?=[[\]])/g, "$1\\").substr(1);
|
|
|
|
var linkDef = " [999]: " + properlyEncoded(link);
|
|
|
|
var num = that.addLinkDef(chunk, linkDef);
|
|
chunk.startTag = isImage ? "![" : "[";
|
|
chunk.endTag = "][" + num + "]";
|
|
|
|
if (!chunk.selection) {
|
|
if (isImage) {
|
|
chunk.selection = that.getString("imagedescription");
|
|
}
|
|
else {
|
|
chunk.selection = that.getString("linkdescription");
|
|
}
|
|
}
|
|
}
|
|
postProcessing();
|
|
};
|
|
|
|
background = ui.createBackground();
|
|
|
|
if (isImage) {
|
|
if (!this.hooks.insertImageDialog(linkEnteredCallback))
|
|
ui.prompt(this.getString("imagedialog"), imageDefaultText, linkEnteredCallback);
|
|
}
|
|
else {
|
|
if (!this.hooks.insertLinkDialog(linkEnteredCallback))
|
|
ui.prompt(this.getString("linkdialog"), linkDefaultText, linkEnteredCallback);
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// When making a list, hitting shift-enter will put your cursor on the next line
|
|
// at the current indent level.
|
|
commandProto.doAutoindent = function (chunk, postProcessing) {
|
|
|
|
var commandMgr = this,
|
|
fakeSelection = false;
|
|
|
|
chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\n\n");
|
|
chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}>[ \t]*\n$/, "\n\n");
|
|
chunk.before = chunk.before.replace(/(\n|^)[ \t]+\n$/, "\n\n");
|
|
|
|
// There's no selection, end the cursor wasn't at the end of the line:
|
|
// The user wants to split the current list item / code line / blockquote line
|
|
// (for the latter it doesn't really matter) in two. Temporarily select the
|
|
// (rest of the) line to achieve this.
|
|
if (!chunk.selection && !/^[ \t]*(?:\n|$)/.test(chunk.after)) {
|
|
chunk.after = chunk.after.replace(/^[^\n]*/, function (wholeMatch) {
|
|
chunk.selection = wholeMatch;
|
|
return "";
|
|
});
|
|
fakeSelection = true;
|
|
}
|
|
|
|
if (/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doList) {
|
|
commandMgr.doList(chunk);
|
|
}
|
|
}
|
|
if (/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doBlockquote) {
|
|
commandMgr.doBlockquote(chunk);
|
|
}
|
|
}
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
if (commandMgr.doCode) {
|
|
commandMgr.doCode(chunk);
|
|
}
|
|
}
|
|
|
|
if (fakeSelection) {
|
|
chunk.after = chunk.selection + chunk.after;
|
|
chunk.selection = "";
|
|
}
|
|
};
|
|
|
|
commandProto.doBlockquote = function (chunk, postProcessing) {
|
|
|
|
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 "";
|
|
});
|
|
|
|
chunk.selection = chunk.selection.replace(/^(\s|>)+$/, "");
|
|
chunk.selection = chunk.selection || this.getString("quoteexample");
|
|
|
|
// The original code uses a regular expression to find out how much of the
|
|
// text *directly before* the selection already was a blockquote:
|
|
|
|
/*
|
|
if (chunk.before) {
|
|
chunk.before = chunk.before.replace(/\n?$/, "\n");
|
|
}
|
|
chunk.before = chunk.before.replace(/(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*$)/,
|
|
function (totalMatch) {
|
|
chunk.startTag = totalMatch;
|
|
return "";
|
|
});
|
|
*/
|
|
|
|
// This comes down to:
|
|
// Go backwards as many lines a possible, such that each line
|
|
// a) starts with ">", or
|
|
// b) is almost empty, except for whitespace, or
|
|
// c) is preceeded by an unbroken chain of non-empty lines
|
|
// leading up to a line that starts with ">" and at least one more character
|
|
// and in addition
|
|
// d) at least one line fulfills a)
|
|
//
|
|
// Since this is essentially a backwards-moving regex, it's susceptible to
|
|
// catstrophic backtracking and can cause the browser to hang;
|
|
// see e.g. http://meta.stackoverflow.com/questions/9807.
|
|
//
|
|
// Hence we replaced this by a simple state machine that just goes through the
|
|
// lines and checks for a), b), and c).
|
|
|
|
var match = "",
|
|
leftOver = "",
|
|
line;
|
|
if (chunk.before) {
|
|
var lines = chunk.before.replace(/\n$/, "").split("\n");
|
|
var inChain = false;
|
|
for (var i = 0; i < lines.length; i++) {
|
|
var good = false;
|
|
line = lines[i];
|
|
inChain = inChain && line.length > 0; // c) any non-empty line continues the chain
|
|
if (/^>/.test(line)) { // a)
|
|
good = true;
|
|
if (!inChain && line.length > 1) // c) any line that starts with ">" and has at least one more character starts the chain
|
|
inChain = true;
|
|
} else if (/^[ \t]*$/.test(line)) { // b)
|
|
good = true;
|
|
} else {
|
|
good = inChain; // c) the line is not empty and does not start with ">", so it matches if and only if we're in the chain
|
|
}
|
|
if (good) {
|
|
match += line + "\n";
|
|
} else {
|
|
leftOver += match + line;
|
|
match = "\n";
|
|
}
|
|
}
|
|
if (!/(^|\n)>/.test(match)) { // d)
|
|
leftOver += match;
|
|
match = "";
|
|
}
|
|
}
|
|
|
|
chunk.startTag = match;
|
|
chunk.before = leftOver;
|
|
|
|
// end of change
|
|
|
|
if (chunk.after) {
|
|
chunk.after = chunk.after.replace(/^\n?/, "\n");
|
|
}
|
|
|
|
chunk.after = chunk.after.replace(/^(((\n|^)(\n[ \t]*)*>(.+\n)*.*)+(\n[ \t]*)*)/,
|
|
function (totalMatch) {
|
|
chunk.endTag = totalMatch;
|
|
return "";
|
|
}
|
|
);
|
|
|
|
var replaceBlanksInTags = function (useBracket) {
|
|
|
|
var replacement = useBracket ? "> " : "";
|
|
|
|
if (chunk.startTag) {
|
|
chunk.startTag = chunk.startTag.replace(/\n((>|\s)*)\n$/,
|
|
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)) {
|
|
this.wrap(chunk, SETTINGS.lineLength - 2);
|
|
chunk.selection = chunk.selection.replace(/^/gm, "> ");
|
|
replaceBlanksInTags(true);
|
|
chunk.skipLines();
|
|
} else {
|
|
chunk.selection = chunk.selection.replace(/^[ ]{0,3}> ?/gm, "");
|
|
this.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");
|
|
}
|
|
}
|
|
|
|
chunk.selection = this.hooks.postBlockquoteCreation(chunk.selection);
|
|
|
|
if (!/\n/.test(chunk.selection)) {
|
|
chunk.selection = chunk.selection.replace(/^(> *)/,
|
|
function (wholeMatch, blanks) {
|
|
chunk.startTag += blanks;
|
|
return "";
|
|
});
|
|
}
|
|
};
|
|
|
|
commandProto.doCode = function (chunk, postProcessing) {
|
|
|
|
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 nLinesBack = 1;
|
|
var nLinesForward = 1;
|
|
|
|
if (/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)) {
|
|
nLinesBack = 0;
|
|
}
|
|
if (/^\n(\t|[ ]{4,})/.test(chunk.after)) {
|
|
nLinesForward = 0;
|
|
}
|
|
|
|
chunk.skipLines(nLinesBack, nLinesForward);
|
|
|
|
if (!chunk.selection) {
|
|
chunk.startTag = " ";
|
|
chunk.selection = this.getString("codeexample");
|
|
}
|
|
else {
|
|
if (/^[ ]{0,3}\S/m.test(chunk.selection)) {
|
|
if (/\n/.test(chunk.selection))
|
|
chunk.selection = chunk.selection.replace(/^/gm, " ");
|
|
else // if it's not multiline, do not select the four added spaces; this is more consistent with the doList behavior
|
|
chunk.before += " ";
|
|
}
|
|
else {
|
|
chunk.selection = chunk.selection.replace(/^(?:[ ]{4}|[ ]{0,3}\t)/gm, "");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Use backticks (`) to delimit the code block.
|
|
|
|
chunk.trimWhitespace();
|
|
chunk.findTags(/`/, /`/);
|
|
|
|
if (!chunk.startTag && !chunk.endTag) {
|
|
chunk.startTag = chunk.endTag = "`";
|
|
if (!chunk.selection) {
|
|
chunk.selection = this.getString("codeexample");
|
|
}
|
|
}
|
|
else if (chunk.endTag && !chunk.startTag) {
|
|
chunk.before += chunk.endTag;
|
|
chunk.endTag = "";
|
|
}
|
|
else {
|
|
chunk.startTag = chunk.endTag = "";
|
|
}
|
|
}
|
|
};
|
|
|
|
commandProto.doList = function (chunk, postProcessing, isNumberedList) {
|
|
|
|
// These are identical except at the very beginning and end.
|
|
// Should probably use the regex extension function to make this clearer.
|
|
var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/;
|
|
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");
|
|
this.unwrap(chunk);
|
|
chunk.skipLines();
|
|
|
|
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 nLinesUp = 1;
|
|
|
|
chunk.before = chunk.before.replace(previousItemsRegex,
|
|
function (itemText) {
|
|
if (/^\s*([*+-])/.test(itemText)) {
|
|
bullet = re.$1;
|
|
}
|
|
nLinesUp = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
if (!chunk.selection) {
|
|
chunk.selection = this.getString("litem");
|
|
}
|
|
|
|
var prefix = getItemPrefix();
|
|
|
|
var nLinesDown = 1;
|
|
|
|
chunk.after = chunk.after.replace(nextItemsRegex,
|
|
function (itemText) {
|
|
nLinesDown = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0;
|
|
return getPrefixedItem(itemText);
|
|
});
|
|
|
|
chunk.trimWhitespace(true);
|
|
chunk.skipLines(nLinesUp, nLinesDown, true);
|
|
chunk.startTag = prefix;
|
|
var spaces = prefix.replace(/./g, " ");
|
|
this.wrap(chunk, SETTINGS.lineLength - spaces.length);
|
|
chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces);
|
|
|
|
};
|
|
|
|
commandProto.doHeading = function (chunk, postProcessing) {
|
|
|
|
// Remove leading/trailing whitespace and reduce internal spaces to single spaces.
|
|
chunk.selection = chunk.selection.replace(/\s+/g, " ");
|
|
chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/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 = this.getString("headingexample");
|
|
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.skipLines(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 > SETTINGS.lineLength) {
|
|
len = SETTINGS.lineLength;
|
|
}
|
|
chunk.endTag = "\n";
|
|
while (len--) {
|
|
chunk.endTag += headerChar;
|
|
}
|
|
}
|
|
};
|
|
|
|
commandProto.doHorizontalRule = function (chunk, postProcessing) {
|
|
chunk.startTag = "----------\n";
|
|
chunk.selection = "";
|
|
chunk.skipLines(2, 1, true);
|
|
}
|
|
|
|
|
|
})(); |