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Diffstat (limited to 'templates/content/js/wmd/wmd.js')
| -rw-r--r-- | templates/content/js/wmd/wmd.js | 2388 |
1 files changed, 2388 insertions, 0 deletions
diff --git a/templates/content/js/wmd/wmd.js b/templates/content/js/wmd/wmd.js new file mode 100644 index 00000000..7b611dba --- /dev/null +++ b/templates/content/js/wmd/wmd.js @@ -0,0 +1,2388 @@ +var Attacklab = Attacklab || {}; + +Attacklab.wmdBase = function(){ + + // A few handy aliases for readability. + var wmd = top.Attacklab; + var doc = top.document; + var re = top.RegExp; + var nav = top.navigator; + + // Some namespaces. + wmd.Util = {}; + wmd.Position = {}; + wmd.Command = {}; + wmd.Global = {}; + + var util = wmd.Util; + var position = wmd.Position; + var command = wmd.Command; + var global = wmd.Global; + + + // Used to work around some browser bugs where we can't use feature testing. + global.isIE = /msie/.test(nav.userAgent.toLowerCase()); + global.isIE_5or6 = /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase()); + global.isIE_7plus = global.isIE && !global.isIE_5or6; + global.isOpera = /opera/.test(nav.userAgent.toLowerCase()); + global.isKonqueror = /konqueror/.test(nav.userAgent.toLowerCase()); + + var toolbar_strong_label = $.i18n._('bold') + " <strong> Ctrl-B"; + var toolbar_emphasis_label = $.i18n._('italic') + " <em> Ctrl-I"; + var toolbar_hyperlink_label = $.i18n._('link') + " <a> Ctrl-L"; + var toolbar_blockquote_label = $.i18n._('quote') + " <blockquote> Ctrl-."; + var toolbar_code_label = $.i18n._('preformatted text') + " <pre><code> Ctrl-K"; + var toolbar_image_label = $.i18n._('image') + " <img> Ctrl-G"; + var toolbar_numbered_label = $.i18n._('numbered list') + " <ol> Ctrl-O"; + var toolbar_bulleted_label = $.i18n._('bulleted list') + " <ul> Ctrl-U"; + var toolbar_heading_label = $.i18n._('heading') + " <h1>/<h2> Ctrl-H"; + var toolbar_horizontal_label = $.i18n._('horizontal bar') + " <hr> Ctrl-R"; + var toolbar_undo_label = $.i18n._('undo') + " Ctrl-Z"; + var toolbar_redo_label = $.i18n._('redo') + " Ctrl-Y"; + + // ------------------------------------------------------------------- + // YOUR CHANGES GO HERE + // + // I've tried to localize the things you are likely to change to + // this area. + // ------------------------------------------------------------------- + + // The text that appears on the upper part of the dialog box when + // entering links. + var imageDialogText = "<p style='margin-top: 0px'>" + $.i18n._('enter image url') + '</p>'; + var linkDialogText = "<p style='margin-top: 0px'>" + $.i18n._('enter url') + '</p>'; + var uploadImageHTML ="<div>" + $.i18n._('upload image') + "</div>" + + "<input type=\"file\" name=\"file-upload\" id=\"file-upload\" size=\"26\" "+ + "onchange=\"return ajaxFileUpload($('#image-url'));\"/><br>" + + "<img id=\"loading\" src=\"/content/images/indicator.gif\" style=\"display:none;\"/>"; + + // The default text that appears in the dialog input box when entering + // links. + var imageDefaultText = "http://"; + var linkDefaultText = "http://"; + + // The location of your button images relative to the base directory. + var imageDirectory = "images/"; + + // Some intervals in ms. These can be adjusted to reduce the control's load. + var previewPollInterval = 500; + var pastePollInterval = 100; + + // The link and title for the help button + var helpLink = "http://wmd-editor.com/"; + var helpHoverTitle = "WMD website"; + var helpTarget = "_blank"; + + // ------------------------------------------------------------------- + // END OF YOUR CHANGES + // ------------------------------------------------------------------- + + // A collection of the important regions on the page. + // Cached so we don't have to keep traversing the DOM. + wmd.PanelCollection = function(){ + this.buttonBar = doc.getElementById("wmd-button-bar"); + this.preview = doc.getElementById("previewer"); + this.output = doc.getElementById("wmd-output"); + this.input = doc.getElementById("editor"); + }; + + // This PanelCollection object can't be filled until after the page + // has loaded. + wmd.panels = undefined; + + // 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 + + // Returns true if the DOM element is visible, false if it's hidden. + // Checks if display is anything other than none. + util.isVisible = function (elem) { + + if (window.getComputedStyle) { + // Most browsers + return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none"; + } + else if (elem.currentStyle) { + // IE + return elem.currentStyle["display"] !== "none"; + } + }; + + + // Adds a listener callback to a DOM element which is fired on a specified + // event. + util.addEvent = function(elem, event, listener){ + if (elem.attachEvent) { + // IE only. The "on" is mandatory. + elem.attachEvent("on" + event, listener); + } + else { + // Other browsers. + elem.addEventListener(event, listener, false); + } + }; + + + // Removes a listener callback from a DOM element which is fired on a specified + // event. + util.removeEvent = function(elem, event, listener){ + if (elem.detachEvent) { + // IE only. The "on" is mandatory. + elem.detachEvent("on" + event, listener); + } + else { + // Other browsers. + elem.removeEventListener(event, listener, false); + } + }; + + // Converts \r\n and \r to \n. + util.fixEolChars = function(text){ + text = text.replace(/\r\n/g, "\n"); + text = text.replace(/\r/g, "\n"); + return text; + }; + + // Extends a regular expression. Returns a new RegExp + // using pre + regex + post as the expression. + // Used in a few functions where we have a base + // expression and we want to pre- or append some + // conditions to it (e.g. adding "$" to the end). + // The flags are unchanged. + // + // regex is a RegExp, pre and post are strings. + util.extendRegExp = function(regex, pre, post){ + + if (pre === null || pre === undefined) + { + pre = ""; + } + if(post === null || post === undefined) + { + post = ""; + } + + var pattern = regex.toString(); + var flags; + + // Replace the flags with empty space and store them. + pattern = pattern.replace(/\/([gim]*)$/, ""); + flags = re.$1; + + // Remove the slash delimiters on the regular expression. + pattern = pattern.replace(/(^\/|\/$)/g, ""); + pattern = pre + pattern + post; + + return new re(pattern, flags); + } + + + // Sets the image for a button passed to the WMD editor. + // Returns a new element with the image attached. + // Adds several style properties to the image. + util.createImage = function(img){ + + var imgPath = imageDirectory + img; + + var elem = doc.createElement("img"); + elem.className = "wmd-button"; + elem.src = imgPath; + + return elem; + }; + + + // 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. + // makeLinkMarkdown: The function which is executed when the prompt is dismissed, either via OK or Cancel + util.prompt = function(text, defaultInputText, makeLinkMarkdown){ + + // These variables need to be declared at this level since they are used + // in multiple functions. + var dialog; // The dialog box. + var background; // The background beind the dialog box. + var input; // The text box where you enter the hyperlink. + var type = 0; + // The dialog box type(0: Link, 1: Image) + if(arguments.length == 4) + type = arguments[3]; + + 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://http://', 'http://'); + text = text.replace('http://https://', 'https://'); + text = text.replace('http://ftp://', 'ftp://'); + + if (text.indexOf('http://') === -1 && text.indexOf('ftp://') === -1) { + text = 'http://' + text; + } + } + + dialog.parentNode.removeChild(dialog); + background.parentNode.removeChild(background); + makeLinkMarkdown(text); + return false; + }; + + // Creates the background behind the hyperlink text entry box. + // Most of this has been moved to CSS but the div creation and + // browser-specific hacks remain here. + var createBackground = function(){ + + background = doc.createElement("div"); + background.className = "wmd-prompt-background"; + style = background.style; + style.position = "absolute"; + style.top = "0"; + + style.zIndex = "1000"; + + // Some versions of Konqueror don't support transparent colors + // so we make the whole window transparent. + // + // Is this necessary on modern konqueror browsers? + if (global.isKonqueror){ + style.backgroundColor = "transparent"; + } + else if (global.isIE){ + style.filter = "alpha(opacity=50)"; + } + else { + style.opacity = "0.5"; + } + + var pageSize = position.getPageSize(); + style.height = pageSize[1] + "px"; + + if(global.isIE){ + style.left = doc.documentElement.scrollLeft; + style.width = doc.documentElement.clientWidth; + } + else { + style.left = "0"; + style.width = "100%"; + } + + doc.body.appendChild(background); + }; + + // 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"); + form.onsubmit = function(){ return close(false); }; + style = form.style; + 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"); + if(type == 1) + input.id = "image-url"; + input.type = "text"; + input.value = defaultInputText; + style = input.style; + style.display = "block"; + style.width = "80%"; + style.marginLeft = style.marginRight = "auto"; + form.appendChild(input); + + // The upload file input + if(type == 1){ + var upload = doc.createElement("div"); + upload.innerHTML = uploadImageHTML; + upload.style.padding = "5px"; + form.appendChild(upload); + } + + // 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"; + + // The order of these buttons is different on macs. + if (/mac/.test(nav.platform.toLowerCase())) { + form.appendChild(cancelButton); + form.appendChild(okButton); + } + else { + 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(global.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"; + + }; + + createBackground(); + + // Why is this in a zero-length timeout? + // Is it working around a browser bug? + top.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); + }; + + + // UNFINISHED + // The assignment in the while loop makes jslint cranky. + // I'll change it to a better loop later. + position.getTop = function(elem, isInner){ + var result = elem.offsetTop; + if (!isInner) { + while (elem = elem.offsetParent) { + result += elem.offsetTop; + } + } + return result; + }; + + position.getHeight = function (elem) { + return elem.offsetHeight || elem.scrollHeight; + }; + + position.getWidth = function (elem) { + return elem.offsetWidth || elem.scrollWidth; + }; + + position.getPageSize = function(){ + + var scrollWidth, scrollHeight; + var innerWidth, innerHeight; + + // It's not very clear which blocks work with which browsers. + if(self.innerHeight && self.scrollMaxY){ + scrollWidth = doc.body.scrollWidth; + scrollHeight = self.innerHeight + self.scrollMaxY; + } + else if(doc.body.scrollHeight > doc.body.offsetHeight){ + scrollWidth = doc.body.scrollWidth; + scrollHeight = doc.body.scrollHeight; + } + else{ + scrollWidth = doc.body.offsetWidth; + scrollHeight = doc.body.offsetHeight; + } + + if(self.innerHeight){ + // Non-IE browser + innerWidth = self.innerWidth; + innerHeight = self.innerHeight; + } + else if(doc.documentElement && doc.documentElement.clientHeight){ + // Some versions of IE (IE 6 w/ a DOCTYPE declaration) + innerWidth = doc.documentElement.clientWidth; + innerHeight = doc.documentElement.clientHeight; + } + else if(doc.body){ + // Other versions of IE + innerWidth = doc.body.clientWidth; + innerHeight = doc.body.clientHeight; + } + + var maxWidth = Math.max(scrollWidth, innerWidth); + var maxHeight = Math.max(scrollHeight, innerHeight); + return [maxWidth, maxHeight, innerWidth, innerHeight]; + }; + + // Watches the input textarea, polling at an interval and runs + // a callback function if anything has changed. + wmd.inputPoller = function(callback, interval){ + + var pollerObj = this; + var inputArea = wmd.panels.input; + + // 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(){ + // previewPollInterval is set at the top of the namespace. + killHandle = top.setInterval(doTickCallback, interval); + }; + + this.destroy = function(){ + top.clearInterval(killHandle); + }; + + assignInterval(); + }; + + // Handles pushing and popping TextareaStates for undo/redo commands. + // I should rename the stack variables to list. + wmd.undoManager = function(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 (!global.isIE || mode != "moving") { + timer = top.setTimeout(refreshState, 1); + } + else { + inputStateObj = null; + } + }; + + var refreshState = function(){ + inputStateObj = new wmd.TextareaState(); + poller.tick(); + timer = undefined; + }; + + this.setCommandMode = function(){ + mode = "command"; + saveState(); + timer = top.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 wmd.TextareaState(); + undoStack[--stackPtr].restore(); + + if (callback) { + callback(); + } + } + } + + mode = "none"; + wmd.panels.input.focus(); + refreshState(); + }; + + // Redo an action. + this.redo = function(){ + + if (undoObj.canRedo()) { + + undoStack[++stackPtr].restore(); + + if (callback) { + callback(); + } + } + + mode = "none"; + wmd.panels.input.focus(); + refreshState(); + }; + + // Push the input area state to the stack. + var saveState = function(){ + + var currState = inputStateObj || new wmd.TextareaState(); + + 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 (top.event) { + top.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(wmd.panels.input, "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 (global.isIE || (inputStateObj && inputStateObj.text != wmd.panels.input.value)) { + if (timer == undefined) { + mode = "paste"; + saveState(); + refreshState(); + } + } + }; + + // pastePollInterval is specified at the beginning of this namespace. + poller = new wmd.inputPoller(handlePaste, pastePollInterval); + + util.addEvent(wmd.panels.input, "keydown", handleCtrlYZ); + util.addEvent(wmd.panels.input, "keydown", handleModeChange); + + util.addEvent(wmd.panels.input, "mousedown", function(){ + setMode("moving"); + }); + wmd.panels.input.onpaste = handlePaste; + wmd.panels.input.ondrop = handlePaste; + }; + + var init = function(){ + setEventHandlers(); + refreshState(); + saveState(); + }; + + this.destroy = function(){ + if (poller) { + poller.destroy(); + } + }; + + init(); + }; + + // 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 wmd.TextareaState(); + + 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 noCleanup = button.textOp(chunks, fixupInputArea); + + if(!noCleanup) { + fixupInputArea(); + } + + } + + if (button.execute) { + button.execute(editObj); + } + }; + + var setUndoRedoButtonStates = function(){ + if(undoMgr){ + setupButton(document.getElementById("wmd-undo-button"), undoMgr.canUndo()); + setupButton(document.getElementById("wmd-redo-button"), undoMgr.canRedo()); + } + }; + + var setupButton = function(button, isEnabled) { + + var normalYShift = "0px"; + var disabledYShift = "-20px"; + var highlightYShift = "-40px"; + + if(isEnabled) { + button.style.backgroundPosition = button.XShift + " " + normalYShift; + button.onmouseover = function(){ + this.style.backgroundPosition = this.XShift + " " + highlightYShift; + }; + + button.onmouseout = function(){ + this.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(global.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.style.backgroundPosition = button.XShift + " " + disabledYShift; + button.onmouseover = button.onmouseout = button.onclick = function(){}; + } + } + + var makeSpritedButtonRow = function(){ + + var buttonBar = document.getElementById("wmd-button-bar"); + var normalYShift = "0px"; + var disabledYShift = "-20px"; + var highlightYShift = "-40px"; + + var buttonRow = document.createElement("ul"); + buttonRow.id = "wmd-button-row"; + buttonRow = buttonBar.appendChild(buttonRow); + + + var boldButton = document.createElement("li"); + boldButton.className = "wmd-button"; + boldButton.id = "wmd-bold-button"; + boldButton.title = toolbar_strong_label; + boldButton.XShift = "0px"; + boldButton.textOp = command.doBold; + setupButton(boldButton, true); + buttonRow.appendChild(boldButton); + + var italicButton = document.createElement("li"); + italicButton.className = "wmd-button"; + italicButton.id = "wmd-italic-button"; + italicButton.title = toolbar_emphasis_label; + italicButton.XShift = "-20px"; + italicButton.textOp = command.doItalic; + setupButton(italicButton, true); + buttonRow.appendChild(italicButton); + + var spacer1 = document.createElement("li"); + spacer1.className = "wmd-spacer"; + spacer1.id = "wmd-spacer1"; + buttonRow.appendChild(spacer1); + + var linkButton = document.createElement("li"); + linkButton.className = "wmd-button"; + linkButton.id = "wmd-link-button"; + linkButton.title = toolbar_hyperlink_label; + linkButton.XShift = "-40px"; + linkButton.textOp = function(chunk, postProcessing){ + return command.doLinkOrImage(chunk, postProcessing, false); + }; + setupButton(linkButton, true); + buttonRow.appendChild(linkButton); + + var quoteButton = document.createElement("li"); + quoteButton.className = "wmd-button"; + quoteButton.id = "wmd-quote-button"; + quoteButton.title = toolbar_blockquote_label; + quoteButton.XShift = "-60px"; + quoteButton.textOp = command.doBlockquote; + setupButton(quoteButton, true); + buttonRow.appendChild(quoteButton); + + var codeButton = document.createElement("li"); + codeButton.className = "wmd-button"; + codeButton.id = "wmd-code-button"; + codeButton.title = toolbar_code_label; + codeButton.XShift = "-80px"; + codeButton.textOp = command.doCode; + setupButton(codeButton, true); + buttonRow.appendChild(codeButton); + + var imageButton = document.createElement("li"); + imageButton.className = "wmd-button"; + imageButton.id = "wmd-image-button"; + imageButton.title = toolbar_image_label; + imageButton.XShift = "-100px"; + imageButton.textOp = function(chunk, postProcessing){ + return command.doLinkOrImage(chunk, postProcessing, true); + }; + setupButton(imageButton, true); + buttonRow.appendChild(imageButton); + + var spacer2 = document.createElement("li"); + spacer2.className = "wmd-spacer"; + spacer2.id = "wmd-spacer2"; + buttonRow.appendChild(spacer2); + + var olistButton = document.createElement("li"); + olistButton.className = "wmd-button"; + olistButton.id = "wmd-olist-button"; + olistButton.title = toolbar_numbered_label; + olistButton.XShift = "-120px"; + olistButton.textOp = function(chunk, postProcessing){ + command.doList(chunk, postProcessing, true); + }; + setupButton(olistButton, true); + buttonRow.appendChild(olistButton); + + var ulistButton = document.createElement("li"); + ulistButton.className = "wmd-button"; + ulistButton.id = "wmd-ulist-button"; + ulistButton.title = toolbar_bulleted_label; + ulistButton.XShift = "-140px"; + ulistButton.textOp = function(chunk, postProcessing){ + command.doList(chunk, postProcessing, false); + }; + setupButton(ulistButton, true); + buttonRow.appendChild(ulistButton); + + var headingButton = document.createElement("li"); + headingButton.className = "wmd-button"; + headingButton.id = "wmd-heading-button"; + headingButton.title = toolbar_heading_label; + headingButton.XShift = "-160px"; + headingButton.textOp = command.doHeading; + setupButton(headingButton, true); + buttonRow.appendChild(headingButton); + + var hrButton = document.createElement("li"); + hrButton.className = "wmd-button"; + hrButton.id = "wmd-hr-button"; + hrButton.title = toolbar_horizontal_label; + hrButton.XShift = "-180px"; + hrButton.textOp = command.doHorizontalRule; + setupButton(hrButton, true); + buttonRow.appendChild(hrButton); + + var spacer3 = document.createElement("li"); + spacer3.className = "wmd-spacer"; + spacer3.id = "wmd-spacer3"; + buttonRow.appendChild(spacer3); + + var undoButton = document.createElement("li"); + undoButton.className = "wmd-button"; + undoButton.id = "wmd-undo-button"; + undoButton.title = toolbar_undo_label; + undoButton.XShift = "-200px"; + undoButton.execute = function(manager){ + manager.undo(); + }; + setupButton(undoButton, true); + buttonRow.appendChild(undoButton); + + var redoButton = document.createElement("li"); + redoButton.className = "wmd-button"; + redoButton.id = "wmd-redo-button"; + redoButton.title = toolbar_redo_label; + if (/win/.test(nav.platform.toLowerCase())) { + redoButton.title = toolbar_redo_label; + } + else { + // mac and other non-Windows platforms + redoButton.title = $.i18n._('redo') + " - Ctrl+Shift+Z"; + } + redoButton.XShift = "-220px"; + redoButton.execute = function(manager){ + manager.redo(); + }; + setupButton(redoButton, true); + buttonRow.appendChild(redoButton); + /* + var helpButton = document.createElement("li"); + helpButton.className = "wmd-button"; + helpButton.id = "wmd-help-button"; + helpButton.XShift = "-240px"; + helpButton.isHelp = true; + + var helpAnchor = document.createElement("a"); + helpAnchor.href = helpLink; + helpAnchor.target = helpTarget + helpAnchor.title = helpHoverTitle; + helpButton.appendChild(helpAnchor); + + setupButton(helpButton, true); + buttonRow.appendChild(helpButton); + */ + setUndoRedoButtonStates(); + } + + var setupEditor = function(){ + + if (/\?noundo/.test(doc.location.href)) { + wmd.nativeUndo = true; + } + + if (!wmd.nativeUndo) { + undoMgr = new wmd.undoManager(function(){ + previewRefreshCallback(); + setUndoRedoButtonStates(); + }); + } + + makeSpritedButtonRow(); + + + var keyEvent = "keydown"; + if (global.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) { + + var keyCode = key.charCode || key.keyCode; + var keyCodeStr = String.fromCharCode(keyCode).toLowerCase(); + + // Bugfix for messed up DEL and . + if (keyCode === 46) { + keyCodeStr = ""; + } + if (keyCode === 190) { + keyCodeStr = "."; + } + + switch(keyCodeStr) { + case "b": + doClick(document.getElementById("wmd-bold-button")); + break; + case "i": + doClick(document.getElementById("wmd-italic-button")); + break; + case "l": + doClick(document.getElementById("wmd-link-button")); + break; + case ".": + doClick(document.getElementById("wmd-quote-button")); + break; + case "k": + doClick(document.getElementById("wmd-code-button")); + break; + case "g": + doClick(document.getElementById("wmd-image-button")); + break; + case "o": + doClick(document.getElementById("wmd-olist-button")); + break; + case "u": + doClick(document.getElementById("wmd-ulist-button")); + break; + case "h": + doClick(document.getElementById("wmd-heading-button")); + break; + case "r": + doClick(document.getElementById("wmd-hr-button")); + break; + case "y": + doClick(document.getElementById("wmd-redo-button")); + break; + case "z": + if(key.shiftKey) { + doClick(document.getElementById("wmd-redo-button")); + } + else { + doClick(document.getElementById("wmd-undo-button")); + } + break; + default: + return; + } + + + if (key.preventDefault) { + key.preventDefault(); + } + + if (top.event) { + top.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) { + fakeButton = {}; + fakeButton.textOp = command.doAutoindent; + doClick(fakeButton); + } + } + }); + + if (inputBox.form) { + var submitCallback = inputBox.form.onsubmit; + inputBox.form.onsubmit = function(){ + convertToHtml(); + if (submitCallback) { + return submitCallback.apply(this, arguments); + } + }; + } + }; + + // Convert the contents of the input textarea to HTML in the output/preview panels. + var convertToHtml = function(){ + + if (wmd.showdown) { + var markdownConverter = new wmd.showdown.converter(); + } + var text = inputBox.value; + + var callback = function(){ + inputBox.value = text; + }; + + if (!/markdown/.test(wmd.wmd_env.output.toLowerCase())) { + if (markdownConverter) { + inputBox.value = markdownConverter.makeHtml(text); + top.setTimeout(callback, 0); + } + } + return true; + }; + + + 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 = ""; + } + top.clearInterval(creationHandle); + }; + + init(); + }; + + // The input textarea state/contents. + // This is used to implement undo/redo by the undo manager. + wmd.TextareaState = function(){ + + // Aliases + var stateObj = this; + var inputArea = wmd.panels.input; + + this.init = function() { + + if (!util.isVisible(inputArea)) { + 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 && !global.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 (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 and set a flag + // which we check for here. + var range; + if(wmd.ieRetardedClick && wmd.ieCachedRange) { + range = wmd.ieCachedRange; + wmd.ieRetardedClick = false; + } + else { + range = 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; + } + + 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 wmd.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 (global.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(); + }; + + // before: contains all the text in the input box BEFORE the selection. + // after: contains all the text in the input box AFTER the selection. + wmd.Chunks = function(){ + }; + + // startRegex: a regular expression to find the start tag + // endRegex: a regular expresssion to find the end tag + wmd.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. + wmd.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; + } + }; + + + wmd.Chunks.prototype.skipLines = function(nLinesBefore, nLinesAfter, findExtraNewlines){ + + if (nLinesBefore === undefined) { + nLinesBefore = 1; + } + + if (nLinesAfter === undefined) { + nLinesAfter = 1; + } + + nLinesBefore++; + nLinesAfter++; + + var regexText; + var replacementText; + + this.selection = this.selection.replace(/(^\n*)/, ""); + this.startTag = this.startTag + re.$1; + this.selection = this.selection.replace(/(\n*$)/, ""); + this.endTag = this.endTag + re.$1; + this.startTag = this.startTag.replace(/(^\n*)/, ""); + this.before = this.before + re.$1; + this.endTag = this.endTag.replace(/(\n*$)/, ""); + this.after = this.after + re.$1; + + if (this.before) { + + regexText = replacementText = ""; + + while (nLinesBefore--) { + regexText += "\\n?"; + replacementText += "\n"; + } + + if (findExtraNewlines) { + regexText = "\\n*"; + } + this.before = this.before.replace(new re(regexText + "$", ""), 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); + } + }; + + // 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+$/, ""); + }; + + command.doBold = function(chunk, postProcessing){ + return command.doBorI(chunk, postProcessing, 2, "strong text"); + }; + + command.doItalic = function(chunk, postProcessing){ + return command.doBorI(chunk, postProcessing, 1, "emphasized text"); + }; + + // chunk: The selected region that will be enclosed with */** + // nStars: 1 for italics, 2 for bold + // insertText: If you just click the button without highlighting text, this gets inserted + command.doBorI = function(chunk, postProcessing, nStars, insertText){ + + // Get rid of whitespace and fixup newlines. + chunk.trimWhitespace(); + chunk.selection = chunk.selection.replace(/\n{2,}/g, "\n"); + + // Look for stars before and after. Is the chunk already marked up? + chunk.before.search(/(\**$)/); + 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){ + + 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) { + // add forth param to identify image window + util.prompt(imageDialogText, imageDefaultText, makeLinkMarkdown, 1); + } + else { + util.prompt(linkDialogText, linkDefaultText, makeLinkMarkdown); + } + return true; + } + }; + + util.makeAPI = function(){ + wmd.wmd = {}; + wmd.wmd.editor = wmd.editor; + wmd.wmd.previewManager = wmd.previewManager; + }; + + util.startEditor = function(){ + + if (wmd.wmd_env.autostart === false) { + util.makeAPI(); + return; + } + + var edit; // The editor (buttons + input + outputs) - the main object. + var previewMgr; // The preview manager. + + // Fired after the page has fully loaded. + var loadListener = function(){ + + wmd.panels = new wmd.PanelCollection(); + + previewMgr = new wmd.previewManager(); + var previewRefreshCallback = previewMgr.refresh; + + edit = new wmd.editor(previewRefreshCallback); + + previewMgr.refresh(true); + + }; + + util.addEvent(top, "load", loadListener); + }; + + wmd.previewManager = function(){ + + 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 wmd.inputPoller(listener, previewPollInterval); + }; + + var getDocScrollTop = function(){ + + var result = 0; + + if (top.innerHeight) { + result = top.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 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) { + top.clearTimeout(timeout); + timeout = undefined; + } + + if (startType !== "manual") { + + var delay = 0; + + if (startType === "delayed") { + delay = elapsedTime; + } + + if (delay > maxDelay) { + delay = maxDelay; + } + timeout = top.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; + wmd.panels.output.readOnly = true; + } + // 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) { + wmd.panels.preview.innerHTML = text; + } + + setPanelScrollTops(); + + if (isFirstTimeFilled) { + isFirstTimeFilled = false; + return; + } + + var fullTop = position.getTop(wmd.panels.input) - getDocScrollTop(); + + if (global.isIE) { + top.setTimeout(function(){ + top.scrollBy(0, fullTop - emptyTop); + }, 0); + } + else { + top.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(); + }; + + // When making a list, hitting shift-enter will put your cursor on the next line + // at the current indent level. + command.doAutoindent = function(chunk, postProcessing){ + + 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$/, "\n\n"); + + if(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]+.*\n$/.test(chunk.before)){ + if(command.doList){ + command.doList(chunk); + } + } + if(/(\n|^)[ ]{0,3}>[ \t]+.*\n$/.test(chunk.before)){ + if(command.doBlockquote){ + command.doBlockquote(chunk); + } + } + if(/(\n|^)(\t|[ ]{4,}).*\n$/.test(chunk.before)){ + if(command.doCode){ + command.doCode(chunk); + } + } + }; + + command.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|>)+$/ ,""); + chunk.selection = chunk.selection || "Blockquote"; + + if(chunk.before){ + chunk.before = chunk.before.replace(/\n?$/,"\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.wmd_env.lineLength - 2); + chunk.selection = chunk.selection.replace(/^/gm, "> "); + replaceBlanksInTags(true); + chunk.skipLines(); + } + 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){ + + 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$/.test(chunk.before)){ + nLinesBack = 0; + } + if(/^\n(\t|[ ]{4,})/.test(chunk.after)){ + nLinesForward = 0; + } + + chunk.skipLines(nLinesBack, nLinesForward); + + if(!chunk.selection){ + chunk.startTag = " "; + chunk.selection = "enter code here"; + } + else { + if(/^[ ]{0,3}\S/m.test(chunk.selection)){ + chunk.selection = chunk.selection.replace(/^/gm, " "); + } + else{ + chunk.selection = chunk.selection.replace(/^[ ]{4}/gm, ""); + } + } + } + else{ + // Use backticks (`) to delimit the code block. + + chunk.trimWhitespace(); + chunk.findTags(/`/, /`/); + + if(!chunk.startTag && !chunk.endTag){ + chunk.startTag = chunk.endTag="`"; + if(!chunk.selection){ + chunk.selection = "enter code here"; + } + } + else if(chunk.endTag && !chunk.startTag){ + chunk.before += chunk.endTag; + chunk.endTag = ""; + } + else{ + chunk.startTag = chunk.endTag=""; + } + } + }; + + command.doList = function(chunk, postProcessing, isNumberedList){ + + // These are identical except at the very beginning and end. + // Should probably use the regex extension function to make this clearer. + var previousItemsRegex = /(\n|^)(([ ]{0,3}([*+-]|\d+[.])[ \t]+.*)(\n.+|\n{2,}([*+-].*|\d+[.])[ \t]+.*|\n{2,}[ \t]+\S.*)*)\n*$/; + 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.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.$1; + } + nLinesUp = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0; + return getPrefixedItem(itemText); + }); + + if(!chunk.selection){ + chunk.selection = "List item"; + } + + var prefix = getItemPrefix(); + + var nLinesDown = 1; + + chunk.after = chunk.after.replace(nextItemsRegex, + function(itemText){ + nLinesDown = /[^\n]\n\n[^\n]/.test(itemText) ? 1 : 0; + return getPrefixedItem(itemText); + }); + + chunk.trimWhitespace(true); + chunk.skipLines(nLinesUp, nLinesDown, true); + chunk.startTag = prefix; + var spaces = prefix.replace(/./g, " "); + command.wrap(chunk, wmd.wmd_env.lineLength - spaces.length); + chunk.selection = chunk.selection.replace(/\n/g, "\n" + spaces); + + }; + + command.doHeading = function(chunk, postProcessing){ + + // Remove leading/trailing whitespace and reduce internal spaces to single spaces. + chunk.selection = chunk.selection.replace(/\s+/g, " "); + chunk.selection = chunk.selection.replace(/(^\s+|\s+$)/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 = "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.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 > wmd.wmd_env.lineLength){ + len = wmd.wmd_env.lineLength; + } + chunk.endTag = "\n"; + while(len--){ + chunk.endTag += headerChar; + } + } + }; + + command.doHorizontalRule = function(chunk, postProcessing){ + chunk.startTag = "----------\n"; + chunk.selection = ""; + chunk.skipLines(2, 1, true); + } +}; + + +Attacklab.wmd_env = {}; +Attacklab.account_options = {}; +Attacklab.wmd_defaults = {version:1, output:"Markdown", lineLength:40, delayLoad:false}; + +if(!Attacklab.wmd) +{ + Attacklab.wmd = function() + { + Attacklab.loadEnv = function() + { + var mergeEnv = function(env) + { + if(!env) + { + return; + } + + for(var key in env) + { + Attacklab.wmd_env[key] = env[key]; + } + }; + + mergeEnv(Attacklab.wmd_defaults); + mergeEnv(Attacklab.account_options); + mergeEnv(top["wmd_options"]); + Attacklab.full = true; + + var defaultButtons = "bold italic link blockquote code image ol ul heading hr"; + Attacklab.wmd_env.buttons = Attacklab.wmd_env.buttons || defaultButtons; + }; + Attacklab.loadEnv(); + + }; + + Attacklab.wmd(); + Attacklab.wmdBase(); + Attacklab.Util.startEditor(); +}; + |