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public/vendor/pagedown/Markdown.Editor.js view on Meta::CPAN
nLinesBefore++;
nLinesAfter++;
var regexText;
var replacementText;
// chrome bug ... documented at: http://meta.stackoverflow.com/questions/63307/blockquote-glitch-in-editor-in-chrome-6-and-7/65985#65985
if (navigator.userAgent.match(/Chrome/)) {
"X".match(/()./);
}
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);
}
};
// end of Chunks
// A collection of the important regions on the page.
// Cached so we don't have to keep traversing the DOM.
// Also holds ieCachedRange and ieCachedScrollTop, where necessary; working around
// this issue:
// 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.
function PanelCollection(postfix) {
this.buttonBar = doc.getElementById("wmd-button-bar" + postfix);
this.preview = doc.getElementById("wmd-preview" + postfix);
this.input = doc.getElementById("wmd-input" + postfix);
};
// 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) {
public/vendor/pagedown/Markdown.Editor.js view on Meta::CPAN
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.
public/vendor/pagedown/Markdown.Editor.js view on Meta::CPAN
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;
}
}
}
else {
image.style.backgroundPosition = button.XShift + " " + disabledYShift;
button.onmouseover = button.onmouseout = button.onclick = function () { };
}
}
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) {
public/vendor/pagedown/Markdown.Editor.js view on Meta::CPAN
// 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, "$1\\").substr(1);
var linkDef = " [999]: " + properlyEncoded(link);
var num = that.addLinkDef(chunk, linkDef);
chunk.startTag = isImage ? "![" : "[";
chunk.endTag = "][" + num + "]";
if (!chunk.selection) {
if (isImage) {
chunk.selection = that.getString("imagedescription");
}
else {
chunk.selection = that.getString("linkdescription");
}
}
}
postProcessing();
};
background = ui.createBackground();
if (isImage) {
if (!this.hooks.insertImageDialog(linkEnteredCallback))
ui.prompt(this.getString("imagedialog"), imageDefaultText, linkEnteredCallback);
}
else {
ui.prompt(this.getString("linkdialog"), linkDefaultText, linkEnteredCallback);
}
return true;
}
};
// When making a list, hitting shift-enter will put your cursor on the next line
// at the current indent level.
commandProto.doAutoindent = function (chunk, postProcessing) {
var commandMgr = this,
fakeSelection = false;
chunk.before = chunk.before.replace(/(\n|^)[ ]{0,3}([*+-]|\d+[.])[ \t]*\n$/, "\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*)$/,
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