I want that my menu stays open when I refresh the page. I use cookies for that.
But it only works on IE. On chrome and firefox it isnt working.
$(document).ready(function () {
var $body = $('body'),
$btn = $('#push-menu-toggle'),
$menu = $('#push-menu'),
menu_state = $.cookie('my_cookie_name'),
viewportX = $(window).width();
var cookieValue = $.cookie('my_cookie_name');
if (cookieValue === 'close') {
$body.addClass('small-menu');
} else {
$body.removeClass('small-menu');
}
$.cookie('my_cookie_name', menu_state);
$('.cookie-is').find('em').remove();
$('.cookie-is').prepend().html('<em>' + $.cookie('my_cookie_name') + '</em>');
$btn.click(function () {
$body.toggleClass('small-menu');
$.removeCookie('my_cookie_name');
if ($body.hasClass('small-menu')) {
menu_state = 'close';
} else {
menu_state = 'open';
}
$.cookie('my_cookie_name', menu_state);
$('.cookie-is').find('em').remove();
$('.cookie-is').prepend().html('<em>' + $.cookie('my_cookie_name') + '</em>');
});
});
http://codepen.io/sebastiaann/pen/KzBqEN
Related
I tried modifying the plugin to show a modal popup when a website visitor leaves the page using haschange, but it still doesn't work. How to get it to work? I need help fixing it
$(document).ready(function(e) {
var exit_intent_popup_hash = 'b'
window.location.hash = exit_intent_popup_hash
window.history.back()
setTimeout(function() {
window.history.forward()
$('.fel-modal-parent-wrapper').each(function() {
var $this = $(this);
var tmp_id = $this.attr('id');
var popup_id = tmp_id.replace('-overlay', '');
var trigger_on = $this.data('trigger-on');
var exit_intent = $this.data('exit-intent');
if ('automatic' == trigger_on) {
if ('yes' == exit_intent && FelModalPopup_canShow(popup_id)) {
$(window).hashchange(function() {
if (window.location.hash !== `#${exit_intent_popup_hash}`) {
FelModalPopup_show(popup_id);
window.history.forward()
}
}, false);
}
}
});
}, 500);
});
I have a open function that once triggered, simply plays video in a dedicated panel.
This function can be triggered in two ways - one with a click and another one with a page load (window load) with url that contains a valid anchor tag.
They all work fine but some codes of the window load handler are repetitive and I'm not too sure how I can keep this DRY.
Please take a look and point me in some directions on how I can write this better.
I commented in open function which is for which.
$.videoWatch.prototype = {
init: function() {
this.$openLinks = this.$element.find(".open");
this.$closeLinks = this.$element.find(".close");
this.open();
this.close();
},
_getContent: function(element) {
var $parent = element.parent(),
id = element.attr('href').substring(1),
title = $parent.data('title'),
desc = $parent.data('desc');
return {
title: title,
desc: desc,
id: id
}
},
open: function() {
var self = this;
//open theatre with window load with #hash id
window.onload = function() {
var hash = location.hash;
var $a = $('a[href="' + hash + '"]'),
content = self._getContent($a),
$li = $a.parents("li"),
$theatreVideo = $(".playing"),
$theatreTitle = $(".theatre-title"),
$theatreText = $(".theatre-text");
$(".theatre").attr('id', content.id);
$theatreTitle.text(content.title);
$theatreText.text(content.desc);
if ($theatreText.text().length >= 90) {
$(".theatre-text").css({
'overflow': 'hidden',
'max-height': '90px',
});
$moreButton.insertAfter($theatreText);
}
$a.parent().addClass("active");
$(".theatre").insertAfter($li);
$(".theatre").slideDown('fast', scrollToTheatre);
oldIndex = $li.index();
}
//open theatre with click event
self.$openLinks.on("click", function(e) {
// e.preventDefault();
if (curID == $(this).parent().attr("id")) {
$("figure").removeClass("active");
$("button.more").remove();
$(".theatre").slideUp('fast');
$('.playing').attr("src", "");
removeHash();
oldIndex = -1;
curID = "";
return false
} else {
curID = $(this).parent().attr("id");
}
var $a = $(this),
content = self._getContent($a),
$li = $a.parents("li"),
$theatreVideo = $(".playing"),
$theatreTitle = $(".theatre-title"),
$theatreText = $(".theatre-text");
$(".theatre").attr('id', content.id);
$theatreTitle.text(content.title);
$theatreText.text(content.desc);
if ($theatreText.text().length >= 90) {
$(".theatre-text").css({
'overflow': 'hidden',
'max-height': '90px',
});
$moreButton.insertAfter($theatreText);
}
if (!($li.index() == oldIndex)) {
$("figure").removeClass("active");
$(".theatre").hide(function(){
$a.parent().addClass("active");
$(".theatre").insertAfter($li);
$(".theatre").slideDown('fast', scrollToTheatre);
oldIndex = $li.index();
});
} else {
$(".theatre").insertAfter($li);
scrollToTheatre();
$("figure").removeClass("active");
$a.parent().addClass("active");
}
});
},
...
Simplified and refactored open method:
open: function() {
var self = this;
var serviceObj = {
theatreVideo : $(".playing"),
theatre: $(".theatre"),
theatreTitle : $(".theatre-title"),
theatreText : $(".theatre-text"),
setTheatreContent: function(content){
this.theatre.attr('id', content.id);
this.theatreTitle.text(content.title);
this.theatreText.text(content.desc);
if (this.theatreText.text().length >= 90) {
this.theatreText.css({
'overflow': 'hidden',
'max-height': '90px',
});
$moreButton.insertAfter(this.theatreText);
}
},
activateTeatre: function(a, li){
a.parent().addClass("active");
this.theatre.insertAfter(li);
this.theatre.slideDown('fast', scrollToTheatre);
oldIndex = li.index();
}
};
//open theatre with window load with #hash id
window.onload = function() {
var hash = location.hash;
var $a = $('a[href="' + hash + '"]'),
content = self._getContent($a),
$li = $a.parents("li");
serviceObj.setTheatreContent(content);
serviceObj.activateTeatre($a, $li);
}
//open theatre with click event
self.$openLinks.on("click", function(e) {
// e.preventDefault();
if (curID == $(this).parent().attr("id")) {
$("figure").removeClass("active");
$("button.more").remove();
$(".theatre").slideUp('fast');
$('.playing').attr("src", "");
removeHash();
oldIndex = -1;
curID = "";
return false
} else {
curID = $(this).parent().attr("id");
}
var $a = $(this),
content = self._getContent($a),
$li = $a.parents("li");
serviceObj.setTheatreContent(content);
if (!($li.index() == oldIndex)) {
$("figure").removeClass("active");
$(".theatre").hide(function(){
serviceObj.activateTeatre($a, $li);
});
} else {
$(".theatre").insertAfter($li);
scrollToTheatre();
$("figure").removeClass("active");
$a.parent().addClass("active");
}
});
},
1st of all there are variables that don't depend on the input, you could pull them to the class (I'll show just one example, as you asked for directions):
init: function() {
this.$theatreVideo = $(".playing");
All the variables that do depend on the input, like $li could be moved to a function:
var $a = $(this),
$dependsOnA = self.dependsOnA($a);
self.actionDependsOnA($dependsOnA); // see below
function dependsOnA($a) {
return {
a: $a,
li: $a.parents("li"),
content: self._getContent($a)
}
}
Also the code that "repeats" can be moved to a function:
function actionDependsOnA($dependsOnA)
$(".theatre").attr('id', $dependsOnA.content.id);
$theatreTitle.text($dependsOnA.content.title);
$theatreText.text($dependsOnA.content.desc);
}
Please check it. Here is the Fiddle: http://jsfiddle.net/4467yz37/
When I do click in the Link it works good (Show and Hide). The only problem existing it's when I want to hide the Items section doing click outside the Link and the Items (that is in the Body except in the Items section).
Here is the JavaScript code:
(function(document) {
var alterNav = function() {
var item = document.querySelector('.items');
var link = document.querySelector('.clickme');
var theClass = 'display';
var itemIsOpened = false;
if (link) {
link.addEventListener('click', function (event) {
event.preventDefault();
if (!itemIsOpened) {
itemIsOpened = true;
addClass(item, theClass);
} else {
itemIsOpened = false;
removeClass(item, theClass);
}
});
}
};
var addClass = function (element, className) {
if (!element) {
return;
}
element.className = element.className.replace(/\s+$/gi, '') + ' ' + className;
};
var removeClass = function(element, className) {
if (!element) {
return;
}
element.className = element.className.replace(className, '');
};
alterNav();
})(document);
I try to solve it creating another variable with the tag Html or Body and alter the JS code, but it still don't working good: http://jsfiddle.net/g1d321rv/2/
var link = document.querySelector('body');
I manipulated your code a bit. Do you use jquery? I assumend that you are not using jquery.Here jsfiddle :
http://jsfiddle.net/9fpf07mt/
window.onclick = function (e) {
console.log(e);
if (!itemIsOpened) {
if (e.target == link) {
itemIsOpened = true;
addClass(item, theClass);
}
} else {
if (!isChild(e.target, item)) {
itemIsOpened = false;
removeClass(item, theClass);
}
}
};
edit for last request:
link.addEventListener('click', function (event) {
event.preventDefault();
});
I'm having a few problems with my portfolio - if/when viewed on an iPad in vertical orientation, scrolling down seems to pull you back to the top. I'm not entirely sure if this is a css/js issue, or something else entirely. Resizing the browser on my computer to the same dimensions doesn't appear to replicate the problem so.. at a bit of a loss.
Has anyone encountered this issue?
Problem site in question:
http://alexandermasters.com/portfolio/weddings/20110827
This is an edited version of the theme template (template was designed strictly to scroll horizontally) but on the pages with the template untouched (http://alexandermasters.com/portfolio/travel/20100928) the issue persists.
Suggestions?
Edit: the offending code (within main.js) is below:
;(function ($, window, $window, $document, isUndefined) {
$(function () {
var $html = $('html'),
$main = $('#main'),
$header = $('#header'),
$footer = $('#footer'),
// Components
$sidebar = $('.sidebar'),
$keyRight = $('#key-right'),
$keyLeft = $('#key-left'),
$navTip = $('.nav-tip'),
$scrollContainer = $('.scroll-container'),
mobileNav,
// Functions
getHorizontalPageHeight,
pageResizer,
// Gloal variables
allowUpscale = $html.is('.upscale');
if (iPadWithIOS4()) {
$html.addClass('ipad-ios4');
}
getHorizontalPageHeight = function () {
return $window.height() - $header.outerHeight() - $footer.outerHeight();
};
/**
* Fixes iOS 7.0~7.0.2 Safari bug. Safari reports $window.height() to be 692, which is not correct.
* Also there's a permanent scrollbar which allows users to scroll 20px, to prevent that we just scroll back to the
* top. This is only required in landscape mode.
*/
if (!!navigator.platform.match(/iPad/) && $html.is('.horizontal-page')) {
var _getHorizontalPageHeight = getHorizontalPageHeight,
IOS7PreventVerticalScroll = function () {
if ($(window).scrollTop() > 0) {
$('body').animate({ scrollTop: 0 }, 200);
}
};
getHorizontalPageHeight = function () {
if ($window.height() == 692) {
return window.innerHeight - $header.outerHeight() - $footer.outerHeight();
}
return _getHorizontalPageHeight();
};
$document.on('scroll', _.debounce(IOS7PreventVerticalScroll, 100));
$window.on('orientationchange.ios7-safari-bug.fluxus', function () {
setTimeout(function () {
if ($window.height() == 692) {
IOS7PreventVerticalScroll();
}
}, 200);
});
}
$('.horizontal-page').each(function () {
var resizer = function () {
var windowWidth = $window.width(),
windowHeight = $window.height(),
// The header is position:fixed we have to calculate the offset for main page dynamically.
headerHeight = $header.outerHeight();
footerHeight = $footer.outerHeight();
// If we are on a small screen
if (windowWidth <= 480) {
if ($html.is('.no-scroll')) {
$main.css({
height: windowHeight - headerHeight,
top: 0
});
} else {
$main.css({
height: 'auto',
top: 0
});
}
} else {
$main.css({
height: getHorizontalPageHeight(),
top: headerHeight
});
}
};
$window.on('resize.horizontal-page.fluxus', _.debounce(resizer));
resizer();
$window.on('orientationchange.horizontal-page.fluxus', function () {
setTimeout(resizer, 10);
});
$main.transition({
opacity: 1
}, 100);
});
/**
* General size adjustments on window resize.
*/
pageResizer = function () {
/**
* Update tinyscrollbar values.
*/
$scrollContainer.each(function () {
var $t = $(this),
tsb = $t.data('tsb');
$t.find('.scrollbar, .track').css('height', $t.height());
tsb && tsb.update();
});
if ($window.width() <= 768) {
// Initialize mobile menu only if we have a small sceen size.
if (!mobileNav) {
// Make mobile menu item array.
var $siteNavigation = $('.site-navigation'),
$mobileNavItems = $siteNavigation.find('a').filter(function () {
var $t = $(this),
level = $t.parents('ul').length;
$t.data('level', level);
if (level == 1) {
return true;
} else {
if ($t.closest('.current-menu-item, .current_page_ancestor').length) {
return true;
}
}
return false;
});
/**
* Initialize mobile menu.
*/
mobileNav = new MobileNav($mobileNavItems, {
openButtonTitle: $siteNavigation.data('menu'),
active: $siteNavigation.find('.current-menu-item > a')
});
}
}
/**
* Trigger vertical center plugin.
*/
setTimeout(function () {
$('.js-vertical-center').verticalCenter();
}, 100);
};
$window.on('resize.page-resizer.fluxus', _.debounce(pageResizer));
pageResizer();
/**
* Arrows and mousewheel navigation plugin.
*/
globalNav = new Navigation({
onSetItems: function () {
this.$items.length && $navTip.show();
}
});
/**
* Full page slider
*/
$('.slider').each(function () {
var $slider = $(this),
slider;
$slider.fluxusSlider({
onNextSlide: function () {
globalNav.options.onNextItem();
},
onPreviousSlide: function () {
globalNav.options.onPreviousItem();
}
});
slider = $slider.data('slider');
slider.slideCount > 1 && $navTip.show();
globalNav.disableKeyboard();
$keyRight.click(function (e) {
slider.next();
e && e.preventDefault();
});
$keyLeft.click(function (e) {
slider.previous();
e && e.preventDefault();
});
});
/**
* Appreciate plugin
*/
var $appreciate = $('.btn-appreciate');
$appreciate.appreciate();
/**
* Sharrre plugin
*/
$('#sharrre-footer').each(function () {
var $el = $(this),
services = {},
buttonsTitle = $el.data('buttons-title');
if (!$el.data('services')) {
return;
}
// retrieve social networks from DOM element.
$.each($el.data('services').split(','), function () {
services[this] = true;
});
$el.sharrre({
share: services,
buttonsTemplate: buttonsTitle ? '<b>' + buttonsTitle + '</b>' : '',
urlCurl: $el.data('curl'),
template: '<b class="share">{title}</b>' +
'<span class="counts">' +
(services.facebook ? '<b class="count-facebook">{facebook}</b>' : '') +
(services.twitter ?'<b class="count-twitter">{twitter}</b>' : '') +
(services.googlePlus ?'<b class="count-plus">{plus}</b>' : '') +
'</span>',
render: function(self, options) {
var html = this.template.replace('{title}', options.title);
html = html.replace('{facebook}', options.count.facebook);
html = html.replace('{twitter}', options.count.twitter);
html = html.replace('{plus}', options.count.googlePlus);
$(self.element).html(html);
$el.show();
}
});
});
$('#sharrre-project').each(function () {
var $el = $(this),
services = {},
buttonsTitle = $el.data('buttons-title');
if (!$el.data('services')) {
return;
}
// retrieve social networks from DOM element.
$.each($el.data('services').split(','), function () {
services[this] = true;
});
$el.sharrre({
share: services,
buttonsTemplate: buttonsTitle ? '<div class="arrow"></div><b>' + buttonsTitle + '</b>' : '',
urlCurl: $el.data('curl'),
template: '<span class="icon"></span><div class="box">' +
'<a class="share" href="#">{title}</a>' +
'<b class="count-total">{total}</b>' +
'</div>',
render: function(self, options) {
var total = options.shorterTotal ? self.shorterTotal(options.total) : options.total,
html = this.template.replace('{title}', options.title).replace('{total}', total);
$(self.element).html(html);
$el.css('display', 'inline-block');
},
afterLoadButtons: function () {
var index = 0,
$buttons = this.$el.find('.button'),
count = $buttons.each( function () {
index++;
$(this).addClass('button-' + index);
}).length;
this.$el.addClass('social-services-' + count);
}
});
});
/**
* Fixes menu issue, when popup is outside the screen.
*/
$('.site-navigation .has-children').hover(function () {
var $submenu = $(this).children('.sub-menu');
if ($submenu.length) {
// if popup is outside the screen, then align it by the right side of the screen.
if ($submenu.offset().left + $submenu.outerWidth() - $(document).scrollLeft() > $window.width()) {
$submenu.addClass('sub-menu-right');
}
}
}, function () {
$(this).children('.sub-menu').removeClass('sub-menu-right');
});
/**
* If our page has a horizontal layout.
*/
if ($html.is('.horizontal-page')) {
/**
* Enable tinyscrollbar plugin.
*/
$scrollContainer.tinyscrollbar({
axis: 'y'
});
/**
* Enable keyboard navigation.
*/
globalNav.options.onNextItem = function () {
$keyRight.addClass('flash');
setTimeout(function () {
$keyRight.removeClass('flash');
}, 200);
};
globalNav.options.onPreviousItem = function () {
$keyLeft.addClass('flash');
setTimeout(function () {
$keyLeft.removeClass('flash');
}, 200);
};
$keyRight.click(function (e) {
globalNav.nextItem();
e && e.preventDefault();
});
$keyLeft.click(function (e) {
globalNav.previousItem();
e && e.preventDefault();
});
}
According to Intheme, the author of the Fluxus Template, the following fix has been released that should solve the issue.
By modifying the following line of code in js/main.js
if (!!navigator.platform.match(/iPad/)) {
to this
if (!!navigator.platform.match(/iPad/) && $html.is('.horizontal-page')) {
I have been working on a formatting toolbar for a textarea, much like the toolbar for writing questions on this very site (with the bold, italic, underline buttons). The only difference is that I need the buttons to make the text actually bold not just add a bold tag. What I need is similar to the Instructables.com rich comment editor, or the newgrounds.com comment editor, or google docs. Does anyone have a clue how I can make some text in a textarea show up bold, italic, or underlined but keep the rest of it?
There are lots of implementations of javascript WYSIWYG eitors. FCKEditor (now CKEditor) was one of the first. TinyMCE was popular for a long time. I've recently used TinyEditor.
There's also nicedit, 10 editors listed and compared here, not to mention the answers previously provided here on SO to the question of what's available.
An they don't have to produce HTML - there are also editors producing Wiki markup
Why reinvent the wheel?
I found how to create own Rich Text Editor just like this :
(function ($) {
if (typeof $.fn.rte === "undefined") {
var defaults = {
content_css_url: "rte.css",
media_url: "images",
dot_net_button_class: null,
max_height: 350
};
$.fn.rte = function (options) {
$.fn.rte.html = function (iframe) {
return iframe.contentWindow.document.getElementsByTagName("body")[0].innerHTML;
};
var opts = $.extend(defaults, options);
return this.each(function () {
var textarea = $(this);
var iframe;
var myID = textarea.attr("id");
var settings = $.meta ? $.extend({}, opts, textarea.data()) : opts;
var sel = {
cmdBtnSelector: "." + settings.dot_net_button_class
};
function enableDesignMode() {
var content = textarea.val();
if ($.trim(content) == '') {
content = '<br />';
}
if (iframe) {
textarea.hide();
$(iframe).contents().find("body").html(content);
$(iframe).show();
$("#toolbar-" + myID).remove();
textarea.before(toolbar());
return true;
}
iframe = document.createElement("iframe");
iframe.frameBorder = 0;
iframe.frameMargin = 0;
iframe.framePadding = 0;
iframe.height = 200;
if (textarea.attr('class')) iframe.className = textarea.attr('class');
if (textarea.attr('id')) iframe.id = myID;
if (textarea.attr('name')) iframe.title = textarea.attr('name');
textarea.after(iframe);
var css = "";
if (settings.content_css_url) {
css = "<link type='text/css' rel='stylesheet' href='" + settings.content_css_url + "' />";
}
var doc = "<html><head>" + css + "</head><body class='frameBody'>" + content + "</body></html>";
tryEnableDesignMode(doc, function () {
$("#toolbar-" + myID).remove();
textarea.before(toolbar());
textarea.hide();
});
}
function tryEnableDesignMode(doc, callback) {
if (!iframe) {
return false;
}
try {
iframe.contentWindow.document.open();
iframe.contentWindow.document.write(doc);
iframe.contentWindow.document.close();
} catch (error) {
console.log(error)
}
if (document.contentEditable) {
iframe.contentWindow.document.designMode = "On";
callback();
return true;
} else if (document.designMode != null) {
try {
iframe.contentWindow.document.designMode = "on";
callback();
return true;
} catch (error) {
console.log(error)
}
}
setTimeout(function () {
tryEnableDesignMode(doc, callback)
}, 250);
return false;
}
function disableDesignMode(submit) {
var content = $(iframe).contents().find("body").html();
if ($(iframe).is(":visible")) {
textarea.val(content);
}
if (submit !== true) {
textarea.show();
$(iframe).hide();
}
}
function toolbar() {
var tb = $("<div class='rte-toolbar' id='toolbar-" + myID + "'><div>\
<p>\
<select>\
<option value=''>Block style</option>\
<option value='p'>Paragraph</option>\
<option value='h3'>Title</option>\
</select>\
</p>\
<p>\
<a href='#' class='bold'><img src='" + settings.media_url + "text_bold.png' alt='bold' title='Bold' /></a>\
<a href='#' class='italic'><img src='" + settings.media_url + "text_italic.png' alt='italic' title='Italicize' /></a>\
</p>\
<p>\
<a href='#' class='unorderedlist'><img src='" + settings.media_url + "text_list_bullets.png' alt='unordered list' title='Unordered List' /></a>\
<a href='#' class='link'><img src='" + settings.media_url + "link.png' alt='link' title='Hyperlink' /></a>\
<a href='#' class='image'><img src='" + settings.media_url + "image.png' alt='image' title='Image' /></a>\
<a href='#' class='disable'><img src='" + settings.media_url + "code.png' alt='close rte' title='View Code' /></a>\
</p></div></div>");
$('select', tb).change(function () {
var index = this.selectedIndex;
if (index != 0) {
var selected = this.options[index].value;
formatText("formatblock", '<' + selected + '>');
}
});
$('.bold', tb).click(function () {
formatText('bold');
return false;
});
$('.italic', tb).click(function () {
formatText('italic');
return false;
});
$('.unorderedlist', tb).click(function () {
formatText('insertunorderedlist');
return false;
});
$('.link', tb).click(function () {
var p = prompt("URL:");
if (p) formatText('CreateLink', p);
return false;
});
$('.image', tb).click(function () {
var p = prompt("image URL:");
if (p) formatText('InsertImage', p);
return false;
});
$('.disable', tb).click(function () {
disableDesignMode();
var edm = $('Enable design mode');
tb.empty().append(edm);
edm.click(function (e) {
e.preventDefault();
enableDesignMode();
$(this).remove();
});
return false;
});
if (settings.dot_net_button_class != null) {
var cmdBtn = $(iframe).parents('form').find(sel.cmdBtnSelector);
cmdBtn.click(function () {
disableDesignMode(true);
});
} else {
$(iframe).parents('form').submit(function () {
disableDesignMode(true);
});
}
var iframeDoc = $(iframe.contentWindow.document);
var select = $('select', tb)[0];
iframeDoc.mouseup(function () {
setSelectedType(getSelectionElement(), select);
return true;
});
iframeDoc.keyup(function () {
setSelectedType(getSelectionElement(), select);
var body = $('body', iframeDoc);
if (body.scrollTop() > 0) {
var iframe_height = parseInt(iframe.style['height']);
if (isNaN(iframe_height)) {
iframe_height = 0;
}
var h = Math.min(opts.max_height, iframe_height + body.scrollTop()) + 'px';
iframe.style['height'] = h;
}
return true;
});
return tb;
}
function formatText(command, option) {
iframe.contentWindow.focus();
try {
iframe.contentWindow.document.execCommand(command, false, option);
} catch (e) {
console.log(e)
}
iframe.contentWindow.focus();
}
function setSelectedType(node, select) {
while (node.parentNode) {
var nName = node.nodeName.toLowerCase();
for (var i = 0; i < select.options.length; i++) {
if (nName == select.options[i].value) {
select.selectedIndex = i;
return true;
}
}
node = node.parentNode;
}
select.selectedIndex = 0;
return true;
}
function getSelectionElement() {
if (iframe.contentWindow.document.selection) {
selection = iframe.contentWindow.document.selection;
range = selection.createRange();
try {
node = range.parentElement();
} catch (e) {
return false;
}
} else {
try {
selection = iframe.contentWindow.getSelection();
range = selection.getRangeAt(0);
} catch (e) {
return false;
}
node = range.commonAncestorContainer;
}
return node;
}
enableDesignMode();
});
};
}
})(jQuery);
The contentEditable DOM attribute is used make the document or a section of it editable. This doesn't work with a <textarea>; more often an <iframe> is created and the document inside of it used as an editor.
Mark Pilgrim has an article explaining it on the blog of the Web Hypertext Application Technology Working Group. It includes an example page showing some of the features in use.