Bearbeiten von „JQuery - Snippets“

Nützliche jQuery Schnipsel
== Links ==
[[JavaScript - Snippets]]

http://css-tricks.com/snippets/jquery/

=== jQuery Countdown Scripts ===
http://www.tripwiremagazine.com/2012/01/jquery-countdown-scripts.html

== Formulare ==
=== Fokus auf erstes Input-Feld im Formular setzen ===
 // focus on the first text input field on the page
 $("input[type='text']:first", document.forms[0]).focus();

== Browser ==
=== Resize des Browserfensters feststellen ===
<pre>
<script type="text/javascript" charset="utf-8" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
 
//If the User resizes the window, adjust the #container height
$(window).bind("resize", resizeWindow);
function resizeWindow( e ) {
	var newWindowHeight = $(window).height();
	$("#container").css("min-height", newWindowHeight );
}
 
});			
</script>

</pre>

== Templates - Vorlagen ==
=== XHTML 1.0 Template mit jQuery ===
<pre>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" dir="ltr">
<head>
	<meta http-equiv="content-type" content="text/html; charset=utf-8" />
	<title>Title goes here &raquo; Site title here</title>

	<!-- Meta Tags -->
	<base href="" />
	<meta name="author" content="#" />
	<meta name="description" content="#" />
	<meta name="copyright" content="#" />
	<meta name="robots" content="#" />
	<meta name="generator" content="#" />
	<meta name="keywords" content="#" />
	<meta http-equiv="expires" content="#" />
	<meta http-equiv="cache-control" content="#" />
	
	<!-- Fav icon -->
	<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />

	<!-- JavaScript setup -->
	<script type="text/javascript">
	/*<![CDATA[*/
	// add 'js' class to root element to nicely allow css that degrades gracefully if js is disabled
	document.getElementsByTagName('html')[0].className = 'js';
	/*]]>*/
	</script>
	
	<!-- CSS -->
	<link rel="stylesheet" href="/stylesheets/screen.css" type="text/css" media="screen, projection" />
	<link rel="stylesheet" href="/stylesheets/print.css" type="text/css" media="print" />
	
	<!--[if IE]>
	<link rel="stylesheet" href="/stylesheets/ie-all.css" type="text/css" media="screen, projection" />
	<![endif]-->
	
</head>
<body>
	<div id="container">
	
		<div id="header">
			<h1>Title of page goes here</h1>
			<h2>Subtitle of page goes here</h2>
		</div><!-- end header div -->
		
		<div id="nav">
			<ul class="menu">
				<li><a href="#">Link #1</a></li>
				<li><a href="#">Link #2</a></li>
				<li><a href="#">Link #3</a></li>
			</ul>
			<ul class="breadcrumbs">
				<li><a href="#">Home</a></li>
				<li><a href="#">Sub directory</a></li>
				<li><a href="#">Current page</a></li>
			</ul>
		</div><!-- end nav div -->

		<div id="main">
			<ul class="sidebar">
				<li><a href="#">Sidebar link #1</a></li>
				<li><a href="#">Sidebar link #2</a></li>
			</ul>

			<div id="sub1">
				<h3>Title of content</h3>
				<p>Begin content here</p>
			</div>
			
			<div id="sub2" class="hide">
				<h3>Title of content</h3>
				<p>Begin content here</p>
			</div>
		</div><!-- end main div -->

		<div id="footer">
			<p>&copy;2XXX company name here. Creative Commons link, your own link, validation, etc.</p>
		</div><!-- end footer div -->
		
	</div><!-- end container div -->

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script type="text/javascript" src="/scripts/app.js"></script>
	
<!-- place Google Analytics code here -->

</body>
</html>
</pre>
== JavaScript nachladen während die Seite schon angezeigt wird ==
<pre>
// Add this onDocumentReady function to the end of the jQuery.js file. 
// It MUST be in the jquery file to work correctly.
$(function(){
	var scripts = /\?(.*)/, files = [], path = /^.*\//, loaded = 0, count = 0;
 
	$('script').each(function(){
		var src = $(this).attr('src');
		if (!scripts.test(src)) return;
		var pathto = src.match(path);
		files = files.concat($.map(src.match(scripts).pop().split(','), function(e,i){
			return pathto+e+'.js'
		}));
	})
 
	count = files.length;
 
	$.each(files, function(){
		$.getScript(this, function(){
			loaded++;
			if(loaded == count && typeof onBackload == 'function')
				onBackload(loaded)
		})
	})
});
 
/**
 * If you have the following script tags:
 * 	<script src="/path/to/jquery.min.js?somefile,otherfile.min,thirdfile"></script>
 * 	<script src="/other/path/foo.js?different.file,final.file"></script>
 * This script will "backload" the following files:
 * 	/path/to/somefile.js
 *	/path/to/otherfile.min.js
 * 	/path/to/thirdfile.js
 * 	/other/path/different.file.js
 *	/other/path/final.file.js
 */
 
// And if you declare a function named "onBackload", it will be fired when all the scripts are loaded
// This is handy for getting things going once you're confident your scripts have all been included.
function onBackload(loaded){
	alert('All ' + loaded + ' files backloaded!')
}
</pre>

== DOM Manipulation ==
=== Einfaches Rollover Hide Show Skript ===
<pre>
<script type="text/javascript">
	/*<![CDATA[*/
<!--
//var j = jQuery.noConflict();
$(document).ready(function() {
    hideAllItems();	

    $("h5").hover( 
      function () {
         showItem($(this));
      }, 
      function () {
        hideItem($(this));
      }

    );
 
});

function hideAllItems(){
    $(".bodytext").hide();	
}

function showItem(myItem){
      myItem.next().fadeIn(250);
      myItem.parent().addClass("topLine");
    //myItem.parents().append($("<span> ***</span>"));
    //myItem.parents().("p").fadeIn(250);
    //myItem.parents().append($("<span> ***</span>"));
}

function hideItem(myItem){
    myItem.next().fadeOut(250);
    myItem.parent().removeClass("topLine");
    //hideAllItems();
    //myItem.find("span:last").remove();

}
// -->
	/*]]>*/
</script>
</pre>

Siehe auch: [[Media:Maphilight-sample01.zip]]‎

===Append Site Overlay DIV===

Quelle: http://css-tricks.com/snippets/jquery/append-site-overlay-div/ (11/2011)

<pre>
$(function() {

   var docHeight = $(document).height();

   $("body").append("<div id='overlay'></div>");

   $("#overlay")
      .height(docHeight)
      .css({
         'opacity' : 0.4,
         'position': 'absolute',
         'top': 0,
         'left': 0,
         'background-color': 'black',
         'width': '100%',
         'z-index': 5000
      });

});
</pre>
=== jQuery - overlay, modal box, lightbox, tooltips ===
Infos über die verschiedenen Möglichkeiten und die Unterschiede (Todo)

Beispiele:

=== Position eines Elements auslesen ===

<pre>
// get Pos of act Item
var position = $("#myElement").offset();
//console.log(position);

//set positon to other elements...
$("#otherElement").css(position);
$("#anotherElement").css("top",(position.top+5));

</pre>

== Usability ==
=== Loading Icon bis Seite komplett geladen ist ===
Quelle: siehe Links

<pre>
<head>
	<meta charset='UTF-8'>
	<title>Simple Loader</title>
	<style>
		/* This only works with JavaScript,
		   if it's not present, don't show loader */
		.no-js #loader { display: none;  }
		.js #loader { display: block; position: absolute; left: 100px; top: 0; }
	</style>

	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
	
	<script src="https://github.com/Modernizr/Modernizr/raw/master/modernizr.js"></script>
	<script>
		// Wait for window load
		$(window).load(function() {
			// Animate loader off screen
			$("#loader").animate({
				top: -200
			}, 1500);
		});
	</script>
</head>

<body>
	<img src="download.png" id="loader">
	<img src="http://farm6.static.flickr.com/5299/5400751421_55d49b2786_o.jpg">
</body>

</pre>