// view the full video at:
// http://jquery14.com/day-05/jquery-1-4-hawtness-1-with-paul-irish
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888 "Y888888" "Y88888 "Y8888 888 "Y88888 8888888 Y8P 888
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888 888 "88b 888 888 888 888 888 "88b d8P Y8b 88K 88K
888 888 .d888888 888 888 888 888 888 888 88888888 "Y8888b. "Y8888b.
888 888 888 888 Y88b 888 d88P Y88b. 888 888 Y8b. X88 X88
888 888 "Y888888 "Y8888888P" "Y888 888 888 "Y8888 88888P' 88888P'
#1: live() and closest()
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*/
/*
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`888 `"'
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888 888 `88..8' 888ooo888
888 888 `888' 888 .o
o888o o888o `8' `Y8bod8P'
*/
// all <a href="#anchor"> smoothscroll to those elements
$("a[href^=#][href!=#]").live('click',function(e){
$('html,body').animate({'scrollTop': $($(this).attr('href')).offset().top+'px'});
e.preventDefault();
});
// all dropdowns, including dynamically added ones execute this when the value is changed
$('select').live('change',function(e){
console.log( e.target, ' has been changed to ', $(this).val() );
});
// already worked in FF..
// all forms, including dynamically added ones execute this when they are submitted
$('form').live('submit',function(e){
console.log(e.target,' has sumbitted');
});
// focusin and focusout for focus/blur
$('input:text').live('focusout',function(){
checkValidation( this, $(this).val() );
});
// hinting with default placeholder values for text input items.
// $('input[placeholder]').placeholder();
$.fn.placeholder = function(){
// quit if there's support for html5 placeholder
if (this[0] && 'placeholder' in document.createElement('input')) return;
return this
.live('focusin',function(){
if ($(this).val() === $(this).attr('placeholder')) {
$(this).val('');
}
}).live('focusout',function(){
if ($(this).val() === ''){
$(this).val( $(this).attr('placeholder') );
}_
});
}
// updates:
// thx to jkline for the tip. this works now
// mathias bynens has blown this code out into a full plugin:
// http://github.com/mathiasbynens/Placeholder-jQuery-Plugin
// mouseenter mouseleave
// colorize the hoverboxes when people hover in and out of them
$('div.hoverbox').live('mouseenter mouseleave',function(e){
var isEnter = (e.type === 'mouseenter');
$(this).css('backgroundColor', isEnter ? 'red' : 'blue');
});
// using data{} with live()
$('#content a.external').live('click',{ bindtime : new Date() },function(e){
var clicktime = new Date(),
duration = (clicktime - e.data.bindtime) / 1000;
console.log(duration,' seconds between binding and clicking');
});
// custom events with live()
$("p").live("myCustomEvent", function(e, myName, myValue){
$(this).text("Hi there!");
$("span").stop().css("opacity", 1)
.text("myName = " + myName)
.fadeIn(30).fadeOut(1000);
});
$("button").click(function () {
$("p").trigger("myCustomEvent");
});
// performance optimization: providing a context for your delegation
// will execute much quicker on every click, vs $('a.external').live(....
$('a.external', $('#content')[0] ).live('click',function(){.....
/*
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888 888 888 888 `"Y88b. 888ooo888 `"Y88b. 888
888 .o8 888 888 888 o. )88b 888 .o o. )88b 888 .
`Y8bod8P' o888o `Y8bod8P' 8""888P' `Y8bod8P' 8""888P' "888"
*/
// closest(Array)
jQuery("body").closest(["body","html"])
// returns an object like this:
[{selector:"body", elem:document.body}, {selector:"html", elem:document.documentElement}]
// performance optimization: providing a context for your delegation
// only elements div.post within #content will be found.
var post = $('a.external').closest('div.post', $('#content')[0])
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// setterMethods(function(i,val){ ... }) and animation
// events! bind(). proxy(). special
// traversing and manipulation
// *ajax!*
// utilities
// what may break in 1.4 for you.'