jquery.js

一个PHP源代码,一个简单的论坛 一个 PHP源代码,一个简单的论坛

/*
 * JQuery (http://jquery.com/)
 * By John Resig (http://ejohn.org/)
 * Under an Attribution, Share Alike License
 */

function $(a,c) {
	var $a = a || $.context || document;
	var $c = c && c.$jquery && c.get(0) || c;
	
	// Since we're using Prototype's $ function,
	// be nice and have backwards compatability
	if ( typeof Prototype != "undefined" ) {
		if ( $a.constructor == String ) {
			var re = new RegExp( "[^a-zA-Z0-9_-]" );
			if ( !re.test($a) ) {
				$c = $c && $c.documentElement || document;
				if ( $c.getElementsByTagName($a).length == 0 ) {
					var obj = $c.getElementById($a);
					if ( obj != null ) return obj;
				}
			}
		} else if ( $a.constructor == Array ) {
			return $.map( $a, function(b){
				if ( b.constructor == String )
					return document.getElementById(b);
				return b;
			});
		}
	}

	// Load Dynamic Function List
	var self = {
		cur: $.Select($a,$c),
		$jquery: "0.30",
		
		// The only two getters
		size: function() {return this.get().length},
		get: function(i) {
			return i == null ? this.cur : this.cur[i];
		},
		
		each: function(f) {
			for ( var i = 0; i < this.size(); i++ )
				$.apply( this.get(i), f, [i] );
			return this;
		},
		set: function(a,b) {
			return this.each(function(){
				if ( b == null )
					for ( var j in a )
						$.attr(this,j,a[j]);
				else
					$.attr(this,a,b);
			});
		},
		html: function(h) {
			return h == null && this.size() ?
        this.get(0).innerHTML : this.set( "innerHTML", h );
		},
		val: function(h) {
			return h == null && this.size() ?
        this.get(0).value : this.set( "value", h );
		},
		
		css: function(a,b) {
			return this.each(function(){
				if ( !b )
					for ( var j in a )
						$.attr(this.style,j,a[j]);
				else
					$.attr(this.style,a,b);
			});
		},
		toggle: function() {
			return this.each(function(){
				var d = $.getCSS(this,"display");
				if ( d == "none" || d == '' )
					$(this).show();
				else
					$(this).hide();
			});
		},
		show: function(a) {
			return this.each(function(){
				this.style.display = this.$$oldblock ? this.$$oldblock : '';
				if ( $.getCSS(this,"display") == "none" ) this.style.display = 'block';
			});
		},
		hide: function(a) {
			return this.each(function(){
				this.$$oldblock = $.getCSS(this,"display");
				if ( this.$$oldblock == "none" ) this.$$oldblock = 'block';
				this.style.display = 'none';
			});
		},
		addClass: function(c) {
			return this.each(function(){
				if ($.hasWord(this,c)) return;
				this.className += ( this.className.length > 0 ? " " : "" ) + c;
			});
		},
		removeClass: function(c) {
			return this.each(function(){
				this.className = c == null ? '' :
					this.className.replace(
						new RegExp('(^|\\s*\\b[^-])'+c+'($|\\b(?=[^-]))', 'g'), '');
			});
		},
		// TODO: Optomize
		toggleClass: function(c) {
			return this.each(function(){
				if ($.hasWord(this,c))
					this.className = 
						this.className.replace(
							new RegExp('(\\s*\\b[^-])'+c+'($|\\b(?=[^-]))', 'g'), '');
				else
					this.className += ( this.className.length > 0 ? " " : "" ) + c;
			});
		},
		remove: function() {
			this.each(function(){this.parentNode.removeChild( this );});
			this.cur = [];
			return this;
		},
		
		wrap: function() {
			var a = $.clean(arguments);
			return this.each(function(){
				var b = a[0].cloneNode(true);
				this.parentNode.insertBefore( b, this );
				while ( b.firstChild ) b = b.firstChild;
				b.appendChild( this );
			});
		},
		
		append: function() {
      			var clone = this.size() > 1;
			var a = $.clean(arguments);
			return this.each(function(){
				for ( var i = 0; i < a.length; i++ )
				  this.appendChild( clone ? a[i].cloneNode(true) : a[i] );
			});
		},

		appendTo: function() {
			var a = arguments;
			return this.each(function(){
				for ( var i = 0; i < a.length; i++ )
					$(a[i]).append( this );
			});
		},
		
		prepend: function() {
      var clone = this.size() > 1;
			var a = $.clean(arguments);
			return this.each(function(){
				for ( var i = a.length - 1; i >= 0; i-- )
				  if ( a[i].nodeType )
					this.insertBefore( clone ? a[i].cloneNode(true) : a[i], this.firstChild );
			});
		},
		
		before: function() {
      var clone = this.size() > 1;
			var a = $.clean(arguments);
			return this.each(function(){
				for ( var i = 0; i < a.length; i++ )
					this.parentNode.insertBefore( clone ? a[i].cloneNode(true) : a[i], this );
			});
		},
		
		after: function() {
      var clone = this.size() > 1;
			var a = $.clean(arguments);
			return this.each(function(){
				for ( var i = a.length - 1; i >= 0; i-- )
					this.parentNode.insertBefore( clone ? a[i].cloneNode(true) : a[i], this.nextSibling );
			});
		},

		empty: function() {
			return this.each(function(){
				while ( this.firstChild )
					this.removeChild( this.firstChild );
			});
		},
		
		bind: function(t,f) {
			return this.each(function(){addEvent(this,t,f);});
		},
		unbind: function(t,f) {
			return this.each(function(){removeEvent(this,t,f);});
		},
		trigger: function(t) {
			return this.each(function(){triggerEvent(this,t);});
		},
		
		find: function(t) {
			var old = [], ret = [];
			this.each(function(){
				old[old.length] = this;
				ret = $.merge( ret, $.Select(t,this) );
			});
			this.old = old;
			this.cur = ret;
			return this;
		},
		end: function() {
			this.cur = this.old;
			return this;
		},
		
		parent: function(a) {
			this.cur = $.map(this.cur,function(d){
        return d.parentNode;
      });
      if ( a ) this.cur = $.filter(a,this.cur).r;
			return this;
		},
		
		parents: function(a) {
			this.cur = $.map(this.cur,$.parents);
      if ( a ) this.cur = $.filter(a,this.cur).r;
			return this;
		},

		siblings: function(a) {
      // Incorrect, need to exclude current element
			this.cur = $.map(this.cur,$.sibling);
      if ( a ) this.cur = $.filter(a,this.cur).r;
			return this;
		},
		
		filter: function(t) {
			this.cur = $.filter(t,this.cur).r;
			return this;
		},
		not: function(t) {
			this.cur = t.constructor == String ?
				$.filter(t,this.cur,false).r :
				$.grep(this.cur,function(a){return a != t;});
			return this;
		},
		add: function(t) {
			this.cur = $.merge( this.cur, t.constructor == String ?
				$.Select(t) : t.constructor == Array ? t : [t] );
			return this;
		},
		is: function(t) {
			return $.filter(t,this.cur).r.length > 0;
		},
		isNot: function(t) {
			return !this.s(t);
		}
	};
	
	// TODO: Remove need to return this
	for ( var i in $.fn ) {
		if ( self[i] != null )
			self["_"+i] = self[i];
		self[i] = $.fn[i];
	}
	
	if ( typeof Prototype != "undefined" && $a.constructor != String ) {
		if ( $c ) $a = self.get();
		for ( var i in self ) {(function(j){
			try {
				if ( $a[j] == null ) {
					$a[j] = function() {
						return $.apply(self,self[j],arguments);
					};
				}
			} catch(e) {}
		})(i);}
		return $a;
	}
	
	return self;
}

$.apply = function(o,f,a) {
	a = a || [];
	if ( f.apply )
		return f.apply( o, a );
  else {
		var p = [];
		for (var i = 0; i < a.length; i++)
			p[i] = 'a['+i+']';
		o.$$exec = this;
		var r = eval('o.$$exec(' + p.join(',') + ')');
		o.$$exec = null;
		return r;
	}
};

$.getCSS = function(e,p) {
	// Adapted from Prototype 1.4.0
	if ( p == 'height' || p == 'width' ) {
    if ($.getCSS(e,"display") != 'none')
			return p == 'height' ?
				e.offsetHeight || parseInt(e.style.height) : 
				e.offsetWidth || parseInt(e.style.width);
    var els = e.style;
    var ov = els.visibility;
    var op = els.position;
		var od = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = '';
		var oHeight = e.clientHeight || parseInt(e.style.height);
    var oWidth = e.clientWidth || parseInt(e.style.width);
    els.display = od;
    els.position = op;
    els.visibility = ov;
		return p == 'height' ? oHeight : oWidth;
  }
	
  if (e.style[p])
    return e.style[p];
  else if (e.currentStyle)
    return e.currentStyle[p];
  else if (document.defaultView && document.defaultView.getComputedStyle) {
    p = p.replace(/([A-Z])/g,"-$1");
    p = p.toLowerCase();
    var s = document.defaultView.getComputedStyle(e,"");
    var r = s ? s.getPropertyValue(p) : p;
		return r;
  } else
    return null;
};
$.css = $.getCSS;

$.clean = function(a) {
	var r = [];
	for ( var i = 0; i < a.length; i++ )
		if ( a[i].constructor == String ) {
			var div = document.createElement("div");
			div.innerHTML = a[i];
			for ( var j = 0; j < div.childNodes.length; j++ )
				r[r.length] = div.childNodes[j];
		} else if ( a[i].length )
			for ( var j = 0; j < a[i].length; j++ )
				r[r.length] = a[i][j];
		else if ( a[i] != null )
			r[r.length] = 
				a[i].nodeType ? a[i] : document.createTextNode(a[i].toString());
	return r;
};

$.g = {
	'': "m[2] == '*' || a.nodeName.toUpperCase() == m[2].toUpperCase()",
	'#': "a.id == m[2]",
	':': {
		lt: "i < m[3]-0",
		gt: "i > m[3]-0",
		nth: "m[3] - 0 == i",
		eq: "m[3] - 0 == i",
		first: "i == 0",
		last: "i == r.length - 1",
		even: "i % 2 == 0",
		odd: "i % 2 == 1",
		"first-child": "$.sibling(a,0).cur",
		"nth-child": "(m[3] == 'even'?$.sibling(a,m[3]).n % 2 == 0 :(m[3] == 'odd'?$.sibling(a,m[3]).n % 2 == 1:$.sibling(a,m[3]).cur))",
		"last-child": "$.sibling(a,0,true).cur",
		"nth-last-child": "$.sibling(a,m[3],true).cur",
		"first-of-type": "$.ofType(a,0)",
		"nth-of-type": "$.ofType(a,m[3])",
		"last-of-type": "$.ofType(a,0,true)",
		"nth-last-of-type": "$.ofType(a,m[3],true)",
		"only-of-type": "$.ofType(a) == 1",
		"only-child": "$.sibling(a).length == 1",
		parent: "a.childNodes.length > 0",
		empty: "a.childNodes.length == 0",
		root: "a == ( a.ownerDocument ? a.ownerDocument : document ).documentElement",
		contains: "(a.innerText || a.innerHTML).indexOf(m[3]) != -1",
		visible: "(!a.type || a.type != 'hidden') && ($.getCSS(a,'display') != 'none' && $.getCSS(a,'visibility') != 'hidden')",
		hidden: "(a.type && a.type == 'hidden') || $.getCSS(a,'display') == 'none' || $.getCSS(a,'visibility') == 'hidden'",
		enabled: "a.disabled == false",
		disabled: "a.disabled",
		checked: "a.checked"
	},
	// TODO: Write getAttribute helper
	".": "$.hasWord(a,m[2])",
	"@": {
		"=": "$.attr(a,m[3]) == m[4]",
		"!=": "$.attr(a,m[3]) != m[4]",
		"~=": "$.hasWord($.attr(a,m[3]),m[4])",
		"|=": "$.attr(a,m[3]).indexOf(m[4]) == 0",
		"^=": "$.attr(a,m[3]).indexOf(m[4]) == 0",
		"$=": "$.attr(a,m[3]).substr( $.attr(a,m[3]).length - m[4].length, m[4].length ) == m[4]",
		"*=": "$.attr(a,m[3]).indexOf(m[4]) >= 0",
		"": "m[3] == '*' ? a.attributes.length > 0 : $.attr(a,m[3])"
	},
	"[": "$.Select(m[2],a).length > 0"
};

$.fn = {};

$.Select = function( t, context ) {
	context = context || $.context || document;
	if ( t.constructor != String ) return [t];