📄 jquery.js
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r.push( n ); } if ( m == "+" ) break; } } else r.push( ret[j].parentNode ); ret = r; // And remove the token t = jQuery.trim( t.replace( re, "" ) ); foundToken = true; } } // See if there's still an expression, and that we haven't already // matched a token if ( t && !foundToken ) { // Handle multiple expressions if ( !t.indexOf(",") ) { // Clean the result set if ( context == ret[0] ) ret.shift(); // Merge the result sets done = jQuery.merge( done, ret ); // Reset the context r = ret = [context]; // Touch up the selector string t = " " + t.substr(1,t.length); } else { // Optomize for the case nodeName#idName var re2 = new RegExp("^(" + jQuery.chars + "+)(#)(" + jQuery.chars + "+)"); var m = re2.exec(t); // Re-organize the results, so that they're consistent if ( m ) { m = [ 0, m[2], m[3], m[1] ]; } else { // Otherwise, do a traditional filter check for // ID, class, and element selectors re2 = new RegExp("^([#.]?)(" + jQuery.chars + "*)"); m = re2.exec(t); } m[2] = m[2].replace(/\\/g, ""); var elem = ret[ret.length-1]; // Try to do a global search by ID, where we can if ( m[1] == "#" && elem && elem.getElementById ) { // Optimization for HTML document case var oid = elem.getElementById(m[2]); // Do a quick check for the existence of the actual ID attribute // to avoid selecting by the name attribute in IE // also check to insure id is a string to avoid selecting an element with the name of 'id' inside a form if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && typeof oid.id == "string" && oid.id != m[2] ) oid = jQuery('[@id="'+m[2]+'"]', elem)[0]; // Do a quick check for node name (where applicable) so // that div#foo searches will be really fast ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : []; } else { // We need to find all descendant elements for ( var i = 0; ret[i]; i++ ) { // Grab the tag name being searched for var tag = m[1] != "" || m[0] == "" ? "*" : m[2]; // Handle IE7 being really dumb about <object>s if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" ) tag = "param"; r = jQuery.merge( r, ret[i].getElementsByTagName( tag )); } // It's faster to filter by class and be done with it if ( m[1] == "." ) r = jQuery.classFilter( r, m[2] ); // Same with ID filtering if ( m[1] == "#" ) { var tmp = []; // Try to find the element with the ID for ( var i = 0; r[i]; i++ ) if ( r[i].getAttribute("id") == m[2] ) { tmp = [ r[i] ]; break; } r = tmp; } ret = r; } t = t.replace( re2, "" ); } } // If a selector string still exists if ( t ) { // Attempt to filter it var val = jQuery.filter(t,r); ret = r = val.r; t = jQuery.trim(val.t); } } // An error occurred with the selector; // just return an empty set instead if ( t ) ret = []; // Remove the root context if ( ret && context == ret[0] ) ret.shift(); // And combine the results done = jQuery.merge( done, ret ); return done; }, classFilter: function(r,m,not){ m = " " + m + " "; var tmp = []; for ( var i = 0; r[i]; i++ ) { var pass = (" " + r[i].className + " ").indexOf( m ) >= 0; if ( !not && pass || not && !pass ) tmp.push( r[i] ); } return tmp; }, filter: function(t,r,not) { var last; // Look for common filter expressions while ( t && t != last ) { last = t; var p = jQuery.parse, m; for ( var i = 0; p[i]; i++ ) { m = p[i].exec( t ); if ( m ) { // Remove what we just matched t = t.substring( m[0].length ); m[2] = m[2].replace(/\\/g, ""); break; } } if ( !m ) break; // :not() is a special case that can be optimized by // keeping it out of the expression list if ( m[1] == ":" && m[2] == "not" ) r = jQuery.filter(m[3], r, true).r; // We can get a big speed boost by filtering by class here else if ( m[1] == "." ) r = jQuery.classFilter(r, m[2], not); else if ( m[1] == "@" ) { var tmp = [], type = m[3]; for ( var i = 0, rl = r.length; i < rl; i++ ) { var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ]; if ( z == null || /href|src/.test(m[2]) ) z = jQuery.attr(a,m[2]) || ''; if ( (type == "" && !!z || type == "=" && z == m[5] || type == "!=" && z != m[5] || type == "^=" && z && !z.indexOf(m[5]) || type == "$=" && z.substr(z.length - m[5].length) == m[5] || (type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not ) tmp.push( a ); } r = tmp; // We can get a speed boost by handling nth-child here } else if ( m[1] == ":" && m[2] == "nth-child" ) { var num = jQuery.mergeNum++, tmp = [], test = /(\d*)n\+?(\d*)/.exec( m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" || !/\D/.test(m[3]) && "n+" + m[3] || m[3]), first = (test[1] || 1) - 0, last = test[2] - 0; for ( var i = 0, rl = r.length; i < rl; i++ ) { var node = r[i], parentNode = node.parentNode; if ( num != parentNode.mergeNum ) { var c = 1; for ( var n = parentNode.firstChild; n; n = n.nextSibling ) if ( n.nodeType == 1 ) n.nodeIndex = c++; parentNode.mergeNum = num; } var add = false; if ( first == 1 ) { if ( last == 0 || node.nodeIndex == last ) add = true; } else if ( (node.nodeIndex + last) % first == 0 ) add = true; if ( add ^ not ) tmp.push( node ); } r = tmp; // Otherwise, find the expression to execute } else { var f = jQuery.expr[m[1]]; if ( typeof f != "string" ) f = jQuery.expr[m[1]][m[2]]; // Build a custom macro to enclose it eval("f = function(a,i){return " + f + "}"); // Execute it against the current filter r = jQuery.grep( r, f, not ); } } // Return an array of filtered elements (r) // and the modified expression string (t) return { r: r, t: t }; }, parents: function( elem ){ var matched = []; var cur = elem.parentNode; while ( cur && cur != document ) { matched.push( cur ); cur = cur.parentNode; } return matched; }, nth: function(cur,result,dir,elem){ result = result || 1; var num = 0; for ( ; cur; cur = cur[dir] ) if ( cur.nodeType == 1 && ++num == result ) break; return cur; }, sibling: function( n, elem ) { var r = []; for ( ; n; n = n.nextSibling ) { if ( n.nodeType == 1 && (!elem || n != elem) ) r.push( n ); } return r; }});/* * A number of helper functions used for managing events. * Many of the ideas behind this code orignated from * Dean Edwards' addEvent library. */jQuery.event = { // Bind an event to an element // Original by Dean Edwards add: function(element, type, handler, data) { // For whatever reason, IE has trouble passing the window object // around, causing it to be cloned in the process if ( jQuery.browser.msie && element.setInterval != undefined ) element = window; // Make sure that the function being executed has a unique ID if ( !handler.guid ) handler.guid = this.guid++; // if data is passed, bind to handler if( data != undefined ) { // Create temporary function pointer to original handler var fn = handler; // Create unique handler function, wrapped around original handler handler = function() { // Pass arguments and context to original handler return fn.apply(this, arguments); }; // Store data in unique handler handler.data = data; // Set the guid of unique handler to the same of original handler, so it can be removed handler.guid = fn.guid; } // Init the element's event structure if (!element.$events) element.$events = {}; if (!element.$handle) element.$handle = function() { // returned undefined or false var val; // Handle the second event of a trigger and when // an event is called after a page has unloaded if ( typeof jQuery == "undefined" || jQuery.event.triggered ) return val; val = jQuery.event.handle.apply(element, arguments); return val; }; // Get the current list of functions bound to this event var handlers = element.$events[type]; // Init the event handler queue if (!handlers) { handlers = element.$events[type] = {}; // And bind the global event handler to the element if (element.addEventListener) element.addEventListener(type, element.$handle, false); else element.attachEvent("on" + type, element.$handle); } // Add the function to the element's handler list handlers[handler.guid] = handler; // Remember the function in a global list (for triggering) if (!this.global[type]) this.global[type] = []; // Only add the element to the global list once if (jQuery.inArray(element, this.global[type]) == -1) this.global[type].push( element ); }, guid: 1, global: {}, // Detach an event or set of events from an element remove: function(element, type, handler) { var events = element.$events, ret, index; if ( events ) { // type is actually an event object here if ( type && type.type ) { handler = type.handler; type = type.type; } if ( !type ) { for ( type in events ) this.remove( element, type ); } else if ( events[type] ) { // remove the given handler for the given type if ( handler ) delete events[type][handler.guid]; // remove all handlers for the given type else for ( handler in element.$events[type] ) delete events[type][handler]; // remove generic event handler if no more handlers exist for ( ret in events[type] ) break; if ( !ret ) { if (element.removeEventListener) element.removeEventListener(type, element.$handle, false); else element.detachEvent("on" + type, element.$handle); ret = null; delete events[type]; // Remove element from the global event type cache while ( this.global[type] && ( (index = jQuery.inArray(element, this.global[type])) >= 0 ) ) delete this.global[type][index]; } } // Remove the expando if it's no longer used for ( ret in events ) break; if ( !ret ) element.$handle = element.$events = null; } }, trigger: function(type, data, element) { // Clone the incoming data, if any data = jQuery.makeArray(data || []); // Handle a global trigger if ( !element ) jQuery.each( this.global[type] || [], function(){ jQuery.event.trigger( type, data, this ); }); // Handle triggering a single element else { var val, ret, fn = jQuery.isFunction( element[ type ] || null ); // Pass along a fake event data.unshift( this.fix({ type: type, target: element }) ); // Trigger the event if ( jQuery.isFunction(element.$handle) && (val = element.$handle.apply( element, data )) !== false ) this.triggered = true; if ( fn && val !== false && !jQuery.nodeName(element, 'a') ) element[ type ](); this.triggered = false; } }, handle: function(event) { // returned undefined or false var val; // Empty object is for triggered events with no data event = jQuery.event.fix( event || window.event || {} ); var c = this.$events && this.$events[event.type], args = [].slice.call( arguments, 1 ); args.unshift( event ); for ( var j in c ) { // Pass in a reference to the handler function itself // So that we can later remove it args[0].handler = c[j]; args[0].data = c[j].data; if ( c[j].apply( this, args ) === false ) { event.preventDefault(); event.stopPropagation(); val = false; } } // Clean up added properties in IE to prevent memory leak if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = event.handler = event.data = null; return val; }, fix: function(event) {
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