Moved all the relevant event-related code into the event module.
This commit is contained in:
John Resig
parent
1267e79699
commit
370c6d564a
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@ -1,5 +1,318 @@
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/*
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* A number of helper functions used for managing events.
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* Many of the ideas behind this code orignated from
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* Dean Edwards' addEvent library.
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*/
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jQuery.event = {
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// Bind an event to an element
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// Original by Dean Edwards
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add: function(element, type, handler, data) {
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// For whatever reason, IE has trouble passing the window object
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// around, causing it to be cloned in the process
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if ( jQuery.browser.msie && element.setInterval != undefined )
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element = window;
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// if data is passed, bind to handler
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if( data )
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handler.data = data;
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// Make sure that the function being executed has a unique ID
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if ( !handler.guid )
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handler.guid = this.guid++;
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// Init the element's event structure
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if (!element.events)
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element.events = {};
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// Get the current list of functions bound to this event
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var handlers = element.events[type];
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// If it hasn't been initialized yet
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if (!handlers) {
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// Init the event handler queue
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handlers = element.events[type] = {};
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// Remember an existing handler, if it's already there
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if (element["on" + type])
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handlers[0] = element["on" + type];
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}
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// Add the function to the element's handler list
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handlers[handler.guid] = handler;
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// And bind the global event handler to the element
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element["on" + type] = this.handle;
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// Remember the function in a global list (for triggering)
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if (!this.global[type])
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this.global[type] = [];
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this.global[type].push( element );
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},
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guid: 1,
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global: {},
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// Detach an event or set of events from an element
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remove: function(element, type, handler) {
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if (element.events)
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if ( type && type.type )
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delete element.events[ type.type ][ type.handler.guid ];
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else if (type && element.events[type])
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if ( handler )
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delete element.events[type][handler.guid];
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else
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for ( var i in element.events[type] )
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delete element.events[type][i];
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else
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for ( var j in element.events )
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this.remove( element, j );
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},
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trigger: function(type,data,element) {
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// Clone the incoming data, if any
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data = jQuery.makeArray(data || []);
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// Handle a global trigger
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if ( !element ) {
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var g = this.global[type];
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if ( g )
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for ( var i = 0, gl = g.length; i < gl; i++ )
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this.trigger( type, data, g[i] );
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// Handle triggering a single element
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} else if ( element["on" + type] ) {
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// Pass along a fake event
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data.unshift( this.fix({ type: type, target: element }) );
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// Trigger the event
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element["on" + type].apply( element, data );
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}
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},
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handle: function(event) {
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if ( typeof jQuery == "undefined" ) return false;
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event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
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// returned undefined or false
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var returnValue;
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var c = this.events[event.type];
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var args = [].slice.call( arguments, 1 );
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args.unshift( event );
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for ( var j in c ) {
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// Pass in a reference to the handler function itself
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// So that we can later remove it
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args[0].handler = c[j];
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args[0].data = c[j].data;
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if ( c[j].apply( this, args ) === false ) {
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event.preventDefault();
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event.stopPropagation();
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returnValue = false;
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}
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}
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// Clean up added properties in IE to prevent memory leak
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if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = event.handler = event.data = null;
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return returnValue;
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},
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fix: function(event) {
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// Fix target property, if necessary
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if ( !event.target && event.srcElement )
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event.target = event.srcElement;
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// Calculate pageX/Y if missing and clientX/Y available
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if ( typeof event.pageX == "undefined" && typeof event.clientX != "undefined" ) {
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var e = document.documentElement, b = document.body;
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event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
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event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
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}
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// Check safari and if target is a textnode
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if ( jQuery.browser.safari && event.target.nodeType == 3 ) {
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// target is readonly, clone the event object
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event = jQuery.extend({}, event);
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// get parentnode from textnode
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event.target = event.target.parentNode;
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}
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// fix preventDefault and stopPropagation
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if (!event.preventDefault) {
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event.preventDefault = function() {
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this.returnValue = false;
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};
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}
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if (!event.stopPropagation) {
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event.stopPropagation = function() {
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this.cancelBubble = true;
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};
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}
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return event;
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}
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};
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jQuery.fn.extend({
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/**
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* Binds a handler to a particular event (like click) for each matched element.
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* The event handler is passed an event object that you can use to prevent
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* default behaviour. To stop both default action and event bubbling, your handler
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* has to return false.
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*
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* In most cases, you can define your event handlers as anonymous functions
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* (see first example). In cases where that is not possible, you can pass additional
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* data as the second paramter (and the handler function as the third), see
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* second example.
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*
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* @example $("p").bind( "click", function() {
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* alert( $(this).text() );
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* } )
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* @before <p>Hello</p>
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* @result alert("Hello")
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*
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* @example var handler = function(event) {
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* alert(event.data.foo);
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* };
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* $("p").bind( "click", {foo: "bar"}, handler)
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* @result alert("bar")
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* @desc Pass some additional data to the event handler.
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*
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* @example $("form").bind( "submit", function() { return false; } )
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* @desc Cancel a default action and prevent it from bubbling by returning false
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* from your function.
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*
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* @example $("form").bind( "submit", function(event) {
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* event.preventDefault();
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* } );
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* @desc Cancel only the default action by using the preventDefault method.
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*
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*
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* @example $("form").bind( "submit", function(event) {
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* event.stopPropagation();
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* } )
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* @desc Stop only an event from bubbling by using the stopPropagation method.
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*
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* @name bind
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* @type jQuery
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* @param String type An event type
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* @param Object data (optional) Additional data passed to the event handler as event.data
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* @param Function fn A function to bind to the event on each of the set of matched elements
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* @cat Events
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*/
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bind: function( type, data, fn ) {
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return this.each(function(){
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jQuery.event.add( this, type, fn || data, data );
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});
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},
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/**
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* Binds a handler to a particular event (like click) for each matched element.
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* The handler is executed only once for each element. Otherwise, the same rules
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* as described in bind() apply.
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The event handler is passed an event object that you can use to prevent
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* default behaviour. To stop both default action and event bubbling, your handler
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* has to return false.
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*
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* In most cases, you can define your event handlers as anonymous functions
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* (see first example). In cases where that is not possible, you can pass additional
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* data as the second paramter (and the handler function as the third), see
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* second example.
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*
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* @example $("p").one( "click", function() {
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* alert( $(this).text() );
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* } )
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* @before <p>Hello</p>
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* @result alert("Hello")
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*
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* @name one
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* @type jQuery
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* @param String type An event type
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* @param Object data (optional) Additional data passed to the event handler as event.data
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* @param Function fn A function to bind to the event on each of the set of matched elements
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* @cat Events
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*/
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one: function( type, data, fn ) {
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return this.each(function(){
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jQuery.event.add( this, type, function(event) {
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jQuery(this).unbind(event);
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return (fn || data).apply( this, arguments);
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}, data);
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});
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},
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/**
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* The opposite of bind, removes a bound event from each of the matched
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* elements. You must pass the identical function that was used in the original
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* bind method.
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*
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* @example $("p").unbind( "click", function() { alert("Hello"); } )
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* @before <p onclick="alert('Hello');">Hello</p>
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* @result [ <p>Hello</p> ]
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*
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* @name unbind
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* @type jQuery
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* @param String type An event type
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* @param Function fn A function to unbind from the event on each of the set of matched elements
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* @cat Events
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*/
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/**
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* Removes all bound events of a particular type from each of the matched
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* elements.
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*
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* @example $("p").unbind( "click" )
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* @before <p onclick="alert('Hello');">Hello</p>
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* @result [ <p>Hello</p> ]
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*
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* @name unbind
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* @type jQuery
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* @param String type An event type
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* @cat Events
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*/
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/**
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* Removes all bound events from each of the matched elements.
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*
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* @example $("p").unbind()
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* @before <p onclick="alert('Hello');">Hello</p>
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* @result [ <p>Hello</p> ]
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*
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* @name unbind
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* @type jQuery
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* @cat Events
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*/
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unbind: function( type, fn ) {
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return this.each(function(){
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jQuery.event.remove( this, type, fn );
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});
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},
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/**
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* Trigger a type of event on every matched element.
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*
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* @example $("p").trigger("click")
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* @before <p click="alert('hello')">Hello</p>
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* @result alert('hello')
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*
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* @name trigger
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* @type jQuery
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* @param String type An event type to trigger.
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* @cat Events
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*/
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trigger: function( type, data ) {
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return this.each(function(){
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jQuery.event.trigger( type, data, this );
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});
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},
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// We're overriding the old toggle function, so
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// remember it for later
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_toggle: jQuery.fn.toggle,
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304
src/jquery/jquery.js
vendored
304
src/jquery/jquery.js
vendored
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@ -2039,166 +2039,6 @@ jQuery.extend({
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}
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return r;
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},
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/*
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* A number of helper functions used for managing events.
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* Many of the ideas behind this code orignated from Dean Edwards' addEvent library.
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*/
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event: {
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// Bind an event to an element
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// Original by Dean Edwards
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add: function(element, type, handler, data) {
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// For whatever reason, IE has trouble passing the window object
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// around, causing it to be cloned in the process
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if ( jQuery.browser.msie && element.setInterval != undefined )
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element = window;
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// if data is passed, bind to handler
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if( data )
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handler.data = data;
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// Make sure that the function being executed has a unique ID
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if ( !handler.guid )
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handler.guid = this.guid++;
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// Init the element's event structure
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if (!element.events)
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element.events = {};
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// Get the current list of functions bound to this event
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var handlers = element.events[type];
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// If it hasn't been initialized yet
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if (!handlers) {
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// Init the event handler queue
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handlers = element.events[type] = {};
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// Remember an existing handler, if it's already there
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if (element["on" + type])
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handlers[0] = element["on" + type];
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}
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// Add the function to the element's handler list
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handlers[handler.guid] = handler;
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// And bind the global event handler to the element
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element["on" + type] = this.handle;
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// Remember the function in a global list (for triggering)
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if (!this.global[type])
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this.global[type] = [];
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this.global[type].push( element );
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},
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guid: 1,
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global: {},
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// Detach an event or set of events from an element
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remove: function(element, type, handler) {
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if (element.events)
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if ( type && type.type )
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delete element.events[ type.type ][ type.handler.guid ];
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else if (type && element.events[type])
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if ( handler )
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delete element.events[type][handler.guid];
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else
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for ( var i in element.events[type] )
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delete element.events[type][i];
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else
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for ( var j in element.events )
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this.remove( element, j );
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},
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trigger: function(type,data,element) {
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// Clone the incoming data, if any
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data = jQuery.makeArray(data || []);
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// Handle a global trigger
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if ( !element ) {
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var g = this.global[type];
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if ( g )
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for ( var i = 0, gl = g.length; i < gl; i++ )
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this.trigger( type, data, g[i] );
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// Handle triggering a single element
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} else if ( element["on" + type] ) {
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// Pass along a fake event
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data.unshift( this.fix({ type: type, target: element }) );
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// Trigger the event
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element["on" + type].apply( element, data );
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}
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},
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handle: function(event) {
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if ( typeof jQuery == "undefined" ) return false;
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event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
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// returned undefined or false
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var returnValue;
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var c = this.events[event.type];
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var args = [].slice.call( arguments, 1 );
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args.unshift( event );
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for ( var j in c ) {
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// Pass in a reference to the handler function itself
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// So that we can later remove it
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args[0].handler = c[j];
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args[0].data = c[j].data;
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if ( c[j].apply( this, args ) === false ) {
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event.preventDefault();
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event.stopPropagation();
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returnValue = false;
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}
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}
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// Clean up added properties in IE to prevent memory leak
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if (jQuery.browser.msie) event.target = event.preventDefault = event.stopPropagation = event.handler = event.data = null;
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return returnValue;
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},
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fix: function(event) {
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// Fix target property, if necessary
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if ( !event.target && event.srcElement )
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event.target = event.srcElement;
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// Calculate pageX/Y if missing and clientX/Y available
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if ( typeof event.pageX == "undefined" && typeof event.clientX != "undefined" ) {
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var e = document.documentElement, b = document.body;
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event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
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event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
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}
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// Check safari and if target is a textnode
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if ( jQuery.browser.safari && event.target.nodeType == 3 ) {
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// target is readonly, clone the event object
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event = jQuery.extend({}, event);
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// get parentnode from textnode
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event.target = event.target.parentNode;
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}
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// fix preventDefault and stopPropagation
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if (!event.preventDefault) {
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event.preventDefault = function() {
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this.returnValue = false;
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};
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}
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if (!event.stopPropagation) {
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event.stopPropagation = function() {
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this.cancelBubble = true;
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};
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}
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return event;
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}
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}
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});
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@ -3180,150 +3020,6 @@ jQuery.macros = {
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empty: function(){
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while ( this.firstChild )
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this.removeChild( this.firstChild );
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},
|
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|
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/**
|
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* Binds a handler to a particular event (like click) for each matched element.
|
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* The event handler is passed an event object that you can use to prevent
|
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* default behaviour. To stop both default action and event bubbling, your handler
|
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* has to return false.
|
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*
|
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* In most cases, you can define your event handlers as anonymous functions
|
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* (see first example). In cases where that is not possible, you can pass additional
|
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* data as the second paramter (and the handler function as the third), see
|
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* second example.
|
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*
|
||||
* @example $("p").bind( "click", function() {
|
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* alert( $(this).text() );
|
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* } )
|
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* @before <p>Hello</p>
|
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* @result alert("Hello")
|
||||
*
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* @example var handler = function(event) {
|
||||
* alert(event.data.foo);
|
||||
* };
|
||||
* $("p").bind( "click", {foo: "bar"}, handler)
|
||||
* @result alert("bar")
|
||||
* @desc Pass some additional data to the event handler.
|
||||
*
|
||||
* @example $("form").bind( "submit", function() { return false; } )
|
||||
* @desc Cancel a default action and prevent it from bubbling by returning false
|
||||
* from your function.
|
||||
*
|
||||
* @example $("form").bind( "submit", function(event) {
|
||||
* event.preventDefault();
|
||||
* } );
|
||||
* @desc Cancel only the default action by using the preventDefault method.
|
||||
*
|
||||
*
|
||||
* @example $("form").bind( "submit", function(event) {
|
||||
* event.stopPropagation();
|
||||
* } )
|
||||
* @desc Stop only an event from bubbling by using the stopPropagation method.
|
||||
*
|
||||
* @name bind
|
||||
* @type jQuery
|
||||
* @param String type An event type
|
||||
* @param Object data (optional) Additional data passed to the event handler as event.data
|
||||
* @param Function fn A function to bind to the event on each of the set of matched elements
|
||||
* @cat Events
|
||||
*/
|
||||
bind: function( type, data, fn ) {
|
||||
jQuery.event.add( this, type, fn || data, data );
|
||||
},
|
||||
|
||||
/**
|
||||
* Binds a handler to a particular event (like click) for each matched element.
|
||||
* The handler is executed only once for each element. Otherwise, the same rules
|
||||
* as described in bind() apply.
|
||||
The event handler is passed an event object that you can use to prevent
|
||||
* default behaviour. To stop both default action and event bubbling, your handler
|
||||
* has to return false.
|
||||
*
|
||||
* In most cases, you can define your event handlers as anonymous functions
|
||||
* (see first example). In cases where that is not possible, you can pass additional
|
||||
* data as the second paramter (and the handler function as the third), see
|
||||
* second example.
|
||||
*
|
||||
* @example $("p").one( "click", function() {
|
||||
* alert( $(this).text() );
|
||||
* } )
|
||||
* @before <p>Hello</p>
|
||||
* @result alert("Hello")
|
||||
*
|
||||
* @name one
|
||||
* @type jQuery
|
||||
* @param String type An event type
|
||||
* @param Object data (optional) Additional data passed to the event handler as event.data
|
||||
* @param Function fn A function to bind to the event on each of the set of matched elements
|
||||
* @cat Events
|
||||
*/
|
||||
one: function( type, data, fn ) {
|
||||
jQuery.event.add( this, type, function(event) {
|
||||
jQuery(this).unbind(event);
|
||||
return (fn || data).apply( this, arguments);
|
||||
}, data);
|
||||
},
|
||||
|
||||
/**
|
||||
* The opposite of bind, removes a bound event from each of the matched
|
||||
* elements. You must pass the identical function that was used in the original
|
||||
* bind method.
|
||||
*
|
||||
* @example $("p").unbind( "click", function() { alert("Hello"); } )
|
||||
* @before <p onclick="alert('Hello');">Hello</p>
|
||||
* @result [ <p>Hello</p> ]
|
||||
*
|
||||
* @name unbind
|
||||
* @type jQuery
|
||||
* @param String type An event type
|
||||
* @param Function fn A function to unbind from the event on each of the set of matched elements
|
||||
* @cat Events
|
||||
*/
|
||||
|
||||
/**
|
||||
* Removes all bound events of a particular type from each of the matched
|
||||
* elements.
|
||||
*
|
||||
* @example $("p").unbind( "click" )
|
||||
* @before <p onclick="alert('Hello');">Hello</p>
|
||||
* @result [ <p>Hello</p> ]
|
||||
*
|
||||
* @name unbind
|
||||
* @type jQuery
|
||||
* @param String type An event type
|
||||
* @cat Events
|
||||
*/
|
||||
|
||||
/**
|
||||
* Removes all bound events from each of the matched elements.
|
||||
*
|
||||
* @example $("p").unbind()
|
||||
* @before <p onclick="alert('Hello');">Hello</p>
|
||||
* @result [ <p>Hello</p> ]
|
||||
*
|
||||
* @name unbind
|
||||
* @type jQuery
|
||||
* @cat Events
|
||||
*/
|
||||
unbind: function( type, fn ) {
|
||||
jQuery.event.remove( this, type, fn );
|
||||
},
|
||||
|
||||
/**
|
||||
* Trigger a type of event on every matched element.
|
||||
*
|
||||
* @example $("p").trigger("click")
|
||||
* @before <p click="alert('hello')">Hello</p>
|
||||
* @result alert('hello')
|
||||
*
|
||||
* @name trigger
|
||||
* @type jQuery
|
||||
* @param String type An event type to trigger.
|
||||
* @cat Events
|
||||
*/
|
||||
trigger: function( type, data ) {
|
||||
jQuery.event.trigger( type, data, this );
|
||||
}
|
||||
}
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue