+/*
+ * 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;
+
+ // if data is passed, bind to handler
+ if( data )
+ handler.data = data;
+
+ // Make sure that the function being executed has a unique ID
+ if ( !handler.guid )
+ handler.guid = this.guid++;
+
+ // Init the element's event structure
+ if (!element.events)
+ element.events = {};
+
+ // Get the current list of functions bound to this event
+ var handlers = element.events[type];
+
+ // If it hasn't been initialized yet
+ if (!handlers) {
+ // Init the event handler queue
+ handlers = element.events[type] = {};
+
+ // Remember an existing handler, if it's already there
+ if (element["on" + type])
+ handlers[0] = element["on" + type];
+ }
+
+ // Add the function to the element's handler list
+ handlers[handler.guid] = handler;
+
+ // And bind the global event handler to the element
+ element["on" + type] = this.handle;
+
+ // Remember the function in a global list (for triggering)
+ if (!this.global[type])
+ this.global[type] = [];
+ this.global[type].push( element );
+ },
+
+ guid: 1,
+ global: {},
+
+ // Detach an event or set of events from an element
+ remove: function(element, type, handler) {
+ if (element.events)
+ if ( type && type.type )
+ delete element.events[ type.type ][ type.handler.guid ];
+ else if (type && element.events[type])
+ if ( handler )
+ delete element.events[type][handler.guid];
+ else
+ for ( var i in element.events[type] )
+ delete element.events[type][i];
+ else
+ for ( var j in element.events )
+ this.remove( element, j );
+ },
+
+ trigger: function(type,data,element) {
+ // Clone the incoming data, if any
+ data = jQuery.makeArray(data || []);
+
+ // Handle a global trigger
+ if ( !element ) {
+ var g = this.global[type];
+ if ( g )
+ for ( var i = 0, gl = g.length; i < gl; i++ )
+ this.trigger( type, data, g[i] );
+
+ // Handle triggering a single element
+ } else if ( element["on" + type] ) {
+ // Pass along a fake event
+ data.unshift( this.fix({ type: type, target: element }) );
+
+ // Trigger the event
+ element["on" + type].apply( element, data );
+ }
+ },
+
+ handle: function(event) {
+ if ( typeof jQuery == "undefined" ) return false;
+
+ event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
+
+ // returned undefined or false
+ var returnValue;
+
+ var c = this.events[event.type];
+
+ var 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();
+ returnValue = 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 returnValue;
+ },
+
+ fix: function(event) {
+ // Fix target property, if necessary
+ if ( !event.target && event.srcElement )
+ event.target = event.srcElement;
+
+ // Calculate pageX/Y if missing and clientX/Y available
+ if ( typeof event.pageX == "undefined" && typeof event.clientX != "undefined" ) {
+ var e = document.documentElement, b = document.body;
+ event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
+ event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
+ }
+
+ // Check safari and if target is a textnode
+ if ( jQuery.browser.safari && event.target.nodeType == 3 ) {
+ // target is readonly, clone the event object
+ event = jQuery.extend({}, event);
+ // get parentnode from textnode
+ event.target = event.target.parentNode;
+ }
+
+ // fix preventDefault and stopPropagation
+ if (!event.preventDefault) {
+ event.preventDefault = function() {
+ this.returnValue = false;
+ };
+ }
+
+ if (!event.stopPropagation) {
+ event.stopPropagation = function() {
+ this.cancelBubble = true;
+ };
+ }
+
+ return event;
+ }
+};
+
jQuery.fn.extend({
+ /**
+ * Binds a handler to a particular event (like click) for each matched element.
+ * 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").bind( "click", function() {
+ * alert( $(this).text() );
+ * } )
+ * @before <p>Hello</p>
+ * @result alert("Hello")
+ *
+ * @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 ) {
+ return this.each(function(){
+ 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 ) {
+ return this.each(function(){
+ 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 ) {
+ return this.each(function(){
+ 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 ) {
+ return this.each(function(){
+ jQuery.event.trigger( type, data, this );
+ });
+ },
+
// We're overriding the old toggle function, so
// remember it for later
_toggle: jQuery.fn.toggle,
}
return r;
- },
-
- /*
- * A number of helper functions used for managing events.
- * Many of the ideas behind this code orignated from Dean Edwards' addEvent library.
- */
- 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;
-
- // if data is passed, bind to handler
- if( data )
- handler.data = data;
-
- // Make sure that the function being executed has a unique ID
- if ( !handler.guid )
- handler.guid = this.guid++;
-
- // Init the element's event structure
- if (!element.events)
- element.events = {};
-
- // Get the current list of functions bound to this event
- var handlers = element.events[type];
-
- // If it hasn't been initialized yet
- if (!handlers) {
- // Init the event handler queue
- handlers = element.events[type] = {};
-
- // Remember an existing handler, if it's already there
- if (element["on" + type])
- handlers[0] = element["on" + type];
- }
-
- // Add the function to the element's handler list
- handlers[handler.guid] = handler;
-
- // And bind the global event handler to the element
- element["on" + type] = this.handle;
-
- // Remember the function in a global list (for triggering)
- if (!this.global[type])
- this.global[type] = [];
- this.global[type].push( element );
- },
-
- guid: 1,
- global: {},
-
- // Detach an event or set of events from an element
- remove: function(element, type, handler) {
- if (element.events)
- if ( type && type.type )
- delete element.events[ type.type ][ type.handler.guid ];
- else if (type && element.events[type])
- if ( handler )
- delete element.events[type][handler.guid];
- else
- for ( var i in element.events[type] )
- delete element.events[type][i];
- else
- for ( var j in element.events )
- this.remove( element, j );
- },
-
- trigger: function(type,data,element) {
- // Clone the incoming data, if any
- data = jQuery.makeArray(data || []);
-
- // Handle a global trigger
- if ( !element ) {
- var g = this.global[type];
- if ( g )
- for ( var i = 0, gl = g.length; i < gl; i++ )
- this.trigger( type, data, g[i] );
-
- // Handle triggering a single element
- } else if ( element["on" + type] ) {
- // Pass along a fake event
- data.unshift( this.fix({ type: type, target: element }) );
-
- // Trigger the event
- element["on" + type].apply( element, data );
- }
- },
-
- handle: function(event) {
- if ( typeof jQuery == "undefined" ) return false;
-
- event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
-
- // returned undefined or false
- var returnValue;
-
- var c = this.events[event.type];
-
- var 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();
- returnValue = 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 returnValue;
- },
-
- fix: function(event) {
- // Fix target property, if necessary
- if ( !event.target && event.srcElement )
- event.target = event.srcElement;
-
- // Calculate pageX/Y if missing and clientX/Y available
- if ( typeof event.pageX == "undefined" && typeof event.clientX != "undefined" ) {
- var e = document.documentElement, b = document.body;
- event.pageX = event.clientX + (e.scrollLeft || b.scrollLeft);
- event.pageY = event.clientY + (e.scrollTop || b.scrollTop);
- }
-
- // Check safari and if target is a textnode
- if ( jQuery.browser.safari && event.target.nodeType == 3 ) {
- // target is readonly, clone the event object
- event = jQuery.extend({}, event);
- // get parentnode from textnode
- event.target = event.target.parentNode;
- }
-
- // fix preventDefault and stopPropagation
- if (!event.preventDefault) {
- event.preventDefault = function() {
- this.returnValue = false;
- };
- }
-
- if (!event.stopPropagation) {
- event.stopPropagation = function() {
- this.cancelBubble = true;
- };
- }
-
- return event;
- }
}
});
empty: function(){
while ( this.firstChild )
this.removeChild( this.firstChild );
- },
-
- /**
- * Binds a handler to a particular event (like click) for each matched element.
- * 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").bind( "click", function() {
- * alert( $(this).text() );
- * } )
- * @before <p>Hello</p>
- * @result alert("Hello")
- *
- * @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 );
}
}
};
git.asbjorn.biz / jquery.git / commitdiff