Adding in support for bubbling submit and change events, thanks to the patch by Justin Meyer. Includes a delegation test suite for manually testing to see if the events work as intended.
This commit is contained in:
Justin Meyer
jeresig
parent
c6a0211e57
commit
d42afd0f65
4 changed files with 409 additions and 58 deletions
186
src/event.js
186
src/event.js
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@ -63,13 +63,7 @@ jQuery.event = {
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var handlers = events[ type ],
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special = this.special[ type ] || {};
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if ( special.add ) {
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var modifiedHandler = special.add.call( elem, handler, data, namespaces );
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if ( modifiedHandler && jQuery.isFunction( modifiedHandler ) ) {
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modifiedHandler.guid = modifiedHandler.guid || handler.guid;
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handler = modifiedHandler;
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}
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}
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// Init the event handler queue
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if ( !handlers ) {
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@ -78,7 +72,7 @@ jQuery.event = {
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// Check for a special event handler
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// Only use addEventListener/attachEvent if the special
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// events handler returns false
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if ( !special.setup || special.setup.call( elem, data, namespaces ) === false ) {
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if ( !special.setup || special.setup.call( elem, data, namespaces, handler) === false ) {
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// Bind the global event handler to the element
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if ( elem.addEventListener ) {
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elem.addEventListener( type, handle, false );
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@ -87,7 +81,15 @@ jQuery.event = {
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}
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}
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}
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if ( special.add ) {
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var modifiedHandler = special.add.call( elem, handler, data, namespaces, handlers );
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if ( modifiedHandler && jQuery.isFunction( modifiedHandler ) ) {
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modifiedHandler.guid = modifiedHandler.guid || handler.guid;
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handler = modifiedHandler;
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}
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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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@ -109,7 +111,7 @@ jQuery.event = {
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return;
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}
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var events = jQuery.data( elem, "events" ), ret, type;
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var events = jQuery.data( elem, "events" ), ret, type, fn;
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if ( events ) {
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// Unbind all events for the element
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@ -133,12 +135,14 @@ jQuery.event = {
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var namespaces = type.split(".");
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type = namespaces.shift();
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var all = !namespaces.length,
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namespace = new RegExp("(^|\\.)" + namespaces.slice(0).sort().join("\\.(?:.*\\.)?") + "(\\.|$)"),
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cleaned = jQuery.map( namespaces.slice(0).sort() , function(nm){ return nm.replace(/[^\w\s\.\|`]/g, function(ch){return "\\"+ch }) }),
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namespace = new RegExp("(^|\\.)" + cleaned.join("\\.(?:.*\\.)?") + "(\\.|$)"),
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special = this.special[ type ] || {};
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if ( events[ type ] ) {
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// remove the given handler for the given type
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if ( handler ) {
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fn = events[ type ][ handler.guid ];
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delete events[ type ][ handler.guid ];
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// remove all handlers for the given type
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@ -152,7 +156,7 @@ jQuery.event = {
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}
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if ( special.remove ) {
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special.remove.call( elem, namespaces );
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special.remove.call( elem, namespaces, fn);
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}
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// remove generic event handler if no more handlers exist
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@ -402,10 +406,12 @@ jQuery.event = {
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},
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live: {
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add: function( proxy, data, namespaces ) {
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add: function( proxy, data, namespaces, live ) {
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jQuery.extend( proxy, data || {} );
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proxy.guid += data.selector + data.live;
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jQuery.event.add( this, data.live, liveHandler, data );
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proxy.guid += data.selector + data.live;
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jQuery.event.add( this, data.live, liveHandler, data );
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},
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remove: function( namespaces ) {
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@ -422,7 +428,8 @@ jQuery.event = {
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jQuery.event.remove( this, namespaces[0], liveHandler );
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}
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}
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}
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},
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special: {}
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}
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}
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};
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@ -542,40 +549,110 @@ jQuery.each({
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};
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});
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(function() {
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var event = jQuery.event,
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special = event.special,
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handle = event.handle;
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// submit delegation
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jQuery.event.special.submit = {
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setup: function( data, namespaces, fn ) {
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if ( !jQuery.support.submitBubbles && this.nodeName.toLowerCase() !== "form" ) {
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jQuery.event.add(this, "click.specialSubmit." + fn.guid, function( e ) {
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var elem = e.target, type = elem.type;
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special.submit = {
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setup: function(data, namespaces) {
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if(data.selector) {
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event.add(this, 'click.specialSubmit', function(e, eventData) {
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if(jQuery(e.target).filter(":submit, :image").closest(data.selector).length) {
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e.type = "submit";
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return handle.call( this, e, eventData );
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}
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});
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event.add(this, 'keypress.specialSubmit', function( e, eventData ) {
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if(jQuery(e.target).filter(":text, :password").closest(data.selector).length) {
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e.type = "submit";
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return handle.call( this, e, eventData );
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}
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});
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} else {
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return false;
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if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {
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return trigger( "submit", this, arguments );
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}
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});
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jQuery.event.add(this, "keypress.specialSubmit." + fn.guid, function( e ) {
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var elem = e.target, type = elem.type;
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if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {
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return trigger( "submit", this, arguments );
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}
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});
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}
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return false;
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},
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remove: function( namespaces, fn ) {
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jQuery.event.remove( this, "click.specialSubmit" + (fn ? "."+fn.guid : "") );
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jQuery.event.remove( this, "keypress.specialSubmit" + (fn ? "."+fn.guid : "") );
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}
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};
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// change delegation, happens here so we have bind.
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jQuery.event.special.change = {
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filters: {
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click: function( e ) {
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var elem = e.target;
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if ( elem.nodeName.toLowerCase() === "input" && elem.type === "checkbox" ) {
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return trigger( "change", this, arguments );
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}
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return changeFilters.keyup.call( this, e );
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},
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keyup: function( e ) {
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var elem = e.target, data, index = elem.selectedIndex + "";
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if ( elem.nodeName.toLowerCase() === "select" ) {
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data = jQuery.data( elem, "_change_data" );
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jQuery.data( elem, "_change_data", index );
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if ( (elem.type === "select-multiple" || data != null) && data !== index ) {
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return trigger( "change", this, arguments );
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}
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}
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},
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remove: function(namespaces) {
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event.remove(this, 'click.specialSubmit');
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event.remove(this, 'keypress.specialSubmit');
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beforeactivate: function( e ) {
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var elem = e.target;
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if ( elem.nodeName.toLowerCase() === "input" && elem.type === "radio" && !elem.checked ) {
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return trigger( "change", this, arguments );
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}
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},
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blur: function( e ) {
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var elem = e.target, nodeName = elem.nodeName.toLowerCase();
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if ( (nodeName === "textarea" || (nodeName === "input" && (elem.type === "text" || elem.type === "password")))
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&& jQuery.data(elem, "_change_data") !== elem.value ) {
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return trigger( "change", this, arguments );
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}
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},
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focus: function( e ) {
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var elem = e.target, nodeName = elem.nodeName.toLowerCase();
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if ( nodeName === "textarea" || (nodeName === "input" && (elem.type === "text" || elem.type === "password" ) ) ) {
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jQuery.data( elem, "_change_data", elem.value );
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}
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}
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};
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})();
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},
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setup: function( data, namespaces, fn ) {
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// return false if we bubble
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if ( !jQuery.support.changeBubbles ) {
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for ( var type in changeFilters ) {
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jQuery.event.add( this, type + ".specialChange." + fn.guid, changeFilters[type] );
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}
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}
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// always want to listen for change for trigger
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return false;
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},
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remove: function( namespaces, fn ) {
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if ( !jQuery.support.changeBubbles ) {
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for ( var type in changeFilters ) {
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jQuery.event.remove( this, type + ".specialChange" + (fn ? "."+fn.guid : ""), changeFilters[type] );
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}
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}
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}
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};
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var changeFilters = jQuery.event.special.change.filters;
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function trigger( type, elem, args ) {
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args[0].type = type;
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return jQuery.event.handle.apply( elem, args );
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}
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// Create "bubbling" focus and blur events
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jQuery.each({
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@ -750,12 +827,19 @@ jQuery.fn.extend({
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function liveHandler( event ) {
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var stop = true, elems = [], selectors = [], args = arguments,
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related, match, fn, elem, j, i,
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related, match, fn, elem, j, i, data,
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live = jQuery.extend({}, jQuery.data( this, "events" ).live);
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for ( j in live ) {
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if ( live[j].live === event.type ) {
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selectors.push( live[j].selector );
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fn = live[j];
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if ( fn.live === event.type ||
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fn.altLive && jQuery.inArray(event.type, fn.altLive) > -1 ) {
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data = fn.data;
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if ( !(data.beforeFilter && data.beforeFilter[event.type] &&
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!data.beforeFilter[event.type](event)) ) {
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selectors.push( fn.selector );
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}
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} else {
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delete live[j];
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}
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@ -796,7 +880,9 @@ function liveHandler( event ) {
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}
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function liveConvert( type, selector ) {
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return ["live", type, selector.replace(/\./g, "`").replace(/ /g, "|")].join(".");
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return ["live", type, selector//.replace(/[^\w\s\.]/g, function(ch){ return "\\"+ch})
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.replace(/\./g, "`")
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.replace(/ /g, "|")].join(".");
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}
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jQuery.extend({
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@ -91,6 +91,25 @@
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div = null;
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});
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// Technique from Juriy Zaytsev
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// http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/
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var eventSupported = function( eventName ) {
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var el = document.createElement("div");
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eventName = "on" + eventName;
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var isSupported = (eventName in el);
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if ( !isSupported ) {
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el.setAttribute(eventName, "return;");
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isSupported = typeof el[eventName] === "function";
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}
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el = null;
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return isSupported;
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};
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jQuery.support.submitBubbles = eventSupported("submit");
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jQuery.support.changeBubbles = eventSupported("change");
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// release memory in IE
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root = script = div = all = a = null;
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})();
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123
test/delegatetest.html
Normal file
123
test/delegatetest.html
Normal file
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@ -0,0 +1,123 @@
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<html>
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<head>
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<script src='../dist/jquery.js' type='text/javascript'></script>
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<style>
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.red {
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background-color: red;
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border: solid 3px red;
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}
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</style>
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</head>
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<body>
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<h2>Change Tests</h2>
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<table>
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<tr>
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<td>
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Change each:
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</td>
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<td>
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<select class='select_test'>
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<option value='one'>change me 1</option>
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<option value='two'>change me 2</option>
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<option value='three'>change me 3</option>
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</select>
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</td>
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<td>
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<select class='mselect_test' multiple="multiple">
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<option value='one'>change me 1</option>
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<option value='two'>change me 2</option>
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<option value='three'>change me 3</option>
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</select>
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</td>
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<td>
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<input type="checkbox" class="checkbox_test" name="mycheckbox" id="checkbox1"/>
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<label for="checkbox1">Checkbox 1 label</label><br/>
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<input type="checkbox" class="checkbox_test" name="mycheckbox" id="checkbox2"/>
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<label for="checkbox2">Checkbox 2 label</label>
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</td>
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<td>
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<input type="radio" class="radio_test" name="myradio" id="radio1"/>
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<label for="radio1">Radio 1 label</label><br/>
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<input type="radio" class="radio_test" name="myradio" id="radio2"/>
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<label for="radio2">Radio 2 label</label>
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</td>
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<td>
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<input class='test' value='' id='input' size='10' />
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</td>
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<td>
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<textarea rows='2'></textarea>
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</td>
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<td>$().bind('change')</td>
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</tr>
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<tr>
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<td>Results:</td>
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<td id='select' class="red">SELECT</td>
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<td id='mselect' class="red">MULTI</td>
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<td id='checkbox' class="red">CHECKBOX</td>
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<td id='radio' class="red">RADIO</td>
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<td id='text' class="red">TEXT</td>
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<td id='textarea' class="red">TEXTAREA</td>
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<td id='boundChange' class="red">DOCUMENT</td>
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</tr>
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</table>
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<h2>Submit Tests</h2>
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<table>
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<tr>
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<td>
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Submit each:
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</td>
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<td>
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<form action="" id="text_submit">
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<input class='test' type='text' value='Key Return To Submit'/>
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</form>
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</td>
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<td>
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<form action="" id="password_submit">
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<input class='test' type='password' value=''/>
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</form>
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</td>
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<td>
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<form action="" id="submit_submit">
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<input type='submit' value="Click Me To Submit" />
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</form>
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</td>
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<td>$().bind('submit')</td>
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</tr>
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<tr>
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<td>Results:</td>
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<td id='textSubmit' class="red">TEXT</td>
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<td id='passwordSubmit' class="red">PASSWORD</td>
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<td id='submitSubmit' class="red">BUTTON</td>
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<td id='boundSubmit' class="red">DOCUMENT</td>
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</tr>
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</table>
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<script type='text/javascript'>
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makeChangeFunc = function(id, prevent){
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return function(e){
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if(prevent)
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e.preventDefault();
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$(id).css("backgroundColor","green").css("border","solid 3px green");
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setTimeout(function(){
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$(id).css("backgroundColor","");
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}, 700)
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}
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}
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$(".select_test").live("change",makeChangeFunc("#select"))
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$(".mselect_test").live("change",makeChangeFunc("#mselect"))
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$(".checkbox_test").live("change",makeChangeFunc("#checkbox"))
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$(".radio_test").live("change",makeChangeFunc("#radio"))
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$('textarea').live('change', makeChangeFunc("#textarea"))
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$('#input').live('change', makeChangeFunc("#text"))
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$().bind('change', makeChangeFunc("#boundChange"))
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$("#text_submit").live("submit", makeChangeFunc("#textSubmit", true) )
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$("#password_submit").live("submit", makeChangeFunc("#passwordSubmit", true) )
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$("#submit_submit").live("submit", makeChangeFunc("#submitSubmit", true) )
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$().bind('submit', makeChangeFunc("#boundSubmit"))
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</script>
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</body>
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</html>
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@ -820,20 +820,143 @@ test(".live()/.die()", function() {
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jQuery('span#liveSpan1').die('click');
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});
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test("live with submit", function() {
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var count = 0;
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test("live with change", function(){
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var selectChange = 0, checkboxChange = 0;
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jQuery("#testForm").live("submit", function() {
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count++;
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return false;
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var select = jQuery("select[name='S1']")
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select.live("change", function() {
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selectChange++;
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});
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jQuery("#testForm input[name=sub1]")[0].click();
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jQuery("#testForm input[name=T1]").trigger({type: "keypress", keyCode: 13});
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var checkbox = jQuery("#check2"),
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checkboxFunction = function(){
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checkboxChange++;
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}
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checkbox.live("change", checkboxFunction);
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equals(2, count);
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// test click on select
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// first click sets data
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if ( !jQuery.support.changeBubbles ) {
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select[0].selectedIndex = 1;
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select.trigger("keyup");
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}
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// second click that changed it
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selectChange = 0;
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select[0].selectedIndex = select[0].selectedIndex ? 0 : 1;
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select.trigger(jQuery.support.changeBubbles ? "change" : "click");
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equals( selectChange, 1, "Change on click." );
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// test keys on select
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selectChange = 0;
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select[0].selectedIndex = select[0].selectedIndex ? 0 : 1;
|
||||
select.trigger(jQuery.support.changeBubbles ? "change" : "keyup");
|
||||
equals( selectChange, 1, "Change on keyup." );
|
||||
|
||||
// test click on checkbox
|
||||
checkbox.trigger(jQuery.support.changeBubbles ? "change" : "click");
|
||||
equals( checkboxChange, 1, "Change on checkbox." );
|
||||
|
||||
// test before activate on radio
|
||||
|
||||
// test blur/focus on textarea
|
||||
var textarea = jQuery("#area1"), textareaChange = 0, oldVal = textarea.val();
|
||||
textarea.live("change", function() {
|
||||
textareaChange++;
|
||||
});
|
||||
|
||||
if ( !jQuery.support.changeBubbles ) {
|
||||
textarea.trigger("focus");
|
||||
}
|
||||
|
||||
textarea.val(oldVal + "foo");
|
||||
textarea.trigger(jQuery.support.changeBubbles ? "change" : "blur");
|
||||
equals( textareaChange, 1, "Change on textarea." );
|
||||
|
||||
textarea.val(oldVal);
|
||||
textarea.die("change");
|
||||
|
||||
// test blur/focus on text
|
||||
var text = jQuery("#name"), textChange = 0, oldTextVal = text.val();
|
||||
text.live("change", function() {
|
||||
textChange++;
|
||||
});
|
||||
|
||||
if ( !jQuery.support.changeBubbles ) {
|
||||
text.trigger("focus");
|
||||
}
|
||||
|
||||
text.val(oldVal+"foo");
|
||||
text.trigger(jQuery.support.changeBubbles ? "change" : "blur");
|
||||
equals( textChange, 1, "Change on text input." );
|
||||
|
||||
text.val(oldTextVal);
|
||||
text.die("change");
|
||||
|
||||
// test blur/focus on password
|
||||
var password = jQuery("#name"), passwordChange = 0, oldPasswordVal = password.val();
|
||||
password.live("change", function() {
|
||||
passwordChange++;
|
||||
});
|
||||
|
||||
if ( !jQuery.support.changeBubbles ) {
|
||||
password.trigger("focus");
|
||||
}
|
||||
|
||||
password.val(oldPasswordVal + "foo");
|
||||
password.trigger(jQuery.support.changeBubbles ? "change" : "blur");
|
||||
equals( passwordChange, 1, "Change on password input." );
|
||||
|
||||
password.val(oldPasswordVal);
|
||||
password.die("change");
|
||||
|
||||
// make sure die works
|
||||
|
||||
// die all changes
|
||||
selectChange = 0;
|
||||
select.die("change");
|
||||
select[0].selectedIndex = select[0].selectedIndex ? 0 : 1;
|
||||
select.trigger(jQuery.support.changeBubbles ? "change" : "click");
|
||||
equals( selectChange, 0, "Die on click works." );
|
||||
|
||||
selectChange = 0;
|
||||
select[0].selectedIndex = select[0].selectedIndex ? 0 : 1;
|
||||
select.trigger(jQuery.support.changeBubbles ? "change" : "keyup");
|
||||
equals( selectChange, 0, "Die on keyup works." );
|
||||
|
||||
// die specific checkbox
|
||||
checkbox.die("change", checkboxFunction);
|
||||
checkbox.trigger(jQuery.support.changeBubbles ? "change" : "click");
|
||||
equals( checkboxChange, 1, "Die on checkbox." );
|
||||
});
|
||||
|
||||
test("live with submit", function() {
|
||||
var count1 = 0, count2 = 0;
|
||||
|
||||
jQuery("#testForm").live("submit", function(ev) {
|
||||
count1++;
|
||||
ev.preventDefault();
|
||||
});
|
||||
|
||||
jQuery("body").live("submit", function(ev) {
|
||||
count2++;
|
||||
ev.preventDefault();
|
||||
});
|
||||
|
||||
if ( jQuery.support.submitBubbles ) {
|
||||
jQuery("#testForm input[name=sub1]")[0].click();
|
||||
equals(count1,1 );
|
||||
equals(count2,1);
|
||||
} else {
|
||||
jQuery("#testForm input[name=sub1]")[0].click();
|
||||
jQuery("#testForm input[name=T1]").trigger({type: "keypress", keyCode: 13});
|
||||
equals(count1,2);
|
||||
equals(count2,2);
|
||||
}
|
||||
|
||||
jQuery("#testForm").die("submit");
|
||||
jQuery("body").die("submit");
|
||||
});
|
||||
|
||||
test("live with focus/blur", function(){
|
||||
|
|
|
|||
Loading…
Reference in a new issue