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Rewrite IE special change/submit to make it faster/shorter. Fixes #6319.

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Dave Methvin 2011-08-06 10:19:49 -04:00 committed by timmywil
parent 0dc7b16e94
commit df6e0d508e
1 changed files with 49 additions and 52 deletions
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101
src/event.js
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@ -721,32 +721,29 @@ if ( !jQuery.support.submitBubbles ) {
jQuery.event.special.submit = {
setup: function( data, namespaces ) {
if ( !jQuery.nodeName( this, "form" ) ) {
jQuery.event.add(this, "click.specialSubmit", function( e ) {
// Avoid triggering error on non-existent type attribute in IE VML (#7071)
jQuery.event.add(this, "click._submit", function( e ) {
var elem = e.target,
type = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.type : "";
if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {
trigger( "submit", this, arguments );
trigger( "submit", this, arguments );
if ( (type === "submit" || type === "image") && elem.form ) {
trigger( "submit", this, e );
}
});
jQuery.event.add(this, "keypress.specialSubmit", function( e ) {
jQuery.event.add(this, "keypress._submit", function( e ) {
var elem = e.target,
type = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.type : "";
if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {
trigger( "submit", this, arguments );
if ( (type === "text" || type === "password") && elem.form && e.keyCode === 13 ) {
trigger( "submit", this, e );
}
});
} else {
return false;
}
},
teardown: function( namespaces ) {
jQuery.event.remove( this, ".specialSubmit" );
jQuery.event.remove( this, "._submit" );
}
};
@ -755,7 +752,9 @@ if ( !jQuery.support.submitBubbles ) {
// change delegation, happens here so we have bind.
if ( !jQuery.support.changeBubbles ) {
var changeFilters,
var getVal = function( elem ) {
var type = elem.type,
val = elem.value;
getVal = function( elem ) {
var type = jQuery.nodeName( elem, "input" ) ? elem.type : "",
@ -764,28 +763,29 @@ if ( !jQuery.support.changeBubbles ) {
if ( type === "radio" || type === "checkbox" ) {
val = elem.checked;
} else if ( type === "select-one" ) {
val = elem.selectedIndex;
} else if ( type === "select-multiple" ) {
val = elem.selectedIndex > -1 ?
jQuery.map( elem.options, function( elem ) {
return elem.selected;
}).join("-") :
"";
} else if ( jQuery.nodeName( elem, "select" ) ) {
val = elem.selectedIndex;
}
return val;
},
testChange = function testChange( e ) {
var elem = e.target, data, val;
var elem = e.target,
old, val;
if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {
return;
}
data = jQuery._data( elem, "_change_data" );
old = jQuery._data( elem, "_change_data" );
val = getVal(elem);
// the current data will be also retrieved by beforeactivate
@ -793,27 +793,22 @@ if ( !jQuery.support.changeBubbles ) {
jQuery._data( elem, "_change_data", val );
}
if ( data === undefined || val === data ) {
return;
if ( val !== old && old != null || val ) {
trigger( "change", elem, e );
}
},
if ( data != null || val ) {
e.type = "change";
e.liveFired = undefined;
jQuery.event.trigger( e, arguments[1], elem );
}
};
jQuery.event.special.change = {
filters: {
changeFilters = {
focusout: testChange,
beforedeactivate: testChange,
click: function( e ) {
var elem = e.target, type = jQuery.nodeName( elem, "input" ) ? elem.type : "";
var elem = e.target,
name = elem.nodeName.toLowerCase(),
type = name === "input"? elem.type : "";
if ( type === "radio" || type === "checkbox" || jQuery.nodeName( elem, "select" ) ) {
if ( type === "radio" || type === "checkbox" || name === "select" ) {
testChange.call( this, e );
}
},
@ -821,9 +816,11 @@ if ( !jQuery.support.changeBubbles ) {
// Change has to be called before submit
// Keydown will be called before keypress, which is used in submit-event delegation
keydown: function( e ) {
var elem = e.target, type = jQuery.nodeName( elem, "input" ) ? elem.type : "";
var elem = e.target,
name = elem.nodeName.toLowerCase(),
type = name === "input"? elem.type : "";
if ( (e.keyCode === 13 && !jQuery.nodeName( elem, "textarea" ) ) ||
if ( (e.keyCode === 13 && name !== "textarea") ||
(e.keyCode === 32 && (type === "checkbox" || type === "radio")) ||
type === "select-multiple" ) {
testChange.call( this, e );
@ -831,51 +828,51 @@ if ( !jQuery.support.changeBubbles ) {
},
// Beforeactivate happens also before the previous element is blurred
// with this event you can't trigger a change event, but you can store
// information
// here, you can't trigger a change event, but you can store data
beforeactivate: function( e ) {
var elem = e.target;
jQuery._data( elem, "_change_data", getVal(elem) );
}
},
// Update the current value if we're not re-focusing (#8157)
focus: function( e ) {
var elem = e.target;
if ( elem != document.activeElement ) {
jQuery._data( elem, "_change_data", getVal(elem) );
}
}
};
jQuery.event.special.change = {
setup: function( data, namespaces ) {
if ( this.type === "file" ) {
return false;
}
for ( var type in changeFilters ) {
jQuery.event.add( this, type + ".specialChange", changeFilters[type] );
jQuery.event.add( this, type + "._change", changeFilters[type] );
}
return rformElems.test( this.nodeName );
},
teardown: function( namespaces ) {
jQuery.event.remove( this, ".specialChange" );
jQuery.event.remove( this, "._change" );
return rformElems.test( this.nodeName );
}
};
changeFilters = jQuery.event.special.change.filters;
// Handle when the input is .focus()'d
changeFilters.focus = changeFilters.beforeactivate;
}
function trigger( type, elem, args ) {
function trigger( type, elem, event ) {
// Piggyback on a donor event to simulate a different one.
// Fake originalEvent to avoid donor's stopPropagation, but if the
// simulated event prevents default then we do the same on the donor.
// Don't pass args or remember liveFired; they apply to the donor event.
var event = jQuery.extend( {}, args[ 0 ] );
event.type = type;
event.originalEvent = {};
event.liveFired = undefined;
jQuery.event.handle.call( elem, event );
if ( event.isDefaultPrevented() ) {
args[ 0 ].preventDefault();
var e = jQuery.extend( {}, event, { type: type, originalEvent: {} } );
jQuery.event.handle.call( elem, e );
if ( e.isDefaultPrevented() ) {
event.preventDefault();
}
}