mirror of
https://github.com/jquery/jquery.git
synced 2024-11-23 02:54:22 +00:00
637 lines
17 KiB
JavaScript
637 lines
17 KiB
JavaScript
var nodeHook, boolHook, fixSpecified,
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rclass = /[\t\r\n]/g,
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rreturn = /\r/g,
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rtype = /^(?:button|input)$/i,
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rfocusable = /^(?:button|input|object|select|textarea)$/i,
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rclickable = /^a(?:rea|)$/i,
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rboolean = /^(?:autofocus|autoplay|async|checked|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped|selected)$/i,
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getSetAttribute = jQuery.support.getSetAttribute;
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jQuery.fn.extend({
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attr: function( name, value ) {
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return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
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},
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removeAttr: function( name ) {
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return this.each(function() {
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jQuery.removeAttr( this, name );
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});
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},
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prop: function( name, value ) {
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return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
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},
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removeProp: function( name ) {
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name = jQuery.propFix[ name ] || name;
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return this.each(function() {
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// try/catch handles cases where IE balks (such as removing a property on window)
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try {
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this[ name ] = undefined;
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delete this[ name ];
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} catch( e ) {}
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});
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},
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addClass: function( value ) {
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var classNames, i, l, elem,
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setClass, c, cl;
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if ( jQuery.isFunction( value ) ) {
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return this.each(function( j ) {
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jQuery( this ).addClass( value.call(this, j, this.className) );
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});
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}
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if ( value && typeof value === "string" ) {
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classNames = value.split( core_rspace );
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for ( i = 0, l = this.length; i < l; i++ ) {
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elem = this[ i ];
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if ( elem.nodeType === 1 ) {
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if ( !elem.className && classNames.length === 1 ) {
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elem.className = value;
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} else {
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setClass = " " + elem.className + " ";
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for ( c = 0, cl = classNames.length; c < cl; c++ ) {
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if ( setClass.indexOf( " " + classNames[ c ] + " " ) < 0 ) {
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setClass += classNames[ c ] + " ";
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}
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}
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elem.className = jQuery.trim( setClass );
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}
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}
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}
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}
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return this;
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},
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removeClass: function( value ) {
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var removes, className, elem, c, cl, i, l;
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if ( jQuery.isFunction( value ) ) {
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return this.each(function( j ) {
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jQuery( this ).removeClass( value.call(this, j, this.className) );
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});
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}
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if ( (value && typeof value === "string") || !arguments.length ) {
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removes = ( value || "" ).split( core_rspace );
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for ( i = 0, l = this.length; i < l; i++ ) {
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elem = this[ i ];
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if ( elem.nodeType === 1 && elem.className ) {
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className = (" " + elem.className + " ").replace( rclass, " " );
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// loop over each item in the removal list
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for ( c = 0, cl = removes.length; c < cl; c++ ) {
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// Remove until there is nothing to remove,
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while ( className.indexOf(" " + removes[ c ] + " ") >= 0 ) {
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className = className.replace( " " + removes[ c ] + " " , " " );
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}
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}
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elem.className = value ? jQuery.trim( className ) : "";
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}
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}
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}
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return this;
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},
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toggleClass: function( value, stateVal ) {
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var type = typeof value,
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isBool = typeof stateVal === "boolean";
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if ( jQuery.isFunction( value ) ) {
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return this.each(function( i ) {
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jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
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});
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}
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return this.each(function() {
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if ( type === "string" ) {
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// toggle individual class names
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var className,
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i = 0,
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self = jQuery( this ),
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state = stateVal,
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classNames = value.split( core_rspace );
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while ( (className = classNames[ i++ ]) ) {
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// check each className given, space separated list
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state = isBool ? state : !self.hasClass( className );
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self[ state ? "addClass" : "removeClass" ]( className );
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}
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// Toggle whole class name
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} else if ( type === "undefined" || type === "boolean" ) {
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if ( this.className ) {
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// store className if set
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jQuery._data( this, "__className__", this.className );
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}
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// If the element has a class name or if we're passed "false",
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// then remove the whole classname (if there was one, the above saved it).
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// Otherwise bring back whatever was previously saved (if anything),
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// falling back to the empty string if nothing was stored.
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this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
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}
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});
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},
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hasClass: function( selector ) {
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var className = " " + selector + " ",
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i = 0,
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l = this.length;
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for ( ; i < l; i++ ) {
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if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
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return true;
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}
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}
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return false;
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},
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val: function( value ) {
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var hooks, ret, isFunction,
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elem = this[0];
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if ( !arguments.length ) {
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if ( elem ) {
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hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
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if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
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return ret;
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}
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ret = elem.value;
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return typeof ret === "string" ?
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// handle most common string cases
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ret.replace(rreturn, "") :
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// handle cases where value is null/undef or number
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ret == null ? "" : ret;
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}
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return;
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}
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isFunction = jQuery.isFunction( value );
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return this.each(function( i ) {
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var val,
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self = jQuery(this);
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if ( this.nodeType !== 1 ) {
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return;
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}
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if ( isFunction ) {
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val = value.call( this, i, self.val() );
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} else {
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val = value;
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}
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// Treat null/undefined as ""; convert numbers to string
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if ( val == null ) {
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val = "";
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} else if ( typeof val === "number" ) {
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val += "";
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} else if ( jQuery.isArray( val ) ) {
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val = jQuery.map(val, function ( value ) {
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return value == null ? "" : value + "";
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});
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}
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hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
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// If set returns undefined, fall back to normal setting
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if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
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this.value = val;
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}
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});
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}
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});
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jQuery.extend({
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valHooks: {
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option: {
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get: function( elem ) {
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// attributes.value is undefined in Blackberry 4.7 but
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// uses .value. See #6932
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var val = elem.attributes.value;
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return !val || val.specified ? elem.value : elem.text;
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}
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},
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select: {
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get: function( elem ) {
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var value, option,
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options = elem.options,
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index = elem.selectedIndex,
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one = elem.type === "select-one" || index < 0,
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values = one ? null : [],
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max = one ? index + 1 : options.length,
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i = index < 0 ?
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max :
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one ? index : 0;
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// Loop through all the selected options
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for ( ; i < max; i++ ) {
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option = options[ i ];
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// oldIE doesn't update selected after form reset (#2551)
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if ( ( option.selected || i === index ) &&
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// Don't return options that are disabled or in a disabled optgroup
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( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
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( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
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// Get the specific value for the option
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value = jQuery( option ).val();
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// We don't need an array for one selects
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if ( one ) {
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return value;
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}
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// Multi-Selects return an array
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values.push( value );
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}
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}
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return values;
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},
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set: function( elem, value ) {
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var values = jQuery.makeArray( value );
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jQuery(elem).find("option").each(function() {
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this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
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});
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if ( !values.length ) {
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elem.selectedIndex = -1;
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}
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return values;
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}
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}
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},
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attr: function( elem, name, value ) {
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var ret, hooks, notxml,
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nType = elem.nodeType;
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// don't get/set attributes on text, comment and attribute nodes
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if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
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return;
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}
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// Fallback to prop when attributes are not supported
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if ( typeof elem.getAttribute === "undefined" ) {
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return jQuery.prop( elem, name, value );
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}
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notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
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// All attributes are lowercase
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// Grab necessary hook if one is defined
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if ( notxml ) {
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name = name.toLowerCase();
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hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
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}
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if ( value !== undefined ) {
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if ( value === null ) {
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jQuery.removeAttr( elem, name );
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} else if ( hooks && notxml && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
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return ret;
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} else {
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elem.setAttribute( name, value + "" );
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return value;
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}
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} else if ( hooks && notxml && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
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return ret;
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} else {
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ret = elem.getAttribute( name );
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// Non-existent attributes return null, we normalize to undefined
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return ret === null ?
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undefined :
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ret;
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}
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},
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removeAttr: function( elem, value ) {
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var propName, attrNames, name, isBool,
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i = 0;
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if ( value && elem.nodeType === 1 ) {
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attrNames = value.split( core_rspace );
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for ( ; i < attrNames.length; i++ ) {
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name = attrNames[ i ];
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if ( name ) {
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propName = jQuery.propFix[ name ] || name;
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isBool = rboolean.test( name );
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// See #9699 for explanation of this approach (setting first, then removal)
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// Do not do this for boolean attributes (see #10870)
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if ( !isBool ) {
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jQuery.attr( elem, name, "" );
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}
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elem.removeAttribute( getSetAttribute ? name : propName );
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// Set corresponding property to false for boolean attributes
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if ( isBool && propName in elem ) {
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elem[ propName ] = false;
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}
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}
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}
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}
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},
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attrHooks: {
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type: {
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set: function( elem, value ) {
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// We can't allow the type property to be changed (since it causes problems in IE)
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if ( rtype.test( elem.nodeName ) && elem.parentNode ) {
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jQuery.error( "type property can't be changed" );
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} else if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
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// Setting the type on a radio button after the value resets the value in IE6-9
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// Reset value to it's default in case type is set after value
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// This is for element creation
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var val = elem.value;
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elem.setAttribute( "type", value );
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if ( val ) {
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elem.value = val;
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}
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return value;
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}
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}
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},
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// Use the value property for back compat
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// Use the nodeHook for button elements in IE6/7 (#1954)
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value: {
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get: function( elem, name ) {
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if ( nodeHook && jQuery.nodeName( elem, "button" ) ) {
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return nodeHook.get( elem, name );
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}
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return name in elem ?
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elem.value :
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null;
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},
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set: function( elem, value, name ) {
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if ( nodeHook && jQuery.nodeName( elem, "button" ) ) {
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return nodeHook.set( elem, value, name );
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}
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// Does not return so that setAttribute is also used
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elem.value = value;
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}
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}
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},
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propFix: {
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tabindex: "tabIndex",
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readonly: "readOnly",
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"for": "htmlFor",
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"class": "className",
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maxlength: "maxLength",
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cellspacing: "cellSpacing",
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cellpadding: "cellPadding",
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rowspan: "rowSpan",
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colspan: "colSpan",
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usemap: "useMap",
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frameborder: "frameBorder",
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contenteditable: "contentEditable"
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},
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prop: function( elem, name, value ) {
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var ret, hooks, notxml,
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nType = elem.nodeType;
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// don't get/set properties on text, comment and attribute nodes
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if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
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return;
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}
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notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
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if ( notxml ) {
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// Fix name and attach hooks
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name = jQuery.propFix[ name ] || name;
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hooks = jQuery.propHooks[ name ];
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}
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if ( value !== undefined ) {
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if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
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return ret;
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} else {
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return ( elem[ name ] = value );
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}
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} else {
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if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
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return ret;
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} else {
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return elem[ name ];
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}
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}
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},
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propHooks: {
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tabIndex: {
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get: function( elem ) {
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// elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
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// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
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var attributeNode = elem.getAttributeNode("tabindex");
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return attributeNode && attributeNode.specified ?
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parseInt( attributeNode.value, 10 ) :
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rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
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0 :
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undefined;
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}
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}
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}
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});
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// Hook for boolean attributes
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boolHook = {
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get: function( elem, name ) {
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// Align boolean attributes with corresponding properties
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// Fall back to attribute presence where some booleans are not supported
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var attrNode,
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property = jQuery.prop( elem, name );
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return property === true || typeof property !== "boolean" && ( attrNode = elem.getAttributeNode(name) ) && attrNode.nodeValue !== false ?
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name.toLowerCase() :
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undefined;
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},
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set: function( elem, value, name ) {
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var propName;
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if ( value === false ) {
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// Remove boolean attributes when set to false
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jQuery.removeAttr( elem, name );
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} else {
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// value is true since we know at this point it's type boolean and not false
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// Set boolean attributes to the same name and set the DOM property
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propName = jQuery.propFix[ name ] || name;
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if ( propName in elem ) {
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// Only set the IDL specifically if it already exists on the element
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elem[ propName ] = true;
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}
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elem.setAttribute( name, name.toLowerCase() );
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}
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return name;
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}
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};
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// IE6/7 do not support getting/setting some attributes with get/setAttribute
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if ( !getSetAttribute ) {
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fixSpecified = {
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name: true,
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id: true,
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coords: true
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};
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// Use this for any attribute in IE6/7
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// This fixes almost every IE6/7 issue
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nodeHook = jQuery.valHooks.button = {
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get: function( elem, name ) {
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var ret;
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ret = elem.getAttributeNode( name );
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return ret && ( fixSpecified[ name ] ? ret.value !== "" : ret.specified ) ?
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ret.value :
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undefined;
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},
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set: function( elem, value, name ) {
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// Set the existing or create a new attribute node
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var ret = elem.getAttributeNode( name );
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if ( !ret ) {
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ret = elem.ownerDocument.createAttribute( name );
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elem.setAttributeNode( ret );
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}
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return ( ret.value = value + "" );
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}
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};
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// Set width and height to auto instead of 0 on empty string( Bug #8150 )
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// This is for removals
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jQuery.each([ "width", "height" ], function( i, name ) {
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jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
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set: function( elem, value ) {
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if ( value === "" ) {
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elem.setAttribute( name, "auto" );
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return value;
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}
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}
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});
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});
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// Set contenteditable to false on removals(#10429)
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// Setting to empty string throws an error as an invalid value
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jQuery.attrHooks.contenteditable = {
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get: nodeHook.get,
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set: function( elem, value, name ) {
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if ( value === "" ) {
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value = "false";
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}
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nodeHook.set( elem, value, name );
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}
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};
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}
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// Some attributes require a special call on IE
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|
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
|
|
if ( !jQuery.support.hrefNormalized ) {
|
|
jQuery.each([ "href", "src", "width", "height" ], function( i, name ) {
|
|
jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
|
|
get: function( elem ) {
|
|
var ret = elem.getAttribute( name, 2 );
|
|
return ret === null ? undefined : ret;
|
|
}
|
|
});
|
|
});
|
|
|
|
// link's href property should get the full normalized URL (#10299)
|
|
jQuery.propHooks.href = {
|
|
get: function( elem, name ) {
|
|
return elem.getAttribute( name, 4 );
|
|
}
|
|
};
|
|
}
|
|
|
|
if ( !jQuery.support.style ) {
|
|
jQuery.attrHooks.style = {
|
|
get: function( elem ) {
|
|
// Return undefined in the case of empty string
|
|
// Normalize to lowercase since IE uppercases css property names
|
|
return elem.style.cssText.toLowerCase() || undefined;
|
|
},
|
|
set: function( elem, value ) {
|
|
return ( elem.style.cssText = value + "" );
|
|
}
|
|
};
|
|
}
|
|
|
|
// Safari mis-reports the default selected property of an option
|
|
// Accessing the parent's selectedIndex property fixes it
|
|
if ( !jQuery.support.optSelected ) {
|
|
jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
|
|
get: function( elem ) {
|
|
var parent = elem.parentNode;
|
|
|
|
if ( parent ) {
|
|
parent.selectedIndex;
|
|
|
|
// Make sure that it also works with optgroups, see #5701
|
|
if ( parent.parentNode ) {
|
|
parent.parentNode.selectedIndex;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
});
|
|
}
|
|
|
|
// IE6/7 call enctype encoding
|
|
if ( !jQuery.support.enctype ) {
|
|
jQuery.propFix.enctype = "encoding";
|
|
}
|
|
|
|
// Radios and checkboxes getter/setter
|
|
if ( !jQuery.support.checkOn ) {
|
|
jQuery.each([ "radio", "checkbox" ], function() {
|
|
jQuery.valHooks[ this ] = {
|
|
get: function( elem ) {
|
|
// Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
|
|
return elem.getAttribute("value") === null ? "on" : elem.value;
|
|
}
|
|
};
|
|
});
|
|
}
|
|
jQuery.each([ "radio", "checkbox" ], function() {
|
|
jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
|
|
set: function( elem, value ) {
|
|
if ( jQuery.isArray( value ) ) {
|
|
return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
|
|
}
|
|
}
|
|
});
|
|
});
|