jquery-ui/ui/jquery.ui.core.js
2010-07-22 19:26:37 -04:00

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/*!
* jQuery UI @VERSION
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI
*/
(function( $, undefined ) {
// prevent duplicate loading
// this is only a problem because we proxy existing functions
// and we don't want to double proxy them
$.ui = $.ui || {};
if ( $.ui.version ) {
return;
}
//Helper functions and ui object
$.extend( $.ui, {
version: "@VERSION",
// $.ui.plugin is deprecated. Use the proxy pattern instead.
plugin: {
add: function( module, option, set ) {
var proto = $.ui[ module ].prototype;
for ( var i in set ) {
proto.plugins[ i ] = proto.plugins[ i ] || [];
proto.plugins[ i ].push( [ option, set[ i ] ] );
}
},
call: function( instance, name, args ) {
var set = instance.plugins[ name ];
if ( !set || !instance.element[ 0 ].parentNode ) {
return;
}
for ( var i = 0; i < set.length; i++ ) {
if ( instance.options[ set[ i ][ 0 ] ] ) {
set[ i ][ 1 ].apply( instance.element, args );
}
}
}
},
contains: function( a, b ) {
return document.compareDocumentPosition ?
a.compareDocumentPosition( b ) & 16 :
a !== b && a.contains( b );
},
hasScroll: function( el, a ) {
//If overflow is hidden, the element might have extra content, but the user wants to hide it
if ( $( el ).css( "overflow" ) === "hidden") {
return false;
}
var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop",
has = false;
if ( el[ scroll ] > 0 ) {
return true;
}
// TODO: determine which cases actually cause this to happen
// if the element doesn't have the scroll set, see if it's possible to
// set the scroll
el[ scroll ] = 1;
has = ( el[ scroll ] > 0 );
el[ scroll ] = 0;
return has;
},
isOverAxis: function( x, reference, size ) {
//Determines when x coordinate is over "b" element axis
return ( x > reference ) && ( x < ( reference + size ) );
},
isOver: function( y, x, top, left, height, width ) {
//Determines when x, y coordinates is over "b" element
return $.ui.isOverAxis( y, top, height ) && $.ui.isOverAxis( x, left, width );
},
keyCode: {
ALT: 18,
BACKSPACE: 8,
CAPS_LOCK: 20,
COMMA: 188,
COMMAND: 91,
COMMAND_LEFT: 91, // COMMAND
COMMAND_RIGHT: 93,
CONTROL: 17,
DELETE: 46,
DOWN: 40,
END: 35,
ENTER: 13,
ESCAPE: 27,
HOME: 36,
INSERT: 45,
LEFT: 37,
MENU: 93, // COMMAND_RIGHT
NUMPAD_ADD: 107,
NUMPAD_DECIMAL: 110,
NUMPAD_DIVIDE: 111,
NUMPAD_ENTER: 108,
NUMPAD_MULTIPLY: 106,
NUMPAD_SUBTRACT: 109,
PAGE_DOWN: 34,
PAGE_UP: 33,
PERIOD: 190,
RIGHT: 39,
SHIFT: 16,
SPACE: 32,
TAB: 9,
UP: 38,
WINDOWS: 91 // COMMAND
}
});
//jQuery plugins
$.fn.extend({
_focus: $.fn.focus,
focus: function( delay, fn ) {
return typeof delay === "number" ?
this.each(function() {
var elem = this;
setTimeout(function() {
$( elem ).focus();
if ( fn ) {
fn.call( elem );
}
}, delay );
}) :
this._focus.apply( this, arguments );
},
enableSelection: function() {
return this
.attr( "unselectable", "off" )
.css( "MozUserSelect", "" );
},
disableSelection: function() {
return this
.attr( "unselectable", "on" )
.css( "MozUserSelect", "none" );
},
scrollParent: function() {
var scrollParent;
if (($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
scrollParent = this.parents().filter(function() {
return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
}).eq(0);
} else {
scrollParent = this.parents().filter(function() {
return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
}).eq(0);
}
return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
},
zIndex: function( zIndex ) {
if ( zIndex !== undefined ) {
return this.css( "zIndex", zIndex );
}
if ( this.length ) {
var elem = $( this[ 0 ] ), position, value;
while ( elem.length && elem[ 0 ] !== document ) {
// Ignore z-index if position is set to a value where z-index is ignored by the browser
// This makes behavior of this function consistent across browsers
// WebKit always returns auto if the element is positioned
position = elem.css( "position" );
if ( position === "absolute" || position === "relative" || position === "fixed" ) {
// IE returns 0 when zIndex is not specified
// other browsers return a string
// we ignore the case of nested elements with an explicit value of 0
// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
value = parseInt( elem.css( "zIndex" ) );
if ( !isNaN( value ) && value != 0 ) {
return value;
}
}
elem = elem.parent();
}
}
return 0;
}
});
$.each( [ "Width", "Height" ], function( i, name ) {
var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
type = name.toLowerCase(),
orig = {
innerWidth: $.fn.innerWidth,
innerHeight: $.fn.innerHeight,
outerWidth: $.fn.outerWidth,
outerHeight: $.fn.outerHeight
};
function reduce( elem, size, border, margin ) {
$.each( side, function() {
size -= parseFloat( $.curCSS( elem, "padding" + this, true) ) || 0;
if ( border ) {
size -= parseFloat( $.curCSS( elem, "border" + this + "Width", true) ) || 0;
}
if ( margin ) {
size -= parseFloat( $.curCSS( elem, "margin" + this, true) ) || 0;
}
});
return size;
}
$.fn[ "inner" + name ] = function( size ) {
if ( size === undefined ) {
return orig[ "inner" + name ].call( this );
}
return this.each(function() {
$.style( this, type, reduce( this, size ) + "px" );
});
};
$.fn[ "outer" + name] = function( size, margin ) {
if ( typeof size !== "number" ) {
return orig[ "outer" + name ].call( this, size );
}
return this.each(function() {
$.style( this, type, reduce( this, size, true, margin ) + "px" );
});
};
});
//Additional selectors
function visible( element ) {
return !$( element ).parents().andSelf().filter(function() {
return $.curCSS( this, "visibility" ) === "hidden" ||
$.expr.filters.hidden( this );
}).length;
}
$.extend( $.expr[ ":" ], {
data: function( elem, i, match ) {
return !!$.data( elem, match[ 3 ] );
},
focusable: function( element ) {
var nodeName = element.nodeName.toLowerCase(),
tabIndex = $.attr( element, "tabindex" );
if ( "area" === nodeName ) {
var map = element.parentNode,
mapName = map.name,
img;
if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
return false;
}
img = $( "img[usemap=#" + mapName + "]" )[0];
return !!img && visible( img );
}
return ( /input|select|textarea|button|object/.test( nodeName )
? !element.disabled
: "a" == nodeName
? element.href || !isNaN( tabIndex )
: !isNaN( tabIndex ))
// the element and all of its ancestors must be visible
&& visible( element );
},
tabbable: function( element ) {
var tabIndex = $.attr( element, "tabindex" );
return ( isNaN( tabIndex ) || tabIndex >= 0 ) && $( element ).is( ":focusable" );
}
});
})( jQuery );