jquery-ui/ui/jquery.ui.core.js

216 lines
5.6 KiB
JavaScript

/*!
* 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() {
$(elem).focus();
(fn && fn.call(elem));
}, delay);
})
: this._focus.apply(this, arguments);
},
enableSelection: function() {
return this
.attr('unselectable', 'off')
.css('MozUserSelect', '');
},
disableSelection: function() {
return this
.attr('unselectable', 'on')
.css('MozUserSelect', 'none');
},
scrollParent: function() {
var scrollParent;
if(($.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;
}
});
//Additional selectors
$.extend($.expr[':'], {
data: function(elem, i, match) {
return !!$.data(elem, match[3]);
},
focusable: function(element) {
var nodeName = element.nodeName.toLowerCase(),
tabIndex = $.attr(element, 'tabindex');
return (/input|select|textarea|button|object/.test(nodeName)
? !element.disabled
: 'a' == nodeName || 'area' == nodeName
? element.href || !isNaN(tabIndex)
: !isNaN(tabIndex))
// the element and all of its ancestors must be visible
// the browser may report that the area is hidden
&& !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
},
tabbable: function(element) {
var tabIndex = $.attr(element, 'tabindex');
return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
}
});
})(jQuery);