https://fedinmuseum.ru/design/widget/lib/jquery.ui.core.js

1/*!
2 * jQuery UI 1.8
3 *
4 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT (MIT-LICENSE.txt)
6 * and GPL (GPL-LICENSE.txt) licenses.
7 *
8 * http://docs.jquery.com/UI
9 */
10;jQuery.ui || (function($) {
11
12//Helper functions and ui object
13$.ui = {
14	version: "1.8",
15
16	// $.ui.plugin is deprecated.  Use the proxy pattern instead.
17	plugin: {
18		add: function(module, option, set) {
19			var proto = $.ui[module].prototype;
20			for(var i in set) {
21				proto.plugins[i] = proto.plugins[i] || [];
22				proto.plugins[i].push([option, set[i]]);
23			}
24		},
25		call: function(instance, name, args) {
26			var set = instance.plugins[name];
27			if(!set || !instance.element[0].parentNode) { return; }
28
29			for (var i = 0; i < set.length; i++) {
30				if (instance.options[set[i][0]]) {
31					set[i][1].apply(instance.element, args);
32				}
33			}
34		}
35	},
36
37	contains: function(a, b) {
38		return document.compareDocumentPosition
39			? a.compareDocumentPosition(b) & 16
40			: a !== b && a.contains(b);
41	},
42
43	hasScroll: function(el, a) {
44
45		//If overflow is hidden, the element might have extra content, but the user wants to hide it
46		if ($(el).css('overflow') == 'hidden') { return false; }
47
48		var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
49			has = false;
50
51		if (el[scroll] > 0) { return true; }
52
53		// TODO: determine which cases actually cause this to happen
54		// if the element doesn't have the scroll set, see if it's possible to
55		// set the scroll
56		el[scroll] = 1;
57		has = (el[scroll] > 0);
58		el[scroll] = 0;
59		return has;
60	},
61
62	isOverAxis: function(x, reference, size) {
63		//Determines when x coordinate is over "b" element axis
64		return (x > reference) && (x < (reference + size));
65	},
66
67	isOver: function(y, x, top, left, height, width) {
68		//Determines when x, y coordinates is over "b" element
69		return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
70	},
71
72	keyCode: {
73		BACKSPACE: 8,
74		CAPS_LOCK: 20,
75		COMMA: 188,
76		CONTROL: 17,
77		DELETE: 46,
78		DOWN: 40,
79		END: 35,
80		ENTER: 13,
81		ESCAPE: 27,
82		HOME: 36,
83		INSERT: 45,
84		LEFT: 37,
85		NUMPAD_ADD: 107,
86		NUMPAD_DECIMAL: 110,
87		NUMPAD_DIVIDE: 111,
88		NUMPAD_ENTER: 108,
89		NUMPAD_MULTIPLY: 106,
90		NUMPAD_SUBTRACT: 109,
91		PAGE_DOWN: 34,
92		PAGE_UP: 33,
93		PERIOD: 190,
94		RIGHT: 39,
95		SHIFT: 16,
96		SPACE: 32,
97		TAB: 9,
98		UP: 38
99	}
100};
101
102//jQuery plugins
103$.fn.extend({
104	_focus: $.fn.focus,
105	focus: function(delay, fn) {
106		return typeof delay === 'number'
107			? this.each(function() {
108				var elem = this;
109				setTimeout(function() {
110					$(elem).focus();
111					(fn && fn.call(elem));
112				}, delay);
113			})
114			: this._focus.apply(this, arguments);
115	},
116	
117	enableSelection: function() {
118		return this
119			.attr('unselectable', 'off')
120			.css('MozUserSelect', '')
121			.unbind('selectstart.ui');
122	},
123
124	disableSelection: function() {
125		return this
126			.attr('unselectable', 'on')
127			.css('MozUserSelect', 'none')
128			.bind('selectstart.ui', function() { return false; });
129	},
130
131	scrollParent: function() {
132		var scrollParent;
133		if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
134			scrollParent = this.parents().filter(function() {
135				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));
136			}).eq(0);
137		} else {
138			scrollParent = this.parents().filter(function() {
139				return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
140			}).eq(0);
141		}
142
143		return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
144	},
145
146	zIndex: function(zIndex) {
147		if (zIndex !== undefined) {
148			return this.css('zIndex', zIndex);
149		}
150		
151		if (this.length) {
152			var elem = $(this[0]), position, value;
153			while (elem.length && elem[0] !== document) {
154				// Ignore z-index if position is set to a value where z-index is ignored by the browser
155				// This makes behavior of this function consistent across browsers
156				// WebKit always returns auto if the element is positioned
157				position = elem.css('position');
158				if (position == 'absolute' || position == 'relative' || position == 'fixed')
159				{
160					// IE returns 0 when zIndex is not specified
161					// other browsers return a string
162					// we ignore the case of nested elements with an explicit value of 0
163					// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
164					value = parseInt(elem.css('zIndex'));
165					if (!isNaN(value) && value != 0) {
166						return value;
167					}
168				}
169				elem = elem.parent();
170			}
171		}
172
173		return 0;
174	}
175});
176
177
178//Additional selectors
179$.extend($.expr[':'], {
180	data: function(elem, i, match) {
181		return !!$.data(elem, match[3]);
182	},
183
184	focusable: function(element) {
185		var nodeName = element.nodeName.toLowerCase(),
186			tabIndex = $.attr(element, 'tabindex');
187		return (/input|select|textarea|button|object/.test(nodeName)
188			? !element.disabled
189			: 'a' == nodeName || 'area' == nodeName
190				? element.href || !isNaN(tabIndex)
191				: !isNaN(tabIndex))
192			// the element and all of its ancestors must be visible
193			// the browser may report that the area is hidden
194			&& !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
195	},
196
197	tabbable: function(element) {
198		var tabIndex = $.attr(element, 'tabindex');
199		return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
200	}
201});
202
203})(jQuery);