source: main/trunk/greenstone3/web/interfaces/default_old/js/jquery.blockUI.js_2.50@ 29861

Last change on this file since 29861 was 29861, checked in by Georgiy Litvinov, 9 years ago

renamed interfaces
  • Property svn:executable set to *
File size: 17.6 KB
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1/*!
2 * jQuery blockUI plugin
3 * Version 2.50 (04-OCT-2012)
4 * @requires jQuery v1.3 or later
5 *
6 * Examples at: http://malsup.com/jquery/block/
7 * Copyright (c) 2007-2012 M. Alsup
8 * Dual licensed under the MIT and GPL licenses:
9 * http://www.opensource.org/licenses/mit-license.php
10 * http://www.gnu.org/licenses/gpl.html
11 *
12 * Thanks to Amir-Hossein Sobhi for some excellent contributions!
13 */
14
15;(function() {
16"use strict";
17
18 function setup($) {
19 if (/^1\.(0|1|2)/.test($.fn.jquery)) {
20 /*global alert:true */
21 alert('blockUI requires jQuery v1.3 or later! You are using v' + $.fn.jquery);
22 return;
23 }
24
25 $.fn._fadeIn = $.fn.fadeIn;
26
27 var noOp = $.noop || function() {};
28
29 // this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
30 // retarded userAgent strings on Vista)
31 var msie = /MSIE/.test(navigator.userAgent);
32 var ie6 = /MSIE 6.0/.test(navigator.userAgent);
33 var mode = document.documentMode || 0;
34 // var setExpr = msie && (($.browser.version < 8 && !mode) || mode < 8);
35 var setExpr = $.isFunction( document.createElement('div').style.setExpression );
36
37 // global $ methods for blocking/unblocking the entire page
38 $.blockUI = function(opts) { install(window, opts); };
39 $.unblockUI = function(opts) { remove(window, opts); };
40
41 // convenience method for quick growl-like notifications (http://www.google.com/search?q=growl)
42 $.growlUI = function(title, message, timeout, onClose) {
43 var $m = $('<div class="growlUI"></div>');
44 if (title) $m.append('<h1>'+title+'</h1>');
45 if (message) $m.append('<h2>'+message+'</h2>');
46 if (timeout === undefined) timeout = 3000;
47 $.blockUI({
48 message: $m, fadeIn: 700, fadeOut: 1000, centerY: false,
49 timeout: timeout, showOverlay: false,
50 onUnblock: onClose,
51 css: $.blockUI.defaults.growlCSS
52 });
53 };
54
55 // plugin method for blocking element content
56 $.fn.block = function(opts) {
57 var fullOpts = $.extend({}, $.blockUI.defaults, opts || {});
58 this.each(function() {
59 var $el = $(this);
60 if (fullOpts.ignoreIfBlocked && $el.data('blockUI.isBlocked'))
61 return;
62 $el.unblock({ fadeOut: 0 });
63 });
64
65 return this.each(function() {
66 if ($.css(this,'position') == 'static')
67 this.style.position = 'relative';
68 this.style.zoom = 1; // force 'hasLayout' in ie
69 install(this, opts);
70 });
71 };
72
73 // plugin method for unblocking element content
74 $.fn.unblock = function(opts) {
75 return this.each(function() {
76 remove(this, opts);
77 });
78 };
79
80 $.blockUI.version = 2.50; // 2nd generation blocking at no extra cost!
81
82 // override these in your code to change the default behavior and style
83 $.blockUI.defaults = {
84 // message displayed when blocking (use null for no message)
85 message: '<h1>Please wait...</h1>',
86
87 title: null, // title string; only used when theme == true
88 draggable: true, // only used when theme == true (requires jquery-ui.js to be loaded)
89
90 theme: false, // set to true to use with jQuery UI themes
91
92 // styles for the message when blocking; if you wish to disable
93 // these and use an external stylesheet then do this in your code:
94 // $.blockUI.defaults.css = {};
95 css: {
96 padding: 0,
97 margin: 0,
98 width: '30%',
99 top: '40%',
100 left: '35%',
101 textAlign: 'center',
102 color: '#000',
103 border: '3px solid #aaa',
104 backgroundColor:'#fff',
105 cursor: 'wait'
106 },
107
108 // minimal style set used when themes are used
109 themedCSS: {
110 width: '30%',
111 top: '40%',
112 left: '35%'
113 },
114
115 // styles for the overlay
116 overlayCSS: {
117 backgroundColor: '#000',
118 opacity: 0.6,
119 cursor: 'wait'
120 },
121
122 // styles applied when using $.growlUI
123 growlCSS: {
124 width: '350px',
125 top: '10px',
126 left: '',
127 right: '10px',
128 border: 'none',
129 padding: '5px',
130 opacity: 0.6,
131 cursor: 'default',
132 color: '#fff',
133 backgroundColor: '#000',
134 '-webkit-border-radius':'10px',
135 '-moz-border-radius': '10px',
136 'border-radius': '10px'
137 },
138
139 // IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
140 // (hat tip to Jorge H. N. de Vasconcelos)
141 /*jshint scripturl:true */
142 iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
143
144 // force usage of iframe in non-IE browsers (handy for blocking applets)
145 forceIframe: false,
146
147 // z-index for the blocking overlay
148 baseZ: 1000,
149
150 // set these to true to have the message automatically centered
151 centerX: true, // <-- only effects element blocking (page block controlled via css above)
152 centerY: true,
153
154 // allow body element to be stetched in ie6; this makes blocking look better
155 // on "short" pages. disable if you wish to prevent changes to the body height
156 allowBodyStretch: true,
157
158 // enable if you want key and mouse events to be disabled for content that is blocked
159 bindEvents: true,
160
161 // be default blockUI will supress tab navigation from leaving blocking content
162 // (if bindEvents is true)
163 constrainTabKey: true,
164
165 // fadeIn time in millis; set to 0 to disable fadeIn on block
166 fadeIn: 200,
167
168 // fadeOut time in millis; set to 0 to disable fadeOut on unblock
169 fadeOut: 400,
170
171 // time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
172 timeout: 0,
173
174 // disable if you don't want to show the overlay
175 showOverlay: true,
176
177 // if true, focus will be placed in the first available input field when
178 // page blocking
179 focusInput: true,
180
181 // suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
182 // no longer needed in 2012
183 // applyPlatformOpacityRules: true,
184
185 // callback method invoked when fadeIn has completed and blocking message is visible
186 onBlock: null,
187
188 // callback method invoked when unblocking has completed; the callback is
189 // passed the element that has been unblocked (which is the window object for page
190 // blocks) and the options that were passed to the unblock call:
191 // onUnblock(element, options)
192 onUnblock: null,
193
194 // don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
195 quirksmodeOffsetHack: 4,
196
197 // class name of the message block
198 blockMsgClass: 'blockMsg',
199
200 // if it is already blocked, then ignore it (don't unblock and reblock)
201 ignoreIfBlocked: false
202 };
203
204 // private data and functions follow...
205
206 var pageBlock = null;
207 var pageBlockEls = [];
208
209 function install(el, opts) {
210 var css, themedCSS;
211 var full = (el == window);
212 var msg = (opts && opts.message !== undefined ? opts.message : undefined);
213 opts = $.extend({}, $.blockUI.defaults, opts || {});
214
215 if (opts.ignoreIfBlocked && $(el).data('blockUI.isBlocked'))
216 return;
217
218 opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
219 css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
220 themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
221 msg = msg === undefined ? opts.message : msg;
222
223 // remove the current block (if there is one)
224 if (full && pageBlock)
225 remove(window, {fadeOut:0});
226
227 // if an existing element is being used as the blocking content then we capture
228 // its current place in the DOM (and current display style) so we can restore
229 // it when we unblock
230 if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
231 var node = msg.jquery ? msg[0] : msg;
232 var data = {};
233 $(el).data('blockUI.history', data);
234 data.el = node;
235 data.parent = node.parentNode;
236 data.display = node.style.display;
237 data.position = node.style.position;
238 if (data.parent)
239 data.parent.removeChild(node);
240 }
241
242 $(el).data('blockUI.onUnblock', opts.onUnblock);
243 var z = opts.baseZ;
244
245 // blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
246 // layer1 is the iframe layer which is used to supress bleed through of underlying content
247 // layer2 is the overlay layer which has opacity and a wait cursor (by default)
248 // layer3 is the message content that is displayed while blocking
249 var lyr1, lyr2, lyr3, s;
250 if (msie || opts.forceIframe)
251 lyr1 = $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>');
252 else
253 lyr1 = $('<div class="blockUI" style="display:none"></div>');
254
255 if (opts.theme)
256 lyr2 = $('<div class="blockUI blockOverlay ui-widget-overlay" style="z-index:'+ (z++) +';display:none"></div>');
257 else
258 lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
259
260 if (opts.theme && full) {
261 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:fixed">';
262 if ( opts.title ) {
263 s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
264 }
265 s += '<div class="ui-widget-content ui-dialog-content"></div>';
266 s += '</div>';
267 }
268 else if (opts.theme) {
269 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:absolute">';
270 if ( opts.title ) {
271 s += '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>';
272 }
273 s += '<div class="ui-widget-content ui-dialog-content"></div>';
274 s += '</div>';
275 }
276 else if (full) {
277 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage" style="z-index:'+(z+10)+';display:none;position:fixed"></div>';
278 }
279 else {
280 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement" style="z-index:'+(z+10)+';display:none;position:absolute"></div>';
281 }
282 lyr3 = $(s);
283
284 // if we have a message, style it
285 if (msg) {
286 if (opts.theme) {
287 lyr3.css(themedCSS);
288 lyr3.addClass('ui-widget-content');
289 }
290 else
291 lyr3.css(css);
292 }
293
294 // style the overlay
295 if (!opts.theme /*&& (!opts.applyPlatformOpacityRules)*/)
296 lyr2.css(opts.overlayCSS);
297 lyr2.css('position', full ? 'fixed' : 'absolute');
298
299 // make iframe layer transparent in IE
300 if (msie || opts.forceIframe)
301 lyr1.css('opacity',0.0);
302
303 //$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
304 var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
305 $.each(layers, function() {
306 this.appendTo($par);
307 });
308
309 if (opts.theme && opts.draggable && $.fn.draggable) {
310 lyr3.draggable({
311 handle: '.ui-dialog-titlebar',
312 cancel: 'li'
313 });
314 }
315
316 // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
317 var expr = setExpr && (!$.support.boxModel || $('object,embed', full ? null : el).length > 0);
318 if (ie6 || expr) {
319 // give body 100% height
320 if (full && opts.allowBodyStretch && $.support.boxModel)
321 $('html,body').css('height','100%');
322
323 // fix ie6 issue when blocked element has a border width
324 if ((ie6 || !$.support.boxModel) && !full) {
325 var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
326 var fixT = t ? '(0 - '+t+')' : 0;
327 var fixL = l ? '(0 - '+l+')' : 0;
328 }
329
330 // simulate fixed position
331 $.each(layers, function(i,o) {
332 var s = o[0].style;
333 s.position = 'absolute';
334 if (i < 2) {
335 if (full)
336 s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.support.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"');
337 else
338 s.setExpression('height','this.parentNode.offsetHeight + "px"');
339 if (full)
340 s.setExpression('width','jQuery.support.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"');
341 else
342 s.setExpression('width','this.parentNode.offsetWidth + "px"');
343 if (fixL) s.setExpression('left', fixL);
344 if (fixT) s.setExpression('top', fixT);
345 }
346 else if (opts.centerY) {
347 if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
348 s.marginTop = 0;
349 }
350 else if (!opts.centerY && full) {
351 var top = (opts.css && opts.css.top) ? parseInt(opts.css.top, 10) : 0;
352 var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
353 s.setExpression('top',expression);
354 }
355 });
356 }
357
358 // show the message
359 if (msg) {
360 if (opts.theme)
361 lyr3.find('.ui-widget-content').append(msg);
362 else
363 lyr3.append(msg);
364 if (msg.jquery || msg.nodeType)
365 $(msg).show();
366 }
367
368 if ((msie || opts.forceIframe) && opts.showOverlay)
369 lyr1.show(); // opacity is zero
370 if (opts.fadeIn) {
371 var cb = opts.onBlock ? opts.onBlock : noOp;
372 var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
373 var cb2 = msg ? cb : noOp;
374 if (opts.showOverlay)
375 lyr2._fadeIn(opts.fadeIn, cb1);
376 if (msg)
377 lyr3._fadeIn(opts.fadeIn, cb2);
378 }
379 else {
380 if (opts.showOverlay)
381 lyr2.show();
382 if (msg)
383 lyr3.show();
384 if (opts.onBlock)
385 opts.onBlock();
386 }
387
388 // bind key and mouse events
389 bind(1, el, opts);
390
391 if (full) {
392 pageBlock = lyr3[0];
393 pageBlockEls = $(':input:enabled:visible',pageBlock);
394 if (opts.focusInput)
395 setTimeout(focus, 20);
396 }
397 else
398 center(lyr3[0], opts.centerX, opts.centerY);
399
400 if (opts.timeout) {
401 // auto-unblock
402 var to = setTimeout(function() {
403 if (full)
404 $.unblockUI(opts);
405 else
406 $(el).unblock(opts);
407 }, opts.timeout);
408 $(el).data('blockUI.timeout', to);
409 }
410 }
411
412 // remove the block
413 function remove(el, opts) {
414 var full = (el == window);
415 var $el = $(el);
416 var data = $el.data('blockUI.history');
417 var to = $el.data('blockUI.timeout');
418 if (to) {
419 clearTimeout(to);
420 $el.removeData('blockUI.timeout');
421 }
422 opts = $.extend({}, $.blockUI.defaults, opts || {});
423 bind(0, el, opts); // unbind events
424
425 if (opts.onUnblock === null) {
426 opts.onUnblock = $el.data('blockUI.onUnblock');
427 $el.removeData('blockUI.onUnblock');
428 }
429
430 var els;
431 if (full) // crazy selector to handle odd field errors in ie6/7
432 els = $('body').children().filter('.blockUI').add('body > .blockUI');
433 else
434 els = $el.find('>.blockUI');
435
436 if (full)
437 pageBlock = pageBlockEls = null;
438
439 if (opts.fadeOut) {
440 els.fadeOut(opts.fadeOut);
441 setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
442 }
443 else
444 reset(els, data, opts, el);
445 }
446
447 // move blocking element back into the DOM where it started
448 function reset(els,data,opts,el) {
449 els.each(function(i,o) {
450 // remove via DOM calls so we don't lose event handlers
451 if (this.parentNode)
452 this.parentNode.removeChild(this);
453 });
454
455 if (data && data.el) {
456 data.el.style.display = data.display;
457 data.el.style.position = data.position;
458 if (data.parent)
459 data.parent.appendChild(data.el);
460 $(el).removeData('blockUI.history');
461 }
462
463 if (typeof opts.onUnblock == 'function')
464 opts.onUnblock(el,opts);
465
466 // fix issue in Safari 6 where block artifacts remain until reflow
467 var body = $(document.body), w = body.width(), cssW = body[0].style.width;
468 body.width(w-1).width(w);
469 body[0].style.width = cssW;
470 }
471
472 // bind/unbind the handler
473 function bind(b, el, opts) {
474 var full = el == window, $el = $(el);
475
476 // don't bother unbinding if there is nothing to unbind
477 if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
478 return;
479
480 $el.data('blockUI.isBlocked', b);
481
482 // don't bind events when overlay is not in use or if bindEvents is false
483 if (!opts.bindEvents || (b && !opts.showOverlay))
484 return;
485
486 // bind anchors and inputs for mouse and key events
487 var events = 'mousedown mouseup keydown keypress touchstart touchend touchmove';
488 if (b)
489 $(document).bind(events, opts, handler);
490 else
491 $(document).unbind(events, handler);
492
493 // former impl...
494 // var $e = $('a,:input');
495 // b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
496 }
497
498 // event handler to suppress keyboard/mouse events when blocking
499 function handler(e) {
500 // allow tab navigation (conditionally)
501 if (e.keyCode && e.keyCode == 9) {
502 if (pageBlock && e.data.constrainTabKey) {
503 var els = pageBlockEls;
504 var fwd = !e.shiftKey && e.target === els[els.length-1];
505 var back = e.shiftKey && e.target === els[0];
506 if (fwd || back) {
507 setTimeout(function(){focus(back);},10);
508 return false;
509 }
510 }
511 }
512 var opts = e.data;
513 // allow events within the message content
514 if ($(e.target).parents('div.' + opts.blockMsgClass).length > 0)
515 return true;
516
517 // allow events for content that is not being blocked
518 return $(e.target).parents().children().filter('div.blockUI').length === 0;
519 }
520
521 function focus(back) {
522 if (!pageBlockEls)
523 return;
524 var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
525 if (e)
526 e.focus();
527 }
528
529 function center(el, x, y) {
530 var p = el.parentNode, s = el.style;
531 var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
532 var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
533 if (x) s.left = l > 0 ? (l+'px') : '0';
534 if (y) s.top = t > 0 ? (t+'px') : '0';
535 }
536
537 function sz(el, p) {
538 return parseInt($.css(el,p),10)||0;
539 }
540
541 }
542
543
544 /*global define:true */
545 if (typeof define === 'function' && define.amd && define.amd.jQuery) {
546 define(['jquery'], setup);
547 } else {
548 setup(jQuery);
549 }
550
551})();
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