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comparison PalanthirExplorer/libs/jquery.blockUI.js @ 45:33d67e1ab173

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 05 Sep 2012 13:24:59 +0200
parents PalantirExplorer/libs/jquery.blockUI.js@3959d33612cc
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43:9be852ad33d2 45:33d67e1ab173
1 /*!
2 * jQuery blockUI plugin
3 * Version 2.39 (23-MAY-2011)
4 * @requires jQuery v1.2.3 or later
5 *
6 * Examples at: http://malsup.com/jquery/block/
7 * Copyright (c) 2007-2010 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($) {
16
17 if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
18 alert('blockUI requires jQuery v1.2.3 or later! You are using v' + $.fn.jquery);
19 return;
20 }
21
22 $.fn._fadeIn = $.fn.fadeIn;
23
24 var noOp = function() {};
25
26 // this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle
27 // retarded userAgent strings on Vista)
28 var mode = document.documentMode || 0;
29 var setExpr = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8);
30 var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent) && !mode;
31
32 // global $ methods for blocking/unblocking the entire page
33 $.blockUI = function(opts) { install(window, opts); };
34 $.unblockUI = function(opts) { remove(window, opts); };
35
36 // convenience method for quick growl-like notifications (http://www.google.com/search?q=growl)
37 $.growlUI = function(title, message, timeout, onClose) {
38 var $m = $('<div class="growlUI"></div>');
39 if (title) $m.append('<h1>'+title+'</h1>');
40 if (message) $m.append('<h2>'+message+'</h2>');
41 if (timeout == undefined) timeout = 3000;
42 $.blockUI({
43 message: $m, fadeIn: 700, fadeOut: 1000, centerY: false,
44 timeout: timeout, showOverlay: false,
45 onUnblock: onClose,
46 css: $.blockUI.defaults.growlCSS
47 });
48 };
49
50 // plugin method for blocking element content
51 $.fn.block = function(opts) {
52 return this.unblock({ fadeOut: 0 }).each(function() {
53 if ($.css(this,'position') == 'static')
54 this.style.position = 'relative';
55 if ($.browser.msie)
56 this.style.zoom = 1; // force 'hasLayout'
57 install(this, opts);
58 });
59 };
60
61 // plugin method for unblocking element content
62 $.fn.unblock = function(opts) {
63 return this.each(function() {
64 remove(this, opts);
65 });
66 };
67
68 $.blockUI.version = 2.39; // 2nd generation blocking at no extra cost!
69
70 // override these in your code to change the default behavior and style
71 $.blockUI.defaults = {
72 // message displayed when blocking (use null for no message)
73 message: '<h1>Please wait...</h1>',
74
75 title: null, // title string; only used when theme == true
76 draggable: true, // only used when theme == true (requires jquery-ui.js to be loaded)
77
78 theme: false, // set to true to use with jQuery UI themes
79
80 // styles for the message when blocking; if you wish to disable
81 // these and use an external stylesheet then do this in your code:
82 // $.blockUI.defaults.css = {};
83 css: {
84 padding: 0,
85 margin: 0,
86 width: '30%',
87 top: '40%',
88 left: '35%',
89 textAlign: 'center',
90 color: '#000',
91 border: '3px solid #aaa',
92 backgroundColor:'#fff',
93 cursor: 'wait'
94 },
95
96 // minimal style set used when themes are used
97 themedCSS: {
98 width: '30%',
99 top: '40%',
100 left: '35%'
101 },
102
103 // styles for the overlay
104 overlayCSS: {
105 backgroundColor: '#000',
106 opacity: 0.6,
107 cursor: 'wait'
108 },
109
110 // styles applied when using $.growlUI
111 growlCSS: {
112 width: '350px',
113 top: '10px',
114 left: '',
115 right: '10px',
116 border: 'none',
117 padding: '5px',
118 opacity: 0.6,
119 cursor: 'default',
120 color: '#fff',
121 backgroundColor: '#000',
122 '-webkit-border-radius': '10px',
123 '-moz-border-radius': '10px',
124 'border-radius': '10px'
125 },
126
127 // IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w
128 // (hat tip to Jorge H. N. de Vasconcelos)
129 iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank',
130
131 // force usage of iframe in non-IE browsers (handy for blocking applets)
132 forceIframe: false,
133
134 // z-index for the blocking overlay
135 baseZ: 1000,
136
137 // set these to true to have the message automatically centered
138 centerX: true, // <-- only effects element blocking (page block controlled via css above)
139 centerY: true,
140
141 // allow body element to be stetched in ie6; this makes blocking look better
142 // on "short" pages. disable if you wish to prevent changes to the body height
143 allowBodyStretch: true,
144
145 // enable if you want key and mouse events to be disabled for content that is blocked
146 bindEvents: true,
147
148 // be default blockUI will supress tab navigation from leaving blocking content
149 // (if bindEvents is true)
150 constrainTabKey: true,
151
152 // fadeIn time in millis; set to 0 to disable fadeIn on block
153 fadeIn: 200,
154
155 // fadeOut time in millis; set to 0 to disable fadeOut on unblock
156 fadeOut: 400,
157
158 // time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
159 timeout: 0,
160
161 // disable if you don't want to show the overlay
162 showOverlay: true,
163
164 // if true, focus will be placed in the first available input field when
165 // page blocking
166 focusInput: true,
167
168 // suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity)
169 applyPlatformOpacityRules: true,
170
171 // callback method invoked when fadeIn has completed and blocking message is visible
172 onBlock: null,
173
174 // callback method invoked when unblocking has completed; the callback is
175 // passed the element that has been unblocked (which is the window object for page
176 // blocks) and the options that were passed to the unblock call:
177 // onUnblock(element, options)
178 onUnblock: null,
179
180 // don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493
181 quirksmodeOffsetHack: 4,
182
183 // class name of the message block
184 blockMsgClass: 'blockMsg'
185 };
186
187 // private data and functions follow...
188
189 var pageBlock = null;
190 var pageBlockEls = [];
191
192 function install(el, opts) {
193 var full = (el == window);
194 var msg = opts && opts.message !== undefined ? opts.message : undefined;
195 opts = $.extend({}, $.blockUI.defaults, opts || {});
196 opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {});
197 var css = $.extend({}, $.blockUI.defaults.css, opts.css || {});
198 var themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {});
199 msg = msg === undefined ? opts.message : msg;
200
201 // remove the current block (if there is one)
202 if (full && pageBlock)
203 remove(window, {fadeOut:0});
204
205 // if an existing element is being used as the blocking content then we capture
206 // its current place in the DOM (and current display style) so we can restore
207 // it when we unblock
208 if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) {
209 var node = msg.jquery ? msg[0] : msg;
210 var data = {};
211 $(el).data('blockUI.history', data);
212 data.el = node;
213 data.parent = node.parentNode;
214 data.display = node.style.display;
215 data.position = node.style.position;
216 if (data.parent)
217 data.parent.removeChild(node);
218 }
219
220 $(el).data('blockUI.onUnblock', opts.onUnblock);
221 var z = opts.baseZ;
222
223 // blockUI uses 3 layers for blocking, for simplicity they are all used on every platform;
224 // layer1 is the iframe layer which is used to supress bleed through of underlying content
225 // layer2 is the overlay layer which has opacity and a wait cursor (by default)
226 // layer3 is the message content that is displayed while blocking
227
228 var lyr1 = ($.browser.msie || opts.forceIframe)
229 ? $('<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>')
230 : $('<div class="blockUI" style="display:none"></div>');
231
232 var lyr2 = opts.theme
233 ? $('<div class="blockUI blockOverlay ui-widget-overlay" style="z-index:'+ (z++) +';display:none"></div>')
234 : $('<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>');
235
236 var lyr3, s;
237 if (opts.theme && full) {
238 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:fixed">' +
239 '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>' +
240 '<div class="ui-widget-content ui-dialog-content"></div>' +
241 '</div>';
242 }
243 else if (opts.theme) {
244 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+(z+10)+';display:none;position:absolute">' +
245 '<div class="ui-widget-header ui-dialog-titlebar ui-corner-all blockTitle">'+(opts.title || '&nbsp;')+'</div>' +
246 '<div class="ui-widget-content ui-dialog-content"></div>' +
247 '</div>';
248 }
249 else if (full) {
250 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockPage" style="z-index:'+(z+10)+';display:none;position:fixed"></div>';
251 }
252 else {
253 s = '<div class="blockUI ' + opts.blockMsgClass + ' blockElement" style="z-index:'+(z+10)+';display:none;position:absolute"></div>';
254 }
255 lyr3 = $(s);
256
257 // if we have a message, style it
258 if (msg) {
259 if (opts.theme) {
260 lyr3.css(themedCSS);
261 lyr3.addClass('ui-widget-content');
262 }
263 else
264 lyr3.css(css);
265 }
266
267 // style the overlay
268 if (!opts.theme && (!opts.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform))))
269 lyr2.css(opts.overlayCSS);
270 lyr2.css('position', full ? 'fixed' : 'absolute');
271
272 // make iframe layer transparent in IE
273 if ($.browser.msie || opts.forceIframe)
274 lyr1.css('opacity',0.0);
275
276 //$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el);
277 var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el);
278 $.each(layers, function() {
279 this.appendTo($par);
280 });
281
282 if (opts.theme && opts.draggable && $.fn.draggable) {
283 lyr3.draggable({
284 handle: '.ui-dialog-titlebar',
285 cancel: 'li'
286 });
287 }
288
289 // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling)
290 var expr = setExpr && (!$.boxModel || $('object,embed', full ? null : el).length > 0);
291 if (ie6 || expr) {
292 // give body 100% height
293 if (full && opts.allowBodyStretch && $.boxModel)
294 $('html,body').css('height','100%');
295
296 // fix ie6 issue when blocked element has a border width
297 if ((ie6 || !$.boxModel) && !full) {
298 var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth');
299 var fixT = t ? '(0 - '+t+')' : 0;
300 var fixL = l ? '(0 - '+l+')' : 0;
301 }
302
303 // simulate fixed position
304 $.each([lyr1,lyr2,lyr3], function(i,o) {
305 var s = o[0].style;
306 s.position = 'absolute';
307 if (i < 2) {
308 full ? s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.boxModel?0:'+opts.quirksmodeOffsetHack+') + "px"')
309 : s.setExpression('height','this.parentNode.offsetHeight + "px"');
310 full ? s.setExpression('width','jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"')
311 : s.setExpression('width','this.parentNode.offsetWidth + "px"');
312 if (fixL) s.setExpression('left', fixL);
313 if (fixT) s.setExpression('top', fixT);
314 }
315 else if (opts.centerY) {
316 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"');
317 s.marginTop = 0;
318 }
319 else if (!opts.centerY && full) {
320 var top = (opts.css && opts.css.top) ? parseInt(opts.css.top) : 0;
321 var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"';
322 s.setExpression('top',expression);
323 }
324 });
325 }
326
327 // show the message
328 if (msg) {
329 if (opts.theme)
330 lyr3.find('.ui-widget-content').append(msg);
331 else
332 lyr3.append(msg);
333 if (msg.jquery || msg.nodeType)
334 $(msg).show();
335 }
336
337 if (($.browser.msie || opts.forceIframe) && opts.showOverlay)
338 lyr1.show(); // opacity is zero
339 if (opts.fadeIn) {
340 var cb = opts.onBlock ? opts.onBlock : noOp;
341 var cb1 = (opts.showOverlay && !msg) ? cb : noOp;
342 var cb2 = msg ? cb : noOp;
343 if (opts.showOverlay)
344 lyr2._fadeIn(opts.fadeIn, cb1);
345 if (msg)
346 lyr3._fadeIn(opts.fadeIn, cb2);
347 }
348 else {
349 if (opts.showOverlay)
350 lyr2.show();
351 if (msg)
352 lyr3.show();
353 if (opts.onBlock)
354 opts.onBlock();
355 }
356
357 // bind key and mouse events
358 bind(1, el, opts);
359
360 if (full) {
361 pageBlock = lyr3[0];
362 pageBlockEls = $(':input:enabled:visible',pageBlock);
363 if (opts.focusInput)
364 setTimeout(focus, 20);
365 }
366 else
367 center(lyr3[0], opts.centerX, opts.centerY);
368
369 if (opts.timeout) {
370 // auto-unblock
371 var to = setTimeout(function() {
372 full ? $.unblockUI(opts) : $(el).unblock(opts);
373 }, opts.timeout);
374 $(el).data('blockUI.timeout', to);
375 }
376 };
377
378 // remove the block
379 function remove(el, opts) {
380 var full = (el == window);
381 var $el = $(el);
382 var data = $el.data('blockUI.history');
383 var to = $el.data('blockUI.timeout');
384 if (to) {
385 clearTimeout(to);
386 $el.removeData('blockUI.timeout');
387 }
388 opts = $.extend({}, $.blockUI.defaults, opts || {});
389 bind(0, el, opts); // unbind events
390
391 if (opts.onUnblock === null) {
392 opts.onUnblock = $el.data('blockUI.onUnblock');
393 $el.removeData('blockUI.onUnblock');
394 }
395
396 var els;
397 if (full) // crazy selector to handle odd field errors in ie6/7
398 els = $('body').children().filter('.blockUI').add('body > .blockUI');
399 else
400 els = $('.blockUI', el);
401
402 if (full)
403 pageBlock = pageBlockEls = null;
404
405 if (opts.fadeOut) {
406 els.fadeOut(opts.fadeOut);
407 setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut);
408 }
409 else
410 reset(els, data, opts, el);
411 };
412
413 // move blocking element back into the DOM where it started
414 function reset(els,data,opts,el) {
415 els.each(function(i,o) {
416 // remove via DOM calls so we don't lose event handlers
417 if (this.parentNode)
418 this.parentNode.removeChild(this);
419 });
420
421 if (data && data.el) {
422 data.el.style.display = data.display;
423 data.el.style.position = data.position;
424 if (data.parent)
425 data.parent.appendChild(data.el);
426 $(el).removeData('blockUI.history');
427 }
428
429 if (typeof opts.onUnblock == 'function')
430 opts.onUnblock(el,opts);
431 };
432
433 // bind/unbind the handler
434 function bind(b, el, opts) {
435 var full = el == window, $el = $(el);
436
437 // don't bother unbinding if there is nothing to unbind
438 if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked')))
439 return;
440 if (!full)
441 $el.data('blockUI.isBlocked', b);
442
443 // don't bind events when overlay is not in use or if bindEvents is false
444 if (!opts.bindEvents || (b && !opts.showOverlay))
445 return;
446
447 // bind anchors and inputs for mouse and key events
448 var events = 'mousedown mouseup keydown keypress';
449 b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler);
450
451 // former impl...
452 // var $e = $('a,:input');
453 // b ? $e.bind(events, opts, handler) : $e.unbind(events, handler);
454 };
455
456 // event handler to suppress keyboard/mouse events when blocking
457 function handler(e) {
458 // allow tab navigation (conditionally)
459 if (e.keyCode && e.keyCode == 9) {
460 if (pageBlock && e.data.constrainTabKey) {
461 var els = pageBlockEls;
462 var fwd = !e.shiftKey && e.target === els[els.length-1];
463 var back = e.shiftKey && e.target === els[0];
464 if (fwd || back) {
465 setTimeout(function(){focus(back)},10);
466 return false;
467 }
468 }
469 }
470 var opts = e.data;
471 // allow events within the message content
472 if ($(e.target).parents('div.' + opts.blockMsgClass).length > 0)
473 return true;
474
475 // allow events for content that is not being blocked
476 return $(e.target).parents().children().filter('div.blockUI').length == 0;
477 };
478
479 function focus(back) {
480 if (!pageBlockEls)
481 return;
482 var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0];
483 if (e)
484 e.focus();
485 };
486
487 function center(el, x, y) {
488 var p = el.parentNode, s = el.style;
489 var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth');
490 var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth');
491 if (x) s.left = l > 0 ? (l+'px') : '0';
492 if (y) s.top = t > 0 ? (t+'px') : '0';
493 };
494
495 function sz(el, p) {
496 return parseInt($.css(el,p))||0;
497 };
498
499 })(jQuery);