thickbox.js

js skylandgardening.com collected 2026-09-27 01:45:23 UTC 10,955 bytes, 341 lines download raw bytes

1/*
2 * Thickbox 2.1 - jQuery plugin for displaying content in a box above the page
3 * 
4 * Copyright (c) 2006, 2007 Cody Lindley (http://www.codylindley.com)
5 *
6 * Licensed under the MIT License:
7 *   http://www.opensource.org/licenses/mit-license.php
8 */
9
10// on page load call TB_init
11$(document).ready(TB_init);
12
13// add thickbox to href elements that have a class of .thickbox
14function TB_init(){
15	$("a.thickbox").click(function(event){
16		// stop default behaviour
17		event.preventDefault();
18		// remove click border
19		this.blur();
20	
21		// get caption: either title or name attribute
22		var caption = this.title || this.name || "";
23		
24		// get rel attribute for image groups
25		var group = this.rel || false;
26		
27		// display the box for the elements href
28		TB_show(caption, this.href, group);
29	});
30}
31
32// called when the user clicks on a thickbox link
33function TB_show(caption, url, rel) {
34
35	// create iframe, overlay and box if non-existent
36	if ( !$("#TB_HideSelect").length ) {
37		$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
38		$("#TB_overlay").click(TB_remove);
39	}
40	// TODO replace or check if event is already assigned
41	$(window).scroll(TB_position);
42	
43	// TODO replace
44	TB_overlaySize();
45	
46	// TODO create loader only once, hide and show on demand
47	$("body").append("<div id='TB_load'><img src='"+fileThickboxLoadingImage+"' /></div>");
48	TB_load_position();
49	
50	// check if a query string is involved
51	var baseURL = url.match(/(.+)?/)[1] || url;
52
53	// regex to check if a href refers to an image
54	var imageURL = /\.(jpe?g|png|gif|bmp)/gi;
55
56	// check for images
57	if ( baseURL.match(imageURL) ) {
58		var dummy = { caption: "", url: "", html: "" };
59		
60		var prev = dummy,
61			next = dummy,
62			imageCount = "";
63			
64		// if an image group is given
65		if ( rel ) {
66			function getInfo(image, id, label) {
67				return {

68					caption: image.title,
69					url: image.href,
70					html: "<span id='TB_" + id + "'>&nbsp;&nbsp;<a href='#'>" + label + "</a></span>"
71				}
72			}
73		
74			// find the anchors that point to the group
75			var imageGroup = $("a[@rel="+rel+"]").get();
76			var foundSelf = false;
77			
78			// loop through the anchors, looking for ourself, saving information about previous and next image
79			for (var i = 0; i < imageGroup.length; i++) {
80				var image = imageGroup[i];
81				var urlTypeTemp = image.href.match(imageURL);
82				
83				// look for ourself
84				if ( image.href == url ) {
85					foundSelf = true;
86					imageCount = "Image " + (i + 1) + " of "+ (imageGroup.length);
87				} else {
88					// when we found ourself, the current is the next image
89					if ( foundSelf ) {
90						next = getInfo(image, "next", "Next &gt;");
91						// stop searching
92						break;
93					} else {
94						// didn't find ourself yet, so this may be the one before ourself
95						prev = getInfo(image, "prev", "&lt; Prev");
96					}
97				}
98			}
99		}
100		
101		imgPreloader = new Image();
102		imgPreloader.onload = function() {
103			imgPreloader.onload = null;
104
105			// Resizing large images
106			var pagesize = TB_getPageSize();
107			var x = pagesize[0] - 150;
108			var y = pagesize[1] - 150;
109			var imageWidth = imgPreloader.width;
110			var imageHeight = imgPreloader.height;
111			if (imageWidth > x) {
112				imageHeight = imageHeight * (x / imageWidth); 
113				imageWidth = x; 
114				if (imageHeight > y) { 
115					imageWidth = imageWidth * (y / imageHeight); 
116					imageHeight = y; 
117				}
118			} else if (imageHeight > y) { 
119				imageWidth = imageWidth * (y / imageHeight); 
120				imageHeight = y; 
121				if (imageWidth > x) { 
122					imageHeight = imageHeight * (x / imageWidth); 
123					imageWidth = x;
124				}
125			}
126			// End Resizing
127			
128			// TODO don't use globals
129			TB_WIDTH = imageWidth + 30;
130			TB_HEIGHT = imageHeight + 60;
131			
132			// TODO empty window content instead
133			$("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + imageCount + prev.html + next.html + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div>");
134			
135			$("#TB_closeWindowButton").click(TB_remove);
136			
137			function buildClickHandler(image) {
138				return function() {
139					$("#TB_window").remove();
140					$("body").append("<div id='TB_window'></div>");
141					TB_show(image.caption, image.url, rel);
142					return false;
143				};
144			}
145			var goPrev = buildClickHandler(prev);
146			var goNext = buildClickHandler(next);
147			if ( prev.html ) {
148				$("#TB_prev").click(goPrev);
149			}
150			
151			if ( next.html ) {		
152				$("#TB_next").click(goNext);
153			}
154			
155			// TODO use jQuery, maybe with event fix plugin, or just get the necessary parts of it
156			document.onkeydown = function(e) {
157				if (e == null) { // ie
158					keycode = event.keyCode;
159				} else { // mozilla
160					keycode = e.which;
161				}
162				switch(keycode) {
163				case 27:
164					TB_remove();
165					break;
166				case 190:
167					if( next.html ) {
168						document.onkeydown = null;
169						goNext();
170					}
171					break;
172				case 188:
173					if( prev.html ) {
174						document.onkeydown = null;
175						goPrev();
176					}
177					break;
178				}
179			}
180			
181			// TODO don't remove loader etc., just hide and show later
182			TB_position();
183			$("#TB_load").remove();
184			$("#TB_ImageOff").click(TB_remove);
185			
186			// for safari using css instead of show
187			// TODO is that necessary? can't test safari
188			$("#TB_window").css({display:"block"});
189		}
190		imgPreloader.src = url;
191		
192	} else { //code to show html pages
193		
194		var queryString = url.match(/\?(.+)/)[1];
195		var params = TB_parseQuery( queryString );
196		
197		TB_WIDTH = (params['width']*1) + 30;
198		TB_HEIGHT = (params['height']*1) + 40;
199
200		var ajaxContentW = TB_WIDTH - 30,
201			ajaxContentH = TB_HEIGHT - 45;
202		
203		if(url.indexOf('TB_iframe') != -1){				
204			urlNoQuery = url.split('TB_');		
205			$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showIframe()'> </iframe>");
206		} else {
207			$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
208		}
209				
210		$("#TB_closeWindowButton").click(TB_remove);
211		
212			if(url.indexOf('TB_inline') != -1){	
213				$("#TB_ajaxContent").html($('#' + params['inlineId']).html());
214				TB_position();
215				$("#TB_load").remove();
216				$("#TB_window").css({display:"block"}); 
217			}else if(url.indexOf('TB_iframe') != -1){
218				TB_position();
219				if(frames['TB_iframeContent'] == undefined){//be nice to safari
220					$("#TB_load").remove();
221					$("#TB_window").css({display:"block"});
222					$(document).keyup( function(e){ var key = e.keyCode; if(key == 27){TB_remove()} });
223				}
224			}else{
225				$("#TB_ajaxContent").load(url, function(){
226					TB_position();
227					$("#TB_load").remove();
228					$("#TB_window").css({display:"block"}); 
229				});
230			}
231		
232	}
233	
234	$(window).resize(TB_position);
235	
236	document.onkeyup = function(e){ 	
237		if (e == null) { // ie
238			keycode = event.keyCode;
239		} else { // mozilla
240			keycode = e.which;
241		}
242		if(keycode == 27){ // close
243			TB_remove();
244		}	
245	}
246		
247}
248
249//helper functions below
250
251function TB_showIframe(){
252	$("#TB_load").remove();
253	$("#TB_window").css({display:"block"});
254}
255
256function TB_remove() {
257 	$("#TB_imageOff").unbind("click");
258	$("#TB_overlay").unbind("click");
259	$("#TB_closeWindowButton").unbind("click");
260	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
261	$("#TB_load").remove();
262	return false;

263}
264
265function TB_position() {
266	var pagesize = TB_getPageSize();	
267	var arrayPageScroll = TB_getPageScrollTop();
268	var style = {width: TB_WIDTH, left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2), top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2)};
269	$("#TB_window").css(style);
270}
271
272function TB_overlaySize(){
273	if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX) {	
274		yScroll = window.innerHeight + window.scrollMaxY;
275		xScroll = window.innerWidth + window.scrollMaxX;
276		var deff = document.documentElement;
277		var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
278		var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
279		xScroll -= (window.innerWidth - wff);
280		yScroll -= (window.innerHeight - hff);
281	} else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth){ // all but Explorer Mac
282		yScroll = document.body.scrollHeight;
283		xScroll = document.body.scrollWidth;
284	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
285		yScroll = document.body.offsetHeight;
286		xScroll = document.body.offsetWidth;
287  	}
288	$("#TB_overlay").css({"height": yScroll, "width": xScroll});
289	$("#TB_HideSelect").css({"height": yScroll,"width": xScroll});
290}
291
292function TB_load_position() {
293	var pagesize = TB_getPageSize();
294	var arrayPageScroll = TB_getPageScrollTop();
295	$("#TB_load")
296		.css({left: (arrayPageScroll[0] + (pagesize[0] - 100)/2), top: (arrayPageScroll[1] + ((pagesize[1]-100)/2)) })
297		.css({display:"block"});
298}
299
300function TB_parseQuery ( query ) {
301	// return empty object
302	if( !query )
303		return {};
304	var params = {};
305	
306	// parse query
307	var pairs = query.split(/[;&]/);
308	for ( var i = 0; i < pairs.length; i++ ) {
309		var pair = pairs[i].split('=');
310		if ( !pair || pair.length != 2 )
311			continue;
312		// unescape both key and value, replace "+" with spaces in value
313		params[unescape(pair[0])] = unescape(pair[1]).replace(/\+/g, ' ');
314   }
315   return params;
316}
317
318function TB_getPageScrollTop(){
319	var yScrolltop;
320	var xScrollleft;
321	if (self.pageYOffset || self.pageXOffset) {
322		yScrolltop = self.pageYOffset;
323		xScrollleft = self.pageXOffset;
324	} else if (document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft ){	 // Explorer 6 Strict
325		yScrolltop = document.documentElement.scrollTop;
326		xScrollleft = document.documentElement.scrollLeft;
327	} else if (document.body) {// all other Explorers
328		yScrolltop = document.body.scrollTop;
329		xScrollleft = document.body.scrollLeft;
330	}
331	arrayPageScroll = new Array(xScrollleft,yScrolltop) 
332	return arrayPageScroll;
333}
334
335function TB_getPageSize(){
336	var de = document.documentElement;
337	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
338	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight
339	arrayPageSize = new Array(w,h) 
340	return arrayPageSize;
341}

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