https://lexlink.eu/scripts/subModal.js

1/**
2 * SUBMODAL v1.6
3 * Used for displaying DHTML only popups instead of using buggy modal windows.
4 *
5 * By Subimage LLC
6 * http://www.subimage.com
7 *
8 * Contributions by:
9 * 	Eric Angel - tab index code
10 * 	Scott - hiding/showing selects for IE users
11 *	Todd Huss - inserting modal dynamically and anchor classes
12 *
13 * Up to date code can be found at http://submodal.googlecode.com
14 */
15
16// Popup code
17var gPopupMask = null;
18var gPopupContainer = null;
19var gPopFrame = null;
20var gReturnFunc;
21var gPopupIsShown = false;
22var gDefaultPage = "./loading.html";
23var gHideSelects = false;
24var gReturnVal = null;
25
26var gTabIndexes = new Array();
27// Pre-defined list of tags we want to disable/enable tabbing into
28var gTabbableTags = new Array("A","BUTTON","TEXTAREA","INPUT","IFRAME");	
29
30// If using Mozilla or Firefox, use Tab-key trap.
31if (!document.all) {
32	document.onkeypress = keyDownHandler;
33}
34
35/**
36 * Initializes popup code on load.	
37 */
38function initPopUp() {
39
40	// Add the HTML to the body
41	theBody = document.getElementsByTagName('BODY')[0];
42	popmask = document.createElement('div');
43	popmask.id = 'popupMask';
44	popcont = document.createElement('div');
45	popcont.id = 'popupContainer';
46	popcont.innerHTML = '' +
47		'<div id="popupInner">' +
48			'<div id="popupTitleBar">' +
49				'<div id="popupTitle"></div>' +
50				'<div id="popupControls">' +
51					'<img src="./img/cancelOption.png" onclick="hidePopWin(true);" id="popCloseBox" />' +
52				'</div>' +
53			'</div>' +
54			'<iframe src="'+ gDefaultPage +'" style="width:100%;height:100%;background-color:transparent;" scrolling="auto" frameborder="0" allowtransparency="true" id="popupFrame" name="popupFrame" width="100%" height="100%"></iframe>' +
55		'</div>';
56	theBody.appendChild(popmask);
57	theBody.appendChild(popcont);
58	
59	gPopupMask = document.getElementById("popupMask");
60	gPopupContainer = document.getElementById("popupContainer");
61	gPopFrame = document.getElementById("popupFrame");	
62	
63	// check to see if this is IE version 6 or lower. hide select boxes if so
64	// maybe they'll fix this in version 7?
65	var brsVersion = parseInt(window.navigator.appVersion.charAt(0), 10);
66	if (brsVersion <= 6 && window.navigator.userAgent.indexOf("MSIE") > -1) {
67		gHideSelects = true;
68	}
69	
70	// Add onclick handlers to 'a' elements of class submodal or submodal-width-height
71	var elms = document.getElementsByTagName('a');
72	for (i = 0; i < elms.length; i++) {
73		if (elms[i].className.indexOf("submodal") == 0) { 
74			// var onclick = 'function (){showPopWin(\''+elms[i].href+'\','+width+', '+height+', null);return false;};';
75			// elms[i].onclick = eval(onclick);
76			elms[i].onclick = function(){
77				// default width and height
78				var width = 400;
79				var height = 200;
80				// Parse out optional width and height from className
81				params = this.className.split('-');
82				if (params.length == 3) {
83					width = parseInt(params[1]);
84					height = parseInt(params[2]);
85				}
86				showPopWin(this.href,width,height,null); return false;
87			}
88		}
89	}
90}
91try
92{
93    addEvent(window, "load", initPopUp);
94}catch(Ex){}
95
96 /**
97	* @argument width - int in pixels
98	* @argument height - int in pixels
99	* @argument url - url to display
100	* @argument returnFunc - function to call when returning true from the window.
101	* @argument showCloseBox - show the close box - default true
102	*/
103function showPopWin(url, width, height, returnFunc, showCloseBox) {
104    // show or hide the window close widget
105    
106    document.body.style.overflow = "hidden";
107	
108	if (showCloseBox == null || showCloseBox == true) {
109		document.getElementById("popCloseBox").style.display = "block";
110	} else {
111		document.getElementById("popCloseBox").style.display = "none";
112	}
113	gPopupIsShown = true;
114	disableTabIndexes();
115	gPopupMask.style.display = "block";
116	gPopupContainer.style.display = "block";
117	// calculate where to place the window on screen
118	centerPopWin(width, height);
119	
120	var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);
121
122
123	gPopupContainer.style.width = width + "px";
124	gPopupContainer.style.height = (height+titleBarHeight) + "px";
125	
126	setMaskSize();
127
128	// need to set the width of the iframe to the title bar width because of the dropshadow
129	// some oddness was occuring and causing the frame to poke outside the border in IE6
130	gPopFrame.style.width = parseInt(document.getElementById("popupTitleBar").offsetWidth, 10) + "px";
131	gPopFrame.style.height = (height) + "px";
132	
133	// set the url
134	gPopFrame.src = url;
135	
136	gReturnFunc = returnFunc;
137	// for IE
138	if (gHideSelects == true) {
139		hideSelectBoxes();
140	}
141	
142	window.setTimeout("setPopTitle();", 600);
143}
144
145//
146var gi = 0;
147function centerPopWin(width, height) {
148	if (gPopupIsShown == true) {
149		if (width == null || isNaN(width)) {
150			width = gPopupContainer.offsetWidth;
151		}
152		if (height == null) {
153			height = gPopupContainer.offsetHeight;
154		}
155		
156		//var theBody = document.documentElement;
157		var theBody = document.getElementsByTagName("BODY")[0];
158		//theBody.style.overflow = "hidden";
159		var scTop = parseInt(getScrollTop(),10);
160		var scLeft = parseInt(theBody.scrollLeft,10);
161	
162		setMaskSize();
163		
164		//window.status = gPopupMask.style.top + " " + gPopupMask.style.left + " " + gi++;
165		
166		var titleBarHeight = parseInt(document.getElementById("popupTitleBar").offsetHeight, 10);
167		

168		var fullHeight = getViewportHeight();
169		var fullWidth = getViewportWidth();
170		
171		gPopupContainer.style.top = (scTop + ((fullHeight - (height+titleBarHeight)) / 2)) + "px";
172		gPopupContainer.style.left =  (scLeft + ((fullWidth - width) / 2)) + "px";
173		//alert(fullWidth + " " + width + " " + gPopupContainer.style.left);
174	}
175}
176try{
177    addEvent(window, "resize", centerPopWin);
178    addEvent(window, "scroll", centerPopWin);
179    window.onscroll = centerPopWin;
180}catch(Ex){}
181
182/**
183 * Sets the size of the popup mask.
184 *
185 */
186function setMaskSize() {
187	var theBody = document.getElementsByTagName("BODY")[0];
188			
189	var fullHeight = getViewportHeight();
190	var fullWidth = getViewportWidth();
191	
192	// Determine what's bigger, scrollHeight or fullHeight / width
193	if (fullHeight > theBody.scrollHeight) {
194		popHeight = fullHeight;
195	} else {
196		popHeight = theBody.scrollHeight;
197	}
198	
199	if (fullWidth > theBody.scrollWidth) {
200		popWidth = fullWidth;
201	} else {
202		popWidth = theBody.scrollWidth;
203	}
204	
205	gPopupMask.style.height = popHeight + "px";
206	gPopupMask.style.width = popWidth + "px";
207}
208
209/**
210 * @argument callReturnFunc - bool - determines if we call the return function specified
211 * @argument returnVal - anything - return value 
212 */
213function hidePopWin(callReturnFunc) {
214	gPopupIsShown = false;
215	var theBody = document.getElementsByTagName("BODY")[0];
216	theBody.style.overflow = "";
217	restoreTabIndexes();
218	if (gPopupMask == null) {
219		return;
220	}
221	gPopupMask.style.display = "none";
222	gPopupContainer.style.display = "none";
223	if (callReturnFunc == true && gReturnFunc != null) {
224		// Set the return code to run in a timeout.
225		// Was having issues using with an Ajax.Request();
226		gReturnVal = window.frames["popupFrame"].returnVal;
227		window.setTimeout('gReturnFunc(gReturnVal);', 1);
228	}
229	gPopFrame.src = gDefaultPage;
230	// display all select boxes
231	if (gHideSelects == true) {
232		displaySelectBoxes();
233	}
234	document.body.style.overflow = "auto";
235}
236
237/**
238 * Sets the popup title based on the title of the html document it contains.
239 * Uses a timeout to keep checking until the title is valid.
240 */
241function setPopTitle() {
242	return;
243	if (window.frames["popupFrame"].document.title == null) {
244		window.setTimeout("setPopTitle();", 10);
245	} else {
246		document.getElementById("popupTitle").innerHTML = window.frames["popupFrame"].document.title;
247	}
248}
249
250// Tab key trap. iff popup is shown and key was [TAB], suppress it.
251// @argument e - event - keyboard event that caused this function to be called.
252function keyDownHandler(e) {
253    if (gPopupIsShown && e.keyCode == 9)  return false;
254}
255
256// For IE.  Go through predefined tags and disable tabbing into them.
257function disableTabIndexes() {
258	if (document.all) {
259		var i = 0;
260		for (var j = 0; j < gTabbableTags.length; j++) {
261			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
262			for (var k = 0 ; k < tagElements.length; k++) {
263				gTabIndexes[i] = tagElements[k].tabIndex;
264				tagElements[k].tabIndex="-1";
265				i++;
266			}
267		}
268	}
269}
270
271// For IE. Restore tab-indexes.
272function restoreTabIndexes() {
273	if (document.all) {
274		var i = 0;
275		for (var j = 0; j < gTabbableTags.length; j++) {
276			var tagElements = document.getElementsByTagName(gTabbableTags[j]);
277			for (var k = 0 ; k < tagElements.length; k++) {
278				tagElements[k].tabIndex = gTabIndexes[i];
279				tagElements[k].tabEnabled = true;
280				i++;
281			}
282		}
283	}
284}
285
286
287/**
288 * Hides all drop down form select boxes on the screen so they do not appear above the mask layer.
289 * IE has a problem with wanted select form tags to always be the topmost z-index or layer
290 *
291 * Thanks for the code Scott!
292 */
293function hideSelectBoxes() {
294  var x = document.getElementsByTagName("SELECT");
295
296  for (i=0;x && i < x.length; i++) {
297    x[i].style.visibility = "hidden";
298  }
299}
300
301/**
302 * Makes all drop down form select boxes on the screen visible so they do not 
303 * reappear after the dialog is closed.
304 * 
305 * IE has a problem with wanting select form tags to always be the 
306 * topmost z-index or layer.
307 */
308function displaySelectBoxes() {
309  var x = document.getElementsByTagName("SELECT");
310
311  for (i=0;x && i < x.length; i++){
312    x[i].style.visibility = "visible";
313  }
314}