https://www.gddinstruments.com/components/com_proforms/js/scrollconfirm.js

1// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2// @license: Mad4Media Javascipt License - copyright Mad4Media - Fahrettin Kutyol - All rights reserved    ++
3// (re-) publishing or forking for any purpose of commercial or non-commercial use is not allowed.		   ++
4// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
5
6
7var m4jScrollConfirm = {
8	fields: [],
9	submitShows: 1,
10	length: 0,
11	init: function(){
12		var self = m4jScrollConfirm;
13		var fields =  dojo.query(".m4jScrollConfirm");
14		
15		fields.forEach(dojo.hitch(this,function(node){
16			node.scrollTop = 0;
17			node.bounds = dojo.coords(node);
18			var isScroll = node.bounds.h - node.scrollHeight - dojo._getBorderExtents(node).h;
19			if(isScroll){
20				node.scrolledToEnd = 0;
21				node.onscroll = function(el){m4jScrollConfirm.scrollPosition(this);};
22				self.fields.push(node);
23			}else{
24				var hiColor = node.getAttribute("lang");
25				if(hiColor) dojo.style(node,{borderColor: hiColor});
26			}
27		}));
28		self.length = self.fields.length;
29		if( self.length ){
30			self.submitShows = 0;
31			var wrap = dojo.byId("m4jSubmitWrap");
32			wrap.oldDisplay = wrap.style.display;
33			dojo.style(wrap,{display:"none"});
34			m4jCancelSubmit = true;
35		}
36	},
37	
38	check: function(){
39		if(this.submitShows) return false;
40		var count = 0;
41		var length = this.length;
42		dojo.forEach(this.fields,dojo.hitch(this,function(node){
43			if(node.scrolledToEnd) count++; 
44		}));
45		if(!(length - count)){
46			var wrap = dojo.byId("m4jSubmitWrap");
47			var displayValue = wrap.oldDisplay ? wrap.oldDisplay : "block";
48			dojo.style(wrap,{display: displayValue, opacity: 0});
49			dojo.anim(wrap,{opacity: 1});
50			m4jCancelSubmit = false;
51			this.submitShows = 1;
52		}
53	},
54	
55	scrollPosition: function(node){
56		var bounds = node.bounds;
57		var isEndMath = node.scrollHeight - bounds.h - node.scrollTop;
58		if(isEndMath <= 0){
59			var hiColor = node.getAttribute("lang");
60			if(hiColor) dojo.style(node,{borderColor: hiColor});
61			node.scrolledToEnd = 1;
62			m4jScrollConfirm.check();
63		}
64		
65	}
66}
67
68
69
70dojo.addOnLoad(m4jScrollConfirm.init);