https://www.alnwickbaptist.org.uk/Images/Content/2414/Templates/56328/LastResort.js

1/* LastResort JS file */
2
3$(document).ready(function ()
4{ 'use strict';
5
6// function to turn a slice name into a selector reference for the corresponding <section> tag
7function GetSectionTagRef(SliceName) {
8	return 'section.' + SliceName + ' ';
9}
10
11var SectionTag, SectionTags; // will be used to hold required slices
12function SectionTagExists(SliceName) {
13	if (SectionTags.hasClass(SliceName)) {
14		SectionTag = SectionTags.filter(GetSectionTagRef(SliceName));
15		if (SectionTag.length !== 0) { // at least one slice exists, great. You could have more than one in theory.
16			return true;
17		}
18	}
19	SectionTag = undefined; // remove all data.
20	return false;
21}
22
23// function to test if text exists.
24var sAttrText, sAttrText2, sAttrText3, sAttrText4; // Results come back in these variables.
25var DollarTextarea = $("<textarea/>"); // store this once.
26function TextExists(attrText, bSplit) {
27
28	if (attrText === undefined) {return false;}
29	if (attrText === null) {return false;}
30
31	var TextToProcess = attrText.trim();
32	if (TextToProcess === '') {return false;}
33
34	// decode the text, so that &amp;lt; becomes < etc.
35	// This works by turning into HTML and then turning back into text.
36	if (TextToProcess.indexOf('&') !== -1) { // we could use the .includes('&') method, but it is quite new, so some browsers can't cope.
37		TextToProcess = DollarTextarea.html(TextToProcess).text();
38	}
39	if (TextToProcess === '') {return false;}
40
41	sAttrText = ''; // set return values to blank.
42	sAttrText2 = '';
43	sAttrText3 = '';
44	sAttrText4 = '';
45	if (bSplit) {
46		var arrSplitText = TextToProcess.split('*');
47		sAttrText = arrSplitText[0].trim();
48		if (arrSplitText.length > 1) {sAttrText2 = arrSplitText[1].trim();}
49		if (arrSplitText.length > 2) {sAttrText3 = arrSplitText[2].trim();}
50		if (arrSplitText.length > 3) {sAttrText4 = arrSplitText[3].trim();}
51	} else {
52		sAttrText = TextToProcess;
53	}
54
55	return (sAttrText + sAttrText2 + sAttrText3 + sAttrText4 !== '');
56}
57
58// Make slides work if they have a link, but no caption.
59function FixBxSlider(SliceName) {
60	if (SectionTagExists(SliceName)) { // check if slice exists, and load into SectionTag if it does
61        SectionTag.find('img').each(function() {
62			var ThisImg = $(this);
63			if(!ThisImg.next().hasClass('caption')){ // No caption at all
64				if (TextExists(ThisImg.parent().attr('href'), false)) { // but there is a link...
65					var ButtonLink = '<a class="slideButton Invisible" href="' + sAttrText + '">&nbsp;</a>';
66					var caption = '<div class="caption">' + ButtonLink + '</div>';
67					$(caption).insertAfter(ThisImg);
68                  	//console.log(sAttrText);
69				}
70			}
71		});
72	}
73}
74 
75// Make slides work if they have a link, but no caption.
76function FixBxSliderNewTabButtons(SliceName) {
77	if (SectionTagExists(SliceName)) { // check if slice exists, and load into SectionTag if it does
78        SectionTag.find('a.slideButton').each(function() {
79			var ThisA = $(this);
80          	var P = ThisA.parent();
81			var bTargetBlank = (P.parent().attr('target') === "_blank")
82            					|| (P.prev().prev().attr('target') === "_blank");
83			if(bTargetBlank){
84				ThisA.attr('target','_blank');
85			}
86		});
87	}
88}
89
90var bOnTouchDevice = ('ontouchstart' in window) || (navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0);
91var BodyTag = $('body');
92var bLoggedIn = BodyTag.hasClass('logged_in_user');
93SectionTags = BodyTag.find('section'); // Store all the section tags to speed up later code.
94var bOnContentPage = SectionTags.hasClass('slice_content_page');
95var bOnHomePage = SectionTags.hasClass('slice_SlidesFullWidth');
96
97// Hide the visitor widget if the article does not publicly exist.
98if (!bLoggedIn && SectionTagExists('SeekerBox')) {
99	if(SectionTag.children('div.FullSeekerArticle').find('div.ArticleBody').length === 0){
100		SectionTag.addClass('HideElement').hide();
101	}
102}
103
104if (bOnHomePage) {
105  	// hide the Covid banner if empty
106 	if (SectionTagExists('CoronaVirus')) {
107      if(SectionTag.find('div.ArticleBody').length === 0){
108        SectionTag.hide();
109      }
110	}
111  
112  	// hide the service times/location slice if empty
113 	if (SectionTagExists('slice_ServiceText_L')) {
114      var Blocks = SectionTag.find('div.blocks');
115      if(Blocks.length === 1){
116        if(Blocks.find('div.ArticleBody').length === 0){
117          SectionTag.hide();
118        }
119      }
120	}  
121
122  if(bOnTouchDevice){
123    // Make slides work on touch devices if they have a link, but no caption.
124      FixBxSlider('slice_SlidesFullWidth');
125      FixBxSlider('slice_WhatsOnSlidesEB_L');
126  }
127  FixBxSliderNewTabButtons('slice_SlidesFullWidth');
128  FixBxSliderNewTabButtons('slice_WhatsOnSlidesEB_L');
129}
130
131// Make sure anchor links do not dissappear behind a fixed header.
132if (bOnContentPage) {
133	var iHeaderHeight = 0;
134	if (SectionTagExists('slice_Header_L')) {
135		var CssPosition = SectionTag.css('position');
136		if (CssPosition === 'fixed'){ // only do if we have a fixed header.
137			iHeaderHeight = SectionTag.outerHeight();
138		}
139	}
140	if (iHeaderHeight > 0 && SectionTagExists('slice_content_page')) {
141		var HashLinks = SectionTag.find('a:not([href="#"])[href^="#"]');
142		HashLinks.click(function(){
143			window.setTimeout(function(){window.scrollBy(0, -iHeaderHeight);}, 250);

143 // wait 250ms, then scroll down, so link is not under the header.
144		});
145	}
146}
147 
148 // Fix issue with scrolling on search results pages.
149 var SP = BodyTag.find('section.slice_system_page._publisher_search_aspx div.system_pager');
150 if(SP.length > 0){
151   var Pager = SP.find('span[id$="_dpArticles"]');
152   if(Pager.length === 1){
153     var A = Pager.find('a.system_pager_next');
154     var S = A.attr('href');
155     if(typeof S !== typeof undefined){
156       S = S.replace('javascript:_','javascript:window.scrollTo(0,0);_');
157       A.attr('href', S);
158     }
159     A = Pager.find('a.system_pager_prev');
160     S = A.attr('href');
161     if(typeof S !== typeof undefined){
162       S = S.replace('javascript:_','javascript:window.scrollTo(0,0);_');
163       A.attr('href', S);
164     }
165     A = Pager.find('select');
166     S = A.attr('onchange');
167     if(typeof S !== typeof undefined){
168       S = S.replace('javascript:s','javascript:window.scrollTo(0,0);s');
169       A.attr('onchange', S);
170     }
171   }
172   Pager = SP.find('span[id$="dpEvents"]');
173   if(Pager.length === 1){
174     var A = Pager.find('a.system_pager_next');
175     var S = A.attr('href');
176     if(typeof S !== typeof undefined){
177       S = S.replace('javascript:_','javascript:window.scrollTo(0,0);_');
178       A.attr('href', S);
179     }
180     A = Pager.find('a.system_pager_prev');
181     S = A.attr('href');
182     if(typeof S !== typeof undefined){
183       S = S.replace('javascript:_','javascript:window.scrollTo(0,0);_');
184       A.attr('href', S);
185     }
186     A = Pager.find('select');
187     S = A.attr('onchange');
188     if(typeof S !== typeof undefined){
189       S = S.replace('javascript:s','javascript:window.scrollTo(0,0);s');
190       A.attr('onchange', S);
191     }
192   }
193 }
194 
195// Hide mobile register link on sites that don't need it.
196 if(!bLoggedIn){
197   var HSB = BodyTag.find('div.HiddenStatusBar');
198   if(HSB.length > 0){
199     if(HSB.find('a.register_link').length === 0){
200       BodyTag.find('header ul.slicknav_nav li.ExtraLink a[href]').each(function(){
201         var T = $(this);
202         var S = T.attr('href').trim().toLowerCase();
203         if(S === '/user/registration.aspx'){T.parent().addClass('HideElement').hide();}
204       });
205     }
206   }
207 }
208
209});