https://radjuprekursur.com/wp-content/themes/onetone/plugins/jquery.nav.js?ver=1.4.14%20

1/*
2 * jQuery One Page Nav Plugin
3 * http://github.com/davist11/jQuery-One-Page-Nav
4 *
5 * Copyright (c) 2010 Trevor Davis (http://trevordavis.net)
6 * Dual licensed under the MIT and GPL licenses.
7 * Uses the same license as jQuery, see:
8 * http://jquery.org/license
9 *
10 * @version 3.0.0
11 *
12 * Example usage:
13 * $('#nav').onePageNav({
14 *   currentClass: 'current',
15 *   changeHash: false,
16 *   scrollSpeed: 750
17 * });
18 */
19
20;(function($, window, document, undefined){
21
22	// our plugin constructor
23	var OnePageNav = function(elem, options){
24		this.elem = elem;
25		this.$elem = $(elem);
26		this.options = options;
27		this.metadata = this.$elem.data('plugin-options');
28		this.$win = $(window);
29		this.sections = {};
30		this.didScroll = false;
31		this.$doc = $(document);
32		this.docHeight = this.$doc.height();
33	};
34	
35	var firstItem = true;
36
37	// the plugin prototype
38	OnePageNav.prototype = {
39		defaults: {
40			navItems: 'a',
41			currentClass: 'current',
42			changeHash: false,
43			easing: 'swing',
44			filter: '',
45			scrollSpeed: 750,
46			scrollThreshold: 0.5,
47			begin: false,
48			end: false,
49			scrollChange: false
50		},
51
52		init: function() {
53			// Introduce defaults that can be extended either
54			// globally or using an object literal.
55			this.config = $.extend({}, this.defaults, this.options, this.metadata);
56
57			this.$nav = this.$elem.find(this.config.navItems);
58
59			//Filter any links out of the nav
60			if(this.config.filter !== '') {
61				this.$nav = this.$nav.filter(this.config.filter);
62			}
63
64			//Handle clicks on the nav
65			this.$nav.on('click.onePageNav', $.proxy(this.handleClick, this));
66
67			//Get the section positions
68			this.getPositions();
69
70			//Handle scroll changes
71			this.bindInterval();
72
73			//Update the positions on resize too
74			this.$win.on('resize.onePageNav', $.proxy(this.getPositions, this));
75
76			return this;
77		},
78
79		adjustNav: function(self, $parent) {
80			
81			$('.site-nav li').removeClass(self.config.currentClass);
82			self.$elem.find('.' + self.config.currentClass).removeClass(self.config.currentClass);
83			
84			$parent.addClass(self.config.currentClass);
85			var sectionLoc = $parent.find('a').attr('href');
86			if( typeof sectionLoc !='undefined' && sectionLoc !='' ){
87			
88			var menuColor  = $(sectionLoc).data('menucolor');
89			if( menuColor =='' ){
90				menuColor  = $('article.homepage').data('menucolor');
91				   if( typeof menuColor =='undefined' || sectionLoc =='' ){
92					    menuColor = '#ffffff';
93					   }
94				}
95
96
97			$('ul.onetone-dots li a').css({'border':'2px solid '+menuColor});
98			$('ul.onetone-dots li.'+self.config.currentClass+' a,ul.onetone-dots li.'+self.config.currentClass+' a:hover').css({'background-color':menuColor,'color':menuColor});
99			
100			}
101			
102		},
103
104		bindInterval: function() {
105			var self = this;
106			var docHeight;
107
108			self.$win.on('scroll.onePageNav', function() {
109				self.didScroll = true;
110			});
111
112			self.t = setInterval(function() {
113				docHeight = self.$doc.height();
114
115				//If it was scrolled
116				if(self.didScroll) {
117					self.didScroll = false;
118					self.scrollChange();
119				}
120
121				//If the document height changes
122				if(docHeight !== self.docHeight) {
123					self.docHeight = docHeight;
124					self.getPositions();
125				}
126			}, 250);
127		},
128
129		getHash: function($link) {
130			return $link.attr('href').split('#')[1];
131		},
132
133		getPositions: function() {
134			var self = this;
135			var linkHref;
136			var topPos;
137			var $target;
138
139			self.$nav.each(function() {
140				linkHref = self.getHash($(this));
141				$target = $('#' + linkHref);
142
143				if($target.length) {
144					topPos = $target.offset().top;
145					self.sections[linkHref] = Math.round(topPos);
146				}
147			});
148		},
149
150		getSection: function(windowPos) {
151			var returnValue = null;
152			var windowHeight = Math.round(this.$win.height() * this.config.scrollThreshold);
153
154			for(var section in this.sections) {
155				if((this.sections[section] - windowHeight) < windowPos) {
156					returnValue = section;
157				}
158			}
159
160			return returnValue;
161		},
162
163		handleClick: function(e) {
164			var self = this;
165			var $link = $(e.currentTarget);
166			var $parent = $link.parent();
167			var newLoc = '#' + self.getHash($link);
168			
169			if( $("header").hasClass("fixed-header")){
170				 firstItem = false;
171				}
172            ////
173			var windowWidth = jQuery(window).width(); 
174			if(windowWidth < 919)
175			$(".top-nav").toggle();
176			
177			if(!$parent.hasClass(self.config.currentClass)) {
178				//Start callback
179				if(self.config.begin) {
180					self.config.begin();
181				}
182
183				//Change the highlighted nav item
184				
185                $parent = $('a[href$="'+ newLoc + '"]').parent();
186				self.adjustNav(self, $parent);
187				
188				//Removing the auto-adjust on scroll
189				self.unbindInterval();
190
191				//Scroll to the correct position
192				self.scrollTo(newLoc, function() {
193					//Do we need to change the hash?
194					if(self.config.changeHash) {
195						window.location.hash = newLoc;
196					}
197
198					//Add the auto-adjust on scroll back in
199					self.bindInterval();
200
201					//End callback
202					if(self.config.end) {
203						self.config.end();
204					}
205				});
206			}
207
208			e.preventDefault();
209		},
210
211		scrollChange: function() {
212			var windowTop = this.$win.scrollTop();

213			var position = this.getSection(windowTop);
214			var $parent;
215			
216			$('.main-nav li').removeClass(this.config.currentClass);
217			
218			//If the position is set
219			if(position !== null) {
220				$parent = this.$elem.find('a[href$="#' + position + '"]').parent();
221
222				//If it's not already the current section
223				if(!$parent.hasClass(this.config.currentClass)) {
224					//Change the highlighted nav item
225					$parent = $('a[href$="#' + position + '"]').parent();
226					this.adjustNav(this, $parent);
227
228					//If there is a scrollChange callback
229					if(this.config.scrollChange) {
230						this.config.scrollChange($parent);
231					}
232				}
233			}
234		},
235
236		scrollTo: function(target, callback) {
237		
238			if( typeof $(target).offset() !== "undefined" ){
239			var offset = $(target).offset().top;
240
241			//var id = $(target).attr('id');
242			var selectorHeight = $('.sticky-header').height();   
243			//if(typeof $('section.'+ id).offset() !== 'undefined'){
244			//	var offset =  $('section.'+ id).offset().top -selectorHeight;
245			var selectorHeight = $('.fxd-header').height(); 
246			
247			if( $("body.admin-bar").length ){
248				if(jQuery(window).width() < 765) {
249					stickyTop = 46;
250				
251				} else {
252					stickyTop = 32;
253				}
254			}else{
255					stickyTop = 0;
256				}
257		  			
258		  selectorHeight = selectorHeight + stickyTop - 1;
259		  
260		 		  
261		if($(window).width() <= 919) {
262			$(".site-nav").hide();
263		}
264					
265	        offset = offset - selectorHeight;
266
267			$('html, body').animate({
268				scrollTop: offset
269			}, this.config.scrollSpeed, this.config.easing, callback);
270			
271			//}
272			}
273		},
274
275		unbindInterval: function() {
276			clearInterval(this.t);
277			this.$win.unbind('scroll.onePageNav');
278		}
279	};
280
281	OnePageNav.defaults = OnePageNav.prototype.defaults;
282
283	$.fn.onePageNav = function(options) {
284		return this.each(function() {
285			new OnePageNav(this, options).init();
286		});
287	};
288
289})( jQuery, window , document );