1 |
61137
|
k.triantaf
|
/*! UIkit 2.27.5 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
|
2 |
|
|
(function(addon) {
|
3 |
|
|
|
4 |
|
|
var component;
|
5 |
|
|
|
6 |
|
|
if (window.UIkit2) {
|
7 |
|
|
component = addon(UIkit2);
|
8 |
|
|
}
|
9 |
|
|
|
10 |
|
|
if (typeof define == 'function' && define.amd) {
|
11 |
|
|
define('uikit-sticky', ['uikit'], function(){
|
12 |
|
|
return component || addon(UIkit2);
|
13 |
|
|
});
|
14 |
|
|
}
|
15 |
|
|
|
16 |
|
|
})(function(UI){
|
17 |
|
|
|
18 |
|
|
"use strict";
|
19 |
|
|
|
20 |
|
|
var $win = UI.$win,
|
21 |
|
|
$doc = UI.$doc,
|
22 |
|
|
sticked = [],
|
23 |
|
|
direction = 1;
|
24 |
|
|
|
25 |
|
|
UI.component('sticky', {
|
26 |
|
|
|
27 |
|
|
defaults: {
|
28 |
|
|
top : 0,
|
29 |
|
|
bottom : 0,
|
30 |
|
|
animation : '',
|
31 |
|
|
clsinit : 'uk-sticky-init',
|
32 |
|
|
clsactive : 'uk-active',
|
33 |
|
|
clsinactive : '',
|
34 |
|
|
getWidthFrom : '',
|
35 |
|
|
showup : false,
|
36 |
|
|
boundary : false,
|
37 |
|
|
media : false,
|
38 |
|
|
target : false,
|
39 |
|
|
disabled : false
|
40 |
|
|
},
|
41 |
|
|
|
42 |
|
|
boot: function() {
|
43 |
|
|
|
44 |
|
|
// should be more efficient than using $win.scroll(checkscrollposition):
|
45 |
|
|
UI.$doc.on('scrolling.uk.document', function(e, data) {
|
46 |
|
|
if (!data || !data.dir) return;
|
47 |
|
|
direction = data.dir.y;
|
48 |
|
|
checkscrollposition();
|
49 |
|
|
});
|
50 |
|
|
|
51 |
|
|
UI.$win.on('resize orientationchange', UI.Utils.debounce(function() {
|
52 |
|
|
|
53 |
|
|
if (!sticked.length) return;
|
54 |
|
|
|
55 |
|
|
for (var i = 0; i < sticked.length; i++) {
|
56 |
|
|
sticked[i].reset(true);
|
57 |
|
|
sticked[i].self.computeWrapper();
|
58 |
|
|
}
|
59 |
|
|
|
60 |
|
|
checkscrollposition();
|
61 |
|
|
}, 100));
|
62 |
|
|
|
63 |
|
|
// init code
|
64 |
|
|
UI.ready(function(context) {
|
65 |
|
|
|
66 |
|
|
setTimeout(function(){
|
67 |
|
|
|
68 |
|
|
UI.$('[data-uk-sticky]', context).each(function(){
|
69 |
|
|
|
70 |
|
|
var $ele = UI.$(this);
|
71 |
|
|
|
72 |
|
|
if (!$ele.data('sticky')) {
|
73 |
|
|
UI.sticky($ele, UI.Utils.options($ele.attr('data-uk-sticky')));
|
74 |
|
|
}
|
75 |
|
|
});
|
76 |
|
|
|
77 |
|
|
checkscrollposition();
|
78 |
|
|
}, 0);
|
79 |
|
|
});
|
80 |
|
|
},
|
81 |
|
|
|
82 |
|
|
init: function() {
|
83 |
|
|
|
84 |
|
|
var boundary = this.options.boundary, boundtoparent;
|
85 |
|
|
|
86 |
|
|
this.wrapper = this.element.wrap('<div class="uk-sticky-placeholder"></div>').parent();
|
87 |
|
|
this.computeWrapper();
|
88 |
|
|
this.wrapper.css({
|
89 |
|
|
'margin-top' : this.element.css('margin-top'),
|
90 |
|
|
'margin-bottom' : this.element.css('margin-bottom'),
|
91 |
|
|
'margin-left' : this.element.css('margin-left'),
|
92 |
|
|
'margin-right' : this.element.css('margin-right')
|
93 |
|
|
})
|
94 |
|
|
this.element.css('margin', 0);
|
95 |
|
|
|
96 |
|
|
if (boundary) {
|
97 |
|
|
|
98 |
|
|
if (boundary === true || boundary[0] === '!') {
|
99 |
|
|
|
100 |
|
|
boundary = boundary === true ? this.wrapper.parent() : this.wrapper.closest(boundary.substr(1));
|
101 |
|
|
boundtoparent = true;
|
102 |
|
|
|
103 |
|
|
} else if (typeof boundary === "string") {
|
104 |
|
|
boundary = UI.$(boundary);
|
105 |
|
|
}
|
106 |
|
|
}
|
107 |
|
|
|
108 |
|
|
this.sticky = {
|
109 |
|
|
self : this,
|
110 |
|
|
options : this.options,
|
111 |
|
|
element : this.element,
|
112 |
|
|
currentTop : null,
|
113 |
|
|
wrapper : this.wrapper,
|
114 |
|
|
init : false,
|
115 |
|
|
getWidthFrom : UI.$(this.options.getWidthFrom || this.wrapper),
|
116 |
|
|
boundary : boundary,
|
117 |
|
|
boundtoparent : boundtoparent,
|
118 |
|
|
top : 0,
|
119 |
|
|
calcTop : function() {
|
120 |
|
|
|
121 |
|
|
var top = this.options.top;
|
122 |
|
|
|
123 |
|
|
// dynamic top parameter
|
124 |
|
|
if (this.options.top && typeof(this.options.top) == 'string') {
|
125 |
|
|
|
126 |
|
|
// e.g. 50vh
|
127 |
|
|
if (this.options.top.match(/^(-|)(\d+)vh$/)) {
|
128 |
|
|
top = window.innerHeight * parseInt(this.options.top, 10)/100;
|
129 |
|
|
// e.g. #elementId, or .class-1,class-2,.class-3 (first found is used)
|
130 |
|
|
} else {
|
131 |
|
|
|
132 |
|
|
var topElement = UI.$(this.options.top).first();
|
133 |
|
|
|
134 |
|
|
if (topElement.length && topElement.is(':visible')) {
|
135 |
|
|
top = -1 * ((topElement.offset().top + topElement.outerHeight()) - this.wrapper.offset().top);
|
136 |
|
|
}
|
137 |
|
|
}
|
138 |
|
|
|
139 |
|
|
}
|
140 |
|
|
|
141 |
|
|
this.top = top;
|
142 |
|
|
},
|
143 |
|
|
|
144 |
|
|
reset: function(force) {
|
145 |
|
|
|
146 |
|
|
this.calcTop();
|
147 |
|
|
|
148 |
|
|
var finalize = function() {
|
149 |
|
|
this.element.css({position:'', top:'', width:'', left:'', margin:'0'});
|
150 |
|
|
this.element.removeClass([this.options.animation, 'uk-animation-reverse', this.options.clsactive].join(' '));
|
151 |
|
|
this.element.addClass(this.options.clsinactive);
|
152 |
|
|
this.element.trigger('inactive.uk.sticky');
|
153 |
|
|
|
154 |
|
|
this.currentTop = null;
|
155 |
|
|
this.animate = false;
|
156 |
|
|
|
157 |
|
|
}.bind(this);
|
158 |
|
|
|
159 |
|
|
|
160 |
|
|
if (!force && this.options.animation && UI.support.animation && !UI.Utils.isInView(this.wrapper)) {
|
161 |
|
|
|
162 |
|
|
this.animate = true;
|
163 |
|
|
|
164 |
|
|
this.element.removeClass(this.options.animation).one(UI.support.animation.end, function(){
|
165 |
|
|
finalize();
|
166 |
|
|
}).width(); // force redraw
|
167 |
|
|
|
168 |
|
|
this.element.addClass(this.options.animation+' '+'uk-animation-reverse');
|
169 |
|
|
} else {
|
170 |
|
|
finalize();
|
171 |
|
|
}
|
172 |
|
|
},
|
173 |
|
|
|
174 |
|
|
check: function() {
|
175 |
|
|
|
176 |
|
|
if (this.options.disabled) {
|
177 |
|
|
return false;
|
178 |
|
|
}
|
179 |
|
|
|
180 |
|
|
if (this.options.media) {
|
181 |
|
|
|
182 |
|
|
switch(typeof(this.options.media)) {
|
183 |
|
|
case 'number':
|
184 |
|
|
if (window.innerWidth < this.options.media) {
|
185 |
|
|
return false;
|
186 |
|
|
}
|
187 |
|
|
break;
|
188 |
|
|
case 'string':
|
189 |
|
|
if (window.matchMedia && !window.matchMedia(this.options.media).matches) {
|
190 |
|
|
return false;
|
191 |
|
|
}
|
192 |
|
|
break;
|
193 |
|
|
}
|
194 |
|
|
}
|
195 |
|
|
|
196 |
|
|
var scrollTop = $win.scrollTop(),
|
197 |
|
|
documentHeight = $doc.height(),
|
198 |
|
|
dwh = documentHeight - window.innerHeight,
|
199 |
|
|
extra = (scrollTop > dwh) ? dwh - scrollTop : 0,
|
200 |
|
|
elementTop = this.wrapper.offset().top,
|
201 |
|
|
etse = elementTop - this.top - extra,
|
202 |
|
|
active = (scrollTop >= etse);
|
203 |
|
|
|
204 |
|
|
if (active && this.options.showup) {
|
205 |
|
|
|
206 |
|
|
// set inactiv if scrolling down
|
207 |
|
|
if (direction == 1) {
|
208 |
|
|
active = false;
|
209 |
|
|
}
|
210 |
|
|
|
211 |
|
|
// set inactive when wrapper is still in view
|
212 |
|
|
if (direction == -1 && !this.element.hasClass(this.options.clsactive) && UI.Utils.isInView(this.wrapper)) {
|
213 |
|
|
active = false;
|
214 |
|
|
}
|
215 |
|
|
}
|
216 |
|
|
|
217 |
|
|
return active;
|
218 |
|
|
}
|
219 |
|
|
};
|
220 |
|
|
|
221 |
|
|
this.sticky.calcTop();
|
222 |
|
|
|
223 |
|
|
sticked.push(this.sticky);
|
224 |
|
|
},
|
225 |
|
|
|
226 |
|
|
update: function() {
|
227 |
|
|
checkscrollposition(this.sticky);
|
228 |
|
|
},
|
229 |
|
|
|
230 |
|
|
enable: function() {
|
231 |
|
|
this.options.disabled = false;
|
232 |
|
|
this.update();
|
233 |
|
|
},
|
234 |
|
|
|
235 |
|
|
disable: function(force) {
|
236 |
|
|
this.options.disabled = true;
|
237 |
|
|
this.sticky.reset(force);
|
238 |
|
|
},
|
239 |
|
|
|
240 |
|
|
computeWrapper: function() {
|
241 |
|
|
|
242 |
|
|
this.wrapper.css({
|
243 |
|
|
'height' : ['absolute','fixed'].indexOf(this.element.css('position')) == -1 ? this.element.outerHeight() : '',
|
244 |
|
|
'float' : this.element.css('float') != 'none' ? this.element.css('float') : ''
|
245 |
|
|
});
|
246 |
|
|
|
247 |
|
|
if (this.element.css('position') == 'fixed') {
|
248 |
|
|
this.element.css({
|
249 |
|
|
width: this.sticky.getWidthFrom.length ? this.sticky.getWidthFrom.width() : this.element.width()
|
250 |
|
|
});
|
251 |
|
|
}
|
252 |
|
|
}
|
253 |
|
|
});
|
254 |
|
|
|
255 |
|
|
function checkscrollposition(direction) {
|
256 |
|
|
|
257 |
|
|
var stickies = arguments.length ? arguments : sticked;
|
258 |
|
|
|
259 |
|
|
if (!stickies.length || $win.scrollTop() < 0) return;
|
260 |
|
|
|
261 |
|
|
var scrollTop = $win.scrollTop(),
|
262 |
|
|
documentHeight = $doc.height(),
|
263 |
|
|
windowHeight = $win.height(),
|
264 |
|
|
dwh = documentHeight - windowHeight,
|
265 |
|
|
extra = (scrollTop > dwh) ? dwh - scrollTop : 0,
|
266 |
|
|
newTop, containerBottom, stickyHeight, sticky;
|
267 |
|
|
|
268 |
|
|
for (var i = 0; i < stickies.length; i++) {
|
269 |
|
|
|
270 |
|
|
sticky = stickies[i];
|
271 |
|
|
|
272 |
|
|
if (!sticky.element.is(':visible') || sticky.animate) {
|
273 |
|
|
continue;
|
274 |
|
|
}
|
275 |
|
|
|
276 |
|
|
if (!sticky.check()) {
|
277 |
|
|
|
278 |
|
|
if (sticky.currentTop !== null) {
|
279 |
|
|
sticky.reset();
|
280 |
|
|
}
|
281 |
|
|
|
282 |
|
|
} else {
|
283 |
|
|
|
284 |
|
|
if (sticky.top < 0) {
|
285 |
|
|
newTop = 0;
|
286 |
|
|
} else {
|
287 |
|
|
stickyHeight = sticky.element.outerHeight();
|
288 |
|
|
newTop = documentHeight - stickyHeight - sticky.top - sticky.options.bottom - scrollTop - extra;
|
289 |
|
|
newTop = newTop < 0 ? newTop + sticky.top : sticky.top;
|
290 |
|
|
}
|
291 |
|
|
|
292 |
|
|
if (sticky.boundary && sticky.boundary.length) {
|
293 |
|
|
|
294 |
|
|
var bTop = sticky.boundary.offset().top;
|
295 |
|
|
|
296 |
|
|
if (sticky.boundtoparent) {
|
297 |
|
|
containerBottom = documentHeight - (bTop + sticky.boundary.outerHeight()) + parseInt(sticky.boundary.css('padding-bottom'));
|
298 |
|
|
} else {
|
299 |
|
|
containerBottom = documentHeight - bTop;
|
300 |
|
|
}
|
301 |
|
|
|
302 |
|
|
newTop = (scrollTop + stickyHeight) > (documentHeight - containerBottom - (sticky.top < 0 ? 0 : sticky.top)) ? (documentHeight - containerBottom) - (scrollTop + stickyHeight) : newTop;
|
303 |
|
|
}
|
304 |
|
|
|
305 |
|
|
|
306 |
|
|
if (sticky.currentTop != newTop) {
|
307 |
|
|
|
308 |
|
|
sticky.element.css({
|
309 |
|
|
position : 'fixed',
|
310 |
|
|
top : newTop,
|
311 |
|
|
width : sticky.getWidthFrom.length ? sticky.getWidthFrom.width() : sticky.element.width()
|
312 |
|
|
});
|
313 |
|
|
|
314 |
|
|
if (!sticky.init) {
|
315 |
|
|
|
316 |
|
|
sticky.element.addClass(sticky.options.clsinit);
|
317 |
|
|
|
318 |
|
|
if (location.hash && scrollTop > 0 && sticky.options.target) {
|
319 |
|
|
|
320 |
|
|
var $target = UI.$(location.hash);
|
321 |
|
|
|
322 |
|
|
if ($target.length) {
|
323 |
|
|
|
324 |
|
|
setTimeout((function($target, sticky){
|
325 |
|
|
|
326 |
|
|
return function() {
|
327 |
|
|
|
328 |
|
|
sticky.element.width(); // force redraw
|
329 |
|
|
|
330 |
|
|
var offset = $target.offset(),
|
331 |
|
|
maxoffset = offset.top + $target.outerHeight(),
|
332 |
|
|
stickyOffset = sticky.element.offset(),
|
333 |
|
|
stickyHeight = sticky.element.outerHeight(),
|
334 |
|
|
stickyMaxOffset = stickyOffset.top + stickyHeight;
|
335 |
|
|
|
336 |
|
|
if (stickyOffset.top < maxoffset && offset.top < stickyMaxOffset) {
|
337 |
|
|
scrollTop = offset.top - stickyHeight - sticky.options.target;
|
338 |
|
|
window.scrollTo(0, scrollTop);
|
339 |
|
|
}
|
340 |
|
|
};
|
341 |
|
|
|
342 |
|
|
})($target, sticky), 0);
|
343 |
|
|
}
|
344 |
|
|
}
|
345 |
|
|
}
|
346 |
|
|
|
347 |
|
|
sticky.element.addClass(sticky.options.clsactive).removeClass(sticky.options.clsinactive);
|
348 |
|
|
sticky.element.trigger('active.uk.sticky');
|
349 |
|
|
sticky.element.css('margin', '');
|
350 |
|
|
|
351 |
|
|
if (sticky.options.animation && sticky.init && !UI.Utils.isInView(sticky.wrapper)) {
|
352 |
|
|
sticky.element.addClass(sticky.options.animation);
|
353 |
|
|
}
|
354 |
|
|
|
355 |
|
|
sticky.currentTop = newTop;
|
356 |
|
|
}
|
357 |
|
|
}
|
358 |
|
|
|
359 |
|
|
sticky.init = true;
|
360 |
|
|
}
|
361 |
|
|
}
|
362 |
|
|
|
363 |
|
|
return UI.sticky;
|
364 |
|
|
});
|