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This commit is contained in:
Andros Fenollosa
2020-08-03 16:43:12 +02:00
parent a6efdf85d4
commit e02334b46e
8 changed files with 287 additions and 268 deletions
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56
src/events/scroll.js Normal file
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//===
// FUNCTIONS
//===
/**
* Method add events is-scroll
* return void
*/
function addEventScroll() {
let eventScrollDown = 'is-scroll-down';
let eventScrollUp = 'is-scroll-up';
let elementsDown = getElementsValidatesByEvent(eventScrollDown);
let elementsUp = getElementsValidatesByEvent(eventScrollUp);
window.addEventListener("scroll", () => {
let posScroll = window.pageYOffset || document.documentElement.scrollTop;
// Scroll down
elementsDown.forEach((element) => {
if (posScroll > lastScrollTop) {
let params = splitParams(element, eventScrollDown);
switch(params.functionParent) {
case 'class':
switch(params.functionChild) {
case 'add':
element.classList.add(params.value);
break;
case 'remove':
element.classList.remove(params.value);
break;
}
break;
}
}
});
// Scroll up
elementsUp.forEach((element) => {
if (posScroll <= lastScrollTop) {
let params = splitParams(element, eventScrollUp);
switch(params.functionParent) {
case 'class':
switch(params.functionChild) {
case 'add':
element.classList.add(params.value);
break;
case 'remove':
element.classList.remove(params.value);
break;
}
break;
}
}
});
lastScrollTop = posScroll <= 0 ? 0 : posScroll; // For Mobile or negative scrolling
}, false);
}