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still on scroll optimization

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This commit is contained in:
Peter Olu 2022-04-24 19:19:35 +01:00
parent 1cf0bfb474
commit e9744cbc79
1 changed files with 15 additions and 26 deletions
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41
src/views/dashboard/controls/Tab.vue
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@ -189,7 +189,7 @@ export default defineComponent({
const tabRef = ref<any>("");
const tabObserveContainer = ref<any>(null);
const currentItem = ref("");
const lastItem = ref("");
const firstItem = ref<any>();
const refScrollTimeOut = ref();
const currentScrollY = ref(0);
@ -208,20 +208,9 @@ export default defineComponent({
function scrollToGraph(e: any) {
document?.getElementById(`tabitem${e}`)?.scrollIntoView();
}
// function debounce(func: any, wait: number) {
// let timeout: any = null;
// return function (func, delayMs) {
// clearTimeout(timeout);
// timeout = setTimeout(() => {
// func();
// }, delayMs || 500);
// };
// }
// function scrollDecider() {
// console.log("runing debounce");
// console.log(window.scrollY);
// }
function observeItems(kill = false) {
const graphs = JSON.parse(JSON.stringify(dashboardStore.currentTabItems));
const observer = new IntersectionObserver((entries) => {
entries.forEach((element) => {
if (element.isIntersecting && element.intersectionRatio > 0) {
@ -231,11 +220,7 @@ export default defineComponent({
}
});
});
lastItem.value = `${
dashboardStore.currentTabItems[
dashboardStore.currentTabItems.length - 1
].i
}`;
firstItem.value = document?.getElementById(`tabitem${graphs[0].i}`)
document.querySelectorAll(".tabitem").forEach((element) => {
observer.observe(element);
});
@ -250,8 +235,7 @@ export default defineComponent({
() => dashboardStore.currentTabItems,
() => {
setTimeout(() => {
observeItems();
// console.log("Last Value:", lastItem.value);
observeItems();
}, 500);
}
);
@ -318,9 +302,11 @@ export default defineComponent({
);
}
function scrollToFirstGraph(scrollUp: boolean) {
const graphs = JSON.parse(JSON.stringify(dashboardStore.currentTabItems));
if (scrollUp) {
document?.getElementById(`tabitem${graphs[0].i}`)?.scrollIntoView();
const graphs = JSON.parse(JSON.stringify(dashboardStore.currentTabItems));
const thereisNextEl = document?.getElementById(`${currentItem.value}`) !== null
if (scrollUp && !thereisNextEl) {
console.log(firstItem.value)
firstItem.value.scrollIntoView();
}
}
document.body.addEventListener("click", handleClick, false);
@ -346,12 +332,15 @@ export default defineComponent({
}
// console.log("WindowScrollY Outside:", tabObserveContainer.value);
refScrollTimeOut.value = window.setTimeout(() => {
if (tabObserveContainer.value?.scrollTop === currentScrollY.value) {
if (
tabObserveContainer.value?.scrollTop > currentScrollY.value ||
tabObserveContainer.value?.scrollTop === currentScrollY.value
) {
scrollToFirstGraph(true)
console.log("Scrolled Down!")
}
currentScrollY.value = tabObserveContainer.value?.scrollTop
console.log("CurrentScrollY:", currentScrollY.value);
console.log("CurrentScrollY:", document?.getElementById(`${currentItem.value}`));
}, 100);
});