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scrollable sticky widgets attempt
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Freeplay
parent
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commit
1fbd4af4b0
3 changed files with 48 additions and 73 deletions
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@ -2,79 +2,56 @@ export class StickySidebar {
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private lastScrollTop = 0;
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private container: HTMLElement;
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private el: HTMLElement;
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private spacer: HTMLElement;
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private marginTop: number;
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private isTop = false;
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private isBottom = false;
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private offsetTop: number;
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private globalHeaderHeight = 59;
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constructor(
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container: StickySidebar["container"],
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marginTop = 0,
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globalHeaderHeight = 0,
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) {
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this.container = container;
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this.container.style.display = "flex";
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this.el = this.container.children[0] as HTMLElement;
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this.el.style.position = "sticky";
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this.spacer = document.createElement("div");
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this.container.prepend(this.spacer);
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this.marginTop = marginTop;
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this.offsetTop = this.container.getBoundingClientRect().top;
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this.globalHeaderHeight = globalHeaderHeight;
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}
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public calc(scrollTop: number) {
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if (scrollTop > this.lastScrollTop) {
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// downscroll
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const overflow = Math.max(
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0,
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this.globalHeaderHeight +
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(this.el.clientHeight + this.marginTop) -
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window.innerHeight,
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);
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this.el.style.bottom = null;
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this.el.style.top = `${
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-overflow + this.marginTop + this.globalHeaderHeight
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}px`;
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if (scrollTop > this.lastScrollTop) {
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// downscroll
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this.isTop = false;
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this.isBottom =
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scrollTop + window.innerHeight >=
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scrollTop + window.innerHeight >
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this.el.offsetTop + this.el.clientHeight;
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if (this.isTop) {
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this.isTop = false;
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this.spacer.style.marginTop = `${Math.max(
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0,
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this.globalHeaderHeight +
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this.lastScrollTop +
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this.marginTop -
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this.offsetTop,
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)}px`;
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}
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} else {
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} else {
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// upscroll
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const overflow =
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this.globalHeaderHeight +
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(this.el.clientHeight + this.marginTop) -
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window.innerHeight;
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this.el.style.top = null;
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this.el.style.bottom = `${-overflow}px`;
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this.isBottom = false;
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this.isTop = scrollTop < this.el.offsetTop + 1;
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}
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this.isTop =
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scrollTop + this.marginTop + this.globalHeaderHeight <=
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this.el.offsetTop;
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if (this.isBottom) {
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this.isBottom = false;
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this.spacer.style.marginTop = `${
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this.globalHeaderHeight +
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this.lastScrollTop +
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this.marginTop -
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this.offsetTop -
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overflow
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}px`;
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if (this.isTop) {
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if (this.el.style.alignSelf != "flex-start") {
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this.el.style.position = "sticky";
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this.el.style.bottom = null;
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this.el.style.top = "0px";
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this.el.style.alignSelf = "flex-start";
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console.log("top");
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}
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this.offsetTop = scrollTop;
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} else if (this.isBottom) {
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if (this.el.style.alignSelf != "flex-end") {
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this.el.style.position = "sticky";
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this.el.style.bottom = "0px";
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this.el.style.top = null;
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this.el.style.alignSelf = "flex-end";
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console.log("bottom");
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}
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this.offsetTop = window.innerHeight + scrollTop - this.el.scrollHeight;
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} else {
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this.el.style.position = "relative";
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this.el.style.top = this.offsetTop + "px";
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this.el.style.bottom = null;
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this.el.style.alignSelf = null;
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}
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this.lastScrollTop = scrollTop <= 0 ? 0 : scrollTop;
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@ -20,7 +20,7 @@
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</MkStickyContainer>
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<div v-if="isDesktop" ref="widgetsEl" class="widgets-container">
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<XWidgets />
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<XWidgets @mounted="attachSticky" />
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</div>
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<button
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@ -380,6 +380,13 @@ const onContextmenu = (ev: MouseEvent) => {
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);
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};
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const attachSticky = (el: any) => {
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const sticky = new StickySidebar(widgetsEl);
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addEventListener("scroll", () => {
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sticky.calc(window.scrollY)
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}, { passive: true });
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};
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function top() {
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window.scroll({ top: 0, behavior: "smooth" });
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}
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@ -440,7 +447,7 @@ console.log(mainRouter.currentRoute.value.name);
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$widgets-hide-threshold: 1090px;
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// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
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height: 100%;
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min-height: calc(var(--vh, 1vh) * 100);
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box-sizing: border-box;
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display: flex;
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@ -550,14 +557,9 @@ console.log(mainRouter.currentRoute.value.name);
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}
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> .widgets-container {
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margin-right: calc(var(--margin) / 2);
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width: calc(300px + (var(--margin) * 1.5));
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flex: 0 0 auto;
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padding: 0 var(--margin);
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width: 300px;
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box-sizing: content-box;
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> :deep(.widgets) {
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padding-left: var(--margin);
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padding-right: calc(var(--margin) / 2);
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}
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@media (max-width: $widgets-hide-threshold) {
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display: none;
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@ -85,22 +85,18 @@ function updateWidgets(widgets) {
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<style lang="scss" scoped>
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.widgets {
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position: sticky;
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top: var(--stickyTop, 0px);
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height: min-content;
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min-height: 100vh;
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max-height: 100vh;
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box-sizing: content-box;
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overflow: hidden auto;
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&:not(:hover):not(:focus-within)::-webkit-scrollbar {
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width: 0;
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}
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padding: var(--margin) 0;
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box-sizing: border-box;
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> * {
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margin: var(--margin) 0;
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width: 300px;
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}
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> :first-child {
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margin-top: calc(var(--margin) * 2);
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&:first-child {
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margin-top: 0;
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}
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}
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> .add {
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