123 lines
4.4 KiB
TypeScript
123 lines
4.4 KiB
TypeScript
import { h, qsa } from "@/util.ts";
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import { type CSSProperties, defineComponent, onBeforeUnmount, onMounted, ref } from "vue";
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const carrierStyle = {
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opacity: "0",
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display: "block",
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pointerEvents: "none",
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backgroundColor: "black",
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border: "white solid 1px",
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color: "white",
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padding: "10px",
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position: "absolute",
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zIndex: "1",
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overflow: "hidden",
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height: "0",
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width: "0",
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transition: "opacity 200ms, height 200ms, width 200ms",
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} satisfies CSSProperties;
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const textCarrierStyle = {
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width: "350px",
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display: "block",
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overflow: "hidden",
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} satisfies CSSProperties;
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const defaultWidth = 350;
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export default defineComponent({
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name: "dj-sexy-tooltip",
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setup() {
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const active = ref(false);
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const carrier = ref<HTMLElement | null>(null);
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const textCarrier = ref<HTMLElement | null>(null);
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onMounted(() => {
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document.body.appendChild(h("style", { textContent: `.tooltip { display: none; }` }));
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document.body.style.position = "relative";
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document.addEventListener("mousemove", (event) => this.rerenderTooltip({ x: event.pageX, y: event.pageY }));
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});
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function rerenderTooltip(mousePos: { x: number; y: number }) {
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const newText = this.getTooltipTextForHoveredElement(mousePos);
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if (newText !== this.textCarrier) {
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this.transitionTooltipSize(newText);
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const tooltipHasText = newText !== "";
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if (tooltipHasText !== this.active) {
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this.toggleActive();
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}
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}
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if (this.isStillVisible()) {
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this.updatePosition(mousePos);
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}
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}
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function isStillVisible() {
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return getComputedStyle(carrier.value).opacity !== "0";
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}
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function updatePosition(pos: { x: number; y: number }) {
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if (pos.x + 15 + this.carrier.clientWidth <= document.body.scrollWidth) {
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this.carrier.style.left = (pos.x + 15) + "px";
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} else {
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this.carrier.style.left = (document.body.scrollWidth - this.carrier.clientWidth - 5) + "px";
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}
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if (pos.y + this.carrier.clientHeight <= document.body.scrollHeight) {
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this.carrier.style.top = pos.y + "px";
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} else {
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this.carrier.style.top = (document.body.scrollHeight - this.carrier.clientHeight - 5) + "px";
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}
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}
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function toggleActive() {
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if (this.active) {
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this.active = false;
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this.carrier.style.opacity = "0";
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this.carrier.style.padding = "0";
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} else {
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this.active = true;
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this.carrier.style.opacity = "1";
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this.carrier.style.padding = SexyTooltip.carrierStyle.padding;
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}
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}
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function transitionTooltipSize(text: string) {
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const testDiv = h("div");
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testDiv.style.height = "auto";
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testDiv.style.width = SexyTooltip.defaultWidth + "px";
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testDiv.innerHTML = text;
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document.body.appendChild(testDiv);
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const calculatedHeight = testDiv.scrollHeight;
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testDiv.style.display = "inline";
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testDiv.style.width = "auto";
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document.body.removeChild(testDiv);
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const size = { height: calculatedHeight + "px", width: "350px" };
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this.carrier.style.height = size.height;
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this.carrier.style.width = text === "" ? "0" : size.width;
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this.textCarrier.innerHTML = text;
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}
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function getTooltipTextForHoveredElement(mousePos: { x: number; y: number }) {
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for (const elem of this.elementsWithTooltips) {
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const boundingRect = elem.getBoundingClientRect();
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const inYRange = mousePos.y >= boundingRect.top + window.pageYOffset - 1 &&
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mousePos.y <= boundingRect.bottom + window.pageYOffset + 1;
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const inXRange = mousePos.x >= boundingRect.left + window.pageXOffset - 1 &&
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mousePos.x <= boundingRect.right + window.pageXOffset + 1;
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if (inYRange && inXRange) {
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return elem.nextElementSibling?.innerText ?? "";
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}
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}
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return "";
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}
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return () => (
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<div ref={carrier}>
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<span ref={textCarrier} />
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</div>
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);
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},
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});
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