29 lines
814 B
TypeScript
29 lines
814 B
TypeScript
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import throttle from "lodash.throttle";
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let tooltipDiv: HTMLDivElement | null = null;
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function showTooltipInner(msg: string, x: number, y: number): void {
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if (!tooltipDiv) {
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tooltipDiv = document.createElement("div");
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tooltipDiv.className = "graph-tooltip";
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document.body.appendChild(tooltipDiv);
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}
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tooltipDiv.innerHTML = msg;
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tooltipDiv.style.left = `${x - 50}px`;
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tooltipDiv.style.top = `${y - 50}px`;
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tooltipDiv.style.opacity = "1";
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}
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export const showTooltip = throttle(showTooltipInner, 16);
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export function hideTooltip(): void {
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showTooltip.cancel();
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if (tooltipDiv) {
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tooltipDiv.style.opacity = "0";
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}
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}
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