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Storyline tooltips from alt text
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Storyline tooltips from alt text
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class Tooltip {
constructor() {
this.tooltip = null;
this.showTimeout = null;
this.hideTimeout = null;
this.currentTarget = null;
this.touchStartX = 0;
this.touchStartY = 0;
this.init();
}
init() {
this.createStyles();
this.createTooltipElement();
this.attachEventListeners();
}
createStyles() {
const style = document.createElement('style');
style.textContent = `
.custom-tooltip {
position: fixed;
background-color: rgba(33, 33, 33, 0.95);
color: #fff;
padding: 10px 15px;
border-radius: 6px;
font-size: 14px;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
pointer-events: none;
opacity: 0;
transform: translateY(5px);
transition: opacity 0.2s ease, transform 0.2s ease;
z-index: 1000;
max-width: 250px;
word-wrap: break-word;
line-height: 1.4;
}
.custom-tooltip.visible {
opacity: 1;
transform: translateY(0);
}
.custom-tooltip::after {
content: '';
position: absolute;
border-style: solid;
border-width: 6px;
}
.custom-tooltip.top::after {
border-color: rgba(33, 33, 33, 0.95) transparent transparent transparent;
top: 100%;
left: 50%;
margin-left: -6px;
}
.custom-tooltip.bottom::after {
border-color: transparent transparent rgba(33, 33, 33, 0.95) transparent;
bottom: 100%;
left: 50%;
margin-left: -6px;
}
`;
document.head.appendChild(style);
}
createTooltipElement() {
this.tooltip = document.createElement('div');
this.tooltip.className = 'custom-tooltip';
document.body.appendChild(this.tooltip);
}
attachEventListeners() {
// Mouse events
document.body.addEventListener('mouseover', this.handleMouseOver.bind(this));
document.body.addEventListener('mouseout', this.handleMouseOut.bind(this));
// Focus events
document.body.addEventListener('focusin', this.handleFocusIn.bind(this));
document.body.addEventListener('focusout', this.handleFocusOut.bind(this));
// Touch events
document.body.addEventListener('touchstart', this.handleTouchStart.bind(this));
document.body.addEventListener('touchend', this.handleTouchEnd.bind(this));
}
handleMouseOver(event) {
const target = event.target.closest('[data-acc-text]');
if (!target) return;
this.currentTarget = target;
this.showTimeout = setTimeout(() => this.showTooltip(target), 200);
}
handleMouseOut() {
clearTimeout(this.showTimeout);
this.hideTooltip();
}
handleFocusIn(event) {
const target = event.target.closest('[data-acc-text]');
if (!target) return;
this.currentTarget = target;
this.showTooltip(target);
}
handleFocusOut() {
this.hideTooltip();
}
handleTouchStart(event) {
const target = event.target.closest('[data-acc-text]');
if (!target) return;
this.currentTarget = target;
this.touchStartX = event.touches[0].clientX;
this.touchStartY = event.touches[0].clientY;
this.showTimeout = setTimeout(() => this.showTooltip(target), 200);
}
handleTouchEnd(event) {
if (!this.currentTarget) return;
const touchEndX = event.changedTouches[0].clientX;
const touchEndY = event.changedTouches[0].clientY;
const distance = Math.sqrt(
Math.pow(touchEndX - this.touchStartX, 2) +
Math.pow(touchEndY - this.touchStartY, 2)
);
if (distance < 10) { // Threshold for considering it a tap, not a scroll
event.preventDefault(); // Prevent default click behavior
clearTimeout(this.showTimeout);
this.toggleTooltip(this.currentTarget);
} else {
this.hideTooltip();
}
}
toggleTooltip(target) {
if (this.tooltip.classList.contains('visible')) {
this.hideTooltip();
} else {
this.showTooltip(target);
}
}
showTooltip(target) {
const tooltipText = target.getAttribute('data-acc-text');
if (!tooltipText) return;
this.tooltip.textContent = tooltipText;
this.positionTooltip(target);
this.tooltip.classList.add('visible');
}
hideTooltip() {
clearTimeout(this.hideTimeout);
this.hideTimeout = setTimeout(() => {
this.tooltip.classList.remove('visible');
this.currentTarget = null;
}, 200);
}
positionTooltip(target) {
const rect = target.getBoundingClientRect();
const tooltipRect = this.tooltip.getBoundingClientRect();
let top, left;
const spacing = 10;
// Attempt to position the tooltip below the target
top = rect.bottom + spacing;
left = rect.left + (rect.width - tooltipRect.width) / 2;
// Check if tooltip goes off-screen to the right
if (left + tooltipRect.width > window.innerWidth) {
left = window.innerWidth - tooltipRect.width - spacing;
}
// Check if tooltip goes off-screen to the left
if (left < spacing) {
left = spacing;
}
// If tooltip goes off-screen at the bottom, position it above the target
if (top + tooltipRect.height > window.innerHeight) {
top = rect.top - tooltipRect.height - spacing;
this.tooltip.classList.add('top');
this.tooltip.classList.remove('bottom');
} else {
this.tooltip.classList.add('bottom');
this.tooltip.classList.remove('top');
}
this.tooltip.style.top = `${top}px`;
this.tooltip.style.left = `${left}px`;
}
}
// Initialize the tooltip
new Tooltip();