141 lines
4.4 KiB
HTML
141 lines
4.4 KiB
HTML
<!-- That file is not particularly elegant. This will need a refactor at some point. -->
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<style>
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content a.internal-link {
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border-color: #8b88e6;
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background-color: #efefff;
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}
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#tooltip-wrapper {
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background: white;
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padding: 1em;
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border: 1px solid #ddd;
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border-radius: 4px;
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overflow: hidden;
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position: absolute;
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width: 400px;
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height: 250px;
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font-size: 0.8em;
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box-shadow: 0 5px 10px rgba(0,0,0,0.1);
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opacity: 0;
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transition: opacity 100ms;
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}
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#tooltip-wrapper:after {
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content: "";
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position: absolute;
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z-index: 1;
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bottom: 0;
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left: 0;
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pointer-events: none;
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background-image: linear-gradient(to bottom, rgba(255,255,255, 0), rgba(255,255,255, 1) 90%);
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width: 100%;
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height: 75px;
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}
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</style>
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<div style="opacity: 0; display: none;" id='tooltip-wrapper'>
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<div id='tooltip-content'>
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</div>
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</div>
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<iframe style="display: none; height: 0; width: 0;" id='link-preview-iframe' src="">
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</iframe>
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<script>
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var opacityTimeout;
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var contentTimeout;
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var transitionDurationMs = 100;
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var iframe = document.getElementById('link-preview-iframe')
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var tooltipWrapper = document.getElementById('tooltip-wrapper')
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var tooltipContent = document.getElementById('tooltip-content')
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var linkHistories = {};
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function hideTooltip() {
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opacityTimeout = setTimeout(function() {
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tooltipWrapper.style.opacity = 0;
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contentTimeout = setTimeout(function() {
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tooltipContent.innerHTML = '';
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tooltipWrapper.style.display = 'none';
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}, transitionDurationMs + 1);
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}, transitionDurationMs)
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}
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function showTooltip(event) {
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var elem = event.target;
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var elem_props = elem.getClientRects()[elem.getClientRects().length - 1];
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var top = window.pageYOffset || document.documentElement.scrollTop
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if (event.target.host === window.location.host) {
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if (!linkHistories[event.target.href]) {
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iframe.src = event.target.href
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iframe.onload = function() {
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tooltipContentHtml = ''
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tooltipContentHtml += '<div style="font-weight: bold;">' + iframe.contentWindow.document.querySelector('h1').innerHTML + '</div>'
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tooltipContentHtml += iframe.contentWindow.document.querySelector('content').innerHTML
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tooltipContent.innerHTML = tooltipContentHtml
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linkHistories[event.target.href] = tooltipContentHtml
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tooltipWrapper.style.display = 'block';
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setTimeout(function() {
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tooltipWrapper.style.opacity = 1;
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}, 1)
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}
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} else {
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tooltipContent.innerHTML = linkHistories[event.target.href]
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tooltipWrapper.style.display = 'block';
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setTimeout(function() {
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tooltipWrapper.style.opacity = 1;
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}, 1)
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}
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tooltipWrapper.style.left = elem_props.left - (tooltipWrapper.offsetWidth / 2) + (elem_props.width / 2) + "px";
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if ((window.innerHeight - elem_props.top) < (tooltipWrapper.offsetHeight)) {
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tooltipWrapper.style.top = elem_props.top + top - tooltipWrapper.offsetHeight - 10 + "px";
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} else if ((window.innerHeight - elem_props.top) > (tooltipWrapper.offsetHeight)) {
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tooltipWrapper.style.top = elem_props.top + top + 35 + "px";
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}
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if ((elem_props.left + (elem_props.width / 2)) < (tooltipWrapper.offsetWidth / 2)) {
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tooltipWrapper.style.left = "10px";
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} else if ((document.body.clientWidth - elem_props.left - (elem_props.width / 2)) < (tooltipWrapper.offsetWidth / 2)) {
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tooltipWrapper.style.left = document.body.clientWidth - tooltipWrapper.offsetWidth - 20 + "px";
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}
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}
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}
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function setupListeners(linkElement) {
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linkElement.addEventListener('mouseleave', function(_event) {
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hideTooltip();
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});
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tooltipWrapper.addEventListener('mouseleave', function(_event) {
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hideTooltip();
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});
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linkElement.addEventListener('touchend', function(_event) {
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hideTooltip();
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});
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tooltipWrapper.addEventListener('touchend', function(_event) {
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hideTooltip();
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});
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linkElement.addEventListener('mouseenter', function(event) {
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clearTimeout(opacityTimeout);
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clearTimeout(contentTimeout);
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showTooltip(event);
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});
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tooltipWrapper.addEventListener('mouseenter', function(event) {
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clearTimeout(opacityTimeout);
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clearTimeout(contentTimeout);
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});
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}
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document.querySelectorAll('{{ include.wrapperQuerySelector }} a').forEach(setupListeners);
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</script>
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