Merge pull request #123 from hqweay/link-preview
caching link content for link preview
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commit
18b003881c
@ -50,6 +50,8 @@
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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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@ -66,20 +68,30 @@
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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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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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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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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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@ -58,6 +58,8 @@ Notice in the "Notes mentioning this note" section that there is another note li
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If you're on a device with mouse support, try hovering your mouse on internal links to preview the notes: [[a note about cats]].
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Links that have been previewed will be cached to avoid redundant requests.
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### Images and other Markdown goodies
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Finally, because you have the full power of Markdown in this template, you can use regular Markdown syntax for various formatting options.
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