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caching link content for link preview

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This commit is contained in:
hqweay 2022-06-27 21:33:31 +08:00
parent 8518ad014b
commit f872e0dc9b
2 changed files with 20 additions and 6 deletions
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24
_includes/link-previews.html
View File

@ -50,6 +50,8 @@
var tooltipWrapper = document.getElementById('tooltip-wrapper')
var tooltipContent = document.getElementById('tooltip-content')
var linkHistories = {};
function hideTooltip() {
opacityTimeout = setTimeout(function() {
tooltipWrapper.style.opacity = 0;
@ -66,20 +68,30 @@
var top = window.pageYOffset || document.documentElement.scrollTop
if (event.target.host === window.location.host) {
iframe.src = event.target.href
iframe.onload = function() {
tooltipContentHtml = ''
tooltipContentHtml += '<div style="font-weight: bold;">' + iframe.contentWindow.document.querySelector('h1').innerHTML + '</div>'
tooltipContentHtml += iframe.contentWindow.document.querySelector('content').innerHTML
if (!linkHistories[event.target.href]) {
iframe.src = event.target.href
iframe.onload = function() {
tooltipContentHtml = ''
tooltipContentHtml += '<div style="font-weight: bold;">' + iframe.contentWindow.document.querySelector('h1').innerHTML + '</div>'
tooltipContentHtml += iframe.contentWindow.document.querySelector('content').innerHTML
tooltipContent.innerHTML = tooltipContentHtml
tooltipContent.innerHTML = tooltipContentHtml
linkHistories[event.target.href] = tooltipContentHtml
tooltipWrapper.style.display = 'block';
setTimeout(function() {
tooltipWrapper.style.opacity = 1;
}, 1)
}
} else {
tooltipContent.innerHTML = linkHistories[event.target.href]
tooltipWrapper.style.display = 'block';
setTimeout(function() {
tooltipWrapper.style.opacity = 1;
}, 1)
}
tooltipWrapper.style.left = elem_props.left - (tooltipWrapper.offsetWidth / 2) + (elem_props.width / 2) + "px";
if ((window.innerHeight - elem_props.top) < (tooltipWrapper.offsetHeight)) {
tooltipWrapper.style.top = elem_props.top + top - tooltipWrapper.offsetHeight - 10 + "px";

2
_notes/your-first-note.md
View File

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