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Code Issues Releases Wiki Activity

* shorten_expanded: use ResizeObserver (DUH)

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* add HOOK_HEADLINES_RENDERED
This commit is contained in:
Andrew Dolgov
2021-03-11 22:55:14 +03:00
parent 6e0474a7c8
commit 146b1e0feb
3 changed files with 15 additions and 28 deletions
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39
plugins/shorten_expanded/init.js
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@@ -2,6 +2,13 @@
Plugins.Shorten_Expanded = {
threshold: 1.5, // of window height
observer: new ResizeObserver((entries) => {
entries.forEach((entry) => {
const row = entry.target;
Plugins.Shorten_Expanded.shorten_if_needed(row);
});
}),
shorten_if_needed: function(row) {
const content = row.querySelector(".content");
@@ -9,7 +16,9 @@ Plugins.Shorten_Expanded = {
console.log('shorten_expanded', row.id, content.offsetHeight, 'vs', this.threshold * window.innerHeight);
if (content && content_inner && content.offsetHeight >= this.threshold * window.innerHeight) {
if (content && content_inner && !row.hasAttribute('data-already-shortened') && content.offsetHeight >= this.threshold * window.innerHeight) {
row.setAttribute('data-already-shortened', true);
const attachments = row.querySelector(".attachments-inline"); // optional
@@ -37,33 +46,7 @@ Plugins.Shorten_Expanded = {
if (this.shorten_if_needed(row))
return;
const promises = [];
[...row.querySelectorAll("img, video")].forEach((img) => {
const promise = new Promise((resolve, reject) => {
// lazy load breaks our calculations
img.removeAttribute('loading');
img.onload = () => resolve(img);
img.onloadeddata = () => resolve(img);
img.error = () => reject(new Error("unable to load video"));
img.onerror = () => reject(new Error("unable to load image"));
});
const timeout = new Promise((resolve, reject) => {
const id = setTimeout(() => {
clearTimeout(id);
reject(new Error("timed out"));
}, 2000)
})
promises.push(Promise.race([promise, timeout]));
});
Promise.allSettled(promises).then(() => {
this.shorten_if_needed(row);
});
this.observer.observe(row);
},
expand: function(id) {
const row = App.byId(id);