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Speed up filtering by hiding #video_cards first. 

On large channels, filter_video_cards is painfully slow because of all
the forced reflows. I'm currently trying to find a better solution.
In the meantime, hiding the containing div does prevent those reflows
until the end, but itself is also quite slow.
master
voussoir 2020-08-27 16:53:51 -07:00
parent 412d324352
commit 7b197c867b
1 changed files with 4 additions and 5 deletions
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9
frontends/ycdl_flask/templates/channel.html
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@ -342,17 +342,15 @@ function filter_video_cards(search_term)
*/
var count = 0;
video_cards = document.getElementById("video_cards");
cards = video_cards.getElementsByClassName("video_card");
video_cards.classList.add("hidden");
search_term = search_term.toLocaleLowerCase();
var download_filter_class = "video_card_" + DOWNLOAD_FILTER;
for (var index = 0; index < cards.length; index += 1)
Array.from(video_cards.getElementsByClassName("video_card")).forEach(function(video_card)
{
var video_card = cards[index];
var title = video_card.getElementsByClassName("video_title")[0].innerText.toLocaleLowerCase();
if (DOWNLOAD_FILTER && !video_card.classList.contains(download_filter_class))
{
video_cards.removeChild(video_card);
index -= 1;
}
else if (search_term !== "" && title.indexOf(search_term) == -1)
{
@ -363,7 +361,8 @@ function filter_video_cards(search_term)
video_card.classList.remove("hidden");
count += 1;
}
}
});
video_cards.classList.remove("hidden");
document.getElementById("search_filter_count").innerText = count;
}