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video Downloads page: stop polling when off-page (incl. music side); 2s cadence

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The active-downloads poll kept running in the background — the page-change event that
stops it only fires for video-side navigations, not when switching to the music side,
so /api/video/downloads/active was being hit forever. poll() now bails (and clears the
timer) whenever the Downloads page isn't on screen (data-side!=video or the subpage is
hidden). Also matched the music page's 2s active cadence (6s idle). Still HTTP polling,
same as the music downloads page (which polls /api/downloads/all every 2s — the app's
SocketIO is for other realtime, not the downloads list).
This commit is contained in:
BoulderBadgeDad 2026-06-19 17:28:45 -07:00
parent 3af3a1cd24
commit 937f3094c6
1 changed files with 11 additions and 2 deletions
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13
webui/static/video/video-downloads-page.js
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@ -189,8 +189,17 @@
function anyActive() { return !!document.querySelector('.adl-row.adl-row-active, .adl-row.adl-row-queued'); }
function poll() { getJSON(URL_ACTIVE).then(function (d) { if (d) render(d.downloads || []); schedule(); }); }
function schedule() { if (_timer) clearTimeout(_timer); _timer = setTimeout(poll, anyActive() ? 1500 : 6000); }
// Only poll while the Downloads page is actually on screen — not in the background
// and not after switching to the music side (where the page-change event never fires).
function _onPage() {
return document.body.getAttribute('data-side') === 'video' &&
!!document.querySelector('[data-video-subpage="video-downloads"]:not([hidden])');
}
function poll() {
if (!_onPage()) { stop(); return; }
getJSON(URL_ACTIVE).then(function (d) { if (d) render(d.downloads || []); schedule(); });
}
function schedule() { if (_timer) clearTimeout(_timer); _timer = setTimeout(poll, anyActive() ? 2000 : 6000); }
function start() { wire(); if (_timer) clearTimeout(_timer); poll(); }
function stop() { if (_timer) { clearTimeout(_timer); _timer = null; } }