Commit 2417b115 authored by Maxime Buquet's avatar Maxime Buquet

mam: Only fetched mam when the buffer is running low in messages

Signed-off-by: Maxime Buquet's avatarMaxime “pep” Buquet <pep@bouah.net>
parent 4137d816
Pipeline #2404 passed with stages
in 2 minutes and 39 seconds
......@@ -196,9 +196,22 @@ async def on_tab_open(tab) -> None:
async def on_scroll_up(tab) -> None:
amount = tab.text_win.height
tw = tab.text_win
# If position in the tab is <= two pages, then fetch MAM, so that we keep
# some prefetched margin. A first page should also be prefetched on join
# if not already available.
total, pos, height = len(tw.built_lines), tw.pos, tw.height
rest = (total - pos) // height
if rest > 1:
return None
try:
await fetch_history(tab, amount=amount)
# XXX: Do we want to fetch a possibly variable number of messages?
# (InfoTab changes height depending on the type of messages, see
# `information_buffer_popup_on`).
await fetch_history(tab, amount=height)
except NoMAMSupportException:
tab.core.information('MAM not supported for %r' % tab.jid, 'Info')
return None
......
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