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Identified and fixed an obvious UI-path delay in message rendering: when a new line is appended and the user is already at the bottom of the channel buffer (scrollbar_down), the code now renders immediately instead of always waiting for an idle callback. This removes the subtle “sent but appears a moment later” effect in large-scrollback channels.

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Preserved the previous idle-batched behavior for users who are not at the bottom (scrolling history), so performance-friendly deferred redraws still apply in that case.
This commit is contained in:
deepend
2026-02-17 14:49:15 -07:00
parent 97cbe98b3d
commit ae50735311
1 changed files with 10 additions and 5 deletions
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15
src/fe-gtk/xtext.c
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@@ -5426,11 +5426,16 @@ gtk_xtext_append_entry (xtext_buffer *buf, textentry * ent, time_t stamp)
g_source_remove (buf->xtext->io_tag); g_source_remove (buf->xtext->io_tag);
buf->xtext->io_tag = 0; buf->xtext->io_tag = 0;
} }
/* Render new lines as soon as the UI is idle to avoid a noticeable /* When at the bottom of the buffer, render immediately so long
* delay between pressing Enter and seeing your own message. */ * scrollback doesn't delay newly-sent messages appearing.
buf->xtext->add_io_tag = g_idle_add ((GSourceFunc) * Otherwise, keep idle batching to avoid extra redraws while
gtk_xtext_render_page_timeout, * scrolling around old content. */
buf->xtext); if (buf->scrollbar_down)
gtk_xtext_render_page_timeout (buf->xtext);
else
buf->xtext->add_io_tag = g_idle_add ((GSourceFunc)
gtk_xtext_render_page_timeout,
buf->xtext);
} }
} }
if (buf->scrollbar_down) if (buf->scrollbar_down)