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feat(ui): "append" parameter for "msg_show" UI events

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Problem:  Consecutive "msg_show" events stemming from an `:echon`
          command are supposed to be appended without a newline, this
          information is not encoded in the "msg_show" event.
Solution: Add an "append" parameter to the "msg_show" event that is set
          to true to indicate the message should not start on a new line.
Considered alternative: Emit a newline for the common case instead at the
start of a new message. That way UIs can more closely follow the logic
as it is implemented for the message grid currently. This would be a
breaking change. The "append" parameter seems OK.
This commit is contained in:
Luuk van Baal
2025-05-23 13:03:28 +02:00
committed by luukvbaal
parent 7c2b4a0eaf
commit abb40ecedd
9 changed files with 44 additions and 62 deletions
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src/nvim/message.h
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@@ -33,6 +33,8 @@ extern MessageHistoryEntry *msg_hist_last;
EXTERN bool msg_ext_need_clear INIT( = false);
// Set to true to force grouping a set of message chunks into a single `cmdline_show` event.
EXTERN bool msg_ext_skip_flush INIT( = false);
// Set to true when message should be appended to previous message line.
EXTERN bool msg_ext_append INIT( = false);
/// allocated grid for messages. Used unless ext_messages is active.
/// See also the description at msg_scroll_flush()