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tui: Don't call uv_write without output (#12146)

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Fixes #11653, #11990. Check for cursor visibility to toggle uv_write call.
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erw7 2020-04-20 21:50:44 +09:00 committed by GitHub
parent adec9fb444
commit 8745247cba
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1 changed files with 18 additions and 2 deletions
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20
src/nvim/tui/tui.c
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@ -1973,7 +1973,23 @@ static void flush_buf(UI *ui)
uv_buf_t *bufp = &bufs[0];
TUIData *data = ui->data;
if (data->bufpos <= 0 && data->busy == data->is_invisible) {
// The content of the output for each condition is shown in the following
// table. Therefore, if data->bufpos == 0 and N/A or invis + norm, there is
// no need to output it.
//
// | is_invisible | !is_invisible
// ------+-----------------+--------------+---------------
// busy | want_invisible | N/A | invis
// | !want_invisible | N/A | invis
// ------+-----------------+--------------+---------------
// !busy | want_invisible | N/A | invis
// | !want_invisible | norm | invis + norm
// ------+-----------------+--------------+---------------
//
if (data->bufpos <= 0
&& ((data->is_invisible && data->busy)
|| (data->is_invisible && !data->busy && data->want_invisible)
|| (!data->is_invisible && !data->busy && !data->want_invisible))) {
return;
}
@ -2000,8 +2016,8 @@ static void flush_buf(UI *ui)
bufp->base = data->norm;
bufp->len = UV_BUF_LEN(data->normlen);
bufp++;
data->is_invisible = false;
}
data->is_invisible = false;
}
uv_write(&req, STRUCT_CAST(uv_stream_t, &data->output_handle),