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imwayland: Clamp the surrounding string end correctly

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In the paths where len > MAX_LEN and cursor/anchor are separated by
at least MAX_LEN from text edges, we were clamping the right end of
the surrounding string at MAX_LEN. Oops.

This end anchor may go as far as the string length, although just
up to len - MAX_LEN in real terms (due to the condition above that
caches cursor/anchor positions being near enough the text end).

Closes: https://gitlab.gnome.org/GNOME/gtk/-/issues/2565
This commit is contained in:
Carlos Garnacho 2020-04-03 12:44:37 +02:00
parent d5264673cb
commit d7fb15c822
1 changed files with 1 additions and 1 deletions
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2
modules/input/imwayland.c
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@ -322,7 +322,7 @@ notify_surrounding_text (GtkIMContextWayland *context)
mid = MIN (context->surrounding.cursor_idx,
context->surrounding.anchor_idx) + (cursor_len / 2);
a = MAX (0, mid - (MAX_LEN / 2));
b = MIN (MAX_LEN, mid + (MAX_LEN / 2));
b = MIN (len, mid + (MAX_LEN / 2));
start = &context->surrounding.text[a];
end = &context->surrounding.text[b];