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fix(input): do no reinterpret mouse keys with ALT modifiers

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Remove check for MOD_MASK_META as it is for <T- which never appears in TUI.
Make small changes to docs.
This commit is contained in:
zeertzjq
2022-06-17 07:28:16 +08:00
parent 46e3e1c728
commit eb77122823
8 changed files with 57 additions and 23 deletions
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17
src/nvim/getchar.c
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@@ -30,6 +30,7 @@
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/mouse.h"
#include "nvim/move.h"
#include "nvim/normal.h"
#include "nvim/ops.h"
@@ -1584,16 +1585,18 @@ int vgetc(void)
vgetc_char = c;
}
// If mappings are enabled (i.e., not Ctrl-v) and the user directly typed
// something with a meta- or alt- modifier that was not mapped, interpret
// <M-x> as <Esc>x rather than as an unbound meta keypress. #8213
// In Terminal mode, however, this is not desirable. #16220
if (!no_mapping && KeyTyped && !(State & MODE_TERMINAL)
&& (mod_mask == MOD_MASK_ALT || mod_mask == MOD_MASK_META)) {
// If mappings are enabled (i.e., not i_CTRL-V) and the user directly typed something with
// MOD_MASK_ALT (<M-/<A- modifier) that was not mapped, interpret <M-x> as <Esc>x rather
// than as an unbound <M-x> keypress. #8213
// In Terminal mode, however, this is not desirable. #16202 #16220
// Also do not do this for mouse keys, as terminals encode mouse events as CSI sequences, and
// MOD_MASK_ALT has a meaning even for unmapped mouse keys.
if (!no_mapping && KeyTyped && mod_mask == MOD_MASK_ALT && !(State & MODE_TERMINAL)
&& !is_mouse_key(c)) {
mod_mask = 0;
int len = ins_char_typebuf(c, 0);
(void)ins_char_typebuf(ESC, 0);
ungetchars(len + 3); // The ALT/META modifier takes three more bytes
ungetchars(len + 3); // K_SPECIAL KS_MODIFIER MOD_MASK_ALT takes 3 more bytes
continue;
}