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input-method-v2: set no keymap format if no keymap is set

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Also don't copy the keymap each time it gets sent to a client
This commit is contained in:
llyyr 2024-09-08 23:20:30 +05:30
parent 04525e6f82
commit bf0cac12a3
1 changed files with 25 additions and 31 deletions
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56
types/wlr_input_method_v2.c
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@ -1,4 +1,5 @@
#include <assert.h>
#include <fcntl.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
@ -306,34 +307,30 @@ void wlr_input_method_keyboard_grab_v2_send_modifiers(
modifiers->locked, modifiers->group);
}
static bool keyboard_grab_send_keymap(
static void keyboard_grab_send_keymap(
struct wlr_input_method_keyboard_grab_v2 *keyboard_grab,
struct wlr_keyboard *keyboard) {
int keymap_fd = allocate_shm_file(keyboard->keymap_size);
if (keymap_fd < 0) {
wlr_log(WLR_ERROR, "creating a keymap file for %zu bytes failed",
keyboard->keymap_size);
return false;
enum wl_keyboard_keymap_format format;
int fd, devnull = -1;
if (keyboard->keymap != NULL) {
format = WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1;
fd = keyboard->keymap_fd;
} else {
format = WL_KEYBOARD_KEYMAP_FORMAT_NO_KEYMAP;
devnull = open("/dev/null", O_RDONLY | O_CLOEXEC);
if (devnull < 0) {
wlr_log_errno(WLR_ERROR, "Failed to open /dev/null");
return;
}
fd = devnull;
}
void *ptr = mmap(NULL, keyboard->keymap_size, PROT_READ | PROT_WRITE,
MAP_SHARED, keymap_fd, 0);
if (ptr == MAP_FAILED) {
wlr_log(WLR_ERROR, "failed to mmap() %zu bytes",
keyboard->keymap_size);
close(keymap_fd);
return false;
}
memcpy(ptr, keyboard->keymap_string, keyboard->keymap_size);
munmap(ptr, keyboard->keymap_size);
zwp_input_method_keyboard_grab_v2_send_keymap(keyboard_grab->resource,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, keymap_fd,
keyboard->keymap_size);
format, fd, keyboard->keymap_size);
close(keymap_fd);
return true;
if (devnull >= 0) {
close(devnull);
}
}
static void keyboard_grab_send_repeat_info(
@ -379,15 +376,12 @@ void wlr_input_method_keyboard_grab_v2_set_keyboard(
if (keyboard) {
if (keyboard_grab->keyboard == NULL ||
strcmp(keyboard_grab->keyboard->keymap_string,
keyboard->keymap_string) != 0) {
// send keymap only if it is changed, or if input method is not
// aware that it did not change and blindly send it back with
// virtual keyboard, it may cause an infinite recursion.
if (!keyboard_grab_send_keymap(keyboard_grab, keyboard)) {
wlr_log(WLR_ERROR, "Failed to send keymap for input-method keyboard grab");
return;
}
!wlr_keyboard_keymaps_match(keyboard_grab->keyboard->keymap,
keyboard->keymap)) {
// Only send keymap if it changed, otherwise if the input-method
// client sent back the same keymap with virtual-keyboard, it would
// result in an infinite loop of keymap updates.
keyboard_grab_send_keymap(keyboard_grab, keyboard);
}
keyboard_grab_send_repeat_info(keyboard_grab, keyboard);
keyboard_grab->keyboard_keymap.notify = handle_keyboard_keymap;