swayfx/sway/commands/input/xkb_switch_layout.c
Simon Ser 2bccb387d8 Add a new xkb_switch_layout command
This allows users to programatically change the active layout.
2019-06-09 15:20:14 -04:00

52 lines
1.5 KiB
C

#define _POSIX_C_SOURCE 200809L
#include "sway/config.h"
#include "sway/commands.h"
#include "sway/input/input-manager.h"
#include "log.h"
static void switch_layout(struct wlr_keyboard *kbd, xkb_layout_index_t idx) {
xkb_layout_index_t num_layouts = xkb_keymap_num_layouts(kbd->keymap);
if (idx >= num_layouts) {
return;
}
wlr_keyboard_notify_modifiers(kbd, kbd->modifiers.depressed,
kbd->modifiers.latched, kbd->modifiers.locked, idx);
}
struct cmd_results *input_cmd_xkb_switch_layout(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "xkb_switch_layout", EXPECTED_EQUAL_TO, 1))) {
return error;
}
struct input_config *ic = config->handler_context.input_config;
if (!ic) {
return cmd_results_new(CMD_FAILURE, "No input device defined.");
}
if (config->reading || !config->active) {
return cmd_results_new(CMD_DEFER, NULL);
}
const char *layout_str = argv[0];
char *end;
int layout = strtol(layout_str, &end, 10);
if (layout_str[0] == '\0' || end[0] != '\0' || layout < 0) {
return cmd_results_new(CMD_FAILURE, "Invalid layout index.");
}
struct sway_input_device *dev;
wl_list_for_each(dev, &server.input->devices, link) {
if (strcmp(ic->identifier, "*") != 0 &&
strcmp(ic->identifier, dev->identifier) != 0) {
continue;
}
if (dev->wlr_device->type != WLR_INPUT_DEVICE_KEYBOARD) {
continue;
}
switch_layout(dev->wlr_device->keyboard, layout);
}
return cmd_results_new(CMD_SUCCESS, NULL);
}