sway-patched-tray-menu/sway/commands/input.c
Brian Ashworth be2d2a299a commands/input: perform basic keymap validation
Before the delta input config is stored, this attempts to compile a
keymap with it. If the keymap fails to compile, then the first line of
the xkbcommon log entry will be included with a `CMD_FAILURE`, the
entire xkbcommon log entry will be included in the sway error log, and
the delta will not be stored.

This only handles basic issues such as a layouts not existing. This
will NOT catch more complex issues such as when a variant does
exist, but not for the given layout (ex: `azerty` is a valid variant,
but the `us` layout does not have a `azerty` variant).
2019-06-09 20:13:22 +03:00

116 lines
3.4 KiB
C

#include <string.h>
#include <strings.h>
#include "sway/commands.h"
#include "sway/input/input-manager.h"
#include "sway/input/keyboard.h"
#include "log.h"
#include "stringop.h"
// must be in order for the bsearch
static struct cmd_handler input_handlers[] = {
{ "accel_profile", input_cmd_accel_profile },
{ "click_method", input_cmd_click_method },
{ "drag", input_cmd_drag },
{ "drag_lock", input_cmd_drag_lock },
{ "dwt", input_cmd_dwt },
{ "events", input_cmd_events },
{ "left_handed", input_cmd_left_handed },
{ "map_from_region", input_cmd_map_from_region },
{ "map_to_output", input_cmd_map_to_output },
{ "middle_emulation", input_cmd_middle_emulation },
{ "natural_scroll", input_cmd_natural_scroll },
{ "pointer_accel", input_cmd_pointer_accel },
{ "repeat_delay", input_cmd_repeat_delay },
{ "repeat_rate", input_cmd_repeat_rate },
{ "scroll_button", input_cmd_scroll_button },
{ "scroll_factor", input_cmd_scroll_factor },
{ "scroll_method", input_cmd_scroll_method },
{ "tap", input_cmd_tap },
{ "tap_button_map", input_cmd_tap_button_map },
{ "xkb_layout", input_cmd_xkb_layout },
{ "xkb_model", input_cmd_xkb_model },
{ "xkb_options", input_cmd_xkb_options },
{ "xkb_rules", input_cmd_xkb_rules },
{ "xkb_variant", input_cmd_xkb_variant },
};
// must be in order for the bsearch
static struct cmd_handler input_config_handlers[] = {
{ "xkb_capslock", input_cmd_xkb_capslock },
{ "xkb_numlock", input_cmd_xkb_numlock },
};
/**
* Re-translate keysyms if a change in the input config could affect them.
*/
static void retranslate_keysyms(struct input_config *input_config) {
for (int i = 0; i < config->input_configs->length; ++i) {
struct input_config *ic = config->input_configs->items[i];
if (ic->xkb_layout) {
// this is the first config with xkb_layout
if (ic->identifier == input_config->identifier) {
translate_keysyms(ic);
}
return;
}
}
}
struct cmd_results *cmd_input(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "input", EXPECTED_AT_LEAST, 2))) {
return error;
}
sway_log(SWAY_DEBUG, "entering input block: %s", argv[0]);
config->handler_context.input_config = new_input_config(argv[0]);
if (!config->handler_context.input_config) {
return cmd_results_new(CMD_FAILURE, "Couldn't allocate config");
}
struct cmd_results *res;
if (find_handler(argv[1], input_config_handlers,
sizeof(input_config_handlers))) {
if (config->reading) {
res = config_subcommand(argv + 1, argc - 1,
input_config_handlers, sizeof(input_config_handlers));
} else {
res = cmd_results_new(CMD_FAILURE,
"Can only be used in config file.");
}
} else {
res = config_subcommand(argv + 1, argc - 1,
input_handlers, sizeof(input_handlers));
}
if (!res || res->status == CMD_SUCCESS) {
char *error = NULL;
struct xkb_keymap *keymap = sway_keyboard_compile_keymap(
config->handler_context.input_config, &error);
if (!keymap) {
if (res) {
free_cmd_results(res);
}
res = cmd_results_new(CMD_FAILURE, "Failed to compile keymap: %s",
error ? error : "(details unavailable)");
free(error);
return res;
}
xkb_keymap_unref(keymap);
struct input_config *ic =
store_input_config(config->handler_context.input_config);
input_manager_apply_input_config(ic);
retranslate_keysyms(ic);
} else {
free_input_config(config->handler_context.input_config);
}
config->handler_context.input_config = NULL;
return res;
}