swayfx/sway/config/input.c

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#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <limits.h>
#include <float.h>
#include "sway/config.h"
#include "sway/input/keyboard.h"
#include "log.h"
struct input_config *new_input_config(const char* identifier) {
struct input_config *input = calloc(1, sizeof(struct input_config));
if (!input) {
sway_log(SWAY_DEBUG, "Unable to allocate input config");
return NULL;
}
sway_log(SWAY_DEBUG, "new_input_config(%s)", identifier);
if (!(input->identifier = strdup(identifier))) {
free(input);
sway_log(SWAY_DEBUG, "Unable to allocate input config");
return NULL;
}
input->input_type = NULL;
input->tap = INT_MIN;
input->tap_button_map = INT_MIN;
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input->drag = INT_MIN;
input->drag_lock = INT_MIN;
input->dwt = INT_MIN;
input->send_events = INT_MIN;
input->click_method = INT_MIN;
input->middle_emulation = INT_MIN;
input->natural_scroll = INT_MIN;
input->accel_profile = INT_MIN;
input->pointer_accel = FLT_MIN;
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input->scroll_factor = FLT_MIN;
input->scroll_button = INT_MIN;
input->scroll_method = INT_MIN;
input->left_handed = INT_MIN;
input->repeat_delay = INT_MIN;
input->repeat_rate = INT_MIN;
input->xkb_numlock = INT_MIN;
input->xkb_capslock = INT_MIN;
return input;
}
void merge_input_config(struct input_config *dst, struct input_config *src) {
if (src->accel_profile != INT_MIN) {
dst->accel_profile = src->accel_profile;
}
if (src->click_method != INT_MIN) {
dst->click_method = src->click_method;
}
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if (src->drag != INT_MIN) {
dst->drag = src->drag;
}
if (src->drag_lock != INT_MIN) {
dst->drag_lock = src->drag_lock;
}
if (src->dwt != INT_MIN) {
dst->dwt = src->dwt;
}
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if (src->left_handed != INT_MIN) {
dst->left_handed = src->left_handed;
}
if (src->middle_emulation != INT_MIN) {
dst->middle_emulation = src->middle_emulation;
}
if (src->natural_scroll != INT_MIN) {
dst->natural_scroll = src->natural_scroll;
}
if (src->pointer_accel != FLT_MIN) {
dst->pointer_accel = src->pointer_accel;
}
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if (src->scroll_factor != FLT_MIN) {
dst->scroll_factor = src->scroll_factor;
}
if (src->repeat_delay != INT_MIN) {
dst->repeat_delay = src->repeat_delay;
}
if (src->repeat_rate != INT_MIN) {
dst->repeat_rate = src->repeat_rate;
}
if (src->scroll_method != INT_MIN) {
dst->scroll_method = src->scroll_method;
}
if (src->scroll_button != INT_MIN) {
dst->scroll_button = src->scroll_button;
}
if (src->send_events != INT_MIN) {
dst->send_events = src->send_events;
}
if (src->tap != INT_MIN) {
dst->tap = src->tap;
}
if (src->tap_button_map != INT_MIN) {
dst->tap_button_map = src->tap_button_map;
}
if (src->xkb_layout) {
free(dst->xkb_layout);
dst->xkb_layout = strdup(src->xkb_layout);
}
if (src->xkb_model) {
free(dst->xkb_model);
dst->xkb_model = strdup(src->xkb_model);
}
if (src->xkb_options) {
free(dst->xkb_options);
dst->xkb_options = strdup(src->xkb_options);
}
if (src->xkb_rules) {
free(dst->xkb_rules);
dst->xkb_rules = strdup(src->xkb_rules);
}
if (src->xkb_variant) {
free(dst->xkb_variant);
dst->xkb_variant = strdup(src->xkb_variant);
}
if (src->xkb_numlock != INT_MIN) {
dst->xkb_numlock = src->xkb_numlock;
}
if (src->xkb_capslock != INT_MIN) {
dst->xkb_capslock = src->xkb_capslock;
}
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if (src->mapped_from_region) {
free(dst->mapped_from_region);
dst->mapped_from_region =
malloc(sizeof(struct input_config_mapped_from_region));
memcpy(dst->mapped_from_region, src->mapped_from_region,
sizeof(struct input_config_mapped_from_region));
}
if (src->mapped_to_output) {
free(dst->mapped_to_output);
dst->mapped_to_output = strdup(src->mapped_to_output);
}
}
static bool validate_xkb_merge(struct input_config *dest,
struct input_config *src, char **xkb_error) {
struct input_config *temp = new_input_config("temp");
if (dest) {
merge_input_config(temp, dest);
}
merge_input_config(temp, src);
struct xkb_keymap *keymap = sway_keyboard_compile_keymap(temp, xkb_error);
free_input_config(temp);
if (!keymap) {
return false;
}
xkb_keymap_unref(keymap);
return true;
}
static bool validate_wildcard_on_all(struct input_config *wildcard,
char **error) {
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for (int i = 0; i < config->input_configs->length; i++) {
struct input_config *ic = config->input_configs->items[i];
if (strcmp(wildcard->identifier, ic->identifier) != 0) {
sway_log(SWAY_DEBUG, "Validating xkb merge of * on %s",
ic->identifier);
if (!validate_xkb_merge(ic, wildcard, error)) {
return false;
}
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}
}
for (int i = 0; i < config->input_type_configs->length; i++) {
struct input_config *ic = config->input_type_configs->items[i];
sway_log(SWAY_DEBUG, "Validating xkb merge of * config on %s",
ic->identifier);
if (!validate_xkb_merge(ic, wildcard, error)) {
return false;
}
}
return true;
}
static void merge_wildcard_on_all(struct input_config *wildcard) {
for (int i = 0; i < config->input_configs->length; i++) {
struct input_config *ic = config->input_configs->items[i];
if (strcmp(wildcard->identifier, ic->identifier) != 0) {
sway_log(SWAY_DEBUG, "Merging input * config on %s", ic->identifier);
merge_input_config(ic, wildcard);
}
}
for (int i = 0; i < config->input_type_configs->length; i++) {
struct input_config *ic = config->input_type_configs->items[i];
sway_log(SWAY_DEBUG, "Merging input * config on %s", ic->identifier);
merge_input_config(ic, wildcard);
}
}
static bool validate_type_on_existing(struct input_config *type_wildcard,
char **error) {
for (int i = 0; i < config->input_configs->length; i++) {
struct input_config *ic = config->input_configs->items[i];
if (ic->input_type == NULL) {
continue;
}
if (strcmp(ic->input_type, type_wildcard->identifier + 5) == 0) {
sway_log(SWAY_DEBUG, "Validating merge of %s on %s",
type_wildcard->identifier, ic->identifier);
if (!validate_xkb_merge(ic, type_wildcard, error)) {
return false;
}
}
}
return true;
}
static void merge_type_on_existing(struct input_config *type_wildcard) {
for (int i = 0; i < config->input_configs->length; i++) {
struct input_config *ic = config->input_configs->items[i];
if (ic->input_type == NULL) {
continue;
}
if (strcmp(ic->input_type, type_wildcard->identifier + 5) == 0) {
sway_log(SWAY_DEBUG, "Merging %s top of %s",
type_wildcard->identifier,
ic->identifier);
merge_input_config(ic, type_wildcard);
}
}
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}
struct input_config *store_input_config(struct input_config *ic,
char **error) {
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bool wildcard = strcmp(ic->identifier, "*") == 0;
if (wildcard && error && !validate_wildcard_on_all(ic, error)) {
return NULL;
}
bool type = strncmp(ic->identifier, "type:", strlen("type:")) == 0;
if (type && error && !validate_type_on_existing(ic, error)) {
return NULL;
}
list_t *config_list = type ? config->input_type_configs
: config->input_configs;
struct input_config *current = NULL;
bool new_current = false;
int i = list_seq_find(config_list, input_identifier_cmp, ic->identifier);
if (i >= 0) {
current = config_list->items[i];
}
i = list_seq_find(config->input_configs, input_identifier_cmp, "*");
if (!current && i >= 0) {
current = new_input_config(ic->identifier);
merge_input_config(current, config->input_configs->items[i]);
new_current = true;
}
if (error && !validate_xkb_merge(current, ic, error)) {
if (new_current) {
free_input_config(current);
}
return NULL;
}
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if (wildcard) {
merge_wildcard_on_all(ic);
}
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if (type) {
merge_type_on_existing(ic);
}
if (current) {
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merge_input_config(current, ic);
free_input_config(ic);
ic = current;
}
if (!current || new_current) {
list_add(config_list, ic);
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}
sway_log(SWAY_DEBUG, "Config stored for input %s", ic->identifier);
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return ic;
}
void input_config_fill_rule_names(struct input_config *ic,
struct xkb_rule_names *rules) {
rules->layout = ic->xkb_layout;
rules->model = ic->xkb_model;
rules->options = ic->xkb_options;
rules->rules = ic->xkb_rules;
rules->variant = ic->xkb_variant;
}
void free_input_config(struct input_config *ic) {
if (!ic) {
return;
}
free(ic->identifier);
free(ic->xkb_layout);
free(ic->xkb_model);
free(ic->xkb_options);
free(ic->xkb_rules);
free(ic->xkb_variant);
free(ic->mapped_from_region);
free(ic->mapped_to_output);
free(ic);
}
int input_identifier_cmp(const void *item, const void *data) {
const struct input_config *ic = item;
const char *identifier = data;
return strcmp(ic->identifier, identifier);
}