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Rework default output configs

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Default output configs were generated on reload to reset an output to
its default settings. The idea was that anything that was removed from
the config or changed at runtime and not in the config should be reset
on reload. Originally, they were created using the output name. Recently,
they were changed to use the output identifier. It turns out that there
are issues of shadowing with that solution as well. This should fix
those issues.

Instead of generating the default output configs on reload and storing
them in the output config list to merge on top of, they are now only
generated when retrieving the output config for an output during a
reload. This means that the default output configs are never stored
anywhere and just used as a base to merge unaltered user configs on top
of during a reload.

Starting with a blank output config, merges get applied in the following
order:
1. Default output config (only during a reload)
2. Wildcard config (only if neither output name or output identifier
exist)
3. Output name config
4. Output identifier config
This commit is contained in:
Brian Ashworth 2018-12-12 12:13:03 -05:00 committed by emersion
parent 01420193ef
commit 1897edabba
3 changed files with 42 additions and 38 deletions
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2
include/sway/config.h
View file

@ -553,8 +553,6 @@ void apply_output_config_to_outputs(struct output_config *oc);
void free_output_config(struct output_config *oc);
void create_default_output_configs(void);
int workspace_output_cmp_workspace(const void *a, const void *b);
int sway_binding_cmp(const void *a, const void *b);

2
sway/config.c
View file

@ -391,8 +391,6 @@ bool load_main_config(const char *file, bool is_active, bool validating) {
memcpy(&config->swaynag_config_errors,
&old_config->swaynag_config_errors,
sizeof(struct swaynag_instance));
create_default_output_configs();
}
config->current_config_path = path;

76
sway/config/output.c
View file

@ -276,7 +276,24 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
}
}
static struct output_config *get_output_config(char *name, char *identifier) {
static void default_output_config(struct output_config *oc,
struct wlr_output *wlr_output) {
oc->enabled = 1;
if (!wl_list_empty(&wlr_output->modes)) {
struct wlr_output_mode *mode =
wl_container_of(wlr_output->modes.prev, mode, link);
oc->width = mode->width;
oc->height = mode->height;
oc->refresh_rate = mode->refresh;
}
oc->x = oc->y = -1;
oc->scale = 1;
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
}
static struct output_config *get_output_config(char *identifier,
struct sway_output *sway_output) {
const char *name = sway_output->wlr_output->name;
struct output_config *oc_name = NULL;
int i = list_seq_find(config->output_configs, output_name_cmp, name);
if (i >= 0) {
@ -289,7 +306,10 @@ static struct output_config *get_output_config(char *name, char *identifier) {
oc_id = config->output_configs->items[i];
}
struct output_config *result = NULL;
struct output_config *result = result = new_output_config("temp");
if (config->reloading) {
default_output_config(result, sway_output->wlr_output);
}
if (oc_name && oc_id) {
// Generate a config named `<identifier> on <name>` which contains a
// merged copy of the identifier on name. This will make sure that both
@ -299,7 +319,8 @@ static struct output_config *get_output_config(char *name, char *identifier) {
char *temp = malloc(length);
snprintf(temp, length, "%s on %s", identifier, name);
result = new_output_config(temp);
free(result->name);
result->name = temp;
merge_output_config(result, oc_name);
merge_output_config(result, oc_id);
@ -309,16 +330,29 @@ static struct output_config *get_output_config(char *name, char *identifier) {
result->height, result->refresh_rate, result->x, result->y,
result->scale, result->transform, result->background,
result->background_option, result->dpms_state);
free(temp);
} else if (oc_name) {
// No identifier config, just return a copy of the name config
result = new_output_config(name);
free(result->name);
result->name = strdup(name);
merge_output_config(result, oc_name);
} else if (oc_id) {
// No name config, just return a copy of the identifier config
result = new_output_config(identifier);
free(result->name);
result->name = strdup(identifier);
merge_output_config(result, oc_id);
} else if (config->reloading) {
// Neither config exists, but we need to reset the output so create a
// default config for the output and if a wildcard config exists, merge
// that on top
free(result->name);
result->name = strdup("*");
i = list_seq_find(config->output_configs, output_name_cmp, "*");
if (i >= 0) {
merge_output_config(result, config->output_configs->items[i]);
}
} else {
free_output_config(result);
result = NULL;
}
return result;
@ -338,7 +372,7 @@ void apply_output_config_to_outputs(struct output_config *oc) {
struct output_config *current = new_output_config(oc->name);
merge_output_config(current, oc);
if (wildcard) {
struct output_config *tmp = get_output_config(name, id);
struct output_config *tmp = get_output_config(id, sway_output);
if (tmp) {
free_output_config(current);
current = tmp;
@ -366,29 +400,3 @@ void free_output_config(struct output_config *oc) {
free(oc->background_fallback);
free(oc);
}
static void default_output_config(struct output_config *oc,
struct wlr_output *wlr_output) {
oc->enabled = 1;
if (!wl_list_empty(&wlr_output->modes)) {
struct wlr_output_mode *mode =
wl_container_of(wlr_output->modes.prev, mode, link);
oc->width = mode->width;
oc->height = mode->height;
oc->refresh_rate = mode->refresh;
}
oc->x = oc->y = -1;
oc->scale = 1;
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
}
void create_default_output_configs(void) {
struct sway_output *sway_output;
wl_list_for_each(sway_output, &root->all_outputs, link) {
char id[128];
output_get_identifier(id, sizeof(id), sway_output);
struct output_config *oc = new_output_config(id);
default_output_config(oc, sway_output->wlr_output);
list_add(config->output_configs, oc);
}
}