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swaybar: allow identifiers for output and tray

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This allows `bar output` and `bar tray_output` to specify an output
identifier. Output names should still work as well.

This parses the output identifier from the xdg_output description,
which wlroots currently sets to `make model serial (name)`. Since this
could change in the future, all identifier comparisons are guarded by
NULL-checks in case the description cannot be parsed to an identifier.
This commit is contained in:
Brian Ashworth 2019-01-13 12:06:35 -05:00
parent d256182f49
commit 50d36ef238
3 changed files with 31 additions and 8 deletions
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30
swaybar/bar.c
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@ -59,6 +59,7 @@ static void swaybar_output_free(struct swaybar_output *output) {
free_workspaces(&output->workspaces);
wl_list_remove(&output->link);
free(output->name);
free(output->identifier);
free(output);
}
@ -166,13 +167,15 @@ bool determine_bar_visibility(struct swaybar *bar, bool moving_layer) {
return visible;
}
static bool bar_uses_output(struct swaybar *bar, const char *name) {
if (bar->config->all_outputs) {
static bool bar_uses_output(struct swaybar_output *output) {
if (output->bar->config->all_outputs) {
return true;
}
char *identifier = output->identifier;
struct config_output *coutput;
wl_list_for_each(coutput, &bar->config->outputs, link) {
if (strcmp(coutput->name, name) == 0) {
wl_list_for_each(coutput, &output->bar->config->outputs, link) {
if (strcmp(coutput->name, output->name) == 0 ||
(identifier && strcmp(coutput->name, identifier) == 0)) {
return true;
}
}
@ -233,7 +236,7 @@ static void xdg_output_handle_done(void *data,
struct swaybar *bar = output->bar;
assert(output->name != NULL);
if (!bar_uses_output(bar, output->name)) {
if (!bar_uses_output(output)) {
swaybar_output_free(output);
return;
}
@ -258,7 +261,22 @@ static void xdg_output_handle_name(void *data,
static void xdg_output_handle_description(void *data,
struct zxdg_output_v1 *xdg_output, const char *description) {
// Who cares
// wlroots currently sets the description to `make model serial (name)`
// If this changes in the future, this will need to be modified.
struct swaybar_output *output = data;
free(output->identifier);
output->identifier = NULL;
char *paren = strrchr(description, '(');
if (paren) {
size_t length = paren - description;
output->identifier = malloc(length);
if (!output->identifier) {
wlr_log(WLR_ERROR, "Failed to allocate output identifier");
return;
}
strncpy(output->identifier, description, length);
output->identifier[length - 1] = '\0';
}
}
struct zxdg_output_v1_listener xdg_output_listener = {