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swaybar: handle hotplugging

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Don't kill and respawn swaybars on hotplug.
This commit is contained in:
emersion 2018-09-19 11:37:24 +02:00
parent fa4308c5ab
commit 82f1393cbb
6 changed files with 81 additions and 66 deletions
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4
include/sway/config.h
View file

@ -512,9 +512,7 @@ void free_sway_binding(struct sway_binding *sb);
void seat_execute_command(struct sway_seat *seat, struct sway_binding *binding);
void load_swaybars();
void invoke_swaybar(struct bar_config *bar);
void load_swaybars(void);
void terminate_swaybg(pid_t pid);

26
sway/config/bar.c
View file

@ -165,7 +165,7 @@ cleanup:
return NULL;
}
void invoke_swaybar(struct bar_config *bar) {
static void invoke_swaybar(struct bar_config *bar) {
// Pipe to communicate errors
int filedes[2];
if (pipe(filedes) == -1) {
@ -219,27 +219,13 @@ void invoke_swaybar(struct bar_config *bar) {
close(filedes[1]);
}
void load_swaybars() {
void load_swaybars(void) {
for (int i = 0; i < config->bars->length; ++i) {
struct bar_config *bar = config->bars->items[i];
bool apply = false;
if (bar->outputs) {
for (int j = 0; j < bar->outputs->length; ++j) {
char *o = bar->outputs->items[j];
if (!strcmp(o, "*") || output_by_name(o)) {
apply = true;
break;
}
}
} else {
apply = true;
}
if (apply) {
if (bar->pid != 0) {
terminate_swaybar(bar->pid);
}
wlr_log(WLR_DEBUG, "Invoking swaybar for bar id '%s'", bar->id);
invoke_swaybar(bar);
if (bar->pid != 0) {
terminate_swaybar(bar->pid);
}
wlr_log(WLR_DEBUG, "Invoking swaybar for bar id '%s'", bar->id);
invoke_swaybar(bar);
}
}

1
sway/main.c
View file

@ -424,6 +424,7 @@ int main(int argc, char **argv) {
}
config->active = true;
load_swaybars();
// Execute commands until there are none left
wlr_log(WLR_DEBUG, "Running deferred commands");
while (config->cmd_queue->length) {

2
sway/tree/output.c
View file

@ -109,8 +109,6 @@ void output_enable(struct sway_output *output, struct output_config *oc) {
wl_signal_emit(&root->events.new_node, &output->node);
load_swaybars();
arrange_layers(output);
arrange_root();
}

111
swaybar/bar.c
View file

@ -48,8 +48,13 @@ static void swaybar_output_free(struct swaybar_output *output) {
return;
}
wlr_log(WLR_DEBUG, "Removing output %s", output->name);
zwlr_layer_surface_v1_destroy(output->layer_surface);
wl_surface_destroy(output->surface);
if (output->layer_surface != NULL) {
zwlr_layer_surface_v1_destroy(output->layer_surface);
}
if (output->surface != NULL) {
wl_surface_destroy(output->surface);
}
zxdg_output_v1_destroy(output->xdg_output);
wl_output_destroy(output->output);
destroy_buffer(&output->buffers[0]);
destroy_buffer(&output->buffers[1]);
@ -283,6 +288,37 @@ const struct wl_seat_listener seat_listener = {
.name = seat_handle_name,
};
static void add_layer_surface(struct swaybar_output *output) {
if (output->surface != NULL) {
return;
}
struct swaybar *bar = output->bar;
output->surface = wl_compositor_create_surface(bar->compositor);
assert(output->surface);
output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
bar->layer_shell, output->surface, output->output,
ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");
assert(output->layer_surface);
zwlr_layer_surface_v1_add_listener(output->layer_surface,
&layer_surface_listener, output);
zwlr_layer_surface_v1_set_anchor(output->layer_surface,
bar->config->position);
}
static bool bar_uses_output(struct swaybar *bar, const char *name) {
if (bar->config->all_outputs) {
return true;
}
struct config_output *coutput;
wl_list_for_each(coutput, &bar->config->outputs, link) {
if (strcmp(coutput->name, name) == 0) {
return true;
}
}
return false;
}
static void output_geometry(void *data, struct wl_output *output, int32_t x,
int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
const char *make, const char *model, int32_t transform) {
@ -326,7 +362,22 @@ static void xdg_output_handle_logical_size(void *data,
static void xdg_output_handle_done(void *data,
struct zxdg_output_v1 *xdg_output) {
// Who cares
struct swaybar_output *output = data;
struct swaybar *bar = output->bar;
assert(output->name != NULL);
if (!bar_uses_output(bar, output->name)) {
swaybar_output_free(output);
return;
}
if (wl_list_empty(&output->link)) {
wl_list_remove(&output->link);
wl_list_insert(&bar->outputs, &output->link);
add_layer_surface(output);
render_frame(bar, output);
}
}
static void xdg_output_handle_name(void *data,
@ -349,17 +400,15 @@ struct zxdg_output_v1_listener xdg_output_listener = {
.description = xdg_output_handle_description,
};
static bool bar_uses_output(struct swaybar *bar, const char *name) {
if (bar->config->all_outputs) {
return true;
static void add_xdg_output(struct swaybar_output *output) {
if (output->xdg_output != NULL) {
return;
}
struct config_output *coutput;
wl_list_for_each(coutput, &bar->config->outputs, link) {
if (strcmp(coutput->name, name) == 0) {
return true;
}
}
return false;
assert(output->bar->xdg_output_manager != NULL);
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
output->bar->xdg_output_manager, output->output);
zxdg_output_v1_add_listener(output->xdg_output, &xdg_output_listener,
output);
}
static void handle_global(void *data, struct wl_registry *registry,
@ -386,7 +435,10 @@ static void handle_global(void *data, struct wl_registry *registry,
output->wl_name = name;
wl_list_init(&output->workspaces);
wl_list_init(&output->hotspots);
wl_list_insert(&bar->outputs, &output->link);
wl_list_init(&output->link);
if (bar->xdg_output_manager != NULL) {
add_xdg_output(output);
}
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
bar->layer_shell = wl_registry_bind(
registry, name, &zwlr_layer_shell_v1_interface, 1);
@ -416,7 +468,9 @@ static const struct wl_registry_listener registry_listener = {
static void render_all_frames(struct swaybar *bar) {
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
render_frame(bar, output);
if (output->surface != NULL) {
render_frame(bar, output);
}
}
}
@ -443,23 +497,10 @@ void bar_setup(struct swaybar *bar,
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
bar->xdg_output_manager, output->output);
zxdg_output_v1_add_listener(output->xdg_output, &xdg_output_listener,
output);
add_xdg_output(output);
}
wl_display_roundtrip(bar->display);
struct swaybar_output *output_tmp;
wl_list_for_each_safe(output, output_tmp, &bar->outputs, link) {
if (!bar_uses_output(bar, output->name)) {
zxdg_output_v1_destroy(output->xdg_output);
wl_output_destroy(output->output);
wl_list_remove(&output->link);
free(output);
}
}
struct swaybar_pointer *pointer = &bar->pointer;
int max_scale = 1;
@ -479,18 +520,6 @@ void bar_setup(struct swaybar *bar,
pointer->cursor_surface = wl_compositor_create_surface(bar->compositor);
assert(pointer->cursor_surface);
wl_list_for_each(output, &bar->outputs, link) {
output->surface = wl_compositor_create_surface(bar->compositor);
assert(output->surface);
output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
bar->layer_shell, output->surface, output->output,
ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");
assert(output->layer_surface);
zwlr_layer_surface_v1_add_listener(output->layer_surface,
&layer_surface_listener, output);
zwlr_layer_surface_v1_set_anchor(output->layer_surface,
bar->config->position);
}
ipc_get_workspaces(bar);
render_all_frames(bar);
}

3
swaybar/render.c
View file

@ -1,4 +1,5 @@
#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <limits.h>
#include <stdlib.h>
#include <stdint.h>
@ -480,6 +481,8 @@ static uint32_t render_to_cairo(cairo_t *cairo,
}
void render_frame(struct swaybar *bar, struct swaybar_output *output) {
assert(output->surface != NULL);
struct swaybar_hotspot *hotspot, *tmp;
wl_list_for_each_safe(hotspot, tmp, &output->hotspots, link) {
if (hotspot->destroy) {