swayfx/sway/tree/output.c
Rouven Czerwinski e4df675840 output: initialize layers and signal before using functions
The previous pull request #2993 tried to fix this by moving the function which
used the layers after the initilization.
Since this initialization is done unconditionally only depending on the struct
definition, move the layer initialization to the beginning of the function.
Also move the signal initialization of the destroy event.

Fixes #2992
2018-10-28 11:06:15 +01:00

383 lines
11 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <ctype.h>
#include <string.h>
#include <strings.h>
#include <wlr/types/wlr_output_damage.h>
#include "sway/ipc-server.h"
#include "sway/layers.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/output.h"
#include "sway/tree/workspace.h"
#include "log.h"
#include "util.h"
static void restore_workspaces(struct sway_output *output) {
// Workspace output priority
for (int i = 0; i < root->outputs->length; i++) {
struct sway_output *other = root->outputs->items[i];
if (other == output) {
continue;
}
for (int j = 0; j < other->workspaces->length; j++) {
struct sway_workspace *ws = other->workspaces->items[j];
struct sway_output *highest =
workspace_output_get_highest_available(ws, NULL);
if (highest == output) {
workspace_detach(ws);
output_add_workspace(output, ws);
ipc_event_workspace(NULL, ws, "move");
j--;
}
}
}
// Saved workspaces
for (int i = 0; i < root->saved_workspaces->length; ++i) {
struct sway_workspace *ws = root->saved_workspaces->items[i];
output_add_workspace(output, ws);
ipc_event_workspace(NULL, ws, "move");
}
root->saved_workspaces->length = 0;
output_sort_workspaces(output);
}
struct sway_output *output_create(struct wlr_output *wlr_output) {
struct sway_output *output = calloc(1, sizeof(struct sway_output));
node_init(&output->node, N_OUTPUT, output);
output->wlr_output = wlr_output;
wlr_output->data = output;
wl_signal_add(&wlr_output->events.destroy, &output->destroy);
wl_list_insert(&root->all_outputs, &output->link);
output->workspaces = create_list();
output->current.workspaces = create_list();
return output;
}
void output_enable(struct sway_output *output, struct output_config *oc) {
if (!sway_assert(!output->enabled, "output is already enabled")) {
return;
}
struct wlr_output *wlr_output = output->wlr_output;
size_t len = sizeof(output->layers) / sizeof(output->layers[0]);
for (size_t i = 0; i < len; ++i) {
wl_list_init(&output->layers[i]);
}
wl_signal_init(&output->events.destroy);
output->enabled = true;
apply_output_config(oc, output);
list_add(root->outputs, output);
output->lx = wlr_output->lx;
output->ly = wlr_output->ly;
wlr_output_transformed_resolution(wlr_output,
&output->width, &output->height);
restore_workspaces(output);
if (!output->workspaces->length) {
// Create workspace
char *ws_name = workspace_next_name(wlr_output->name);
wlr_log(WLR_DEBUG, "Creating default workspace %s", ws_name);
struct sway_workspace *ws = workspace_create(output, ws_name);
// Set each seat's focus if not already set
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
if (!seat->has_focus) {
seat_set_focus_workspace(seat, ws);
}
}
free(ws_name);
ipc_event_workspace(NULL, ws, "init");
}
input_manager_configure_xcursor();
wl_signal_add(&wlr_output->events.mode, &output->mode);
wl_signal_add(&wlr_output->events.transform, &output->transform);
wl_signal_add(&wlr_output->events.scale, &output->scale);
wl_signal_add(&wlr_output->events.present, &output->present);
wl_signal_add(&output->damage->events.frame, &output->damage_frame);
wl_signal_add(&output->damage->events.destroy, &output->damage_destroy);
output_add_listeners(output);
wl_signal_emit(&root->events.new_node, &output->node);
arrange_layers(output);
arrange_root();
}
static void evacuate_sticky(struct sway_workspace *old_ws,
struct sway_output *new_output) {
struct sway_workspace *new_ws = output_get_active_workspace(new_output);
while (old_ws->floating->length) {
struct sway_container *sticky = old_ws->floating->items[0];
container_detach(sticky);
workspace_add_floating(new_ws, sticky);
container_handle_fullscreen_reparent(sticky);
container_floating_move_to_center(sticky);
ipc_event_window(sticky, "move");
}
workspace_detect_urgent(new_ws);
}
static void output_evacuate(struct sway_output *output) {
if (!output->workspaces->length) {
return;
}
struct sway_output *fallback_output = NULL;
if (root->outputs->length > 1) {
fallback_output = root->outputs->items[0];
if (fallback_output == output) {
fallback_output = root->outputs->items[1];
}
}
while (output->workspaces->length) {
struct sway_workspace *workspace = output->workspaces->items[0];
workspace_detach(workspace);
struct sway_output *new_output =
workspace_output_get_highest_available(workspace, output);
if (!new_output) {
new_output = fallback_output;
}
if (workspace_is_empty(workspace)) {
// If floating is not empty, there are sticky containers to move
if (workspace->floating->length) {
evacuate_sticky(workspace, new_output);
}
workspace_begin_destroy(workspace);
continue;
}
if (new_output) {
workspace_output_add_priority(workspace, new_output);
output_add_workspace(new_output, workspace);
output_sort_workspaces(new_output);
ipc_event_workspace(NULL, workspace, "move");
} else {
list_add(root->saved_workspaces, workspace);
}
}
}
void output_destroy(struct sway_output *output) {
if (!sway_assert(output->node.destroying,
"Tried to free output which wasn't marked as destroying")) {
return;
}
if (!sway_assert(output->wlr_output == NULL,
"Tried to free output which still had a wlr_output")) {
return;
}
if (!sway_assert(output->node.ntxnrefs == 0, "Tried to free output "
"which is still referenced by transactions")) {
return;
}
list_free(output->workspaces);
list_free(output->current.workspaces);
free(output);
}
static void untrack_output(struct sway_container *con, void *data) {
struct sway_output *output = data;
int index = list_find(con->outputs, output);
if (index != -1) {
list_del(con->outputs, index);
}
}
void output_disable(struct sway_output *output) {
if (!sway_assert(output->enabled, "Expected an enabled output")) {
return;
}
wlr_log(WLR_DEBUG, "Disabling output '%s'", output->wlr_output->name);
wl_signal_emit(&output->events.destroy, output);
output_evacuate(output);
root_for_each_container(untrack_output, output);
int index = list_find(root->outputs, output);
list_del(root->outputs, index);
wl_list_remove(&output->mode.link);
wl_list_remove(&output->transform.link);
wl_list_remove(&output->scale.link);
wl_list_remove(&output->present.link);
wl_list_remove(&output->damage_destroy.link);
wl_list_remove(&output->damage_frame.link);
output->enabled = false;
arrange_root();
}
void output_begin_destroy(struct sway_output *output) {
if (!sway_assert(!output->enabled, "Expected a disabled output")) {
return;
}
wlr_log(WLR_DEBUG, "Destroying output '%s'", output->wlr_output->name);
output->node.destroying = true;
node_set_dirty(&output->node);
wl_list_remove(&output->link);
wl_list_remove(&output->destroy.link);
output->wlr_output->data = NULL;
output->wlr_output = NULL;
}
struct output_config *output_find_config(struct sway_output *output) {
const char *name = output->wlr_output->name;
char identifier[128];
output_get_identifier(identifier, sizeof(identifier), output);
struct output_config *oc = NULL, *all = NULL;
for (int i = 0; i < config->output_configs->length; ++i) {
struct output_config *cur = config->output_configs->items[i];
if (strcasecmp(name, cur->name) == 0 ||
strcasecmp(identifier, cur->name) == 0) {
wlr_log(WLR_DEBUG, "Matched output config for %s", name);
oc = cur;
}
if (strcasecmp("*", cur->name) == 0) {
wlr_log(WLR_DEBUG, "Matched wildcard output config for %s", name);
all = cur;
}
if (oc && all) {
break;
}
}
if (!oc) {
oc = all;
}
return oc;
}
struct sway_output *output_from_wlr_output(struct wlr_output *output) {
return output->data;
}
struct sway_output *output_get_in_direction(struct sway_output *reference,
enum movement_direction direction) {
enum wlr_direction wlr_dir = 0;
if (!sway_assert(sway_dir_to_wlr(direction, &wlr_dir),
"got invalid direction: %d", direction)) {
return NULL;
}
int lx = reference->wlr_output->lx + reference->width / 2;
int ly = reference->wlr_output->ly + reference->height / 2;
struct wlr_output *wlr_adjacent = wlr_output_layout_adjacent_output(
root->output_layout, wlr_dir, reference->wlr_output, lx, ly);
if (!wlr_adjacent) {
return NULL;
}
return output_from_wlr_output(wlr_adjacent);
}
void output_add_workspace(struct sway_output *output,
struct sway_workspace *workspace) {
if (workspace->output) {
workspace_detach(workspace);
}
list_add(output->workspaces, workspace);
workspace->output = output;
node_set_dirty(&output->node);
node_set_dirty(&workspace->node);
}
void output_for_each_workspace(struct sway_output *output,
void (*f)(struct sway_workspace *ws, void *data), void *data) {
for (int i = 0; i < output->workspaces->length; ++i) {
struct sway_workspace *workspace = output->workspaces->items[i];
f(workspace, data);
}
}
void output_for_each_container(struct sway_output *output,
void (*f)(struct sway_container *con, void *data), void *data) {
for (int i = 0; i < output->workspaces->length; ++i) {
struct sway_workspace *workspace = output->workspaces->items[i];
workspace_for_each_container(workspace, f, data);
}
}
struct sway_workspace *output_find_workspace(struct sway_output *output,
bool (*test)(struct sway_workspace *ws, void *data), void *data) {
for (int i = 0; i < output->workspaces->length; ++i) {
struct sway_workspace *workspace = output->workspaces->items[i];
if (test(workspace, data)) {
return workspace;
}
}
return NULL;
}
struct sway_container *output_find_container(struct sway_output *output,
bool (*test)(struct sway_container *con, void *data), void *data) {
struct sway_container *result = NULL;
for (int i = 0; i < output->workspaces->length; ++i) {
struct sway_workspace *workspace = output->workspaces->items[i];
if ((result = workspace_find_container(workspace, test, data))) {
return result;
}
}
return NULL;
}
static int sort_workspace_cmp_qsort(const void *_a, const void *_b) {
struct sway_workspace *a = *(void **)_a;
struct sway_workspace *b = *(void **)_b;
if (isdigit(a->name[0]) && isdigit(b->name[0])) {
int a_num = strtol(a->name, NULL, 10);
int b_num = strtol(b->name, NULL, 10);
return (a_num < b_num) ? -1 : (a_num > b_num);
} else if (isdigit(a->name[0])) {
return -1;
} else if (isdigit(b->name[0])) {
return 1;
}
return 0;
}
void output_sort_workspaces(struct sway_output *output) {
list_stable_sort(output->workspaces, sort_workspace_cmp_qsort);
}
void output_get_box(struct sway_output *output, struct wlr_box *box) {
box->x = output->lx;
box->y = output->ly;
box->width = output->width;
box->height = output->height;
}
enum sway_container_layout output_get_default_layout(
struct sway_output *output) {
if (config->default_layout != L_NONE) {
return config->default_layout;
}
if (config->default_orientation != L_NONE) {
return config->default_orientation;
}
if (output->height > output->width) {
return L_VERT;
}
return L_HORIZ;
}