swayfx/sway/tree/workspace.c

542 lines
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C
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#define _XOPEN_SOURCE 500
#include <ctype.h>
#include <limits.h>
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#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
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#include <strings.h>
#include "stringop.h"
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#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
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#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
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#include "sway/tree/container.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
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#include "list.h"
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#include "log.h"
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#include "util.h"
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static struct sway_container *get_workspace_initial_output(const char *name) {
struct sway_container *parent;
// Search for workspace<->output pair
int e = config->workspace_outputs->length;
for (int i = 0; i < config->workspace_outputs->length; ++i) {
struct workspace_output *wso = config->workspace_outputs->items[i];
if (strcasecmp(wso->workspace, name) == 0) {
// Find output to use if it exists
e = root_container.children->length;
for (i = 0; i < e; ++i) {
parent = root_container.children->items[i];
if (strcmp(parent->name, wso->output) == 0) {
return parent;
}
}
break;
}
}
// Otherwise put it on the focused output
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus =
seat_get_focus_inactive(seat, &root_container);
parent = focus;
parent = container_parent(parent, C_OUTPUT);
return parent;
}
struct sway_container *workspace_create(struct sway_container *output,
const char *name) {
if (output == NULL) {
output = get_workspace_initial_output(name);
}
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wlr_log(WLR_DEBUG, "Added workspace %s for output %s", name, output->name);
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struct sway_container *workspace = container_create(C_WORKSPACE);
workspace->x = output->x;
workspace->y = output->y;
workspace->width = output->width;
workspace->height = output->height;
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workspace->name = !name ? NULL : strdup(name);
workspace->prev_layout = L_NONE;
workspace->layout = container_get_default_layout(output);
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struct sway_workspace *swayws = calloc(1, sizeof(struct sway_workspace));
if (!swayws) {
return NULL;
}
swayws->swayc = workspace;
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swayws->floating = container_create(C_CONTAINER);
swayws->floating->parent = swayws->swayc;
swayws->floating->layout = L_FLOATING;
swayws->output_priority = create_list();
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workspace->sway_workspace = swayws;
workspace_output_add_priority(workspace, output);
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container_add_child(output, workspace);
container_sort_workspaces(output);
container_create_notify(workspace);
return workspace;
}
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char *prev_workspace_name = NULL;
struct workspace_by_number_data {
int len;
const char *cset;
const char *name;
};
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void next_name_map(struct sway_container *ws, void *data) {
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int *count = data;
++count;
}
static bool workspace_valid_on_output(const char *output_name,
const char *ws_name) {
int i;
for (i = 0; i < config->workspace_outputs->length; ++i) {
struct workspace_output *wso = config->workspace_outputs->items[i];
if (strcasecmp(wso->workspace, ws_name) == 0) {
if (strcasecmp(wso->output, output_name) != 0) {
return false;
}
}
}
return true;
}
static void workspace_name_from_binding(const struct sway_binding * binding,
const char* output_name, int *min_order, char **earliest_name) {
char *cmdlist = strdup(binding->command);
char *dup = cmdlist;
char *name = NULL;
// workspace n
char *cmd = argsep(&cmdlist, " ");
if (cmdlist) {
name = argsep(&cmdlist, ",;");
}
if (strcmp("workspace", cmd) == 0 && name) {
char *_target = strdup(name);
_target = do_var_replacement(_target);
strip_quotes(_target);
wlr_log(WLR_DEBUG, "Got valid workspace command for target: '%s'",
_target);
// Make sure that the command references an actual workspace
// not a command about workspaces
if (strcmp(_target, "next") == 0 ||
strcmp(_target, "prev") == 0 ||
strcmp(_target, "next_on_output") == 0 ||
strcmp(_target, "prev_on_output") == 0 ||
strcmp(_target, "number") == 0 ||
strcmp(_target, "back_and_forth") == 0 ||
strcmp(_target, "current") == 0) {
free(_target);
free(dup);
return;
}
// If the command is workspace number <name>, isolate the name
if (strncmp(_target, "number ", strlen("number ")) == 0) {
size_t length = strlen(_target) - strlen("number ") + 1;
char *temp = malloc(length);
strncpy(temp, _target + strlen("number "), length - 1);
temp[length - 1] = '\0';
free(_target);
_target = temp;
wlr_log(WLR_DEBUG, "Isolated name from workspace number: '%s'", _target);
// Make sure the workspace number doesn't already exist
if (workspace_by_number(_target)) {
free(_target);
free(dup);
return;
}
}
// Make sure that the workspace doesn't already exist
if (workspace_by_name(_target)) {
free(_target);
free(dup);
return;
}
// make sure that the workspace can appear on the given
// output
if (!workspace_valid_on_output(output_name, _target)) {
free(_target);
free(dup);
return;
}
if (binding->order < *min_order) {
*min_order = binding->order;
free(*earliest_name);
*earliest_name = _target;
wlr_log(WLR_DEBUG, "Workspace: Found free name %s", _target);
} else {
free(_target);
}
}
free(dup);
}
char *workspace_next_name(const char *output_name) {
wlr_log(WLR_DEBUG, "Workspace: Generating new workspace name for output %s",
output_name);
// Scan all workspace bindings to find the next available workspace name,
// if none are found/available then default to a number
struct sway_mode *mode = config->current_mode;
int order = INT_MAX;
char *target = NULL;
for (int i = 0; i < mode->keysym_bindings->length; ++i) {
workspace_name_from_binding(mode->keysym_bindings->items[i],
output_name, &order, &target);
}
for (int i = 0; i < mode->keycode_bindings->length; ++i) {
workspace_name_from_binding(mode->keycode_bindings->items[i],
output_name, &order, &target);
}
if (target != NULL) {
return target;
}
// As a fall back, get the current number of active workspaces
// and return that + 1 for the next workspace's name
int ws_num = root_container.children->length;
int l = snprintf(NULL, 0, "%d", ws_num);
char *name = malloc(l + 1);
if (!sway_assert(name, "Cloud not allocate workspace name")) {
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return NULL;
}
sprintf(name, "%d", ws_num++);
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return name;
}
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static bool _workspace_by_number(struct sway_container *view, void *data) {
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if (view->type != C_WORKSPACE) {
return false;
}
struct workspace_by_number_data *wbnd = data;
int a = strspn(view->name, wbnd->cset);
return a == wbnd->len && strncmp(view->name, wbnd->name, a) == 0;
}
struct sway_container *workspace_by_number(const char* name) {
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struct workspace_by_number_data wbnd = {0, "1234567890", name};
wbnd.len = strspn(name, wbnd.cset);
if (wbnd.len <= 0) {
return NULL;
}
return container_find(&root_container,
_workspace_by_number, (void *) &wbnd);
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}
static bool _workspace_by_name(struct sway_container *view, void *data) {
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return (view->type == C_WORKSPACE) &&
(strcasecmp(view->name, (char *) data) == 0);
}
struct sway_container *workspace_by_name(const char *name) {
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struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *current_workspace = NULL, *current_output = NULL;
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struct sway_container *focus = seat_get_focus(seat);
if (focus) {
current_workspace = container_parent(focus, C_WORKSPACE);
current_output = container_parent(focus, C_OUTPUT);
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}
if (strcmp(name, "prev") == 0) {
return workspace_prev(current_workspace);
} else if (strcmp(name, "prev_on_output") == 0) {
return workspace_output_prev(current_output);
} else if (strcmp(name, "next") == 0) {
return workspace_next(current_workspace);
} else if (strcmp(name, "next_on_output") == 0) {
return workspace_output_next(current_output);
} else if (strcmp(name, "current") == 0) {
return current_workspace;
} else {
return container_find(&root_container, _workspace_by_name,
(void *)name);
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}
}
/**
* Get the previous or next workspace on the specified output. Wraps around at
* the end and beginning. If next is false, the previous workspace is returned,
* otherwise the next one is returned.
*/
struct sway_container *workspace_output_prev_next_impl(
struct sway_container *output, bool next) {
if (!output) {
return NULL;
}
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if (!sway_assert(output->type == C_OUTPUT,
"Argument must be an output, is %d", output->type)) {
return NULL;
}
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struct sway_seat *seat = input_manager_current_seat(input_manager);
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struct sway_container *focus = seat_get_focus_inactive(seat, output);
struct sway_container *workspace = (focus->type == C_WORKSPACE ?
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focus :
container_parent(focus, C_WORKSPACE));
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int i;
for (i = 0; i < output->children->length; i++) {
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if (output->children->items[i] == workspace) {
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return output->children->items[
wrap(i + (next ? 1 : -1), output->children->length)];
}
}
// Doesn't happen, at worst the for loop returns the previously active
// workspace
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return NULL;
}
/**
* Get the previous or next workspace. If the first/last workspace on an output
* is active, proceed to the previous/next output's previous/next workspace. If
* next is false, the previous workspace is returned, otherwise the next one is
* returned.
*/
struct sway_container *workspace_prev_next_impl(
struct sway_container *workspace, bool next) {
if (!workspace) {
return NULL;
}
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if (!sway_assert(workspace->type == C_WORKSPACE,
"Argument must be a workspace, is %d", workspace->type)) {
return NULL;
}
struct sway_container *current_output = workspace->parent;
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int offset = next ? 1 : -1;
int start = next ? 0 : 1;
int end;
if (next) {
end = current_output->children->length - 1;
} else {
end = current_output->children->length;
}
int i;
for (i = start; i < end; i++) {
if (current_output->children->items[i] == workspace) {
return current_output->children->items[i + offset];
}
}
// Given workspace is the first/last on the output, jump to the
// previous/next output
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int num_outputs = root_container.children->length;
for (i = 0; i < num_outputs; i++) {
if (root_container.children->items[i] == current_output) {
struct sway_container *next_output = root_container.children->items[
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wrap(i + offset, num_outputs)];
return workspace_output_prev_next_impl(next_output, next);
}
}
// Doesn't happen, at worst the for loop returns the previously active
// workspace on the active output
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return NULL;
}
struct sway_container *workspace_output_next(struct sway_container *current) {
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return workspace_output_prev_next_impl(current, true);
}
struct sway_container *workspace_next(struct sway_container *current) {
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return workspace_prev_next_impl(current, true);
}
struct sway_container *workspace_output_prev(struct sway_container *current) {
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return workspace_output_prev_next_impl(current, false);
}
struct sway_container *workspace_prev(struct sway_container *current) {
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return workspace_prev_next_impl(current, false);
}
bool workspace_switch(struct sway_container *workspace) {
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if (!workspace) {
return false;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus =
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seat_get_focus_inactive(seat, &root_container);
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if (!seat || !focus) {
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return false;
}
struct sway_container *active_ws = focus;
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if (active_ws->type != C_WORKSPACE) {
active_ws = container_parent(focus, C_WORKSPACE);
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}
if (config->auto_back_and_forth
&& active_ws == workspace
&& prev_workspace_name) {
struct sway_container *new_ws = workspace_by_name(prev_workspace_name);
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workspace = new_ws ?
new_ws :
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workspace_create(NULL, prev_workspace_name);
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}
if (!prev_workspace_name || (strcmp(prev_workspace_name, active_ws->name)
&& active_ws != workspace)) {
free(prev_workspace_name);
prev_workspace_name = malloc(strlen(active_ws->name) + 1);
if (!prev_workspace_name) {
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wlr_log(WLR_ERROR, "Unable to allocate previous workspace name");
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return false;
}
strcpy(prev_workspace_name, active_ws->name);
}
// Move sticky containers to new workspace
struct sway_container *next_output = workspace->parent;
struct sway_container *next_output_prev_ws =
seat_get_active_child(seat, next_output);
struct sway_container *floating =
next_output_prev_ws->sway_workspace->floating;
bool has_sticky = false;
for (int i = 0; i < floating->children->length; ++i) {
struct sway_container *floater = floating->children->items[i];
if (floater->is_sticky) {
has_sticky = true;
container_remove_child(floater);
container_add_child(workspace->sway_workspace->floating, floater);
if (floater == focus) {
seat_set_focus(seat, NULL);
seat_set_focus(seat, floater);
}
--i;
}
}
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wlr_log(WLR_DEBUG, "Switching to workspace %p:%s",
workspace, workspace->name);
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struct sway_container *next = seat_get_focus_inactive(seat, workspace);
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if (next == NULL) {
next = workspace;
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}
if (has_sticky) {
// If there's a sticky container, we might be setting focus to the same
// container that's already focused, so seat_set_focus is effectively a
// no op. We therefore need to send the IPC event and clean up the old
// workspace here.
ipc_event_workspace(active_ws, workspace, "focus");
if (!workspace_is_visible(active_ws) && workspace_is_empty(active_ws)) {
container_destroy(active_ws);
}
}
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seat_set_focus(seat, next);
struct sway_container *output = container_parent(workspace, C_OUTPUT);
arrange_windows(output);
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return true;
}
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bool workspace_is_visible(struct sway_container *ws) {
if (ws->destroying) {
return false;
}
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struct sway_container *output = container_parent(ws, C_OUTPUT);
struct sway_seat *seat = input_manager_current_seat(input_manager);
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struct sway_container *focus = seat_get_focus_inactive(seat, output);
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if (focus->type != C_WORKSPACE) {
focus = container_parent(focus, C_WORKSPACE);
}
return focus == ws;
}
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bool workspace_is_empty(struct sway_container *ws) {
if (!sway_assert(ws->type == C_WORKSPACE, "Expected a workspace")) {
return false;
}
if (ws->children->length) {
return false;
}
// Sticky views are not considered to be part of this workspace
struct sway_container *floating = ws->sway_workspace->floating;
for (int i = 0; i < floating->children->length; ++i) {
struct sway_container *floater = floating->children->items[i];
if (!floater->is_sticky) {
return false;
}
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}
return true;
}
static int find_output(const void *id1, const void *id2) {
return strcmp(id1, id2) ? 0 : 1;
}
void workspace_output_raise_priority(struct sway_container *workspace,
struct sway_container *old_output, struct sway_container *output) {
struct sway_workspace *ws = workspace->sway_workspace;
int old_index = list_seq_find(ws->output_priority, find_output,
old_output->name);
if (old_index < 0) {
return;
}
int new_index = list_seq_find(ws->output_priority, find_output,
output->name);
if (new_index < 0) {
list_insert(ws->output_priority, old_index, strdup(output->name));
} else if (new_index > old_index) {
char *name = ws->output_priority->items[new_index];
list_del(ws->output_priority, new_index);
list_insert(ws->output_priority, old_index, name);
}
}
void workspace_output_add_priority(struct sway_container *workspace,
struct sway_container *output) {
int index = list_seq_find(workspace->sway_workspace->output_priority,
find_output, output->name);
if (index < 0) {
list_add(workspace->sway_workspace->output_priority,
strdup(output->name));
}
}
static bool _output_by_name(struct sway_container *output, void *data) {
return output->type == C_OUTPUT && strcasecmp(output->name, data) == 0;
}
struct sway_container *workspace_output_get_highest_available(
struct sway_container *ws, struct sway_container *exclude) {
for (int i = 0; i < ws->sway_workspace->output_priority->length; i++) {
char *name = ws->sway_workspace->output_priority->items[i];
if (exclude && strcasecmp(name, exclude->name) == 0) {
continue;
}
struct sway_container *output = container_find(&root_container,
_output_by_name, name);
if (output) {
return output;
}
}
return NULL;
}
void workspace_detect_urgent(struct sway_container *workspace) {
bool new_urgent = container_has_urgent_child(workspace);
if (workspace->sway_workspace->urgent != new_urgent) {
workspace->sway_workspace->urgent = new_urgent;
ipc_event_workspace(NULL, workspace, "urgent");
container_damage_whole(workspace);
}
}