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swayfx/sway/tree/workspace.c
Ryan Dwyer 2b5a404ac9 Replace hacky L_FLOATING container with a list 
Workspaces previously had a magical `workspace->floating` container,
which had a layout of L_FLOATING and whose children were actual floating
views. This allowed some conveniences, but was a hacky solution because
the container has to be exempt from focus, coordinate transactions with
the workspace, and omit emitting IPC events (which we didn't do).

This commit changes it to be a list directly in the sway_workspace. The
L_FLOATING layout is no longer used so this has been removed as well.

* Fixes incorrect check in the swap command (it checked if the
containers had the L_FLOATING layout, but this layout applied to the
magical container).
* Introduces workspace_add_floating
2018-08-19 16:18:33 +10:00

610 lines
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#define _XOPEN_SOURCE 500
#include <ctype.h>
#include <limits.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#include "stringop.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/container.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "list.h"
#include "log.h"
#include "util.h"
struct sway_container *workspace_get_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 = workspace_get_initial_output(name);
}
wlr_log(WLR_DEBUG, "Added workspace %s for output %s", name, output->name);
struct sway_container *workspace = container_create(C_WORKSPACE);
workspace->x = output->x;
workspace->y = output->y;
workspace->width = output->width;
workspace->height = output->height;
workspace->name = !name ? NULL : strdup(name);
workspace->prev_split_layout = L_NONE;
workspace->layout = container_get_default_layout(output);
struct sway_workspace *swayws = calloc(1, sizeof(struct sway_workspace));
if (!swayws) {
return NULL;
}
swayws->swayc = workspace;
swayws->floating = create_list();
swayws->output_priority = create_list();
workspace->sway_workspace = swayws;
workspace_output_add_priority(workspace, output);
container_add_child(output, workspace);
output_sort_workspaces(output);
container_create_notify(workspace);
return workspace;
}
char *prev_workspace_name = NULL;
void next_name_map(struct sway_container *ws, void *data) {
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, ",;");
}
// TODO: support "move container to workspace" bindings as well
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 (isdigit(_target[0]) && 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 for available workspace names by looking through output-workspace
// assignments primarily, falling back to bindings and numbers.
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);
}
for (int i = 0; i < config->workspace_outputs->length; ++i) {
// Unlike with bindings, this does not guarantee order
const struct workspace_output *wso = config->workspace_outputs->items[i];
if (strcmp(wso->output, output_name) == 0
&& workspace_by_name(wso->workspace) == NULL) {
free(target);
target = strdup(wso->workspace);
}
}
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")) {
return NULL;
}
sprintf(name, "%d", ws_num++);
return name;
}
static bool _workspace_by_number(struct sway_container *view, void *data) {
if (view->type != C_WORKSPACE) {
return false;
}
char *name = data;
char *view_name = view->name;
while (isdigit(*name)) {
if (*name++ != *view_name++) {
return false;
}
}
return !isdigit(*view_name);
}
struct sway_container *workspace_by_number(const char* name) {
return root_find_workspace(_workspace_by_number, (void *) name);
}
static bool _workspace_by_name(struct sway_container *view, void *data) {
return (view->type == C_WORKSPACE) &&
(strcasecmp(view->name, (char *) data) == 0);
}
struct sway_container *workspace_by_name(const char *name) {
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *current_workspace = NULL, *current_output = NULL;
struct sway_container *focus = seat_get_focus(seat);
if (focus) {
current_workspace = focus->type == C_WORKSPACE ?
focus : container_parent(focus, C_WORKSPACE);
current_output = container_parent(focus, C_OUTPUT);
}
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 if (strcasecmp(name, "back_and_forth") == 0) {
return prev_workspace_name ?
root_find_workspace(_workspace_by_name, (void*)prev_workspace_name)
: NULL;
} else {
return root_find_workspace(_workspace_by_name, (void*)name);
}
}
/**
* 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.
*/
static struct sway_container *workspace_output_prev_next_impl(
struct sway_container *output, int dir) {
if (!output) {
return NULL;
}
if (!sway_assert(output->type == C_OUTPUT,
"Argument must be an output, is %d", output->type)) {
return NULL;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus = seat_get_focus_inactive(seat, output);
struct sway_container *workspace = (focus->type == C_WORKSPACE ?
focus :
container_parent(focus, C_WORKSPACE));
int index = list_find(output->children, workspace);
size_t new_index = wrap(index + dir, output->children->length);
return output->children->items[new_index];
}
/**
* 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.
*/
static struct sway_container *workspace_prev_next_impl(
struct sway_container *workspace, int dir) {
if (!workspace) {
return NULL;
}
if (!sway_assert(workspace->type == C_WORKSPACE,
"Argument must be a workspace, is %d", workspace->type)) {
return NULL;
}
struct sway_container *output = workspace->parent;
int index = list_find(output->children, workspace);
int new_index = index + dir;
if (new_index >= 0 && new_index < output->children->length) {
return output->children->items[index + dir];
}
// Look on a different output
int output_index = list_find(root_container.children, output);
new_index = wrap(output_index + dir, root_container.children->length);
output = root_container.children->items[new_index];
if (dir == 1) {
return output->children->items[0];
} else {
return output->children->items[output->children->length - 1];
}
}
struct sway_container *workspace_output_next(struct sway_container *current) {
return workspace_output_prev_next_impl(current, 1);
}
struct sway_container *workspace_next(struct sway_container *current) {
return workspace_prev_next_impl(current, 1);
}
struct sway_container *workspace_output_prev(struct sway_container *current) {
return workspace_output_prev_next_impl(current, -1);
}
struct sway_container *workspace_prev(struct sway_container *current) {
return workspace_prev_next_impl(current, -1);
}
bool workspace_switch(struct sway_container *workspace,
bool no_auto_back_and_forth) {
if (!workspace) {
return false;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus =
seat_get_focus_inactive(seat, &root_container);
if (!seat || !focus) {
return false;
}
struct sway_container *active_ws = focus;
if (active_ws->type != C_WORKSPACE) {
active_ws = container_parent(focus, C_WORKSPACE);
}
if (!no_auto_back_and_forth && config->auto_back_and_forth
&& active_ws == workspace
&& prev_workspace_name) {
struct sway_container *new_ws = workspace_by_name(prev_workspace_name);
workspace = new_ws ?
new_ws :
workspace_create(NULL, prev_workspace_name);
}
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) {
wlr_log(WLR_ERROR, "Unable to allocate previous workspace name");
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);
list_t *floating = next_output_prev_ws->sway_workspace->floating;
bool has_sticky = false;
if (workspace != next_output_prev_ws) {
for (int i = 0; i < floating->length; ++i) {
struct sway_container *floater = floating->items[i];
if (floater->is_sticky) {
has_sticky = true;
container_remove_child(floater);
workspace_add_floating(workspace, floater);
if (floater == focus) {
seat_set_focus(seat, NULL);
seat_set_focus(seat, floater);
}
--i;
}
}
}
wlr_log(WLR_DEBUG, "Switching to workspace %p:%s",
workspace, workspace->name);
struct sway_container *next = seat_get_focus_inactive(seat, workspace);
if (next == NULL) {
next = workspace;
}
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);
}
}
seat_set_focus(seat, next);
struct sway_container *output = container_parent(workspace, C_OUTPUT);
arrange_windows(output);
return true;
}
bool workspace_is_visible(struct sway_container *ws) {
if (ws->destroying) {
return false;
}
struct sway_container *output = container_parent(ws, C_OUTPUT);
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus = seat_get_focus_inactive(seat, output);
if (focus->type != C_WORKSPACE) {
focus = container_parent(focus, C_WORKSPACE);
}
return focus == ws;
}
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
list_t *floating = ws->sway_workspace->floating;
for (int i = 0; i < floating->length; ++i) {
struct sway_container *floater = floating->items[i];
if (!floater->is_sticky) {
return false;
}
}
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 = root_find_output(_output_by_name, name);
if (output) {
return output;
}
}
return NULL;
}
static bool find_urgent_iterator(struct sway_container *con, void *data) {
return con->type == C_VIEW && view_is_urgent(con->sway_view);
}
void workspace_detect_urgent(struct sway_container *workspace) {
bool new_urgent = (bool)workspace_find_container(workspace,
find_urgent_iterator, NULL);
if (workspace->sway_workspace->urgent != new_urgent) {
workspace->sway_workspace->urgent = new_urgent;
ipc_event_workspace(NULL, workspace, "urgent");
container_damage_whole(workspace);
}
}
void workspace_for_each_container(struct sway_container *ws,
void (*f)(struct sway_container *con, void *data), void *data) {
if (!sway_assert(ws->type == C_WORKSPACE, "Expected a workspace")) {
return;
}
// Tiling
for (int i = 0; i < ws->children->length; ++i) {
struct sway_container *container = ws->children->items[i];
f(container, data);
container_for_each_child(container, f, data);
}
// Floating
for (int i = 0; i < ws->sway_workspace->floating->length; ++i) {
struct sway_container *container =
ws->sway_workspace->floating->items[i];
f(container, data);
container_for_each_child(container, f, data);
}
}
struct sway_container *workspace_find_container(struct sway_container *ws,
bool (*test)(struct sway_container *con, void *data), void *data) {
if (!sway_assert(ws->type == C_WORKSPACE, "Expected a workspace")) {
return NULL;
}
struct sway_container *result = NULL;
// Tiling
for (int i = 0; i < ws->children->length; ++i) {
struct sway_container *child = ws->children->items[i];
if (test(child, data)) {
return child;
}
if ((result = container_find_child(child, test, data))) {
return result;
}
}
// Floating
for (int i = 0; i < ws->sway_workspace->floating->length; ++i) {
struct sway_container *child = ws->sway_workspace->floating->items[i];
if (test(child, data)) {
return child;
}
if ((result = container_find_child(child, test, data))) {
return result;
}
}
return NULL;
}
struct sway_container *workspace_wrap_children(struct sway_container *ws) {
struct sway_container *middle = container_create(C_CONTAINER);
middle->layout = ws->layout;
while (ws->children->length) {
struct sway_container *child = ws->children->items[0];
container_remove_child(child);
container_add_child(middle, child);
}
container_add_child(ws, middle);
return middle;
}
void workspace_add_floating(struct sway_container *workspace,
struct sway_container *con) {
if (!sway_assert(workspace->type == C_WORKSPACE, "Expected a workspace")) {
return;
}
if (!sway_assert(con->parent == NULL, "Expected an orphan container")) {
return;
}
list_add(workspace->sway_workspace->floating, con);
con->parent = workspace;
container_set_dirty(workspace);
container_set_dirty(con);
}
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