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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <wayland-server.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/types/wlr_xdg_shell.h>
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#include "cairo.h"
#include "pango.h"
#include "sway/config.h"
#include "sway/desktop.h"
#include "sway/desktop/transaction.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/server.h"
#include "sway/tree/arrange.h"
#include "sway/tree/layout.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "log.h"
#include "stringop.h"
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static list_t *bfs_queue;
static list_t *get_bfs_queue() {
if (!bfs_queue) {
bfs_queue = create_list();
if (!bfs_queue) {
wlr_log(WLR_ERROR, "could not allocate list for bfs queue");
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return NULL;
}
}
bfs_queue->length = 0;
return bfs_queue;
}
const char *container_type_to_str(enum sway_container_type type) {
switch (type) {
case C_ROOT:
return "C_ROOT";
case C_OUTPUT:
return "C_OUTPUT";
case C_WORKSPACE:
return "C_WORKSPACE";
case C_CONTAINER:
return "C_CONTAINER";
case C_VIEW:
return "C_VIEW";
default:
return "C_UNKNOWN";
}
}
void container_create_notify(struct sway_container *container) {
// TODO send ipc event type based on the container type
wl_signal_emit(&root_container.sway_root->events.new_container, container);
if (container->type == C_VIEW || container->type == C_CONTAINER) {
ipc_event_window(container, "new");
}
}
static void container_update_textures_recursive(struct sway_container *con) {
container_update_title_textures(con);
if (con->type == C_VIEW) {
view_update_marks_textures(con->sway_view);
} else {
for (int i = 0; i < con->children->length; ++i) {
struct sway_container *child = con->children->items[i];
container_update_textures_recursive(child);
}
}
}
static void handle_reparent(struct wl_listener *listener,
void *data) {
struct sway_container *container =
wl_container_of(listener, container, reparent);
struct sway_container *old_parent = data;
struct sway_container *old_output = old_parent;
if (old_output != NULL && old_output->type != C_OUTPUT) {
old_output = container_parent(old_output, C_OUTPUT);
}
struct sway_container *new_output = container->parent;
if (new_output != NULL && new_output->type != C_OUTPUT) {
new_output = container_parent(new_output, C_OUTPUT);
}
if (old_output && new_output) {
float old_scale = old_output->sway_output->wlr_output->scale;
float new_scale = new_output->sway_output->wlr_output->scale;
if (old_scale != new_scale) {
container_update_textures_recursive(container);
}
}
}
struct sway_container *container_create(enum sway_container_type type) {
// next id starts at 1 because 0 is assigned to root_container in layout.c
static size_t next_id = 1;
struct sway_container *c = calloc(1, sizeof(struct sway_container));
if (!c) {
return NULL;
}
c->id = next_id++;
c->layout = L_NONE;
c->type = type;
c->alpha = 1.0f;
c->instructions = create_list();
if (type != C_VIEW) {
c->children = create_list();
c->current.children = create_list();
}
wl_signal_init(&c->events.destroy);
wl_signal_init(&c->events.reparent);
wl_signal_add(&c->events.reparent, &c->reparent);
c->reparent.notify = handle_reparent;
c->has_gaps = false;
c->gaps_inner = 0;
c->gaps_outer = 0;
c->current_gaps = 0;
return c;
}
static void container_workspace_free(struct sway_workspace *ws) {
list_foreach(ws->output_priority, free);
list_free(ws->output_priority);
ws->floating->destroying = true;
container_free(ws->floating);
free(ws);
}
void container_free(struct sway_container *cont) {
if (!sway_assert(cont->destroying,
"Tried to free container which wasn't marked as destroying")) {
return;
}
if (!sway_assert(cont->instructions->length == 0,
"Tried to free container with pending instructions")) {
return;
}
free(cont->name);
free(cont->formatted_title);
wlr_texture_destroy(cont->title_focused);
wlr_texture_destroy(cont->title_focused_inactive);
wlr_texture_destroy(cont->title_unfocused);
wlr_texture_destroy(cont->title_urgent);
list_free(cont->instructions);
list_free(cont->children);
list_free(cont->current.children);
switch (cont->type) {
case C_ROOT:
break;
case C_OUTPUT:
break;
case C_WORKSPACE:
container_workspace_free(cont->sway_workspace);
break;
case C_CONTAINER:
break;
case C_VIEW:
{
struct sway_view *view = cont->sway_view;
view->swayc = NULL;
free(view->title_format);
view->title_format = NULL;
if (view->destroying) {
view_free(view);
}
}
break;
case C_TYPES:
sway_assert(false, "Didn't expect to see C_TYPES here");
break;
}
free(cont);
}
static struct sway_container *container_workspace_destroy(
struct sway_container *workspace) {
if (!sway_assert(workspace, "cannot destroy null workspace")) {
return NULL;
}
// Do not destroy this if it's the last workspace on this output
struct sway_container *output = container_parent(workspace, C_OUTPUT);
if (output && output->children->length == 1) {
return NULL;
}
wlr_log(WLR_DEBUG, "destroying workspace '%s'", workspace->name);
struct sway_container *parent = workspace->parent;
if (!workspace_is_empty(workspace) && output) {
// Move children to a different workspace on this output
struct sway_container *new_workspace = NULL;
for (int i = 0; i < output->children->length; i++) {
if (output->children->items[i] != workspace) {
new_workspace = output->children->items[i];
break;
}
}
wlr_log(WLR_DEBUG, "moving children to different workspace '%s' -> '%s'",
workspace->name, new_workspace->name);
for (int i = 0; i < workspace->children->length; i++) {
container_move_to(workspace->children->items[i], new_workspace);
}
struct sway_container *floating = workspace->sway_workspace->floating;
for (int i = 0; i < floating->children->length; i++) {
container_move_to(floating->children->items[i],
new_workspace->sway_workspace->floating);
}
}
return parent;
}
static struct sway_container *container_output_destroy(
struct sway_container *output) {
if (!sway_assert(output, "cannot destroy null output")) {
return NULL;
}
if (output->children->length > 0) {
// TODO save workspaces when there are no outputs.
// TODO also check if there will ever be no outputs except for exiting
// program
if (root_container.children->length > 1) {
// Move workspace from this output to another output
struct sway_container *fallback_output =
root_container.children->items[0];
if (fallback_output == output) {
fallback_output = root_container.children->items[1];
}
while (output->children->length) {
struct sway_container *workspace = output->children->items[0];
struct sway_container *new_output =
workspace_output_get_highest_available(workspace, output);
if (!new_output) {
new_output = fallback_output;
workspace_output_add_priority(workspace, new_output);
}
container_remove_child(workspace);
if (!workspace_is_empty(workspace)) {
container_add_child(new_output, workspace);
ipc_event_workspace(workspace, NULL, "move");
} else {
container_destroy(workspace);
}
container_sort_workspaces(new_output);
}
}
}
wl_list_remove(&output->sway_output->mode.link);
wl_list_remove(&output->sway_output->transform.link);
wl_list_remove(&output->sway_output->scale.link);
wl_list_remove(&output->sway_output->damage_destroy.link);
wl_list_remove(&output->sway_output->damage_frame.link);
output->sway_output->swayc = NULL;
output->sway_output = NULL;
wlr_log(WLR_DEBUG, "OUTPUT: Destroying output '%s'", output->name);
return &root_container;
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}
/**
* Implement the actual destroy logic, without reaping.
*/
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static struct sway_container *container_destroy_noreaping(
struct sway_container *con) {
if (con == NULL) {
return NULL;
}
if (con->destroying) {
return NULL;
}
wl_signal_emit(&con->events.destroy, con);
ipc_event_window(con, "close");
// The below functions move their children to somewhere else.
if (con->type == C_OUTPUT) {
container_output_destroy(con);
} else if (con->type == C_WORKSPACE) {
// Workspaces will refuse to be destroyed if they're the last workspace
// on their output.
if (!container_workspace_destroy(con)) {
wlr_log(WLR_ERROR, "workspace doesn't want to destroy");
return NULL;
}
}
con->destroying = true;
container_set_dirty(con);
if (!con->parent) {
return NULL;
}
return container_remove_child(con);
}
bool container_reap_empty(struct sway_container *con) {
if (con->layout == L_FLOATING) {
// Don't reap the magical floating container that each workspace has
return false;
}
switch (con->type) {
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case C_ROOT:
case C_OUTPUT:
// dont reap these
break;
case C_WORKSPACE:
if (!workspace_is_visible(con) && workspace_is_empty(con)) {
wlr_log(WLR_DEBUG, "Destroying workspace via reaper");
container_destroy_noreaping(con);
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return true;
}
break;
case C_CONTAINER:
if (con->children->length == 0) {
container_destroy_noreaping(con);
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return true;
}
case C_VIEW:
break;
case C_TYPES:
sway_assert(false, "container_reap_empty called on an invalid "
"container");
break;
}
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return false;
}
struct sway_container *container_reap_empty_recursive(
struct sway_container *con) {
while (con) {
struct sway_container *next = con->parent;
if (!container_reap_empty(con)) {
break;
}
con = next;
}
return con;
}
struct sway_container *container_flatten(struct sway_container *container) {
while (container->type == C_CONTAINER && container->children->length == 1) {
struct sway_container *child = container->children->items[0];
struct sway_container *parent = container->parent;
container_replace_child(container, child);
container_destroy_noreaping(container);
container = parent;
}
return container;
}
/**
* container_destroy() is the first step in destroying a container. We'll emit
* events, detach it from the tree and mark it as destroying. The container will
* remain in memory until it's no longer used by a transaction, then it will be
* freed via container_free().
*
* This function just wraps container_destroy_noreaping(), then does reaping.
*/
struct sway_container *container_destroy(struct sway_container *con) {
struct sway_container *parent = container_destroy_noreaping(con);
if (!parent) {
return NULL;
}
return container_reap_empty_recursive(parent);
}
static void container_close_func(struct sway_container *container, void *data) {
if (container->type == C_VIEW) {
view_close(container->sway_view);
}
}
struct sway_container *container_close(struct sway_container *con) {
if (!sway_assert(con != NULL,
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"container_close called with a NULL container")) {
return NULL;
}
struct sway_container *parent = con->parent;
if (con->type == C_VIEW) {
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view_close(con->sway_view);
} else {
container_for_each_descendant_dfs(con, container_close_func, NULL);
}
return parent;
}
struct sway_container *container_view_create(struct sway_container *sibling,
struct sway_view *sway_view) {
if (!sway_assert(sibling,
"container_view_create called with NULL sibling/parent")) {
return NULL;
}
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const char *title = view_get_title(sway_view);
struct sway_container *swayc = container_create(C_VIEW);
wlr_log(WLR_DEBUG, "Adding new view %p:%s to container %p %d %s",
swayc, title, sibling, sibling ? sibling->type : 0, sibling->name);
// Setup values
swayc->sway_view = sway_view;
swayc->width = 0;
swayc->height = 0;
if (sibling->type == C_WORKSPACE) {
// Case of focused workspace, just create as child of it
container_add_child(sibling, swayc);
} else {
// Regular case, create as sibling of current container
container_add_sibling(sibling, swayc);
}
container_create_notify(swayc);
return swayc;
}
void container_descendants(struct sway_container *root,
enum sway_container_type type,
void (*func)(struct sway_container *item, void *data), void *data) {
if (!root->children || !root->children->length) {
return;
}
for (int i = 0; i < root->children->length; ++i) {
struct sway_container *item = root->children->items[i];
if (item->type == type) {
func(item, data);
}
container_descendants(item, type, func, data);
}
}
struct sway_container *container_find(struct sway_container *container,
bool (*test)(struct sway_container *view, void *data), void *data) {
if (!container->children) {
return NULL;
}
for (int i = 0; i < container->children->length; ++i) {
struct sway_container *child = container->children->items[i];
if (test(child, data)) {
return child;
} else {
struct sway_container *res = container_find(child, test, data);
if (res) {
return res;
}
}
}
if (container->type == C_WORKSPACE) {
return container_find(container->sway_workspace->floating, test, data);
}
return NULL;
}
struct sway_container *container_parent(struct sway_container *container,
enum sway_container_type type) {
if (!sway_assert(container, "container is NULL")) {
return NULL;
}
if (!sway_assert(type < C_TYPES && type >= C_ROOT, "invalid type")) {
return NULL;
}
do {
container = container->parent;
} while (container && container->type != type);
return container;
}
static struct sway_container *container_at_view(struct sway_container *swayc,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (!sway_assert(swayc->type == C_VIEW, "Expected a view")) {
return NULL;
}
struct sway_view *sview = swayc->sway_view;
double view_sx = lx - sview->x;
double view_sy = ly - sview->y;
double _sx, _sy;
struct wlr_surface *_surface = NULL;
switch (sview->type) {
case SWAY_VIEW_XWAYLAND:
_surface = wlr_surface_surface_at(sview->surface,
view_sx, view_sy, &_sx, &_sy);
break;
case SWAY_VIEW_XDG_SHELL_V6:
_surface = wlr_xdg_surface_v6_surface_at(
sview->wlr_xdg_surface_v6,
view_sx, view_sy, &_sx, &_sy);
break;
case SWAY_VIEW_XDG_SHELL:
_surface = wlr_xdg_surface_surface_at(
sview->wlr_xdg_surface,
view_sx, view_sy, &_sx, &_sy);
break;
}
if (_surface) {
*sx = _sx;
*sy = _sy;
*surface = _surface;
}
return swayc;
}
/**
* container_at for a container with layout L_TABBED.
*/
static struct sway_container *container_at_tabbed(struct sway_container *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (ly < parent->y || ly > parent->y + parent->height) {
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return NULL;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
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// Tab titles
int title_height = container_titlebar_height();
if (ly < parent->y + title_height) {
int tab_width = parent->width / parent->children->length;
int child_index = (lx - parent->x) / tab_width;
if (child_index >= parent->children->length) {
child_index = parent->children->length - 1;
}
struct sway_container *child = parent->children->items[child_index];
return seat_get_focus_inactive(seat, child);
}
// Surfaces
struct sway_container *current = seat_get_active_child(seat, parent);
return container_at(current, lx, ly, surface, sx, sy);
}
/**
* container_at for a container with layout L_STACKED.
*/
static struct sway_container *container_at_stacked(
struct sway_container *parent, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (ly < parent->y || ly > parent->y + parent->height) {
return NULL;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
// Title bars
int title_height = container_titlebar_height();
int child_index = (ly - parent->y) / title_height;
if (child_index < parent->children->length) {
struct sway_container *child = parent->children->items[child_index];
return seat_get_focus_inactive(seat, child);
}
// Surfaces
struct sway_container *current = seat_get_active_child(seat, parent);
return container_at(current, lx, ly, surface, sx, sy);
}
/**
* container_at for a container with layout L_HORIZ or L_VERT.
*/
static struct sway_container *container_at_linear(struct sway_container *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
for (int i = 0; i < parent->children->length; ++i) {
struct sway_container *child = parent->children->items[i];
struct wlr_box box = {
.x = child->x,
.y = child->y,
.width = child->width,
.height = child->height,
};
if (wlr_box_contains_point(&box, lx, ly)) {
return container_at(child, lx, ly, surface, sx, sy);
}
}
return NULL;
}
struct sway_container *container_at(struct sway_container *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (!sway_assert(parent->type >= C_WORKSPACE,
"Expected workspace or deeper")) {
return NULL;
}
if (parent->type == C_VIEW) {
return container_at_view(parent, lx, ly, surface, sx, sy);
}
if (!parent->children->length) {
return NULL;
}
switch (parent->layout) {
case L_HORIZ:
case L_VERT:
return container_at_linear(parent, lx, ly, surface, sx, sy);
case L_TABBED:
return container_at_tabbed(parent, lx, ly, surface, sx, sy);
case L_STACKED:
return container_at_stacked(parent, lx, ly, surface, sx, sy);
case L_FLOATING:
sway_assert(false, "Didn't expect to see floating here");
return NULL;
case L_NONE:
return NULL;
}
return NULL;
}
struct sway_container *floating_container_at(double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
for (int i = 0; i < root_container.children->length; ++i) {
struct sway_container *output = root_container.children->items[i];
for (int j = 0; j < output->children->length; ++j) {
struct sway_container *workspace = output->children->items[j];
struct sway_workspace *ws = workspace->sway_workspace;
if (!workspace_is_visible(workspace)) {
continue;
}
for (int k = 0; k < ws->floating->children->length; ++k) {
struct sway_container *floater =
ws->floating->children->items[k];
struct wlr_box box = {
.x = floater->x,
.y = floater->y,
.width = floater->width,
.height = floater->height,
};
if (wlr_box_contains_point(&box, lx, ly)) {
return container_at(floater, lx, ly, surface, sx, sy);
}
}
}
}
return NULL;
}
void container_for_each_descendant_dfs(struct sway_container *container,
void (*f)(struct sway_container *container, void *data),
void *data) {
if (container) {
if (container->children) {
for (int i = 0; i < container->children->length; ++i) {
struct sway_container *child =
container->children->items[i];
container_for_each_descendant_dfs(child, f, data);
}
}
f(container, data);
}
}
void container_for_each_descendant_bfs(struct sway_container *con,
void (*f)(struct sway_container *con, void *data), void *data) {
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list_t *queue = get_bfs_queue();
if (!queue) {
return;
}
if (queue == NULL) {
wlr_log(WLR_ERROR, "could not allocate list");
return;
}
list_add(queue, con);
struct sway_container *current = NULL;
while (queue->length) {
current = queue->items[0];
list_del(queue, 0);
f(current, data);
// TODO floating containers
list_cat(queue, current->children);
}
}
bool container_has_ancestor(struct sway_container *descendant,
struct sway_container *ancestor) {
while (descendant->type != C_ROOT) {
descendant = descendant->parent;
if (descendant == ancestor) {
return true;
}
}
return false;
}
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static bool find_child_func(struct sway_container *con, void *data) {
struct sway_container *child = data;
return con == child;
}
bool container_has_child(struct sway_container *con,
struct sway_container *child) {
if (con == NULL || con->type == C_VIEW) {
return false;
}
return container_find(con, find_child_func, child);
}
int container_count_descendants_of_type(struct sway_container *con,
enum sway_container_type type) {
int children = 0;
if (con->type == type) {
children++;
}
if (con->children) {
for (int i = 0; i < con->children->length; i++) {
struct sway_container *child = con->children->items[i];
children += container_count_descendants_of_type(child, type);
}
}
return children;
}
void container_damage_whole(struct sway_container *container) {
for (int i = 0; i < root_container.children->length; ++i) {
struct sway_container *cont = root_container.children->items[i];
if (cont->type == C_OUTPUT) {
output_damage_whole_container(cont->sway_output, container);
}
}
}
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static void update_title_texture(struct sway_container *con,
struct wlr_texture **texture, struct border_colors *class) {
if (!sway_assert(con->type == C_CONTAINER || con->type == C_VIEW,
"Unexpected type %s", container_type_to_str(con->type))) {
return;
}
struct sway_container *output = container_parent(con, C_OUTPUT);
if (!output) {
return;
}
if (*texture) {
wlr_texture_destroy(*texture);
*texture = NULL;
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}
if (!con->formatted_title) {
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return;
}
double scale = output->sway_output->wlr_output->scale;
int width = 0;
int height = con->title_height * scale;
cairo_t *c = cairo_create(NULL);
get_text_size(c, config->font, &width, NULL, scale, config->pango_markup,
"%s", con->formatted_title);
cairo_destroy(c);
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cairo_surface_t *surface = cairo_image_surface_create(
CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cairo = cairo_create(surface);
cairo_set_source_rgba(cairo, class->background[0], class->background[1],
class->background[2], class->background[3]);
cairo_paint(cairo);
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PangoContext *pango = pango_cairo_create_context(cairo);
cairo_set_antialias(cairo, CAIRO_ANTIALIAS_BEST);
cairo_set_source_rgba(cairo, class->text[0], class->text[1],
class->text[2], class->text[3]);
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cairo_move_to(cairo, 0, 0);
pango_printf(cairo, config->font, scale, config->pango_markup,
"%s", con->formatted_title);
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cairo_surface_flush(surface);
unsigned char *data = cairo_image_surface_get_data(surface);
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
struct wlr_renderer *renderer = wlr_backend_get_renderer(
output->sway_output->wlr_output->backend);
*texture = wlr_texture_from_pixels(
renderer, WL_SHM_FORMAT_ARGB8888, stride, width, height, data);
cairo_surface_destroy(surface);
g_object_unref(pango);
cairo_destroy(cairo);
}
void container_update_title_textures(struct sway_container *container) {
update_title_texture(container, &container->title_focused,
&config->border_colors.focused);
update_title_texture(container, &container->title_focused_inactive,
&config->border_colors.focused_inactive);
update_title_texture(container, &container->title_unfocused,
&config->border_colors.unfocused);
update_title_texture(container, &container->title_urgent,
&config->border_colors.urgent);
container_damage_whole(container);
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}
void container_calculate_title_height(struct sway_container *container) {
if (!container->formatted_title) {
container->title_height = 0;
return;
}
cairo_t *cairo = cairo_create(NULL);
int height;
get_text_size(cairo, config->font, NULL, &height, 1, config->pango_markup,
"%s", container->formatted_title);
cairo_destroy(cairo);
container->title_height = height;
}
/**
* Calculate and return the length of the tree representation.
* An example tree representation is: V[Terminal, Firefox]
* If buffer is not NULL, also populate the buffer with the representation.
*/
static size_t get_tree_representation(struct sway_container *parent, char *buffer) {
size_t len = 2;
switch (parent->layout) {
case L_VERT:
lenient_strcat(buffer, "V[");
break;
case L_HORIZ:
lenient_strcat(buffer, "H[");
break;
case L_TABBED:
lenient_strcat(buffer, "T[");
break;
case L_STACKED:
lenient_strcat(buffer, "S[");
break;
case L_FLOATING:
lenient_strcat(buffer, "F[");
break;
case L_NONE:
lenient_strcat(buffer, "D[");
break;
}
for (int i = 0; i < parent->children->length; ++i) {
if (i != 0) {
++len;
lenient_strcat(buffer, " ");
}
struct sway_container *child = parent->children->items[i];
const char *identifier = NULL;
if (child->type == C_VIEW) {
identifier = view_get_class(child->sway_view);
if (!identifier) {
identifier = view_get_app_id(child->sway_view);
}
} else {
identifier = child->formatted_title;
}
if (identifier) {
len += strlen(identifier);
lenient_strcat(buffer, identifier);
} else {
len += 6;
lenient_strcat(buffer, "(null)");
}
}
++len;
lenient_strcat(buffer, "]");
return len;
}
void container_notify_subtree_changed(struct sway_container *container) {
if (!container || container->type < C_WORKSPACE) {
return;
}
free(container->formatted_title);
container->formatted_title = NULL;
size_t len = get_tree_representation(container, NULL);
char *buffer = calloc(len + 1, sizeof(char));
if (!sway_assert(buffer, "Unable to allocate title string")) {
return;
}
get_tree_representation(container, buffer);
container->formatted_title = buffer;
if (container->type != C_WORKSPACE) {
container_calculate_title_height(container);
container_update_title_textures(container);
container_notify_subtree_changed(container->parent);
}
}
size_t container_titlebar_height() {
return config->font_height + TITLEBAR_V_PADDING * 2;
}
void container_set_floating(struct sway_container *container, bool enable) {
if (container_is_floating(container) == enable) {
return;
}
struct sway_container *workspace = container_parent(container, C_WORKSPACE);
struct sway_seat *seat = input_manager_current_seat(input_manager);
if (enable) {
container_remove_child(container);
container_add_child(workspace->sway_workspace->floating, container);
if (container->type == C_VIEW) {
view_init_floating(container->sway_view);
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view_set_tiled(container->sway_view, false);
}
seat_set_focus(seat, seat_get_focus_inactive(seat, container));
container_reap_empty_recursive(workspace);
} else {
// Returning to tiled
container_remove_child(container);
container_add_child(workspace, container);
container->width = container->parent->width;
container->height = container->parent->height;
if (container->type == C_VIEW) {
view_set_tiled(container->sway_view, true);
}
container->is_sticky = false;
container_reap_empty_recursive(workspace->sway_workspace->floating);
}
ipc_event_window(container, "floating");
}
void container_set_geometry_from_floating_view(struct sway_container *con) {
if (!sway_assert(con->type == C_VIEW, "Expected a view")) {
return;
}
if (!sway_assert(container_is_floating(con),
"Expected a floating view")) {
return;
}
struct sway_view *view = con->sway_view;
size_t border_width = view->border_thickness * (view->border != B_NONE);
size_t top =
view->border == B_NORMAL ? container_titlebar_height() : border_width;
con->x = view->x - border_width;
con->y = view->y - top;
con->width = view->width + border_width * 2;
con->height = top + view->height + border_width;
}
bool container_is_floating(struct sway_container *container) {
struct sway_container *workspace = container_parent(container, C_WORKSPACE);
if (!workspace) {
return false;
}
return container->parent == workspace->sway_workspace->floating;
}
void container_get_box(struct sway_container *container, struct wlr_box *box) {
box->x = container->x;
box->y = container->y;
box->width = container->width;
box->height = container->height;
}
/**
* Translate the container's position as well as all children.
*/
static void container_floating_translate(struct sway_container *con,
double x_amount, double y_amount) {
con->x += x_amount;
con->y += y_amount;
con->current.swayc_x += x_amount;
con->current.swayc_y += y_amount;
if (con->type == C_VIEW) {
con->sway_view->x += x_amount;
con->sway_view->y += y_amount;
con->current.view_x += x_amount;
con->current.view_y += y_amount;
} else {
for (int i = 0; i < con->children->length; ++i) {
struct sway_container *child = con->children->items[i];
container_floating_translate(child, x_amount, y_amount);
}
}
}
/**
* Choose an output for the floating container's new position.
*
* If the center of the container intersects an output then we'll choose that
* one, otherwise we'll choose whichever output is closest to the container's
* center.
*/
static struct sway_container *container_floating_find_output(
struct sway_container *con) {
double center_x = con->x + con->width / 2;
double center_y = con->y + con->height / 2;
struct sway_container *closest_output = NULL;
double closest_distance = DBL_MAX;
for (int i = 0; i < root_container.children->length; ++i) {
struct sway_container *output = root_container.children->items[i];
struct wlr_box output_box;
double closest_x, closest_y;
container_get_box(output, &output_box);
wlr_box_closest_point(&output_box, center_x, center_y,
&closest_x, &closest_y);
if (center_x == closest_x && center_y == closest_y) {
// The center of the floating container is on this output
return output;
}
double x_dist = closest_x - center_x;
double y_dist = closest_y - center_y;
double distance = x_dist * x_dist + y_dist * y_dist;
if (distance < closest_distance) {
closest_output = output;
closest_distance = distance;
}
}
return closest_output;
}
void container_floating_move_to(struct sway_container *con,
double lx, double ly) {
if (!sway_assert(container_is_floating(con),
"Expected a floating container")) {
return;
}
desktop_damage_whole_container(con);
container_floating_translate(con, lx - con->x, ly - con->y);
desktop_damage_whole_container(con);
struct sway_container *old_workspace = container_parent(con, C_WORKSPACE);
struct sway_container *new_output = container_floating_find_output(con);
if (!sway_assert(new_output, "Unable to find any output")) {
return;
}
struct sway_container *new_workspace =
output_get_active_workspace(new_output->sway_output);
if (old_workspace != new_workspace) {
container_remove_child(con);
container_add_child(new_workspace->sway_workspace->floating, con);
arrange_windows(old_workspace);
arrange_windows(new_workspace);
}
}
void container_set_dirty(struct sway_container *container) {
if (container->dirty) {
return;
}
container->dirty = true;
list_add(server.dirty_containers, container);
}