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#define _POSIX_C_SOURCE 200809L
#include <strings.h>
#include <wlr/util/log.h>
#include "config.h"
#include "log.h"
#include "sway/commands.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/root.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "stringop.h"
static const char* EXPECTED_SYNTAX =
"Expected 'swap container with id|con_id|mark <arg>'";
static void swap_places(struct sway_container *con1,
struct sway_container *con2) {
struct sway_container *temp = malloc(sizeof(struct sway_container));
temp->x = con1->x;
temp->y = con1->y;
temp->width = con1->width;
temp->height = con1->height;
temp->parent = con1->parent;
con1->x = con2->x;
con1->y = con2->y;
con1->width = con2->width;
con1->height = con2->height;
con2->x = temp->x;
con2->y = temp->y;
con2->width = temp->width;
con2->height = temp->height;
int temp_index = container_sibling_index(con1);
container_insert_child(con2->parent, con1, container_sibling_index(con2));
container_insert_child(temp->parent, con2, temp_index);
free(temp);
}
static void swap_focus(struct sway_container *con1,
struct sway_container *con2, struct sway_seat *seat,
struct sway_container *focus) {
if (focus == con1 || focus == con2) {
struct sway_workspace *ws1 = con1->workspace;
struct sway_workspace *ws2 = con2->workspace;
enum sway_container_layout layout1 = container_parent_layout(con1);
enum sway_container_layout layout2 = container_parent_layout(con2);
if (focus == con1 && (layout2 == L_TABBED || layout2 == L_STACKED)) {
if (workspace_is_visible(ws2)) {
seat_set_focus_warp(seat, &con2->node, false);
}
seat_set_focus_container(seat, ws1 != ws2 ? con2 : con1);
} else if (focus == con2 && (layout1 == L_TABBED
|| layout1 == L_STACKED)) {
if (workspace_is_visible(ws1)) {
seat_set_focus_warp(seat, &con1->node, false);
}
seat_set_focus_container(seat, ws1 != ws2 ? con1 : con2);
} else if (ws1 != ws2) {
seat_set_focus_container(seat, focus == con1 ? con2 : con1);
} else {
seat_set_focus_container(seat, focus);
}
} else {
seat_set_focus_container(seat, focus);
}
}
static void container_swap(struct sway_container *con1,
struct sway_container *con2) {
if (!sway_assert(con1 && con2, "Cannot swap with nothing")) {
return;
}
if (!sway_assert(!container_has_ancestor(con1, con2)
&& !container_has_ancestor(con2, con1),
"Cannot swap ancestor and descendant")) {
return;
}
if (!sway_assert(!container_is_floating(con1)
&& !container_is_floating(con2),
"Swapping with floating containers is not supported")) {
return;
}
wlr_log(WLR_DEBUG, "Swapping containers %zu and %zu",
con1->node.id, con2->node.id);
bool fs1 = con1->is_fullscreen;
bool fs2 = con2->is_fullscreen;
if (fs1) {
container_set_fullscreen(con1, false);
}
if (fs2) {
container_set_fullscreen(con2, false);
}
struct sway_seat *seat = input_manager_get_default_seat(input_manager);
struct sway_container *focus = seat_get_focused_container(seat);
struct sway_workspace *vis1 =
output_get_active_workspace(con1->workspace->output);
struct sway_workspace *vis2 =
output_get_active_workspace(con2->workspace->output);
char *stored_prev_name = NULL;
if (prev_workspace_name) {
stored_prev_name = strdup(prev_workspace_name);
}
swap_places(con1, con2);
if (!workspace_is_visible(vis1)) {
seat_set_focus(seat, seat_get_focus_inactive(seat, &vis1->node));
}
if (!workspace_is_visible(vis2)) {
seat_set_focus(seat, seat_get_focus_inactive(seat, &vis2->node));
}
swap_focus(con1, con2, seat, focus);
if (stored_prev_name) {
free(prev_workspace_name);
prev_workspace_name = stored_prev_name;
}
if (fs1) {
container_set_fullscreen(con2, true);
}
if (fs2) {
container_set_fullscreen(con1, true);
}
}
static bool test_con_id(struct sway_container *container, void *con_id) {
return container->node.id == (size_t)con_id;
}
static bool test_id(struct sway_container *container, void *id) {
#ifdef HAVE_XWAYLAND
xcb_window_t *wid = id;
return (container->view && container->view->type == SWAY_VIEW_XWAYLAND
&& container->view->wlr_xwayland_surface->window_id == *wid);
#else
return false;
#endif
}
static bool test_mark(struct sway_container *container, void *mark) {
if (container->view && container->view->marks->length) {
return !list_seq_find(container->view->marks,
(int (*)(const void *, const void *))strcmp, mark);
}
return false;
}
struct cmd_results *cmd_swap(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "swap", EXPECTED_AT_LEAST, 4))) {
return error;
}
if (strcasecmp(argv[0], "container") || strcasecmp(argv[1], "with")) {
return cmd_results_new(CMD_INVALID, "swap", EXPECTED_SYNTAX);
}
struct sway_container *current = config->handler_context.container;
struct sway_container *other;
char *value = join_args(argv + 3, argc - 3);
if (strcasecmp(argv[2], "id") == 0) {
#ifdef HAVE_XWAYLAND
xcb_window_t id = strtol(value, NULL, 0);
other = root_find_container(test_id, (void *)&id);
#endif
} else if (strcasecmp(argv[2], "con_id") == 0) {
size_t con_id = atoi(value);
other = root_find_container(test_con_id, (void *)con_id);
} else if (strcasecmp(argv[2], "mark") == 0) {
other = root_find_container(test_mark, (void *)value);
} else {
free(value);
return cmd_results_new(CMD_INVALID, "swap", EXPECTED_SYNTAX);
}
if (!other) {
error = cmd_results_new(CMD_FAILURE, "swap",
"Failed to find %s '%s'", argv[2], value);
} else if (!current) {
error = cmd_results_new(CMD_FAILURE, "swap",
"Can only swap with containers and views");
} else if (container_has_ancestor(current, other)
|| container_has_ancestor(other, current)) {
error = cmd_results_new(CMD_FAILURE, "swap",
"Cannot swap ancestor and descendant");
} else if (container_is_floating(current) || container_is_floating(other)) {
error = cmd_results_new(CMD_FAILURE, "swap",
"Swapping with floating containers is not supported");
}
free(value);
if (error) {
return error;
}
container_swap(current, other);
arrange_node(node_get_parent(¤t->node));
if (node_get_parent(&other->node) != node_get_parent(¤t->node)) {
arrange_node(node_get_parent(&other->node));
}
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}
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