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keybinding.c
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// Copyright 2020 - 2024, project-repo and the cagebreak contributors
// SPDX-License-Identifier: MIT
#define _POSIX_C_SOURCE 200809L
#include <signal.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wlr/backend/multi.h>
#include <wlr/backend/session.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_keyboard_group.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/util/log.h>
#include "input.h"
#include "input_manager.h"
#include "keybinding.h"
#include "message.h"
#include "output.h"
#include "seat.h"
#include "server.h"
#include "util.h"
#include "view.h"
#include "workspace.h"
char *keybinding_action_string[] = {FOREACH_KEYBINDING(GENERATE_STRING)};
int
keybinding_resize(struct keybinding_list *list) {
if(list->length == list->capacity) {
list->capacity *= 2;
struct keybinding **new_list =
realloc(list->keybindings, sizeof(void *) * list->capacity);
if(new_list == NULL) {
return -1;
} else {
list->keybindings = new_list;
return 0;
}
}
return 0;
}
struct keybinding **
find_keybinding(const struct keybinding_list *list,
const struct keybinding *keybinding) {
struct keybinding **it = list->keybindings;
for(size_t i = 0; i < list->length; ++i, ++it) {
if(!(keybinding->modifiers ^ (*it)->modifiers) &&
keybinding->mode == (*it)->mode && keybinding->key == (*it)->key) {
return it;
}
}
return NULL;
}
void
keybinding_free(struct keybinding *keybinding, bool recursive) {
switch(keybinding->action) {
case KEYBINDING_DEFINEMODE:
case KEYBINDING_RUN_COMMAND:
if(keybinding->data.c != NULL) {
free(keybinding->data.c);
}
break;
case KEYBINDING_DEFINEKEY:
if(keybinding->data.kb != NULL && recursive) {
keybinding_free(keybinding->data.kb, true);
}
break;
case KEYBINDING_CONFIGURE_OUTPUT:
free(keybinding->data.o_cfg->output_name);
free(keybinding->data.o_cfg);
break;
case KEYBINDING_CONFIGURE_INPUT:
free(keybinding->data.i_cfg->identifier);
if(keybinding->data.i_cfg->mapped_from_region) {
free(keybinding->data.i_cfg->mapped_from_region);
}
if(keybinding->data.i_cfg->mapped_to_output) {
free(keybinding->data.i_cfg->mapped_to_output);
}
free(keybinding->data.o_cfg);
break;
case KEYBINDING_CONFIGURE_MESSAGE:
if(keybinding->data.m_cfg->font != NULL) {
free(keybinding->data.m_cfg->font);
}
free(keybinding->data.m_cfg);
break;
case KEYBINDING_DISPLAY_MESSAGE:
if(keybinding->data.c != NULL) {
free(keybinding->data.c);
}
break;
case KEYBINDING_SEND_CUSTOM_EVENT:
if(keybinding->data.c != NULL) {
free(keybinding->data.c);
}
break;
case KEYBINDING_SETMODECURSOR:
if(keybinding->data.c != NULL) {
free(keybinding->data.c);
}
default:
break;
}
free(keybinding);
}
int
keybinding_list_push(struct keybinding_list *list,
struct keybinding *keybinding) {
/* Error resizing list */
if(keybinding_resize(list) != 0) {
return -1;
}
/*Maintain that only a single keybinding for a key, modifier and mode may
* exist*/
struct keybinding **found_keybinding = find_keybinding(list, keybinding);
if(found_keybinding != NULL) {
keybinding_free(*found_keybinding, true);
*found_keybinding = keybinding;
wlr_log(WLR_DEBUG, "A keybinding was found twice in the config file.");
} else {
list->keybindings[list->length] = keybinding;
++list->length;
}
return 0;
}
struct keybinding_list *
keybinding_list_init(void) {
struct keybinding_list *list = malloc(sizeof(struct keybinding_list));
list->keybindings = malloc(sizeof(struct keybinding *));
list->capacity = 1;
list->length = 0;
return list;
}
void
keybinding_list_free(struct keybinding_list *list) {
if(!list) {
return;
}
for(unsigned int i = 0; i < list->length; ++i) {
keybinding_free(list->keybindings[i], true);
}
free(list->keybindings);
free(list);
}
// Returns whether x is between a and b (a exclusive, b exclusive) where
// a<b
bool
is_between_strict(int a, int b, int x) {
return a < x && x < b;
}
struct cg_tile *
find_right_tile(const struct cg_tile *tile) {
struct cg_tile *it = tile->next;
int center = tile->tile.y + tile->tile.height / 2;
while(it != tile) {
if(it->tile.x == tile->tile.x + tile->tile.width) {
if(is_between_strict(it->tile.y, it->tile.y + it->tile.height,
center) ||
it->tile.y + it->tile.height == center) {
return it;
}
}
it = it->next;
}
return NULL;
}
struct cg_tile *
find_left_tile(const struct cg_tile *tile) {
struct cg_tile *it = tile->next;
int center = tile->tile.y + tile->tile.height / 2;
while(it != tile) {
if(it->tile.x + it->tile.width == tile->tile.x) {
if(is_between_strict(it->tile.y, it->tile.y + it->tile.height,
center) ||
it->tile.y + it->tile.height == center) {
return it;
}
}
it = it->next;
}
return NULL;
}
struct cg_tile *
find_top_tile(const struct cg_tile *tile) {
struct cg_tile *it = tile->next;
int center = tile->tile.x + tile->tile.width / 2;
while(it != tile) {
if(it->tile.y + it->tile.height == tile->tile.y) {
if(is_between_strict(it->tile.x, it->tile.x + it->tile.width,
center) ||
it->tile.x + it->tile.width == center) {
return it;
}
}
it = it->next;
}
return NULL;
}
struct cg_tile *
find_bottom_tile(const struct cg_tile *tile) {
struct cg_tile *it = tile->next;
int center = tile->tile.x + tile->tile.width / 2;
while(it != tile) {
if(it->tile.y == tile->tile.y + tile->tile.height) {
if(is_between_strict(it->tile.x, it->tile.x + it->tile.width,
center) ||
it->tile.x + it->tile.width == center) {
return it;
}
}
it = it->next;
}
return NULL;
}
void
swap_tile(struct cg_tile *tile,
struct cg_tile *(*find_tile)(const struct cg_tile *)) {
struct cg_tile *swap_tile = find_tile(tile);
struct cg_server *server = tile->workspace->server;
if(swap_tile == NULL || swap_tile == tile) {
return;
}
struct cg_view *tmp_view = tile->view;
struct cg_view *tmp_swap_view = swap_tile->view;
workspace_tile_update_view(tile, NULL);
workspace_tile_update_view(swap_tile, tmp_view);
workspace_tile_update_view(tile, tmp_swap_view);
workspace_focus_tile(
server->curr_output->workspaces[server->curr_output->curr_workspace],
swap_tile);
seat_set_focus(server->seat, swap_tile->view);
ipc_send_event(
tile->workspace->output->server,
"{\"event_name\":\"swap_tile\",\"tile_id\":%d,\"swap_"
"tile_id\":%d,\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
tile->id, swap_tile->id, tile->workspace->num + 1,
tile->workspace->output->name, output_get_num(tile->workspace->output));
}
void
swap_tile_left(struct cg_tile *tile) {
swap_tile(tile, find_left_tile);
}
void
swap_tile_right(struct cg_tile *tile) {
swap_tile(tile, find_right_tile);
}
void
swap_tile_top(struct cg_tile *tile) {
swap_tile(tile, find_top_tile);
}
void
swap_tile_bottom(struct cg_tile *tile) {
swap_tile(tile, find_bottom_tile);
}
void
focus_tile(struct cg_tile *tile,
struct cg_tile *(*find_tile)(const struct cg_tile *tile)) {
struct cg_tile *new_tile = find_tile(tile);
if(new_tile == NULL) {
return;
}
struct cg_server *server = new_tile->workspace->server;
workspace_focus_tile(tile->workspace, new_tile);
seat_set_focus(server->seat, new_tile->view);
}
void
focus_tile_left(struct cg_tile *tile) {
focus_tile(tile, find_left_tile);
}
void
focus_tile_right(struct cg_tile *tile) {
focus_tile(tile, find_right_tile);
}
void
focus_tile_top(struct cg_tile *tile) {
focus_tile(tile, find_top_tile);
}
void
focus_tile_bottom(struct cg_tile *tile) {
focus_tile(tile, find_bottom_tile);
}
int
get_compl_coord(struct cg_tile *tile, int *(*get_coord)(struct cg_tile *tile)) {
return tile->tile.x + tile->tile.y - *get_coord(tile);
}
int
get_compl_dim(struct cg_tile *tile, int *(*get_dim)(struct cg_tile *tile)) {
return tile->tile.width + tile->tile.height - *get_dim(tile);
}
bool
intervalls_intersect(int x1, int x2, int y1, int y2) {
return y2 > x1 && y1 < x2;
}
bool
resize_allowed(struct cg_tile *tile, const struct cg_tile *parent,
int coord_offset, int dim_offset,
int *(*get_coord)(struct cg_tile *tile),
int *(*get_dim)(struct cg_tile *tile), struct cg_tile *orig) {
if(coord_offset == 0 && dim_offset == 0) {
return true;
} else if(*get_dim(tile) - coord_offset + dim_offset <= 0) {
return false;
}
for(struct cg_tile *it = tile->next; it != tile && it != NULL;
it = it->next) {
if(it == parent || it == orig) {
continue;
}
if(intervalls_intersect(
get_compl_coord(tile, get_coord),
get_compl_coord(tile, get_coord) + get_compl_dim(tile, get_dim),
get_compl_coord(it, get_coord),
get_compl_coord(it, get_coord) + get_compl_dim(it, get_dim))) {
if(*get_coord(it) == *get_coord(tile) + *get_dim(tile)) {
if(!resize_allowed(it, tile, dim_offset + coord_offset,
-dim_offset - coord_offset, get_coord,
get_dim, orig)) {
return false;
}
} else if(*get_coord(it) + *get_dim(it) == *get_coord(tile)) {
if(!resize_allowed(it, tile, 0, coord_offset, get_coord,
get_dim, orig)) {
return false;
}
}
}
}
return true;
}
void
resize(struct cg_tile *tile, const struct cg_tile *parent, int coord_offset,
int dim_offset, int *(*get_coord)(struct cg_tile *tile),
int *(*get_dim)(struct cg_tile *tile), struct cg_tile *orig) {
if(coord_offset == 0 && dim_offset == 0) {
return;
}
for(struct cg_tile *it = tile->next; it != tile && it != NULL;
it = it->next) {
if(it == parent || it == orig) {
continue;
}
if(intervalls_intersect(
get_compl_coord(tile, get_coord),
get_compl_coord(tile, get_coord) + get_compl_dim(tile, get_dim),
get_compl_coord(it, get_coord),
get_compl_coord(it, get_coord) + get_compl_dim(it, get_dim))) {
if(*get_coord(it) == *get_coord(tile) + *get_dim(tile)) {
resize(it, tile, dim_offset + coord_offset,
-dim_offset - coord_offset, get_coord, get_dim, orig);
} else if(*get_coord(it) + *get_dim(it) == *get_coord(tile)) {
resize(it, tile, 0, coord_offset, get_coord, get_dim, orig);
}
}
}
int old_x = tile->tile.x, old_y = tile->tile.y,
old_height = tile->tile.height, old_width = tile->tile.width;
*get_coord(tile) += coord_offset;
*get_dim(tile) += dim_offset;
if(tile->view != NULL) {
view_maximize(tile->view, tile);
}
ipc_send_event(tile->workspace->output->server,
"{\"event_name\":\"resize_tile\",\"tile_id\":%d,\"old_"
"dims\":\"[%d,%d,%d,%d]\",\"new_dims\":\"[%d,%d,%d,%d]\","
"\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
tile->id, old_x, old_y, old_height, old_width, tile->tile.x,
tile->tile.y, tile->tile.height, tile->tile.width,
tile->workspace->num + 1, tile->workspace->output->name,
output_get_num(tile->workspace->output));
}
int *
get_width(struct cg_tile *tile) {
return &tile->tile.width;
}
int *
get_height(struct cg_tile *tile) {
return &tile->tile.height;
}
int *
get_x(struct cg_tile *tile) {
return &tile->tile.x;
}
int *
get_y(struct cg_tile *tile) {
return &tile->tile.y;
}
bool
resize_allowed_horizontal(struct cg_tile *tile, struct cg_tile *parent,
int x_offset, int width_offset) {
return resize_allowed(tile, parent, x_offset, width_offset, get_x,
get_width, tile);
}
bool
resize_allowed_vertical(struct cg_tile *tile, struct cg_tile *parent,
int y_offset, int height_offset) {
return resize_allowed(tile, parent, y_offset, height_offset, get_y,
get_height, tile);
}
void
resize_horizontal(struct cg_tile *tile, struct cg_tile *parent, int x_offset,
int width_offset) {
resize(tile, parent, x_offset, width_offset, get_x, get_width, tile);
}
void
resize_vertical(struct cg_tile *tile, struct cg_tile *parent, int y_offset,
int height_offset) {
resize(tile, parent, y_offset, height_offset, get_y, get_height, tile);
}
/* hpixs: positiv -> right, negative -> left; vpixs: positiv -> down, negative
* -> up */
void
resize_tile(struct cg_server *server, int hpixs, int vpixs) {
struct cg_output *output = server->curr_output;
struct cg_tile *focused =
output->workspaces[output->curr_workspace]->focused_tile;
/* First do the horizontal adjustment */
if(hpixs != 0 &&
focused->tile.width < output_get_layout_box(output).width &&
is_between_strict(0, output_get_layout_box(output).width,
focused->tile.width + hpixs)) {
int x_offset = 0;
/* In case we are on the total right, move the left edge of the tile */
if(focused->tile.x + focused->tile.width ==
output_get_layout_box(output).width) {
x_offset = -hpixs;
}
bool resize_allowed =
resize_allowed_horizontal(focused, NULL, x_offset, hpixs);
if(resize_allowed) {
resize_horizontal(focused, NULL, x_offset, hpixs);
}
}
/* Repeat for vertical */
if(vpixs != 0 &&
focused->tile.height < output_get_layout_box(output).height &&
is_between_strict(0, output_get_layout_box(output).height,
focused->tile.height + vpixs)) {
int y_offset = 0;
if(focused->tile.y + focused->tile.height ==
output_get_layout_box(output).height) {
y_offset = -vpixs;
}
bool resize_allowed =
resize_allowed_vertical(focused, NULL, y_offset, vpixs);
if(resize_allowed) {
resize_vertical(focused, NULL, y_offset, vpixs);
}
}
}
void
keybinding_workspace_fullscreen(struct cg_server *server) {
output_make_workspace_fullscreen(server->curr_output,
server->curr_output->curr_workspace);
struct cg_output *output = server->curr_output;
ipc_send_event(server,
"{\"event_name\":\"fullscreen\",\"tile_id\":%d,"
"\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
output->workspaces[output->curr_workspace]->focused_tile->id,
output->workspaces[output->curr_workspace]->num + 1,
output->name, output_get_num(output));
}
// Switch to a differerent virtual terminal
static int
keybinding_switch_vt(struct cg_server *server, unsigned int vt) {
if(wlr_backend_is_multi(server->backend)) {
if(server->session) {
wlr_session_change_vt(server->session, vt);
}
return 0;
}
return -1;
}
/* Split screen (vertical or horizontal)
* Important: Do not attempt to perform mathematical simplifications in this
* function without taking rounding errors into account. */
static void
keybinding_split_output(struct cg_output *output, bool vertical) {
struct cg_view *original_view = seat_get_focus(output->server->seat);
struct cg_workspace *curr_workspace =
output->workspaces[output->curr_workspace];
int32_t width = curr_workspace->focused_tile->tile.width;
int32_t height = curr_workspace->focused_tile->tile.height;
int32_t x = curr_workspace->focused_tile->tile.x;
int32_t y = curr_workspace->focused_tile->tile.y;
int32_t new_width, new_height;
if(vertical) {
new_width = width / 2;
new_height = height;
} else {
new_width = width;
new_height = height / 2;
}
if(new_width < 1 || new_height < 1) {
return;
}
struct cg_view *next_view = NULL;
struct cg_view *it;
wl_list_for_each(it, &output->workspaces[output->curr_workspace]->views,
link) {
if(!view_is_visible(it) && original_view != it) {
next_view = it;
break;
}
}
int32_t new_x, new_y;
if(vertical) {
new_x = x + new_width;
new_y = y;
} else {
new_x = x;
new_y = y + new_height;
}
struct cg_tile *new_tile = calloc(1, sizeof(struct cg_tile));
if(!new_tile) {
wlr_log(WLR_ERROR, "Failed to allocate new tile for splitting");
return;
}
new_tile->id = output->server->tiles_curr_id;
++output->server->tiles_curr_id;
new_tile->tile.x = new_x;
new_tile->tile.y = new_y;
new_tile->tile.width = x + width - new_x;
new_tile->tile.height = y + height - new_y;
new_tile->prev = curr_workspace->focused_tile;
new_tile->next = curr_workspace->focused_tile->next;
workspace_tile_update_view(new_tile, next_view);
new_tile->workspace = curr_workspace;
curr_workspace->focused_tile->next->prev = new_tile;
curr_workspace->focused_tile->next = new_tile;
curr_workspace->focused_tile->tile.width = new_width;
curr_workspace->focused_tile->tile.height = new_height;
workspace_focus_tile(curr_workspace, curr_workspace->focused_tile);
if(next_view != NULL) {
view_maximize(next_view, new_tile);
}
if(original_view != NULL) {
view_maximize(original_view, curr_workspace->focused_tile);
}
ipc_send_event(
output->server,
"{\"event_name\":\"split\",\"tile_id\":%d,\"new_tile_id\":%d,"
"\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d,\"vertical\":%d}",
curr_workspace->focused_tile->id, new_tile->id, curr_workspace->num + 1,
curr_workspace->output->name, output_get_num(curr_workspace->output),
vertical);
}
static void
keybinding_close_view(struct cg_view *view) {
if(view == NULL) {
return;
}
struct cg_output *outp = view->workspace->output;
uint32_t view_id = view->id;
uint32_t view_pid = view->impl->get_pid(view);
uint32_t tile_id = view->id;
uint32_t ws = view->workspace->num;
view->impl->close(view);
ipc_send_event(
outp->server,
"{\"event_name\":\"close\",\"view_id\":%d,\"view_pid\":%d,\"tile_id\":"
"%d,\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
view_id, view_pid, tile_id, ws + 1, outp->name, output_get_num(outp));
}
static void
keybinding_split_vertical(struct cg_server *server) {
keybinding_split_output(server->curr_output, true);
}
static void
keybinding_split_horizontal(struct cg_server *server) {
keybinding_split_output(server->curr_output, false);
}
static void
into_process(const char *command) {
execlp("sh", "sh", "-c", command, (char *)NULL);
_exit(1);
}
void
set_output(struct cg_server *server, struct cg_output *output) {
server->curr_output = output;
seat_set_focus(
server->seat,
server->curr_output->workspaces[server->curr_output->curr_workspace]
->focused_tile->view);
message_printf(server->curr_output, "Current Output");
}
void
keybinding_cycle_outputs(struct cg_server *server, bool reverse,
bool trigger_event) {
struct cg_output *output = NULL;
struct cg_output *old_output = server->curr_output;
if(reverse) {
output = wl_container_of(server->curr_output->link.prev,
server->curr_output, link);
} else {
output = wl_container_of(server->curr_output->link.next,
server->curr_output, link);
}
if(&output->link == &server->outputs) {
if(reverse) {
output = wl_container_of(output->link.prev, output, link);
} else {
output = wl_container_of(output->link.next, output, link);
}
}
set_output(server, output);
if(trigger_event) {
ipc_send_event(
output->server,
"{\"event_name\":\"cycle_outputs\",\"old_output\":\"%s\",\"old_"
"output_id\":%d,"
"\"new_output\":\"%s\",\"new_output_id\":%d,\"reverse\":%d}",
old_output->name, output_get_num(old_output), output->name,
output_get_num(output), reverse);
}
}
/* Cycle through views, whereby the workspace does not change */
void
keybinding_cycle_views(struct cg_server *server, bool reverse, bool ipc) {
struct cg_workspace *curr_workspace =
server->curr_output->workspaces[server->curr_output->curr_workspace];
struct cg_view *current_view = curr_workspace->focused_tile->view;
struct cg_view *it_view, *next_view = NULL;
if(reverse) {
wl_list_for_each(it_view, &curr_workspace->views, link) {
if(!view_is_visible(it_view)) {
next_view = it_view;
break;
}
}
} else {
wl_list_for_each_reverse(it_view, &curr_workspace->views, link) {
if(!view_is_visible(it_view)) {
next_view = it_view;
break;
}
}
}
if(next_view == NULL) {
return;
}
seat_set_focus(server->seat, next_view);
if(ipc) {
int curr_id = -1;
int curr_pid = -1;
if(current_view != NULL &&
current_view->link.next != curr_workspace->views.next) {
curr_id = current_view->id;
curr_pid = current_view->impl->get_pid(current_view);
}
ipc_send_event(
curr_workspace->output->server,
"{\"event_name\":\"cycle_views\",\"old_view_id\":%d,\"old_view_"
"pid\":%d,"
"\"new_view_id\":%d,\"new_view_pid\":%d,\"tile_id\":%d,"
"\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
curr_id, curr_pid, next_view == NULL ? -1 : (int)next_view->id,
next_view == NULL ? -1 : (int)next_view->impl->get_pid(next_view),
next_view->tile->id, curr_workspace->num + 1,
curr_workspace->output->name,
output_get_num(curr_workspace->output));
}
}
void
keybinding_focus_tile(struct cg_server *server, uint32_t tile_id) {
struct cg_output *output = server->curr_output;
struct cg_workspace *workspace = output->workspaces[output->curr_workspace];
struct cg_tile *old_tile = workspace->focused_tile;
bool first = true;
for(struct cg_tile *tile = workspace->focused_tile;
first || tile != workspace->focused_tile; tile = tile->next) {
first = false;
if(tile->id == tile_id) {
workspace_focus_tile(workspace, tile);
struct cg_view *next_view = workspace->focused_tile->view;
seat_set_focus(server->seat, next_view);
ipc_send_event(
output->server,
"{\"event_name\":\"focus_tile\",\"old_tile_id\":%d,\"new_tile_"
"id\":%d,\"workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
old_tile->id, workspace->focused_tile->id, workspace->num + 1,
output->name, output_get_num(output));
break;
}
}
}
void
keybinding_cycle_tiles(struct cg_server *server, bool reverse) {
struct cg_output *output = server->curr_output;
struct cg_workspace *workspace = output->workspaces[output->curr_workspace];
if(reverse) {
keybinding_focus_tile(server, workspace->focused_tile->prev->id);
} else {
keybinding_focus_tile(server, workspace->focused_tile->next->id);
}
}
int
keybinding_switch_ws(struct cg_server *server, uint32_t ws) {
if(ws >= server->nws) {
wlr_log(WLR_ERROR,
"Requested workspace %u, but only have %u workspaces.", ws + 1,
server->nws);
return -1;
}
struct cg_output *output = server->curr_output;
uint32_t old_ws = server->curr_output->curr_workspace;
workspace_focus(output, ws);
seat_set_focus(server->seat,
server->curr_output->workspaces[ws]->focused_tile->view);
message_printf(server->curr_output, "Workspace %d", ws + 1);
ipc_send_event(output->server,
"{\"event_name\":\"switch_ws\",\"old_workspace\":%d,"
"\"new_workspace\":%d,\"output\":\"%s\",\"output_id\":%d}",
old_ws + 1, ws + 1, output->name, output_get_num(output));
return 0;
}
void
keybinding_show_time(struct cg_server *server) {
char *msg, *tmp;
time_t timep;
timep = time(NULL);
tmp = ctime(&timep);
msg = strdup(tmp);
msg[strcspn(msg, "\n")] = '\0'; /* Remove the newline */
message_printf(server->curr_output, "%s", msg);
free(msg);
}
struct dyn_str {
uint32_t len;
uint32_t cur_pos;
char **str_arr;
};
/*Note that inp is in an invalid state after calling the function * and should
* no longer be used.*/
char *
dyn_str_to_str(struct dyn_str *inp) {
char *outp = calloc(inp->len + 1, sizeof(char));
if(outp == NULL) {
return NULL;
}
outp[inp->len] = '\0';
uint32_t tmp_pos = 0;
for(uint32_t i = 0; i < inp->cur_pos; ++i) {
strcat(outp + tmp_pos, inp->str_arr[i]);
tmp_pos += strlen(inp->str_arr[i]);
free(inp->str_arr[i]);
}
free(inp->str_arr);
return outp;
}
int
print_str(struct dyn_str *outp, const char *fmt, ...) {
va_list args;
va_start(args, fmt);
char *ret = malloc_vsprintf_va_list(fmt, args);
if(ret == NULL) {
return -1;
}
outp->str_arr[outp->cur_pos] = ret;
++outp->cur_pos;
outp->len += strlen(ret);
return 0;
}
char *
print_message_conf(struct cg_message_config *config) {
struct dyn_str outp_str;
outp_str.len = 0;
outp_str.cur_pos = 0;
uint32_t nmemb = 8;
outp_str.str_arr = calloc(nmemb, sizeof(char *));
print_str(&outp_str, "\"message_config\": {");
print_str(&outp_str, "\"font\": \"%s\",\n", config->font);
print_str(&outp_str, "\"display_time\": %d,\n", config->display_time);
print_str(&outp_str, "\"bg_color\": [%f,%f,%f,%f],\n", config->bg_color[0],
config->bg_color[1], config->bg_color[2], config->bg_color[3]);
print_str(&outp_str, "\"fg_color\": [%f,%f,%f,%f],\n", config->fg_color[0],
config->fg_color[1], config->fg_color[2], config->fg_color[3]);
print_str(&outp_str, "\"enabled\": %d,\n", config->enabled == 1);
switch(config->anchor) {
case CG_MESSAGE_TOP_LEFT:
print_str(&outp_str, "\"anchor\": \"top_left\"\n", config->font);
break;
case CG_MESSAGE_TOP_CENTER:
print_str(&outp_str, "\"anchor\": \"top_center\"\n", config->font);
break;
case CG_MESSAGE_TOP_RIGHT:
print_str(&outp_str, "\"anchor\": \"top_right\"\n", config->font);
break;
case CG_MESSAGE_BOTTOM_LEFT:
print_str(&outp_str, "\"anchor\": \"bottom_left\"\n", config->font);
break;
case CG_MESSAGE_BOTTOM_CENTER:
print_str(&outp_str, "\"anchor\": \"bottom_center\"\n", config->font);
break;
case CG_MESSAGE_BOTTOM_RIGHT:
print_str(&outp_str, "\"anchor\": \"bottom_right\"\n", config->font);
break;
case CG_MESSAGE_CENTER:
print_str(&outp_str, "\"anchor\": \"center\"\n", config->font);
break;
case CG_MESSAGE_NOPT: // This should actually never occur
print_str(&outp_str, "\"anchor\": \"no_op\"\n", config->font);
break;
}
print_str(&outp_str, "}");
return dyn_str_to_str(&outp_str);
}
void
print_modes(struct dyn_str *str, char **modes) {
uint32_t len = 0;
char **tmp = modes;
uint32_t nmemb = 0;
while(*tmp != NULL) {
len += strlen(*tmp);
++nmemb;
++tmp;
}
if(nmemb == 0) {
wlr_log(WLR_ERROR,
"This is a bug: Cagebreak has no valid modes. This should not "
"occur, since default modes are defined on startup.");
return;
}
/* We are assuming here that we have at least one mode, which is given by
* the initialization of cagebreak */
char *modes_str = calloc(len + 3 * (nmemb - 1) + 1, sizeof(char));
modes_str[len + nmemb - 1] = '\0';
uint32_t tmp_pos = 0;
for(uint32_t i = 0; i < nmemb; ++i) {
if(i != 0) {
strcat(modes_str + tmp_pos, "\",\"");
tmp_pos += 3;
}
strcat(modes_str + tmp_pos, modes[i]);
tmp_pos += strlen(modes[i]);
}
print_str(str, "\"modes\":[\"%s\"],\n", modes_str);
free(modes_str);
}
char *
print_view(struct cg_view *view) {
struct dyn_str outp_str;
outp_str.len = 0;
outp_str.cur_pos = 0;
uint32_t nmemb = 5;
outp_str.str_arr = calloc(nmemb, sizeof(char *));
print_str(&outp_str, "\"id\": %d,\n", view->id);
print_str(&outp_str, "\"pid\": %d,\n", view->impl->get_pid(view));
if(view->server->bs == true) {
char *title_str = view->impl->get_title(view);
print_str(&outp_str, "\"title\": \"%s\",\n",
title_str == NULL ? "" : title_str);
}
print_str(&outp_str, "\"coords\": {\"x\":%d,\"y\":%d},\n", view->ox,
view->oy);
#if CG_HAS_XWAYLAND
print_str(&outp_str, "\"type\": \"%s\"\n",
view->type == CG_XWAYLAND_VIEW ? "xwayland" : "xdg");
#else
print_str(&outp_str, "\"type\": \"xdg\"\n");
#endif
return dyn_str_to_str(&outp_str);
}
char *
print_tile(struct cg_tile *tile) {
struct dyn_str outp_str;
outp_str.len = 0;
outp_str.cur_pos = 0;
uint32_t nmemb = 4;
outp_str.str_arr = calloc(nmemb, sizeof(char *));
print_str(&outp_str, "\"id\": %d,\n", tile->id);
print_str(&outp_str, "\"coords\": {\"x\":%d,\"y\":%d},\n", tile->tile.x,
tile->tile.y);
print_str(&outp_str, "\"size\": {\"width\":%d,\"height\":%d},\n",
tile->tile.width, tile->tile.height);
print_str(&outp_str, "\"view_id\": %d\n",
tile->view == NULL ? -1 : (int)tile->view->id);
return dyn_str_to_str(&outp_str);
}
char *
print_views(struct cg_workspace *ws) {
struct dyn_str outp_str;
outp_str.len = 0;
outp_str.cur_pos = 0;
uint32_t nviews = wl_list_length(&ws->views);
if(nviews == 0) {
return strdup("{}");
}
outp_str.str_arr = calloc(2 * nviews - 1, sizeof(char *));
struct cg_view *it;
uint32_t count = 0;
wl_list_for_each(it, &ws->views, link) {
if(count != 0) {
print_str(&outp_str, ",");
}
++count;
char *view_str = print_view(it);
if(view_str != NULL) {
print_str(&outp_str, "{\n%s\n}", view_str);
free(view_str);
}
}
return dyn_str_to_str(&outp_str);
}
char *
print_tiles(struct cg_workspace *ws) {
struct dyn_str outp_str;
outp_str.len = 0;
outp_str.cur_pos = 0;
uint32_t ntiles = 0;
bool first = true;
for(struct cg_tile *tile = ws->focused_tile;
first || tile != ws->focused_tile; tile = tile->next) {
first = false;
++ntiles;
}
if(ntiles == 0) {