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picom/src/dbus.c

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// SPDX-License-Identifier: MIT
/*
* Compton - a compositor for X11
*
* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
*
* Copyright (c) 2011-2013, Christopher Jeffrey
* See LICENSE-mit for more information.
*
*/
#include <X11/Xlib.h>
#include <ctype.h>
#include <dbus/dbus.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <xcb/xcb.h>
#include "common.h"
#include "compiler.h"
#include "config.h"
#include "list.h"
#include "log.h"
#include "string_utils.h"
#include "transition.h"
#include "types.h"
#include "uthash_extra.h"
#include "utils.h"
#include "win.h"
#include "win_defs.h"
#include "wm.h"
#include "dbus.h"
struct cdbus_data {
/// Mainloop
struct ev_loop *loop;
/// DBus connection.
DBusConnection *dbus_conn;
/// DBus service name.
char *dbus_service;
};
// Window type
typedef uint32_t cdbus_window_t;
#define CDBUS_TYPE_WINDOW DBUS_TYPE_UINT32
#define CDBUS_TYPE_WINDOW_STR DBUS_TYPE_UINT32_AS_STRING
typedef uint32_t cdbus_enum_t;
#define CDBUS_TYPE_ENUM DBUS_TYPE_UINT32
#define CDBUS_TYPE_ENUM_STR DBUS_TYPE_UINT32_AS_STRING
#define CDBUS_SERVICE_NAME "com.github.chjj.compton"
#define CDBUS_INTERFACE_NAME CDBUS_SERVICE_NAME
#define CDBUS_OBJECT_NAME "/com/github/chjj/compton"
#define CDBUS_ERROR_PREFIX CDBUS_INTERFACE_NAME ".error"
#define CDBUS_ERROR_UNKNOWN CDBUS_ERROR_PREFIX ".unknown"
#define CDBUS_ERROR_UNKNOWN_S "Well, I don't know what happened. Do you?"
#define CDBUS_ERROR_BADMSG CDBUS_ERROR_PREFIX ".bad_message"
#define CDBUS_ERROR_BADMSG_S \
"Unrecognized command. Beware compton " \
"cannot make you a sandwich."
#define CDBUS_ERROR_BADARG CDBUS_ERROR_PREFIX ".bad_argument"
#define CDBUS_ERROR_BADARG_S "Failed to parse argument %d: %s"
#define CDBUS_ERROR_BADWIN CDBUS_ERROR_PREFIX ".bad_window"
#define CDBUS_ERROR_BADWIN_S "Requested window %#010x not found."
#define CDBUS_ERROR_BADTGT CDBUS_ERROR_PREFIX ".bad_target"
#define CDBUS_ERROR_BADTGT_S "Target \"%s\" not found."
#define CDBUS_ERROR_FORBIDDEN CDBUS_ERROR_PREFIX ".forbidden"
#define CDBUS_ERROR_FORBIDDEN_S "Incorrect password, access denied."
#define CDBUS_ERROR_CUSTOM CDBUS_ERROR_PREFIX ".custom"
#define CDBUS_ERROR_CUSTOM_S "%s"
#define cdbus_reply_err(conn, srcmsg, err_name, err_format, ...) \
cdbus_reply_errm(conn, dbus_message_new_error_printf( \
(srcmsg), (err_name), (err_format), ##__VA_ARGS__))
#define PICOM_WINDOW_INTERFACE "picom.Window"
#define PICOM_COMPOSITOR_INTERFACE "picom.Compositor"
static DBusHandlerResult cdbus_process(DBusConnection *conn, DBusMessage *m, void *);
static DBusHandlerResult cdbus_process_windows(DBusConnection *c, DBusMessage *msg, void *ud);
static dbus_bool_t cdbus_callback_add_timeout(DBusTimeout *timeout, void *data);
static void cdbus_callback_remove_timeout(DBusTimeout *timeout, void *data);
static void cdbus_callback_timeout_toggled(DBusTimeout *timeout, void *data);
static dbus_bool_t cdbus_callback_add_watch(DBusWatch *watch, void *data);
static void cdbus_callback_remove_watch(DBusWatch *watch, void *data);
static void cdbus_callback_watch_toggled(DBusWatch *watch, void *data);
/**
* Initialize D-Bus connection.
*/
struct cdbus_data *cdbus_init(session_t *ps, const char *uniq) {
auto cd = cmalloc(struct cdbus_data);
cd->dbus_service = NULL;
DBusError err = {};
// Initialize
dbus_error_init(&err);
// Connect to D-Bus
// Use dbus_bus_get_private() so we can fully recycle it ourselves
cd->dbus_conn = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
if (dbus_error_is_set(&err)) {
log_error("D-Bus connection failed.");
goto fail;
}
if (!cd->dbus_conn) {
log_error("D-Bus connection failed for unknown reason.");
goto fail;
}
// Avoid exiting on disconnect
dbus_connection_set_exit_on_disconnect(cd->dbus_conn, false);
// Request service name
{
// Build service name
size_t service_len = strlen(CDBUS_SERVICE_NAME) + strlen(uniq) + 2;
char *service = ccalloc(service_len, char);
snprintf(service, service_len, "%s.%s", CDBUS_SERVICE_NAME, uniq);
// Make a valid dbus name by converting non alphanumeric characters to
// underscore
char *tmp = service + strlen(CDBUS_SERVICE_NAME) + 1;
while (*tmp) {
if (!isalnum((unsigned char)*tmp)) {
*tmp = '_';
}
tmp++;
}
cd->dbus_service = service;
// Request for the name
int ret = dbus_bus_request_name(cd->dbus_conn, service,
DBUS_NAME_FLAG_DO_NOT_QUEUE, &err);
if (dbus_error_is_set(&err)) {
log_error("Failed to obtain D-Bus name.");
goto fail;
}
if (ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER &&
ret != DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER) {
log_error("Failed to become the primary owner of requested D-Bus "
"name (%d).",
ret);
goto fail;
}
}
// Add watch handlers
cd->loop = ps->loop;
if (!dbus_connection_set_watch_functions(cd->dbus_conn, cdbus_callback_add_watch,
cdbus_callback_remove_watch,
cdbus_callback_watch_toggled, cd, NULL)) {
log_error("Failed to add D-Bus watch functions.");
goto fail;
}
// Add timeout handlers
if (!dbus_connection_set_timeout_functions(
cd->dbus_conn, cdbus_callback_add_timeout, cdbus_callback_remove_timeout,
cdbus_callback_timeout_toggled, cd, NULL)) {
log_error("Failed to add D-Bus timeout functions.");
goto fail;
}
// Add match
dbus_bus_add_match(cd->dbus_conn,
"type='method_call',interface='" CDBUS_INTERFACE_NAME "'", &err);
if (dbus_error_is_set(&err)) {
log_error("Failed to add D-Bus match.");
goto fail;
}
dbus_connection_register_object_path(
cd->dbus_conn, CDBUS_OBJECT_NAME,
(DBusObjectPathVTable[]){{NULL, cdbus_process}}, ps);
dbus_connection_register_fallback(
cd->dbus_conn, CDBUS_OBJECT_NAME "/windows",
(DBusObjectPathVTable[]){{NULL, cdbus_process_windows}}, ps);
return cd;
fail:
if (dbus_error_is_set(&err)) {
log_error("D-Bus error %s: %s", err.name, err.message);
dbus_error_free(&err);
}
free(cd->dbus_service);
free(cd);
return NULL;
}
/**
* Destroy D-Bus connection.
*/
void cdbus_destroy(struct cdbus_data *cd) {
if (cd->dbus_conn) {
// Release DBus name firstly
if (cd->dbus_service) {
DBusError err = {};
dbus_error_init(&err);
dbus_bus_release_name(cd->dbus_conn, cd->dbus_service, &err);
if (dbus_error_is_set(&err)) {
log_error("Failed to release DBus name (%s).", err.message);
dbus_error_free(&err);
}
free(cd->dbus_service);
}
// Close and unref the connection
dbus_connection_close(cd->dbus_conn);
dbus_connection_unref(cd->dbus_conn);
}
free(cd);
}
/** @name DBusTimeout handling
*/
///@{
typedef struct ev_dbus_timer {
ev_timer w;
DBusTimeout *t;
} ev_dbus_timer;
/**
* Callback for handling a D-Bus timeout.
*/
static void
cdbus_callback_handle_timeout(EV_P attr_unused, ev_timer *w, int revents attr_unused) {
ev_dbus_timer *t = (void *)w;
dbus_timeout_handle(t->t);
}
/**
* Callback for adding D-Bus timeout.
*/
static dbus_bool_t cdbus_callback_add_timeout(DBusTimeout *timeout, void *data) {
struct cdbus_data *cd = data;
auto t = ccalloc(1, ev_dbus_timer);
double i = dbus_timeout_get_interval(timeout) / 1000.0;
ev_timer_init(&t->w, cdbus_callback_handle_timeout, i, i);
t->t = timeout;
dbus_timeout_set_data(timeout, t, NULL);
if (dbus_timeout_get_enabled(timeout)) {
ev_timer_start(cd->loop, &t->w);
}
return true;
}
/**
* Callback for removing D-Bus timeout.
*/
static void cdbus_callback_remove_timeout(DBusTimeout *timeout, void *data) {
struct cdbus_data *cd = data;
ev_dbus_timer *t = dbus_timeout_get_data(timeout);
assert(t);
ev_timer_stop(cd->loop, &t->w);
free(t);
}
/**
* Callback for toggling a D-Bus timeout.
*/
static void cdbus_callback_timeout_toggled(DBusTimeout *timeout, void *data) {
struct cdbus_data *cd = data;
ev_dbus_timer *t = dbus_timeout_get_data(timeout);
assert(t);
ev_timer_stop(cd->loop, &t->w);
if (dbus_timeout_get_enabled(timeout)) {
double i = dbus_timeout_get_interval(timeout) / 1000.0;
ev_timer_set(&t->w, i, i);
ev_timer_start(cd->loop, &t->w);
}
}
///@}
/** @name DBusWatch handling
*/
///@{
typedef struct ev_dbus_io {
ev_io w;
struct cdbus_data *cd;
DBusWatch *dw;
} ev_dbus_io;
void cdbus_io_callback(EV_P attr_unused, ev_io *w, int revents) {
ev_dbus_io *dw = (void *)w;
DBusWatchFlags flags = 0;
if (revents & EV_READ) {
flags |= DBUS_WATCH_READABLE;
}
if (revents & EV_WRITE) {
flags |= DBUS_WATCH_WRITABLE;
}
dbus_watch_handle(dw->dw, flags);
while (dbus_connection_dispatch(dw->cd->dbus_conn) != DBUS_DISPATCH_COMPLETE)
;
}
/**
* Determine the poll condition of a DBusWatch.
*/
static inline int cdbus_get_watch_cond(DBusWatch *watch) {
const unsigned flags = dbus_watch_get_flags(watch);
int condition = 0;
if (flags & DBUS_WATCH_READABLE) {
condition |= EV_READ;
}
if (flags & DBUS_WATCH_WRITABLE) {
condition |= EV_WRITE;
}
return condition;
}
/**
* Callback for adding D-Bus watch.
*/
static dbus_bool_t cdbus_callback_add_watch(DBusWatch *watch, void *data) {
struct cdbus_data *cd = data;
auto w = ccalloc(1, ev_dbus_io);
w->dw = watch;
w->cd = cd;
ev_io_init(&w->w, cdbus_io_callback, dbus_watch_get_unix_fd(watch),
cdbus_get_watch_cond(watch));
// Leave disabled watches alone
if (dbus_watch_get_enabled(watch)) {
ev_io_start(cd->loop, &w->w);
}
dbus_watch_set_data(watch, w, NULL);
// Always return true
return true;
}
/**
* Callback for removing D-Bus watch.
*/
static void cdbus_callback_remove_watch(DBusWatch *watch, void *data) {
struct cdbus_data *cd = data;
ev_dbus_io *w = dbus_watch_get_data(watch);
ev_io_stop(cd->loop, &w->w);
free(w);
}
/**
* Callback for toggling D-Bus watch status.
*/
static void cdbus_callback_watch_toggled(DBusWatch *watch, void *data) {
struct cdbus_data *cd = data;
ev_io *w = dbus_watch_get_data(watch);
if (dbus_watch_get_enabled(watch)) {
ev_io_start(cd->loop, w);
} else {
ev_io_stop(cd->loop, w);
}
}
///@}
static bool cdbus_append_boolean(DBusMessage *msg, dbus_bool_t val) {
return dbus_message_append_args(msg, DBUS_TYPE_BOOLEAN, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_int32(DBusMessage *msg, int32_t val) {
return dbus_message_append_args(msg, DBUS_TYPE_INT32, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_uint32(DBusMessage *msg, uint32_t val) {
return dbus_message_append_args(msg, DBUS_TYPE_UINT32, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_double(DBusMessage *msg, double val) {
return dbus_message_append_args(msg, DBUS_TYPE_DOUBLE, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_wid(DBusMessage *msg, xcb_window_t val_) {
cdbus_window_t val = val_;
return dbus_message_append_args(msg, CDBUS_TYPE_WINDOW, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_enum(DBusMessage *msg, cdbus_enum_t val) {
return dbus_message_append_args(msg, CDBUS_TYPE_ENUM, &val, DBUS_TYPE_INVALID);
}
static bool cdbus_append_string(DBusMessage *msg, const char *data) {
const char *str = data ? data : "";
return dbus_message_append_args(msg, DBUS_TYPE_STRING, &str, DBUS_TYPE_INVALID);
}
/// Append a window ID to a D-Bus message as a variant
static bool cdbus_append_wid_variant(DBusMessage *msg, xcb_window_t val_) {
cdbus_window_t val = val_;
DBusMessageIter it, it2;
dbus_message_iter_init_append(msg, &it);
if (!dbus_message_iter_open_container(&it, DBUS_TYPE_VARIANT,
CDBUS_TYPE_WINDOW_STR, &it2)) {
return false;
}
if (!dbus_message_iter_append_basic(&it2, CDBUS_TYPE_WINDOW, &val)) {
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
/// Append a boolean to a D-Bus message as a variant
static bool cdbus_append_bool_variant(DBusMessage *msg, dbus_bool_t val) {
DBusMessageIter it, it2;
dbus_message_iter_init_append(msg, &it);
if (!dbus_message_iter_open_container(&it, DBUS_TYPE_VARIANT,
DBUS_TYPE_BOOLEAN_AS_STRING, &it2)) {
return false;
}
if (!dbus_message_iter_append_basic(&it2, DBUS_TYPE_BOOLEAN, &val)) {
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
/// Append a string to a D-Bus message as a variant
static bool cdbus_append_string_variant(DBusMessage *msg, const char *data) {
const char *str = data ? data : "";
DBusMessageIter it, it2;
dbus_message_iter_init_append(msg, &it);
if (!dbus_message_iter_open_container(&it, DBUS_TYPE_VARIANT,
DBUS_TYPE_STRING_AS_STRING, &it2)) {
return false;
}
if (!dbus_message_iter_append_basic(&it2, DBUS_TYPE_STRING, &str)) {
log_error("Failed to append argument.");
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
static int cdbus_append_wids_callback(struct win *w, void *data) {
DBusMessageIter *iter = data;
cdbus_window_t wid = w->id;
if (!dbus_message_iter_append_basic(iter, CDBUS_TYPE_WINDOW, &wid)) {
return 1;
}
return 0;
}
/// Append all window IDs in the window list of a session to a D-Bus message
static bool cdbus_append_wids(DBusMessage *msg, session_t *ps) {
// Get the number of wids we are to include
unsigned count = wm_num_windows(ps->wm);
if (!count) {
// Nothing to append
return true;
}
DBusMessageIter it, subit;
dbus_message_iter_init_append(msg, &it);
if (!dbus_message_iter_open_container(&it, DBUS_TYPE_ARRAY,
DBUS_TYPE_UINT32_AS_STRING, &subit)) {
log_error("Failed to open container.");
return false;
}
auto result = wm_foreach(ps->wm, cdbus_append_wids_callback, &subit);
if (!dbus_message_iter_close_container(&it, &subit)) {
log_error("Failed to close container.");
return false;
}
if (result != 0) {
log_error("Failed to append argument.");
return false;
}
return true;
}
/**
* Get n-th argument of a D-Bus message.
*
* @param count the position of the argument to get, starting from 0
* @param type libdbus type number of the type
* @param pdest pointer to the target
* @return true if successful, false otherwise.
*/
static bool cdbus_msg_get_arg(DBusMessage *msg, int count, const int type, void *pdest) {
assert(count >= 0);
DBusMessageIter iter = {};
if (!dbus_message_iter_init(msg, &iter)) {
log_error("Message has no argument.");
return false;
}
{
const int oldcount = count;
while (count) {
if (!dbus_message_iter_next(&iter)) {
log_error("Failed to find argument %d.", oldcount);
return false;
}
--count;
}
}
if (type != dbus_message_iter_get_arg_type(&iter)) {
log_error("Argument has incorrect type.");
return false;
}
dbus_message_iter_get_basic(&iter, pdest);
return true;
}
/** @name Message processing
*/
///@{
/**
* Process a list_win D-Bus request.
*/
static DBusHandlerResult
cdbus_process_list_win(session_t *ps, DBusMessage *msg attr_unused, DBusMessage *reply,
DBusError *err attr_unused) {
if (!cdbus_append_wids(reply, ps)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process a win_get D-Bus request.
*/
static DBusHandlerResult
cdbus_process_window_property_get(session_t *ps, DBusMessage *msg, cdbus_window_t wid,
DBusMessage *reply, DBusError *e) {
const char *target = NULL;
const char *interface = NULL;
if (reply == NULL) {
return DBUS_HANDLER_RESULT_HANDLED;
}
if (!dbus_message_get_args(msg, e, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING,
&target, DBUS_TYPE_INVALID)) {
log_debug("Failed to parse argument of \"Get\" (%s).", e->message);
dbus_set_error_const(e, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
if (interface[0] != '\0' && strcmp(interface, PICOM_WINDOW_INTERFACE) != 0) {
dbus_set_error_const(e, DBUS_ERROR_UNKNOWN_INTERFACE, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
auto w = wm_find_managed(ps->wm, wid);
if (!w) {
log_debug("Window %#010x not found.", wid);
dbus_set_error(e, CDBUS_ERROR_BADWIN, CDBUS_ERROR_BADWIN_S, wid);
return DBUS_HANDLER_RESULT_HANDLED;
}
#define append(tgt, type, expr) \
if (!strcmp(#tgt, target)) { \
if (!cdbus_append_##type(reply, expr)) { \
return DBUS_HANDLER_RESULT_NEED_MEMORY; \
} \
return DBUS_HANDLER_RESULT_HANDLED; \
}
#define append_win_property(name, member, type) append(name, type, w->member)
append(Mapped, bool_variant, w->state == WSTATE_MAPPED);
append(Id, wid_variant, w->base.id);
append(Type, string_variant, WINTYPES[w->window_type].name);
append(RawFocused, bool_variant, win_is_focused_raw(w));
append_win_property(ClientWin, client_win, wid_variant);
append_win_property(Leader, leader, wid_variant);
append_win_property(Name, name, string_variant);
if (!strcmp("Next", target)) {
cdbus_window_t next_id = 0;
if (!list_node_is_last(wm_stack_end(ps->wm), &w->base.stack_neighbour)) {
next_id = list_entry(w->base.stack_neighbour.next, struct win,
stack_neighbour)
->id;
}
if (!cdbus_append_wid_variant(reply, next_id)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
#undef append_win_property
#undef append
log_debug(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(e, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult cdbus_process_reset(session_t *ps, DBusMessage *msg attr_unused,
DBusMessage *reply, DBusError *e attr_unused) {
// Reset the compositor
log_info("picom is resetting...");
ev_break(ps->loop, EVBREAK_ALL);
if (reply != NULL && !cdbus_append_boolean(reply, true)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult cdbus_process_repaint(session_t *ps, DBusMessage *msg attr_unused,
DBusMessage *reply, DBusError *e attr_unused) {
// Reset the compositor
force_repaint(ps);
if (reply != NULL && !cdbus_append_boolean(reply, true)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process a win_get D-Bus request.
*/
static DBusHandlerResult
cdbus_process_win_get(session_t *ps, DBusMessage *msg, DBusMessage *reply, DBusError *err) {
cdbus_window_t wid = XCB_NONE;
const char *target = NULL;
if (reply == NULL) {
return DBUS_HANDLER_RESULT_HANDLED;
}
if (!dbus_message_get_args(msg, err, CDBUS_TYPE_WINDOW, &wid, DBUS_TYPE_STRING,
&target, DBUS_TYPE_INVALID)) {
log_debug("Failed to parse argument of \"win_get\" (%s).", err->message);
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
auto w = wm_find_managed(ps->wm, wid);
if (!w) {
log_debug("Window %#010x not found.", wid);
dbus_set_error(err, CDBUS_ERROR_BADWIN, CDBUS_ERROR_BADWIN_S, wid);
return DBUS_HANDLER_RESULT_HANDLED;
}
#define append(tgt, type, expr) \
if (strcmp(#tgt, target) == 0) { \
if (!cdbus_append_##type(reply, expr)) { \
return DBUS_HANDLER_RESULT_NEED_MEMORY; \
} \
return DBUS_HANDLER_RESULT_HANDLED; \
}
#define append_win_property(tgt, type) append(tgt, type, w->tgt)
if (!strcmp("next", target)) {
xcb_window_t next_id =
list_node_is_last(wm_stack_end(ps->wm), &w->base.stack_neighbour)
? 0
: list_entry(w->base.stack_neighbour.next, struct win, stack_neighbour)
->id;
if (!cdbus_append_wid(reply, next_id)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
append(id, boolean, w->base.id);
append(map_state, boolean, w->a.map_state);
append(wmwin, boolean, win_is_wmwin(w));
append(focused_raw, boolean, win_is_focused_raw(w));
append(opacity, double, animatable_get(&w->opacity));
append(left_width, int32, w->frame_extents.left);
append(right_width, int32, w->frame_extents.right);
append(top_width, int32, w->frame_extents.top);
append(bottom_width, int32, w->frame_extents.bottom);
append_win_property(mode, enum);
append_win_property(client_win, wid);
append_win_property(ever_damaged, boolean);
append_win_property(window_type, enum);
append_win_property(leader, wid);
append_win_property(fade_force, enum);
append_win_property(shadow_force, enum);
append_win_property(focused_force, enum);
append_win_property(invert_color_force, enum);
append_win_property(name, string);
append_win_property(class_instance, string);
append_win_property(class_general, string);
append_win_property(role, string);
append_win_property(opacity.target, double);
append_win_property(has_opacity_prop, boolean);
append_win_property(opacity_prop, uint32);
append_win_property(opacity_is_set, boolean);
append_win_property(opacity_set, double);
append_win_property(frame_opacity, double);
append_win_property(shadow, boolean);
append_win_property(invert_color, boolean);
append_win_property(blur_background, boolean);
#undef append_win_property
#undef append
log_debug(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(err, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process a win_set D-Bus request.
*/
static DBusHandlerResult
cdbus_process_win_set(session_t *ps, DBusMessage *msg, DBusMessage *reply, DBusError *err) {
cdbus_window_t wid = XCB_NONE;
const char *target = NULL;
if (!dbus_message_get_args(msg, err, CDBUS_TYPE_WINDOW, &wid, DBUS_TYPE_STRING,
&target, DBUS_TYPE_INVALID)) {
log_debug("Failed to parse argument of \"win_set\" (%s).", err->message);
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
auto w = wm_find_managed(ps->wm, wid);
if (!w) {
log_debug("Window %#010x not found.", wid);
dbus_set_error(err, CDBUS_ERROR_BADWIN, CDBUS_ERROR_BADWIN_S, wid);
return DBUS_HANDLER_RESULT_HANDLED;
}
cdbus_enum_t val = UNSET;
if (!cdbus_msg_get_arg(msg, 2, CDBUS_TYPE_ENUM, &val)) {
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
if (!strcmp("shadow_force", target)) {
win_set_shadow_force(ps, w, val);
} else if (!strcmp("fade_force", target)) {
win_set_fade_force(w, val);
} else if (!strcmp("focused_force", target)) {
win_set_focused_force(ps, w, val);
} else if (!strcmp("invert_color_force", target)) {
win_set_invert_color_force(ps, w, val);
} else {
log_debug(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(err, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
}
if (reply != NULL && !cdbus_append_boolean(reply, true)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process a find_win D-Bus request.
*/
static DBusHandlerResult
cdbus_process_find_win(session_t *ps, DBusMessage *msg, DBusMessage *reply, DBusError *err) {
if (reply == NULL) {
return DBUS_HANDLER_RESULT_HANDLED;
}
const char *target = NULL;
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target)) {
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
xcb_window_t wid = XCB_NONE;
if (!strcmp("client", target)) {
// Find window by client window
cdbus_window_t client = XCB_NONE;
if (!cdbus_msg_get_arg(msg, 1, CDBUS_TYPE_WINDOW, &client)) {
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
auto w = wm_find_by_client(ps->wm, client);
if (w) {
wid = w->base.id;
}
} else if (!strcmp("focused", target)) {
// Find focused window
auto active_win = wm_active_win(ps->wm);
if (active_win && active_win->state != WSTATE_UNMAPPED) {
wid = active_win->base.id;
}
} else {
log_debug(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(err, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
}
if (reply != NULL && !cdbus_append_wid(reply, wid)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process a opts_get D-Bus request.
*/
static DBusHandlerResult
cdbus_process_opts_get(session_t *ps, DBusMessage *msg, DBusMessage *reply, DBusError *err) {
if (reply == NULL) {
return DBUS_HANDLER_RESULT_HANDLED;
}
const char *target = NULL;
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target)) {
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
assert(ps->o.backend < sizeof(BACKEND_STRS) / sizeof(BACKEND_STRS[0]));
#define append(tgt, type, ret) \
if (!strcmp(#tgt, target)) { \
if (reply != NULL && !cdbus_append_##type(reply, ret)) { \
return DBUS_HANDLER_RESULT_NEED_MEMORY; \
} \
return DBUS_HANDLER_RESULT_HANDLED; \
}
#define append_session_option(tgt, type) append(tgt, type, ps->o.tgt)
append(version, string, PICOM_VERSION);
append(pid, int32, getpid());
append(display, string, DisplayString(ps->c.dpy));
append(config_file, string, "Unknown");
append(paint_on_overlay, boolean, ps->overlay != XCB_NONE);
append(paint_on_overlay_id, uint32, ps->overlay); // Sending ID of the X
// composite overlay
// window
append(unredir_if_possible_delay, int32, (int32_t)ps->o.unredir_if_possible_delay);
append(refresh_rate, int32, 0);
append(sw_opti, boolean, false);
append(backend, string, BACKEND_STRS[ps->o.backend]);
append_session_option(unredir_if_possible, boolean);
append_session_option(write_pid_path, string);
append_session_option(mark_wmwin_focused, boolean);
append_session_option(mark_ovredir_focused, boolean);
append_session_option(detect_rounded_corners, boolean);
append_session_option(redirected_force, enum);
append_session_option(stoppaint_force, enum);
append_session_option(logpath, string);
append_session_option(vsync, boolean);
append_session_option(shadow_red, double);
append_session_option(shadow_green, double);
append_session_option(shadow_blue, double);
append_session_option(shadow_radius, int32);
append_session_option(shadow_offset_x, int32);
append_session_option(shadow_offset_y, int32);
append_session_option(shadow_opacity, double);
append_session_option(crop_shadow_to_monitor, boolean);
append_session_option(fade_delta, int32);
append_session_option(fade_in_step, double);
append_session_option(fade_out_step, double);
append_session_option(no_fading_openclose, boolean);
append_session_option(blur_method, boolean);
append_session_option(blur_background_frame, boolean);
append_session_option(blur_background_fixed, boolean);
append_session_option(inactive_dim, double);
append_session_option(inactive_dim_fixed, boolean);
append_session_option(max_brightness, double);
append_session_option(use_ewmh_active_win, boolean);
append_session_option(detect_transient, boolean);
append_session_option(detect_client_leader, boolean);
append_session_option(use_damage, boolean);
#ifdef CONFIG_OPENGL
append_session_option(glx_no_stencil, boolean);
append_session_option(glx_no_rebind_pixmap, boolean);
#endif
#undef append_session_option
#undef append
log_debug(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(err, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
}
// XXX Remove this after header clean up
void queue_redraw(session_t *ps);
/**
* Process a opts_set D-Bus request.
*/
static DBusHandlerResult
cdbus_process_opts_set(session_t *ps, DBusMessage *msg, DBusMessage *reply, DBusError *err) {
const char *target = NULL;
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target)) {
log_error("Failed to parse argument of \"opts_set\" (%s).", err->message);
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
#define get_msg_arg(type, val) \
if (!cdbus_msg_get_arg(msg, 1, DBUS_TYPE_##type, &(val))) { \
dbus_set_error_const(err, DBUS_ERROR_INVALID_ARGS, NULL); \
return DBUS_HANDLER_RESULT_HANDLED; \
};
#define opts_set_do(tgt, dbus_type, type, expr) \
if (strcmp(#tgt, target) == 0) { \
type val; \
get_msg_arg(dbus_type, val); \
ps->o.tgt = expr; \
goto cdbus_process_opts_set_success; \
}
if (!strcmp("clear_shadow", target) || !strcmp("track_focus", target)) {
goto cdbus_process_opts_set_success;
}
opts_set_do(fade_delta, INT32, int32_t, max2(val, 1));
opts_set_do(fade_in_step, DOUBLE, double, normalize_d(val));
opts_set_do(fade_out_step, DOUBLE, double, normalize_d(val));
opts_set_do(no_fading_openclose, BOOLEAN, bool, val);
opts_set_do(stoppaint_force, UINT32, cdbus_enum_t, val);
if (!strcmp("unredir_if_possible", target)) {
dbus_bool_t val = FALSE;
get_msg_arg(BOOLEAN, val);
if (ps->o.unredir_if_possible != val) {
ps->o.unredir_if_possible = val;
queue_redraw(ps);
}
goto cdbus_process_opts_set_success;
}
if (!strcmp("redirected_force", target)) {
cdbus_enum_t val = UNSET;
get_msg_arg(UINT32, val);
if (ps->o.redirected_force != val) {
ps->o.redirected_force = val;
force_repaint(ps);
}
goto cdbus_process_opts_set_success;
}
#undef get_msg_arg
log_error(CDBUS_ERROR_BADTGT_S, target);
dbus_set_error(err, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return DBUS_HANDLER_RESULT_HANDLED;
cdbus_process_opts_set_success:
if (reply != NULL && !cdbus_append_boolean(reply, true)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/**
* Process an Introspect D-Bus request.
*/
static DBusHandlerResult cdbus_process_introspect(DBusMessage *reply) {
static const char *str_introspect =
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection "
"1.0//EN\"\n"
" \"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
"<node name='" CDBUS_OBJECT_NAME "'>\n"
" <interface name='org.freedesktop.DBus.Introspectable'>\n"
" <method name='Introspect'>\n"
" <arg name='data' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n"
" <interface name='org.freedesktop.DBus.Peer'>\n"
" <method name='Ping' />\n"
" <method name='GetMachineId'>\n"
" <arg name='machine_uuid' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n"
" <interface name='" CDBUS_INTERFACE_NAME "'>\n"
" <signal name='win_added'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='win_destroyed'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='win_mapped'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='win_unmapped'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='win_focusin'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='win_focusout'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <method name='reset' />\n"
" <method name='repaint' />\n"
" <method name='list_win'>\n"
" <arg name='wids' type='au' direction='out' />\n"
" </method>\n"
" </interface>\n"
" <interface name='" PICOM_COMPOSITOR_INTERFACE "'>\n"
" <signal name='WinAdded'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='WinDestroyed'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='WinMapped'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" <signal name='WinUnmapped'>\n"
" <arg name='wid' type='" CDBUS_TYPE_WINDOW_STR "'/>\n"
" </signal>\n"
" </interface>\n"
" <node name='windows' />\n"
"</node>\n";
if (reply != NULL && !cdbus_append_string(reply, str_introspect)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
///@}
static int cdbus_process_windows_root_introspect_callback(struct win *w, void *data) {
char **introspect = data;
if (!w->managed) {
return 0;
}
char *tmp = NULL;
if (asprintf(&tmp, "<node name='%#010x'/>\n", w->id) < 0) {
log_fatal("Failed to allocate memory.");
return 1;
}
mstrextend(introspect, tmp);
free(tmp);
return 0;
}
/**
* Process an D-Bus Introspect request, for /windows.
*/
static DBusHandlerResult
cdbus_process_windows_root_introspect(session_t *ps, DBusMessage *reply) {
static const char *str_introspect =
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection "
"1.0//EN\"\n"
" \"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
"<node>\n"
" <interface name='org.freedesktop.DBus.Introspectable'>\n"
" <method name='Introspect'>\n"
" <arg name='data' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n";
if (reply == NULL) {
return DBUS_HANDLER_RESULT_HANDLED;
}
scoped_charp introspect = NULL;
mstrextend(&introspect, str_introspect);
if (wm_foreach(ps->wm, cdbus_process_windows_root_introspect_callback, &introspect)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
mstrextend(&introspect, "</node>");
if (!cdbus_append_string(reply, introspect)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
static bool cdbus_process_window_introspect(DBusMessage *reply) {
// clang-format off
static const char *str_introspect =
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection "
"1.0//EN\"\n"
" \"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
"<node>\n"
" <interface name='org.freedesktop.DBus.Introspectable'>\n"
" <method name='Introspect'>\n"
" <arg name='data' direction='out' type='s' />\n"
" </method>\n"
" </interface>\n"
" <interface name='org.freedesktop.DBus.Properties'>\n"
" <method name='Get'>\n"
" <arg type='s' name='interface_name' direction='in'/>\n"
" <arg type='s' name='property_name' direction='in'/>\n"
" <arg type='v' name='value' direction='out'/>\n"
" </method>\n"
" <method name='GetAll'>\n"
" <arg type='s' name='interface_name' direction='in'/>\n"
" <arg type='a{sv}' name='properties' direction='out'/>\n"
" </method>\n"
" <method name='Set'>\n"
" <arg type='s' name='interface_name' direction='in'/>\n"
" <arg type='s' name='property_name' direction='in'/>\n"
" <arg type='v' name='value' direction='in'/>\n"
" </method>\n"
" <signal name='PropertiesChanged'>\n"
" <arg type='s' name='interface_name'/>\n"
" <arg type='a{sv}' name='changed_properties'/>\n"
" <arg type='as' name='invalidated_properties'/>\n"
" </signal>\n"
" </interface>\n"
" <interface name='" PICOM_WINDOW_INTERFACE "'>\n"
" <property type='" CDBUS_TYPE_WINDOW_STR "' name='Leader' access='read'/>\n"
" <property type='" CDBUS_TYPE_WINDOW_STR "' name='ClientWin' access='read'/>\n"
" <property type='" CDBUS_TYPE_WINDOW_STR "' name='Id' access='read'/>\n"
" <property type='" CDBUS_TYPE_WINDOW_STR "' name='Next' access='read'/>\n"
" <property type='b' name='RawFocused' access='read'/>\n"
" <property type='b' name='Mapped' access='read'/>\n"
" <property type='s' name='Name' access='read'/>\n"
" <property type='s' name='Type' access='read'/>\n"
" </interface>\n"
"</node>\n";
// clang-format on
if (reply != NULL && !cdbus_append_string(reply, str_introspect)) {
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
/// Send a reply or an error message for request `msg`, appropriately based on the
/// `result` and whether `err` is set. Frees the error message and the reply message, and
/// flushes the connection.
static inline DBusHandlerResult
cdbus_send_reply_or_error(DBusConnection *conn, DBusHandlerResult result,
DBusMessage *msg, DBusMessage *reply, DBusError *err) {
if (dbus_error_is_set(err) && reply != NULL) {
// If error is set, send the error instead of the reply
dbus_message_unref(reply);
reply = dbus_message_new_error(msg, err->name, err->message);
if (reply == NULL) {
result = DBUS_HANDLER_RESULT_NEED_MEMORY;
}
}
if (result != DBUS_HANDLER_RESULT_HANDLED && reply != NULL) {
// We shouldn't send a reply if we didn't handle this message
dbus_message_unref(reply);
reply = NULL;
}
if (reply != NULL) {
if (!dbus_connection_send(conn, reply, NULL)) {
result = DBUS_HANDLER_RESULT_NEED_MEMORY;
}
dbus_message_unref(reply);
}
dbus_error_free(err);
dbus_connection_flush(conn);
return result;
}
/**
* Process a message from D-Bus.
*/
static DBusHandlerResult cdbus_process(DBusConnection *conn, DBusMessage *msg, void *ud) {
session_t *ps = ud;
if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameAcquired") ||
dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameLost")) {
return DBUS_HANDLER_RESULT_HANDLED;
}
if (dbus_message_get_type(msg) == DBUS_MESSAGE_TYPE_ERROR) {
log_debug("Error message of path \"%s\" "
"interface \"%s\", member \"%s\", error \"%s\"",
dbus_message_get_path(msg), dbus_message_get_interface(msg),
dbus_message_get_member(msg), dbus_message_get_error_name(msg));
return DBUS_HANDLER_RESULT_HANDLED;
}
if (dbus_message_get_type(msg) != DBUS_MESSAGE_TYPE_METHOD_CALL) {
log_debug("Illegal message of type \"%s\", path \"%s\" "
"interface \"%s\", member \"%s\"",
cdbus_repr_msgtype(msg), dbus_message_get_path(msg),
dbus_message_get_interface(msg), dbus_message_get_member(msg));
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
DBusMessage *reply = NULL;
DBusError err;
DBusHandlerResult ret = DBUS_HANDLER_RESULT_HANDLED;
const char *interface = dbus_message_get_interface(msg);
const char *member = dbus_message_get_member(msg);
dbus_error_init(&err);
if (!dbus_message_get_no_reply(msg)) {
reply = dbus_message_new_method_return(msg);
if (reply == NULL) {
log_error("Failed to create reply message.");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
}
if (dbus_message_is_method_call(msg, DBUS_INTERFACE_INTROSPECTABLE, "Introspect")) {
ret = cdbus_process_introspect(reply);
} else if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PEER, "Ping")) {
// Intentionally left blank
} else if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PEER, "GetMachineId")) {
if (reply != NULL) {
char *uuid = dbus_get_local_machine_id();
if (uuid) {
if (!cdbus_append_string(reply, uuid)) {
ret = DBUS_HANDLER_RESULT_NEED_MEMORY;
}
dbus_free(uuid);
} else {
ret = DBUS_HANDLER_RESULT_NEED_MEMORY;
}
}
} else if (strcmp(interface, CDBUS_INTERFACE_NAME) != 0) {
dbus_set_error_const(&err, DBUS_ERROR_UNKNOWN_INTERFACE, NULL);
} else {
static const struct {
const char *name;
DBusHandlerResult (*func)(session_t *ps, DBusMessage *msg,
DBusMessage *reply, DBusError *err);
} handlers[] = {
{"reset", cdbus_process_reset},
{"repaint", cdbus_process_repaint},
{"list_win", cdbus_process_list_win},
{"win_get", cdbus_process_win_get},
{"win_set", cdbus_process_win_set},
{"find_win", cdbus_process_find_win},
{"opts_get", cdbus_process_opts_get},
{"opts_set", cdbus_process_opts_set},
};
size_t i;
for (i = 0; i < ARR_SIZE(handlers); i++) {
if (strcmp(handlers[i].name, member) == 0) {
ret = handlers[i].func(ps, msg, reply, &err);
break;
}
}
if (i >= ARR_SIZE(handlers)) {
log_debug("Unknown method \"%s\".", member);
dbus_set_error_const(&err, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
}
}
return cdbus_send_reply_or_error(conn, ret, msg, reply, &err);
}
/**
* Process a message from D-Bus, for /windows path.
*/
static DBusHandlerResult
cdbus_process_windows(DBusConnection *conn, DBusMessage *msg, void *ud) {
session_t *ps = ud;
DBusHandlerResult ret = DBUS_HANDLER_RESULT_HANDLED;
const char *path = dbus_message_get_path(msg);
const char *last_segment = strrchr(path, '/');
DBusError err;
dbus_error_init(&err);
if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameAcquired") ||
dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameLost")) {
return DBUS_HANDLER_RESULT_HANDLED;
}
if (dbus_message_get_type(msg) == DBUS_MESSAGE_TYPE_ERROR) {
log_debug("Error message of path \"%s\" "
"interface \"%s\", member \"%s\", error \"%s\"",
dbus_message_get_path(msg), dbus_message_get_interface(msg),
dbus_message_get_member(msg), dbus_message_get_error_name(msg));
return DBUS_HANDLER_RESULT_HANDLED;
}
if (dbus_message_get_type(msg) != DBUS_MESSAGE_TYPE_METHOD_CALL) {
log_debug("Illegal message of type \"%s\", path \"%s\" "
"interface \"%s\", member \"%s\"",
cdbus_repr_msgtype(msg), dbus_message_get_path(msg),
dbus_message_get_interface(msg), dbus_message_get_member(msg));
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
DBusMessage *reply = NULL;
const char *interface = dbus_message_get_interface(msg);
const char *member = dbus_message_get_member(msg);
if (!dbus_message_get_no_reply(msg)) {
reply = dbus_message_new_method_return(msg);
if (reply == NULL) {
log_error("Failed to create reply message.");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
}
if (last_segment == NULL) {
dbus_set_error_const(&err, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
goto finished;
}
bool is_root = strncmp(last_segment, "/windows", 8) == 0;
if (is_root) {
if (strcmp(interface, DBUS_INTERFACE_INTROSPECTABLE) == 0 &&
strcmp(member, "Introspect") == 0) {
ret = cdbus_process_windows_root_introspect(ps, reply);
} else {
log_debug("Illegal message of type \"%s\", path \"%s\" "
"interface \"%s\", member \"%s\"",
cdbus_repr_msgtype(msg), dbus_message_get_path(msg),
dbus_message_get_interface(msg),
dbus_message_get_member(msg));
dbus_set_error_const(&err, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
}
goto finished;
}
char *endptr = NULL;
auto wid = (cdbus_window_t)strtol(last_segment + 1, &endptr, 0);
if (*endptr != '\0') {
log_error("Invalid window ID string \"%s\".", last_segment + 1);
dbus_set_error_const(&err, DBUS_ERROR_INVALID_ARGS, NULL);
} else if (strcmp(interface, DBUS_INTERFACE_INTROSPECTABLE) == 0 &&
strcmp(member, "Introspect") == 0) {
ret = cdbus_process_window_introspect(reply);
} else if (strcmp(interface, DBUS_INTERFACE_PROPERTIES) == 0) {
if (strcmp(member, "GetAll") == 0 || strcmp(member, "Set") == 0) {
dbus_set_error_const(&err, DBUS_ERROR_NOT_SUPPORTED, NULL);
} else if (strcmp(member, "Get") == 0) {
ret = cdbus_process_window_property_get(ps, msg, wid, reply, &err);
} else {
log_debug(
"Unexpected member \"%s\" of dbus properties interface.", member);
dbus_set_error_const(&err, DBUS_ERROR_UNKNOWN_METHOD, NULL);
}
} else {
log_debug("Illegal message of type \"%s\", path \"%s\" "
"interface \"%s\", member \"%s\"",
cdbus_repr_msgtype(msg), dbus_message_get_path(msg),
dbus_message_get_interface(msg), dbus_message_get_member(msg));
dbus_set_error_const(&err, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
}
finished:
return cdbus_send_reply_or_error(conn, ret, msg, reply, &err);
}
/**
* Send a signal with a Window ID as argument.
*
* @param ps current session
* @param name signal name
* @param wid window ID
*/
static bool cdbus_signal_wid(struct cdbus_data *cd, const char *interface,
const char *name, xcb_window_t wid) {
DBusMessage *msg = dbus_message_new_signal(CDBUS_OBJECT_NAME, interface, name);
if (!msg) {
log_error("Failed to create D-Bus signal.");
return false;
}
if (!cdbus_append_wid(msg, wid)) {
dbus_message_unref(msg);
return false;
}
if (!dbus_connection_send(cd->dbus_conn, msg, NULL)) {
log_error("Failed to send D-Bus signal.");
dbus_message_unref(msg);
return false;
}
dbus_connection_flush(cd->dbus_conn);
dbus_message_unref(msg);
return true;
}
/** @name Core callbacks
*/
///@{
void cdbus_ev_win_added(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_added", w->id);
cdbus_signal_wid(cd, PICOM_COMPOSITOR_INTERFACE, "WinAdded", w->id);
}
}
void cdbus_ev_win_destroyed(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_destroyed", w->id);
cdbus_signal_wid(cd, PICOM_COMPOSITOR_INTERFACE, "WinDestroyed", w->id);
}
}
void cdbus_ev_win_mapped(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_mapped", w->id);
cdbus_signal_wid(cd, PICOM_COMPOSITOR_INTERFACE, "WinMapped", w->id);
}
}
void cdbus_ev_win_unmapped(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_unmapped", w->id);
cdbus_signal_wid(cd, PICOM_COMPOSITOR_INTERFACE, "WinUnmapped", w->id);
}
}
void cdbus_ev_win_focusout(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_focusout", w->id);
}
}
void cdbus_ev_win_focusin(struct cdbus_data *cd, struct win *w) {
if (cd->dbus_conn) {
cdbus_signal_wid(cd, CDBUS_INTERFACE_NAME, "win_focusin", w->id);
}
}
//!@}
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