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Merge pull request #769 from yshui/dbus-window-object

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yshui 2022-02-05 05:41:06 +00:00 committed by GitHub
commit 928963721c
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3 changed files with 390 additions and 24 deletions
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3
picom.sample.conf
View file

@ -203,6 +203,9 @@ blur-background-exclude = [
# General Settings #
#################################
# Enable remote control via D-Bus. See the man page for more details.
# dbus = true
# Daemonize process. Fork to background after initialization. Causes issues with certain (badly-written) drivers.
# daemon = false

24
src/config_libconfig.c
View file

@ -30,8 +30,9 @@ static inline int lcfg_lookup_bool(const config_t *config, const char *path, boo
int ival;
int ret = config_lookup_bool(config, path, &ival);
if (ret)
if (ret) {
*value = ival;
}
return ret;
}
@ -360,15 +361,21 @@ char *parse_config_libconfig(options_t *opt, const char *config_file, bool *shad
// Get options from the configuration file. We don't do range checking
// right now. It will be done later
// --dbus
lcfg_lookup_bool(&cfg, "dbus", &opt->dbus);
// -D (fade_delta)
if (config_lookup_int(&cfg, "fade-delta", &ival))
if (config_lookup_int(&cfg, "fade-delta", &ival)) {
opt->fade_delta = ival;
}
// -I (fade_in_step)
if (config_lookup_float(&cfg, "fade-in-step", &dval))
if (config_lookup_float(&cfg, "fade-in-step", &dval)) {
opt->fade_in_step = normalize_d(dval);
}
// -O (fade_out_step)
if (config_lookup_float(&cfg, "fade-out-step", &dval))
if (config_lookup_float(&cfg, "fade-out-step", &dval)) {
opt->fade_out_step = normalize_d(dval);
}
// -r (shadow_radius)
config_lookup_int(&cfg, "shadow-radius", &opt->shadow_radius);
// -o (shadow_opacity)
@ -378,11 +385,13 @@ char *parse_config_libconfig(options_t *opt, const char *config_file, bool *shad
// -t (shadow_offset_y)
config_lookup_int(&cfg, "shadow-offset-y", &opt->shadow_offset_y);
// -i (inactive_opacity)
if (config_lookup_float(&cfg, "inactive-opacity", &dval))
if (config_lookup_float(&cfg, "inactive-opacity", &dval)) {
opt->inactive_opacity = normalize_d(dval);
}
// --active_opacity
if (config_lookup_float(&cfg, "active-opacity", &dval))
if (config_lookup_float(&cfg, "active-opacity", &dval)) {
opt->active_opacity = normalize_d(dval);
}
// --corner-radius
config_lookup_int(&cfg, "corner-radius", &opt->corner_radius);
// --rounded-corners-exclude
@ -390,8 +399,7 @@ char *parse_config_libconfig(options_t *opt, const char *config_file, bool *shad
// -e (frame_opacity)
config_lookup_float(&cfg, "frame-opacity", &opt->frame_opacity);
// -c (shadow_enable)
if (config_lookup_bool(&cfg, "shadow", &ival))
*shadow_enable = ival;
lcfg_lookup_bool(&cfg, "shadow", shadow_enable);
// -m (menu_opacity)
if (config_lookup_float(&cfg, "menu-opacity", &dval)) {
log_warn("Option `menu-opacity` is deprecated, and will be removed."

387
src/dbus.c
View file

@ -72,7 +72,11 @@ typedef uint32_t cdbus_enum_t;
cdbus_reply_errm((ps), 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);
@ -182,6 +186,9 @@ bool cdbus_init(session_t *ps, const char *uniq) {
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 true;
fail:
ps->dbus_data = NULL;
@ -437,6 +444,56 @@ static bool cdbus_apdarg_wid(session_t *ps attr_unused, DBusMessage *msg, const
return true;
}
/**
* Callback to append a Window argument to a message as a variant.
*/
static bool
cdbus_append_wid_variant(session_t *ps attr_unused, DBusMessage *msg, const void *data) {
assert(data);
cdbus_window_t val = *(const xcb_window_t *)data;
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)) {
log_error("Failed to append argument.");
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
/**
* Callback to append a bool argument to a message as a variant.
*/
static bool
cdbus_append_bool_variant(session_t *ps attr_unused, DBusMessage *msg, const void *data) {
assert(data);
dbus_bool_t val = *(const bool *)data;
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)) {
log_error("Failed to append argument.");
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
/**
* Callback to append an cdbus_enum_t argument to a message.
*/
@ -467,6 +524,46 @@ cdbus_apdarg_string(session_t *ps attr_unused, DBusMessage *msg, const void *dat
return true;
}
/**
* Callback to append a string argument to a message as a variant.
*/
static bool
cdbus_append_string_variant(session_t *ps attr_unused, DBusMessage *msg, const void *data) {
const char *str = *(const char **)data;
if (!str) {
str = "";
}
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 bool cdbus_append_empty_dict(session_t *ps attr_unused, DBusMessage *msg,
const void *data attr_unused) {
DBusMessageIter it, it2;
dbus_message_iter_init_append(msg, &it);
if (!dbus_message_iter_open_container(&it, DBUS_TYPE_ARRAY, "{sv}", &it2)) {
return false;
}
if (!dbus_message_iter_close_container(&it, &it2)) {
return false;
}
return true;
}
/**
* Callback to append all window IDs to a message.
*/
@ -517,14 +614,14 @@ static bool cdbus_apdarg_wids(session_t *ps, DBusMessage *msg, const void *data
* add an argument
* @param data data pointer to pass to the function
*/
static bool cdbus_signal(session_t *ps, const char *name,
static bool cdbus_signal(session_t *ps, const char *interface, const char *name,
bool (*func)(session_t *ps, DBusMessage *msg, const void *data),
const void *data) {
struct cdbus_data *cd = ps->dbus_data;
DBusMessage *msg = NULL;
// Create a signal
msg = dbus_message_new_signal(CDBUS_OBJECT_NAME, CDBUS_INTERFACE_NAME, name);
msg = dbus_message_new_signal(CDBUS_OBJECT_NAME, interface, name);
if (!msg) {
log_error("Failed to create D-Bus signal.");
return false;
@ -553,8 +650,9 @@ static bool cdbus_signal(session_t *ps, const char *name,
/**
* Send a signal with a Window ID as argument.
*/
static inline bool cdbus_signal_wid(session_t *ps, const char *name, xcb_window_t wid) {
return cdbus_signal(ps, name, cdbus_apdarg_wid, &wid);
static inline bool
cdbus_signal_wid(session_t *ps, const char *interface, const char *name, xcb_window_t wid) {
return cdbus_signal(ps, interface, name, cdbus_apdarg_wid, &wid);
}
/**
@ -734,6 +832,84 @@ static bool cdbus_process_list_win(session_t *ps, DBusMessage *msg) {
return true;
}
/**
* Process a win_get D-Bus request.
*/
static bool
cdbus_process_window_property_get(session_t *ps, DBusMessage *msg, cdbus_window_t wid) {
const char *target = NULL;
const char *interface = NULL;
DBusError err = {};
if (!dbus_message_get_args(msg, &err, DBUS_TYPE_STRING, &interface,
DBUS_TYPE_STRING, &target, DBUS_TYPE_INVALID)) {
log_error("Failed to parse argument of \"Get\" (%s).", err.message);
dbus_error_free(&err);
return false;
}
if (strcmp(interface, PICOM_WINDOW_INTERFACE)) {
return false;
}
auto w = find_managed_win(ps, wid);
if (!w) {
log_error("Window %#010x not found.", wid);
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADWIN, CDBUS_ERROR_BADWIN_S, wid);
return true;
}
#define cdbus_m_win_get_do(tgt, member, apdarg_func) \
if (!strcmp(#tgt, target)) { \
cdbus_reply(ps, msg, apdarg_func, &w->member); \
return true; \
}
if (!strcmp("Mapped", target)) {
cdbus_reply(ps, msg, cdbus_append_bool_variant,
(bool[]){win_is_mapped_in_x(w)});
return true;
}
if (!strcmp(target, "Id")) {
cdbus_reply(ps, msg, cdbus_append_wid_variant, &w->base.id);
return true;
}
// next
if (!strcmp("Next", target)) {
cdbus_window_t next_id = 0;
if (!list_node_is_last(&ps->window_stack, &w->base.stack_neighbour)) {
next_id = list_entry(w->base.stack_neighbour.next, struct win,
stack_neighbour)
->id;
}
cdbus_reply(ps, msg, cdbus_append_wid_variant, &next_id);
return true;
}
cdbus_m_win_get_do(ClientWin, client_win, cdbus_append_wid_variant);
cdbus_m_win_get_do(Leader, leader, cdbus_append_wid_variant);
cdbus_m_win_get_do(Name, name, cdbus_append_string_variant);
if (!strcmp("Type", target)) {
cdbus_reply(ps, msg, cdbus_append_string_variant, &WINTYPES[w->window_type]);
return true;
}
if (!strcmp("RawFocused", target)) {
cdbus_reply(ps, msg, cdbus_append_bool_variant,
(bool[]){win_is_focused_raw(ps, w)});
return true;
}
#undef cdbus_m_win_get_do
log_error(CDBUS_ERROR_BADTGT_S, target);
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADTGT, CDBUS_ERROR_BADTGT_S, target);
return true;
}
/**
* Process a win_get D-Bus request.
*/
@ -1212,6 +1388,21 @@ static bool cdbus_process_introspect(session_t *ps, DBusMessage *msg) {
" <method name='reset' />\n"
" <method name='repaint' />\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";
cdbus_reply_string(ps, msg, str_introspect);
@ -1220,6 +1411,90 @@ static bool cdbus_process_introspect(session_t *ps, DBusMessage *msg) {
}
///@}
/**
* Process an D-Bus Introspect request, for /windows.
*/
static bool cdbus_process_windows_root_introspect(session_t *ps, DBusMessage *msg) {
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";
char *ret = NULL;
mstrextend(&ret, str_introspect);
HASH_ITER2(ps->windows, w) {
assert(!w->destroyed);
if (!w->managed) {
continue;
}
char *tmp = NULL;
asprintf(&tmp, "<node name='%#010x'/>\n", w->id);
mstrextend(&ret, tmp);
free(tmp);
}
mstrextend(&ret, "</node>");
bool success = cdbus_reply_string(ps, msg, ret);
free(ret);
return success;
}
static bool cdbus_process_window_introspect(session_t *ps, DBusMessage *msg) {
// 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
return cdbus_reply_string(ps, msg, str_introspect);
}
/**
* Process a message from D-Bus.
*/
@ -1304,42 +1579,122 @@ cdbus_process(DBusConnection *c attr_unused, DBusMessage *msg, void *ud) {
return handled ? DBUS_HANDLER_RESULT_HANDLED : DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
/**
* Process a message from D-Bus, for /windows path.
*/
static DBusHandlerResult
cdbus_process_windows(DBusConnection *c attr_unused, DBusMessage *msg, void *ud) {
session_t *ps = ud;
bool handled = false;
const char *path = dbus_message_get_path(msg);
const char *last_segment = strrchr(path, '/');
if (last_segment == NULL) {
if (DBUS_MESSAGE_TYPE_METHOD_CALL == dbus_message_get_type(msg) &&
!dbus_message_get_no_reply(msg))
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
return DBUS_HANDLER_RESULT_HANDLED;
}
bool is_root = strncmp(last_segment, "/windows", 8) == 0;
if (dbus_message_is_method_call(msg, "org.freedesktop.DBus.Introspectable",
"Introspect")) {
if (is_root) {
handled = cdbus_process_windows_root_introspect(ps, msg);
} else {
handled = cdbus_process_window_introspect(ps, msg);
}
goto finished;
}
if (!is_root) {
auto wid = (cdbus_window_t)strtol(last_segment + 1, NULL, 0);
if (dbus_message_is_method_call(msg, "org.freedesktop.DBus.Properties",
"GetAll")) {
handled = cdbus_reply(ps, msg, cdbus_append_empty_dict, NULL);
goto finished;
}
if (dbus_message_is_method_call(msg, "org.freedesktop.DBus.Properties", "Get")) {
handled = cdbus_process_window_property_get(ps, msg, wid);
goto finished;
}
}
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_TYPE_ERROR == dbus_message_get_type(msg)) {
log_error("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));
} else {
log_error("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));
}
if (DBUS_MESSAGE_TYPE_METHOD_CALL == dbus_message_get_type(msg) &&
!dbus_message_get_no_reply(msg)) {
handled = cdbus_reply_err(ps, msg, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
}
finished:
if (!handled && dbus_message_get_type(msg) == DBUS_MESSAGE_TYPE_METHOD_CALL &&
!dbus_message_get_no_reply(msg)) {
handled =
cdbus_reply_err(ps, msg, CDBUS_ERROR_UNKNOWN, CDBUS_ERROR_UNKNOWN_S);
}
return handled ? DBUS_HANDLER_RESULT_HANDLED : DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
/** @name Core callbacks
*/
///@{
void cdbus_ev_win_added(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_added", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_added", w->id);
cdbus_signal_wid(ps, PICOM_COMPOSITOR_INTERFACE, "WinAdded", w->id);
}
}
void cdbus_ev_win_destroyed(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_destroyed", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_destroyed", w->id);
cdbus_signal_wid(ps, PICOM_COMPOSITOR_INTERFACE, "WinDestroyed", w->id);
}
}
void cdbus_ev_win_mapped(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_mapped", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_mapped", w->id);
cdbus_signal_wid(ps, PICOM_COMPOSITOR_INTERFACE, "WinMapped", w->id);
}
}
void cdbus_ev_win_unmapped(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_unmapped", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_unmapped", w->id);
cdbus_signal_wid(ps, PICOM_COMPOSITOR_INTERFACE, "WinUnmapped", w->id);
}
}
void cdbus_ev_win_focusout(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_focusout", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_focusout", w->id);
}
}
void cdbus_ev_win_focusin(session_t *ps, struct win *w) {
struct cdbus_data *cd = ps->dbus_data;
if (cd->dbus_conn)
cdbus_signal_wid(ps, "win_focusin", w->id);
if (cd->dbus_conn) {
cdbus_signal_wid(ps, CDBUS_INTERFACE_NAME, "win_focusin", w->id);
}
}
//!@}