Feature #80: D-Bus support
- Add D-Bus support. Currently 7 methods are available: "reset" (same as SIGUSR1), "list_win" (list the windows compton manages), "win_get" (get a property of the window), "win_set" (set a property of the window), "find_win" (find window based on client window / focus), "opts_get" (get the value of a compton option), and "opts_set" (set the value of a compton option), together with 4 signals: "win_added", "win_destroyed", "win_mapped", "win_unmapped". - D-Bus support depends on libdbus. - As there are many items and my time is tight, no much tests are done. Bugs to be expected. - Create a new header file `common.h` that contains shared content. - Fix some bugs in timeout handling. - Update file headers in all source files. - Re-enable --unredir-if-possible on multi-screen set-ups, as the user could turn if off manually anyway. - Check if the window is mapped in `repair_win()`. - Add ps->track_atom_lst and its handlers, to prepare for the new condition format. - Known issue 1: "win_get", "win_set", "opts_get", "opts_set" support a very limited number of targets only. New ones will be added gradually. - Known issue 2: Accidental drop of D-Bus connection is not handled. - Known issue 3: Introspection does not reveal all available methods, because some methods have unpredictable prototypes. Still hesitating about what to do... - Known issue 4: Error handling is not finished yet. Compton does not always reply with the correct error message (but it does print out the correct error message, usually).pull/2/head
Richard Grenville
12 years ago
parent
a5dc829944
commit
3213231298
@ -0,0 +1,920 @@
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/*
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* Compton - a compositor for X11
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*
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* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
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*
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* Copyright (c) 2011-2013, Christopher Jeffrey
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* See LICENSE for more information.
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*
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*/
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#include "dbus.h"
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/**
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* Initialize D-Bus connection.
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*/
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bool
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cdbus_init(session_t *ps) {
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DBusError err = { };
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// Initialize
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dbus_error_init(&err);
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// Connect to D-Bus
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// Use dbus_bus_get_private() so we can fully recycle it ourselves
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ps->dbus_conn = dbus_bus_get_private(DBUS_BUS_SESSION, &err);
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if (dbus_error_is_set(&err)) {
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printf_errf("(): D-Bus connection failed (%s).", err.message);
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dbus_error_free(&err);
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return false;
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}
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if (!ps->dbus_conn) {
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printf_errf("(): D-Bus connection failed for unknown reason.");
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return false;
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}
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// Avoid exiting on disconnect
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dbus_connection_set_exit_on_disconnect(ps->dbus_conn, false);
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// Request service name
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{
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// Get display name
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char *display = DisplayString(ps->dpy);
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if (!display)
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display = "unknown";
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display = mstrcpy(display);
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// Convert all special characters in display name to underscore
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{
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char *pdisp = display;
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while (*pdisp) {
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if (!isalnum(*pdisp))
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*pdisp = '_';
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++pdisp;
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}
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}
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// Build service name
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char *service = mstrjoin3(CDBUS_SERVICE_NAME, ".", display);
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ps->dbus_service = service;
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free(display);
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display = NULL;
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// Request for the name
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int ret = dbus_bus_request_name(ps->dbus_conn, service,
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DBUS_NAME_FLAG_DO_NOT_QUEUE, &err);
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if (dbus_error_is_set(&err)) {
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printf_errf("(): Failed to obtain D-Bus name (%s).", err.message);
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dbus_error_free(&err);
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}
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if (DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER != ret
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&& DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER != ret) {
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printf_errf("(): Failed to become the primary owner of requested "
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"D-Bus name (%d).", ret);
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}
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}
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// Add watch handlers
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if (!dbus_connection_set_watch_functions(ps->dbus_conn,
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cdbus_callback_add_watch, cdbus_callback_remove_watch,
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cdbus_callback_watch_toggled, ps, NULL)) {
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printf_errf("(): Failed to add D-Bus watch functions.");
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return false;
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}
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// Add timeout handlers
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if (!dbus_connection_set_timeout_functions(ps->dbus_conn,
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cdbus_callback_add_timeout, cdbus_callback_remove_timeout,
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cdbus_callback_timeout_toggled, ps, NULL)) {
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printf_errf("(): Failed to add D-Bus timeout functions.");
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return false;
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}
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// Add match
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dbus_bus_add_match(ps->dbus_conn,
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"type='method_call',interface='" CDBUS_INTERFACE_NAME "'", &err);
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if (dbus_error_is_set(&err)) {
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printf_errf("(): Failed to add D-Bus match.");
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dbus_error_free(&err);
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return false;
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}
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return true;
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}
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/**
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* Destroy D-Bus connection.
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*/
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void
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cdbus_destroy(session_t *ps) {
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if (ps->dbus_conn) {
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// Release DBus name firstly
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if (ps->dbus_service) {
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DBusError err = { };
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dbus_error_init(&err);
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dbus_bus_release_name(ps->dbus_conn, ps->dbus_service, &err);
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if (dbus_error_is_set(&err)) {
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printf_errf("(): Failed to release DBus name (%s).",
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err.message);
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dbus_error_free(&err);
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}
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}
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// Close and unref the connection
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dbus_connection_close(ps->dbus_conn);
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dbus_connection_unref(ps->dbus_conn);
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}
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}
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/** @name DBusTimeout handling
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*/
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///@{
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/**
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* Callback for adding D-Bus timeout.
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*/
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static dbus_bool_t
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cdbus_callback_add_timeout(DBusTimeout *timeout, void *data) {
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session_t *ps = data;
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timeout_t *ptmout = timeout_insert(ps, dbus_timeout_get_interval(timeout),
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cdbus_callback_handle_timeout, timeout);
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if (ptmout)
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dbus_timeout_set_data(timeout, ptmout, NULL);
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return (bool) ptmout;
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}
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/**
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* Callback for removing D-Bus timeout.
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*/
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static void
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cdbus_callback_remove_timeout(DBusTimeout *timeout, void *data) {
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session_t *ps = data;
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timeout_t *ptmout = dbus_timeout_get_data(timeout);
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assert(ptmout);
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if (ptmout)
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timeout_drop(ps, ptmout);
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}
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/**
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* Callback for toggling a D-Bus timeout.
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*/
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static void
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cdbus_callback_timeout_toggled(DBusTimeout *timeout, void *data) {
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timeout_t *ptmout = dbus_timeout_get_data(timeout);
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assert(ptmout);
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if (ptmout) {
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ptmout->enabled = dbus_timeout_get_enabled(timeout);
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// Refresh interval as libdbus doc says: "Whenever a timeout is toggled,
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// its interval may change."
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ptmout->interval = dbus_timeout_get_interval(timeout);
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}
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}
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/**
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* Callback for handling a D-Bus timeout.
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*/
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static bool
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cdbus_callback_handle_timeout(session_t *ps, timeout_t *ptmout) {
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assert(ptmout && ptmout->data);
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if (ptmout && ptmout->data)
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return dbus_timeout_handle(ptmout->data);
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return false;
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}
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///@}
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/** @name DBusWatch handling
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*/
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///@{
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/**
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* Callback for adding D-Bus watch.
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*/
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static dbus_bool_t
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cdbus_callback_add_watch(DBusWatch *watch, void *data) {
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// Leave disabled watches alone
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if (!dbus_watch_get_enabled(watch))
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return TRUE;
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session_t *ps = data;
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// Insert the file descriptor
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fds_insert(ps, dbus_watch_get_unix_fd(watch),
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cdbus_get_watch_cond(watch));
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// Always return true
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return TRUE;
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}
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/**
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* Callback for removing D-Bus watch.
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*/
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static void
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cdbus_callback_remove_watch(DBusWatch *watch, void *data) {
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session_t *ps = data;
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fds_drop(ps, dbus_watch_get_unix_fd(watch),
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cdbus_get_watch_cond(watch));
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}
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/**
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* Callback for toggling D-Bus watch status.
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*/
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static void
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cdbus_callback_watch_toggled(DBusWatch *watch, void *data) {
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if (dbus_watch_get_enabled(watch)) {
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cdbus_callback_add_watch(watch, data);
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}
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else {
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cdbus_callback_remove_watch(watch, data);
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}
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}
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///@}
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/** @name Message argument appending callbacks
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*/
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///@{
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/**
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* Callback to append a bool argument to a message.
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*/
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static bool
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cdbus_apdarg_bool(session_t *ps, DBusMessage *msg, const void *data) {
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assert(data);
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dbus_bool_t val = *(const bool *) data;
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if (!dbus_message_append_args(msg, DBUS_TYPE_BOOLEAN, &val,
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DBUS_TYPE_INVALID)) {
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printf_errf("(): Failed to append argument.");
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return false;
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}
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return true;
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}
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/**
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* Callback to append a Window argument to a message.
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*/
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static bool
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cdbus_apdarg_wid(session_t *ps, DBusMessage *msg, const void *data) {
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assert(data);
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cdbus_window_t val = *(const Window *)data;
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if (!dbus_message_append_args(msg, CDBUS_TYPE_WINDOW, &val,
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DBUS_TYPE_INVALID)) {
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printf_errf("(): Failed to append argument.");
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return false;
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}
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return true;
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}
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/**
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* Callback to append an cdbus_enum_t argument to a message.
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*/
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static bool
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cdbus_apdarg_enum(session_t *ps, DBusMessage *msg, const void *data) {
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assert(data);
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if (!dbus_message_append_args(msg, CDBUS_TYPE_ENUM, data,
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DBUS_TYPE_INVALID)) {
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printf_errf("(): Failed to append argument.");
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return false;
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}
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return true;
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}
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/**
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* Callback to append a string argument to a message.
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*/
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static bool
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cdbus_apdarg_string(session_t *ps, DBusMessage *msg, const void *data) {
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const char *str = data;
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if (!str)
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str = "";
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if (!dbus_message_append_args(msg, DBUS_TYPE_STRING, &str,
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DBUS_TYPE_INVALID)) {
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printf_errf("(): Failed to append argument.");
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return false;
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}
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return true;
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}
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/**
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* Callback to append all window IDs to a message.
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*/
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static bool
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cdbus_apdarg_wids(session_t *ps, DBusMessage *msg, const void *data) {
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// Get the number of wids we are to include
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unsigned count = 0;
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for (win *w = ps->list; w; w = w->next) {
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if (!w->destroyed)
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++count;
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}
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// Allocate memory for an array of window IDs
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cdbus_window_t *arr = malloc(sizeof(cdbus_window_t) * count);
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if (!arr) {
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printf_errf("(): Failed to allocate memory for window ID array.");
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return false;
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}
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// Build the array
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{
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cdbus_window_t *pcur = arr;
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for (win *w = ps->list; w; w = w->next) {
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if (!w->destroyed) {
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*pcur = w->id;
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++pcur;
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assert(pcur <= arr + count);
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}
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}
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assert(pcur == arr + count);
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}
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// Append arguments
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if (!dbus_message_append_args(msg, DBUS_TYPE_ARRAY, CDBUS_TYPE_WINDOW,
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&arr, count, DBUS_TYPE_INVALID)) {
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printf_errf("(): Failed to append argument.");
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free(arr);
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return false;
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}
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free(arr);
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return true;
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}
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///@}
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/**
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* Send a D-Bus signal.
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*
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* @param ps current session
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* @param name signal name
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* @param func a function that modifies the built message, to, for example,
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* add an argument
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* @param data data pointer to pass to the function
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*/
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static bool
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cdbus_signal(session_t *ps, const char *name,
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bool (*func)(session_t *ps, DBusMessage *msg, const void *data),
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const void *data) {
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DBusMessage* msg = NULL;
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// Create a signal
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msg = dbus_message_new_signal(CDBUS_OBJECT_NAME, CDBUS_INTERFACE_NAME,
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name);
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if (!msg) {
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printf_errf("(): Failed to create D-Bus signal.");
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return false;
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}
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// Append arguments onto message
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if (func && !func(ps, msg, data)) {
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dbus_message_unref(msg);
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return false;
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}
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// Send the message and flush the connection
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if (!dbus_connection_send(ps->dbus_conn, msg, NULL)) {
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printf_errf("(): Failed to send D-Bus signal.");
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dbus_message_unref(msg);
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return false;
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}
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dbus_connection_flush(ps->dbus_conn);
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// Free the message
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dbus_message_unref(msg);
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return true;
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}
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/**
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* Send a D-Bus reply.
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*
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* @param ps current session
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* @param srcmsg original message
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* @param func a function that modifies the built message, to, for example,
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* add an argument
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* @param data data pointer to pass to the function
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*/
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static bool
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cdbus_reply(session_t *ps, DBusMessage *srcmsg,
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bool (*func)(session_t *ps, DBusMessage *msg, const void *data),
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const void *data) {
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DBusMessage* msg = NULL;
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// Create a reply
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msg = dbus_message_new_method_return(srcmsg);
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if (!msg) {
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printf_errf("(): Failed to create D-Bus reply.");
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return false;
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}
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// Append arguments onto message
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if (func && !func(ps, msg, data)) {
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dbus_message_unref(msg);
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return false;
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}
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// Send the message and flush the connection
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if (!dbus_connection_send(ps->dbus_conn, msg, NULL)) {
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printf_errf("(): Failed to send D-Bus reply.");
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dbus_message_unref(msg);
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return false;
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}
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dbus_connection_flush(ps->dbus_conn);
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// Free the message
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dbus_message_unref(msg);
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return true;
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}
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/**
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* Send a D-Bus error reply.
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*
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* @param ps current session
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* @param msg the new error DBusMessage
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*/
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static bool
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cdbus_reply_errm(session_t *ps, DBusMessage *msg) {
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if (!msg) {
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printf_errf("(): Failed to create D-Bus reply.");
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return false;
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}
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// Send the message and flush the connection
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if (!dbus_connection_send(ps->dbus_conn, msg, NULL)) {
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printf_errf("(): Failed to send D-Bus reply.");
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dbus_message_unref(msg);
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return false;
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}
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dbus_connection_flush(ps->dbus_conn);
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// Free the message
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dbus_message_unref(msg);
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return true;
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}
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/**
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* Get n-th argument of a D-Bus message.
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*
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* @param count the position of the argument to get, starting from 0
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* @param type libdbus type number of the type
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* @param pdest pointer to the target
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* @return true if successful, false otherwise.
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*/
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static bool
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cdbus_msg_get_arg(DBusMessage *msg, int count, const int type, void *pdest) {
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assert(count >= 0);
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DBusMessageIter iter = { };
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if (!dbus_message_iter_init(msg, &iter)) {
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printf_errf("(): Message has no argument.");
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return false;
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}
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{
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const int oldcount = count;
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while (count) {
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if (!dbus_message_iter_next(&iter)) {
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printf_errf("(): Failed to find argument %d.", oldcount);
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return false;
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}
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--count;
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}
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}
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||||
if (type != dbus_message_iter_get_arg_type(&iter)) {
|
||||
printf_errf("(): Argument has incorrect type.");
|
||||
return false;
|
||||
}
|
||||
|
||||
dbus_message_iter_get_basic(&iter, pdest);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void
|
||||
cdbus_loop(session_t *ps) {
|
||||
dbus_connection_read_write(ps->dbus_conn, 0);
|
||||
DBusMessage *msg = NULL;
|
||||
while ((msg = dbus_connection_pop_message(ps->dbus_conn)))
|
||||
cdbus_process(ps, msg);
|
||||
}
|
||||
|
||||
/** @name Message processing
|
||||
*/
|
||||
///@{
|
||||
|
||||
/**
|
||||
* Process a message from D-Bus.
|
||||
*/
|
||||
static void
|
||||
cdbus_process(session_t *ps, DBusMessage *msg) {
|
||||
bool success = false;
|
||||
|
||||
#define cdbus_m_ismethod(method) \
|
||||
dbus_message_is_method_call(msg, CDBUS_INTERFACE_NAME, method)
|
||||
|
||||
if (cdbus_m_ismethod("reset")) {
|
||||
ps->reset = true;
|
||||
if (!dbus_message_get_no_reply(msg))
|
||||
cdbus_reply_bool(ps, msg, true);
|
||||
success = true;
|
||||
}
|
||||
else if (cdbus_m_ismethod("list_win")) {
|
||||
success = cdbus_process_list_win(ps, msg);
|
||||
}
|
||||
else if (cdbus_m_ismethod("win_get")) {
|
||||
success = cdbus_process_win_get(ps, msg);
|
||||
}
|
||||
else if (cdbus_m_ismethod("win_set")) {
|
||||
success = cdbus_process_win_set(ps, msg);
|
||||
}
|
||||
else if (cdbus_m_ismethod("find_win")) {
|
||||
success = cdbus_process_find_win(ps, msg);
|
||||
}
|
||||
else if (cdbus_m_ismethod("opts_get")) {
|
||||
success = cdbus_process_opts_get(ps, msg);
|
||||
}
|
||||
else if (cdbus_m_ismethod("opts_set")) {
|
||||
success = cdbus_process_opts_set(ps, msg);
|
||||
}
|
||||
#undef cdbus_m_ismethod
|
||||
else if (dbus_message_is_method_call(msg,
|
||||
"org.freedesktop.DBus.Introspectable", "Introspect")) {
|
||||
success = cdbus_process_introspect(ps, msg);
|
||||
}
|
||||
else if (dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameAcquired")
|
||||
|| dbus_message_is_signal(msg, "org.freedesktop.DBus", "NameLost")) {
|
||||
success = true;
|
||||
}
|
||||
else {
|
||||
if (DBUS_MESSAGE_TYPE_ERROR == dbus_message_get_type(msg)) {
|
||||
printf_errf("(): 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 {
|
||||
printf_errf("(): 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))
|
||||
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADMSG, CDBUS_ERROR_BADMSG_S);
|
||||
success = true;
|
||||
}
|
||||
|
||||
// If the message could not be processed, and an reply is expected, return
|
||||
// an empty reply.
|
||||
if (!success && DBUS_MESSAGE_TYPE_METHOD_CALL == dbus_message_get_type(msg)
|
||||
&& !dbus_message_get_no_reply(msg))
|
||||
cdbus_reply_err(ps, msg, CDBUS_ERROR_UNKNOWN, CDBUS_ERROR_UNKNOWN_S);
|
||||
|
||||
// Free the message
|
||||
dbus_message_unref(msg);
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a list_win D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_list_win(session_t *ps, DBusMessage *msg) {
|
||||
cdbus_reply(ps, msg, cdbus_apdarg_wids, NULL);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a win_get D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_win_get(session_t *ps, DBusMessage *msg) {
|
||||
cdbus_window_t wid = None;
|
||||
const char *target = NULL;
|
||||
DBusError err = { };
|
||||
|
||||
if (!dbus_message_get_args(msg, &err,
|
||||
CDBUS_TYPE_WINDOW, &wid,
|
||||
DBUS_TYPE_STRING, &target,
|
||||
DBUS_TYPE_INVALID)) {
|
||||
printf_errf("(): Failed to parse argument of \"win_get\" (%s).",
|
||||
err.message);
|
||||
dbus_error_free(&err);
|
||||
return false;
|
||||
}
|
||||
|
||||
win *w = find_win(ps, wid);
|
||||
|
||||
if (!w) {
|
||||
printf_errf("(): 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, apdarg_func) \
|
||||
if (!strcmp(MSTR(tgt), target)) { \
|
||||
apdarg_func(ps, msg, w->tgt); \
|
||||
return true; \
|
||||
}
|
||||
|
||||
cdbus_m_win_get_do(client_win, cdbus_reply_wid);
|
||||
cdbus_m_win_get_do(damaged, cdbus_reply_bool);
|
||||
cdbus_m_win_get_do(destroyed, cdbus_reply_bool);
|
||||
cdbus_m_win_get_do(window_type, cdbus_reply_enum);
|
||||
cdbus_m_win_get_do(wmwin, cdbus_reply_bool);
|
||||
cdbus_m_win_get_do(leader, cdbus_reply_wid);
|
||||
cdbus_m_win_get_do(focused_real, cdbus_reply_bool);
|
||||
cdbus_m_win_get_do(shadow_force, cdbus_reply_enum);
|
||||
cdbus_m_win_get_do(focused_force, cdbus_reply_enum);
|
||||
cdbus_m_win_get_do(invert_color_force, cdbus_reply_enum);
|
||||
if (!strcmp("map_state", target)) {
|
||||
cdbus_reply_bool(ps, msg, w->a.map_state);
|
||||
return true;
|
||||
}
|
||||
#undef cdbus_m_win_get_do
|
||||
|
||||
printf_errf("(): No matching target found.");
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a win_set D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_win_set(session_t *ps, DBusMessage *msg) {
|
||||
cdbus_window_t wid = None;
|
||||
const char *target = NULL;
|
||||
DBusError err = { };
|
||||
|
||||
if (!dbus_message_get_args(msg, &err,
|
||||
CDBUS_TYPE_WINDOW, &wid,
|
||||
DBUS_TYPE_STRING, &target,
|
||||
DBUS_TYPE_INVALID)) {
|
||||
printf_errf("(): Failed to parse argument of \"win_set\" (%s).",
|
||||
err.message);
|
||||
dbus_error_free(&err);
|
||||
return false;
|
||||
}
|
||||
|
||||
win *w = find_win(ps, wid);
|
||||
|
||||
if (!w) {
|
||||
printf_errf("(): Window %#010x not found.", wid);
|
||||
cdbus_reply_err(ps, msg, CDBUS_ERROR_BADWIN, CDBUS_ERROR_BADWIN_S, wid);
|
||||
return true;
|
||||
}
|
||||
|
||||
ps->ev_received = true;
|
||||
|
||||
#define cdbus_m_win_set_do(tgt, type, real_type) \
|
||||
if (!strcmp(MSTR(tgt), target)) { \
|
||||
real_type val; \
|
||||
if (!cdbus_msg_get_arg(msg, 2, type, &val)) \
|
||||
return false; \
|
||||
w->tgt = val; \
|
||||
goto cdbus_process_win_set_success; \
|
||||
}
|
||||
|
||||
if (!strcmp("shadow_force", target)) {
|
||||
cdbus_enum_t val = UNSET;
|
||||
if (!cdbus_msg_get_arg(msg, 2, CDBUS_TYPE_ENUM, &val))
|
||||
return false;
|
||||
win_set_shadow_force(ps, w, val);
|
||||
goto cdbus_process_win_set_success;
|
||||
}
|
||||
|
||||
if (!strcmp("focused_force", target)) {
|
||||
cdbus_enum_t val = UNSET;
|
||||
if (!cdbus_msg_get_arg(msg, 2, CDBUS_TYPE_ENUM, &val))
|
||||
return false;
|
||||
win_set_focused_force(ps, w, val);
|
||||
goto cdbus_process_win_set_success;
|
||||
}
|
||||
|
||||
if (!strcmp("invert_color_force", target)) {
|
||||
cdbus_enum_t val = UNSET;
|
||||
if (!cdbus_msg_get_arg(msg, 2, CDBUS_TYPE_ENUM, &val))
|
||||
return false;
|
||||
win_set_invert_color_force(ps, w, val);
|
||||
goto cdbus_process_win_set_success;
|
||||
}
|
||||
#undef cdbus_m_win_set_do
|
||||
|
||||
printf_errf("(): No matching target found.");
|
||||
|
||||
return false;
|
||||
|
||||
cdbus_process_win_set_success:
|
||||
if (!dbus_message_get_no_reply(msg))
|
||||
cdbus_reply_bool(ps, msg, true);
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a find_win D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_find_win(session_t *ps, DBusMessage *msg) {
|
||||
const char *target = NULL;
|
||||
|
||||
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target))
|
||||
return false;
|
||||
|
||||
Window wid = None;
|
||||
|
||||
// Find window by client window
|
||||
if (!strcmp("client", target)) {
|
||||
cdbus_window_t client = None;
|
||||
if (!cdbus_msg_get_arg(msg, 1, CDBUS_TYPE_WINDOW, &client))
|
||||
return false;
|
||||
win *w = find_toplevel(ps, client);
|
||||
if (w)
|
||||
wid = w->id;
|
||||
}
|
||||
// Find focused window
|
||||
else if (!strcmp("focused", target)) {
|
||||
win *w = find_focused(ps);
|
||||
if (w)
|
||||
wid = w->id;
|
||||
}
|
||||
else {
|
||||
printf_errf("(): No matching target found.");
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
cdbus_reply_wid(ps, msg, wid);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a opts_get D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_opts_get(session_t *ps, DBusMessage *msg) {
|
||||
const char *target = NULL;
|
||||
|
||||
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target))
|
||||
return false;
|
||||
|
||||
#define cdbus_m_opts_get_do(tgt, apdarg_func) \
|
||||
if (!strcmp(MSTR(tgt), target)) { \
|
||||
apdarg_func(ps, msg, ps->o.tgt); \
|
||||
return true; \
|
||||
}
|
||||
|
||||
cdbus_m_opts_get_do(display, cdbus_reply_string);
|
||||
cdbus_m_opts_get_do(mark_wmwin_focused, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(mark_ovredir_focused, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(fork_after_register, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(detect_rounded_corners, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(paint_on_overlay, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(unredir_if_possible, cdbus_reply_bool);
|
||||
cdbus_m_opts_get_do(logpath, cdbus_reply_string);
|
||||
cdbus_m_opts_get_do(synchronize, cdbus_reply_bool);
|
||||
|
||||
cdbus_m_opts_get_do(clear_shadow, cdbus_reply_bool);
|
||||
#undef cdbus_m_opts_get_do
|
||||
|
||||
printf_errf("(): No matching target found.");
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process a opts_set D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_opts_set(session_t *ps, DBusMessage *msg) {
|
||||
const char *target = NULL;
|
||||
|
||||
if (!cdbus_msg_get_arg(msg, 0, DBUS_TYPE_STRING, &target))
|
||||
return false;
|
||||
|
||||
#define cdbus_m_opts_set_do(tgt, type, real_type) \
|
||||
if (!strcmp(MSTR(tgt), target)) { \
|
||||
real_type val; \
|
||||
if (!cdbus_msg_get_arg(msg, 1, type, &val)) \
|
||||
return false; \
|
||||
ps->o.tgt = val; \
|
||||
goto cdbus_process_opts_set_success; \
|
||||
}
|
||||
|
||||
// unredir_if_possible
|
||||
if (!strcmp("unredir_if_possible", target)) {
|
||||
dbus_bool_t val = FALSE;
|
||||
if (!cdbus_msg_get_arg(msg, 1, DBUS_TYPE_BOOLEAN, &val))
|
||||
return false;
|
||||
if (ps->o.unredir_if_possible != val) {
|
||||
ps->o.unredir_if_possible = val;
|
||||
ps->ev_received = true;
|
||||
}
|
||||
goto cdbus_process_opts_set_success;
|
||||
}
|
||||
|
||||
// clear_shadow
|
||||
if (!strcmp("clear_shadow", target)) {
|
||||
dbus_bool_t val = FALSE;
|
||||
if (!cdbus_msg_get_arg(msg, 1, DBUS_TYPE_BOOLEAN, &val))
|
||||
return false;
|
||||
if (ps->o.clear_shadow != val) {
|
||||
ps->o.clear_shadow = val;
|
||||
force_repaint(ps);
|
||||
}
|
||||
goto cdbus_process_opts_set_success;
|
||||
}
|
||||
#undef cdbus_m_opts_set_do
|
||||
|
||||
printf_errf("(): No matching target found.");
|
||||
|
||||
return false;
|
||||
|
||||
cdbus_process_opts_set_success:
|
||||
if (!dbus_message_get_no_reply(msg))
|
||||
cdbus_reply_bool(ps, msg, true);
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Process an Introspect D-Bus request.
|
||||
*/
|
||||
static bool
|
||||
cdbus_process_introspect(session_t *ps, DBusMessage *msg) {
|
||||
const static 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='" 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"
|
||||
" <method name='reset' />\n"
|
||||
" </interface>\n"
|
||||
"</node>\n";
|
||||
|
||||
cdbus_reply_string(ps, msg, str_introspect);
|
||||
|
||||
return true;
|
||||
}
|
||||
///@}
|
||||
|
||||
/** @name Core callbacks
|
||||
*/
|
||||
///@{
|
||||
void
|
||||
cdbus_ev_win_added(session_t *ps, win *w) {
|
||||
if (ps->dbus_conn)
|
||||
cdbus_signal_wid(ps, "win_added", w->id);
|
||||
}
|
||||
|
||||
void
|
||||
cdbus_ev_win_destroyed(session_t *ps, win *w) {
|
||||
if (ps->dbus_conn)
|
||||
cdbus_signal_wid(ps, "win_destroyed", w->id);
|
||||
}
|
||||
|
||||
void
|
||||
cdbus_ev_win_mapped(session_t *ps, win *w) {
|
||||
if (ps->dbus_conn)
|
||||
cdbus_signal_wid(ps, "win_mapped", w->id);
|
||||
}
|
||||
|
||||
void
|
||||
cdbus_ev_win_unmapped(session_t *ps, win *w) {
|
||||
if (ps->dbus_conn)
|
||||
cdbus_signal_wid(ps, "win_unmapped", w->id);
|
||||
}
|
||||
//!@}
|
||||
@ -0,0 +1,213 @@
|
||||
/*
|
||||
* Compton - a compositor for X11
|
||||
*
|
||||
* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
|
||||
*
|
||||
* Copyright (c) 2011-2013, Christopher Jeffrey
|
||||
* See LICENSE for more information.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "common.h"
|
||||
#include <ctype.h>
|
||||
|
||||
#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 "Something wrong in arguments?"
|
||||
#define CDBUS_ERROR_BADWIN CDBUS_ERROR_PREFIX ".bad_window"
|
||||
#define CDBUS_ERROR_BADWIN_S "Requested window %#010lx not found."
|
||||
#define CDBUS_ERROR_FORBIDDEN CDBUS_ERROR_PREFIX ".forbidden"
|
||||
#define CDBUS_ERROR_FORBIDDEN_S "Incorrect password, access denied."
|
||||
|
||||
// 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 uint16_t cdbus_enum_t;
|
||||
#define CDBUS_TYPE_ENUM DBUS_TYPE_UINT16
|
||||
#define CDBUS_TYPE_ENUM_STR DBUS_TYPE_UINT16_AS_STRING
|
||||
|
||||
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 bool
|
||||
cdbus_callback_handle_timeout(session_t *ps, timeout_t *ptmout);
|
||||
|
||||
/**
|
||||
* Determine the poll condition of a DBusWatch.
|
||||
*/
|
||||
static inline short
|
||||
cdbus_get_watch_cond(DBusWatch *watch) {
|
||||
const unsigned flags = dbus_watch_get_flags(watch);
|
||||
short condition = POLLERR | POLLHUP;
|
||||
if (flags & DBUS_WATCH_READABLE)
|
||||
condition |= POLLIN;
|
||||
if (flags & DBUS_WATCH_WRITABLE)
|
||||
condition |= POLLOUT;
|
||||
|
||||
return condition;
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
static bool
|
||||
cdbus_apdarg_bool(session_t *ps, DBusMessage *msg, const void *data);
|
||||
|
||||
static bool
|
||||
cdbus_apdarg_wid(session_t *ps, DBusMessage *msg, const void *data);
|
||||
|
||||
static bool
|
||||
cdbus_apdarg_enum(session_t *ps, DBusMessage *msg, const void *data);
|
||||
|
||||
static bool
|
||||
cdbus_apdarg_string(session_t *ps, DBusMessage *msg, const void *data);
|
||||
|
||||
static bool
|
||||
cdbus_apdarg_wids(session_t *ps, DBusMessage *msg, const void *data);
|
||||
|
||||
/** @name DBus signal sending
|
||||
*/
|
||||
///@{
|
||||
|
||||
static bool
|
||||
cdbus_signal(session_t *ps, const char *name,
|
||||
bool (*func)(session_t *ps, DBusMessage *msg, const void *data),
|
||||
const void *data);
|
||||
|
||||
/**
|
||||
* Send a signal with no argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_signal_noarg(session_t *ps, const char *name) {
|
||||
return cdbus_signal(ps, name, NULL, NULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a signal with a Window ID as argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_signal_wid(session_t *ps, const char *name, Window wid) {
|
||||
return cdbus_signal(ps, name, cdbus_apdarg_wid, &wid);
|
||||
}
|
||||
|
||||
///@}
|
||||
|
||||
/** @name DBus reply sending
|
||||
*/
|
||||
///@{
|
||||
|
||||
static bool
|
||||
cdbus_reply(session_t *ps, DBusMessage *srcmsg,
|
||||
bool (*func)(session_t *ps, DBusMessage *msg, const void *data),
|
||||
const void *data);
|
||||
|
||||
static bool
|
||||
cdbus_reply_errm(session_t *ps, DBusMessage *msg);
|
||||
|
||||
#define cdbus_reply_err(ps, srcmsg, err_name, err_format, ...) \
|
||||
cdbus_reply_errm((ps), dbus_message_new_error_printf((srcmsg), (err_name), (err_format), ## __VA_ARGS__))
|
||||
|
||||
/**
|
||||
* Send a reply with no argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_reply_noarg(session_t *ps, DBusMessage *srcmsg) {
|
||||
return cdbus_reply(ps, srcmsg, NULL, NULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a reply with a bool argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_reply_bool(session_t *ps, DBusMessage *srcmsg, bool bval) {
|
||||
return cdbus_reply(ps, srcmsg, cdbus_apdarg_bool, &bval);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a reply with a wid argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_reply_wid(session_t *ps, DBusMessage *srcmsg, Window wid) {
|
||||
return cdbus_reply(ps, srcmsg, cdbus_apdarg_wid, &wid);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a reply with a string argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_reply_string(session_t *ps, DBusMessage *srcmsg, const char *str) {
|
||||
return cdbus_reply(ps, srcmsg, cdbus_apdarg_string, str);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a reply with a enum argument.
|
||||
*/
|
||||
static inline bool
|
||||
cdbus_reply_enum(session_t *ps, DBusMessage *srcmsg, cdbus_enum_t eval) {
|
||||
return cdbus_reply(ps, srcmsg, cdbus_apdarg_enum, &eval);
|
||||
}
|
||||
|
||||
///@}
|
||||
|
||||
static bool
|
||||
cdbus_msg_get_arg(DBusMessage *msg, int count, const int type, void *pdest);
|
||||
|
||||
/**
|
||||
* Return a string representation of a D-Bus message type.
|
||||
*/
|
||||
static inline const char *
|
||||
cdbus_repr_msgtype(DBusMessage *msg) {
|
||||
return dbus_message_type_to_string(dbus_message_get_type(msg));
|
||||
}
|
||||
|
||||
/** @name Message processing
|
||||
*/
|
||||
///@{
|
||||
|
||||
static void
|
||||
cdbus_process(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_list_win(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_win_get(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_win_set(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_find_win(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_opts_get(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_opts_set(session_t *ps, DBusMessage *msg);
|
||||
|
||||
static bool
|
||||
cdbus_process_introspect(session_t *ps, DBusMessage *msg);
|
||||
|
||||
///@}
|
||||
Loading…
Reference in New Issue