openbox/openbox/session.c
2003-11-11 11:59:50 +00:00

556 lines
16 KiB
C

/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
session.c for the Openbox window manager
Copyright (c) 2003 Ben Jansens
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
See the COPYING file for a copy of the GNU General Public License.
*/
/* This session code is largely inspired by metacity code. */
#ifndef USE_SM
#include "session.h"
#include "client.h"
GList *session_saved_state;
void session_startup(gint *argc, gchar ***argv) {}
void session_shutdown() {}
GList* session_state_find(ObClient *c) { return NULL; }
gboolean session_state_cmp(ObSessionState *s, ObClient *c) { return FALSE; }
void session_state_free(ObSessionState *state) {}
#else
#include "debug.h"
#include "openbox.h"
#include "session.h"
#include "client.h"
#include "prop.h"
#include "gettext.h"
#include "parser/parse.h"
#include <time.h>
#include <errno.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif
#include <X11/SM/SMlib.h>
GList *session_saved_state;
static gboolean sm_disable;
static SmcConn sm_conn;
static gchar *save_file;
static gchar *sm_id;
static gint sm_argc;
static gchar **sm_argv;
static gchar *sm_sessions_path;
static void session_load(gchar *path);
static gboolean session_save();
static void sm_save_yourself(SmcConn conn, SmPointer data, gint save_type,
Bool shutdown, gint interact_style, Bool fast);
static void sm_die(SmcConn conn, SmPointer data);
static void sm_save_complete(SmcConn conn, SmPointer data);
static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
static void save_commands()
{
SmProp *props[2];
SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
gint i;
prop_cmd.vals = g_new(SmPropValue, sm_argc);
prop_cmd.num_vals = sm_argc;
for (i = 0; i < sm_argc; ++i) {
prop_cmd.vals[i].value = sm_argv[i];
prop_cmd.vals[i].length = strlen(sm_argv[i]);
}
prop_res.vals = g_new(SmPropValue, sm_argc + 2);
prop_res.num_vals = sm_argc + 2;
for (i = 0; i < sm_argc; ++i) {
prop_res.vals[i].value = sm_argv[i];
prop_res.vals[i].length = strlen(sm_argv[i]);
}
prop_res.vals[i].value = "--sm-save-file";
prop_res.vals[i++].length = strlen("--sm-save-file");
prop_res.vals[i].value = save_file;
prop_res.vals[i++].length = strlen(save_file);
props[0] = &prop_res;
props[1] = &prop_cmd;
SmcSetProperties(sm_conn, 2, props);
g_free(prop_res.vals);
g_free(prop_cmd.vals);
}
static void remove_args(gint *argc, gchar ***argv, gint index, gint num)
{
gint i;
for (i = index; i < index + num; ++i)
(*argv)[i] = (*argv)[i+num];
*argc -= num;
}
static void parse_args(gint *argc, gchar ***argv)
{
gint i;
for (i = 1; i < *argc; ++i) {
if (!strcmp((*argv)[i], "--sm-client-id")) {
if (i == *argc - 1) /* no args left */
g_printerr(_("--sm-client-id requires an argument\n"));
else {
sm_id = g_strdup((*argv)[i+1]);
remove_args(argc, argv, i, 2);
++i;
}
} else if (!strcmp((*argv)[i], "--sm-save-file")) {
if (i == *argc - 1) /* no args left */
g_printerr(_("--sm-save-file requires an argument\n"));
else {
save_file = g_strdup((*argv)[i+1]);
remove_args(argc, argv, i, 2);
++i;
}
} else if (!strcmp((*argv)[i], "--sm-disable")) {
sm_disable = TRUE;
remove_args(argc, argv, i, 1);
}
}
}
void session_startup(gint *argc, gchar ***argv)
{
#define SM_ERR_LEN 1024
SmcCallbacks cb;
gchar sm_err[SM_ERR_LEN];
parse_args(argc, argv);
if (sm_disable)
return;
sm_sessions_path = g_build_filename(parse_xdg_data_home_path(),
"openbox", "sessions", NULL);
if (!parse_mkdir_path(sm_sessions_path, 0700))
g_warning(_("Unable to make directory '%s': %s"),
sm_sessions_path, g_strerror(errno));
if (save_file)
session_load(save_file);
else {
gchar *filename;
/* this algo is from metacity */
filename = g_strdup_printf("%d-%d-%u.obs",
(gint) time(NULL),
(gint) getpid(),
g_random_int());
save_file = g_build_filename(sm_sessions_path, filename, NULL);
g_free(filename);
}
sm_argc = *argc;
sm_argv = *argv;
cb.save_yourself.callback = sm_save_yourself;
cb.save_yourself.client_data = NULL;
cb.die.callback = sm_die;
cb.die.client_data = NULL;
cb.save_complete.callback = sm_save_complete;
cb.save_complete.client_data = NULL;
cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
cb.shutdown_cancelled.client_data = NULL;
sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
SmcSaveYourselfProcMask |
SmcDieProcMask |
SmcSaveCompleteProcMask |
SmcShutdownCancelledProcMask,
&cb, sm_id, &sm_id,
SM_ERR_LEN, sm_err);
if (sm_conn == NULL)
ob_debug("Failed to connect to session manager: %s\n", sm_err);
else {
SmPropValue val_prog;
SmPropValue val_uid;
SmPropValue val_hint;
SmPropValue val_pri;
SmPropValue val_pid;
SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
SmProp *props[6];
gchar hint, pri;
gchar pid[32];
val_prog.value = sm_argv[0];
val_prog.length = strlen(sm_argv[0]);
val_uid.value = g_strdup(g_get_user_name());
val_uid.length = strlen(val_uid.value);
hint = SmRestartImmediately;
val_hint.value = &hint;
val_hint.length = 1;
g_snprintf(pid, sizeof(pid), "%ld", (glong) getpid());
val_pid.value = pid;
val_pid.length = strlen(pid);
/* priority with gnome-session-manager, low to run before other apps */
pri = 20;
val_pri.value = &pri;
val_pri.length = 1;
prop_prog.vals = &val_prog;
prop_uid.vals = &val_uid;
prop_hint.vals = &val_hint;
prop_pid.vals = &val_pid;
prop_pri.vals = &val_pri;
props[0] = &prop_prog;
props[1] = &prop_uid;
props[2] = &prop_hint;
props[3] = &prop_pid;
props[4] = &prop_pri;
SmcSetProperties(sm_conn, 5, props);
g_free(val_uid.value);
save_commands();
}
}
void session_shutdown()
{
g_free(sm_sessions_path);
g_free(save_file);
g_free(sm_id);
if (sm_conn) {
SmPropValue val_hint;
SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
SmProp *props[1];
gulong hint;
/* when we exit, we want to reset this to a more friendly state */
hint = SmRestartIfRunning;
val_hint.value = &hint;
val_hint.length = 1;
prop_hint.vals = &val_hint;
props[0] = &prop_hint;
SmcSetProperties(sm_conn, 1, props);
SmcCloseConnection(sm_conn, 0, NULL);
while (session_saved_state) {
session_state_free(session_saved_state->data);
session_saved_state = g_list_delete_link(session_saved_state,
session_saved_state);
}
}
}
static void sm_save_yourself_phase2(SmcConn conn, SmPointer data)
{
gboolean success;
success = session_save();
save_commands();
SmcSaveYourselfDone(conn, success);
}
static void sm_save_yourself(SmcConn conn, SmPointer data, gint save_type,
Bool shutdown, gint interact_style, Bool fast)
{
if (!SmcRequestSaveYourselfPhase2(conn, sm_save_yourself_phase2, data)) {
ob_debug("SAVE YOURSELF PHASE 2 failed\n");
SmcSaveYourselfDone(conn, FALSE);
}
}
static void sm_die(SmcConn conn, SmPointer data)
{
ob_exit(0);
}
static void sm_save_complete(SmcConn conn, SmPointer data)
{
}
static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
{
}
static gboolean session_save()
{
FILE *f;
GList *it;
gboolean success = TRUE;
f = fopen(save_file, "w");
if (!f) {
success = FALSE;
g_warning("unable to save the session to %s: %s",
save_file, g_strerror(errno));
} else {
guint stack_pos = 0;
fprintf(f, "<?xml version=\"1.0\"?>\n\n");
fprintf(f, "<openbox_session id=\"%s\">\n\n", sm_id);
for (it = stacking_list; it; it = g_list_next(it)) {
gint prex, prey, prew, preh;
ObClient *c;
gchar *t;
if (WINDOW_IS_CLIENT(it->data))
c = WINDOW_AS_CLIENT(it->data);
else
continue;
if (!client_normal(c))
continue;
if (!c->sm_client_id)
continue;
prex = c->area.x;
prey = c->area.y;
prew = c->area.width;
preh = c->area.height;
if (c->fullscreen) {
prex = c->pre_fullscreen_area.x;
prey = c->pre_fullscreen_area.x;
prew = c->pre_fullscreen_area.width;
preh = c->pre_fullscreen_area.height;
}
if (c->max_horz) {
prex = c->pre_max_area.x;
prew = c->pre_max_area.width;
}
if (c->max_vert) {
prey = c->pre_max_area.y;
preh = c->pre_max_area.height;
}
fprintf(f, "<window id=\"%s\">\n", c->sm_client_id);
t = g_markup_escape_text(c->name, -1);
fprintf(f, "\t<name>%s</name>\n", t);
g_free(t);
t = g_markup_escape_text(c->class, -1);
fprintf(f, "\t<class>%s</class>\n", t);
g_free(t);
t = g_markup_escape_text(c->role, -1);
fprintf(f, "\t<role>%s</role>\n", t);
g_free(t);
fprintf(f, "\t<desktop>%d</desktop>\n", c->desktop);
fprintf(f, "\t<stacking>%d</stacking>\n", stack_pos);
fprintf(f, "\t<x>%d</x>\n", prex);
fprintf(f, "\t<y>%d</y>\n", prey);
fprintf(f, "\t<width>%d</width>\n", prew);
fprintf(f, "\t<height>%d</height>\n", preh);
if (c->shaded)
fprintf(f, "\t<shaded />\n");
if (c->iconic)
fprintf(f, "\t<iconic />\n");
if (c->skip_pager)
fprintf(f, "\t<skip_pager />\n");
if (c->skip_taskbar)
fprintf(f, "\t<skip_taskbar />\n");
if (c->fullscreen)
fprintf(f, "\t<fullscreen />\n");
if (c->above)
fprintf(f, "\t<above />\n");
if (c->below)
fprintf(f, "\t<below />\n");
if (c->max_horz)
fprintf(f, "\t<max_horz />\n");
if (c->max_vert)
fprintf(f, "\t<max_vert />\n");
fprintf(f, "</window>\n\n");
++stack_pos;
}
fprintf(f, "</openbox_session>\n");
if (fflush(f)) {
success = FALSE;
g_warning("error while saving the session to %s: %s",
save_file, g_strerror(errno));
}
fclose(f);
}
return success;
}
void session_state_free(ObSessionState *state)
{
if (state) {
g_free(state->id);
g_free(state->name);
g_free(state->class);
g_free(state->role);
g_free(state);
}
}
gboolean session_state_cmp(ObSessionState *s, ObClient *c)
{
return (c->sm_client_id &&
!strcmp(s->id, c->sm_client_id) &&
!strcmp(s->name, c->name) &&
!strcmp(s->class, c->class) &&
!strcmp(s->role, c->role));
}
GList* session_state_find(ObClient *c)
{
GList *it;
for (it = session_saved_state; it; it = g_list_next(it)) {
ObSessionState *s = it->data;
if (!s->matched && session_state_cmp(s, c)) {
s->matched = TRUE;
break;
}
}
return it;
}
static gint stack_sort(const ObSessionState *s1, const ObSessionState *s2)
{
return s1->stacking - s2->stacking;
}
static void session_load(gchar *path)
{
xmlDocPtr doc;
xmlNodePtr node, n;
gchar *id;
if (!parse_load(path, "openbox_session", &doc, &node))
return;
if (!parse_attr_string("id", node, &id))
return;
g_free(sm_id);
sm_id = id;
node = parse_find_node("window", node->children);
while (node) {
ObSessionState *state;
state = g_new0(ObSessionState, 1);
if (!parse_attr_string("id", node, &state->id))
goto session_load_bail;
if (!(n = parse_find_node("name", node->children)))
goto session_load_bail;
state->name = parse_string(doc, n);
if (!(n = parse_find_node("class", node->children)))
goto session_load_bail;
state->class = parse_string(doc, n);
if (!(n = parse_find_node("role", node->children)))
goto session_load_bail;
state->role = parse_string(doc, n);
if (!(n = parse_find_node("stacking", node->children)))
goto session_load_bail;
state->stacking = parse_int(doc, n);
if (!(n = parse_find_node("desktop", node->children)))
goto session_load_bail;
state->desktop = parse_int(doc, n);
if (!(n = parse_find_node("x", node->children)))
goto session_load_bail;
state->x = parse_int(doc, n);
if (!(n = parse_find_node("y", node->children)))
goto session_load_bail;
state->y = parse_int(doc, n);
if (!(n = parse_find_node("width", node->children)))
goto session_load_bail;
state->w = parse_int(doc, n);
if (!(n = parse_find_node("height", node->children)))
goto session_load_bail;
state->h = parse_int(doc, n);
state->shaded =
parse_find_node("shaded", node->children) != NULL;
state->iconic =
parse_find_node("iconic", node->children) != NULL;
state->skip_pager =
parse_find_node("skip_pager", node->children) != NULL;
state->skip_taskbar =
parse_find_node("skip_taskbar", node->children) != NULL;
state->fullscreen =
parse_find_node("fullscreen", node->children) != NULL;
state->above =
parse_find_node("above", node->children) != NULL;
state->below =
parse_find_node("below", node->children) != NULL;
state->max_horz =
parse_find_node("max_horz", node->children) != NULL;
state->max_vert =
parse_find_node("max_vert", node->children) != NULL;
/* save this */
session_saved_state = g_list_prepend(session_saved_state, state);
goto session_load_ok;
session_load_bail:
session_state_free(state);
session_load_ok:
node = parse_find_node("window", node->next);
}
/* sort them by their stacking order */
session_saved_state = g_list_sort(session_saved_state,
(GCompareFunc)stack_sort);
xmlFreeDoc(doc);
}
#endif