openbox/session.c (raw)
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/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- session.c for the Openbox window manager Copyright (c) 2003-2007 Dana 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. */ #include "session.h" struct _ObClient; GList *session_saved_state = NULL; gint session_desktop = -1; gint session_num_desktops = 0; gboolean session_desktop_layout_present = FALSE; ObDesktopLayout session_desktop_layout; GSList *session_desktop_names = NULL; #ifndef USE_SM void session_startup(gint argc, gchar **argv) {} void session_shutdown(gboolean permanent) {} GList* session_state_find(struct _ObClient *c) { return NULL; } #else #include "debug.h" #include "openbox.h" #include "client.h" #include "prop.h" #include "focus.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> #define SM_ERR_LEN 1024 static SmcConn sm_conn; static gint sm_argc; static gchar **sm_argv; /* Data saved from the first level save yourself */ typedef struct { ObClient *focus_client; gint desktop; } ObSMSaveData; static gboolean session_connect(); static void session_load_file(const gchar *path); static gboolean session_save_to_file(const ObSMSaveData *savedata); static void session_setup_program(); static void session_setup_user(); static void session_setup_restart_style(gboolean restart); static void session_setup_pid(); static void session_setup_priority(); static void session_setup_clone_command(); static void session_setup_restart_command(); 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 gboolean session_state_cmp(ObSessionState *s, ObClient *c); static void session_state_free(ObSessionState *state); void session_startup(gint argc, gchar **argv) { gchar *dir; if (!ob_sm_use) return; sm_argc = argc; sm_argv = argv; dir = g_build_filename(parse_xdg_data_home_path(), "openbox", "sessions", NULL); if (!parse_mkdir_path(dir, 0700)) { g_message(_("Unable to make directory '%s': %s"), dir, g_strerror(errno)); } if (ob_sm_save_file != NULL) { if (ob_sm_restore) { ob_debug_type(OB_DEBUG_SM, "Loading from session file %s\n", ob_sm_save_file); session_load_file(ob_sm_save_file); } } else { gchar *filename; /* this algo is from metacity */ filename = g_strdup_printf("%u-%u-%u.obs", (guint)time(NULL), (guint)getpid(), g_random_int()); ob_sm_save_file = g_build_filename(dir, filename, NULL); g_free(filename); } if (session_connect()) { session_setup_program(); session_setup_user(); session_setup_restart_style(TRUE); session_setup_pid(); session_setup_priority(); session_setup_clone_command(); } g_free(dir); } void session_shutdown(gboolean permanent) { if (!ob_sm_use) return; if (sm_conn) { /* if permanent is true then we will change our session state so that the SM won't run us again */ if (permanent) session_setup_restart_style(FALSE); 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); } } } /*! Connect to the session manager and set up our callback functions */ static gboolean session_connect() { SmcCallbacks cb; gchar *oldid; gchar sm_err[SM_ERR_LEN]; /* set up our callback functions */ 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; /* connect to the server */ oldid = ob_sm_id; ob_debug_type(OB_DEBUG_SM, "Connecting to SM with id: %s\n", oldid ? oldid : "(null)"); sm_conn = SmcOpenConnection(NULL, NULL, 1, 0, SmcSaveYourselfProcMask | SmcDieProcMask | SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask, &cb, oldid, &ob_sm_id, SM_ERR_LEN-1, sm_err); g_free(oldid); ob_debug_type(OB_DEBUG_SM, "Connected to SM with id: %s\n", ob_sm_id); if (sm_conn == NULL) ob_debug("Failed to connect to session manager: %s\n", sm_err); return sm_conn != NULL; } static void session_setup_program() { SmPropValue vals = { .value = sm_argv[0], .length = strlen(sm_argv[0]) + 1 }; SmProp prop = { .name = g_strdup(SmProgram), .type = g_strdup(SmARRAY8), .num_vals = 1, .vals = &vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting program: %s\n", sm_argv[0]); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); } static void session_setup_user() { char *user = g_strdup(g_get_user_name()); SmPropValue vals = { .value = user, .length = strlen(user) + 1 }; SmProp prop = { .name = g_strdup(SmUserID), .type = g_strdup(SmARRAY8), .num_vals = 1, .vals = &vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting user: %s\n", user); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); g_free(user); } static void session_setup_restart_style(gboolean restart) { gchar restart_hint = restart ? SmRestartImmediately : SmRestartIfRunning; SmPropValue vals = { .value = &restart_hint, .length = 1 }; SmProp prop = { .name = g_strdup(SmRestartStyleHint), .type = g_strdup(SmCARD8), .num_vals = 1, .vals = &vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting restart: %d\n", restart); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); } static void session_setup_pid() { gchar *pid = g_strdup_printf("%ld", (glong) getpid()); SmPropValue vals = { .value = pid, .length = strlen(pid) + 1 }; SmProp prop = { .name = g_strdup(SmProcessID), .type = g_strdup(SmARRAY8), .num_vals = 1, .vals = &vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting pid: %s\n", pid); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); g_free(pid); } /*! This is a gnome-session-manager extension */ static void session_setup_priority() { gchar priority = 20; /* 20 is a lower prioity to run before other apps */ SmPropValue vals = { .value = &priority, .length = 1 }; SmProp prop = { .name = g_strdup("_GSM_Priority"), .type = g_strdup(SmCARD8), .num_vals = 1, .vals = &vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting priority: %d\n", priority); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); } static void session_setup_clone_command() { gint i; SmPropValue *vals = g_new(SmPropValue, sm_argc); SmProp prop = { .name = g_strdup(SmCloneCommand), .type = g_strdup(SmLISTofARRAY8), .num_vals = sm_argc, .vals = vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting clone command: (%d)\n", sm_argc); for (i = 0; i < sm_argc; ++i) { vals[i].value = sm_argv[i]; vals[i].length = strlen(sm_argv[i]) + 1; ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i].value); } SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); g_free(vals); } static void session_setup_restart_command() { gint i; SmPropValue *vals = g_new(SmPropValue, sm_argc + 4); SmProp prop = { .name = g_strdup(SmRestartCommand), .type = g_strdup(SmLISTofARRAY8), .num_vals = sm_argc + 4, .vals = vals }; SmProp *list = ∝ ob_debug_type(OB_DEBUG_SM, "Setting restart command: (%d)\n", sm_argc+4); for (i = 0; i < sm_argc; ++i) { vals[i].value = sm_argv[i]; vals[i].length = strlen(sm_argv[i]) + 1; ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i].value); } vals[i].value = g_strdup("--sm-client-id"); vals[i].length = strlen("--sm-client-id") + 1; vals[i+1].value = ob_sm_id; vals[i+1].length = strlen(ob_sm_id) + 1; ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i].value); ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i+1].value); vals[i+2].value = g_strdup("--sm-save-file"); vals[i+2].length = strlen("--sm-save-file") + 1; vals[i+3].value = ob_sm_save_file; vals[i+3].length = strlen(ob_sm_save_file) + 1; ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i+2].value); ob_debug_type(OB_DEBUG_SM, " %s\n", vals[i+3].value); SmcSetProperties(sm_conn, 1, &list); g_free(prop.name); g_free(prop.type); g_free(vals[i].value); g_free(vals[i+2].value); g_free(vals); } static ObSMSaveData *sm_save_get_data() { ObSMSaveData *savedata = g_new0(ObSMSaveData, 1); /* save the active desktop and client. we don't bother to preemptively save the other desktop state like number and names of desktops, cuz those shouldn't be changing during the save.. */ savedata->focus_client = focus_client; savedata->desktop = screen_desktop; return savedata; } static void sm_save_yourself_2(SmcConn conn, SmPointer data) { gboolean success; ObSMSaveData *savedata = data; /* save the current state */ ob_debug_type(OB_DEBUG_SM, "Session save phase 2 requested\n"); ob_debug_type(OB_DEBUG_SM, " Saving session to file '%s'\n", ob_sm_save_file); if (savedata == NULL) savedata = sm_save_get_data(); success = session_save_to_file(savedata); g_free(savedata); /* tell the session manager how to restore this state */ if (success) session_setup_restart_command(); ob_debug_type(OB_DEBUG_SM, "Saving is done (success = %d)\n", success); SmcSaveYourselfDone(conn, success); } static void sm_save_yourself(SmcConn conn, SmPointer data, gint save_type, Bool shutdown, gint interact_style, Bool fast) { ObSMSaveData *savedata = NULL; gchar *vendor; ob_debug_type(OB_DEBUG_SM, "Session save requested\n"); vendor = SmcVendor(sm_conn); ob_debug_type(OB_DEBUG_SM, "Session manager's vendor: %s\n", vendor); if (!strcmp(vendor, "KDE")) { /* ksmserver guarantees that phase 1 will complete before allowing any clients interaction, so we can save this sanely here before they get messed up from interaction */ savedata = sm_save_get_data(); } free(vendor); if (!SmcRequestSaveYourselfPhase2(conn, sm_save_yourself_2, savedata)) { ob_debug_type(OB_DEBUG_SM, "Requst for phase 2 failed\n"); g_free(savedata); SmcSaveYourselfDone(conn, FALSE); } } static void sm_die(SmcConn conn, SmPointer data) { ob_debug_type(OB_DEBUG_SM, "Die requested\n"); ob_exit(0); } static void sm_save_complete(SmcConn conn, SmPointer data) { ob_debug_type(OB_DEBUG_SM, "Save complete\n"); } static void sm_shutdown_cancelled(SmcConn conn, SmPointer data) { ob_debug_type(OB_DEBUG_SM, "Shutdown cancelled\n"); } static gboolean session_save_to_file(const ObSMSaveData *savedata) { FILE *f; GList *it; gboolean success = TRUE; f = fopen(ob_sm_save_file, "w"); if (!f) { success = FALSE; g_message(_("Unable to save the session to '%s': %s"), ob_sm_save_file, g_strerror(errno)); } else { fprintf(f, "<?xml version=\"1.0\"?>\n\n"); fprintf(f, "<openbox_session>\n\n"); fprintf(f, "<desktop>%d</desktop>\n", savedata->desktop); fprintf(f, "<numdesktops>%d</numdesktops>\n", screen_num_desktops); fprintf(f, "<desktoplayout>\n"); fprintf(f, " <orientation>%d</orientation>\n", screen_desktop_layout.orientation); fprintf(f, " <startcorner>%d</startcorner>\n", screen_desktop_layout.start_corner); fprintf(f, " <columns>%d</columns>\n", screen_desktop_layout.columns); fprintf(f, " <rows>%d</rows>\n", screen_desktop_layout.rows); fprintf(f, "</desktoplayout>\n"); if (screen_desktop_names) { gint i; fprintf(f, "<desktopnames>\n"); for (i = 0; screen_desktop_names[i]; ++i) fprintf(f, " <name>%s</name>\n", screen_desktop_names[i]); fprintf(f, "</desktopnames>\n"); } /* they are ordered top to bottom in stacking order */ 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) { ob_debug_type(OB_DEBUG_SM, "Client %s does not have a " "session id set\n", c->title); if (!c->wm_command) { ob_debug_type(OB_DEBUG_SM, "Client %s does not have an " "oldskool wm_command set either. We won't " "be saving its data\n", c->title); continue; } } ob_debug_type(OB_DEBUG_SM, "Saving state for client %s\n", c->title); 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; } if (c->sm_client_id) fprintf(f, "<window id=\"%s\">\n", c->sm_client_id); else fprintf(f, "<window command=\"%s\">\n", c->wm_command); 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<windowtype>%d</windowtype>\n", c->type); fprintf(f, "\t<desktop>%d</desktop>\n", c->desktop); 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"); if (c->undecorated) fprintf(f, "\t<undecorated />\n"); if (savedata->focus_client == c) fprintf(f, "\t<focused />\n"); fprintf(f, "</window>\n\n"); } fprintf(f, "</openbox_session>\n"); if (fflush(f)) { success = FALSE; g_message(_("Error while saving the session to '%s': %s"), ob_sm_save_file, g_strerror(errno)); } fclose(f); } return success; } static void session_state_free(ObSessionState *state) { if (state) { g_free(state->id); g_free(state->command); g_free(state->name); g_free(state->class); g_free(state->role); g_free(state); } } static gboolean session_state_cmp(ObSessionState *s, ObClient *c) { ob_debug_type(OB_DEBUG_SM, "Comparing client against saved state: \n"); ob_debug_type(OB_DEBUG_SM, " client id: %s \n", c->sm_client_id); ob_debug_type(OB_DEBUG_SM, " client name: %s \n", c->name); ob_debug_type(OB_DEBUG_SM, " client class: %s \n", c->class); ob_debug_type(OB_DEBUG_SM, " client role: %s \n", c->role); ob_debug_type(OB_DEBUG_SM, " client type: %d \n", c->type); ob_debug_type(OB_DEBUG_SM, " client command: %s \n", c->wm_command ? c->wm_command : "(null)"); ob_debug_type(OB_DEBUG_SM, " state id: %s \n", s->id); ob_debug_type(OB_DEBUG_SM, " state name: %s \n", s->name); ob_debug_type(OB_DEBUG_SM, " state class: %s \n", s->class); ob_debug_type(OB_DEBUG_SM, " state role: %s \n", s->role); ob_debug_type(OB_DEBUG_SM, " state type: %d \n", s->type); ob_debug_type(OB_DEBUG_SM, " state command: %s \n", s->command ? s->command : "(null)"); if ((c->sm_client_id && s->id && !strcmp(c->sm_client_id, s->id)) || (c->wm_command && s->command && !strcmp(c->wm_command, s->command))) { return (!strcmp(s->name, c->name) && !strcmp(s->class, c->class) && !strcmp(s->role, c->role) && /* the check for type is to catch broken clients, like firefox, which open a different window on startup with the same info as the one we saved. only do this check for old windows that dont use xsmp, others should know better ! */ (!s->command || c->type == s->type)); } return FALSE; } 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 void session_load_file(const gchar *path) { xmlDocPtr doc; xmlNodePtr node, n, m; GList *it, *inext; if (!parse_load(path, "openbox_session", &doc, &node)) return; if ((n = parse_find_node("desktop", node->children))) session_desktop = parse_int(doc, n); if ((n = parse_find_node("numdesktops", node->children))) session_num_desktops = parse_int(doc, n); if ((n = parse_find_node("desktoplayout", node->children))) { /* make sure they are all there for it to be valid */ if ((m = parse_find_node("orientation", n->children))) session_desktop_layout.orientation = parse_int(doc, m); if (m && (m = parse_find_node("startcorner", n->children))) session_desktop_layout.start_corner = parse_int(doc, m); if (m && (m = parse_find_node("columns", n->children))) session_desktop_layout.columns = parse_int(doc, m); if (m && (m = parse_find_node("rows", n->children))) session_desktop_layout.rows = parse_int(doc, m); session_desktop_layout_present = m != NULL; } if ((n = parse_find_node("desktopnames", node->children))) { for (m = parse_find_node("name", n->children); m; m = parse_find_node("name", m->next)) { session_desktop_names = g_slist_append(session_desktop_names, parse_string(doc, m)); } } for (node = parse_find_node("window", node->children); node != NULL; node = parse_find_node("window", node->next)) { ObSessionState *state; state = g_new0(ObSessionState, 1); if (!parse_attr_string("id", node, &state->id)) if (!parse_attr_string("command", node, &state->command)) 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("windowtype", node->children))) goto session_load_bail; state->type = 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; state->undecorated = parse_find_node("undecorated", node->children) != NULL; state->focused = parse_find_node("focused", node->children) != NULL; /* save this. they are in the file in stacking order, so preserve that order here */ session_saved_state = g_list_append(session_saved_state, state); continue; session_load_bail: session_state_free(state); } /* Remove any duplicates. This means that if two windows (or more) are saved with the same session state, we won't restore a session for any of them because we don't know what window to put what on. AHEM FIREFOX. This is going to be an O(2^n) kind of operation unfortunately. */ for (it = session_saved_state; it; it = inext) { GList *jt, *jnext; gboolean founddup = FALSE; ObSessionState *s1 = it->data; inext = g_list_next(it); for (jt = g_list_next(it); jt; jt = jnext) { ObSessionState *s2 = jt->data; gboolean match; jnext = g_list_next(jt); if (s1->id && s2->id) match = strcmp(s1->id, s2->id) == 0; else if (s1->command && s2->command) match = strcmp(s1->command, s2->command) == 0; else match = FALSE; if (match && !strcmp(s1->name, s2->name) && !strcmp(s1->class, s2->class) && !strcmp(s1->role, s2->role)) { session_state_free(s2); session_saved_state = g_list_delete_link(session_saved_state, jt); founddup = TRUE; } } if (founddup) { session_state_free(s1); session_saved_state = g_list_delete_link(session_saved_state, it); } } xmlFreeDoc(doc); } #endif |