/* session.c - session state handling and R6 style session management
*
* Copyright (c) 1998-2003 Dan Pascu
* Copyright (c) 1998-2003 Alfredo Kojima
*
* Window Maker window manager
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
/*
*
* If defined(XSMP_ENABLED) and session manager is running then
* do normal stuff
* else
* do pre-R6 session management stuff (save window state and relaunch)
*
* When doing a checkpoint:
*
* = Without XSMP
* Open "Stop"/status Dialog
* Send SAVE_YOURSELF to clients and wait for reply
* Save restart info
* Save state of clients
*
* = With XSMP
* Send checkpoint request to sm
*
* When exiting:
* -------------
*
* = Without XSMP
*
* Open "Exit Now"/status Dialog
* Send SAVE_YOURSELF to clients and wait for reply
* Save restart info
* Save state of clients
* Send DELETE to all clients
* When no more clients are left or user hit "Exit Now", exit
*
* = With XSMP
*
* Send Shutdown request to session manager
* if SaveYourself message received, save state of clients
* if the Die message is received, exit.
*/
#include "wconfig.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#ifdef XSMP_ENABLED
#include <X11/SM/SMlib.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include "WindowMaker.h"
#include "screen.h"
#include "window.h"
#include "client.h"
#include "session.h"
#include "wcore.h"
#include "framewin.h"
#include "workspace.h"
#include "funcs.h"
#include "properties.h"
#include "application.h"
#include "appicon.h"
#include "dock.h"
#include <WINGs/WUtil.h>
/** Global **/
extern Atom _XA_WM_SAVE_YOURSELF;
extern Time LastTimestamp;
#ifdef XSMP_ENABLED
extern int wScreenCount;
/* requested for SaveYourselfPhase2 */
static Bool sWaitingPhase2 = False;
static SmcConn sSMCConn = NULL;
static WMHandlerID sSMInputHandler = NULL;
/* our SM client ID */
static char *sClientID = NULL;
#endif
static WMPropList *sApplications = NULL;
static WMPropList *sCommand;
static WMPropList *sName;
static WMPropList *sHost;
static WMPropList *sWorkspace;
static WMPropList *sShaded;
static WMPropList *sMiniaturized;
static WMPropList *sHidden;
static WMPropList *sGeometry;
static WMPropList *sShortcutMask;
static WMPropList *sDock;
static WMPropList *sYes, *sNo;
static void
make_keys()
{
if (sApplications!=NULL)
return;
sApplications = WMCreatePLString("Applications");
sCommand = WMCreatePLString("Command");
sName = WMCreatePLString("Name");
sHost = WMCreatePLString("Host");
sWorkspace = WMCreatePLString("Workspace");
sShaded = WMCreatePLString("Shaded");
sMiniaturized = WMCreatePLString("Miniaturized");
sHidden = WMCreatePLString("Hidden");
sGeometry = WMCreatePLString("Geometry");
sDock = WMCreatePLString("Dock");
sShortcutMask = WMCreatePLString("ShortcutMask");
sYes = WMCreatePLString("Yes");
sNo = WMCreatePLString("No");
}
static int
getBool(WMPropList *value)
{
char *val;
if (!WMIsPLString(value)) {
return 0;
}
if (!(val = WMGetFromPLString(value))) {
return 0;
}
if ((val[1]=='\0' && (val[0]=='y' || val[0]=='Y'))
|| strcasecmp(val, "YES")==0) {
return 1;
} else if ((val[1]=='\0' && (val[0]=='n' || val[0]=='N'))
|| strcasecmp(val, "NO")==0) {
return 0;
} else {
int i;
if (sscanf(val, "%i", &i)==1) {
return (i!=0);
} else {
wwarning(_("can't convert \"%s\" to boolean"), val);
return 0;
}
}
}
static unsigned
getInt(WMPropList *value)
{
char *val;
unsigned n;
if (!WMIsPLString(value))
return 0;
val = WMGetFromPLString(value);
if (!val)
return 0;
if (sscanf(val, "%u", &n) != 1)
return 0;
return n;
}
static WMPropList*
makeWindowState(WWindow *wwin, WApplication *wapp)
{
WScreen *scr = wwin->screen_ptr;
Window win;
int i;
unsigned mask;
char *class, *instance, *command=NULL, buffer[512];
WMPropList *win_state, *cmd, *name, *workspace;
WMPropList *shaded, *miniaturized, *hidden, *geometry;
WMPropList *dock, *shortcut;
if (wwin->orig_main_window!=None && wwin->orig_main_window!=wwin->client_win)
win = wwin->orig_main_window;
else
win = wwin->client_win;
command = GetCommandForWindow(win);
if (!command)
return NULL;
if (PropGetWMClass(win, &class, &instance)) {
if (class && instance)
snprintf(buffer, sizeof(buffer), "%s.%s", instance, class);
else if (instance)
snprintf(buffer, sizeof(buffer), "%s", instance);
else if (class)
snprintf(buffer, sizeof(buffer), ".%s", class);
else
snprintf(buffer, sizeof(buffer), ".");
name = WMCreatePLString(buffer);
cmd = WMCreatePLString(command);
/*sprintf(buffer, "%d", wwin->frame->workspace+1);
workspace = WMCreatePLString(buffer);*/
workspace = WMCreatePLString(scr->workspaces[wwin->frame->workspace]->name);
shaded = wwin->flags.shaded ? sYes : sNo;
miniaturized = wwin->flags.miniaturized ? sYes : sNo;
hidden = wwin->flags.hidden ? sYes : sNo;
snprintf(buffer, sizeof(buffer), "%ix%i+%i+%i",
wwin->client.width, wwin->client.height,
wwin->frame_x, wwin->frame_y);
geometry = WMCreatePLString(buffer);
for (mask = 0, i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
if (scr->shortcutWindows[i] != NULL &&
WMGetFirstInArray(scr->shortcutWindows[i], wwin) != WANotFound) {
mask |= 1<<i;
}
}
snprintf(buffer, sizeof(buffer), "%u", mask);
shortcut = WMCreatePLString(buffer);
win_state = WMCreatePLDictionary(sName, name,
sCommand, cmd,
sWorkspace, workspace,
sShaded, shaded,
sMiniaturized, miniaturized,
sHidden, hidden,
sShortcutMask, shortcut,
sGeometry, geometry,
NULL);
WMReleasePropList(name);
WMReleasePropList(cmd);
WMReleasePropList(workspace);
WMReleasePropList(geometry);
WMReleasePropList(shortcut);
if (wapp && wapp->app_icon && wapp->app_icon->dock) {
int i;
char *name;
if (wapp->app_icon->dock == scr->dock) {
name="Dock";
} else {
for(i=0; i<scr->workspace_count; i++)
if(scr->workspaces[i]->clip == wapp->app_icon->dock)
break;
assert(i < scr->workspace_count);
/*n = i+1;*/
name = scr->workspaces[i]->name;
}
dock = WMCreatePLString(name);
WMPutInPLDictionary(win_state, sDock, dock);
WMReleasePropList(dock);
}
} else {
win_state = NULL;
}
if (instance) XFree(instance);
if (class) XFree(class);
if (command) wfree(command);
return win_state;
}
void
wSessionSaveState(WScreen *scr)
{
WWindow *wwin = scr->focused_window;
WMPropList *win_info, *wks;
WMPropList *list=NULL;
WMArray *wapp_list=NULL;
make_keys();
if (!scr->session_state) {
scr->session_state = WMCreatePLDictionary(NULL, NULL);
if (!scr->session_state)
return;
}
list = WMCreatePLArray(NULL);
wapp_list = WMCreateArray(16);
while (wwin) {
WApplication *wapp=wApplicationOf(wwin->main_window);
Window appId = wwin->orig_main_window;
if ((wwin->transient_for==None
|| wwin->transient_for==wwin->screen_ptr->root_win)
&& WMGetFirstInArray(wapp_list, (void*)appId)==WANotFound
&& !WFLAGP(wwin, dont_save_session)) {
/* A entry for this application was not yet saved. Save one. */
if ((win_info = makeWindowState(wwin, wapp))!=NULL) {
WMAddToPLArray(list, win_info);
WMReleasePropList(win_info);
/* If we were succesful in saving the info for this window
* add the application the window belongs to, to the
* application list, so no multiple entries for the same
* application are saved.
*/
WMAddToArray(wapp_list, (void*)appId);
}
}
wwin = wwin->prev;
}
WMRemoveFromPLDictionary(scr->session_state, sApplications);
WMPutInPLDictionary(scr->session_state, sApplications, list);
WMReleasePropList(list);
wks = WMCreatePLString(scr->workspaces[scr->current_workspace]->name);
WMPutInPLDictionary(scr->session_state, sWorkspace, wks);
WMReleasePropList(wks);
WMFreeArray(wapp_list);
}
void
wSessionClearState(WScreen *scr)
{
make_keys();
if (!scr->session_state)
return;
WMRemoveFromPLDictionary(scr->session_state, sApplications);
WMRemoveFromPLDictionary(scr->session_state, sWorkspace);
}
static pid_t
execCommand(WScreen *scr, char *command, char *host)
{
pid_t pid;
char **argv;
int argc;
wtokensplit(command, &argv, &argc);
if (argv==NULL) {
return 0;
}
if ((pid=fork())==0) {
char **args;
int i;
SetupEnvironment(scr);
args = malloc(sizeof(char*)*(argc+1));
if (!args)
exit(111);
for (i=0; i<argc; i++) {
args[i] = argv[i];
}
args[argc] = NULL;
execvp(argv[0], args);
exit(111);
}
while (argc > 0)
wfree(argv[--argc]);
wfree(argv);
return pid;
}
static WSavedState*
getWindowState(WScreen *scr, WMPropList *win_state)
{
WSavedState *state = wmalloc(sizeof(WSavedState));
WMPropList *value;
char *tmp;
unsigned mask;
int i;
memset(state, 0, sizeof(WSavedState));
state->workspace = -1;
value = WMGetFromPLDictionary(win_state, sWorkspace);
if (value && WMIsPLString(value)) {
tmp = WMGetFromPLString(value);
if (sscanf(tmp, "%i", &state->workspace)!=1) {
state->workspace = -1;
for (i=0; i < scr->workspace_count; i++) {
if (strcmp(scr->workspaces[i]->name, tmp)==0) {
state->workspace = i;
break;
}
}
} else {
state->workspace--;
}
}
if ((value = WMGetFromPLDictionary(win_state, sShaded))!=NULL)
state->shaded = getBool(value);
if ((value = WMGetFromPLDictionary(win_state, sMiniaturized))!=NULL)
state->miniaturized = getBool(value);
if ((value = WMGetFromPLDictionary(win_state, sHidden))!=NULL)
state->hidden = getBool(value);
if ((value = WMGetFromPLDictionary(win_state, sShortcutMask))!=NULL) {
mask = getInt(value);
state->window_shortcuts = mask;
}
value = WMGetFromPLDictionary(win_state, sGeometry);
if (value && WMIsPLString(value)) {
if (!(sscanf(WMGetFromPLString(value), "%ix%i+%i+%i",
&state->w, &state->h, &state->x, &state->y)==4 &&
(state->w>0 && state->h>0))) {
state->w = 0;
state->h = 0;
}
}
return state;
}
#define SAME(x, y) (((x) && (y) && !strcmp((x), (y))) || (!(x) && !(y)))
void
wSessionRestoreState(WScreen *scr)
{
WSavedState *state;
char *instance, *class, *command, *host;
WMPropList *win_info, *apps, *cmd, *value;
pid_t pid;
int i, count;
WDock *dock;
WAppIcon *btn=NULL;
int j, n, found;
char *tmp;
make_keys();
if (!scr->session_state)
return;
WMPLSetCaseSensitive(True);
apps = WMGetFromPLDictionary(scr->session_state, sApplications);
if (!apps)
return;
count = WMGetPropListItemCount(apps);
if (count==0)
return;
for (i=0; i<count; i++) {
win_info = WMGetFromPLArray(apps, i);
cmd = WMGetFromPLDictionary(win_info, sCommand);
if (!cmd || !WMIsPLString(cmd) || !(command = WMGetFromPLString(cmd))) {
continue;
}
value = WMGetFromPLDictionary(win_info, sName);
if (!value)
continue;
ParseWindowName(value, &instance, &class, "session");
if (!instance && !class)
continue;
value = WMGetFromPLDictionary(win_info, sHost);
if (value && WMIsPLString(value))
host = WMGetFromPLString(value);
else
host = NULL;
state = getWindowState(scr, win_info);
dock = NULL;
value = WMGetFromPLDictionary(win_info, sDock);
if (value && WMIsPLString(value) && (tmp = WMGetFromPLString(value))!=NULL) {
if (sscanf(tmp, "%i", &n)!=1) {
if (!strcasecmp(tmp, "DOCK")) {
dock = scr->dock;
} else {
for (j=0; j < scr->workspace_count; j++) {
if (strcmp(scr->workspaces[j]->name, tmp)==0) {
dock = scr->workspaces[j]->clip;
break;
}
}
}
} else {
if (n == 0) {
dock = scr->dock;
} else if (n>0 && n<=scr->workspace_count) {
dock = scr->workspaces[n-1]->clip;
}
}
}
found = 0;
if (dock!=NULL) {
for (j=0; j<dock->max_icons; j++) {
btn = dock->icon_array[j];
if (btn && SAME(instance, btn->wm_instance) &&
SAME(class, btn->wm_class) &&
SAME(command, btn->command) &&
!btn->launching) {
found = 1;
break;
}
}
}
if (found) {
wDockLaunchWithState(dock, btn, state);
} else if ((pid = execCommand(scr, command, host)) > 0) {
wWindowAddSavedState(instance, class, command, pid, state);
} else {
wfree(state);
}
if (instance) wfree(instance);
if (class) wfree(class);
}
/* clean up */
WMPLSetCaseSensitive(False);
}
void
wSessionRestoreLastWorkspace(WScreen *scr)
{
WMPropList *wks;
int w, i;
char *tmp;
make_keys();
if (!scr->session_state)
return;
WMPLSetCaseSensitive(True);
wks = WMGetFromPLDictionary(scr->session_state, sWorkspace);
if (!wks || !WMIsPLString(wks))
return;
tmp = WMGetFromPLString(wks);
/* clean up */
WMPLSetCaseSensitive(False);
if (sscanf(tmp, "%i", &w)!=1) {
w = -1;
for (i=0; i < scr->workspace_count; i++) {
if (strcmp(scr->workspaces[i]->name, tmp)==0) {
w = i;
break;
}
}
} else {
w--;
}
if (w!=scr->current_workspace && w<scr->workspace_count) {
wWorkspaceChange(scr, w);
}
}
static void
clearWaitingAckState(WScreen *scr)
{
WWindow *wwin;
WApplication *wapp;
for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
wwin->flags.waiting_save_ack = 0;
if (wwin->main_window != None) {
wapp = wApplicationOf(wwin->main_window);
if (wapp)
wapp->main_window_desc->flags.waiting_save_ack = 0;
}
}
}
void
wSessionSaveClients(WScreen *scr)
{
}
/*
* With XSMP, this job is done by smproxy
*/
void
wSessionSendSaveYourself(WScreen *scr)
{
WWindow *wwin;
int count;
/* freeze client interaction with clients */
XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync,
CurrentTime);
XGrabPointer(dpy, scr->root_win, False, ButtonPressMask|ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, scr->root_win, None,
CurrentTime);
clearWaitingAckState(scr);
count = 0;
/* first send SAVE_YOURSELF for everybody */
for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
WWindow *mainWin;
mainWin = wWindowFor(wwin->main_window);
if (mainWin) {
/* if the client is a multi-window client, only send message
* to the main window */
wwin = mainWin;
}
/* make sure the SAVE_YOURSELF flag is up-to-date */
PropGetProtocols(wwin->client_win, &wwin->protocols);
if (wwin->protocols.SAVE_YOURSELF) {
if (!wwin->flags.waiting_save_ack) {
wClientSendProtocol(wwin, _XA_WM_SAVE_YOURSELF, LastTimestamp);
wwin->flags.waiting_save_ack = 1;
count++;
}
} else {
wwin->flags.waiting_save_ack = 0;
}
}
/* then wait for acknowledge */
while (count > 0) {
}
XUngrabPointer(dpy, CurrentTime);
XUngrabKeyboard(dpy, CurrentTime);
XFlush(dpy);
}
#ifdef XSMP_ENABLED
/*
* With full session management support, the part of WMState
* that store client window state will become obsolete (maybe we can reuse
* the old code too),
* but we still need to store state info like the dock and workspaces.
* It is better to keep dock/wspace info in WMState because the user
* might want to keep the dock configuration while not wanting to
* resume a previously saved session.
* So, wmaker specific state info can be saved in
* ~/GNUstep/Library/WindowMaker/statename.state
* Its better to not put it in the defaults directory because:
* - its not a defaults file (having domain names like wmaker0089504baa
* in the defaults directory wouldn't be very neat)
* - this state file is not meant to be edited by users
*
* The old session code will become obsolete. When wmaker is
* compiled with R6 sm support compiled in, it'll be better to
* use a totally rewritten state saving code, but we can keep
* the current code for when XSMP_ENABLED is not compiled in.
*
* This will be confusing to old users (well get lots of "SAVE_SESSION broke!"
* messages), but it'll be better.
*
* -readme
*/
static char*
getWindowRole(Window window)
{
XTextProperty prop;
static Atom atom = 0;
if (!atom)
atom = XInternAtom(dpy, "WM_WINDOW_ROLE", False);
if (XGetTextProperty(dpy, window, &prop, atom)) {
if (prop.encoding == XA_STRING && prop.format == 8 && prop.nitems > 0)
return prop.value;
}
return NULL;
}
/*
*
* Saved Info:
*
* WM_WINDOW_ROLE
*
* WM_CLASS.instance
* WM_CLASS.class
* WM_NAME
* WM_COMMAND
*
* geometry
* state = (miniaturized, shaded, etc)
* attribute
* workspace #
* app state = (which dock, hidden)
* window shortcut #
*/
static WMPropList*
makeAppState(WWindow *wwin)
{
WApplication *wapp;
WMPropList *state;
WScreen *scr = wwin->screen_ptr;
state = WMCreatePLArray(NULL, NULL);
wapp = wApplicationOf(wwin->main_window);
if (wapp) {
if (wapp->app_icon && wapp->app_icon->dock) {
if (wapp->app_icon->dock == scr->dock) {
WMAddToPLArray(state, WMCreatePLString("Dock"));
} else {
int i;
for(i=0; i<scr->workspace_count; i++)
if(scr->workspaces[i]->clip == wapp->app_icon->dock)
break;
assert(i < scr->workspace_count);
WMAddToPLArray(state,
WMCreatePLString(scr->workspaces[i]->name));
}
}
WMAddToPLArray(state, WMCreatePLString(wapp->hidden ? "1" : "0"));
}
return state;
}
Bool
wSessionGetStateFor(WWindow *wwin, WSessionData *state)
{
char *str;
WMPropList *slist;
WMPropList *elem;
WMPropList *value;
int index = 0;
index = 3;
/* geometry */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
sscanf(str, "%i %i %i %i %i %i", &state->x, &state->y,
&state->width, &state->height,
&state->user_changed_width, &state->user_changed_height);
/* state */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
sscanf(str, "%i %i %i", &state->miniaturized, &state->shaded,
&state->maximized);
/* attributes */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
getAttributeState(str, &state->mflags, &state->flags);
/* workspace */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
sscanf(str, "%i", &state->workspace);
/* app state (repeated for all windows of the app) */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
/* ???? */
/* shortcuts */
value = WMGetFromPLArray(slist, index++);
str = WMGetFromPLString(value);
sscanf(str, "%i", &state->shortcuts);
}
static WMPropList*
makeAttributeState(WWindow *wwin)
{
unsigned int data1, data2;
char buffer[256];
#define W_FLAG(wwin, FLAG) ((wwin)->defined_user_flags.FLAG \
? (wwin)->user_flags.FLAG : -1)
snprintf(buffer, sizeof(buffer),
"%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
W_FLAG(no_titlebar),
W_FLAG(no_resizable),
W_FLAG(no_closable),
W_FLAG(no_miniaturizable),
W_FLAG(no_resizebar),
W_FLAG(no_close_button),
W_FLAG(no_miniaturize_button),
/*
W_FLAG(broken_close),
W_FLAG(kill_close),
*/
W_FLAG(no_shadeable),
W_FLAG(omnipresent),
W_FLAG(skip_window_list),
W_FLAG(floating),
W_FLAG(sunken),
W_FLAG(no_bind_keys),
W_FLAG(no_bind_mouse),
W_FLAG(no_hide_others),
W_FLAG(no_appicon),
W_FLAG(dont_move_off),
W_FLAG(no_focusable),
W_FLAG(always_user_icon),
W_FLAG(start_miniaturized),
W_FLAG(start_hidden),
W_FLAG(start_maximized),
W_FLAG(dont_save_session),
W_FLAG(emulate_appicon));
return WMCreatePLString(buffer);
}
static void
appendStringInArray(WMPropList *array, char *str)
{
WMPropList *val;
val = WMCreatePLString(str);
WMAddToPLArray(array, val);
WMReleasePropList(val);
}
static WMPropList*
makeClientState(WWindow *wwin)
{
WMPropList *state;
WMPropList *tmp;
char *str;
char buffer[512];
int i;
unsigned shortcuts;
state = WMCreatePLArray(NULL, NULL);
/* WM_WINDOW_ROLE */
str = getWindowRole(wwin->client_win);
if (!str)
appendStringInArray(state, "");
else {
appendStringInArray(state, str);
XFree(str);
}
/* WM_CLASS.instance */
appendStringInArray(state, wwin->wm_instance);
/* WM_CLASS.class */
appendStringInArray(state, wwin->wm_class);
/* WM_NAME */
if (wwin->flags.wm_name_changed)
appendStringInArray(state, "");
else
appendStringInArray(state, wwin->frame->name);
/* geometry */
snprintf(buffer, sizeof(buffer), "%i %i %i %i %i %i", wwin->frame_x, wwin->frame_y,
wwin->client.width, wwin->client.height,
wwin->flags.user_changed_width, wwin->flags.user_changed_height);
appendStringInArray(state, buffer);
/* state */
snprintf(buffer, sizeof(buffer), "%i %i %i", wwin->flags.miniaturized,
wwin->flags.shaded, wwin->flags.maximized);
appendStringInArray(state, buffer);
/* attributes */
tmp = makeAttributeState(wwin);
WMAddToPLArray(state, tmp);
WMReleasePropList(tmp);
/* workspace */
snprintf(buffer, sizeof(buffer), "%i", wwin->frame->workspace);
appendStringInArray(state, buffer);
/* app state (repeated for all windows of the app) */
tmp = makeAppState(wwin);
WMAddToPLArray(state, tmp);
WMReleasePropList(tmp);
/* shortcuts */
shortcuts = 0;
for (i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
if (scr->shortcutWindow[i] == wwin) {
shortcuts |= 1 << i;
}
}
snprintf(buffer, sizeof(buffer), "%ui", shortcuts);
appendStringInArray(tmp, buffer);
return state;
}
static void
smSaveYourselfPhase2Proc(SmcConn smc_conn, SmPointer client_data)
{
SmProp props[4];
SmPropValue prop1val, prop2val, prop3val, prop4val;
char **argv = (char**)client_data;
int argc;
int i, j;
Bool ok = False;
char *statefile = NULL;
char *prefix;
Bool gsPrefix = False;
char *discardCmd = NULL;
time_t t;
WMPropList *state, *plState;
int len;
#ifdef DEBUG1
puts("received SaveYourselfPhase2 SM message");
#endif
/* save session state */
/* the file that will contain the state */
prefix = getenv("SM_SAVE_DIR");
if (!prefix) {
prefix = wusergnusteppath();
if (prefix)
gsPrefix = True;
}
if (!prefix) {
prefix = getenv("HOME");
}
if (!prefix)
prefix = ".";
len = strlen(prefix)+64;
statefile = malloc(len);
if (!statefile) {
wwarning(_("out of memory while saving session state"));
goto fail;
}
t = time();
i = 0;
do {
if (gsPrefix)
snprintf(statefile, len, "%s/Library/WindowMaker/wmaker.%l%i.state",
prefix, t, i);
else
snprintf(statefile, len, "%s/wmaker.%l%i.state", prefix, t, i);
i++;
} while (access(F_OK, statefile)!=-1);
/* save the states of all windows we're managing */
state = WMCreatePLArray(NULL, NULL);
/*
* Format:
*
* state_file ::= dictionary with version_info ; state
* version_info ::= 'version' = '1';
* state ::= 'state' = array of screen_info
* screen_info ::= array of (screen number, window_info, window_info, ...)
* window_info ::=
*/
for (i=0; i<wScreenCount; i++) {
WScreen *scr;
WWindow *wwin;
char buf[32];
WMPropList *pscreen;
scr = wScreenWithNumber(i);
snprintf(buf, sizeof(buf), "%i", scr->screen);
pscreen = WMCreatePLArray(WMCreatePLString(buf), NULL);
wwin = scr->focused_window;
while (wwin) {
WMPropList *pwindow;
pwindow = makeClientState(wwin);
WMAddToPLArray(pscreen, pwindow);
wwin = wwin->prev;
}
WMAddToPLArray(state, pscreen);
}
plState = WMCreatePLDictionary(WMCreatePLString("Version"),
WMCreatePLString("1.0"),
WMCreatePLString("Screens"),
state, NULL);
WMWritePropListToFile(plState, statefile, False);
WMReleasePropList(plState);
/* set the remaining properties that we didn't set at
* startup time */
for (argc=0, i=0; argv[i]!=NULL; i++) {
if (strcmp(argv[i], "-clientid")==0
|| strcmp(argv[i], "-restore")==0) {
i++;
} else {
argc++;
}
}
prop[0].name = SmRestartCommand;
prop[0].type = SmLISTofARRAY8;
prop[0].vals = malloc(sizeof(SmPropValue)*(argc+4));
prop[0].num_vals = argc+4;
prop[1].name = SmCloneCommand;
prop[1].type = SmLISTofARRAY8;
prop[1].vals = malloc(sizeof(SmPropValue)*(argc));
prop[1].num_vals = argc;
if (!prop[0].vals || !prop[1].vals) {
wwarning(_("end of memory while saving session state"));
goto fail;
}
for (j=0, i=0; i<argc+4; i++) {
if (strcmp(argv[i], "-clientid")==0
|| strcmp(argv[i], "-restore")==0) {
i++;
} else {
prop[0].vals[j].value = argv[i];
prop[0].vals[j].length = strlen(argv[i]);
prop[1].vals[j].value = argv[i];
prop[1].vals[j].length = strlen(argv[i]);
j++;
}
}
prop[0].vals[j].value = "-clientid";
prop[0].vals[j].length = 9;
j++;
prop[0].vals[j].value = sClientID;
prop[0].vals[j].length = strlen(sClientID);
j++;
prop[0].vals[j].value = "-restore";
prop[0].vals[j].length = 11;
j++;
prop[0].vals[j].value = statefile;
prop[0].vals[j].length = strlen(statefile);
{
int len = strlen(statefile)+8;
discardCmd = malloc(len);
if (!discardCmd)
goto fail;
snprintf(discardCmd, len, "rm %s", statefile);
}
prop[2].name = SmDiscardCommand;
prop[2].type = SmARRAY8;
prop[2].vals[0] = discardCmd;
prop[2].num_vals = 1;
SmcSetProperties(sSMCConn, 3, prop);
ok = True;
fail:
SmcSaveYourselfDone(smc_conn, ok);
if (prop[0].vals)
wfree(prop[0].vals);
if (prop[1].vals)
wfree(prop[1].vals);
if (discardCmd)
wfree(discardCmd);
if (!ok) {
remove(statefile);
}
if (statefile)
wfree(statefile);
}
static void
smSaveYourselfProc(SmcConn smc_conn, SmPointer client_data, int save_type,
Bool shutdown, int interact_style, Bool fast)
{
#ifdef DEBUG1
puts("received SaveYourself SM message");
#endif
if (!SmcRequestSaveYourselfPhase2(smc_conn, smSaveYourselfPhase2Proc,
client_data)) {
SmcSaveYourselfDone(smc_conn, False);
sWaitingPhase2 = False;
} else {
#ifdef DEBUG1
puts("successfull request of SYS phase 2");
#endif
sWaitingPhase2 = True;
}
}
static void
smDieProc(SmcConn smc_conn, SmPointer client_data)
{
#ifdef DEBUG1
puts("received Die SM message");
#endif
wSessionDisconnectManager();
Shutdown(WSExitMode, True);
}
static void
smSaveCompleteProc(SmcConn smc_conn)
{
/* it means that we can resume doing things that can change our state */
#ifdef DEBUG1
puts("received SaveComplete SM message");
#endif
}
static void
smShutdownCancelledProc(SmcConn smc_conn, SmPointer client_data)
{
if (sWaitingPhase2) {
sWaitingPhase2 = False;
SmcSaveYourselfDone(smc_conn, False);
}
}
static void
iceMessageProc(int fd, int mask, void *clientData)
{
IceConn iceConn = (IceConn)clientData;
IceProcessMessages(iceConn, NULL, NULL);
}
static void
iceIOErrorHandler(IceConnection ice_conn)
{
/* This is not fatal but can mean the session manager exited.
* If the session manager exited normally we would get a
* Die message, so this probably means an abnormal exit.
* If the sm was the last client of session, then we'll die
* anyway, otherwise we can continue doing our stuff.
*/
wwarning(_("connection to the session manager was lost"));
wSessionDisconnectManager();
}
void
wSessionConnectManager(char **argv, int argc)
{
IceConn iceConn;
char *previous_id = NULL;
char buffer[256];
SmcCallbacks callbacks;
unsigned long mask;
char uid[32];
char pid[32];
SmProp props[4];
SmPropValue prop1val, prop2val, prop3val, prop4val;
char restartStyle;
int i;
mask = SmcSaveYourselfProcMask|SmcDieProcMask|SmcSaveCompleteProcMask
|SmcShutdownCancelledProcMask;
callbacks.save_yourself.callback = smSaveYourselfProc;
callbacks.save_yourself.client_data = argv;
callbacks.die.callback = smDieProc;
callbacks.die.client_data = NULL;
callbacks.save_complete.callback = smSaveCompleteProc;
callbacks.save_complete.client_data = NULL;
callbacks.shutdown_cancelled.callback = smShutdownCancelledProc;
callbacks.shutdown_cancelled.client_data = NULL;
for (i=0; i<argc; i++) {
if (strcmp(argv[i], "-clientid")==0) {
previous_id = argv[i+1];
break;
}
}
/* connect to the session manager */
sSMCConn = SmcOpenConnection(NULL, NULL, SmProtoMajor, SmProtoMinor,
mask, &callbacks, previous_id,
&sClientID, 255, buffer);
if (!sSMCConn) {
return;
}
#ifdef DEBUG1
puts("connected to the session manager");
#endif
/* IceSetIOErrorHandler(iceIOErrorHandler);*/
/* check for session manager clients */
iceConn = SmcGetIceConnection(smcConn);
if (fcntl(IceConnectionNumber(iceConn), F_SETFD, FD_CLOEXEC) < 0) {
wsyserror("error setting close-on-exec flag for ICE connection");
}
sSMInputHandler = WMAddInputHandler(IceConnectionNumber(iceConn),
WIReadMask, iceMessageProc, iceConn);
/* setup information about ourselves */
/* program name */
prop1val.value = argv[0];
prop1val.length = strlen(argv[0]);
prop[0].name = SmProgram;
prop[0].type = SmARRAY8;
prop[0].num_vals = 1;
prop[0].vals = &prop1val;
/* The XSMP doc from X11R6.1 says it contains the user name,
* but every client implementation I saw places the uid # */
snprintf(uid, sizeof(uid), "%i", getuid());
prop2val.value = uid;
prop2val.length = strlen(uid);
prop[1].name = SmUserID;
prop[1].type = SmARRAY8;
prop[1].num_vals = 1;
prop[1].vals = &prop2val;
/* Restart style. We should restart only if we were running when
* the previous session finished. */
restartStyle = SmRestartIfRunning;
prop3val.value = &restartStyle;
prop3val.length = 1;
prop[2].name = SmRestartStyleHint;
prop[2].type = SmCARD8;
prop[2].num_vals = 1;
prop[2].vals = &prop3val;
/* Our PID. Not required but might be usefull */
snprintf(pid, sizeof(pid), "%i", getpid());
prop4val.value = pid;
prop4val.length = strlen(pid);
prop[3].name = SmProcessID;
prop[3].type = SmARRAY8;
prop[3].num_vals = 1;
prop[3].vals = &prop4val;
/* we'll set the rest of the hints later */
SmcSetProperties(sSMCConn, 4, props);
}
void
wSessionDisconnectManager(void)
{
if (sSMCConn) {
WMDeleteInputHandler(sSMInputHandler);
sSMInputHandler = NULL;
SmcCloseConnection(sSMCConn, 0, NULL);
sSMCConn = NULL;
}
}
void
wSessionRequestShutdown(void)
{
/* request a shutdown to the session manager */
if (sSMCConn)
SmcRequestSaveYourself(sSMCConn, SmSaveBoth, True, SmInteractStyleAny,
False, True);
}
Bool
wSessionIsManaged(void)
{
return sSMCConn!=NULL;
}
#endif /* !XSMP_ENABLED */
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