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gimp/plug-ins/webbrowser/webbrowser.c
Asbjørn Pettersen 0c0e59390d spawnlp() instead of fork
1999-04-29 18:20:46 +00:00

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* Copyright (C) 1997 Misha Dynin
*
* 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.
*/
/*
Web Browser v0.3 -- opens a URL in Netscape
by Misha Dynin <misha@xcf.berkeley.edu>
For more information, see webbrowser.readme, as well as
http://www.xcf.berkeley.edu/~misha/gimp/
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#ifdef __EMX__
#include <process.h>
#endif
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xmu/WinUtil.h> /* for XmuClientWindow() */
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
/* Browser program name -- start in case it's not already running */
#define BROWSER_PROGNAME "netscape"
/* Open a new window with request? */
#define OPEN_URL_NEW_WINDOW 1
#define OPEN_URL_CURRENT_WINDOW 0
static void query (void);
static void run (char *name,
int nparams,
GParam * param,
int *nreturn_vals,
GParam ** return_vals);
static gint open_url_dialog ();
static void close_callback (GtkWidget * widget, gpointer data);
static void ok_callback (GtkWidget * widget, gpointer data);
static void about_callback (GtkWidget * widget, gpointer data);
static void new_window_callback (GtkWidget * widget, gpointer data);
static void url_callback (GtkWidget * widget, gpointer data);
static gint open_url (char *url, int new_window);
static int mozilla_remote (char *command);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
typedef struct
{
char url[255];
int new_window;
}
u_info;
static u_info url_info = {
"http://www.gimp.org/", /* Default URL */
OPEN_URL_NEW_WINDOW, /* Change to ...CURRENT_WINDOW if
you prefer that as the default */
};
static int run_flag = 0;
MAIN ()
static void
query ()
{
static GParamDef args[] =
{
{PARAM_INT32, "run_mode", "Interactive, non-interactive"},
{PARAM_STRING, "url", "URL of a document to open"},
{PARAM_INT32, "new_window", "Create a new window or use existing one?"},
};
static int nargs = sizeof (args) / sizeof (args[0]);
static GParamDef *return_vals = NULL;
static int nreturn_vals = 0;
gimp_install_procedure ("extension_web_browser",
"open URL in Netscape",
"You need to have Netscape installed",
"Misha Dynin <misha@xcf.berkeley.edu>",
"Misha Dynin, Jamie Zawinski, Spencer Kimball & Peter Mattis",
"1997",
"<Toolbox>/Xtns/Web Browser/Open URL...",
"RGB*, GRAY*, INDEXED*",
PROC_EXTENSION,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (char *name,
int nparams,
GParam * param,
int *nreturn_vals,
GParam ** return_vals)
{
static GParam values[1];
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
run_mode = param[0].data.d_int32;
values[0].type = PARAM_STATUS;
values[0].data.d_status = status;
*nreturn_vals = 1;
*return_vals = values;
if (strcmp (name, "extension_web_browser") == 0)
{
switch (run_mode)
{
case RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data ("extension_web_browser", &url_info);
if (!open_url_dialog ())
return;
break;
case RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 3)
status = STATUS_CALLING_ERROR;
if(status == STATUS_SUCCESS)
{
strncpy (url_info.url, param[1].data.d_string, 255);
url_info.new_window = param[2].data.d_int32;
}
break;
case RUN_WITH_LAST_VALS:
gimp_get_data ("extension_web_browser", &url_info);
break;
default:
break;
}
if (status == STATUS_SUCCESS)
{
if (!open_url (url_info.url, url_info.new_window))
values[0].data.d_status = STATUS_EXECUTION_ERROR;
if (run_mode == RUN_INTERACTIVE)
gimp_set_data ("extension_web_browser", &url_info, sizeof (u_info));
values[0].data.d_status = STATUS_SUCCESS;
}
else
values[0].data.d_status = STATUS_EXECUTION_ERROR;
}
else
g_assert (FALSE);
}
static gint
start_browser (char *prog, char *url)
{
#ifndef __EMX__
pid_t cpid;
if ((cpid = fork()) == 0)
{
execlp (prog, prog, url, NULL);
exit (1);
}
return (cpid > 0);
#else
return (spawnlp(P_NOWAIT, prog, prog, url, NULL) != -1);
#endif
}
static gint
open_url (char *url, int new_window)
{
char buf[512];
while (isspace (*url))
++url;
sprintf (buf, "openURL(%s%s)", url, new_window ? ",new-window" : "");
if (mozilla_remote (buf))
return (TRUE);
return (start_browser (BROWSER_PROGNAME, url));
}
static gint
open_url_dialog ()
{
GtkWidget *dlg;
GtkWidget *button;
GtkWidget *entry;
GtkWidget *table;
GtkWidget *label;
GtkWidget *button1;
GtkWidget *button2;
GSList *group;
gint argc;
gchar **argv;
gchar buffer[256];
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("webbrowser");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
dlg = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dlg), "Open URL");
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
(GtkSignalFunc) close_callback, NULL);
/* action area */
/* Okay buton */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) ok_callback,
dlg);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
/* cancel button */
button = gtk_button_new_with_label ("Cancel");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (dlg));
gtk_widget_show (button);
/* about button */
button = gtk_button_new_with_label ("About...");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->action_area), button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) about_callback,
dlg);
gtk_widget_show (button);
/* table */
table = gtk_table_new (2, 3, FALSE);
gtk_container_border_width (GTK_CONTAINER (table), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), table, TRUE, TRUE, 0);
gtk_widget_show (table);
gtk_table_set_row_spacings (GTK_TABLE (table), 10);
gtk_table_set_col_spacings (GTK_TABLE (table), 10);
/* URL: Label */
label = gtk_label_new ("URL:");
gtk_table_attach (GTK_TABLE (table), label,
0, 1, 0, 1,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0);
gtk_widget_show (label);
/* URL: dialog */
entry = gtk_entry_new ();
gtk_table_attach (GTK_TABLE (table), entry,
1, 3, 0, 1,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0);
gtk_widget_set_usize (entry, 200, 0);
sprintf (buffer, "%s", url_info.url);
gtk_entry_set_text (GTK_ENTRY (entry), buffer);
gtk_signal_connect (GTK_OBJECT (entry), "changed",
(GtkSignalFunc) url_callback, &url_info.url);
gtk_widget_show (entry);
/* Window label */
label = gtk_label_new ("Window:");
gtk_table_attach( GTK_TABLE (table), label ,
0, 1, 1, 2,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0);
gtk_widget_show(label);
/* Window radiobutton */
button1 = gtk_radio_button_new_with_label( NULL, "new");
group = gtk_radio_button_group( GTK_RADIO_BUTTON( button1 ) );
button2 = gtk_radio_button_new_with_label( group, "current" );
if( url_info.new_window == OPEN_URL_NEW_WINDOW ) {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button1),TRUE);
} else {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button2),TRUE);
}
gtk_signal_connect (GTK_OBJECT (button1), "toggled",
(GtkSignalFunc) new_window_callback,
(gpointer) "new" );
gtk_signal_connect (GTK_OBJECT (button2), "toggled",
(GtkSignalFunc) new_window_callback,
(gpointer) "current" );
gtk_table_attach( GTK_TABLE (table), button1,
1, 2, 1, 2,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0 );
gtk_widget_show( button1 );
gtk_table_attach( GTK_TABLE (table), button2,
2, 3, 1, 2,
GTK_EXPAND | GTK_FILL,
GTK_EXPAND | GTK_FILL,
0, 0 );
gtk_widget_show( button2 );
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return run_flag;
}
static void
close_callback (GtkWidget * widget, gpointer data)
{
gtk_main_quit ();
}
static void
ok_callback (GtkWidget * widget, gpointer data)
{
run_flag = 1;
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
about_callback (GtkWidget * widget, gpointer data)
{
open_url ("http://www.xcf.berkeley.edu/~misha/gimp/", 1);
}
static void
new_window_callback (GtkWidget * widget, gpointer data)
{
/* Ignore the toggle-off signal, we are only interested in
what is being set */
if( ! GTK_TOGGLE_BUTTON( widget )->active ) {
return;
}
if(strcmp (data, "new") == 0)
url_info.new_window = OPEN_URL_NEW_WINDOW;
if(strcmp (data, "current") == 0)
url_info.new_window = OPEN_URL_CURRENT_WINDOW;
}
static void
url_callback (GtkWidget * widget, gpointer data)
{
strncpy (url_info.url, gtk_entry_get_text (GTK_ENTRY (widget)), 255);
}
/* -*- Mode:C; tab-width: 8 -*-
* remote.c --- remote control of Netscape Navigator for Unix.
* version 1.1.3, for Netscape Navigator 1.1 and newer.
*
* Copyright <20> 1996 Netscape Communications Corporation, all rights reserved.
* Created: Jamie Zawinski <jwz@netscape.com>, 24-Dec-94.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* To compile:
*
* cc -o netscape-remote remote.c -DSTANDALONE -lXmu -lX11
*
* To use:
*
* netscape-remote -help
*
* Documentation for the protocol which this code implements may be found at:
*
* http://home.netscape.com/newsref/std/x-remote.html
*
* Bugs and commentary to x_cbug@netscape.com.
*/
/* vroot.h is a header file which lets a client get along with `virtual root'
window managers like swm, tvtwm, olvwm, etc. If you don't have this header
file, you can find it at "http://home.netscape.com/newsref/std/vroot.h".
If you don't care about supporting virtual root window managers, you can
comment this line out.
*/
/* #include "vroot.h" */
/* Begin vroot.h */
/*****************************************************************************/
/** Copyright 1991 by Andreas Stolcke **/
/** Copyright 1990 by Solbourne Computer Inc. **/
/** Longmont, Colorado **/
/** **/
/** All Rights Reserved **/
/** **/
/** Permission to use, copy, modify, and distribute this software and **/
/** its documentation for any purpose and without fee is hereby **/
/** granted, provided that the above copyright notice appear in all **/
/** copies and that both that copyright notice and this permis- **/
/** sion notice appear in supporting documentation, and that the **/
/** name of Solbourne not be used in advertising **/
/** in publicity pertaining to distribution of the software without **/
/** specific, written prior permission. **/
/** **/
/** ANDREAS STOLCKE AND SOLBOURNE COMPUTER INC. DISCLAIMS ALL WARRANTIES **/
/** WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF **/
/** MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL ANDREAS STOLCKE **/
/** OR SOLBOURNE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL **/
/** DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA **/
/** OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER **/
/** TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE **/
/** OR PERFORMANCE OF THIS SOFTWARE. **/
/*****************************************************************************/
/*
* vroot.h -- Virtual Root Window handling header file
*
* This header file redefines the X11 macros RootWindow and DefaultRootWindow,
* making them look for a virtual root window as provided by certain `virtual'
* window managers like swm and tvtwm. If none is found, the ordinary root
* window is returned, thus retaining backward compatibility with standard
* window managers.
* The function implementing the virtual root lookup remembers the result of
* its last invocation to avoid overhead in the case of repeated calls
* on the same display and screen arguments.
* The lookup code itself is taken from Tom LaStrange's ssetroot program.
*
* Most simple root window changing X programs can be converted to using
* virtual roots by just including
*
* #include <X11/vroot.h>
*
* after all the X11 header files. It has been tested on such popular
* X clients as xphoon, xfroot, xloadimage, and xaqua.
* It also works with the core clients xprop, xwininfo, xwd, and editres
* (and is necessary to get those clients working under tvtwm).
* It does NOT work with xsetroot; get the xsetroot replacement included in
* the tvtwm distribution instead.
*
* Andreas Stolcke <stolcke@ICSI.Berkeley.EDU>, 9/7/90
* - replaced all NULL's with properly cast 0's, 5/6/91
* - free children list (suggested by Mark Martin <mmm@cetia.fr>), 5/16/91
* - include X11/Xlib.h and support RootWindowOfScreen, too 9/17/91
*/
#ifndef _VROOT_H_
#define _VROOT_H_
static Window
VirtualRootWindowOfScreen(screen)
Screen *screen;
{
static Screen *save_screen = (Screen *)0;
static Window root = (Window)0;
if (screen != save_screen) {
Display *dpy = DisplayOfScreen(screen);
Atom __SWM_VROOT = None;
int i;
Window rootReturn, parentReturn, *children;
unsigned int numChildren;
root = RootWindowOfScreen(screen);
/* go look for a virtual root */
__SWM_VROOT = XInternAtom(dpy, "__SWM_VROOT", False);
if (XQueryTree(dpy, root, &rootReturn, &parentReturn,
&children, &numChildren)) {
for (i = 0; i < numChildren; i++) {
Atom actual_type;
int actual_format;
unsigned long nitems, bytesafter;
Window *newRoot = (Window *)0;
if (XGetWindowProperty(dpy, children[i],
__SWM_VROOT, 0, 1, False, XA_WINDOW,
&actual_type, &actual_format,
&nitems, &bytesafter,
(unsigned char **) &newRoot) == Success
&& newRoot) {
root = *newRoot;
break;
}
}
if (children)
XFree((char *)children);
}
save_screen = screen;
}
return root;
}
#undef RootWindowOfScreen
#define RootWindowOfScreen(s) VirtualRootWindowOfScreen(s)
#undef RootWindow
#define RootWindow(dpy,screen) VirtualRootWindowOfScreen(ScreenOfDisplay(dpy,screen))
#undef DefaultRootWindow
#define DefaultRootWindow(dpy) VirtualRootWindowOfScreen(DefaultScreenOfDisplay(dpy))
#endif /* _VROOT_H_ */
/* End vroot.h */
#ifdef DIAGNOSTIC
#ifdef STANDALONE
static const char *progname = 0;
static const char *expected_mozilla_version = "1.1";
#else /* !STANDALONE */
extern const char *progname;
extern const char *expected_mozilla_version;
#endif /* !STANDALONE */
#endif /* DIAGNOSTIC */
#define MOZILLA_VERSION_PROP "_MOZILLA_VERSION"
#define MOZILLA_LOCK_PROP "_MOZILLA_LOCK"
#define MOZILLA_COMMAND_PROP "_MOZILLA_COMMAND"
#define MOZILLA_RESPONSE_PROP "_MOZILLA_RESPONSE"
static Atom XA_MOZILLA_VERSION = 0;
static Atom XA_MOZILLA_LOCK = 0;
static Atom XA_MOZILLA_COMMAND = 0;
static Atom XA_MOZILLA_RESPONSE = 0;
static void
mozilla_remote_init_atoms (Display *dpy)
{
if (! XA_MOZILLA_VERSION)
XA_MOZILLA_VERSION = XInternAtom (dpy, MOZILLA_VERSION_PROP, False);
if (! XA_MOZILLA_LOCK)
XA_MOZILLA_LOCK = XInternAtom (dpy, MOZILLA_LOCK_PROP, False);
if (! XA_MOZILLA_COMMAND)
XA_MOZILLA_COMMAND = XInternAtom (dpy, MOZILLA_COMMAND_PROP, False);
if (! XA_MOZILLA_RESPONSE)
XA_MOZILLA_RESPONSE = XInternAtom (dpy, MOZILLA_RESPONSE_PROP, False);
}
static Window
mozilla_remote_find_window (Display *dpy)
{
int i;
Window root = RootWindowOfScreen (DefaultScreenOfDisplay (dpy));
Window root2, parent, *kids;
unsigned int nkids;
Window result = 0;
if (! XQueryTree (dpy, root, &root2, &parent, &kids, &nkids))
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: XQueryTree failed on display %s\n", progname,
DisplayString (dpy));
#endif
return (0);
}
/* root != root2 is possible with virtual root WMs. */
if (! (kids && nkids))
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: root window has no children on display %s\n",
progname, DisplayString (dpy));
#endif
return (0);
}
for (i = nkids-1; i >= 0; i--)
{
Atom type;
int format;
unsigned long nitems, bytesafter;
unsigned char *version = 0;
Window w = XmuClientWindow (dpy, kids[i]);
int status = XGetWindowProperty (dpy, w, XA_MOZILLA_VERSION,
0, (65536 / sizeof (long)),
False, XA_STRING,
&type, &format, &nitems, &bytesafter,
&version);
if (! version)
continue;
XFree (version);
if (status == Success && type != None)
{
result = w;
break;
}
}
return result;
}
static char *lock_data = 0;
static int
mozilla_remote_obtain_lock (Display *dpy, Window window)
{
Bool locked = False;
Bool waited = False;
if (! lock_data)
{
lock_data = (char *) malloc (255);
sprintf (lock_data, "pid%d@", getpid ());
if (gethostname (lock_data + strlen (lock_data), 100))
{
return (-1);
}
}
do
{
int result;
Atom actual_type;
int actual_format;
unsigned long nitems, bytes_after;
unsigned char *data = 0;
XGrabServer (dpy); /* ################################# DANGER! */
result = XGetWindowProperty (dpy, window, XA_MOZILLA_LOCK,
0, (65536 / sizeof (long)),
False, /* don't delete */
XA_STRING,
&actual_type, &actual_format,
&nitems, &bytes_after,
&data);
if (result != Success || actual_type == None)
{
/* It's not now locked - lock it. */
#ifdef DEBUG_PROPS
fprintf (stderr, "%s: (writing " MOZILLA_LOCK_PROP
" \"%s\" to 0x%x)\n",
progname, lock_data, (unsigned int) window);
#endif
XChangeProperty (dpy, window, XA_MOZILLA_LOCK, XA_STRING, 8,
PropModeReplace, (unsigned char *) lock_data,
strlen (lock_data));
locked = True;
}
XUngrabServer (dpy); /* ################################# danger over */
XSync (dpy, False);
if (! locked)
{
/* We tried to grab the lock this time, and failed because someone
else is holding it already. So, wait for a PropertyDelete event
to come in, and try again. */
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: window 0x%x is locked by %s; waiting...\n",
progname, (unsigned int) window, data);
#endif
waited = True;
while (1)
{
XEvent event;
XNextEvent (dpy, &event);
if (event.xany.type == DestroyNotify &&
event.xdestroywindow.window == window)
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: window 0x%x unexpectedly destroyed.\n",
progname, (unsigned int) window);
#endif
return (6);
}
else if (event.xany.type == PropertyNotify &&
event.xproperty.state == PropertyDelete &&
event.xproperty.window == window &&
event.xproperty.atom == XA_MOZILLA_LOCK)
{
/* Ok! Someone deleted their lock, so now we can try
again. */
#ifdef DEBUG_PROPS
fprintf (stderr, "%s: (0x%x unlocked, trying again...)\n",
progname, (unsigned int) window);
#endif
break;
}
}
}
if (data)
XFree (data);
}
while (! locked);
#ifdef DIAGNOSTIC
if (waited)
fprintf (stderr, "%s: obtained lock.\n", progname);
#endif
return (0);
}
static void
mozilla_remote_free_lock (Display *dpy, Window window)
{
int result;
Atom actual_type;
int actual_format;
unsigned long nitems, bytes_after;
unsigned char *data = 0;
#ifdef DEBUG_PROPS
fprintf (stderr, "%s: (deleting " MOZILLA_LOCK_PROP
" \"%s\" from 0x%x)\n",
progname, lock_data, (unsigned int) window);
#endif
result = XGetWindowProperty (dpy, window, XA_MOZILLA_LOCK,
0, (65536 / sizeof (long)),
True, /* atomic delete after */
XA_STRING,
&actual_type, &actual_format,
&nitems, &bytes_after,
&data);
if (result != Success)
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: unable to read and delete " MOZILLA_LOCK_PROP
" property\n",
progname);
#endif
return;
}
else if (!data || !*data)
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: invalid data on " MOZILLA_LOCK_PROP
" of window 0x%x.\n",
progname, (unsigned int) window);
#endif
return;
}
else if (strcmp ((char *) data, lock_data))
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: " MOZILLA_LOCK_PROP
" was stolen! Expected \"%s\", saw \"%s\"!\n",
progname, lock_data, data);
#endif
return;
}
if (data)
XFree (data);
}
static int
mozilla_remote_command (Display *dpy, Window window, const char *command)
{
int result = 0;
Bool done = False;
#ifdef DEBUG_PROPS
fprintf (stderr, "%s: (writing " MOZILLA_COMMAND_PROP " \"%s\" to 0x%x)\n",
progname, command, (unsigned int) window);
#endif
XChangeProperty (dpy, window, XA_MOZILLA_COMMAND, XA_STRING, 8,
PropModeReplace, (unsigned char *) command,
strlen (command));
while (!done)
{
XEvent event;
XNextEvent (dpy, &event);
if (event.xany.type == DestroyNotify &&
event.xdestroywindow.window == window)
{
/* Print to warn user...*/
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: window 0x%x was destroyed.\n",
progname, (unsigned int) window);
#endif
result = 6;
goto DONE;
}
else if (event.xany.type == PropertyNotify &&
event.xproperty.state == PropertyNewValue &&
event.xproperty.window == window &&
event.xproperty.atom == XA_MOZILLA_RESPONSE)
{
Atom actual_type;
int actual_format;
unsigned long nitems, bytes_after;
unsigned char *data = 0;
result = XGetWindowProperty (dpy, window, XA_MOZILLA_RESPONSE,
0, (65536 / sizeof (long)),
True, /* atomic delete after */
XA_STRING,
&actual_type, &actual_format,
&nitems, &bytes_after,
&data);
#ifdef DEBUG_PROPS
if (result == Success && data && *data)
{
fprintf (stderr, "%s: (server sent " MOZILLA_RESPONSE_PROP
" \"%s\" to 0x%x.)\n",
progname, data, (unsigned int) window);
}
#endif
if (result != Success)
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: failed reading " MOZILLA_RESPONSE_PROP
" from window 0x%0x.\n",
progname, (unsigned int) window);
#endif
result = 6;
done = True;
}
else if (!data || strlen((char *) data) < 5)
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: invalid data on " MOZILLA_RESPONSE_PROP
" property of window 0x%0x.\n",
progname, (unsigned int) window);
#endif
result = 6;
done = True;
}
else if (*data == '1') /* positive preliminary reply */
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: %s\n", progname, data + 4);
#endif
/* keep going */
done = False;
}
#if 1
else if (!strncmp ((char *)data, "200", 3)) /* positive completion */
{
result = 0;
done = True;
}
#endif
else if (*data == '2') /* positive completion */
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: %s\n", progname, data + 4);
#endif
result = 0;
done = True;
}
else if (*data == '3') /* positive intermediate reply */
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: internal error: "
"server wants more information? (%s)\n",
progname, data);
#endif
result = 3;
done = True;
}
else if (*data == '4' || /* transient negative completion */
*data == '5') /* permanent negative completion */
{
#ifdef DIAGNOSTIC
fprintf (stderr, "%s: %s\n", progname, data + 4);
#endif
result = (*data - '0');
done = True;
}
else
{
#ifdef DIAGNOSTIC
fprintf (stderr,
"%s: unrecognised " MOZILLA_RESPONSE_PROP
" from window 0x%x: %s\n",
progname, (unsigned int) window, data);
#endif
result = 6;
done = True;
}
if (data)
XFree (data);
}
#ifdef DEBUG_PROPS
else if (event.xany.type == PropertyNotify &&
event.xproperty.window == window &&
event.xproperty.state == PropertyDelete &&
event.xproperty.atom == XA_MOZILLA_COMMAND)
{
fprintf (stderr, "%s: (server 0x%x has accepted "
MOZILLA_COMMAND_PROP ".)\n",
progname, (unsigned int) window);
}
#endif /* DEBUG_PROPS */
}
DONE:
return result;
}
static int
mozilla_remote (char *command)
{
int status = 0;
Display *dpy;
Window window;
if (!(dpy = XOpenDisplay (NULL)))
return (0);
mozilla_remote_init_atoms (dpy);
if (!(window = mozilla_remote_find_window (dpy)))
return (0);
XSelectInput (dpy, window, (PropertyChangeMask|StructureNotifyMask));
if (mozilla_remote_obtain_lock (dpy, window))
return (0);
status = mozilla_remote_command (dpy, window, command);
/* When status = 6, it means the window has been destroyed */
/* It is invalid to free the lock when window is destroyed. */
if ( status != 6 )
mozilla_remote_free_lock (dpy, window);
return (!status);
}
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