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/*
* Copyright (C) Florian Boor <florian.boor@kernelconcepts.de>
*
* Rewrite for integration of new GPE help system:
* Copyright (C) Philippe De Swert <philippedeswert@scarlet.be>
*
* Dedicated to Rammstein - Live in Berlin - Disk 1
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <gtk/gtk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gdk/gdk.h>
#include <glib.h>
/* helper function definitions*/
char *gpe_check_for_help (const char *appname); /* can be used as a quick help check when starting an app */
static GKeyFile *load_help_key_file (void);
/**
* gpe_show_help:
* @appname: Name of the application to show help about.
* @topic: String describing help topic.
*
* This function provides a generic interface for displaying
* full text online help. It is intended to be independent from
* file format and location.
* Return value is FALSE if help is found and displayed, TRUE
* if an error occurs.
*
* Returns: TRUE if an error occured, FALSE otherwise.
*/
gboolean
gpe_show_help (const char *appname, const char *topic)
{
gchar *helpfile;
gchar *helpadress;
gchar *apps = "gpe-helpviewer gpe-mini-browser dillo minimo";
gchar **app, **applist;
const gchar *command=NULL;
gboolean spawn = FALSE;
/* lookup help file */
helpfile = gpe_check_for_help (appname);
if (helpfile == NULL)
return TRUE;
/* check if the file is readable */
if (access (helpfile, R_OK))
{
#if defined DEBUG
printf ("helpfile %s, not readable\n", helpfile);
#endif
return TRUE;
}
/* construct the complete help address */
if ((topic) && strlen (topic))
helpadress = g_strdup_printf ("%s#%s", helpfile, topic);
else
helpadress = helpfile;
/* make array of strings to be able to check for the different aplications */
app = g_strsplit (apps, " ", 0);
applist = app;
while (*app != NULL)
{
command = g_strdup_printf ("%s %s", *app, helpadress);
#if defined DEBUG
printf ("command = %s\n", command);
#endif
spawn = g_spawn_command_line_async (command, NULL);
if (spawn)
return FALSE;
app++;
}
if (!spawn)
{
g_free ((char *)command);
g_free (helpfile);
g_strfreev (applist);
if (helpadress != helpfile)
g_free (helpadress);
return TRUE;
}
/* should never get here */
return TRUE;
}
/**
* gpe_check_for_help:
* @appname: Name of the application.
*
* Checks for the existance of any installed help. Returns NULL if no help, or
* if the help for that particular application is not installed.
* If the help is found it returns the filename to that help.
*
* Returns: Filename if help is installed.
*/
char *
gpe_check_for_help (const char *appname)
{
gchar *file;
GKeyFile *info;
info = load_help_key_file ();
if (info == NULL)
{
return NULL;
}
else
{
file = g_key_file_get_value (info, "Help", appname, NULL);
g_free (info);
return file;
}
}
/*
* Loads the keyfile in memory and returns a pointer to it.
* This will be NULL if no help is installed or the helpviewer
* configuration file is not there
*/
static GKeyFile *
load_help_key_file (void)
{
GKeyFile *config;
gboolean loaded;
const char *filename = "/etc/gpe/gpe-help.conf";
config = g_key_file_new ();
loaded =
g_key_file_load_from_file (config, filename, G_KEY_FILE_NONE, NULL);
if (loaded)
return config;
else
return NULL;
}
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