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/* diff.c - diff plugin.
*
* Copyright (C) 1998 Chris Lahey.
*
* 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <config.h>
#include <gnome.h>
#include "client.h"
static GtkWidget *entry1;
static GtkWidget *entry2;
static gint context;
void call_diff( GtkWidget *widget, gint button, gpointer data );
static void set_entry( GtkWidget *widget, gpointer data )
{
GtkWidget *file_sel = gtk_widget_get_toplevel( widget );
gtk_entry_set_text( GTK_ENTRY( data ),
gtk_file_selection_get_filename
( GTK_FILE_SELECTION( file_sel ) ) );
gtk_widget_destroy( file_sel );
}
static void open_file_sel( GtkWidget *widget, gpointer data )
{
GtkWidget *file_sel = gtk_file_selection_new( "Choose a file" );
gtk_signal_connect( GTK_OBJECT( GTK_FILE_SELECTION( file_sel )->ok_button ),
"clicked", GTK_SIGNAL_FUNC( set_entry ), data );
gtk_signal_connect_object( GTK_OBJECT( GTK_FILE_SELECTION( file_sel )
->cancel_button ), "clicked",
GTK_SIGNAL_FUNC( gtk_widget_destroy ),
GTK_OBJECT( file_sel ) );
gtk_widget_show_all( file_sel );
}
static void done( GtkWidget *widget, gpointer data )
{
client_finish(context);
gtk_main_quit();
}
int main( int argc, char *argv[] )
{
GtkWidget *label;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *dialog;
client_info info = empty_info;
info.menu_location = "[Plugins]Diff";
context = client_init( &argc, &argv, &info );
/* gtk_init( &argc, &argv ); */
bindtextdomain(PACKAGE, GNOMELOCALEDIR);
textdomain(PACKAGE);
gnome_init("diff-plugin", VERSION, argc, argv);
dialog = gnome_dialog_new( "Choose file to diff",
"Calculate Diff",
GNOME_STOCK_BUTTON_CANCEL,
NULL);
gnome_dialog_set_default( GNOME_DIALOG( dialog ), 0 );
gtk_signal_connect( GTK_OBJECT( dialog ), "destroy",
GTK_SIGNAL_FUNC( done ), NULL );
gtk_signal_connect( GTK_OBJECT( dialog ), "clicked",
GTK_SIGNAL_FUNC( call_diff ), NULL );
label = gtk_label_new( "Choose files to diff:" );
gtk_box_pack_start( GTK_BOX( GNOME_DIALOG( dialog )->vbox ), label,
FALSE, FALSE, 0 );
hbox = gtk_hbox_new( FALSE, 0 );
gtk_box_pack_start( GTK_BOX( GNOME_DIALOG( dialog )->vbox ), hbox,
FALSE, FALSE, 0 );
entry1 = gtk_entry_new();
gtk_box_pack_start( GTK_BOX( hbox ), entry1, TRUE, TRUE, 0 );
button = gtk_button_new_with_label( "Browse..." );
gtk_signal_connect( GTK_OBJECT( button ), "clicked",
GTK_SIGNAL_FUNC( open_file_sel ), entry1 );
gtk_box_pack_start( GTK_BOX( hbox ), button, FALSE, FALSE, 0 );
entry2 = gtk_entry_new();
gtk_box_pack_start( GTK_BOX( hbox ), entry2, TRUE, TRUE, 0 );
button = gtk_button_new_with_label( "Browse..." );
gtk_signal_connect( GTK_OBJECT( button ), "clicked",
GTK_SIGNAL_FUNC( open_file_sel ), entry2 );
gtk_box_pack_start( GTK_BOX( hbox ), button, FALSE, FALSE, 0 );
gtk_widget_show_all( dialog );
gtk_main();
exit( 0 );
}
void call_diff( GtkWidget *widget, gint button, gpointer data )
{
char buff[1025];
int fdpipe[2];
int pid;
char *filenames[2] = { NULL, NULL };
int docid;
int length;
if ( button == 0 )
{
filenames[0] = gtk_entry_get_text( GTK_ENTRY( entry1 ) );
filenames[1] = gtk_entry_get_text( GTK_ENTRY( entry2 ) );
if( pipe( fdpipe ) == -1 )
{
_exit( 1 );
}
pid = fork();
if ( pid == 0 )
{
/* New process. */
char *argv[4];
close( 1 );
dup( fdpipe[1] );
close( fdpipe[0] );
close( fdpipe[1] );
argv[0] = g_strdup( "diff" );
argv[1] = filenames[0];
argv[2] = filenames[1];
argv[3] = NULL;
execv( "/usr/bin/diff", argv );
/* This is only reached if something goes wrong. */
_exit( 1 );
}
close( fdpipe[1] );
docid = client_document_new( context, "difference" );
length = 1;
while( length > 0 )
{
buff[ length = read( fdpipe[0], buff, 1024 ) ] = 0;
if( length > 0 )
{
client_text_append( docid, buff, length );
}
}
client_document_show( docid );
}
gnome_dialog_close( GNOME_DIALOG( widget ) );
}
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