src/datasource_google.c

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21 #include <string.h>
  22 #include <glib/gprintf.h>
  23
  24 #include "viking.h"
  25 #include "babel.h"
  26 #include "gpx.h"
  27 #include "acquire.h"
  28
  29 #define GOOGLE_DIRECTIONS_STRING "(wget -O - \"http://maps.google.com/maps?q=%s to %s&output=js\" 2>/dev/null)"
  30
  31 typedef struct {
  32   GtkWidget *from_entry, *to_entry;
  33 } datasource_google_widgets_t;
  34
  35 static gchar *last_from_str = NULL;
  36 static gchar *last_to_str = NULL;
  37
  38 static gpointer datasource_google_init( );
  39 static void datasource_google_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data );
  40 static void datasource_google_get_cmd_string ( datasource_google_widgets_t *widgets, gchar **cmd, gchar **input_type );
  41 static void datasource_google_cleanup ( gpointer data );
  42
  43 VikDataSourceInterface vik_datasource_google_interface = {
  44   "Google Directions",
  45   "Google Directions",
  46   VIK_DATASOURCE_SHELL_CMD,
  47   VIK_DATASOURCE_ADDTOLAYER,
  48   (VikDataSourceInitFunc)               datasource_google_init,
  49   (VikDataSourceCheckExistenceFunc)     NULL,
  50   (VikDataSourceAddSetupWidgetsFunc)    datasource_google_add_setup_widgets,
  51   (VikDataSourceGetCmdStringFunc)       datasource_google_get_cmd_string,
  52   (VikDataSourceProgressFunc)           NULL,
  53   (VikDataSourceAddProgressWidgetsFunc) NULL,
  54   (VikDataSourceCleanupFunc)            datasource_google_cleanup,
  55 };
  56
  57 static gpointer datasource_google_init ( )
  58 {
  59   datasource_google_widgets_t *widgets = g_malloc(sizeof(*widgets));
  60   return widgets;
  61 }
  62
  63 static void datasource_google_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data )
  64 {
  65   datasource_google_widgets_t *widgets = (datasource_google_widgets_t *)user_data;
  66   GtkWidget *from_label, *to_label;
  67   from_label = gtk_label_new ("From:");
  68   widgets->from_entry = gtk_entry_new();
  69   to_label = gtk_label_new ("To:");
  70   widgets->to_entry = gtk_entry_new();
  71   if (last_from_str)
  72     gtk_entry_set_text(widgets->from_entry, last_from_str);
  73   if (last_to_str)
  74     gtk_entry_set_text(widgets->to_entry, last_to_str);
  75   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), from_label, FALSE, FALSE, 5 );
  76   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->from_entry, FALSE, FALSE, 5 );
  77   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), to_label, FALSE, FALSE, 5 );
  78   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->to_entry, FALSE, FALSE, 5 );
  79   gtk_widget_show_all(dialog);
  80 }
  81
  82 static void datasource_google_get_cmd_string ( datasource_google_widgets_t *widgets, gchar **cmd, gchar **input_type )
  83 {
  84   /* TODO: special characters handling!!! */
  85   gchar *from_quoted, *to_quoted;
  86   from_quoted = g_shell_quote ( gtk_entry_get_text ( GTK_ENTRY(widgets->from_entry) ) );
  87   to_quoted = g_shell_quote ( gtk_entry_get_text ( GTK_ENTRY(widgets->to_entry) ) );
  88
  89   *cmd = g_strdup_printf( GOOGLE_DIRECTIONS_STRING, from_quoted, to_quoted );
  90   *input_type = g_strdup("google");
  91
  92   if (last_from_str)
  93     free(last_from_str);
  94   if (last_to_str)
  95     free(last_to_str);
  96
  97   last_from_str = g_strdup(gtk_entry_get_text ( GTK_ENTRY(widgets->from_entry) ) );
  98   last_to_str = g_strdup(gtk_entry_get_text ( GTK_ENTRY(widgets->to_entry) ) );
  99
 100   g_free(from_quoted);
 101   g_free(to_quoted);
 102 }
 103
 104 static void datasource_google_cleanup ( gpointer data )
 105 {
 106   g_free ( data );
 107 }