trunk/src/geotoad.c

/*
 * Copyright (C) 2009 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of GPXView.
 *
 * GPXView 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 3 of the License, or
 * (at your option) any later version.
 *
 * GPXView 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 GPXView.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "gpxview.h"

#define __USE_GNU
#include <string.h>

#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <math.h>

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
#include <hildon/hildon-entry.h>
#endif

#define GEOTOAD "/usr/bin/geotoad"

#define COLOR_ERR     "red"
#define COLOR_OK      "darkgreen"
#define COLOR_SYSTEM  "darkblue"

#define BUFFER_SIZE  256

typedef enum {
  GT_STATE_ILLEGAL = 0,
  GT_STATE_STARTED,
  GT_STATE_PREMATURE_END,
  GT_STATE_SAVE_FOUND,
} gt_state_t;

typedef struct {
  appdata_t *appdata;
  
  GPtrArray *argv;
  gchar *info, *color;
  GMutex *update_mutex;
  GCond *update_cond;

  gt_state_t state;

  GtkWidget *dialog;

  long pid;

  struct log_s {
    GtkTextBuffer *buffer;
    GtkWidget *view;
  } log;

  GtkWidget *username, *password, *filename;
  GtkWidget *lat, *lon, *dst;

  int use_cnt;
  
} gt_context_t;

static void arg_free(gpointer data, gpointer user_data) {
  if(data) g_free(data);
}

static void context_free(gt_context_t *context) {
  context->use_cnt--;
    
  if(context->use_cnt > 0)
    printf("still in use by %d, keeping context\n", context->use_cnt);
  else {
    printf("freeing context\n");

    if(context->info) g_free(context->info);

    g_ptr_array_foreach(context->argv, arg_free, NULL);
    g_ptr_array_free (context->argv, TRUE);

    g_free(context);
  }
}

static void appendf(struct log_s *log, char *colname, 
                    const char *fmt, ...) {
  va_list args;
  va_start( args, fmt );
  char *buf = g_strdup_vprintf(fmt, args);
  va_end( args );

  //  printf("append: %s", buf);

  GtkTextTag *tag = NULL;
  if(colname)
    tag = gtk_text_buffer_create_tag(log->buffer, NULL,
                                     "foreground", colname,
                                     NULL);
  
  GtkTextIter end;
  gtk_text_buffer_get_end_iter(log->buffer, &end);
  if(tag) 
    gtk_text_buffer_insert_with_tags(log->buffer, &end, buf, -1, tag, NULL);
  else    
    gtk_text_buffer_insert(log->buffer, &end, buf, -1);

  g_free(buf);

  gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(log->view),
                               &end, 0.0, TRUE, 0, 1.0); 
}

// This function receives a requst from a worker thread asking to
// update the gui with the required info.
gboolean cb_update_job(gt_context_t *context) {
  if (context->info) {

    /* check if client reports "saved to ..." */
    if(strstr(context->info, "Saved to "))
      context->state = GT_STATE_SAVE_FOUND;

    appendf(&context->log, context->color, context->info);
    
    g_free(context->info);
    context->info = NULL;
  }
  
  // Indicate that the update is done
  g_mutex_lock(context->update_mutex);
  g_cond_signal(context->update_cond);
  g_mutex_unlock(context->update_mutex);
  
  return FALSE;
}

// A helper function run in the job thread receiving the string that
// should be displayed in the textview.
void append_parentf(gt_context_t *context, char *colname, 
             const char *fmt, ...) {
  va_list args;
  va_start( args, fmt );
  context->info = g_strdup_vprintf(fmt, args);
  va_end( args );

  if(colname)
    context->color = colname;
  else
    context->color = NULL;

  // Lock mutex to make sure that we will receive the condition signal
  g_mutex_lock(context->update_mutex);

  g_idle_add((GSourceFunc)cb_update_job, context);
  
  // Wait for cb_update_job to tell me that the update is done
  g_cond_wait(context->update_cond, context->update_mutex);
  g_mutex_unlock(context->update_mutex);
}

/* custom version of popen to get access to the pid and to be able */
/* to slaughter the child process */
static FILE *gt_popen(gt_context_t *context, char **args, 
                      const char *type, long *tid) {
  int   p[2];
  FILE *fp;
  
  if (*type != 'r' && *type != 'w')
    return NULL;
  
  if (pipe(p) < 0)
    return NULL;
  
  if ((*tid = fork()) > 0) { /* then we are the parent */
    if (*type == 'r') {
      close(p[1]);
      fp = fdopen(p[0], type);
    } else {
      close(p[0]);
      fp = fdopen(p[1], type);
    }
    
    return fp;
  } else if (*tid == 0) {  /* we're the child */

    /* make our thread id the process group leader */
    setpgid(0, 0);
    
    if (*type == 'r') {
      fflush(stdout);
      fflush(stderr);
      close(1);
      if (dup(p[1]) < 0)
        perror("dup of write side of pipe failed");
      close(2);
      if (dup(p[1]) < 0)
        perror("dup of write side of pipe failed");
    } else {
      close(0);
      if (dup(p[0]) < 0)
        perror("dup of read side of pipe failed");
    }
    
    close(p[0]); /* close since we dup()'ed what we needed */
    close(p[1]);
    
    execve(args[0], args, NULL);
    
    /* this printf will actually be redirected through the pipe */
    printf("Error: Failed to execute!\n");
    context_free(context);
    exit(0);
  } else {         /* we're having major problems... */
    close(p[0]);
    close(p[1]);

    /* this printf will actually be redirected through the pipe??? No! */
    printf("Error: Failed to fork!\n");
  }
  
  return NULL;
}

// The thread entry point. It will do the job, send the data to the
// GUI and self destruct when it is done.
static gpointer thread_worker(gt_context_t *context)
{
  FILE *fh;
  GIOStatus status;
  GError *error = NULL;
  gsize length;
  gsize terminator_pos;
  gchar *str_return;

  fh = gt_popen(context, (char**)(context->argv->pdata),"r", &context->pid);
  if(!fh) {
    printf("fail free\n");
    context_free(context);
    //    g_thread_exit(NULL);
    return NULL;
  }

  /* the client is running */
  printf("client inc use_cnt\n");
  context->use_cnt++;

  /* switch to line buffered mode */
  if(setvbuf(fh, NULL, _IOLBF, 0))
    perror("setvbuf(_IOLBF)");
  
  GIOChannel *gh = g_io_channel_unix_new(fileno(fh));

  while( (status = g_io_channel_read_line(gh,
                                          &str_return,
                                          &length,
                                          &terminator_pos,
                                          &error)) == G_IO_STATUS_NORMAL) {
    char *color = NULL;
    if(strstr(str_return, "Saved to "))  color = COLOR_OK;
    if(strcasestr(str_return, "error"))  color = COLOR_ERR;
    
    append_parentf(context, color, str_return);
    g_free(str_return);
  }
  
  g_io_channel_unref(gh);
  pclose(fh);
  append_parentf(context, COLOR_SYSTEM, "Job done!");

  /* TODO: this happens on the copy!!!! */;
  printf("client context free = %d\n", context->use_cnt);
  context_free(context);
  
  //  g_thread_exit(NULL);
  return NULL;
}


static void arg_dsp(gpointer data, gpointer user_data) {
  gt_context_t *context = (gt_context_t*)user_data;
  
  if(data)
    appendf(&context->log, COLOR_SYSTEM, "%s\n", data);
}

static void run(gt_context_t *context) {
  GError *error = NULL;
  char str[8];

  /* build list of arguments to call geotoad */
  context->argv = g_ptr_array_new();
  g_ptr_array_add (context->argv, g_strdup_printf(GEOTOAD "a"));
  g_ascii_dtostr(str, sizeof(str), context->appdata->gt.distance);
  g_ptr_array_add (context->argv, g_strdup_printf("--distanceMax=%s", str));
  g_ptr_array_add (context->argv, g_strdup_printf("--output=%s", context->appdata->gt.filename));
  g_ptr_array_add (context->argv, g_strdup_printf("--password=%s", context->appdata->gt.password));
  g_ptr_array_add (context->argv, g_strdup_printf("--queryType=coord"));
  g_ptr_array_add (context->argv, g_strdup_printf("--user=%s", context->appdata->username));

  /* check if we need to add proxy config */
  char *proxy = NULL;
  if(context->appdata->proxy && context->appdata->proxy->host) {
    if(context->appdata->proxy->use_authentication &&
       context->appdata->proxy->authentication_user &&
       context->appdata->proxy->authentication_password)
      proxy = g_strdup_printf("--proxy=http://%s:%s@%s:%d", 
                              context->appdata->proxy->authentication_user,
                              context->appdata->proxy->authentication_password,
                              context->appdata->proxy->host,
                              context->appdata->proxy->port);
    else
      proxy = g_strdup_printf("--proxy=http://%s:%d", 
                              context->appdata->proxy->host,
                              context->appdata->proxy->port);
    
    g_ptr_array_add (context->argv, proxy);
  }

  /* convert coordinates into simple ascii format */
  char n = (context->appdata->gt.lat >= 0)?'N':'S';
  char e = (context->appdata->gt.lon >= 0)?'E':'W';
  float lat = fabs(context->appdata->gt.lat);
  float lon = fabs(context->appdata->gt.lon);
  float lat_mint, lat_int, lat_frac = modff(lat, &lat_int);
  float lon_mint, lon_int, lon_frac = modff(lon, &lon_int);
  lat_frac = modff(lat_frac*60.0, &lat_mint);
  lon_frac = modff(lon_frac*60.0, &lon_mint);

  g_ptr_array_add (context->argv, 
           g_strdup_printf("%c%02u %02u.%03u %c%03u %02u.%03u",
           n, (int)lat_int, (int)lat_mint, (int)(lat_frac*1000.0+0.5),
           e, (int)lon_int, (int)lon_mint, (int)(lon_frac*1000.0+0.5)));

  //  g_ptr_array_add (context->argv, g_strdup_printf("2>&1"));
  g_ptr_array_add (context->argv, NULL);

  /* show all entries */
  g_ptr_array_foreach(context->argv, arg_dsp, context);

  g_thread_create((GThreadFunc)thread_worker, context, FALSE, &error);
  if (error) {
    appendf(&context->log, COLOR_ERR, "Error: %s\n", error->message);
    g_error_free(error);
  }
}
        
/* show text window and display output of running geotoad */
static void gui_run(gt_context_t *context) {
  GtkWidget *dialog = gtk_dialog_new_with_buttons(_("GeoToad - Run"),
                          GTK_WINDOW(context->appdata->window),
                          GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                          GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
                          NULL);

  gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);

#ifndef USE_PANNABLE_AREA
  GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), 
                                 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
#else
  GtkWidget *pannable_area = hildon_pannable_area_new();
#endif
  
  context->log.buffer = gtk_text_buffer_new(NULL);

#ifndef USE_HILDON_TEXT_VIEW
  context->log.view = gtk_text_view_new_with_buffer(context->log.buffer);
#else
  context->log.view = hildon_text_view_new();
  hildon_text_view_set_buffer(HILDON_TEXT_VIEW(context->log.view), 
                              context->log.buffer);
#endif

#ifndef USE_PANNABLE_AREA
  gtk_container_add(GTK_CONTAINER(scrolled_window), context->log.view);
  gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(scrolled_window),
                                       GTK_SHADOW_IN);

  gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                     scrolled_window, TRUE, TRUE, 0);
#else
  gtk_container_add(GTK_CONTAINER(pannable_area), context->log.view);
  gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                     pannable_area, TRUE, TRUE, 0);
#endif

  gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);

  gtk_widget_show_all(dialog);

  appendf(&context->log, COLOR_SYSTEM, "Running GeoToad\n");
  run(context);

  gtk_dialog_run(GTK_DIALOG(dialog));

  gtk_widget_destroy(dialog);

  errorf("Fertig!\n");

}

static void on_browse(GtkWidget *widget, gpointer data) {
  gt_context_t *context = (gt_context_t*)data;

  printf("Browse %p\n", context->dialog);

#ifdef USE_MAEMO
  GtkWidget *dialog = hildon_file_chooser_dialog_new(GTK_WINDOW(context->dialog), 
                                          GTK_FILE_CHOOSER_ACTION_SAVE);
#else
  GtkWidget *dialog = gtk_file_chooser_dialog_new(_("Save GPX file"),
                                       GTK_WINDOW(context->dialog),
                                       GTK_FILE_CHOOSER_ACTION_SAVE,
                                       GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                       GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
                                       NULL);
#endif

  printf("set filename <%s>\n", context->appdata->gt.filename);

  if(!g_file_test(context->appdata->gt.filename, G_FILE_TEST_EXISTS)) {
    char *last_sep = strrchr(context->appdata->gt.filename, '/');
    if(last_sep) {
      *last_sep = 0;  // seperate path from file 

      /* the user just created a new document */
      gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), 
                                          context->appdata->gt.filename);
      gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), last_sep+1);

      /* restore full filename */
      *last_sep = '/';
    }
  } else 
    gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), 
                                  context->appdata->gt.filename);

  if (gtk_dialog_run (GTK_DIALOG(dialog)) == GTK_FM_OK) {
    gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
    gtk_label_set_text(GTK_LABEL(context->filename), name);
  }
  
  gtk_widget_destroy (dialog);
}

static gboolean gui_setup(gt_context_t *context) {
  appdata_t *appdata = context->appdata;
  gboolean ok = FALSE;

  /* if no filename has been setup yet, create one */
  if(!appdata->gt.filename && appdata->path) {
    printf("creating path\n");
    appdata->gt.filename = 
      g_strdup_printf("%s/gtoad.gpx", appdata->path);
  }

  context->dialog = gtk_dialog_new_with_buttons(_("GeoToad - Setup"),
                        GTK_WINDOW(appdata->window),
                        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                        GTK_STOCK_OK,     GTK_RESPONSE_OK,
                        NULL);

  /* ------------------- Coordinates ------------------------- */
  GtkWidget *hbox = gtk_hbox_new(FALSE, 0);

  GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Position:")));
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Distance:")));
  gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);

  /* setup default positions */
  pos_t *refpos = get_pos(appdata);
  if((isnan(appdata->gt.lat) || isnan(appdata->gt.lat)) && refpos) {
    appdata->gt.lat = refpos->lat;
    appdata->gt.lon = refpos->lon;
  }

  vbox = gtk_vbox_new(FALSE, 0);
  GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
  context->lat = lat_entry_new(appdata->gt.lat);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lat);
  context->lon = lon_entry_new(appdata->gt.lon);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lon);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
  float dst = appdata->gt.distance;  // distance is given in kilometers
  if(appdata->imperial) dst /= 1.609344;
  context->dst = dist_entry_new(dst, appdata->imperial);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->dst);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);

  /* ------------------- file name ------------------------- */
  hbox = gtk_hbox_new(FALSE, 0);

  context->filename = gtk_label_new(appdata->gt.filename);
  gtk_misc_set_alignment(GTK_MISC(context->filename), 0.f, 0.5f);
  gtk_label_set_ellipsize(GTK_LABEL(context->filename), PANGO_ELLIPSIZE_MIDDLE);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->filename);

  GtkWidget *button = gtk_button_new_with_label(_("Browse"));
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
  hildon_gtk_widget_set_theme_size(button, 
           (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
#endif  
  gtk_signal_connect(GTK_OBJECT(button), "clicked",
                     GTK_SIGNAL_FUNC(on_browse), context);
  gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);


  /* ------------------- Username/Password ------------------------- */
  hbox = gtk_hbox_new(FALSE, 0);
  vbox = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Username:")));
  gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Password:")));
  gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
  
  vbox = gtk_vbox_new(FALSE, 0);
#ifndef FREMANTLE
  context->username = gtk_entry_new();
  context->password = gtk_entry_new();
#else
  context->username = hildon_entry_new(HILDON_SIZE_AUTO);
  hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->username),
                                  HILDON_GTK_INPUT_MODE_FULL);
  context->password = hildon_entry_new(HILDON_SIZE_AUTO);
  hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->password),
                                  HILDON_GTK_INPUT_MODE_FULL);
#endif
  gtk_entry_set_visibility(GTK_ENTRY(context->password), FALSE);

  /* set saved defaults */
  if(appdata->username)
    gtk_entry_set_text(GTK_ENTRY(context->username), 
                       appdata->username);

  if(appdata->gt.password)
    gtk_entry_set_text(GTK_ENTRY(context->password), 
                       appdata->gt.password);

  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->username);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->password);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);

  gtk_dialog_set_default_response(GTK_DIALOG(context->dialog), GTK_RESPONSE_OK);

  gtk_widget_show_all(context->dialog);

  if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_OK) {

    /* parse coordinates */
    appdata->gt.lat = lat_get(context->lat);
    appdata->gt.lon = lon_get(context->lon);

    /* save values */
    if(appdata->username) g_free(appdata->username);
    appdata->username = 
      g_strdup(gtk_entry_get_text(GTK_ENTRY(context->username)));
                                             
    if(appdata->gt.password) g_free(appdata->gt.password);
    appdata->gt.password = 
      g_strdup(gtk_entry_get_text(GTK_ENTRY(context->password)));

    if(appdata->gt.filename) g_free(appdata->gt.filename);
    appdata->gt.filename = 
      g_strdup(gtk_label_get_text(GTK_LABEL(context->filename)));

    /* get distance in kilometers */
    appdata->gt.distance = dist_get(context->dst, FALSE);


    /* check for valid entries */
    if(isnan(appdata->gt.lat) || isnan(appdata->gt.lon) ||
       isnan(appdata->gt.distance) || !appdata->gt.filename ||
       !appdata->username || !appdata->gt.password) 
      errorf(_("GeoToad setup not complete"));
    else
      ok = TRUE;
  }

  gtk_widget_destroy(context->dialog);

  return ok;
}

void geotoad(appdata_t *appdata) {
  if(!geotoad_available()) {
    errorf(_("GeoToad is not installed on this device.\n"
             "You need to install it in order to be able to use it."));
    return;
  }

  gt_context_t *context = g_new0(gt_context_t, 1);
  context->appdata = appdata;
  context->use_cnt++;          // parent still uses this

  context->update_mutex = g_mutex_new();
  context->update_cond = g_cond_new();
  //  context->mutex_to_run = mutex_to_run;

  printf("geoToad\n");

  if(gui_setup(context))
    gui_run(context);

  printf("main context free\n");
  context_free(context);
}

gboolean geotoad_available(void) {
  /* before doing anything make sure geotoad is installed */
  return g_file_test(GEOTOAD, G_FILE_TEST_IS_EXECUTABLE);
}


1	/*
2	* Copyright (C) 2009 Till Harbaum <till@harbaum.org>.
3	*
4	* This file is part of GPXView.
5	*
6	* GPXView 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 3 of the License, or
9	* (at your option) any later version.
10	*
11	* GPXView 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 GPXView. If not, see <http://www.gnu.org/licenses/>.
18	*/
19
20	#include "gpxview.h"
21
22	#define __USE_GNU
23	#include <string.h>
24
25	#include <fcntl.h>
26	#include <sys/types.h>
27	#include <sys/wait.h>
28	#include <errno.h>
29	#include <math.h>
30
31	#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
32	#include <hildon/hildon-entry.h>
33	#endif
34
35	#define GEOTOAD "/usr/bin/geotoad"
36
37	#define COLOR_ERR "red"
38	#define COLOR_OK "darkgreen"
39	#define COLOR_SYSTEM "darkblue"
40
41	#define BUFFER_SIZE 256
42
43	typedef enum {
44	GT_STATE_ILLEGAL = 0,
45	GT_STATE_STARTED,
46	GT_STATE_PREMATURE_END,
47	GT_STATE_SAVE_FOUND,
48	} gt_state_t;
49
50	typedef struct {
51	appdata_t *appdata;
52
53	GPtrArray *argv;
54	gchar info, color;
55	GMutex *update_mutex;
56	GCond *update_cond;
57
58	gt_state_t state;
59
60	GtkWidget *dialog;
61
62	long pid;
63
64	struct log_s {
65	GtkTextBuffer *buffer;
66	GtkWidget *view;
67	} log;
68
69	GtkWidget username, password, *filename;
70	GtkWidget lat, lon, *dst;
71
72	int use_cnt;
73
74	} gt_context_t;
75
76	static void arg_free(gpointer data, gpointer user_data) {
77	if(data) g_free(data);
78	}
79
80	static void context_free(gt_context_t *context) {
81	context->use_cnt--;
82
83	if(context->use_cnt > 0)
84	printf("still in use by %d, keeping context\n", context->use_cnt);
85	else {
86	printf("freeing context\n");
87
88	if(context->info) g_free(context->info);
89
90	g_ptr_array_foreach(context->argv, arg_free, NULL);
91	g_ptr_array_free (context->argv, TRUE);
92
93	g_free(context);
94	}
95	}
96
97	static void appendf(struct log_s log, char colname,
98	const char *fmt, ...) {
99	va_list args;
100	va_start( args, fmt );
101	char *buf = g_strdup_vprintf(fmt, args);
102	va_end( args );
103
104	// printf("append: %s", buf);
105
106	GtkTextTag *tag = NULL;
107	if(colname)
108	tag = gtk_text_buffer_create_tag(log->buffer, NULL,
109	"foreground", colname,
110	NULL);
111
112	GtkTextIter end;
113	gtk_text_buffer_get_end_iter(log->buffer, &end);
114	if(tag)
115	gtk_text_buffer_insert_with_tags(log->buffer, &end, buf, -1, tag, NULL);
116	else
117	gtk_text_buffer_insert(log->buffer, &end, buf, -1);
118
119	g_free(buf);
120
121	gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(log->view),
122	&end, 0.0, TRUE, 0, 1.0);
123	}
124
125	// This function receives a requst from a worker thread asking to
126	// update the gui with the required info.
127	gboolean cb_update_job(gt_context_t *context) {
128	if (context->info) {
129
130	/* check if client reports "saved to ..." */
131	if(strstr(context->info, "Saved to "))
132	context->state = GT_STATE_SAVE_FOUND;
133
134	appendf(&context->log, context->color, context->info);
135
136	g_free(context->info);
137	context->info = NULL;
138	}
139
140	// Indicate that the update is done
141	g_mutex_lock(context->update_mutex);
142	g_cond_signal(context->update_cond);
143	g_mutex_unlock(context->update_mutex);
144
145	return FALSE;
146	}
147
148	// A helper function run in the job thread receiving the string that
149	// should be displayed in the textview.
150	void append_parentf(gt_context_t context, char colname,
151	const char *fmt, ...) {
152	va_list args;
153	va_start( args, fmt );
154	context->info = g_strdup_vprintf(fmt, args);
155	va_end( args );
156
157	if(colname)
158	context->color = colname;
159	else
160	context->color = NULL;
161
162	// Lock mutex to make sure that we will receive the condition signal
163	g_mutex_lock(context->update_mutex);
164
165	g_idle_add((GSourceFunc)cb_update_job, context);
166
167	// Wait for cb_update_job to tell me that the update is done
168	g_cond_wait(context->update_cond, context->update_mutex);
169	g_mutex_unlock(context->update_mutex);
170	}
171
172	/* custom version of popen to get access to the pid and to be able */
173	/* to slaughter the child process */
174	static FILE gt_popen(gt_context_t context, char **args,
175	const char type, long tid) {
176	int p[2];
177	FILE *fp;
178
179	if (type != 'r' && type != 'w')
180	return NULL;
181
182	if (pipe(p) < 0)
183	return NULL;
184
185	if ((tid = fork()) > 0) { / then we are the parent */
186	if (*type == 'r') {
187	close(p[1]);
188	fp = fdopen(p[0], type);
189	} else {
190	close(p[0]);
191	fp = fdopen(p[1], type);
192	}
193
194	return fp;
195	} else if (tid == 0) { / we're the child */
196
197	/* make our thread id the process group leader */
198	setpgid(0, 0);
199
200	if (*type == 'r') {
201	fflush(stdout);
202	fflush(stderr);
203	close(1);
204	if (dup(p[1]) < 0)
205	perror("dup of write side of pipe failed");
206	close(2);
207	if (dup(p[1]) < 0)
208	perror("dup of write side of pipe failed");
209	} else {
210	close(0);
211	if (dup(p[0]) < 0)
212	perror("dup of read side of pipe failed");
213	}
214
215	close(p[0]); /* close since we dup()'ed what we needed */
216	close(p[1]);
217
218	execve(args[0], args, NULL);
219
220	/* this printf will actually be redirected through the pipe */
221	printf("Error: Failed to execute!\n");
222	context_free(context);
223	exit(0);
224	} else { /* we're having major problems... */
225	close(p[0]);
226	close(p[1]);
227
228	/* this printf will actually be redirected through the pipe??? No! */
229	printf("Error: Failed to fork!\n");
230	}
231
232	return NULL;
233	}
234
235	// The thread entry point. It will do the job, send the data to the
236	// GUI and self destruct when it is done.
237	static gpointer thread_worker(gt_context_t *context)
238	{
239	FILE *fh;
240	GIOStatus status;
241	GError *error = NULL;
242	gsize length;
243	gsize terminator_pos;
244	gchar *str_return;
245
246	fh = gt_popen(context, (char**)(context->argv->pdata),"r", &context->pid);
247	if(!fh) {
248	printf("fail free\n");
249	context_free(context);
250	// g_thread_exit(NULL);
251	return NULL;
252	}
253
254	/* the client is running */
255	printf("client inc use_cnt\n");
256	context->use_cnt++;
257
258	/* switch to line buffered mode */
259	if(setvbuf(fh, NULL, _IOLBF, 0))
260	perror("setvbuf(_IOLBF)");
261
262	GIOChannel *gh = g_io_channel_unix_new(fileno(fh));
263
264	while( (status = g_io_channel_read_line(gh,
265	&str_return,
266	&length,
267	&terminator_pos,
268	&error)) == G_IO_STATUS_NORMAL) {
269	char *color = NULL;
270	if(strstr(str_return, "Saved to ")) color = COLOR_OK;
271	if(strcasestr(str_return, "error")) color = COLOR_ERR;
272
273	append_parentf(context, color, str_return);
274	g_free(str_return);
275	}
276
277	g_io_channel_unref(gh);
278	pclose(fh);
279	append_parentf(context, COLOR_SYSTEM, "Job done!");
280
281	/* TODO: this happens on the copy!!!! */;
282	printf("client context free = %d\n", context->use_cnt);
283	context_free(context);
284
285	// g_thread_exit(NULL);
286	return NULL;
287	}
288
289
290	static void arg_dsp(gpointer data, gpointer user_data) {
291	gt_context_t context = (gt_context_t)user_data;
292
293	if(data)
294	appendf(&context->log, COLOR_SYSTEM, "%s\n", data);
295	}
296
297	static void run(gt_context_t *context) {
298	GError *error = NULL;
299	char str[8];
300
301	/* build list of arguments to call geotoad */
302	context->argv = g_ptr_array_new();
303	g_ptr_array_add (context->argv, g_strdup_printf(GEOTOAD "a"));
304	g_ascii_dtostr(str, sizeof(str), context->appdata->gt.distance);
305	g_ptr_array_add (context->argv, g_strdup_printf("--distanceMax=%s", str));
306	g_ptr_array_add (context->argv, g_strdup_printf("--output=%s", context->appdata->gt.filename));
307	g_ptr_array_add (context->argv, g_strdup_printf("--password=%s", context->appdata->gt.password));
308	g_ptr_array_add (context->argv, g_strdup_printf("--queryType=coord"));
309	g_ptr_array_add (context->argv, g_strdup_printf("--user=%s", context->appdata->username));
310
311	/* check if we need to add proxy config */
312	char *proxy = NULL;
313	if(context->appdata->proxy && context->appdata->proxy->host) {
314	if(context->appdata->proxy->use_authentication &&
315	context->appdata->proxy->authentication_user &&
316	context->appdata->proxy->authentication_password)
317	proxy = g_strdup_printf("--proxy=http://%s:%s@%s:%d",
318	context->appdata->proxy->authentication_user,
319	context->appdata->proxy->authentication_password,
320	context->appdata->proxy->host,
321	context->appdata->proxy->port);
322	else
323	proxy = g_strdup_printf("--proxy=http://%s:%d",
324	context->appdata->proxy->host,
325	context->appdata->proxy->port);
326
327	g_ptr_array_add (context->argv, proxy);
328	}
329
330	/* convert coordinates into simple ascii format */
331	char n = (context->appdata->gt.lat >= 0)?'N':'S';
332	char e = (context->appdata->gt.lon >= 0)?'E':'W';
333	float lat = fabs(context->appdata->gt.lat);
334	float lon = fabs(context->appdata->gt.lon);
335	float lat_mint, lat_int, lat_frac = modff(lat, &lat_int);
336	float lon_mint, lon_int, lon_frac = modff(lon, &lon_int);
337	lat_frac = modff(lat_frac*60.0, &lat_mint);
338	lon_frac = modff(lon_frac*60.0, &lon_mint);
339
340	g_ptr_array_add (context->argv,
341	g_strdup_printf("%c%02u %02u.%03u %c%03u %02u.%03u",
342	n, (int)lat_int, (int)lat_mint, (int)(lat_frac*1000.0+0.5),
343	e, (int)lon_int, (int)lon_mint, (int)(lon_frac*1000.0+0.5)));
344
345	// g_ptr_array_add (context->argv, g_strdup_printf("2>&1"));
346	g_ptr_array_add (context->argv, NULL);
347
348	/* show all entries */
349	g_ptr_array_foreach(context->argv, arg_dsp, context);
350
351	g_thread_create((GThreadFunc)thread_worker, context, FALSE, &error);
352	if (error) {
353	appendf(&context->log, COLOR_ERR, "Error: %s\n", error->message);
354	g_error_free(error);
355	}
356	}
357
358	/* show text window and display output of running geotoad */
359	static void gui_run(gt_context_t *context) {
360	GtkWidget *dialog = gtk_dialog_new_with_buttons(_("GeoToad - Run"),
361	GTK_WINDOW(context->appdata->window),
362	GTK_DIALOG_MODAL \| GTK_DIALOG_DESTROY_WITH_PARENT,
363	GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
364	NULL);
365
366	gtk_window_set_default_size(GTK_WINDOW(dialog), 640, 480);
367
368	#ifndef USE_PANNABLE_AREA
369	GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
370	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
371	GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
372	#else
373	GtkWidget *pannable_area = hildon_pannable_area_new();
374	#endif
375
376	context->log.buffer = gtk_text_buffer_new(NULL);
377
378	#ifndef USE_HILDON_TEXT_VIEW
379	context->log.view = gtk_text_view_new_with_buffer(context->log.buffer);
380	#else
381	context->log.view = hildon_text_view_new();
382	hildon_text_view_set_buffer(HILDON_TEXT_VIEW(context->log.view),
383	context->log.buffer);
384	#endif
385
386	#ifndef USE_PANNABLE_AREA
387	gtk_container_add(GTK_CONTAINER(scrolled_window), context->log.view);
388	gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(scrolled_window),
389	GTK_SHADOW_IN);
390
391	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox),
392	scrolled_window, TRUE, TRUE, 0);
393	#else
394	gtk_container_add(GTK_CONTAINER(pannable_area), context->log.view);
395	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox),
396	pannable_area, TRUE, TRUE, 0);
397	#endif
398
399	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
400
401	gtk_widget_show_all(dialog);
402
403	appendf(&context->log, COLOR_SYSTEM, "Running GeoToad\n");
404	run(context);
405
406	gtk_dialog_run(GTK_DIALOG(dialog));
407
408	gtk_widget_destroy(dialog);
409
410	errorf("Fertig!\n");
411
412	}
413
414	static void on_browse(GtkWidget *widget, gpointer data) {
415	gt_context_t context = (gt_context_t)data;
416
417	printf("Browse %p\n", context->dialog);
418
419	#ifdef USE_MAEMO
420	GtkWidget *dialog = hildon_file_chooser_dialog_new(GTK_WINDOW(context->dialog),
421	GTK_FILE_CHOOSER_ACTION_SAVE);
422	#else
423	GtkWidget *dialog = gtk_file_chooser_dialog_new(_("Save GPX file"),
424	GTK_WINDOW(context->dialog),
425	GTK_FILE_CHOOSER_ACTION_SAVE,
426	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
427	GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
428	NULL);
429	#endif
430
431	printf("set filename <%s>\n", context->appdata->gt.filename);
432
433	if(!g_file_test(context->appdata->gt.filename, G_FILE_TEST_EXISTS)) {
434	char *last_sep = strrchr(context->appdata->gt.filename, '/');
435	if(last_sep) {
436	*last_sep = 0; // seperate path from file
437
438	/* the user just created a new document */
439	gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog),
440	context->appdata->gt.filename);
441	gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), last_sep+1);
442
443	/* restore full filename */
444	*last_sep = '/';
445	}
446	} else
447	gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog),
448	context->appdata->gt.filename);
449
450	if (gtk_dialog_run (GTK_DIALOG(dialog)) == GTK_FM_OK) {
451	gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
452	gtk_label_set_text(GTK_LABEL(context->filename), name);
453	}
454
455	gtk_widget_destroy (dialog);
456	}
457
458	static gboolean gui_setup(gt_context_t *context) {
459	appdata_t *appdata = context->appdata;
460	gboolean ok = FALSE;
461
462	/* if no filename has been setup yet, create one */
463	if(!appdata->gt.filename && appdata->path) {
464	printf("creating path\n");
465	appdata->gt.filename =
466	g_strdup_printf("%s/gtoad.gpx", appdata->path);
467	}
468
469	context->dialog = gtk_dialog_new_with_buttons(_("GeoToad - Setup"),
470	GTK_WINDOW(appdata->window),
471	GTK_DIALOG_MODAL \| GTK_DIALOG_DESTROY_WITH_PARENT,
472	GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
473	GTK_STOCK_OK, GTK_RESPONSE_OK,
474	NULL);
475
476	/* ------------------- Coordinates ------------------------- */
477	GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
478
479	GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
480	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Position:")));
481	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Distance:")));
482	gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
483
484	/* setup default positions */
485	pos_t *refpos = get_pos(appdata);
486	if((isnan(appdata->gt.lat) \|\| isnan(appdata->gt.lat)) && refpos) {
487	appdata->gt.lat = refpos->lat;
488	appdata->gt.lon = refpos->lon;
489	}
490
491	vbox = gtk_vbox_new(FALSE, 0);
492	GtkWidget *ihbox = gtk_hbox_new(FALSE, 0);
493	context->lat = lat_entry_new(appdata->gt.lat);
494	gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lat);
495	context->lon = lon_entry_new(appdata->gt.lon);
496	gtk_box_pack_start_defaults(GTK_BOX(ihbox), context->lon);
497	gtk_box_pack_start_defaults(GTK_BOX(vbox), ihbox);
498	float dst = appdata->gt.distance; // distance is given in kilometers
499	if(appdata->imperial) dst /= 1.609344;
500	context->dst = dist_entry_new(dst, appdata->imperial);
501	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->dst);
502	gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
503
504	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
505
506	/* ------------------- file name ------------------------- */
507	hbox = gtk_hbox_new(FALSE, 0);
508
509	context->filename = gtk_label_new(appdata->gt.filename);
510	gtk_misc_set_alignment(GTK_MISC(context->filename), 0.f, 0.5f);
511	gtk_label_set_ellipsize(GTK_LABEL(context->filename), PANGO_ELLIPSIZE_MIDDLE);
512	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->filename);
513
514	GtkWidget *button = gtk_button_new_with_label(_("Browse"));
515	#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR == 5)
516	hildon_gtk_widget_set_theme_size(button,
517	(HILDON_SIZE_FINGER_HEIGHT \| HILDON_SIZE_AUTO_WIDTH));
518	#endif
519	gtk_signal_connect(GTK_OBJECT(button), "clicked",
520	GTK_SIGNAL_FUNC(on_browse), context);
521	gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
522
523	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
524
525
526	/* ------------------- Username/Password ------------------------- */
527	hbox = gtk_hbox_new(FALSE, 0);
528	vbox = gtk_vbox_new(FALSE, 0);
529	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Username:")));
530	gtk_box_pack_start_defaults(GTK_BOX(vbox), left_label_new(_("Password:")));
531	gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
532
533	vbox = gtk_vbox_new(FALSE, 0);
534	#ifndef FREMANTLE
535	context->username = gtk_entry_new();
536	context->password = gtk_entry_new();
537	#else
538	context->username = hildon_entry_new(HILDON_SIZE_AUTO);
539	hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->username),
540	HILDON_GTK_INPUT_MODE_FULL);
541	context->password = hildon_entry_new(HILDON_SIZE_AUTO);
542	hildon_gtk_entry_set_input_mode(GTK_ENTRY(context->password),
543	HILDON_GTK_INPUT_MODE_FULL);
544	#endif
545	gtk_entry_set_visibility(GTK_ENTRY(context->password), FALSE);
546
547	/* set saved defaults */
548	if(appdata->username)
549	gtk_entry_set_text(GTK_ENTRY(context->username),
550	appdata->username);
551
552	if(appdata->gt.password)
553	gtk_entry_set_text(GTK_ENTRY(context->password),
554	appdata->gt.password);
555
556	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->username);
557	gtk_box_pack_start_defaults(GTK_BOX(vbox), context->password);
558	gtk_box_pack_start_defaults(GTK_BOX(hbox), vbox);
559
560	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(context->dialog)->vbox), hbox);
561
562	gtk_dialog_set_default_response(GTK_DIALOG(context->dialog), GTK_RESPONSE_OK);
563
564	gtk_widget_show_all(context->dialog);
565
566	if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_OK) {
567
568	/* parse coordinates */
569	appdata->gt.lat = lat_get(context->lat);
570	appdata->gt.lon = lon_get(context->lon);
571
572	/* save values */
573	if(appdata->username) g_free(appdata->username);
574	appdata->username =
575	g_strdup(gtk_entry_get_text(GTK_ENTRY(context->username)));
576
577	if(appdata->gt.password) g_free(appdata->gt.password);
578	appdata->gt.password =
579	g_strdup(gtk_entry_get_text(GTK_ENTRY(context->password)));
580
581	if(appdata->gt.filename) g_free(appdata->gt.filename);
582	appdata->gt.filename =
583	g_strdup(gtk_label_get_text(GTK_LABEL(context->filename)));
584
585	/* get distance in kilometers */
586	appdata->gt.distance = dist_get(context->dst, FALSE);
587
588
589	/* check for valid entries */
590	if(isnan(appdata->gt.lat) \|\| isnan(appdata->gt.lon) \|\|
591	isnan(appdata->gt.distance) \|\| !appdata->gt.filename \|\|
592	!appdata->username \|\| !appdata->gt.password)
593	errorf(_("GeoToad setup not complete"));
594	else
595	ok = TRUE;
596	}
597
598	gtk_widget_destroy(context->dialog);
599
600	return ok;
601	}
602
603	void geotoad(appdata_t *appdata) {
604	if(!geotoad_available()) {
605	errorf(_("GeoToad is not installed on this device.\n"
606	"You need to install it in order to be able to use it."));
607	return;
608	}
609
610	gt_context_t *context = g_new0(gt_context_t, 1);
611	context->appdata = appdata;
612	context->use_cnt++; // parent still uses this
613
614	context->update_mutex = g_mutex_new();
615	context->update_cond = g_cond_new();
616	// context->mutex_to_run = mutex_to_run;
617
618	printf("geoToad\n");
619
620	if(gui_setup(context))
621	gui_run(context);
622
623	printf("main context free\n");
624	context_free(context);
625	}
626
627	gboolean geotoad_available(void) {
628	/* before doing anything make sure geotoad is installed */
629	return g_file_test(GEOTOAD, G_FILE_TEST_IS_EXECUTABLE);
630	}
631
632