Use less precise images when wanted image is not present

[andy/viking.git] / src / googlesearch.c

diff --git a/src/googlesearch.c b/src/googlesearch.c
index 044c130761a4ad5a18e05161c244e6a6c0f4af6c..2e2749de2aed4243cda1a0b68561a5fe842b085c 100644 (file)
--- a/src/googlesearch.c
+++ b/src/googlesearch.c
@@ -19,18 +19,45 @@
  *
  * Created by Quy Tonthat <qtonthat@gmail.com>
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 #include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
+#include <glib.h>
+#include <glib/gstdio.h>
 #include <glib/gprintf.h>
+#include <glib/gi18n.h>
 
 #include "viking.h"
+#include "util.h"
 #include "curl_download.h"
 
 #define GOOGLE_SEARCH_URL_FMT "http://maps.google.com/maps?q=%s&output=js"
-#define GOOGLE_SEARCH_PATTERN_1 "{center: {lat: "
-#define GOOGLE_SEARCH_PATTERN_2 ",lng: "
+#define GOOGLE_SEARCH_PATTERN_1 "{center:{lat:"
+#define GOOGLE_SEARCH_PATTERN_2 ",lng:"
+#define GOOGLE_SEARCH_NOT_FOUND "not understand the location"
 
 static gchar *last_search_str = NULL;
+static VikCoord *last_coord = NULL;
+static gchar *last_successful_search_str = NULL;
+
+static DownloadOptions googlesearch_options = { "http://maps.google.com/", 0, a_check_map_file };
+
+gchar * a_googlesearch_get_search_string_for_this_place(VikWindow *vw)
+{
+  if (!last_coord)
+    return NULL;
+
+  VikViewport *vvp = vik_window_viewport(vw);
+  const VikCoord *cur_center = vik_viewport_get_center(vvp);
+  if (vik_coord_equals(cur_center, last_coord)) {
+    return(last_successful_search_str);
+  }
+  else
+    return NULL;
+}
 
 static gboolean prompt_try_again(VikWindow *vw)
 {
@@ -38,9 +65,9 @@ static gboolean prompt_try_again(VikWindow *vw)
   gboolean ret = TRUE;
 
   dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
-  gtk_window_set_title(GTK_WINDOW(dialog), "Search");
+  gtk_window_set_title(GTK_WINDOW(dialog), _("Search"));
 
-  GtkWidget *search_label = gtk_label_new("I don't know that place. Do you want another search?");
+  GtkWidget *search_label = gtk_label_new(_("I don't know that place. Do you want another search?"));
   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_label, FALSE, FALSE, 5 );
   gtk_widget_show_all(dialog);
 
@@ -56,9 +83,9 @@ static gchar *  a_prompt_for_search_string(VikWindow *vw)
   GtkWidget *dialog = NULL;
 
   dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
-  gtk_window_set_title(GTK_WINDOW(dialog), "Search");
+  gtk_window_set_title(GTK_WINDOW(dialog), _("Search"));
 
-  GtkWidget *search_label = gtk_label_new("Enter address or place name:");
+  GtkWidget *search_label = gtk_label_new(_("Enter address or place name:"));
   GtkWidget *search_entry = gtk_entry_new();
   if (last_search_str)
     gtk_entry_set_text(GTK_ENTRY(search_entry), last_search_str);
@@ -97,12 +124,17 @@ static gboolean parse_file_for_latlon(gchar *file_name, struct LatLon *ll)
   lat_buf[0] = lon_buf[0] = '\0';
 
   if ((mf = g_mapped_file_new(file_name, FALSE, NULL)) == NULL) {
-    g_critical("couldn't map temp file\n");
+    g_critical(_("couldn't map temp file"));
     exit(1);
   }
   len = g_mapped_file_get_length(mf);
   text = g_mapped_file_get_contents(mf);
 
+  if (g_strstr_len(text, len, GOOGLE_SEARCH_NOT_FOUND) != NULL) {
+    found = FALSE;
+    goto done;
+  }
+
   if ((pat = g_strstr_len(text, len, GOOGLE_SEARCH_PATTERN_1)) == NULL) {
     found = FALSE;
     goto done;
@@ -148,26 +180,6 @@ done:
 
 }
 
-gchar *uri_escape(gchar *str)
-{
-  gchar *esc_str = g_malloc(3*strlen(str));
-  gchar *dst = esc_str;
-  gchar *src;
-
-  for (src = str; *src; src++) {
-    if (*src == ' ')
-     *dst++ = '+';
-    else if (g_ascii_isalnum(*src))
-     *dst++ = *src;
-    else {
-      g_sprintf(dst, "%%%02X", *src);
-      dst += 3;
-    }
-  }
-
-    return(esc_str);
-}
-
 static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_str, VikCoord *coord)
 {
   FILE *tmp_file;
@@ -178,10 +190,14 @@ static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_
   int ret = 0;  /* OK */
   struct LatLon ll;
 
+  g_debug("%s: raw search: %s", __FUNCTION__, srch_str);
+
   escaped_srch_str = uri_escape(srch_str);
 
-  if ((tmp_fd = g_file_open_tmp (NULL, &tmpname, NULL)) == -1) {
-    g_critical("couldn't open temp file\n");
+  g_debug("%s: escaped search: %s", __FUNCTION__, escaped_srch_str);
+
+  if ((tmp_fd = g_file_open_tmp ("vikgsearch.XXXXXX", &tmpname, NULL)) == -1) {
+    g_critical(_("couldn't open temp file"));
     exit(1);
   }
 
@@ -190,14 +206,15 @@ static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_
   uri = g_strdup_printf(GOOGLE_SEARCH_URL_FMT, escaped_srch_str);
 
   /* TODO: curl may not be available */
-  if (curl_download_uri(uri, tmp_file)) {  /* error */
-    fprintf(stderr, "DEBUG: %s() download error\n", __PRETTY_FUNCTION__);
+  if (curl_download_uri(uri, tmp_file, &googlesearch_options)) {  /* error */
     fclose(tmp_file);
+    tmp_file = NULL;
     ret = -1;
     goto done;
   }
 
   fclose(tmp_file);
+  tmp_file = NULL;
   if (!parse_file_for_latlon(tmpname, &ll)) {
     ret = -1;
     goto done;
@@ -205,10 +222,18 @@ static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_
 
   vik_coord_load_from_latlon ( coord, vik_viewport_get_coord_mode(vvp), &ll );
 
+  if (last_coord)
+    g_free(last_coord);
+  last_coord = g_malloc(sizeof(VikCoord));
+  *last_coord = *coord;
+  if (last_successful_search_str)
+    g_free(last_successful_search_str);
+  last_successful_search_str = g_strdup(last_search_str);
+
 done:
   g_free(escaped_srch_str);
   g_free(uri);
-  remove(tmpname);
+  g_remove(tmpname);
   g_free(tmpname);
   return ret;
 }