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369126f3 QT |
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 | * Created by Quy Tonthat <qtonthat@gmail.com> | |
21 | */ | |
4c77d5e0 GB |
22 | #ifdef HAVE_CONFIG_H |
23 | #include "config.h" | |
24 | #endif | |
369126f3 | 25 | #include <stdlib.h> |
8c060406 | 26 | #include <stdio.h> |
369126f3 | 27 | #include <string.h> |
8c060406 MA |
28 | #include <glib.h> |
29 | #include <glib/gstdio.h> | |
369126f3 | 30 | #include <glib/gprintf.h> |
4c77d5e0 | 31 | #include <glib/gi18n.h> |
369126f3 QT |
32 | |
33 | #include "viking.h" | |
ba4a5e11 | 34 | #include "util.h" |
369126f3 QT |
35 | #include "curl_download.h" |
36 | ||
37 | #define GOOGLE_SEARCH_URL_FMT "http://maps.google.com/maps?q=%s&output=js" | |
844fde6c QT |
38 | #define GOOGLE_SEARCH_PATTERN_1 "{center:{lat:" |
39 | #define GOOGLE_SEARCH_PATTERN_2 ",lng:" | |
a0fc9d29 | 40 | #define GOOGLE_SEARCH_NOT_FOUND "not understand the location" |
369126f3 QT |
41 | |
42 | static gchar *last_search_str = NULL; | |
014128f6 QT |
43 | static VikCoord *last_coord = NULL; |
44 | static gchar *last_successful_search_str = NULL; | |
45 | ||
1ac37c09 | 46 | static DownloadOptions googlesearch_options = { "http://maps.google.com/", 0, a_check_map_file }; |
a3188993 | 47 | |
014128f6 QT |
48 | gchar * a_googlesearch_get_search_string_for_this_place(VikWindow *vw) |
49 | { | |
812909d1 QT |
50 | if (!last_coord) |
51 | return NULL; | |
52 | ||
014128f6 | 53 | VikViewport *vvp = vik_window_viewport(vw); |
494eb388 | 54 | const VikCoord *cur_center = vik_viewport_get_center(vvp); |
014128f6 QT |
55 | if (vik_coord_equals(cur_center, last_coord)) { |
56 | return(last_successful_search_str); | |
57 | } | |
58 | else | |
59 | return NULL; | |
60 | } | |
369126f3 QT |
61 | |
62 | static gboolean prompt_try_again(VikWindow *vw) | |
63 | { | |
64 | GtkWidget *dialog = NULL; | |
65 | gboolean ret = TRUE; | |
66 | ||
67 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
4c77d5e0 | 68 | gtk_window_set_title(GTK_WINDOW(dialog), _("Search")); |
369126f3 | 69 | |
4c77d5e0 | 70 | GtkWidget *search_label = gtk_label_new(_("I don't know that place. Do you want another search?")); |
369126f3 QT |
71 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_label, FALSE, FALSE, 5 ); |
72 | gtk_widget_show_all(dialog); | |
73 | ||
74 | if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) | |
75 | ret = FALSE; | |
76 | ||
77 | gtk_widget_destroy(dialog); | |
78 | return ret; | |
79 | } | |
80 | ||
81 | static gchar * a_prompt_for_search_string(VikWindow *vw) | |
82 | { | |
83 | GtkWidget *dialog = NULL; | |
84 | ||
85 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
4c77d5e0 | 86 | gtk_window_set_title(GTK_WINDOW(dialog), _("Search")); |
369126f3 | 87 | |
4c77d5e0 | 88 | GtkWidget *search_label = gtk_label_new(_("Enter address or place name:")); |
369126f3 QT |
89 | GtkWidget *search_entry = gtk_entry_new(); |
90 | if (last_search_str) | |
91 | gtk_entry_set_text(GTK_ENTRY(search_entry), last_search_str); | |
92 | ||
93 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_label, FALSE, FALSE, 5 ); | |
94 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_entry, FALSE, FALSE, 5 ); | |
95 | gtk_widget_show_all(dialog); | |
96 | ||
97 | if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) { | |
98 | gtk_widget_destroy(dialog); | |
99 | return NULL; | |
100 | } | |
101 | ||
102 | gchar *search_str = g_strdup ( gtk_entry_get_text ( GTK_ENTRY(search_entry) ) ); | |
103 | ||
369126f3 QT |
104 | gtk_widget_destroy(dialog); |
105 | ||
106 | if (search_str[0] != '\0') { | |
107 | if (last_search_str) | |
108 | g_free(last_search_str); | |
109 | last_search_str = g_strdup(search_str); | |
110 | } | |
111 | ||
112 | return(search_str); /* search_str needs to be freed by caller */ | |
113 | } | |
114 | ||
115 | static gboolean parse_file_for_latlon(gchar *file_name, struct LatLon *ll) | |
116 | { | |
117 | gchar *text, *pat; | |
118 | GMappedFile *mf; | |
119 | gsize len; | |
120 | gboolean found = TRUE; | |
121 | gchar lat_buf[32], lon_buf[32]; | |
122 | gchar *s; | |
123 | ||
369126f3 QT |
124 | lat_buf[0] = lon_buf[0] = '\0'; |
125 | ||
126 | if ((mf = g_mapped_file_new(file_name, FALSE, NULL)) == NULL) { | |
4258f4e2 | 127 | g_critical(_("couldn't map temp file")); |
369126f3 QT |
128 | exit(1); |
129 | } | |
130 | len = g_mapped_file_get_length(mf); | |
131 | text = g_mapped_file_get_contents(mf); | |
132 | ||
d1f48cc2 QT |
133 | if (g_strstr_len(text, len, GOOGLE_SEARCH_NOT_FOUND) != NULL) { |
134 | found = FALSE; | |
135 | goto done; | |
136 | } | |
137 | ||
369126f3 | 138 | if ((pat = g_strstr_len(text, len, GOOGLE_SEARCH_PATTERN_1)) == NULL) { |
369126f3 QT |
139 | found = FALSE; |
140 | goto done; | |
141 | } | |
369126f3 QT |
142 | pat += strlen(GOOGLE_SEARCH_PATTERN_1); |
143 | s = lat_buf; | |
144 | if (*pat == '-') | |
145 | *s++ = *pat++; | |
146 | while ((s < (lat_buf + sizeof(lat_buf))) && (pat < (text + len)) && | |
147 | (g_ascii_isdigit(*pat) || (*pat == '.'))) | |
148 | *s++ = *pat++; | |
149 | *s = '\0'; | |
150 | if ((pat >= (text + len)) || (lat_buf[0] == '\0')) { | |
151 | found = FALSE; | |
152 | goto done; | |
153 | } | |
154 | ||
155 | if (strncmp(pat, GOOGLE_SEARCH_PATTERN_2, strlen(GOOGLE_SEARCH_PATTERN_2))) { | |
156 | found = FALSE; | |
157 | goto done; | |
158 | } | |
369126f3 QT |
159 | |
160 | pat += strlen(GOOGLE_SEARCH_PATTERN_2); | |
161 | s = lon_buf; | |
162 | ||
163 | if (*pat == '-') | |
164 | *s++ = *pat++; | |
165 | while ((s < (lon_buf + sizeof(lon_buf))) && (pat < (text + len)) && | |
166 | (g_ascii_isdigit(*pat) || (*pat == '.'))) | |
167 | *s++ = *pat++; | |
168 | *s = '\0'; | |
169 | if ((pat >= (text + len)) || (lon_buf[0] == '\0')) { | |
170 | found = FALSE; | |
171 | goto done; | |
172 | } | |
173 | ||
174 | ll->lat = g_ascii_strtod(lat_buf, NULL); | |
175 | ll->lon = g_ascii_strtod(lon_buf, NULL); | |
176 | ||
369126f3 QT |
177 | done: |
178 | g_mapped_file_free(mf); | |
369126f3 QT |
179 | return (found); |
180 | ||
181 | } | |
182 | ||
369126f3 QT |
183 | static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_str, VikCoord *coord) |
184 | { | |
185 | FILE *tmp_file; | |
186 | int tmp_fd; | |
187 | gchar *tmpname; | |
188 | gchar *uri; | |
189 | gchar *escaped_srch_str; | |
190 | int ret = 0; /* OK */ | |
191 | struct LatLon ll; | |
192 | ||
87ff9e4b GB |
193 | g_debug("%s: raw search: %s", __FUNCTION__, srch_str); |
194 | ||
369126f3 QT |
195 | escaped_srch_str = uri_escape(srch_str); |
196 | ||
87ff9e4b GB |
197 | g_debug("%s: escaped search: %s", __FUNCTION__, escaped_srch_str); |
198 | ||
d1f48cc2 | 199 | if ((tmp_fd = g_file_open_tmp ("vikgsearch.XXXXXX", &tmpname, NULL)) == -1) { |
4258f4e2 | 200 | g_critical(_("couldn't open temp file")); |
369126f3 QT |
201 | exit(1); |
202 | } | |
203 | ||
204 | tmp_file = fdopen(tmp_fd, "r+"); | |
205 | //uri = g_strdup_printf(GOOGLE_SEARCH_URL_FMT, srch_str); | |
206 | uri = g_strdup_printf(GOOGLE_SEARCH_URL_FMT, escaped_srch_str); | |
207 | ||
369126f3 | 208 | /* TODO: curl may not be available */ |
a3188993 | 209 | if (curl_download_uri(uri, tmp_file, &googlesearch_options)) { /* error */ |
369126f3 | 210 | fclose(tmp_file); |
8c060406 | 211 | tmp_file = NULL; |
369126f3 QT |
212 | ret = -1; |
213 | goto done; | |
214 | } | |
215 | ||
216 | fclose(tmp_file); | |
8c060406 | 217 | tmp_file = NULL; |
369126f3 QT |
218 | if (!parse_file_for_latlon(tmpname, &ll)) { |
219 | ret = -1; | |
220 | goto done; | |
221 | } | |
222 | ||
223 | vik_coord_load_from_latlon ( coord, vik_viewport_get_coord_mode(vvp), &ll ); | |
224 | ||
014128f6 QT |
225 | if (last_coord) |
226 | g_free(last_coord); | |
227 | last_coord = g_malloc(sizeof(VikCoord)); | |
228 | *last_coord = *coord; | |
229 | if (last_successful_search_str) | |
230 | g_free(last_successful_search_str); | |
231 | last_successful_search_str = g_strdup(last_search_str); | |
232 | ||
369126f3 QT |
233 | done: |
234 | g_free(escaped_srch_str); | |
235 | g_free(uri); | |
8c060406 | 236 | g_remove(tmpname); |
369126f3 QT |
237 | g_free(tmpname); |
238 | return ret; | |
239 | } | |
240 | ||
241 | void a_google_search(VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp) | |
242 | { | |
243 | VikCoord new_center; | |
244 | gchar *s_str; | |
245 | gboolean more = TRUE; | |
246 | ||
247 | do { | |
248 | s_str = a_prompt_for_search_string(vw); | |
249 | if ((!s_str) || (s_str[0] == 0)) { | |
250 | more = FALSE; | |
251 | } | |
252 | ||
253 | else if (!google_search_get_coord(vw, vvp, s_str, &new_center)) { | |
254 | vik_viewport_set_center_coord(vvp, &new_center); | |
255 | vik_layers_panel_emit_update(vlp); | |
256 | more = FALSE; | |
257 | } | |
258 | else if (!prompt_try_again(vw)) | |
259 | more = FALSE; | |
260 | g_free(s_str); | |
261 | } while (more); | |
262 | } | |
263 |