]>
Commit | Line | Data |
---|---|---|
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" | |
34 | #include "curl_download.h" | |
35 | ||
36 | #define GOOGLE_SEARCH_URL_FMT "http://maps.google.com/maps?q=%s&output=js" | |
844fde6c QT |
37 | #define GOOGLE_SEARCH_PATTERN_1 "{center:{lat:" |
38 | #define GOOGLE_SEARCH_PATTERN_2 ",lng:" | |
d1f48cc2 | 39 | #define GOOGLE_SEARCH_NOT_FOUND "around this map area did not match any locations" |
369126f3 QT |
40 | |
41 | static gchar *last_search_str = NULL; | |
014128f6 QT |
42 | static VikCoord *last_coord = NULL; |
43 | static gchar *last_successful_search_str = NULL; | |
44 | ||
1ac37c09 | 45 | static DownloadOptions googlesearch_options = { "http://maps.google.com/", 0, a_check_map_file }; |
a3188993 | 46 | |
014128f6 QT |
47 | gchar * a_googlesearch_get_search_string_for_this_place(VikWindow *vw) |
48 | { | |
812909d1 QT |
49 | if (!last_coord) |
50 | return NULL; | |
51 | ||
014128f6 | 52 | VikViewport *vvp = vik_window_viewport(vw); |
494eb388 | 53 | const VikCoord *cur_center = vik_viewport_get_center(vvp); |
014128f6 QT |
54 | if (vik_coord_equals(cur_center, last_coord)) { |
55 | return(last_successful_search_str); | |
56 | } | |
57 | else | |
58 | return NULL; | |
59 | } | |
369126f3 QT |
60 | |
61 | static gboolean prompt_try_again(VikWindow *vw) | |
62 | { | |
63 | GtkWidget *dialog = NULL; | |
64 | gboolean ret = TRUE; | |
65 | ||
66 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
4c77d5e0 | 67 | gtk_window_set_title(GTK_WINDOW(dialog), _("Search")); |
369126f3 | 68 | |
4c77d5e0 | 69 | GtkWidget *search_label = gtk_label_new(_("I don't know that place. Do you want another search?")); |
369126f3 QT |
70 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_label, FALSE, FALSE, 5 ); |
71 | gtk_widget_show_all(dialog); | |
72 | ||
73 | if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) | |
74 | ret = FALSE; | |
75 | ||
76 | gtk_widget_destroy(dialog); | |
77 | return ret; | |
78 | } | |
79 | ||
80 | static gchar * a_prompt_for_search_string(VikWindow *vw) | |
81 | { | |
82 | GtkWidget *dialog = NULL; | |
83 | ||
84 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
4c77d5e0 | 85 | gtk_window_set_title(GTK_WINDOW(dialog), _("Search")); |
369126f3 | 86 | |
4c77d5e0 | 87 | GtkWidget *search_label = gtk_label_new(_("Enter address or place name:")); |
369126f3 QT |
88 | GtkWidget *search_entry = gtk_entry_new(); |
89 | if (last_search_str) | |
90 | gtk_entry_set_text(GTK_ENTRY(search_entry), last_search_str); | |
91 | ||
92 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_label, FALSE, FALSE, 5 ); | |
93 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), search_entry, FALSE, FALSE, 5 ); | |
94 | gtk_widget_show_all(dialog); | |
95 | ||
96 | if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) { | |
97 | gtk_widget_destroy(dialog); | |
98 | return NULL; | |
99 | } | |
100 | ||
101 | gchar *search_str = g_strdup ( gtk_entry_get_text ( GTK_ENTRY(search_entry) ) ); | |
102 | ||
369126f3 QT |
103 | gtk_widget_destroy(dialog); |
104 | ||
105 | if (search_str[0] != '\0') { | |
106 | if (last_search_str) | |
107 | g_free(last_search_str); | |
108 | last_search_str = g_strdup(search_str); | |
109 | } | |
110 | ||
111 | return(search_str); /* search_str needs to be freed by caller */ | |
112 | } | |
113 | ||
114 | static gboolean parse_file_for_latlon(gchar *file_name, struct LatLon *ll) | |
115 | { | |
116 | gchar *text, *pat; | |
117 | GMappedFile *mf; | |
118 | gsize len; | |
119 | gboolean found = TRUE; | |
120 | gchar lat_buf[32], lon_buf[32]; | |
121 | gchar *s; | |
122 | ||
369126f3 QT |
123 | lat_buf[0] = lon_buf[0] = '\0'; |
124 | ||
125 | if ((mf = g_mapped_file_new(file_name, FALSE, NULL)) == NULL) { | |
4258f4e2 | 126 | g_critical(_("couldn't map temp file")); |
369126f3 QT |
127 | exit(1); |
128 | } | |
129 | len = g_mapped_file_get_length(mf); | |
130 | text = g_mapped_file_get_contents(mf); | |
131 | ||
d1f48cc2 QT |
132 | if (g_strstr_len(text, len, GOOGLE_SEARCH_NOT_FOUND) != NULL) { |
133 | found = FALSE; | |
134 | goto done; | |
135 | } | |
136 | ||
369126f3 | 137 | if ((pat = g_strstr_len(text, len, GOOGLE_SEARCH_PATTERN_1)) == NULL) { |
369126f3 QT |
138 | found = FALSE; |
139 | goto done; | |
140 | } | |
369126f3 QT |
141 | pat += strlen(GOOGLE_SEARCH_PATTERN_1); |
142 | s = lat_buf; | |
143 | if (*pat == '-') | |
144 | *s++ = *pat++; | |
145 | while ((s < (lat_buf + sizeof(lat_buf))) && (pat < (text + len)) && | |
146 | (g_ascii_isdigit(*pat) || (*pat == '.'))) | |
147 | *s++ = *pat++; | |
148 | *s = '\0'; | |
149 | if ((pat >= (text + len)) || (lat_buf[0] == '\0')) { | |
150 | found = FALSE; | |
151 | goto done; | |
152 | } | |
153 | ||
154 | if (strncmp(pat, GOOGLE_SEARCH_PATTERN_2, strlen(GOOGLE_SEARCH_PATTERN_2))) { | |
155 | found = FALSE; | |
156 | goto done; | |
157 | } | |
369126f3 QT |
158 | |
159 | pat += strlen(GOOGLE_SEARCH_PATTERN_2); | |
160 | s = lon_buf; | |
161 | ||
162 | if (*pat == '-') | |
163 | *s++ = *pat++; | |
164 | while ((s < (lon_buf + sizeof(lon_buf))) && (pat < (text + len)) && | |
165 | (g_ascii_isdigit(*pat) || (*pat == '.'))) | |
166 | *s++ = *pat++; | |
167 | *s = '\0'; | |
168 | if ((pat >= (text + len)) || (lon_buf[0] == '\0')) { | |
169 | found = FALSE; | |
170 | goto done; | |
171 | } | |
172 | ||
173 | ll->lat = g_ascii_strtod(lat_buf, NULL); | |
174 | ll->lon = g_ascii_strtod(lon_buf, NULL); | |
175 | ||
369126f3 QT |
176 | done: |
177 | g_mapped_file_free(mf); | |
369126f3 QT |
178 | return (found); |
179 | ||
180 | } | |
181 | ||
182 | gchar *uri_escape(gchar *str) | |
183 | { | |
184 | gchar *esc_str = g_malloc(3*strlen(str)); | |
185 | gchar *dst = esc_str; | |
186 | gchar *src; | |
187 | ||
188 | for (src = str; *src; src++) { | |
189 | if (*src == ' ') | |
190 | *dst++ = '+'; | |
191 | else if (g_ascii_isalnum(*src)) | |
192 | *dst++ = *src; | |
193 | else { | |
194 | g_sprintf(dst, "%%%02X", *src); | |
195 | dst += 3; | |
196 | } | |
197 | } | |
198 | ||
199 | return(esc_str); | |
200 | } | |
201 | ||
202 | static int google_search_get_coord(VikWindow *vw, VikViewport *vvp, gchar *srch_str, VikCoord *coord) | |
203 | { | |
204 | FILE *tmp_file; | |
205 | int tmp_fd; | |
206 | gchar *tmpname; | |
207 | gchar *uri; | |
208 | gchar *escaped_srch_str; | |
209 | int ret = 0; /* OK */ | |
210 | struct LatLon ll; | |
211 | ||
212 | escaped_srch_str = uri_escape(srch_str); | |
213 | ||
d1f48cc2 | 214 | if ((tmp_fd = g_file_open_tmp ("vikgsearch.XXXXXX", &tmpname, NULL)) == -1) { |
4258f4e2 | 215 | g_critical(_("couldn't open temp file")); |
369126f3 QT |
216 | exit(1); |
217 | } | |
218 | ||
219 | tmp_file = fdopen(tmp_fd, "r+"); | |
220 | //uri = g_strdup_printf(GOOGLE_SEARCH_URL_FMT, srch_str); | |
221 | uri = g_strdup_printf(GOOGLE_SEARCH_URL_FMT, escaped_srch_str); | |
222 | ||
369126f3 | 223 | /* TODO: curl may not be available */ |
a3188993 | 224 | if (curl_download_uri(uri, tmp_file, &googlesearch_options)) { /* error */ |
369126f3 | 225 | fclose(tmp_file); |
8c060406 | 226 | tmp_file = NULL; |
369126f3 QT |
227 | ret = -1; |
228 | goto done; | |
229 | } | |
230 | ||
231 | fclose(tmp_file); | |
8c060406 | 232 | tmp_file = NULL; |
369126f3 QT |
233 | if (!parse_file_for_latlon(tmpname, &ll)) { |
234 | ret = -1; | |
235 | goto done; | |
236 | } | |
237 | ||
238 | vik_coord_load_from_latlon ( coord, vik_viewport_get_coord_mode(vvp), &ll ); | |
239 | ||
014128f6 QT |
240 | if (last_coord) |
241 | g_free(last_coord); | |
242 | last_coord = g_malloc(sizeof(VikCoord)); | |
243 | *last_coord = *coord; | |
244 | if (last_successful_search_str) | |
245 | g_free(last_successful_search_str); | |
246 | last_successful_search_str = g_strdup(last_search_str); | |
247 | ||
369126f3 QT |
248 | done: |
249 | g_free(escaped_srch_str); | |
250 | g_free(uri); | |
8c060406 | 251 | g_remove(tmpname); |
369126f3 QT |
252 | g_free(tmpname); |
253 | return ret; | |
254 | } | |
255 | ||
256 | void a_google_search(VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp) | |
257 | { | |
258 | VikCoord new_center; | |
259 | gchar *s_str; | |
260 | gboolean more = TRUE; | |
261 | ||
262 | do { | |
263 | s_str = a_prompt_for_search_string(vw); | |
264 | if ((!s_str) || (s_str[0] == 0)) { | |
265 | more = FALSE; | |
266 | } | |
267 | ||
268 | else if (!google_search_get_coord(vw, vvp, s_str, &new_center)) { | |
269 | vik_viewport_set_center_coord(vvp, &new_center); | |
270 | vik_layers_panel_emit_update(vlp); | |
271 | more = FALSE; | |
272 | } | |
273 | else if (!prompt_try_again(vw)) | |
274 | more = FALSE; | |
275 | g_free(s_str); | |
276 | } while (more); | |
277 | } | |
278 |