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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (c) 2013, Guilhem Bonnefille <guilhem.bonnefille@gmail.com> | |
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 | ||
22 | /** | |
23 | * SECTION:vikroutingwebengine | |
24 | * @short_description: A generic class for WEB based routing engine | |
25 | * | |
26 | * The #VikRoutingWebEngine class handles WEB based | |
27 | * routing engine. | |
28 | */ | |
29 | ||
30 | #ifdef HAVE_CONFIG_H | |
31 | #include "config.h" | |
32 | #endif | |
33 | ||
34 | #include <string.h> | |
35 | ||
36 | #include <glib.h> | |
37 | #include <glib/gstdio.h> | |
38 | ||
39 | #include "babel.h" | |
40 | ||
41 | #include "vikroutingwebengine.h" | |
42 | ||
43 | static void vik_routing_web_engine_finalize ( GObject *gob ); | |
44 | ||
45 | static gboolean vik_routing_web_engine_find ( VikRoutingEngine *self, VikTrwLayer *vtl, struct LatLon start, struct LatLon end ); | |
46 | static gchar *vik_routing_web_engine_get_url_from_directions(VikRoutingEngine *self, const gchar *start, const gchar *end); | |
47 | static gboolean vik_routing_web_engine_supports_direction(VikRoutingEngine *self); | |
48 | static gboolean vik_routing_web_engine_refine ( VikRoutingEngine *self, VikTrwLayer *vtl, VikTrack *vt ); | |
49 | static gboolean vik_routing_web_engine_supports_refine ( VikRoutingEngine *self ); | |
50 | ||
51 | typedef struct _VikRoutingWebEnginePrivate VikRoutingWebEnginePrivate; | |
52 | struct _VikRoutingWebEnginePrivate | |
53 | { | |
54 | gchar *url_base; | |
55 | ||
56 | /* LatLon */ | |
57 | gchar *url_start_ll_fmt; | |
58 | gchar *url_stop_ll_fmt; | |
59 | gchar *url_via_ll_fmt; | |
60 | ||
61 | /* Directions */ | |
62 | gchar *url_start_dir_fmt; | |
63 | gchar *url_stop_dir_fmt; | |
64 | ||
65 | DownloadMapOptions options; | |
66 | }; | |
67 | ||
68 | #define VIK_ROUTING_WEB_ENGINE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VIK_ROUTING_WEB_ENGINE_TYPE, VikRoutingWebEnginePrivate)) | |
69 | ||
70 | /* properties */ | |
71 | enum | |
72 | { | |
73 | PROP_0, | |
74 | ||
75 | PROP_URL_BASE, | |
76 | ||
77 | /* LatLon */ | |
78 | PROP_URL_START_LL, | |
79 | PROP_URL_STOP_LL, | |
80 | PROP_URL_VIA_LL, | |
81 | ||
82 | /* Direction */ | |
83 | PROP_URL_START_DIR, | |
84 | PROP_URL_STOP_DIR, | |
85 | ||
86 | PROP_REFERER, | |
87 | PROP_FOLLOW_LOCATION, | |
88 | }; | |
89 | ||
90 | G_DEFINE_TYPE (VikRoutingWebEngine, vik_routing_web_engine, VIK_ROUTING_ENGINE_TYPE) | |
91 | ||
92 | static void | |
93 | vik_routing_web_engine_set_property (GObject *object, | |
94 | guint property_id, | |
95 | const GValue *value, | |
96 | GParamSpec *pspec) | |
97 | { | |
98 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( object ); | |
99 | ||
100 | switch (property_id) | |
101 | { | |
102 | case PROP_URL_BASE: | |
103 | g_free (priv->url_base); | |
104 | priv->url_base = g_strdup(g_value_get_string (value)); | |
105 | break; | |
106 | ||
107 | case PROP_URL_START_LL: | |
108 | g_free (priv->url_start_ll_fmt); | |
109 | priv->url_start_ll_fmt = g_strdup(g_value_get_string (value)); | |
110 | break; | |
111 | ||
112 | case PROP_URL_STOP_LL: | |
113 | g_free (priv->url_stop_ll_fmt); | |
114 | priv->url_stop_ll_fmt = g_strdup(g_value_get_string (value)); | |
115 | break; | |
116 | ||
117 | case PROP_URL_VIA_LL: | |
118 | g_free (priv->url_via_ll_fmt); | |
119 | priv->url_via_ll_fmt = g_strdup(g_value_get_string (value)); | |
120 | break; | |
121 | ||
122 | case PROP_URL_START_DIR: | |
123 | g_free (priv->url_start_dir_fmt); | |
124 | priv->url_start_dir_fmt = g_strdup(g_value_get_string (value)); | |
125 | break; | |
126 | ||
127 | case PROP_URL_STOP_DIR: | |
128 | g_free (priv->url_stop_dir_fmt); | |
129 | priv->url_stop_dir_fmt = g_strdup(g_value_get_string (value)); | |
130 | break; | |
131 | ||
132 | case PROP_REFERER: | |
133 | g_free (priv->options.referer); | |
134 | priv->options.referer = g_value_dup_string (value); | |
135 | break; | |
136 | ||
137 | case PROP_FOLLOW_LOCATION: | |
138 | priv->options.follow_location = g_value_get_long (value); | |
139 | break; | |
140 | ||
141 | default: | |
142 | /* We don't have any other property... */ | |
143 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
144 | break; | |
145 | } | |
146 | } | |
147 | ||
148 | static void | |
149 | vik_routing_web_engine_get_property (GObject *object, | |
150 | guint property_id, | |
151 | GValue *value, | |
152 | GParamSpec *pspec) | |
153 | { | |
154 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( object ); | |
155 | ||
156 | switch (property_id) | |
157 | { | |
158 | case PROP_URL_BASE: | |
159 | g_value_set_string (value, priv->url_base); | |
160 | break; | |
161 | ||
162 | case PROP_URL_START_LL: | |
163 | g_value_set_string (value, priv->url_start_ll_fmt); | |
164 | break; | |
165 | ||
166 | case PROP_URL_STOP_LL: | |
167 | g_value_set_string (value, priv->url_stop_ll_fmt); | |
168 | break; | |
169 | ||
170 | case PROP_URL_VIA_LL: | |
171 | g_value_set_string (value, priv->url_via_ll_fmt); | |
172 | break; | |
173 | ||
174 | case PROP_URL_START_DIR: | |
175 | g_value_set_string (value, priv->url_start_dir_fmt); | |
176 | break; | |
177 | ||
178 | case PROP_URL_STOP_DIR: | |
179 | g_value_set_string (value, priv->url_stop_dir_fmt); | |
180 | break; | |
181 | ||
182 | case PROP_REFERER: | |
183 | g_value_set_string (value, priv->options.referer); | |
184 | break; | |
185 | ||
186 | case PROP_FOLLOW_LOCATION: | |
187 | g_value_set_long (value, priv->options.follow_location); | |
188 | break; | |
189 | ||
190 | default: | |
191 | /* We don't have any other property... */ | |
192 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
193 | break; | |
194 | } | |
195 | } | |
196 | ||
197 | static void vik_routing_web_engine_class_init ( VikRoutingWebEngineClass *klass ) | |
198 | { | |
199 | GObjectClass *object_class; | |
200 | VikRoutingEngineClass *parent_class; | |
201 | GParamSpec *pspec = NULL; | |
202 | ||
203 | object_class = G_OBJECT_CLASS (klass); | |
204 | ||
205 | object_class->set_property = vik_routing_web_engine_set_property; | |
206 | object_class->get_property = vik_routing_web_engine_get_property; | |
207 | object_class->finalize = vik_routing_web_engine_finalize; | |
208 | ||
209 | parent_class = VIK_ROUTING_ENGINE_CLASS (klass); | |
210 | ||
211 | parent_class->find = vik_routing_web_engine_find; | |
212 | parent_class->supports_direction = vik_routing_web_engine_supports_direction; | |
213 | parent_class->get_url_from_directions = vik_routing_web_engine_get_url_from_directions; | |
214 | parent_class->refine = vik_routing_web_engine_refine; | |
215 | parent_class->supports_refine = vik_routing_web_engine_supports_refine; | |
216 | ||
217 | /** | |
218 | * VikRoutingWebEngine:url-base: | |
219 | * | |
220 | * The base URL of the routing engine. | |
221 | */ | |
222 | pspec = g_param_spec_string ("url-base", | |
223 | "URL's base", | |
224 | "The base URL of the routing engine", | |
225 | "<no-set>" /* default value */, | |
226 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
227 | g_object_class_install_property (object_class, PROP_URL_BASE, pspec); | |
228 | ||
229 | ||
230 | /** | |
231 | * VikRoutingWebEngine:url-start-ll: | |
232 | * | |
233 | * The part of the request hosting the end point. | |
234 | */ | |
235 | pspec = g_param_spec_string ("url-start-ll", | |
236 | "Start part of the URL", | |
237 | "The part of the request hosting the start point", | |
238 | "<no-set>" /* default value */, | |
239 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
240 | g_object_class_install_property (object_class, PROP_URL_START_LL, pspec); | |
241 | ||
242 | ||
243 | /** | |
244 | * VikRoutingWebEngine:url-stop-ll: | |
245 | * | |
246 | * The part of the request hosting the end point. | |
247 | */ | |
248 | pspec = g_param_spec_string ("url-stop-ll", | |
249 | "Stop part of the URL", | |
250 | "The part of the request hosting the end point", | |
251 | "<no-set>" /* default value */, | |
252 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
253 | g_object_class_install_property (object_class, PROP_URL_STOP_LL, pspec); | |
254 | ||
255 | ||
256 | /** | |
257 | * VikRoutingWebEngine:url-via-ll: | |
258 | * | |
259 | * The param of the request for setting a via point. | |
260 | */ | |
261 | pspec = g_param_spec_string ("url-via-ll", | |
262 | "Via part of the URL", | |
263 | "The param of the request for setting a via point", | |
264 | NULL /* default value */, | |
265 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
266 | g_object_class_install_property (object_class, PROP_URL_VIA_LL, pspec); | |
267 | ||
268 | ||
269 | /** | |
270 | * VikRoutingWebEngine:url-start-dir: | |
271 | * | |
272 | * The part of the request hosting the end point. | |
273 | */ | |
274 | pspec = g_param_spec_string ("url-start-dir", | |
275 | "Start part of the URL", | |
276 | "The part of the request hosting the start point", | |
277 | NULL /* default value */, | |
278 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
279 | g_object_class_install_property (object_class, PROP_URL_START_DIR, pspec); | |
280 | ||
281 | ||
282 | /** | |
283 | * VikRoutingWebEngine:url-stop-dir: | |
284 | * | |
285 | * The part of the request hosting the end point. | |
286 | */ | |
287 | pspec = g_param_spec_string ("url-stop-dir", | |
288 | "Stop part of the URL", | |
289 | "The part of the request hosting the end point", | |
290 | NULL /* default value */, | |
291 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
292 | g_object_class_install_property (object_class, PROP_URL_STOP_DIR, pspec); | |
293 | ||
294 | ||
295 | /** | |
296 | * VikRoutingWebEngine:referer: | |
297 | * | |
298 | * The REFERER string to use in HTTP request. | |
299 | */ | |
300 | pspec = g_param_spec_string ("referer", | |
301 | "Referer", | |
302 | "The REFERER string to use in HTTP request", | |
303 | NULL /* default value */, | |
304 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
305 | g_object_class_install_property (object_class, PROP_REFERER, pspec); | |
306 | ||
307 | ||
308 | /** | |
309 | * VikRoutingWebEngine:follow-location: | |
310 | * | |
311 | * Specifies the number of retries to follow a redirect while downloading a page. | |
312 | */ | |
313 | pspec = g_param_spec_long ("follow-location", | |
314 | "Follow location", | |
315 | "Specifies the number of retries to follow a redirect while downloading a page", | |
316 | 0 /* minimum value */, | |
317 | G_MAXLONG /* maximum value */, | |
318 | 2 /* default value */, | |
319 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
320 | g_object_class_install_property (object_class, PROP_FOLLOW_LOCATION, pspec); | |
321 | ||
322 | g_type_class_add_private (klass, sizeof (VikRoutingWebEnginePrivate)); | |
323 | } | |
324 | ||
325 | static void vik_routing_web_engine_init ( VikRoutingWebEngine *self ) | |
326 | { | |
327 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
328 | ||
329 | priv->url_base = NULL; | |
330 | ||
331 | /* LatLon */ | |
332 | priv->url_start_ll_fmt = NULL; | |
333 | priv->url_stop_ll_fmt = NULL; | |
334 | priv->url_via_ll_fmt = NULL; | |
335 | ||
336 | /* Directions */ | |
337 | priv->url_start_dir_fmt = NULL; | |
338 | priv->url_stop_dir_fmt = NULL; | |
339 | ||
340 | priv->options.referer = NULL; | |
341 | priv->options.follow_location = 0; | |
342 | priv->options.check_file = NULL; | |
343 | priv->options.check_file_server_time = FALSE; | |
344 | priv->options.use_etag = FALSE; | |
345 | } | |
346 | ||
347 | static void vik_routing_web_engine_finalize ( GObject *gob ) | |
348 | { | |
349 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( gob ); | |
350 | ||
351 | g_free (priv->url_base); | |
352 | priv->url_base = NULL; | |
353 | ||
354 | /* LatLon */ | |
355 | g_free (priv->url_start_ll_fmt); | |
356 | priv->url_start_ll_fmt = NULL; | |
357 | g_free (priv->url_stop_ll_fmt); | |
358 | priv->url_stop_ll_fmt = NULL; | |
359 | g_free (priv->url_via_ll_fmt); | |
360 | priv->url_via_ll_fmt = NULL; | |
361 | ||
362 | /* Directions */ | |
363 | g_free (priv->url_start_dir_fmt); | |
364 | priv->url_start_dir_fmt = NULL; | |
365 | g_free (priv->url_stop_dir_fmt); | |
366 | priv->url_stop_dir_fmt = NULL; | |
367 | ||
368 | g_free (priv->options.referer); | |
369 | priv->options.referer = NULL; | |
370 | ||
371 | G_OBJECT_CLASS (vik_routing_web_engine_parent_class)->finalize(gob); | |
372 | } | |
373 | ||
374 | static DownloadMapOptions * | |
375 | vik_routing_web_engine_get_download_options ( VikRoutingEngine *self ) | |
376 | { | |
377 | g_return_val_if_fail (VIK_IS_ROUTING_WEB_ENGINE(self), NULL); | |
378 | ||
379 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE(self); | |
380 | ||
381 | return &(priv->options); | |
382 | } | |
383 | ||
384 | static gchar * | |
385 | substitute_latlon ( const gchar *fmt, struct LatLon ll ) | |
386 | { | |
387 | gchar lat[G_ASCII_DTOSTR_BUF_SIZE], lon[G_ASCII_DTOSTR_BUF_SIZE]; | |
388 | gchar *substituted = g_strdup_printf(fmt, | |
389 | g_ascii_dtostr (lat, G_ASCII_DTOSTR_BUF_SIZE, (gdouble) ll.lat), | |
390 | g_ascii_dtostr (lon, G_ASCII_DTOSTR_BUF_SIZE, (gdouble) ll.lon)); | |
391 | return substituted; | |
392 | } | |
393 | ||
394 | static gchar * | |
395 | vik_routing_web_engine_get_url_for_coords ( VikRoutingEngine *self, struct LatLon start, struct LatLon end ) | |
396 | { | |
397 | gchar *startURL; | |
398 | gchar *endURL; | |
399 | gchar *url; | |
400 | ||
401 | g_return_val_if_fail ( VIK_IS_ROUTING_WEB_ENGINE (self), NULL); | |
402 | ||
403 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
404 | ||
405 | g_return_val_if_fail ( priv->url_base != NULL, NULL); | |
406 | g_return_val_if_fail ( priv->url_start_ll_fmt != NULL, NULL); | |
407 | g_return_val_if_fail ( priv->url_stop_ll_fmt != NULL, NULL); | |
408 | ||
409 | startURL = substitute_latlon ( priv->url_start_ll_fmt, start ); | |
410 | endURL = substitute_latlon ( priv->url_stop_ll_fmt, end ); | |
411 | url = g_strconcat ( priv->url_base, startURL, endURL, NULL ); | |
412 | ||
413 | /* Free memory */ | |
414 | g_free ( startURL ); | |
415 | g_free ( endURL ); | |
416 | ||
417 | return url; | |
418 | } | |
419 | ||
420 | static gboolean | |
421 | vik_routing_web_engine_find ( VikRoutingEngine *self, VikTrwLayer *vtl, struct LatLon start, struct LatLon end ) | |
422 | { | |
423 | gchar *uri = vik_routing_web_engine_get_url_for_coords(self, start, end); | |
424 | ||
425 | DownloadMapOptions *options = vik_routing_web_engine_get_download_options(self); | |
426 | ||
427 | gchar *format = vik_routing_engine_get_format ( self ); | |
428 | ProcessOptions po = { NULL, NULL, format, uri, NULL, NULL }; | |
429 | gboolean ret = a_babel_convert_from ( vtl, &po, NULL, NULL, options ); | |
430 | ||
431 | g_free(uri); | |
432 | ||
433 | return ret; | |
434 | } | |
435 | ||
436 | static gchar * | |
437 | vik_routing_web_engine_get_url_from_directions ( VikRoutingEngine *self, const gchar *start, const gchar *end ) | |
438 | { | |
439 | g_return_val_if_fail ( VIK_IS_ROUTING_WEB_ENGINE (self), NULL); | |
440 | ||
441 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
442 | ||
443 | g_return_val_if_fail ( priv->url_base != NULL, NULL); | |
444 | g_return_val_if_fail ( priv->url_start_dir_fmt != NULL, NULL); | |
445 | g_return_val_if_fail ( priv->url_stop_dir_fmt != NULL, NULL); | |
446 | ||
447 | gchar *from_quoted, *to_quoted; | |
448 | gchar **from_split, **to_split; | |
449 | from_quoted = g_shell_quote ( start ); | |
450 | to_quoted = g_shell_quote ( end ); | |
451 | ||
452 | from_split = g_strsplit( from_quoted, " ", 0); | |
453 | to_split = g_strsplit( to_quoted, " ", 0); | |
454 | ||
455 | from_quoted = g_strjoinv( "%20", from_split); | |
456 | to_quoted = g_strjoinv( "%20", to_split); | |
457 | ||
458 | gchar *url_fmt = g_strconcat ( priv->url_base, priv->url_start_dir_fmt, priv->url_stop_dir_fmt, NULL ); | |
459 | gchar *url = g_strdup_printf ( url_fmt, from_quoted, to_quoted ); | |
460 | ||
461 | g_free ( url_fmt ); | |
462 | ||
463 | g_free(from_quoted); | |
464 | g_free(to_quoted); | |
465 | g_strfreev(from_split); | |
466 | g_strfreev(to_split); | |
467 | ||
468 | return url; | |
469 | } | |
470 | ||
471 | static gboolean | |
472 | vik_routing_web_engine_supports_direction ( VikRoutingEngine *self ) | |
473 | { | |
474 | g_return_val_if_fail ( VIK_IS_ROUTING_WEB_ENGINE (self), FALSE); | |
475 | ||
476 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
477 | ||
478 | return (priv->url_start_dir_fmt) != NULL; | |
479 | } | |
480 | ||
481 | struct _append_ctx { | |
482 | VikRoutingWebEnginePrivate *priv; | |
483 | gchar **urlParts; | |
484 | int nb; | |
485 | }; | |
486 | ||
487 | static void | |
488 | _append_stringified_coords ( gpointer data, gpointer user_data ) | |
489 | { | |
490 | VikTrackpoint *vtp = (VikTrackpoint*)data; | |
491 | struct _append_ctx *ctx = (struct _append_ctx*)user_data; | |
492 | ||
493 | /* Stringify coordinate */ | |
494 | struct LatLon position; | |
495 | vik_coord_to_latlon ( &(vtp->coord), &position ); | |
496 | gchar *string = substitute_latlon ( ctx->priv->url_via_ll_fmt, position ); | |
497 | ||
498 | /* Append */ | |
499 | ctx->urlParts[ctx->nb] = string; | |
500 | ctx->nb++; | |
501 | } | |
502 | ||
503 | static gchar * | |
504 | vik_routing_web_engine_get_url_for_track ( VikRoutingEngine *self, VikTrack *vt ) | |
505 | { | |
506 | gchar **urlParts; | |
507 | gchar *url; | |
508 | ||
509 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
510 | ||
511 | g_return_val_if_fail ( priv->url_base != NULL, NULL ); | |
512 | g_return_val_if_fail ( priv->url_start_ll_fmt != NULL, NULL ); | |
513 | g_return_val_if_fail ( priv->url_stop_ll_fmt != NULL, NULL ); | |
514 | g_return_val_if_fail ( priv->url_via_ll_fmt != NULL, NULL ); | |
515 | ||
516 | /* Init temporary storage */ | |
517 | gsize len = 1 + g_list_length ( vt->trackpoints ) + 1; /* base + trackpoints + NULL */ | |
518 | urlParts = g_malloc ( sizeof(gchar*)*len ); | |
519 | urlParts[0] = g_strdup ( priv->url_base ); | |
520 | urlParts[len-1] = NULL; | |
521 | ||
522 | struct _append_ctx ctx; | |
523 | ctx.priv = priv; | |
524 | ctx.urlParts = urlParts; | |
525 | ctx.nb = 1; /* First cell available, previous used for base URL */ | |
526 | ||
527 | /* Append all trackpoints to URL */ | |
528 | g_list_foreach ( vt->trackpoints, _append_stringified_coords, &ctx ); | |
529 | ||
530 | /* Override first and last positions with associated formats */ | |
531 | struct LatLon position; | |
532 | VikTrackpoint *vtp; | |
533 | g_free ( urlParts[1] ); | |
534 | vtp = g_list_first ( vt->trackpoints )->data; | |
535 | vik_coord_to_latlon ( &(vtp->coord ), &position ); | |
536 | urlParts[1] = substitute_latlon ( priv->url_start_ll_fmt, position ); | |
537 | g_free ( urlParts[len-2] ); | |
538 | vtp = g_list_last ( vt->trackpoints )->data; | |
539 | vik_coord_to_latlon ( &(vtp->coord), &position ); | |
540 | urlParts[len-2] = substitute_latlon ( priv->url_stop_ll_fmt, position ); | |
541 | ||
542 | /* Concat */ | |
543 | url = g_strjoinv ( NULL, urlParts ); | |
544 | g_debug ( "%s: %s", __FUNCTION__, url ); | |
545 | ||
546 | /* Free */ | |
547 | g_strfreev ( urlParts ); | |
548 | ||
549 | return url; | |
550 | } | |
551 | ||
552 | static gboolean | |
553 | vik_routing_web_engine_refine ( VikRoutingEngine *self, VikTrwLayer *vtl, VikTrack *vt ) | |
554 | { | |
555 | /* Compute URL */ | |
556 | gchar *uri = vik_routing_web_engine_get_url_for_track ( self, vt ); | |
557 | ||
558 | /* Download data */ | |
559 | DownloadMapOptions *options = vik_routing_web_engine_get_download_options ( self ); | |
560 | ||
561 | /* Convert and insert data in model */ | |
562 | gchar *format = vik_routing_engine_get_format ( self ); | |
563 | ProcessOptions po = { NULL, NULL, format, uri, NULL, NULL }; | |
564 | gboolean ret = a_babel_convert_from ( vtl, &po, NULL, NULL, options ); | |
565 | ||
566 | g_free(uri); | |
567 | ||
568 | return ret; | |
569 | } | |
570 | ||
571 | static gboolean | |
572 | vik_routing_web_engine_supports_refine ( VikRoutingEngine *self ) | |
573 | { | |
574 | g_return_val_if_fail ( VIK_IS_ROUTING_WEB_ENGINE (self), FALSE); | |
575 | ||
576 | VikRoutingWebEnginePrivate *priv = VIK_ROUTING_WEB_ENGINE_PRIVATE ( self ); | |
577 | ||
578 | return priv->url_via_ll_fmt != NULL; | |
579 | } |