Pileus Git - aweather/blob - src/plugins/alert.c

   1 /*
   2  * Copyright (C) 2010-2011 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18
  19 #include <sys/time.h>
  20 #include <grits.h>
  21 #include <GL/gl.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 #include "alert.h"
  26 #include "alert-info.h"
  27
  28 #define MSG_INDEX "http://alerts.weather.gov/cap/us.php?x=0"
  29
  30 /* Format for single cap alert:
  31  *   "http://alerts.weather.gov/cap/wwacapget.php?x="
  32  *   "AK20111012000500CoastalFloodWarning20111012151500"
  33  *   "AKAFGCFWAFG.6258a84eb1e8c34cd888057248224d10" */
  34
  35 /************
  36  * AlertMsg *
  37  ************/
  38 /* AlertMsg data types */
  39 typedef struct {
  40         char sep0;
  41         char class [1 ]; char sep1;
  42         char action[3 ]; char sep2;
  43         char office[4 ]; char sep3;
  44         char phenom[2 ]; char sep4;
  45         char signif[1 ]; char sep5;
  46         char event [4 ]; char sep6;
  47         char begin [12]; char sep7;
  48         char end   [12]; char sep8;
  49 } AlertVtec;
  50
  51 typedef struct {
  52         /* Basic info (from alert index) */
  53         char *title;   // Winter Weather Advisory issued December 19 at 8:51PM
  54         char *link;    // http://www.weather.gov/alerts-beta/wwacapget.php?x=AK20101219205100AFGWinterWeatherAdvisoryAFG20101220030000AK
  55         char *summary; // ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6
  56         struct {
  57                 time_t     effective; // 2010-12-19T20:51:00-09:00
  58                 time_t     expires;   // 2010-12-20T03:00:00-09:00
  59                 char      *status;    // Actual
  60                 char      *urgency;   // Expected
  61                 char      *severity;  // Minor
  62                 char      *certainty; // Likely
  63                 char      *area_desc; // Northeastern Brooks Range; Northwestern Brooks Range
  64                 char      *fips6;     // 006015 006023 006045 006105
  65                 AlertVtec *vtec;      // /X.CON.PAFG.WW.Y.0064.000000T0000Z-101220T0300Z/
  66         } cap;
  67
  68         /* Advanced info (from CAP file) */
  69         char *description;
  70         char *instruction;
  71         char *polygon;
  72
  73         /* Internal state */
  74         AlertInfo *info;         // Link to info structure for this alert
  75         GritsPoly *county_based; // Polygon for county-based warning
  76         GritsPoly *storm_based;  // Polygon for storm-based warning
  77 } AlertMsg;
  78
  79 /* AlertMsg parsing */
  80 typedef struct {
  81         time_t    updated;
  82         AlertMsg *msg;
  83         GList    *msgs;
  84         gchar    *text;
  85         gchar    *value_name;
  86 } ParseData;
  87 time_t msg_parse_time(gchar *iso8601)
  88 {
  89         GTimeVal tv = {};
  90         g_time_val_from_iso8601(iso8601, &tv);
  91         return tv.tv_sec;
  92 }
  93 AlertVtec *msg_parse_vtec(char *buf)
  94 {
  95         AlertVtec *vtec = g_new0(AlertVtec, 1);
  96         strncpy((char*)vtec, buf, sizeof(AlertVtec));
  97         vtec->sep0 = vtec->sep1 = vtec->sep2 = '\0';
  98         vtec->sep3 = vtec->sep4 = vtec->sep5 = '\0';
  99         vtec->sep6 = vtec->sep7 = vtec->sep8 = '\0';
 100         return vtec;
 101 }
 102 void msg_parse_text(GMarkupParseContext *context, const gchar *text,
 103                 gsize len, gpointer user_data, GError **error)
 104 {
 105         //g_debug("text %s", text);
 106         ParseData *data = user_data;
 107         if (data->text)
 108                 g_free(data->text);
 109         data->text = g_strndup(text, len);
 110 }
 111 void msg_parse_index_start(GMarkupParseContext *context, const gchar *name,
 112                 const gchar **keys, const gchar **vals,
 113                 gpointer user_data, GError **error)
 114 {
 115         //g_debug("start %s", name);
 116         ParseData *data = user_data;
 117         if (g_str_equal(name, "entry"))
 118                 data->msg  = g_new0(AlertMsg, 1);
 119 }
 120 void msg_parse_index_end(GMarkupParseContext *context, const gchar *name,
 121                 gpointer user_data, GError **error)
 122 {
 123         //g_debug("end %s", name);
 124         ParseData *data = user_data;
 125         AlertMsg  *msg  = data->msg;
 126         char      *text = data->text;
 127
 128         if (g_str_equal(name, "updated") && text && !data->updated)
 129                 data->updated = msg_parse_time(text);
 130
 131         if (g_str_equal(name, "entry"))
 132                 data->msgs = g_list_prepend(data->msgs, data->msg);
 133
 134         if (!text || !msg) return;
 135         else if (g_str_equal(name, "title"))         msg->title         = g_strdup(text);
 136         else if (g_str_equal(name, "id"))            msg->link          = g_strdup(text); // hack
 137         else if (g_str_equal(name, "summary"))       msg->summary       = g_strdup(text);
 138         else if (g_str_equal(name, "cap:effective")) msg->cap.effective = msg_parse_time(text);
 139         else if (g_str_equal(name, "cap:expires"))   msg->cap.expires   = msg_parse_time(text);
 140         else if (g_str_equal(name, "cap:status"))    msg->cap.status    = g_strdup(text);
 141         else if (g_str_equal(name, "cap:urgency"))   msg->cap.urgency   = g_strdup(text);
 142         else if (g_str_equal(name, "cap:severity"))  msg->cap.severity  = g_strdup(text);
 143         else if (g_str_equal(name, "cap:certainty")) msg->cap.certainty = g_strdup(text);
 144         else if (g_str_equal(name, "cap:areaDesc"))  msg->cap.area_desc = g_strdup(text);
 145
 146         if (g_str_equal(name, "title"))
 147                 msg->info = alert_info_find(msg->title);
 148
 149         if (g_str_equal(name, "valueName")) {
 150                 if (data->value_name)
 151                         g_free(data->value_name);
 152                 data->value_name = g_strdup(text);
 153         }
 154
 155         if (g_str_equal(name, "value") && data->value_name) {
 156                 if (g_str_equal(data->value_name, "FIPS6")) msg->cap.fips6 = g_strdup(text);
 157                 if (g_str_equal(data->value_name, "VTEC"))  msg->cap.vtec  = msg_parse_vtec(text);
 158         }
 159 }
 160 void msg_parse_cap_end(GMarkupParseContext *context, const gchar *name,
 161                 gpointer user_data, GError **error)
 162 {
 163         ParseData *data = user_data;
 164         AlertMsg  *msg  = data->msg;
 165         char      *text = data->text;
 166         if (!text || !msg) return;
 167         if      (g_str_equal(name, "description")) msg->description = g_strdup(text);
 168         else if (g_str_equal(name, "instruction")) msg->instruction = g_strdup(text);
 169         else if (g_str_equal(name, "polygon"))     msg->polygon     = g_strdup(text);
 170 }
 171
 172 /* AlertMsg methods */
 173 GList *msg_parse_index(gchar *text, gsize len, time_t *updated)
 174 {
 175         g_debug("GritsPluginAlert: msg_parse");
 176         GMarkupParser parser = {
 177                 .start_element = msg_parse_index_start,
 178                 .end_element   = msg_parse_index_end,
 179                 .text          = msg_parse_text,
 180         };
 181         ParseData data = {};
 182         GMarkupParseContext *context =
 183                 g_markup_parse_context_new(&parser, 0, &data, NULL);
 184         g_markup_parse_context_parse(context, text, len, NULL);
 185         g_markup_parse_context_free(context);
 186         if (data.text)
 187                 g_free(data.text);
 188         if (data.value_name)
 189                 g_free(data.value_name);
 190         *updated = data.updated;
 191         return data.msgs;
 192 }
 193
 194 void msg_parse_cap(AlertMsg *msg, gchar *text, gsize len)
 195 {
 196         g_debug("GritsPluginAlert: msg_parse_cap");
 197         GMarkupParser parser = {
 198                 .end_element   = msg_parse_cap_end,
 199                 .text          = msg_parse_text,
 200         };
 201         ParseData data = { .msg = msg };
 202         GMarkupParseContext *context =
 203                 g_markup_parse_context_new(&parser, 0, &data, NULL);
 204         g_markup_parse_context_parse(context, text, len, NULL);
 205         g_markup_parse_context_free(context);
 206         if (data.text)
 207                 g_free(data.text);
 208
 209         /* Add spaces to description... */
 210         static GRegex *regex = NULL;
 211         if (regex == NULL)
 212                 regex = g_regex_new("\\.\\n", 0, G_REGEX_MATCH_NEWLINE_ANY, NULL);
 213         if (msg->description && regex) {
 214                 char *old = msg->description;
 215                 msg->description = g_regex_replace_literal(
 216                                 regex, old, -1, 0, ".\n\n", 0, NULL);
 217                 g_free(old);
 218         }
 219 }
 220
 221 void msg_free(AlertMsg *msg)
 222 {
 223         g_free(msg->title);
 224         g_free(msg->link);
 225         g_free(msg->summary);
 226         g_free(msg->cap.status);
 227         g_free(msg->cap.urgency);
 228         g_free(msg->cap.severity);
 229         g_free(msg->cap.certainty);
 230         g_free(msg->cap.area_desc);
 231         g_free(msg->cap.fips6);
 232         g_free(msg->cap.vtec);
 233         g_free(msg->description);
 234         g_free(msg->instruction);
 235         g_free(msg->polygon);
 236         g_free(msg);
 237 }
 238
 239 void msg_print(GList *msgs)
 240 {
 241         g_message("msg_print");
 242         for (GList *cur = msgs; cur; cur = cur->next) {
 243                 AlertMsg *msg = cur->data;
 244                 g_message("alert:");
 245                 g_message("     title         = %s",  msg->title        );
 246                 g_message("     link          = %s",  msg->link         );
 247                 g_message("     summary       = %s",  msg->summary      );
 248                 g_message("     cat.effective = %lu", msg->cap.effective);
 249                 g_message("     cat.expires   = %lu", msg->cap.expires  );
 250                 g_message("     cat.status    = %s",  msg->cap.status   );
 251                 g_message("     cat.urgency   = %s",  msg->cap.urgency  );
 252                 g_message("     cat.severity  = %s",  msg->cap.severity );
 253                 g_message("     cat.certainty = %s",  msg->cap.certainty);
 254                 g_message("     cat.area_desc = %s",  msg->cap.area_desc);
 255                 g_message("     cat.fips6     = %s",  msg->cap.fips6    );
 256                 g_message("     cat.vtec      = %p",  msg->cap.vtec     );
 257         }
 258 }
 259
 260 gchar *msg_find_nearest(GritsHttp *http, time_t when, gboolean offline)
 261 {
 262         GList *files = grits_http_available(http,
 263                         "^[0-9]*.xml$", "index", NULL, NULL);
 264
 265         time_t  this_time    = 0;
 266         time_t  nearest_time = offline ? 0 : time(NULL);
 267         char   *nearest_file = NULL;
 268
 269         for (GList *cur = files; cur; cur = cur->next) {
 270                 gchar *file = cur->data;
 271                 sscanf(file, "%ld", &this_time);
 272                 if (ABS(when - this_time) <
 273                     ABS(when - nearest_time)) {
 274                         nearest_file = file;
 275                         nearest_time = this_time;
 276                 }
 277         }
 278
 279         if (nearest_file)
 280                 return g_strconcat("index/", nearest_file, NULL);
 281         else if (!offline)
 282                 return g_strdup_printf("index/%ld.xml", time(NULL));
 283         else
 284                 return NULL;
 285 }
 286
 287 GList *msg_load_index(GritsHttp *http, time_t when, time_t *updated, gboolean offline)
 288 {
 289         /* Fetch current alerts */
 290         gchar *tmp = msg_find_nearest(http, when, offline);
 291         if (!tmp)
 292                 return NULL;
 293         gchar *file = grits_http_fetch(http, MSG_INDEX, tmp, GRITS_ONCE, NULL, NULL);
 294         g_free(tmp);
 295         if (!file)
 296                 return NULL;
 297
 298         /* Load file */
 299         gchar *text; gsize len;
 300         g_file_get_contents(file, &text, &len, NULL);
 301         GList *msgs = msg_parse_index(text, len, updated);
 302         //msg_print(msgs);
 303         g_free(file);
 304         g_free(text);
 305
 306         /* Delete unrecognized messages */
 307         GList *dead = NULL;
 308         for (GList *cur = msgs; cur; cur = cur->next)
 309                 if (!((AlertMsg*)cur->data)->info)
 310                         dead = g_list_prepend(dead, cur->data);
 311         for (GList *cur = dead; cur; cur = cur->next) {
 312                 AlertMsg *msg = cur->data;
 313                 g_warning("GritsPluginAlert: unknown msg type - %s", msg->title);
 314                 msgs = g_list_remove(msgs, msg);
 315                 msg_free(msg);
 316         }
 317         g_list_free(dead);
 318
 319         return msgs;
 320 }
 321
 322 void msg_load_cap(GritsHttp *http, AlertMsg *msg)
 323 {
 324         if (msg->description || msg->instruction || msg->polygon)
 325                 return;
 326         g_debug("GritsPlguinAlert: update_cap");
 327
 328         /* Download */
 329         gchar *id = strrchr(msg->link, '=');
 330         if (!id) return; id++;
 331         gchar *dir  = g_strdelimit(g_strdup(msg->info->abbr), " ", '_');
 332         gchar *tmp  = g_strdup_printf("%s/%s.xml", dir, id);
 333         gchar *file = grits_http_fetch(http, msg->link, tmp, GRITS_ONCE, NULL, NULL);
 334         g_free(tmp);
 335         g_free(dir);
 336         if (!file)
 337                 return;
 338
 339         /* Parse */
 340         gchar *text; gsize len;
 341         g_file_get_contents(file, &text, &len, NULL);
 342         msg_parse_cap(msg, text, len);
 343         g_free(file);
 344         g_free(text);
 345 }
 346
 347
 348 /********
 349  * FIPS *
 350  ********/
 351 int fips_compare(int a, int b)
 352 {
 353         return (a <  b) ? -1 :
 354                (a == b) ?  0 : 1;
 355 }
 356
 357 GritsPoly *fips_combine(GList *polys)
 358 {
 359         /* Create points list */
 360         GPtrArray *array = g_ptr_array_new();
 361         for (GList *cur = polys; cur; cur = cur->next) {
 362                 GritsPoly *poly       = cur->data;
 363                 gdouble (**points)[3] = poly->points;
 364                 for (int i = 0; points[i]; i++)
 365                         g_ptr_array_add(array, points[i]);
 366         }
 367         g_ptr_array_add(array, NULL);
 368         gdouble (**points)[3] = (gpointer)g_ptr_array_free(array, FALSE);
 369
 370         /* Calculate center */
 371         GritsBounds bounds = {-90, 90, -180, 180};
 372         for (GList *cur = polys; cur; cur = cur->next) {
 373                 GritsObject *poly = cur->data;
 374                 gdouble lat = poly->center.lat;
 375                 gdouble lon = poly->center.lon;
 376                 if (lat > bounds.n) bounds.n = lat;
 377                 if (lat < bounds.s) bounds.s = lat;
 378                 if (lon > bounds.e) bounds.e = lon;
 379                 if (lon < bounds.w) bounds.w = lon;
 380         }
 381         GritsPoint center = {
 382                 .lat = (bounds.n + bounds.s)/2,
 383                 .lon = lon_avg(bounds.e, bounds.w),
 384         };
 385
 386         /* Create polygon */
 387         GritsPoly *poly = grits_poly_new(points);
 388         GRITS_OBJECT(poly)->skip  |= GRITS_SKIP_CENTER;
 389         GRITS_OBJECT(poly)->skip  |= GRITS_SKIP_STATE;
 390         GRITS_OBJECT(poly)->center = center;
 391         g_object_weak_ref(G_OBJECT(poly), (GWeakNotify)g_free, points);
 392         return poly;
 393 }
 394
 395 gboolean fips_group_state(gpointer key, gpointer value, gpointer data)
 396 {
 397         GList  *counties = value;
 398         GList **states   = data;
 399         GritsPoly *poly  = fips_combine(counties);
 400         GRITS_OBJECT(poly)->lod = EARTH_R/10;
 401         *states = g_list_prepend(*states, poly);
 402         g_list_free(counties);
 403         return FALSE;
 404 }
 405
 406 void fips_parse(gchar *text, GTree **_counties, GList **_states)
 407 {
 408         g_debug("GritsPluginAlert: fips_parse");
 409         GTree *counties = g_tree_new((GCompareFunc)fips_compare);
 410         GTree *states   = g_tree_new_full((GCompareDataFunc)g_strcmp0,
 411                         NULL, g_free, NULL);
 412         gchar **lines = g_strsplit(text, "\n", -1);
 413         for (gint li = 0; lines[li]; li++) {
 414                 /* Split line */
 415                 gchar **sparts = g_strsplit(lines[li], "\t", 4);
 416                 int     nparts = g_strv_length(sparts);
 417                 if (nparts < 4) {
 418                         g_strfreev(sparts);
 419                         continue;
 420                 }
 421
 422                 /* Create GritsPoly */
 423                 GritsPoly *poly = grits_poly_parse(sparts[3], "\t", " ", ",");
 424
 425                 /* Insert polys into the tree */
 426                 gint id = g_ascii_strtoll(sparts[0], NULL, 10);
 427                 g_tree_insert(counties, (gpointer)id, poly);
 428
 429                 /* Insert into states list */
 430                 GList *list = g_tree_lookup(states, sparts[2]);
 431                 list = g_list_prepend(list, poly);
 432                 g_tree_replace(states, g_strdup(sparts[2]), list);
 433
 434                 g_strfreev(sparts);
 435         }
 436         g_strfreev(lines);
 437
 438         /* Group state counties */
 439         *_counties = counties;
 440         *_states   = NULL;
 441         g_tree_foreach(states, (GTraverseFunc)fips_group_state, _states);
 442         g_tree_destroy(states);
 443 }
 444
 445 /********************
 446  * GritsPluginAlert *
 447  ********************/
 448 static GtkWidget *_make_msg_details(AlertMsg *msg)
 449 {
 450
 451         GtkWidget *title     = gtk_label_new("");
 452         gchar     *title_str = g_markup_printf_escaped(
 453                         "<big><b>%s</b></big>", msg->title);
 454         gtk_label_set_use_markup(GTK_LABEL(title), TRUE);
 455         gtk_label_set_markup(GTK_LABEL(title), title_str);
 456         gtk_label_set_line_wrap(GTK_LABEL(title), TRUE);
 457         gtk_misc_set_alignment(GTK_MISC(title), 0, 0);
 458         gtk_widget_set_size_request(GTK_WIDGET(title), 500, -1);
 459         g_free(title_str);
 460
 461         GtkWidget     *alert      = gtk_scrolled_window_new(NULL, NULL);
 462         GtkWidget     *alert_view = gtk_text_view_new();
 463         GtkTextBuffer *alert_buf  = gtk_text_buffer_new(NULL);
 464         gchar         *alert_str  = g_markup_printf_escaped(
 465                         "%s\n\n%s", msg->description, msg->instruction);
 466         PangoFontDescription *alert_font = pango_font_description_from_string(
 467                         "monospace");
 468         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(alert),
 469                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 470         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(alert),
 471                         GTK_SHADOW_IN);
 472         gtk_text_buffer_set_text(alert_buf, alert_str, -1);
 473         gtk_text_view_set_buffer(GTK_TEXT_VIEW(alert_view), alert_buf);
 474         gtk_widget_modify_font(GTK_WIDGET(alert_view), alert_font);
 475         gtk_container_add(GTK_CONTAINER(alert), alert_view);
 476         g_free(alert_str);
 477
 478         GtkWidget *align = gtk_alignment_new(0, 0, 1, 1);
 479         GtkWidget *box   = gtk_vbox_new(FALSE, 10);
 480         gtk_alignment_set_padding(GTK_ALIGNMENT(align), 10, 10, 10, 10);
 481         gtk_container_add(GTK_CONTAINER(align), box);
 482         gtk_box_pack_start(GTK_BOX(box), title, FALSE, FALSE, 0);
 483         gtk_box_pack_start(GTK_BOX(box), alert, TRUE,  TRUE,  0);
 484
 485         return align;
 486 }
 487
 488 static GtkWidget *_find_details(GtkNotebook *notebook, AlertMsg *msg)
 489 {
 490         int pages = gtk_notebook_get_n_pages(GTK_NOTEBOOK(notebook));
 491         for (int i = 0; i < pages; i++) {
 492                 GtkWidget *page = gtk_notebook_get_nth_page(GTK_NOTEBOOK(notebook), i);
 493                 if (msg == g_object_get_data(G_OBJECT(page), "msg"))
 494                         return page;
 495         }
 496         return NULL;
 497 }
 498
 499 static void _show_details(GritsPoly *county, GritsPluginAlert *alert)
 500 {
 501         /* Add details for this messages */
 502         AlertMsg *msg = g_object_get_data(G_OBJECT(county), "msg");
 503         msg_load_cap(alert->http, msg);
 504
 505         GtkWidget *dialog   = alert->details;
 506         GtkWidget *content  = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 507         GList     *list     = gtk_container_get_children(GTK_CONTAINER(content));
 508         GtkWidget *notebook = list->data;
 509         GtkWidget *details  = _find_details(GTK_NOTEBOOK(notebook), msg);
 510         g_list_free(list);
 511
 512         if (details == NULL) {
 513                 details          = _make_msg_details(msg);
 514                 GtkWidget *label = gtk_label_new(msg->info->abbr);
 515                 g_object_set_data(G_OBJECT(details), "msg", msg);
 516                 gtk_notebook_append_page(GTK_NOTEBOOK(notebook), details, label);
 517         }
 518
 519         gtk_widget_show_all(dialog);
 520         gint num = gtk_notebook_page_num(GTK_NOTEBOOK(notebook), details);
 521         gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), num);
 522 }
 523
 524 /* Update counties */
 525 static void _alert_leave(GritsPoly *county, GritsPluginAlert *alert)
 526 {
 527         g_debug("_alert_leave");
 528         if (county->width == 3) {
 529                 county->color[3]  = 0;
 530         } else {
 531                 county->border[3] = 0.25;
 532                 county->width     = 1;
 533         }
 534         grits_object_queue_draw(GRITS_OBJECT(county));
 535 }
 536
 537 static void _alert_enter(GritsPoly *county, GritsPluginAlert *alert)
 538 {
 539         g_debug("_alert_enter");
 540         if (county->width == 3) {
 541                 county->color[3]  = 0.25;
 542         } else {
 543                 county->border[3] = 1.0;
 544                 county->width     = 2;
 545         }
 546         grits_object_queue_draw(GRITS_OBJECT(county));
 547 }
 548
 549 /* Update polygons */
 550 static void _load_common(GritsPluginAlert *alert, AlertMsg *msg, GritsPoly *poly,
 551                 float color, float border, int width)
 552 {
 553         g_object_set_data(G_OBJECT(poly), "msg", msg);
 554         poly->color[0]  = poly->border[0] = (float)msg->info->color[0] / 256;
 555         poly->color[1]  = poly->border[1] = (float)msg->info->color[1] / 256;
 556         poly->color[2]  = poly->border[2] = (float)msg->info->color[2] / 256;
 557         poly->color[3]  = color;
 558         poly->border[3] = border;
 559         poly->width     = width;
 560         GRITS_OBJECT(poly)->lod    = 0;
 561         GRITS_OBJECT(poly)->hidden = msg->info->hidden;
 562         g_signal_connect(poly, "enter",   G_CALLBACK(_alert_enter),  alert);
 563         g_signal_connect(poly, "leave",   G_CALLBACK(_alert_leave),  alert);
 564         g_signal_connect(poly, "clicked", G_CALLBACK(_show_details), alert);
 565 }
 566
 567 static GritsPoly *_load_storm_based(GritsPluginAlert *alert, AlertMsg *msg)
 568 {
 569         if (!msg->info->ispoly)
 570                 return NULL;
 571
 572         msg_load_cap(alert->http, msg);
 573
 574         GritsPoly *poly = grits_poly_parse(msg->polygon, "\t", " ", ",");
 575         _load_common(alert, msg, poly, 0, 1, 3);
 576         grits_viewer_add(alert->viewer, GRITS_OBJECT(poly), GRITS_LEVEL_WORLD+2, TRUE);
 577
 578         return poly;
 579 }
 580
 581 static GritsPoly *_load_county_based(GritsPluginAlert *alert, AlertMsg *msg)
 582 {
 583         /* Locate counties in the path of the storm */
 584         gchar **fipses  = g_strsplit(msg->cap.fips6, " ", -1);
 585         GList *counties = NULL;
 586         for (int i = 0; fipses[i]; i++) {
 587                 gint fips = g_ascii_strtoll(fipses[i], NULL, 10);
 588                 GritsPoly *county = g_tree_lookup(alert->counties, (gpointer)fips);
 589                 if (!county)
 590                         continue;
 591                 counties = g_list_prepend(counties, county);
 592         }
 593         g_strfreev(fipses);
 594
 595         /* No county based warning.. */
 596         if (!counties)
 597                 return NULL;
 598
 599         /* Create new county based warning */
 600         GritsPoly *poly = fips_combine(counties);
 601         _load_common(alert, msg, poly, 0.25, 0.25, 0);
 602         grits_viewer_add(alert->viewer, GRITS_OBJECT(poly), GRITS_LEVEL_WORLD+1, FALSE);
 603
 604         g_list_free(counties);
 605         return poly;
 606 }
 607
 608 /* Update buttons */
 609 static void _button_click(GtkToggleButton *button, gpointer _alert)
 610 {
 611         g_debug("GritsPluginAlert: _button_click");
 612         GritsPluginAlert *alert = _alert;
 613         AlertInfo *info = g_object_get_data(G_OBJECT(button), "info");
 614         info->hidden = !gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
 615
 616         /* Show/hide each polygons */
 617         for (GList *cur = alert->msgs; cur; cur = cur->next) {
 618                 AlertMsg *msg = cur->data;
 619                 if (msg->info != info)
 620                         continue;
 621                 if (msg->county_based) GRITS_OBJECT(msg->county_based)->hidden = info->hidden;
 622                 if (msg->storm_based)  GRITS_OBJECT(msg->storm_based)->hidden  = info->hidden;
 623         }
 624         gtk_widget_queue_draw(GTK_WIDGET(alert->viewer));
 625 }
 626
 627 static GtkWidget *_button_new(AlertInfo *info)
 628 {
 629         g_debug("GritsPluginAlert: _button_new - %s", info->title);
 630         GdkColor black = {0, 0, 0, 0};
 631         GdkColor color = {0, info->color[0]<<8, info->color[1]<<8, info->color[2]<<8};
 632
 633         gchar text[64];
 634         g_snprintf(text, sizeof(text), "<b>%.10s</b>", info->abbr);
 635
 636         GtkWidget *button = gtk_toggle_button_new();
 637         GtkWidget *align  = gtk_alignment_new(0.5, 0.5, 1, 1);
 638         GtkWidget *cbox   = gtk_event_box_new();
 639         GtkWidget *label  = gtk_label_new(text);
 640         for (int state = 0; state < GTK_STATE_INSENSITIVE; state++) {
 641                 gtk_widget_modify_fg(label, state, &black);
 642                 gtk_widget_modify_bg(cbox,  state, &color);
 643         } /* Yuck.. */
 644         g_object_set_data(G_OBJECT(button), "info", info);
 645         gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
 646         gtk_alignment_set_padding(GTK_ALIGNMENT(align), 2, 2, 4, 4);
 647         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), !info->hidden);
 648         gtk_widget_set_tooltip_text(GTK_WIDGET(button), info->title);
 649         gtk_container_add(GTK_CONTAINER(cbox), label);
 650         gtk_container_add(GTK_CONTAINER(align), cbox);
 651         gtk_container_add(GTK_CONTAINER(button), align);
 652         return button;
 653 }
 654
 655 static gboolean _update_buttons(GritsPluginAlert *alert)
 656 {
 657         g_debug("GritsPluginAlert: _update_buttons");
 658         GtkWidget *alerts  = g_object_get_data(G_OBJECT(alert->config), "alerts");
 659         GtkWidget *updated = g_object_get_data(G_OBJECT(alert->config), "updated");
 660
 661         /* Determine which buttons to show */
 662         for (int i = 0; alert_info[i].title; i++)
 663                 alert_info[i].current = FALSE;
 664         for (GList *cur = alert->msgs; cur; cur = cur->next) {
 665                 AlertMsg *msg = cur->data;
 666                 msg->info->current = TRUE;
 667         }
 668
 669         /* Delete old buttons */
 670         GList *frames = gtk_container_get_children(GTK_CONTAINER(alerts));
 671         for (GList *frame = frames; frame; frame = frame->next) {
 672                 GtkWidget *table = gtk_bin_get_child(GTK_BIN(frame->data));
 673                 GList *btns = gtk_container_get_children(GTK_CONTAINER(table));
 674                 g_list_foreach(btns, (GFunc)gtk_widget_destroy, NULL);
 675                 g_list_free(btns);
 676         }
 677         g_list_free(frames);
 678
 679         /* Add new buttons */
 680         for (int i = 0; alert_info[i].title; i++) {
 681                 if (!alert_info[i].current)
 682                         continue;
 683
 684                 GtkWidget *table = g_object_get_data(G_OBJECT(alerts),
 685                                 alert_info[i].category);
 686                 GList *kids = gtk_container_get_children(GTK_CONTAINER(table));
 687                 gint nkids = g_list_length(kids);
 688                 guint rows, cols;
 689                 gtk_table_get_size(GTK_TABLE(table), &rows, &cols);
 690                 gint x = nkids % cols;
 691                 gint y = nkids / cols;
 692                 g_list_free(kids);
 693
 694                 GtkWidget *button = _button_new(&alert_info[i]);
 695                 gtk_table_attach(GTK_TABLE(table), button, x, x+1, y, y+1,
 696                                 GTK_FILL|GTK_EXPAND, GTK_FILL, 0, 0);
 697                 g_signal_connect(button, "clicked",
 698                                 G_CALLBACK(_button_click), alert);
 699         }
 700
 701         /* Set time widget */
 702         struct tm tm;
 703         gmtime_r(&alert->updated, &tm);
 704         gchar *date_str = g_strdup_printf(" <b><i>%04d-%02d-%02d %02d:%02d</i></b>",
 705                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
 706                         tm.tm_hour,      tm.tm_min);
 707         gtk_label_set_markup(GTK_LABEL(updated), date_str);
 708         g_free(date_str);
 709
 710         gtk_widget_show_all(GTK_WIDGET(alert->config));
 711         return FALSE;
 712 }
 713
 714 static gint _sort_warnings(gconstpointer _a, gconstpointer _b)
 715 {
 716         const AlertMsg *a=_a, *b=_b;
 717         return (a->info->prior <  b->info->prior) ? -1 :
 718                (a->info->prior == b->info->prior) ?  0 : 1;
 719 }
 720
 721 static void _update_warnings(GritsPluginAlert *alert, GList *old)
 722 {
 723         g_debug("GritsPluginAlert: _update_warnings");
 724
 725         /* Sort by priority:
 726          *   reversed here since they're added
 727          *   to the viewer in reverse order */
 728         alert->msgs = g_list_sort(alert->msgs, _sort_warnings);
 729
 730         /* Remove old messages */
 731         for (GList *cur = old; cur; cur = cur->next) {
 732                 AlertMsg *msg = cur->data;
 733                 if (msg->county_based) grits_viewer_remove(alert->viewer,
 734                                 GRITS_OBJECT(msg->county_based));
 735                 if (msg->storm_based) grits_viewer_remove(alert->viewer,
 736                                 GRITS_OBJECT(msg->storm_based));
 737         }
 738
 739         /* Add new messages */
 740         for (GList *cur = alert->msgs; cur; cur = cur->next) {
 741                 AlertMsg *msg = cur->data;
 742                 msg->county_based = _load_county_based(alert, msg);
 743                 msg->storm_based  = _load_storm_based(alert, msg);
 744         }
 745
 746         g_debug("GritsPluginAlert: _load_warnings - end");
 747 }
 748
 749 /* Callbacks */
 750 static void _update(gpointer _, gpointer _alert)
 751 {
 752         GritsPluginAlert *alert = _alert;
 753         GList *old = alert->msgs;
 754         g_debug("GritsPluginAlert: _update");
 755
 756         time_t   when    = grits_viewer_get_time(alert->viewer);
 757         gboolean offline = grits_viewer_get_offline(alert->viewer);
 758         if (!(alert->msgs = msg_load_index(alert->http, when, &alert->updated, offline)))
 759                 return;
 760
 761         g_idle_add((GSourceFunc)_update_buttons, alert);
 762         _update_warnings(alert, old);
 763
 764         g_list_foreach(old, (GFunc)msg_free, NULL);
 765         g_list_free(old);
 766
 767         gtk_widget_queue_draw(GTK_WIDGET(alert->viewer));
 768         g_debug("GritsPluginAlert: _update - end");
 769 }
 770
 771 static void _on_update(GritsPluginAlert *alert)
 772 {
 773         g_thread_pool_push(alert->threads, NULL+1, NULL);
 774 }
 775
 776 /* Init helpers */
 777 static GtkWidget *_make_config(void)
 778 {
 779         GtkWidget *config = gtk_vbox_new(FALSE, 0);
 780
 781         /* Setup tools area */
 782         GtkWidget *tools   = gtk_hbox_new(FALSE, 10);
 783         GtkWidget *updated = gtk_label_new(" Loading...");
 784         gtk_label_set_use_markup(GTK_LABEL(updated), TRUE);
 785         gtk_box_pack_start(GTK_BOX(tools), updated, FALSE, FALSE, 0);
 786         gtk_box_pack_start(GTK_BOX(config), tools, FALSE, FALSE, 0);
 787         g_object_set_data(G_OBJECT(config), "updated", updated);
 788
 789         /* Setup alerts */
 790         gchar *labels[] = {"<b>Warnings</b>", "<b>Watches</b>",
 791                            "<b>Advisories</b>", "<b>Other</b>"};
 792         gchar *keys[]   = {"warning",  "watch",   "advisory",   "other"};
 793         gint   cols[]   = {2, 2, 3, 2};
 794         GtkWidget *alerts = gtk_hbox_new(FALSE, 10);
 795         for (int i = 0; i < G_N_ELEMENTS(labels); i++) {
 796                 GtkWidget *frame = gtk_frame_new(labels[i]);
 797                 GtkWidget *table = gtk_table_new(1, cols[i], TRUE);
 798                 GtkWidget *label = gtk_frame_get_label_widget(GTK_FRAME(frame));
 799                 gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
 800                 gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_NONE);
 801                 gtk_container_add(GTK_CONTAINER(frame), table);
 802                 gtk_box_pack_start(GTK_BOX(alerts), frame, TRUE, TRUE, 0);
 803                 g_object_set_data(G_OBJECT(alerts), keys[i], table);
 804         }
 805         gtk_box_pack_start(GTK_BOX(config), alerts, TRUE, TRUE, 0);
 806         g_object_set_data(G_OBJECT(config), "alerts",  alerts);
 807
 808         return config;
 809 }
 810
 811 static gboolean _clear_details(GtkWidget *dialog)
 812 {
 813         GtkWidget *content  = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 814         GList     *list     = gtk_container_get_children(GTK_CONTAINER(content));
 815         GtkWidget *notebook = list->data;
 816         g_list_free(list);
 817         gtk_widget_hide(dialog);
 818         while (gtk_notebook_get_n_pages(GTK_NOTEBOOK(notebook)))
 819                 gtk_notebook_remove_page(GTK_NOTEBOOK(notebook), 0);
 820         return TRUE;
 821 }
 822
 823 static gboolean _set_details_uri(GtkWidget *notebook, GtkNotebookPage *_,
 824                 guint num, GtkWidget *button)
 825 {
 826         g_debug("_set_details_uri");
 827         GtkWidget *page = gtk_notebook_get_nth_page(GTK_NOTEBOOK(notebook), num);
 828         AlertMsg  *msg  = g_object_get_data(G_OBJECT(page), "msg");
 829         gtk_link_button_set_uri(GTK_LINK_BUTTON(button), msg->link);
 830         return FALSE;
 831 }
 832
 833 static GtkWidget *_make_details(GritsViewer *viewer)
 834 {
 835         GtkWidget *dialog   = gtk_dialog_new();
 836         GtkWidget *action   = gtk_dialog_get_action_area (GTK_DIALOG(dialog));
 837         GtkWidget *content  = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 838         GtkWidget *notebook = gtk_notebook_new();
 839         GtkWidget *win      = gtk_widget_get_toplevel(GTK_WIDGET(viewer));
 840         GtkWidget *link     = gtk_link_button_new_with_label("", "Full Text");
 841
 842         gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(win));
 843         gtk_window_set_title(GTK_WINDOW(dialog), "Alert Details - AWeather");
 844         gtk_window_set_default_size(GTK_WINDOW(dialog), 625, 500);
 845         gtk_notebook_set_scrollable(GTK_NOTEBOOK(notebook), TRUE);
 846         gtk_container_add(GTK_CONTAINER(content), notebook);
 847         gtk_box_pack_end(GTK_BOX(action), link, 0, 0, 0);
 848         gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE);
 849
 850         g_signal_connect(dialog,   "response",     G_CALLBACK(_clear_details),   NULL);
 851         g_signal_connect(dialog,   "delete-event", G_CALLBACK(_clear_details),   NULL);
 852         g_signal_connect(notebook, "switch-page",  G_CALLBACK(_set_details_uri), link);
 853
 854         return dialog;
 855 }
 856
 857 /* Methods */
 858 GritsPluginAlert *grits_plugin_alert_new(GritsViewer *viewer, GritsPrefs *prefs)
 859 {
 860         g_debug("GritsPluginAlert: new");
 861         GritsPluginAlert *alert = g_object_new(GRITS_TYPE_PLUGIN_ALERT, NULL);
 862         alert->details = _make_details(viewer);
 863         alert->viewer  = g_object_ref(viewer);
 864         alert->prefs   = g_object_ref(prefs);
 865
 866         alert->refresh_id      = g_signal_connect_swapped(alert->viewer, "refresh",
 867                         G_CALLBACK(_on_update), alert);
 868         alert->time_changed_id = g_signal_connect_swapped(alert->viewer, "time_changed",
 869                         G_CALLBACK(_on_update), alert);
 870
 871         for (GList *cur = alert->states; cur; cur = cur->next)
 872                 grits_viewer_add(viewer, cur->data, GRITS_LEVEL_WORLD+1, FALSE);
 873
 874         _on_update(alert);
 875         return alert;
 876 }
 877
 878 static GtkWidget *grits_plugin_alert_get_config(GritsPlugin *_alert)
 879 {
 880         GritsPluginAlert *alert = GRITS_PLUGIN_ALERT(_alert);
 881         return alert->config;
 882 }
 883
 884
 885 /* GObject code */
 886 static void grits_plugin_alert_plugin_init(GritsPluginInterface *iface);
 887 G_DEFINE_TYPE_WITH_CODE(GritsPluginAlert, grits_plugin_alert, G_TYPE_OBJECT,
 888                 G_IMPLEMENT_INTERFACE(GRITS_TYPE_PLUGIN,
 889                         grits_plugin_alert_plugin_init));
 890 static void grits_plugin_alert_plugin_init(GritsPluginInterface *iface)
 891 {
 892         g_debug("GritsPluginAlert: plugin_init");
 893         /* Add methods to the interface */
 894         iface->get_config = grits_plugin_alert_get_config;
 895 }
 896 static void grits_plugin_alert_init(GritsPluginAlert *alert)
 897 {
 898         g_debug("GritsPluginAlert: init");
 899         /* Set defaults */
 900         alert->threads = g_thread_pool_new(_update, alert, 1, TRUE, NULL);
 901         alert->config  = _make_config();
 902         alert->http    = grits_http_new(G_DIR_SEPARATOR_S
 903                         "alerts" G_DIR_SEPARATOR_S
 904                         "cap"    G_DIR_SEPARATOR_S);
 905
 906         /* Load counties */
 907         gchar *text; gsize len;
 908         const gchar *file = PKGDATADIR G_DIR_SEPARATOR_S "fips.txt";
 909         if (!g_file_get_contents(file, &text, &len, NULL))
 910                 g_error("GritsPluginAlert: init - error loading fips polygons");
 911         fips_parse(text, &alert->counties, &alert->states);
 912         g_free(text);
 913 }
 914 static void grits_plugin_alert_dispose(GObject *gobject)
 915 {
 916         g_debug("GritsPluginAlert: dispose");
 917         GritsPluginAlert *alert = GRITS_PLUGIN_ALERT(gobject);
 918         /* Drop references */
 919         if (alert->viewer) {
 920                 GritsViewer *viewer = alert->viewer;
 921                 alert->viewer       = NULL;
 922                 g_signal_handler_disconnect(viewer, alert->refresh_id);
 923                 g_signal_handler_disconnect(viewer, alert->time_changed_id);
 924                 soup_session_abort(alert->http->soup);
 925                 g_thread_pool_free(alert->threads, TRUE, TRUE);
 926                 gtk_widget_destroy(alert->details);
 927                 while (gtk_events_pending())
 928                         gtk_main_iteration();
 929                 for (GList *cur = alert->msgs; cur; cur = cur->next) {
 930                         AlertMsg *msg = cur->data;
 931                         if (msg->county_based) grits_viewer_remove(viewer,
 932                                         GRITS_OBJECT(msg->county_based));
 933                         if (msg->storm_based) grits_viewer_remove(viewer,
 934                                         GRITS_OBJECT(msg->storm_based));
 935                 }
 936                 for (GList *cur = alert->states; cur; cur = cur->next)
 937                         grits_viewer_remove(viewer, cur->data);
 938                 g_object_unref(alert->prefs);
 939                 g_object_unref(viewer);
 940         }
 941         G_OBJECT_CLASS(grits_plugin_alert_parent_class)->dispose(gobject);
 942 }
 943 static gboolean _unref_county(gpointer key, gpointer val, gpointer data)
 944 {
 945         g_object_unref(val);
 946         return FALSE;
 947 }
 948 static void grits_plugin_alert_finalize(GObject *gobject)
 949 {
 950         g_debug("GritsPluginAlert: finalize");
 951         GritsPluginAlert *alert = GRITS_PLUGIN_ALERT(gobject);
 952         g_list_foreach(alert->msgs, (GFunc)msg_free, NULL);
 953         g_list_free(alert->msgs);
 954         g_list_free(alert->states);
 955         g_tree_foreach(alert->counties, (GTraverseFunc)_unref_county, NULL);
 956         g_tree_destroy(alert->counties);
 957         grits_http_free(alert->http);
 958         G_OBJECT_CLASS(grits_plugin_alert_parent_class)->finalize(gobject);
 959 }
 960 static void grits_plugin_alert_class_init(GritsPluginAlertClass *klass)
 961 {
 962         g_debug("GritsPluginAlert: class_init");
 963         GObjectClass *gobject_class = (GObjectClass*)klass;
 964         gobject_class->dispose  = grits_plugin_alert_dispose;
 965         gobject_class->finalize = grits_plugin_alert_finalize;
 966 }