Dogcows Code - chaz/openbox/blob - openbox/menu.c

   1 #include "debug.h"
   2 #include "menu.h"
   3 #include "openbox.h"
   4 #include "stacking.h"
   5 #include "client.h"
   6 #include "grab.h"
   7 #include "config.h"
   8 #include "screen.h"
   9 #include "menuframe.h"
  10 #include "geom.h"
  11 #include "misc.h"
  12 #include "client_menu.h"
  13 #include "client_list_menu.h"
  14 #include "parser/parse.h"
  15
  16 typedef struct _ObMenuParseState ObMenuParseState;
  17
  18 struct _ObMenuParseState
  19 {
  20     GSList *menus;
  21 };
  22
  23 static GHashTable *menu_hash = NULL;
  24 static ObParseInst *menu_parse_inst;
  25 static ObMenuParseState menu_parse_state;
  26
  27 static void menu_destroy_hash_value(ObMenu *self);
  28 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  29                             gpointer data);
  30 static void parse_menu_separator(ObParseInst *i,
  31                                  xmlDocPtr doc, xmlNodePtr node,
  32                                  gpointer data);
  33 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  34                        gpointer data);
  35
  36 static gboolean menu_open(gchar *file, xmlDocPtr *doc, xmlNodePtr *node)
  37 {
  38     gboolean loaded = TRUE;
  39     gchar *p;
  40
  41     p = g_build_filename(g_get_home_dir(), ".openbox", file, NULL);
  42     if (!parse_load(p, "openbox_menu", doc, node)) {
  43         g_free(p);
  44         p = g_build_filename(RCDIR, file, NULL);
  45         if (!parse_load(p, "openbox_menu", doc, node)) {
  46             g_free(p);
  47             p = g_strdup(file);
  48             if (!parse_load(p, "openbox_menu", doc, node)) {
  49                 g_warning("Failed to load menu from '%s'", file);
  50                 loaded = FALSE;
  51             }
  52         }
  53     }
  54     g_free(p);
  55     return loaded;
  56 }
  57
  58 static void client_dest(gpointer client)
  59 {
  60     /* menus can be associated with a client, so close any that are since
  61        we are disappearing now */
  62     menu_frame_hide_all_client(client);
  63 }
  64
  65 void menu_startup()
  66 {
  67     xmlDocPtr doc;
  68     xmlNodePtr node;
  69     gboolean loaded = FALSE;
  70     GSList *it;
  71
  72     menu_hash = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
  73                                       (GDestroyNotify)menu_destroy_hash_value);
  74
  75     client_list_menu_startup();
  76     client_menu_startup();
  77
  78     menu_parse_inst = parse_startup();
  79
  80     menu_parse_state.menus = NULL;
  81     parse_register(menu_parse_inst, "menu", parse_menu, &menu_parse_state);
  82     parse_register(menu_parse_inst, "item", parse_menu_item,
  83                    &menu_parse_state);
  84     parse_register(menu_parse_inst, "separator",
  85                    parse_menu_separator, &menu_parse_state);
  86
  87     for (it = config_menu_files; it; it = g_slist_next(it)) {
  88         if (menu_open(it->data, &doc, &node)) {
  89             loaded = TRUE;
  90             parse_tree(menu_parse_inst, doc, node->xmlChildrenNode);
  91             xmlFreeDoc(doc);
  92         }
  93     }
  94     if (!loaded) {
  95         if (menu_open("menu.xml", &doc, &node)) {
  96             parse_tree(menu_parse_inst, doc, node->xmlChildrenNode);
  97             xmlFreeDoc(doc);
  98         }
  99     }
 100
 101     g_assert(menu_parse_state.menus == NULL);
 102
 103     client_add_destructor(client_dest);
 104 }
 105
 106 void menu_shutdown()
 107 {
 108     client_remove_destructor(client_dest);
 109
 110     parse_shutdown(menu_parse_inst);
 111     menu_parse_inst = NULL;
 112
 113     menu_frame_hide_all();
 114     g_hash_table_destroy(menu_hash);
 115     menu_hash = NULL;
 116 }
 117
 118 void menu_pipe_execute(ObMenu *self)
 119 {
 120     xmlDocPtr doc;
 121     xmlNodePtr node;
 122     gchar *output;
 123     GError *err = NULL;
 124
 125     if (!self->execute)
 126         return;
 127
 128     if (!g_spawn_command_line_sync(self->execute, &output, NULL, NULL, &err))
 129     {
 130         g_warning("Failed to execute command for pipe-menu: %s", err->message);
 131         g_error_free(err);
 132         return;
 133     }
 134
 135     if (parse_load_mem(output, strlen(output),
 136                        "openbox_pipe_menu", &doc, &node))
 137     {
 138         menu_clear_entries(self);
 139
 140         menu_parse_state.menus = g_slist_prepend(NULL, self);
 141         parse_tree(menu_parse_inst, doc, node->xmlChildrenNode);
 142         menu_parse_state.menus = g_slist_remove(menu_parse_state.menus, self);
 143         xmlFreeDoc(doc);
 144
 145         g_assert(menu_parse_state.menus == NULL);
 146     }
 147 }
 148
 149 static ObMenu* menu_from_name(gchar *name)
 150 {
 151     ObMenu *self = NULL;
 152
 153     g_assert(name != NULL);
 154
 155     if (!(self = g_hash_table_lookup(menu_hash, name)))
 156         g_warning("Attempted to access menu '%s' but it does not exist.",
 157                   name);
 158     return self;
 159 }
 160
 161 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
 162                             gpointer data)
 163 {
 164     ObMenuParseState *state = data;
 165     gchar *label;
 166
 167     if (state->menus) {
 168         if (parse_attr_string("label", node, &label)) {
 169             GSList *acts = NULL;
 170
 171             for (node = node->xmlChildrenNode; node; node = node->next)
 172                 if (!xmlStrcasecmp(node->name, (const xmlChar*) "action"))
 173                     acts = g_slist_append(acts, action_parse(i, doc, node));
 174             menu_add_normal(state->menus->data, -1, label, acts);
 175             g_free(label);
 176         }
 177     }
 178 }
 179
 180 static void parse_menu_separator(ObParseInst *i,
 181                                  xmlDocPtr doc, xmlNodePtr node,
 182                                  gpointer data)
 183 {
 184     ObMenuParseState *state = data;
 185
 186     if (state->menus)
 187         menu_add_separator(state->menus->data, -1);
 188 }
 189
 190 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
 191                        gpointer data)
 192 {
 193     ObMenuParseState *state = data;
 194     gchar *name = NULL, *title = NULL, *script = NULL;
 195     ObMenu *menu;
 196
 197     if (!parse_attr_string("id", node, &name))
 198         goto parse_menu_fail;
 199
 200     if (!g_hash_table_lookup(menu_hash, name)) {
 201         if (!parse_attr_string("label", node, &title))
 202             goto parse_menu_fail;
 203
 204         if ((menu = menu_new(name, title, NULL))) {
 205             if (parse_attr_string("execute", node, &script)) {
 206                 menu->execute = ob_expand_tilde(script);
 207             } else {
 208                 state->menus = g_slist_prepend(state->menus, menu);
 209                 parse_tree(i, doc, node->xmlChildrenNode);
 210                 state->menus = g_slist_delete_link(state->menus, state->menus);
 211             }
 212         }
 213     }
 214
 215     if (state->menus)
 216         menu_add_submenu(state->menus->data, -1, name);
 217
 218 parse_menu_fail:
 219     g_free(name);
 220     g_free(title);
 221     g_free(script);
 222 }
 223
 224 ObMenu* menu_new(gchar *name, gchar *title, gpointer data)
 225 {
 226     ObMenu *self;
 227
 228     self = g_new0(ObMenu, 1);
 229     self->name = g_strdup(name);
 230     self->title = g_strdup(title);
 231     self->data = data;
 232
 233     g_hash_table_replace(menu_hash, self->name, self);
 234
 235     return self;
 236 }
 237
 238 static void menu_destroy_hash_value(ObMenu *self)
 239 {
 240     /* XXX make sure its not visible */
 241
 242     if (self->destroy_func)
 243         self->destroy_func(self, self->data);
 244
 245     menu_clear_entries(self);
 246     g_free(self->name);
 247     g_free(self->title);
 248     g_free(self->execute);
 249 }
 250
 251 void menu_free(ObMenu *menu)
 252 {
 253     g_hash_table_remove(menu_hash, menu->name);
 254 }
 255
 256 void menu_show(gchar *name, gint x, gint y, ObClient *client)
 257 {
 258     ObMenu *self;
 259     ObMenuFrame *frame;
 260
 261     if (!(self = menu_from_name(name))) return;
 262
 263     frame = menu_frame_new(self, client);
 264     menu_frame_move(frame, x, y);
 265     menu_frame_show(frame, NULL);
 266     if (frame->entries)
 267         menu_frame_select_next(frame);
 268 }
 269
 270 static ObMenuEntry* menu_entry_new(ObMenu *menu, ObMenuEntryType type, gint id)
 271 {
 272     ObMenuEntry *self;
 273
 274     g_assert(menu);
 275
 276     self = g_new0(ObMenuEntry, 1);
 277     self->type = type;
 278     self->menu = menu;
 279     self->id = id;
 280
 281     switch (type) {
 282     case OB_MENU_ENTRY_TYPE_NORMAL:
 283         self->data.normal.enabled = TRUE;
 284         break;
 285     case OB_MENU_ENTRY_TYPE_SUBMENU:
 286     case OB_MENU_ENTRY_TYPE_SEPARATOR:
 287         break;
 288     }
 289
 290     return self;
 291 }
 292
 293 void menu_entry_free(ObMenuEntry *self)
 294 {
 295     if (self) {
 296         switch (self->type) {
 297         case OB_MENU_ENTRY_TYPE_NORMAL:
 298             g_free(self->data.normal.label);
 299             while (self->data.normal.actions) {
 300                 action_free(self->data.normal.actions->data);
 301                 self->data.normal.actions =
 302                     g_slist_delete_link(self->data.normal.actions,
 303                                         self->data.normal.actions);
 304             }
 305             break;
 306         case OB_MENU_ENTRY_TYPE_SUBMENU:
 307             g_free(self->data.submenu.name);
 308             break;
 309         case OB_MENU_ENTRY_TYPE_SEPARATOR:
 310             break;
 311         }
 312
 313         g_free(self);
 314     }
 315 }
 316
 317 void menu_clear_entries(ObMenu *self)
 318 {
 319     /* XXX assert that the menu isn't visible */
 320
 321     while (self->entries) {
 322         menu_entry_free(self->entries->data);
 323         self->entries = g_list_delete_link(self->entries, self->entries);
 324     }
 325 }
 326
 327 void menu_entry_remove(ObMenuEntry *self)
 328 {
 329     self->menu->entries = g_list_remove(self->menu->entries, self);
 330     menu_entry_free(self);
 331 }
 332
 333 ObMenuEntry* menu_add_normal(ObMenu *self, gint id, gchar *label,
 334                              GSList *actions)
 335 {
 336     ObMenuEntry *e;
 337
 338     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_NORMAL, id);
 339     e->data.normal.label = g_strdup(label);
 340     e->data.normal.actions = actions;
 341
 342     self->entries = g_list_append(self->entries, e);
 343     return e;
 344 }
 345
 346 ObMenuEntry* menu_add_submenu(ObMenu *self, gint id, gchar *submenu)
 347 {
 348     ObMenuEntry *e;
 349
 350     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SUBMENU, id);
 351     e->data.submenu.name = g_strdup(submenu);
 352
 353     self->entries = g_list_append(self->entries, e);
 354     return e;
 355 }
 356
 357 ObMenuEntry* menu_add_separator(ObMenu *self, gint id)
 358 {
 359     ObMenuEntry *e;
 360
 361     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SEPARATOR, id);
 362
 363     self->entries = g_list_append(self->entries, e);
 364     return e;
 365 }
 366
 367 void menu_set_update_func(ObMenu *self, ObMenuUpdateFunc func)
 368 {
 369     self->update_func = func;
 370 }
 371
 372 void menu_set_execute_func(ObMenu *self, ObMenuExecuteFunc func)
 373 {
 374     self->execute_func = func;
 375 }
 376
 377 void menu_set_destroy_func(ObMenu *self, ObMenuDestroyFunc func)
 378 {
 379     self->destroy_func = func;
 380 }
 381
 382 ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id)
 383 {
 384     ObMenuEntry *ret = NULL;
 385     GList *it;
 386
 387     for (it = self->entries; it; it = g_list_next(it)) {
 388         ObMenuEntry *e = it->data;
 389
 390         if (e->id == id) {
 391             ret = e;
 392             break;
 393         }
 394     }
 395     return ret;
 396 }
 397
 398 void menu_find_submenus(ObMenu *self)
 399 {
 400     GList *it;
 401
 402     for (it = self->entries; it; it = g_list_next(it)) {
 403         ObMenuEntry *e = it->data;
 404
 405         if (e->type == OB_MENU_ENTRY_TYPE_SUBMENU)
 406             e->data.submenu.submenu = menu_from_name(e->data.submenu.name);
 407     }
 408 }