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     ObMenu *parent;
  21     ObMenu *pipe_creator;
  22 };
  23
  24 static GHashTable *menu_hash = NULL;
  25 static ObParseInst *menu_parse_inst;
  26 static ObMenuParseState menu_parse_state;
  27
  28 static void menu_destroy_hash_value(ObMenu *self);
  29 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  30                             gpointer data);
  31 static void parse_menu_separator(ObParseInst *i,
  32                                  xmlDocPtr doc, xmlNodePtr node,
  33                                  gpointer data);
  34 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  35                        gpointer data);
  36
  37 static gboolean menu_open(gchar *file, xmlDocPtr *doc, xmlNodePtr *node)
  38 {
  39     gboolean loaded = TRUE;
  40     gchar *p;
  41
  42     if (file[0] == '/') {
  43         if (!parse_load(file, "openbox_menu", doc, node)) {
  44             g_warning("Failed to load menu from '%s'", file);
  45             loaded = FALSE;
  46         }
  47     } else {
  48         p = g_build_filename(g_get_home_dir(), ".openbox", file, NULL);
  49         if (!parse_load(p, "openbox_menu", doc, node)) {
  50             g_free(p);
  51             p = g_build_filename(RCDIR, file, NULL);
  52             if (!parse_load(p, "openbox_menu", doc, node)) {
  53                 g_free(p);
  54                 p = g_strdup(file);
  55                 if (!parse_load(p, "openbox_menu", doc, node)) {
  56                     g_warning("Failed to load menu from '%s'", file);
  57                     loaded = FALSE;
  58                 }
  59             }
  60         }
  61         g_free(p);
  62     }
  63     return loaded;
  64 }
  65
  66 static void client_dest(gpointer client)
  67 {
  68     /* menus can be associated with a client, so close any that are since
  69        we are disappearing now */
  70     menu_frame_hide_all_client(client);
  71 }
  72
  73 void menu_startup(gboolean reconfig)
  74 {
  75     xmlDocPtr doc;
  76     xmlNodePtr node;
  77     gboolean loaded = FALSE;
  78     GSList *it;
  79
  80     menu_hash = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
  81                                       (GDestroyNotify)menu_destroy_hash_value);
  82
  83     client_list_menu_startup();
  84     client_menu_startup();
  85
  86     menu_parse_inst = parse_startup();
  87
  88     menu_parse_state.parent = NULL;
  89     menu_parse_state.pipe_creator = NULL;
  90     parse_register(menu_parse_inst, "menu", parse_menu, &menu_parse_state);
  91     parse_register(menu_parse_inst, "item", parse_menu_item,
  92                    &menu_parse_state);
  93     parse_register(menu_parse_inst, "separator",
  94                    parse_menu_separator, &menu_parse_state);
  95
  96     for (it = config_menu_files; it; it = g_slist_next(it)) {
  97         if (menu_open(it->data, &doc, &node)) {
  98             loaded = TRUE;
  99             parse_tree(menu_parse_inst, doc, node->children);
 100             xmlFreeDoc(doc);
 101         }
 102     }
 103     if (!loaded) {
 104         if (menu_open("menu.xml", &doc, &node)) {
 105             parse_tree(menu_parse_inst, doc, node->children);
 106             xmlFreeDoc(doc);
 107         }
 108     }
 109
 110     g_assert(menu_parse_state.parent == NULL);
 111
 112     if (!reconfig)
 113         client_add_destructor(client_dest);
 114 }
 115
 116 void menu_shutdown(gboolean reconfig)
 117 {
 118     if (!reconfig)
 119         client_remove_destructor(client_dest);
 120
 121     parse_shutdown(menu_parse_inst);
 122     menu_parse_inst = NULL;
 123
 124     menu_frame_hide_all();
 125     g_hash_table_destroy(menu_hash);
 126     menu_hash = NULL;
 127 }
 128
 129 static gboolean menu_pipe_submenu(gpointer key, gpointer val, gpointer data)
 130 {
 131     ObMenu *menu = val;
 132     return menu->pipe_creator == data;
 133 }
 134
 135 void menu_pipe_execute(ObMenu *self)
 136 {
 137     xmlDocPtr doc;
 138     xmlNodePtr node;
 139     gchar *output;
 140     GError *err = NULL;
 141
 142     if (!self->execute)
 143         return;
 144
 145     if (!g_spawn_command_line_sync(self->execute, &output, NULL, NULL, &err)) {
 146         g_warning("Failed to execute command for pipe-menu: %s", err->message);
 147         g_error_free(err);
 148         return;
 149     }
 150
 151     if (parse_load_mem(output, strlen(output),
 152                        "openbox_pipe_menu", &doc, &node))
 153     {
 154         g_hash_table_foreach_remove(menu_hash, menu_pipe_submenu, self);
 155         menu_clear_entries(self);
 156
 157         menu_parse_state.pipe_creator = self;
 158         menu_parse_state.parent = self;
 159         parse_tree(menu_parse_inst, doc, node->children);
 160         xmlFreeDoc(doc);
 161     } else {
 162         g_warning("Invalid output from pipe-menu: %s", self->execute);
 163     }
 164 }
 165
 166 static ObMenu* menu_from_name(gchar *name)
 167 {
 168     ObMenu *self = NULL;
 169
 170     g_assert(name != NULL);
 171
 172     if (!(self = g_hash_table_lookup(menu_hash, name)))
 173         g_warning("Attempted to access menu '%s' but it does not exist.",
 174                   name);
 175     return self;
 176 }
 177
 178 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
 179                             gpointer data)
 180 {
 181     ObMenuParseState *state = data;
 182     gchar *label;
 183
 184     if (state->parent) {
 185         if (parse_attr_string("label", node, &label)) {
 186             GSList *acts = NULL;
 187
 188             for (node = node->children; node; node = node->next)
 189                 if (!xmlStrcasecmp(node->name, (const xmlChar*) "action"))
 190                     acts = g_slist_append(acts, action_parse
 191                                           (i, doc, node,
 192                                            OB_USER_ACTION_MENU_SELECTION));
 193             menu_add_normal(state->parent, -1, label, acts);
 194             g_free(label);
 195         }
 196     }
 197 }
 198
 199 static void parse_menu_separator(ObParseInst *i,
 200                                  xmlDocPtr doc, xmlNodePtr node,
 201                                  gpointer data)
 202 {
 203     ObMenuParseState *state = data;
 204
 205     if (state->parent)
 206         menu_add_separator(state->parent, -1);
 207 }
 208
 209 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
 210                        gpointer data)
 211 {
 212     ObMenuParseState *state = data;
 213     gchar *name = NULL, *title = NULL, *script = NULL;
 214     ObMenu *menu;
 215
 216     if (!parse_attr_string("id", node, &name))
 217         goto parse_menu_fail;
 218
 219     if (!g_hash_table_lookup(menu_hash, name)) {
 220         if (!parse_attr_string("label", node, &title))
 221             goto parse_menu_fail;
 222
 223         if ((menu = menu_new(name, title, NULL))) {
 224             menu->pipe_creator = state->pipe_creator;
 225             if (parse_attr_string("execute", node, &script)) {
 226                 menu->execute = ob_expand_tilde(script);
 227             } else {
 228                 ObMenu *old;
 229
 230                 old = state->parent;
 231                 state->parent = menu;
 232                 parse_tree(i, doc, node->children);
 233                 state->parent = old;
 234             }
 235         }
 236     }
 237
 238     if (state->parent)
 239         menu_add_submenu(state->parent, -1, name);
 240
 241 parse_menu_fail:
 242     g_free(name);
 243     g_free(title);
 244     g_free(script);
 245 }
 246
 247 ObMenu* menu_new(gchar *name, gchar *title, gpointer data)
 248 {
 249     ObMenu *self;
 250
 251     self = g_new0(ObMenu, 1);
 252     self->name = g_strdup(name);
 253     self->title = g_strdup(title);
 254     self->data = data;
 255
 256     g_hash_table_replace(menu_hash, self->name, self);
 257
 258     return self;
 259 }
 260
 261 static void menu_destroy_hash_value(ObMenu *self)
 262 {
 263     /* XXX make sure its not visible */
 264
 265     if (self->destroy_func)
 266         self->destroy_func(self, self->data);
 267
 268     menu_clear_entries(self);
 269     g_free(self->name);
 270     g_free(self->title);
 271     g_free(self->execute);
 272 }
 273
 274 void menu_free(ObMenu *menu)
 275 {
 276     g_hash_table_remove(menu_hash, menu->name);
 277 }
 278
 279 void menu_show(gchar *name, gint x, gint y, ObClient *client)
 280 {
 281     ObMenu *self;
 282     ObMenuFrame *frame;
 283
 284     if (!(self = menu_from_name(name))) return;
 285
 286     frame = menu_frame_new(self, client);
 287     menu_frame_move(frame, x, y);
 288     menu_frame_show(frame, NULL);
 289     if (frame->entries)
 290         menu_frame_select_next(frame);
 291 }
 292
 293 static ObMenuEntry* menu_entry_new(ObMenu *menu, ObMenuEntryType type, gint id)
 294 {
 295     ObMenuEntry *self;
 296
 297     g_assert(menu);
 298
 299     self = g_new0(ObMenuEntry, 1);
 300     self->type = type;
 301     self->menu = menu;
 302     self->id = id;
 303
 304     switch (type) {
 305     case OB_MENU_ENTRY_TYPE_NORMAL:
 306         self->data.normal.enabled = TRUE;
 307         break;
 308     case OB_MENU_ENTRY_TYPE_SUBMENU:
 309     case OB_MENU_ENTRY_TYPE_SEPARATOR:
 310         break;
 311     }
 312
 313     return self;
 314 }
 315
 316 void menu_entry_free(ObMenuEntry *self)
 317 {
 318     if (self) {
 319         switch (self->type) {
 320         case OB_MENU_ENTRY_TYPE_NORMAL:
 321             g_free(self->data.normal.label);
 322             while (self->data.normal.actions) {
 323                 action_free(self->data.normal.actions->data);
 324                 self->data.normal.actions =
 325                     g_slist_delete_link(self->data.normal.actions,
 326                                         self->data.normal.actions);
 327             }
 328             break;
 329         case OB_MENU_ENTRY_TYPE_SUBMENU:
 330             g_free(self->data.submenu.name);
 331             break;
 332         case OB_MENU_ENTRY_TYPE_SEPARATOR:
 333             break;
 334         }
 335
 336         g_free(self);
 337     }
 338 }
 339
 340 void menu_clear_entries(ObMenu *self)
 341 {
 342     /* XXX assert that the menu isn't visible */
 343
 344     while (self->entries) {
 345         menu_entry_free(self->entries->data);
 346         self->entries = g_list_delete_link(self->entries, self->entries);
 347     }
 348 }
 349
 350 void menu_entry_remove(ObMenuEntry *self)
 351 {
 352     self->menu->entries = g_list_remove(self->menu->entries, self);
 353     menu_entry_free(self);
 354 }
 355
 356 ObMenuEntry* menu_add_normal(ObMenu *self, gint id, gchar *label,
 357                              GSList *actions)
 358 {
 359     ObMenuEntry *e;
 360
 361     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_NORMAL, id);
 362     e->data.normal.label = g_strdup(label);
 363     e->data.normal.actions = actions;
 364
 365     self->entries = g_list_append(self->entries, e);
 366     return e;
 367 }
 368
 369 ObMenuEntry* menu_add_submenu(ObMenu *self, gint id, gchar *submenu)
 370 {
 371     ObMenuEntry *e;
 372
 373     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SUBMENU, id);
 374     e->data.submenu.name = g_strdup(submenu);
 375
 376     self->entries = g_list_append(self->entries, e);
 377     return e;
 378 }
 379
 380 ObMenuEntry* menu_add_separator(ObMenu *self, gint id)
 381 {
 382     ObMenuEntry *e;
 383
 384     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SEPARATOR, id);
 385
 386     self->entries = g_list_append(self->entries, e);
 387     return e;
 388 }
 389
 390 void menu_set_update_func(ObMenu *self, ObMenuUpdateFunc func)
 391 {
 392     self->update_func = func;
 393 }
 394
 395 void menu_set_execute_func(ObMenu *self, ObMenuExecuteFunc func)
 396 {
 397     self->execute_func = func;
 398 }
 399
 400 void menu_set_destroy_func(ObMenu *self, ObMenuDestroyFunc func)
 401 {
 402     self->destroy_func = func;
 403 }
 404
 405 ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id)
 406 {
 407     ObMenuEntry *ret = NULL;
 408     GList *it;
 409
 410     for (it = self->entries; it; it = g_list_next(it)) {
 411         ObMenuEntry *e = it->data;
 412
 413         if (e->id == id) {
 414             ret = e;
 415             break;
 416         }
 417     }
 418     return ret;
 419 }
 420
 421 void menu_find_submenus(ObMenu *self)
 422 {
 423     GList *it;
 424
 425     for (it = self->entries; it; it = g_list_next(it)) {
 426         ObMenuEntry *e = it->data;
 427
 428         if (e->type == OB_MENU_ENTRY_TYPE_SUBMENU)
 429             e->data.submenu.submenu = menu_from_name(e->data.submenu.name);
 430     }
 431 }