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 "plugin.h"
  12 #include "misc.h"
  13 #include "parser/parse.h"
  14
  15 GHashTable *menu_hash = NULL;
  16
  17 typedef struct _ObMenuParseState ObMenuParseState;
  18
  19 struct _ObMenuParseState
  20 {
  21     GSList *menus;
  22 };
  23
  24 static void menu_clear_entries_internal(ObMenu *self);
  25
  26 static ObMenu* menu_from_name(gchar *name)
  27 {
  28     ObMenu *self = NULL;
  29
  30     g_assert(name != NULL);
  31
  32     if (!(self = g_hash_table_lookup(menu_hash, name)))
  33         g_warning("Attempted to access menu '%s' but it does not exist.",
  34                   name);
  35     return self;
  36 }
  37
  38 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  39                             gpointer data)
  40 {
  41     ObMenuParseState *state = data;
  42     gchar *label;
  43
  44     if (state->menus) {
  45         if (parse_attr_string("label", node, &label)) {
  46             GSList *acts = NULL;
  47
  48             for (node = node->xmlChildrenNode; node; node = node->next)
  49                 if (!xmlStrcasecmp(node->name, (const xmlChar*) "action"))
  50                     acts = g_slist_append(acts, action_parse(i, doc, node));
  51             menu_add_normal(state->menus->data, 0, label, acts);
  52             g_free(label);
  53         }
  54     }
  55 }
  56
  57 static void parse_menu_separator(ObParseInst *i,
  58                                  xmlDocPtr doc, xmlNodePtr node,
  59                                  gpointer data)
  60 {
  61     ObMenuParseState *state = data;
  62
  63     if (state->menus)
  64         menu_add_separator(state->menus->data, 0);
  65 }
  66
  67 gboolean menu_open_plugin(ObParseInst *i, gchar *name, gchar *plugin)
  68 {
  69     gboolean ret = FALSE;
  70
  71     if (plugin_open(plugin, i)) {
  72         plugin_start(plugin);
  73         if (g_hash_table_lookup(menu_hash, name))
  74             ret = TRUE;
  75         else
  76             g_warning("Specified plugin '%s' did not provide the "
  77                       "menu '%s'", plugin, name);
  78     }
  79     return ret;
  80 }
  81
  82 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  83                        gpointer data)
  84 {
  85     ObMenuParseState *state = data;
  86     gchar *name = NULL, *title = NULL, *plugin = NULL;
  87
  88     if (!parse_attr_string("id", node, &name))
  89         goto parse_menu_fail;
  90
  91     if (!g_hash_table_lookup(menu_hash, name)) {
  92         if (parse_attr_string("plugin", node, &plugin)) {
  93             menu_open_plugin(i, name, plugin);
  94         } else {
  95             if (!parse_attr_string("label", node, &title))
  96                 goto parse_menu_fail;
  97
  98             if (menu_new(name, title, NULL)) {
  99                 state->menus = g_slist_prepend(state->menus, name);
 100                 parse_tree(i, doc, node->xmlChildrenNode);
 101                 state->menus = g_slist_delete_link(state->menus, state->menus);
 102             }
 103         }
 104     }
 105
 106     if (state->menus)
 107         menu_add_submenu(state->menus->data, 0, name);
 108
 109 parse_menu_fail:
 110     g_free(name);
 111     g_free(title);
 112     g_free(plugin);
 113 }
 114
 115
 116 void menu_destroy_hash_value(ObMenu *self)
 117 {
 118     /* XXX make sure its not visible */
 119
 120     if (self->destroy_func)
 121         self->destroy_func(self, self->data);
 122
 123     menu_clear_entries_internal(self);
 124     g_free(self->name);
 125     g_free(self->title);
 126 }
 127
 128 void menu_startup(ObParseInst *i)
 129 {
 130     menu_hash = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
 131                                       (GDestroyNotify)menu_destroy_hash_value);
 132 }
 133
 134 void menu_shutdown()
 135 {
 136     menu_frame_hide_all();
 137     g_hash_table_destroy(menu_hash);
 138     menu_hash = NULL;
 139 }
 140
 141 void menu_parse()
 142 {
 143     ObParseInst *i;
 144     ObMenuParseState parse_state;
 145     xmlDocPtr doc;
 146     xmlNodePtr node;
 147     gchar *p;
 148     gboolean loaded = FALSE;
 149
 150     i = parse_startup();
 151
 152     if (config_menu_path)
 153         if (!(loaded =
 154               parse_load(config_menu_path, "openbox_menu", &doc, &node)))
 155             g_warning("Failed to load menu from '%s'", config_menu_path);
 156     if (!loaded) {
 157         p = g_build_filename(g_get_home_dir(), ".openbox", "menu", NULL);
 158         if (!(loaded =
 159               parse_load(p, "openbox_menu", &doc, &node)))
 160             g_warning("Failed to load menu from '%s'", p);
 161         g_free(p);
 162     }
 163     if (!loaded) {
 164         p = g_build_filename(RCDIR, "menu", NULL);
 165         if (!(loaded =
 166               parse_load(p, "openbox_menu", &doc, &node)))
 167             g_warning("Failed to load menu from '%s'", p);
 168         g_free(p);
 169     }
 170
 171     if (loaded) {
 172         parse_state.menus = NULL;
 173
 174         parse_register(i, "menu", parse_menu, &parse_state);
 175         parse_register(i, "item", parse_menu_item, &parse_state);
 176         parse_register(i, "separator", parse_menu_separator, &parse_state);
 177         parse_tree(i, doc, node->xmlChildrenNode);
 178     }
 179
 180     parse_shutdown(i);
 181 }
 182
 183 gboolean menu_new(gchar *name, gchar *title, gpointer data)
 184 {
 185     ObMenu *self;
 186
 187     if (g_hash_table_lookup(menu_hash, name)) return FALSE;
 188
 189     self = g_new0(ObMenu, 1);
 190     self->name = g_strdup(name);
 191     self->title = g_strdup(title);
 192     self->data = data;
 193
 194     g_hash_table_insert(menu_hash, self->name, self);
 195
 196     return TRUE;
 197 }
 198
 199 void menu_free(gchar *name)
 200 {
 201     ObMenu *self;
 202
 203     if (!(self = menu_from_name(name))) return;
 204     g_hash_table_remove(menu_hash, self->name);
 205 }
 206
 207 void menu_show(gchar *name, gint x, gint y, ObClient *client)
 208 {
 209     ObMenu *self;
 210     ObMenuFrame *frame;
 211
 212     if (!(self = menu_from_name(name))) return;
 213
 214     frame = menu_frame_new(self, client);
 215     menu_frame_move(frame, x, y);
 216     menu_frame_show(frame, NULL);
 217 }
 218
 219 static ObMenuEntry* menu_entry_new(ObMenu *menu, ObMenuEntryType type, gint id)
 220 {
 221     ObMenuEntry *self;
 222
 223     g_assert(menu);
 224
 225     self = g_new0(ObMenuEntry, 1);
 226     self->type = type;
 227     self->menu = menu;
 228     self->id = id;
 229
 230     switch (type) {
 231     case OB_MENU_ENTRY_TYPE_NORMAL:
 232         self->data.normal.enabled = TRUE;
 233         break;
 234     case OB_MENU_ENTRY_TYPE_SUBMENU:
 235     case OB_MENU_ENTRY_TYPE_SEPARATOR:
 236         break;
 237     }
 238
 239     return self;
 240 }
 241
 242 static void menu_entry_free(ObMenuEntry *self)
 243 {
 244     if (self) {
 245         switch (self->type) {
 246         case OB_MENU_ENTRY_TYPE_NORMAL:
 247             g_free(self->data.normal.label);
 248             while (self->data.normal.actions) {
 249                 action_free(self->data.normal.actions->data);
 250                 self->data.normal.actions =
 251                     g_slist_delete_link(self->data.normal.actions,
 252                                         self->data.normal.actions);
 253             }
 254             break;
 255         case OB_MENU_ENTRY_TYPE_SUBMENU:
 256         case OB_MENU_ENTRY_TYPE_SEPARATOR:
 257             break;
 258         }
 259
 260         g_free(self);
 261     }
 262 }
 263
 264 void menu_clear_entries(gchar *name)
 265 {
 266     ObMenu *self;
 267
 268     if (!(self = menu_from_name(name))) return;
 269
 270     menu_clear_entries_internal(self);
 271 }
 272
 273 static void menu_clear_entries_internal(ObMenu *self)
 274 {
 275     /* XXX assert that the menu isn't visible */
 276
 277     while (self->entries) {
 278         menu_entry_free(self->entries->data);
 279         self->entries = g_list_delete_link(self->entries, self->entries);
 280     }
 281 }
 282
 283 void menu_add_normal(gchar *name, gint id, gchar *label, GSList *actions)
 284 {
 285     ObMenu *self;
 286     ObMenuEntry *e;
 287
 288     if (!(self = menu_from_name(name))) return;
 289
 290     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_NORMAL, id);
 291     e->data.normal.label = g_strdup(label);
 292     e->data.normal.actions = actions;
 293
 294     self->entries = g_list_append(self->entries, e);
 295 }
 296
 297 void menu_add_submenu(gchar *name, gint id, gchar *submenu)
 298 {
 299     ObMenu *self, *sub;
 300     ObMenuEntry *e;
 301
 302     if (!(self = menu_from_name(name))) return;
 303     if (!(sub = menu_from_name(submenu))) return;
 304
 305     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SUBMENU, id);
 306     e->data.submenu.submenu = sub;
 307
 308     self->entries = g_list_append(self->entries, e);
 309 }
 310
 311 void menu_add_separator(gchar *name, gint id)
 312 {
 313     ObMenu *self;
 314     ObMenuEntry *e;
 315
 316     if (!(self = menu_from_name(name))) return;
 317
 318     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SEPARATOR, id);
 319
 320     self->entries = g_list_append(self->entries, e);
 321 }
 322
 323 void menu_set_update_func(gchar *name, ObMenuUpdateFunc func)
 324 {
 325     ObMenu *self;
 326
 327     if (!(self = menu_from_name(name))) return;
 328     self->update_func = func;
 329 }
 330
 331 void menu_set_execute_func(gchar *name, ObMenuExecuteFunc func)
 332 {
 333     ObMenu *self;
 334
 335     if (!(self = menu_from_name(name))) return;
 336     self->execute_func = func;
 337 }
 338
 339 void menu_set_destroy_func(gchar *name, ObMenuDestroyFunc func)
 340 {
 341     ObMenu *self;
 342
 343     if (!(self = menu_from_name(name))) return;
 344     self->destroy_func = func;
 345 }
 346
 347 ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id)
 348 {
 349     ObMenuEntry *ret = NULL;
 350     GList *it;
 351
 352     for (it = self->entries; it; it = g_list_next(it)) {
 353         ObMenuEntry *e = it->data;
 354
 355         if (e->id == id) {
 356             ret = e;
 357             break;
 358         }
 359     }
 360     return ret;
 361 }