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 static GHashTable *menu_hash = NULL;
  16
  17 ObParseInst *menu_parse_inst;
  18
  19 typedef struct _ObMenuParseState ObMenuParseState;
  20
  21 struct _ObMenuParseState
  22 {
  23     GSList *menus;
  24 };
  25
  26 static void menu_clear_entries_internal(ObMenu *self);
  27
  28 static ObMenu* menu_from_name(gchar *name)
  29 {
  30     ObMenu *self = NULL;
  31
  32     g_assert(name != NULL);
  33
  34     if (!(self = g_hash_table_lookup(menu_hash, name)))
  35         g_warning("Attempted to access menu '%s' but it does not exist.",
  36                   name);
  37     return self;
  38 }
  39
  40 static void parse_menu_item(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  41                             gpointer data)
  42 {
  43     ObMenuParseState *state = data;
  44     gchar *label;
  45
  46     if (state->menus) {
  47         if (parse_attr_string("label", node, &label)) {
  48             GSList *acts = NULL;
  49
  50             for (node = node->xmlChildrenNode; node; node = node->next)
  51                 if (!xmlStrcasecmp(node->name, (const xmlChar*) "action"))
  52                     acts = g_slist_append(acts, action_parse(i, doc, node));
  53             menu_add_normal(state->menus->data, 0, label, acts);
  54             g_free(label);
  55         }
  56     }
  57 }
  58
  59 static void parse_menu_separator(ObParseInst *i,
  60                                  xmlDocPtr doc, xmlNodePtr node,
  61                                  gpointer data)
  62 {
  63     ObMenuParseState *state = data;
  64
  65     if (state->menus)
  66         menu_add_separator(state->menus->data, 0);
  67 }
  68
  69 gboolean menu_open_plugin(ObParseInst *i, gchar *name, gchar *plugin)
  70 {
  71     gboolean ret = FALSE;
  72
  73     if (plugin_open(plugin, i)) {
  74         plugin_start(plugin);
  75         if (g_hash_table_lookup(menu_hash, name))
  76             ret = TRUE;
  77         else
  78             g_warning("Specified plugin '%s' did not provide the "
  79                       "menu '%s'", plugin, name);
  80     }
  81     return ret;
  82 }
  83
  84 static void parse_menu(ObParseInst *i, xmlDocPtr doc, xmlNodePtr node,
  85                        gpointer data)
  86 {
  87     ObMenuParseState *state = data;
  88     gchar *name = NULL, *title = NULL, *plugin = NULL;
  89
  90     if (!parse_attr_string("id", node, &name))
  91         goto parse_menu_fail;
  92
  93     if (!g_hash_table_lookup(menu_hash, name)) {
  94         if (parse_attr_string("plugin", node, &plugin)) {
  95             menu_open_plugin(i, name, plugin);
  96         } else {
  97             if (!parse_attr_string("label", node, &title))
  98                 goto parse_menu_fail;
  99
 100             if (menu_new(name, title, NULL)) {
 101                 state->menus = g_slist_prepend(state->menus, name);
 102                 parse_tree(i, doc, node->xmlChildrenNode);
 103                 state->menus = g_slist_delete_link(state->menus, state->menus);
 104             }
 105         }
 106     }
 107
 108     if (state->menus)
 109         menu_add_submenu(state->menus->data, 0, name);
 110
 111 parse_menu_fail:
 112     g_free(name);
 113     g_free(title);
 114     g_free(plugin);
 115 }
 116
 117
 118 void menu_destroy_hash_value(ObMenu *self)
 119 {
 120     /* XXX make sure its not visible */
 121
 122     if (self->destroy_func)
 123         self->destroy_func(self, self->data);
 124
 125     menu_clear_entries_internal(self);
 126     g_free(self->name);
 127     g_free(self->title);
 128 }
 129
 130 void menu_startup(ObParseInst *i)
 131 {
 132     menu_hash = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
 133                                       (GDestroyNotify)menu_destroy_hash_value);
 134     menu_parse_inst = parse_startup();
 135 }
 136
 137 void menu_shutdown()
 138 {
 139     parse_shutdown(menu_parse_inst);
 140     menu_parse_inst = NULL;
 141
 142     menu_frame_hide_all();
 143     g_hash_table_destroy(menu_hash);
 144     menu_hash = NULL;
 145 }
 146
 147 gboolean menu_open(gchar *file, xmlDocPtr *doc, xmlNodePtr *node)
 148 {
 149     gboolean loaded = TRUE;
 150     gchar *p;
 151
 152     p = g_build_filename(g_get_home_dir(), ".openbox", file, NULL);
 153     if (!parse_load(p, "openbox_menu", doc, node)) {
 154         g_free(p);
 155         p = g_build_filename(RCDIR, file, NULL);
 156         if (!parse_load(p, "openbox_menu", doc, node)) {
 157             g_free(p);
 158             p = g_strdup(file);
 159             if (!parse_load(p, "openbox_menu", doc, node)) {
 160                 g_warning("Failed to load menu from '%s'", file);
 161                 loaded = FALSE;
 162             }
 163         }
 164     }
 165     g_free(p);
 166     return loaded;
 167 }
 168
 169 void menu_parse()
 170 {
 171     ObMenuParseState parse_state;
 172     xmlDocPtr doc;
 173     xmlNodePtr node;
 174     gboolean loaded = FALSE;
 175     GSList *it;
 176
 177     for (it = config_menu_files; it; it = g_slist_next(it)) {
 178         if (menu_open(it->data, &doc, &node))
 179             loaded = TRUE;
 180
 181     }
 182     if (!loaded)
 183         loaded = menu_open("menu", &doc, &node);
 184
 185     if (loaded) {
 186         parse_state.menus = NULL;
 187
 188         parse_register(menu_parse_inst, "menu", parse_menu, &parse_state);
 189         parse_register(menu_parse_inst, "item", parse_menu_item, &parse_state);
 190         parse_register(menu_parse_inst, "separator",
 191                        parse_menu_separator, &parse_state);
 192         parse_tree(menu_parse_inst, doc, node->xmlChildrenNode);
 193     }
 194 }
 195
 196 gboolean menu_new(gchar *name, gchar *title, gpointer data)
 197 {
 198     ObMenu *self;
 199
 200     /*if (g_hash_table_lookup(menu_hash, name)) return FALSE;*/
 201
 202     self = g_new0(ObMenu, 1);
 203     self->name = g_strdup(name);
 204     self->title = g_strdup(title);
 205     self->data = data;
 206
 207     g_hash_table_replace(menu_hash, self->name, self);
 208
 209     return TRUE;
 210 }
 211
 212 void menu_free(gchar *name)
 213 {
 214     ObMenu *self;
 215
 216     if (!(self = menu_from_name(name))) return;
 217     g_hash_table_remove(menu_hash, self->name);
 218 }
 219
 220 void menu_show(gchar *name, gint x, gint y, ObClient *client)
 221 {
 222     ObMenu *self;
 223     ObMenuFrame *frame;
 224
 225     if (!(self = menu_from_name(name))) return;
 226
 227     frame = menu_frame_new(self, client);
 228     menu_frame_move(frame, x, y);
 229     menu_frame_show(frame, NULL);
 230 }
 231
 232 static ObMenuEntry* menu_entry_new(ObMenu *menu, ObMenuEntryType type, gint id)
 233 {
 234     ObMenuEntry *self;
 235
 236     g_assert(menu);
 237
 238     self = g_new0(ObMenuEntry, 1);
 239     self->type = type;
 240     self->menu = menu;
 241     self->id = id;
 242
 243     switch (type) {
 244     case OB_MENU_ENTRY_TYPE_NORMAL:
 245         self->data.normal.enabled = TRUE;
 246         break;
 247     case OB_MENU_ENTRY_TYPE_SUBMENU:
 248     case OB_MENU_ENTRY_TYPE_SEPARATOR:
 249         break;
 250     }
 251
 252     return self;
 253 }
 254
 255 static void menu_entry_free(ObMenuEntry *self)
 256 {
 257     if (self) {
 258         switch (self->type) {
 259         case OB_MENU_ENTRY_TYPE_NORMAL:
 260             g_free(self->data.normal.label);
 261             while (self->data.normal.actions) {
 262                 action_free(self->data.normal.actions->data);
 263                 self->data.normal.actions =
 264                     g_slist_delete_link(self->data.normal.actions,
 265                                         self->data.normal.actions);
 266             }
 267             break;
 268         case OB_MENU_ENTRY_TYPE_SUBMENU:
 269             g_free(self->data.submenu.name);
 270             break;
 271         case OB_MENU_ENTRY_TYPE_SEPARATOR:
 272             break;
 273         }
 274
 275         g_free(self);
 276     }
 277 }
 278
 279 void menu_clear_entries(gchar *name)
 280 {
 281     ObMenu *self;
 282
 283     if (!(self = menu_from_name(name))) return;
 284
 285     menu_clear_entries_internal(self);
 286 }
 287
 288 static void menu_clear_entries_internal(ObMenu *self)
 289 {
 290     /* XXX assert that the menu isn't visible */
 291
 292     while (self->entries) {
 293         menu_entry_free(self->entries->data);
 294         self->entries = g_list_delete_link(self->entries, self->entries);
 295     }
 296 }
 297
 298 void menu_add_normal(gchar *name, gint id, gchar *label, GSList *actions)
 299 {
 300     ObMenu *self;
 301     ObMenuEntry *e;
 302
 303     if (!(self = menu_from_name(name))) return;
 304
 305     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_NORMAL, id);
 306     e->data.normal.label = g_strdup(label);
 307     e->data.normal.actions = actions;
 308
 309     self->entries = g_list_append(self->entries, e);
 310 }
 311
 312 void menu_add_submenu(gchar *name, gint id, gchar *submenu)
 313 {
 314     ObMenu *self;
 315     ObMenuEntry *e;
 316
 317     if (!(self = menu_from_name(name))) return;
 318
 319     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SUBMENU, id);
 320     e->data.submenu.name = g_strdup(submenu);
 321
 322     self->entries = g_list_append(self->entries, e);
 323 }
 324
 325 void menu_add_separator(gchar *name, gint id)
 326 {
 327     ObMenu *self;
 328     ObMenuEntry *e;
 329
 330     if (!(self = menu_from_name(name))) return;
 331
 332     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SEPARATOR, id);
 333
 334     self->entries = g_list_append(self->entries, e);
 335 }
 336
 337 void menu_set_update_func(gchar *name, ObMenuUpdateFunc func)
 338 {
 339     ObMenu *self;
 340
 341     if (!(self = menu_from_name(name))) return;
 342     self->update_func = func;
 343 }
 344
 345 void menu_set_execute_func(gchar *name, ObMenuExecuteFunc func)
 346 {
 347     ObMenu *self;
 348
 349     if (!(self = menu_from_name(name))) return;
 350     self->execute_func = func;
 351 }
 352
 353 void menu_set_destroy_func(gchar *name, ObMenuDestroyFunc func)
 354 {
 355     ObMenu *self;
 356
 357     if (!(self = menu_from_name(name))) return;
 358     self->destroy_func = func;
 359 }
 360
 361 ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id)
 362 {
 363     ObMenuEntry *ret = NULL;
 364     GList *it;
 365
 366     for (it = self->entries; it; it = g_list_next(it)) {
 367         ObMenuEntry *e = it->data;
 368
 369         if (e->id == id) {
 370             ret = e;
 371             break;
 372         }
 373     }
 374     return ret;
 375 }
 376
 377 void menu_find_submenus(ObMenu *self)
 378 {
 379     GList *it;
 380
 381     for (it = self->entries; it; it = g_list_next(it)) {
 382         ObMenuEntry *e = it->data;
 383
 384         if (e->type == OB_MENU_ENTRY_TYPE_SUBMENU)
 385             e->data.submenu.submenu = menu_from_name(e->data.submenu.name);
 386     }
 387 }