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