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