Dogcows Code - chaz/openbox/blob - openbox/menu.c

   1 #include "menu.h"
   2 #include "openbox.h"
   3 #include "stacking.h"
   4 #include "grab.h"
   5 #include "screen.h"
   6 #include "geom.h"
   7 #include "plugin.h"
   8
   9 GHashTable *menu_hash = NULL;
  10 GSList *menu_visible = NULL;
  11
  12 #define FRAME_EVENTMASK (ButtonPressMask |ButtonMotionMask | EnterWindowMask | \
  13                          LeaveWindowMask)
  14 #define TITLE_EVENTMASK (ButtonPressMask | ButtonMotionMask)
  15 #define ENTRY_EVENTMASK (EnterWindowMask | LeaveWindowMask | \
  16                          ButtonPressMask | ButtonReleaseMask)
  17
  18 static void parse_menu(xmlDocPtr doc, xmlNodePtr node, void *data)
  19 {
  20     Action *act;
  21     xmlNodePtr nact;
  22     gchar *id = NULL, *title = NULL, *label = NULL;
  23     Menu *menu, *parent;
  24
  25     if (!parse_attr_string("id", node->parent, &id))
  26         goto parse_menu_fail;
  27     if (!parse_attr_string("label", node->parent, &title))
  28         goto parse_menu_fail;
  29
  30     g_message("menu label %s", title);
  31
  32     menu = menu_new(title, id, data ? *((Menu**)data) : NULL);
  33     if (data)
  34         *((Menu**)data) = menu;
  35
  36     while (node) {
  37         if (!xmlStrcasecmp(node->name, (const xmlChar*) "menu")) {
  38             parent = menu;
  39             parse_menu(doc, node->xmlChildrenNode, &parent);
  40             menu_add_entry(menu, menu_entry_new_submenu(parent->label,
  41                                                         parent));
  42         }
  43         else if (!xmlStrcasecmp(node->name, (const xmlChar*) "item")) {
  44             if (parse_attr_string("label", node, &label)) {
  45                 if ((nact = parse_find_node("action", node->xmlChildrenNode)))
  46                     act = action_parse(doc, nact);
  47                 else
  48                     act = NULL;
  49                 if (act)
  50                     menu_add_entry(menu, menu_entry_new(label, act));
  51                 else
  52                     menu_add_entry(menu, menu_entry_new_separator(label));
  53                 g_free(label);
  54             }
  55         }
  56         node = node->next;
  57     }
  58
  59 parse_menu_fail:
  60     g_free(id);
  61     g_free(title);
  62 }
  63
  64 void menu_control_show(Menu *self, int x, int y, Client *client);
  65
  66 void menu_destroy_hash_key(Menu *menu)
  67 {
  68     g_free(menu);
  69 }
  70
  71 void menu_destroy_hash_value(Menu *self)
  72 {
  73     GList *it;
  74
  75     for (it = self->entries; it; it = it->next)
  76         menu_entry_free(it->data);
  77     g_list_free(self->entries);
  78
  79     g_free(self->label);
  80     g_free(self->name);
  81
  82     g_hash_table_remove(window_map, &self->title);
  83     g_hash_table_remove(window_map, &self->frame);
  84     g_hash_table_remove(window_map, &self->items);
  85
  86     stacking_remove(self);
  87
  88     RrAppearanceFree(self->a_title);
  89     XDestroyWindow(ob_display, self->title);
  90     XDestroyWindow(ob_display, self->frame);
  91     XDestroyWindow(ob_display, self->items);
  92
  93     g_free(self);
  94 }
  95
  96 void menu_entry_free(MenuEntry *self)
  97 {
  98     g_free(self->label);
  99     action_free(self->action);
 100
 101     g_hash_table_remove(window_map, &self->item);
 102
 103     RrAppearanceFree(self->a_item);
 104     RrAppearanceFree(self->a_disabled);
 105     RrAppearanceFree(self->a_hilite);
 106     XDestroyWindow(ob_display, self->item);
 107
 108     g_free(self);
 109 }
 110
 111 void menu_startup()
 112 {
 113 /*
 114     Menu *m;
 115     Menu *s;
 116     Menu *t;
 117     Action *a;
 118 */
 119
 120     menu_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 121                                       (GDestroyNotify)menu_destroy_hash_key,
 122                                       (GDestroyNotify)menu_destroy_hash_value);
 123
 124     parse_register("menu", parse_menu, NULL);
 125
 126 /*
 127     m = menu_new("sex menu", "root", NULL);
 128
 129     a = action_from_string("execute");
 130     a->data.execute.path = g_strdup("xterm");
 131     menu_add_entry(m, menu_entry_new("xterm", a));
 132     a = action_from_string("restart");
 133     menu_add_entry(m, menu_entry_new("restart", a));
 134     menu_add_entry(m, menu_entry_new_separator("--"));
 135     a = action_from_string("exit");
 136     menu_add_entry(m, menu_entry_new("exit", a));
 137 */
 138
 139     /*
 140     s = menu_new("subsex menu", "submenu", m);
 141     a = action_from_string("execute");
 142     a->data.execute.path = g_strdup("xclock");
 143     menu_add_entry(s, menu_entry_new("xclock", a));
 144
 145     menu_add_entry(m, menu_entry_new_submenu("subz", s));
 146
 147     s = menu_new("empty", "chub", m);
 148     menu_add_entry(m, menu_entry_new_submenu("empty", s));
 149
 150     s = menu_new("", "s-club", m);
 151     menu_add_entry(m, menu_entry_new_submenu("empty", s));
 152
 153     s = menu_new(NULL, "h-club", m);
 154     menu_add_entry(m, menu_entry_new_submenu("empty", s));
 155
 156     s = menu_new(NULL, "g-club", m);
 157
 158     a = action_from_string("execute");
 159     a->data.execute.path = g_strdup("xterm");
 160     menu_add_entry(s, menu_entry_new("xterm", a));
 161     a = action_from_string("restart");
 162     menu_add_entry(s, menu_entry_new("restart", a));
 163     menu_add_entry(s, menu_entry_new_separator("--"));
 164     a = action_from_string("exit");
 165     menu_add_entry(s, menu_entry_new("exit", a));
 166
 167     menu_add_entry(m, menu_entry_new_submenu("long", s));
 168     */
 169 }
 170
 171 void menu_shutdown()
 172 {
 173     g_hash_table_destroy(menu_hash);
 174 }
 175
 176 static Window createWindow(Window parent, unsigned long mask,
 177                            XSetWindowAttributes *attrib)
 178 {
 179     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, 0,
 180                          RrDepth(ob_rr_inst), InputOutput,
 181                          RrVisual(ob_rr_inst), mask, attrib);
 182
 183 }
 184
 185 Menu *menu_new_full(char *label, char *name, Menu *parent,
 186                     menu_controller_show show, menu_controller_update update)
 187 {
 188     XSetWindowAttributes attrib;
 189     Menu *self;
 190
 191     self = g_new0(Menu, 1);
 192     self->obwin.type = Window_Menu;
 193     self->label = g_strdup(label);
 194     self->name = g_strdup(name);
 195     self->parent = parent;
 196     self->open_submenu = NULL;
 197
 198     self->entries = NULL;
 199     self->shown = FALSE;
 200     self->invalid = TRUE;
 201
 202     /* default controllers */
 203     self->show = show;
 204     self->hide = NULL;
 205     self->update = update;
 206     self->mouseover = NULL;
 207     self->selected = NULL;
 208
 209     self->plugin = NULL;
 210     self->plugin_data = NULL;
 211
 212     attrib.override_redirect = TRUE;
 213     attrib.event_mask = FRAME_EVENTMASK;
 214     self->frame = createWindow(ob_root,
 215                                CWOverrideRedirect|CWEventMask, &attrib);
 216     attrib.event_mask = TITLE_EVENTMASK;
 217     self->title = createWindow(self->frame, CWEventMask, &attrib);
 218     self->items = createWindow(self->frame, 0, &attrib);
 219
 220     self->a_title = self->a_items = NULL;
 221
 222     XMapWindow(ob_display, self->title);
 223     XMapWindow(ob_display, self->items);
 224
 225     g_hash_table_insert(window_map, &self->frame, self);
 226     g_hash_table_insert(window_map, &self->title, self);
 227     g_hash_table_insert(window_map, &self->items, self);
 228     g_hash_table_insert(menu_hash, g_strdup(name), self);
 229
 230     stacking_add(MENU_AS_WINDOW(self));
 231     stacking_raise(MENU_AS_WINDOW(self));
 232
 233     return self;
 234 }
 235
 236 void menu_free(char *name)
 237 {
 238     g_hash_table_remove(menu_hash, name);
 239 }
 240
 241 MenuEntry *menu_entry_new_full(char *label, Action *action,
 242                                MenuEntryRenderType render_type,
 243                                gpointer submenu)
 244 {
 245     MenuEntry *menu_entry = g_new0(MenuEntry, 1);
 246
 247     menu_entry->label = g_strdup(label);
 248     menu_entry->render_type = render_type;
 249     menu_entry->action = action;
 250
 251     menu_entry->hilite = FALSE;
 252     menu_entry->enabled = TRUE;
 253
 254     menu_entry->submenu = submenu;
 255
 256     return menu_entry;
 257 }
 258
 259 void menu_entry_set_submenu(MenuEntry *entry, Menu *submenu)
 260 {
 261     g_assert(entry != NULL);
 262
 263     entry->submenu = submenu;
 264
 265     if(entry->parent != NULL)
 266         entry->parent->invalid = TRUE;
 267 }
 268
 269 void menu_add_entry(Menu *menu, MenuEntry *entry)
 270 {
 271     XSetWindowAttributes attrib;
 272
 273     g_assert(menu != NULL);
 274     g_assert(entry != NULL);
 275     g_assert(entry->item == None);
 276
 277     menu->entries = g_list_append(menu->entries, entry);
 278     entry->parent = menu;
 279
 280     attrib.event_mask = ENTRY_EVENTMASK;
 281     entry->item = createWindow(menu->items, CWEventMask, &attrib);
 282     XMapWindow(ob_display, entry->item);
 283
 284     entry->a_item = entry->a_disabled = entry->a_hilite = NULL;
 285
 286     menu->invalid = TRUE;
 287
 288     g_hash_table_insert(window_map, &entry->item, menu);
 289 }
 290
 291 void menu_show(char *name, int x, int y, Client *client)
 292 {
 293     Menu *self;
 294
 295     self = g_hash_table_lookup(menu_hash, name);
 296     if (!self) {
 297         g_warning("Attempted to show menu '%s' but it does not exist.",
 298                   name);
 299         return;
 300     }
 301
 302     menu_show_full(self, x, y, client);
 303 }
 304
 305 void menu_show_full(Menu *self, int x, int y, Client *client)
 306 {
 307     g_assert(self != NULL);
 308
 309     menu_render(self);
 310
 311     self->client = client;
 312
 313     if (!self->shown) {
 314         if (!self->parent) {
 315             grab_pointer(TRUE, None);
 316             grab_keyboard(TRUE);
 317         }
 318         menu_visible = g_slist_append(menu_visible, self);
 319     }
 320
 321     if (self->show) {
 322         self->show(self, x, y, client);
 323     } else {
 324       menu_control_show(self, x, y, client);
 325     }
 326 }
 327
 328 void menu_hide(Menu *self) {
 329     if (self->shown) {
 330         XUnmapWindow(ob_display, self->frame);
 331         self->shown = FALSE;
 332         if (self->open_submenu)
 333             menu_hide(self->open_submenu);
 334         if (self->parent && self->parent->open_submenu == self)
 335             self->parent->open_submenu = NULL;
 336
 337         if (!self->parent) {
 338             grab_keyboard(FALSE);
 339             grab_pointer(FALSE, None);
 340         }
 341         menu_visible = g_slist_remove(menu_visible, self);
 342     }
 343 }
 344
 345 void menu_clear(Menu *self) {
 346     GList *it;
 347
 348     for (it = self->entries; it; it = it->next) {
 349         MenuEntry *entry = it->data;
 350         menu_entry_free(entry);
 351     }
 352     self->entries = NULL;
 353     self->invalid = TRUE;
 354 }
 355
 356
 357 MenuEntry *menu_find_entry(Menu *menu, Window win)
 358 {
 359     GList *it;
 360
 361     for (it = menu->entries; it; it = it->next) {
 362         MenuEntry *entry = it->data;
 363         if (entry->item == win)
 364             return entry;
 365     }
 366     return NULL;
 367 }
 368
 369 MenuEntry *menu_find_entry_by_pos(Menu *menu, int x, int y)
 370 {
 371     if (x < 0 || x >= menu->size.width || y < 0 || y >= menu->size.height)
 372         return NULL;
 373
 374     y -= menu->title_h + ob_rr_theme->bwidth;
 375     if (y < 0) return NULL;
 376
 377     g_message ("%d %p", y/menu->item_h, g_list_nth_data(menu->entries, y / menu->item_h));
 378     return g_list_nth_data(menu->entries, y / menu->item_h);
 379 }
 380
 381 void menu_entry_fire(MenuEntry *self)
 382 {
 383     Menu *m;
 384
 385     if (self->action) {
 386         self->action->data.any.c = self->parent->client;
 387         self->action->func(&self->action->data);
 388
 389         /* hide the whole thing */
 390         m = self->parent;
 391         while (m->parent) m = m->parent;
 392         menu_hide(m);
 393     }
 394 }
 395
 396 /*
 397    Default menu controller action for showing.
 398 */
 399
 400 void menu_control_show(Menu *self, int x, int y, Client *client) {
 401     guint i;
 402     Rect *a = NULL;
 403
 404     g_assert(!self->invalid);
 405
 406     for (i = 0; i < screen_num_xin_areas; ++i) {
 407         a = screen_physical_area_xinerama(i);
 408         if (RECT_CONTAINS(*a, x, y))
 409             break;
 410     }
 411     g_assert(a != NULL);
 412     self->xin_area = i;
 413
 414     POINT_SET(self->location,
 415               MIN(x, a->x + a->width - 1 - self->size.width),
 416               MIN(y, a->y + a->height - 1 - self->size.height));
 417     XMoveWindow(ob_display, self->frame, self->location.x, self->location.y);
 418
 419     if (!self->shown) {
 420         XMapWindow(ob_display, self->frame);
 421         stacking_raise(MENU_AS_WINDOW(self));
 422         self->shown = TRUE;
 423     } else if (self->shown && self->open_submenu) {
 424         menu_hide(self->open_submenu);
 425     }
 426 }
 427
 428 void menu_control_mouseover(MenuEntry *self, gboolean enter) {
 429     int x;
 430     Rect *a;
 431
 432     self->hilite = enter;
 433
 434     if (enter) {
 435         if (self->parent->open_submenu && self->submenu
 436             != self->parent->open_submenu)
 437             menu_hide(self->parent->open_submenu);
 438
 439         if (self->submenu) {
 440             self->parent->open_submenu = self->submenu;
 441
 442             /* shouldn't be invalid since it must be displayed */
 443             g_assert(!self->parent->invalid);
 444             /* TODO: I don't understand why these bevels should be here.
 445                Something must be wrong in the width calculation */
 446             x = self->parent->location.x + self->parent->size.width +
 447                 ob_rr_theme->bwidth;
 448
 449             /* need to get the width. is this bad?*/
 450             menu_render(self->submenu);
 451
 452             a = screen_physical_area_xinerama(self->parent->xin_area);
 453
 454             if (self->submenu->size.width + x >= a->x + a->width)
 455                 x = self->parent->location.x - self->submenu->size.width -
 456                     ob_rr_theme->bwidth;
 457
 458             menu_show_full(self->submenu, x,
 459                            self->parent->location.y + self->y,
 460                            self->parent->client);
 461         }
 462     }
 463 }