void menu_button(WThing *thing, XButtonEvent *ev,
WFunction *func, WFuncArg arg)
{
WMenu *menu;
int x, y, entry;
if(!WTHING_IS(thing, WTHING_MENU))
return;
menu=(WMenu*)thing;
x=ev->x_root-menu->x;
y=ev->y_root-menu->y;
entry=entry_at(menu, x, y);
if(ev->type==ButtonPress){
/* press */
if(entry==menu->selected){
menu_set_selected(menu, NO_ENTRY);
}else{
menu_set_selected(menu, entry);
show_selected_submenu(menu);
}
return;
}
end_scroll();
/* release */
if(entry>=0){
if(menu->selected==entry)
menu_execute_selected(menu);
}else if(entry!=ENTRY_TITLE && !(menu->flags&WMENU_KEEP)){
finish_menu(menu, FALSE);
}
destroy_contextual_menus();
}
bool menu_select_at(WMenu *menu, int rx, int ry)
{
int x, y;
int entry;
x=rx-menu->x;
y=ry-menu->y;
entry=entry_at(menu, x, y);
if(entry==NO_ENTRY){
if(MENU_SUBMENU(menu)==NULL)
menu_set_selected(menu, NO_ENTRY);
return FALSE;
}
if(entry!=menu->selected){
menu_set_selected(menu, entry);
show_selected_submenu(menu);
}
return TRUE;
}
static void keep(WMenu *menu)
{
WWinObj *tmp;
if(menu->flags&(WMENU_KEEP|WMENU_CONTEXTUAL))
return;
menu->flags|=WMENU_KEEP;
tmp=menu->stack_above;
if(tmp!=NULL){
restack_winobj((WWinObj*)menu, LVL_MENU, TRUE);
menu_set_selected((WMenu*)tmp, NO_ENTRY);
}
draw_menu(menu, FALSE);
}
/* Execute selected entry; either show submenu or
* call given function.
*/
static bool menu_execute_selected(WMenu *menu)
{
WMenuEnt *entry;
WMenuData *data;
WThing *context;
if(menu->selected<0)
return TRUE;
/* Submenu already visible? -> return */
if(MENU_SUBMENU(menu)!=NULL)
return TRUE;
data=menu->data;
context=menu->context;
entry=&(data->entries[menu->selected]);
if(entry->flags&WMENUENT_SUBMENU){
do_show_selected_submenu(menu, entry);
return TRUE;
}
data->nref++;
if(menu->flags&WMENU_KEEP){
menu_set_selected(menu, NO_ENTRY);
}else{
finish_menu(menu, FALSE);
}
finish_contextual_menus();
if(data->exec_func!=NULL)
data->exec_func(entry, context);
if(--data->nref==0 && data->deinit_func!=NULL)
data->deinit_func(data);
return FALSE;
}
/* Destroy a menu and all its submenus.
*/
static void do_destroy_menu_tree(WMenu *menu, bool setsel,
bool contextual_only)
{
WWinObj *tmpobj=NULL, *p, *next;
WWinObj *parent=menu->stack_above;
p=init_traverse_winobjs_b((WWinObj*)menu, &tmpobj);
for(; p!=NULL; p=next){
next=traverse_winobjs_b(p, (WWinObj*)menu, &tmpobj);
if(!WTHING_IS(p, WTHING_MENU))
continue;
if(contextual_only && !(p->flags&WMENU_CONTEXTUAL))
continue;
/* destroy the menu */
parent=p->stack_above;
do_destroy_menu((WMenu*)p);
if(setsel && parent!=NULL && WTHING_IS(parent, WTHING_MENU))
menu_set_selected((WMenu*)parent, NO_ENTRY);
}
}
void menu_command(WMenu *menu, int cmd)
{
WMenu *other;
switch(cmd){
case MENU_CMD_PREV:
if(menu->selected>0)
menu_set_selected(menu, menu->selected-1);
else
menu_set_selected(menu, menu->data->nentries-1);
vis_entry(menu, menu->selected);
break;
case MENU_CMD_NEXT:
if(menu->selected<menu->data->nentries-1)
menu_set_selected(menu, menu->selected+1);
else
menu_set_selected(menu, 0);
vis_entry(menu, menu->selected);
break;
case MENU_CMD_ENTERSUB:
case MENU_CMD_EXECUTE:
if(menu->selected<0)
break;
if(MENU_SUBMENU(menu)==NULL){
if(menu->data->entries[menu->selected].flags&WMENUENT_SUBMENU)
show_selected_submenu(menu);
}
other=MENU_SUBMENU(menu);
if(other!=NULL){
set_active_menu(other);
if(other->selected==NO_ENTRY)
other->selected=0;
vis_entry(other, other->selected);
break;
}
if(cmd!=MENU_CMD_EXECUTE)
break;
menu_execute_selected(menu);
break;
case MENU_CMD_LEAVESUB:
other=MENU_PARENT(menu);
if(other!=NULL){
do_destroy_menu_tree(menu, FALSE, FALSE);
/* set_active_menu is not used because unlink_winobj_d gives the
* parent a focus if the destroyed menu is current. This should
* not bee true in INPUT_CTXMENU mode.
*/
if(wglobal.input_mode==INPUT_CTXMENU)
wglobal.grab_holder=(WThing*)other;
vis_entry(other, other->selected);
}
break;
case MENU_CMD_CLOSE:
finish_menu(menu, TRUE);
finish_contextual_menus();
break;
case MENU_CMD_RAISEKEEP:
raise_winobj((WWinObj*)menu);
case MENU_CMD_KEEP:
keep(menu);
break;
}
}
void load_menu(){
window_stack_pop(true);
window_stack_push(menu_window, true);
current_screen=SCREEN_MENU_KEY;
menu_set_selected(last_screen);
}
