/** This function changes the menuitem to the given one, and does necessary
* actions.
* To leave the menu system, specify NULL for new_menuitem.
* The item will not be reset when the new item is a child of the last one.
*/
void
menuscreen_switch_item(MenuItem * new_menuitem)
{
MenuItem *old_menuitem = active_menuitem;
debug(RPT_DEBUG, "%s(item=[%s]) from active_menuitem=[%s]", __FUNCTION__,
((new_menuitem != NULL) ? new_menuitem->id : "(null)"),
((old_menuitem != NULL) ? old_menuitem->id : "(null)"));
/* First we do the switch */
active_menuitem = new_menuitem;
/* What was the state change ? */
if (!old_menuitem && !new_menuitem) {
/* Nothing to be done */
}
else if (old_menuitem && !new_menuitem) {
/* leave menu system */
menuscreen->priority = PRI_HIDDEN;
}
else if (!old_menuitem && new_menuitem) {
/* Menu is becoming active */
menuitem_reset(active_menuitem);
menuitem_rebuild_screen(active_menuitem, menuscreen);
menuscreen->priority = PRI_INPUT;
}
else {
/* We're left with the usual case: a menu level switch */
if (old_menuitem->parent != new_menuitem) {
menuitem_reset(new_menuitem);
}
menuitem_rebuild_screen(active_menuitem, menuscreen);
}
if (old_menuitem && old_menuitem->event_func)
old_menuitem->event_func(old_menuitem, MENUEVENT_LEAVE);
if (new_menuitem && new_menuitem->event_func)
new_menuitem->event_func(new_menuitem, MENUEVENT_ENTER);
return;
}
/**************************************************************************
* menu_set_item_func
* Sets the info about a menu item
*
* For example, text displayed, value, etc...
*
* Usage: menu_set_item <menuid> <itemid> {<option>}+
* The following parameters can be set per item:
* (you should include the - in the option)
*
* For all types:
* -text "text" ("")
* Sets the visible text.
* -is_hidden false|true (false)
* If the item currently should not appear in a menu.
* -prev id ()
* Sets the predecessor of this item (what happens after "Escape")
*
* For all except menus:
* -next id ()
* Sets the successor of this item (what happens after "Enter")
*
* action:
* -menu_result none|close|quit (none)
* Sets what to do with the menu when this action is selected:
* - none: the menu stays as it is.
* - close: the menu closes and returns to a higher level.
* - quit: quits the menu completely so you can foreground your app.
*
* checkbox:
* -value off|on|gray (off)
* Sets its current value.
* -allow_gray false|true (false)
* Sets if a grayed checkbox is allowed.
*
* ring:
* -value <int> (0)
* Sets the index in the stringlist that is currently selected.
* -strings <string> (empty)
* The subsequent strings that can be selected. They should be
* tab-separated in ONE string.
*
* slider:
* -value <int> (0)
* Sets its current value.
* -mintext <string> ("")
* -maxtex <string> ("")
* Text at the minimal and maximal side. On small displays these might
* not be displayed.
* -minvalue <int> (0)
* -maxvalue <int> (100)
* The minimum and maximum value of the slider.
* -stepsize <int> (1)
* The stepsize of the slider. If you use 0, you can control it yourself
* completely.
*
* numeric:
* -value <int> (0)
* Sets its current value.
* -minvalue <int> (0)
* -maxvalue <int> (100)
* The minimum and maximum value that are allowed. If you make one of
* them negative, the user will be able to enter negative numbers too.
* Maybe floats will work too in the future.
*
* alpha:
* -value <string>
* Sets its current value. ("")
* -password_char <char> (none)
* -minlength <int> (0)
* -maxlength <int> (10)
* Set the minimum and maximum allowed length.
* -allow_caps false|true (true)
* -allow_noncaps false|true (false)
* -allow_numbers false|true (true)
* Allows these groups of characters.
* -allowed_extra <string> ("")
* The chars in this string are also allowed.
*
* ip:
* -value <string>
* Sets its current value. ("")
* -v6 false|true
*
* Hmm, this is getting very big. We might need a some real parser after all.
*/
int
menu_set_item_func (Client * c, int argc, char **argv)
{
typedef enum AttrType { NOVALUE, BOOLEAN, CHECKBOX_VALUE, SHORT, INT,
FLOAT, STRING } AttrType;
/* This table generalizes the options.
* The table lists which options can exist for which menu items,
* what kind of parameter they should have and where this scanned
* parameter should be stored.
*/
struct OptionTable {
MenuItemType menuitem_type; /* For what MenuItem type is
the option ?
Use -1 for ALL types. */
char * name; /* The option concerned */
AttrType attr_type; /* Type of value */
int attr_offset; /* Where to put the value
in the structure.
Use -1 to process it
yourself. */
/* Watch out with STRING, it will free() the current value
* and reallocate for the new value !! If you don't want
* that, use -1 for offset, to process it yourself. */
} option_table[] = {
{ -1, "text", STRING, offsetof(MenuItem,text) },
{ -1, "is_hidden", BOOLEAN, offsetof(MenuItem,is_hidden) },
{ -1, "prev", STRING, -1 },
{ -1, "next", STRING, -1 },
{ MENUITEM_ACTION, "menu_result", STRING, -1 },
{ MENUITEM_CHECKBOX, "value", CHECKBOX_VALUE, offsetof(MenuItem,data.checkbox.value) },
{ MENUITEM_CHECKBOX, "allow_gray", BOOLEAN, offsetof(MenuItem,data.checkbox.allow_gray) },
{ MENUITEM_RING, "value", SHORT, offsetof(MenuItem,data.ring.value) },
{ MENUITEM_RING, "strings", STRING, -1 },
{ MENUITEM_SLIDER, "value", INT, offsetof(MenuItem,data.slider.value) },
{ MENUITEM_SLIDER, "minvalue", INT, offsetof(MenuItem,data.slider.minvalue) },
{ MENUITEM_SLIDER, "maxvalue", INT, offsetof(MenuItem,data.slider.maxvalue) },
{ MENUITEM_SLIDER, "stepsize", INT, offsetof(MenuItem,data.slider.stepsize) },
{ MENUITEM_SLIDER, "mintext", STRING, offsetof(MenuItem,data.slider.mintext) },
{ MENUITEM_SLIDER, "maxtext", STRING, offsetof(MenuItem,data.slider.maxtext) },
{ MENUITEM_NUMERIC, "value", INT, offsetof(MenuItem,data.numeric.value) },
{ MENUITEM_NUMERIC, "minvalue", INT, offsetof(MenuItem,data.numeric.minvalue) },
{ MENUITEM_NUMERIC, "maxvalue", INT, offsetof(MenuItem,data.numeric.maxvalue) },
/*{ MENUITEM_NUMERIC, "allow_decimals",BOOLEAN, offsetof(MenuItem,data.numeric.allow_decimals) },*/
{ MENUITEM_ALPHA, "value", STRING, -1 /*offsetof(MenuItem,data.alpha.value)*/ },
{ MENUITEM_ALPHA, "minlength", SHORT, offsetof(MenuItem,data.alpha.minlength) },
{ MENUITEM_ALPHA, "maxlength", SHORT, offsetof(MenuItem,data.alpha.maxlength) },
{ MENUITEM_ALPHA, "password_char",STRING, -1 },
{ MENUITEM_ALPHA, "allow_caps", BOOLEAN, offsetof(MenuItem,data.alpha.allow_caps) },
{ MENUITEM_ALPHA, "allow_noncaps",BOOLEAN, offsetof(MenuItem,data.alpha.allow_noncaps) },
{ MENUITEM_ALPHA, "allow_numbers",BOOLEAN, offsetof(MenuItem,data.alpha.allow_numbers) },
{ MENUITEM_ALPHA, "allowed_extra",STRING, offsetof(MenuItem,data.alpha.allowed_extra) },
{ MENUITEM_IP, "v6", BOOLEAN, offsetof(MenuItem,data.ip.v6) },
{ MENUITEM_IP, "value", STRING, -1 /*offsetof(MenuItem,data.ip.value)*/ },
{ -1, NULL, -1, -1 }
};
debug (RPT_DEBUG, "%s( Client [%d]: %s)",
__FUNCTION__, c->sock, argv2string(argc, argv));
bool bool_value = false;
CheckboxValue checkbox_value = CHECKBOX_OFF;
short short_value = 0;
int int_value = 0;
float float_value = 0;
char * string_value = NULL;
Menu * menu;
MenuItem * item;
char * menu_id;
char * item_id;
int argnr;
if (!c->ack)
return 1;
if (argc < 4 ) {
sock_send_error(c->sock, "Usage: menu_set_item <menuid> <itemid> {<option>}+\n");
return 0;
}
menu_id = argv[1];
item_id = argv[2];
if ( menu_id[0] == 0 ) {
/* No menu specified = client's main menu */
menu = c->menu;
} else {
/* A specified menu */
menu = menu_find_item (c->menu, menu_id, true);
}
if (!menu) {
sock_send_error(c->sock, "Cannot find menu id\n");
return 0;
}
item = menu_find_item (c->menu, item_id, true);
if (!item) {
sock_send_error(c->sock, "Cannot find item\n");
return 0;
}
/* Scan all arguments */
for( argnr = 3; argnr < argc; argnr ++) {
int option_nr = -1;
int found_option_name = 0;
int error = 0;
void * location;
char * p;
/* Find the option in the table */
if( argv[argnr][0] == '-' ) {
int i;
for( i=0; option_table[i].name; i++ ) {
if( strcmp( argv[argnr]+1, option_table[i].name ) == 0 ) {
found_option_name = 1;
if( item->type == option_table[i].menuitem_type
|| option_table[i].menuitem_type == -1 ) {
option_nr = i;
}
}
}
}
else {
sock_printf_error(c->sock, "Found non-option: \"%.40s\"\n", argv[argnr]);
continue; /* Skip to next arg */
}
if( option_nr == -1 ) {
if( found_option_name ) {
sock_printf_error(c->sock, "Option not valid for menuitem type: \"%.40s\"\n", argv[argnr]);
} else {
sock_printf_error(c->sock, "Unknown option: \"%.40s\"\n", argv[argnr]);
}
continue; /* Skip to next arg */
}
/* OK, we now know we have an option that is valid for the item type. */
/* Check for value */
if( option_table[option_nr].attr_type != NOVALUE ) {
if( argnr + 1 >= argc ) {
sock_printf_error(c->sock, "Missing value at option: \"%.40s\"\n", argv[argnr]);
continue; /* Skip to next arg (probably is not existing :) */
}
}
/* Process the value that goes with the option */
location = (void*)item + option_table[option_nr].attr_offset;
switch( option_table[option_nr].attr_type ) {
case NOVALUE:
break;
case BOOLEAN:
if( strcmp( argv[argnr+1], "false" ) == 0 ) {
bool_value = false;
} else if( strcmp( argv[argnr+1], "true" ) == 0 ) {
bool_value = true;
} else {
error = 1;
break;
}
if( option_table[option_nr].attr_offset != -1 ) {
*(bool *)location = bool_value;
}
break;
case CHECKBOX_VALUE:
if( strcmp( argv[argnr+1], "off" ) == 0 ) {
checkbox_value = CHECKBOX_OFF;
} else if( strcmp( argv[argnr+1], "on" ) == 0 ) {
checkbox_value = CHECKBOX_ON;
} else if( strcmp( argv[argnr+1], "gray" ) == 0 ) {
checkbox_value = CHECKBOX_GRAY;
} else {
error = 1;
break;
}
if( option_table[option_nr].attr_offset != -1 ) {
*(CheckboxValue *)location = checkbox_value;
}
break;
case SHORT:
short_value = strtol( argv[argnr+1], &p, 0 );
if( argv[argnr+1][0] == '\0' || *p != '\0' ) {
error = 1;
break;
}
if( option_table[option_nr].attr_offset != -1 ) {
*(short*)location = short_value;
}
break;
case INT:
int_value = strtol( argv[argnr+1], &p, 0 );
if( argv[argnr+1][0] == '\0' || *p != '\0' ) {
error = 1;
break;
}
if( option_table[option_nr].attr_offset != -1 ) {
*(int*)location = int_value;
}
break;
case FLOAT:
float_value = strtod( argv[argnr+1], &p );
if( argv[argnr+1][0] == '\0' || *p != '\0' ) {
error = 1;
break;
}
if( option_table[option_nr].attr_offset != -1 ) {
*(float*)location = float_value;
}
break;
case STRING:
string_value = argv[argnr+1];
if( option_table[option_nr].attr_offset != -1 ) {
free( *(char**)location );
*(char**)location = strdup( string_value );
}
else if (strcmp(argv[argnr], "-prev") == 0) {
set_predecessor(item, string_value, c);
}
else if (strcmp(argv[argnr], "-next") == 0) {
set_successor(item, string_value, c);
}
break;
}
switch( error ) {
case 1:
sock_printf_error(c->sock, "Could not interpret value at option: \"%.40s\"\n", argv[argnr]);
argnr ++;
continue; /* Skip current option and the invalid value */
}
/* And at last process extra things for certain options.
* Most useful for the attr_offset==-1 stuff. */
switch (item->type) {
case MENUITEM_ACTION:
if( strcmp( argv[argnr]+1, "menu_result" ) == 0 ) {
if( strcmp( argv[argnr+1], "none" ) == 0 ) {
set_successor(item, "_none_", c);
} else if( strcmp( argv[argnr+1], "close" ) == 0 ) {
set_successor(item, "_close_", c);
} else if( strcmp( argv[argnr+1], "quit" ) == 0 ) {
set_successor(item, "_quit_", c);
} else {
error = 1;
}
}
break;
case MENUITEM_SLIDER:
if( item->data.slider.value < item->data.slider.minvalue ) {
item->data.slider.value = item->data.slider.minvalue;
} else if( item->data.slider.value > item->data.slider.maxvalue ) {
item->data.slider.value = item->data.slider.maxvalue;
}
break;
case MENUITEM_RING:
if( strcmp( argv[argnr]+1, "strings" ) == 0 ) {
free (item->data.ring.strings);
item->data.ring.strings = tablist2linkedlist (string_value);
}
item->data.ring.value %= LL_Length( item->data.ring.strings );
break;
case MENUITEM_NUMERIC:
menuitem_reset (item);
break;
case MENUITEM_ALPHA:
if( strcmp( argv[argnr]+1, "password_char" ) == 0 ) {
item->data.alpha.password_char = string_value[0];
}
else if( strcmp( argv[argnr]+1, "maxlength" ) == 0 ) {
char * new_buf;
if( short_value < 0 || short_value > 1000 ) {
error = 2;
break;
}
new_buf = malloc( short_value + 1 );
strncpy( new_buf, item->data.alpha.value, short_value );
new_buf[short_value] = '\0'; /* terminate */
free( item->data.alpha.value );
item->data.alpha.value = new_buf;
free( item->data.alpha.edit_str );
item->data.alpha.edit_str = malloc( short_value + 1 );
item->data.alpha.edit_str[0] = '\0';
}
else if( strcmp( argv[argnr]+1, "value" ) == 0 ) {
strncpy( item->data.alpha.value, string_value, item->data.alpha.maxlength );
item->data.alpha.value[ item->data.alpha.maxlength ] = 0; /* terminate */
}
menuitem_reset (item);
break;
case MENUITEM_IP:
if( strcmp( argv[argnr]+1, "v6" ) == 0 ) {
char * new_buf;
/* set max lenth depending ob boolean option v6 */
item->data.ip.maxlength = (bool_value == 0) ? 15 : 39;
new_buf = malloc(item->data.ip.maxlength + 1 );
strncpy( new_buf, item->data.ip.value, item->data.ip.maxlength);
new_buf[item->data.ip.maxlength] = '\0'; /* terminate */
free( item->data.ip.value );
item->data.ip.value = new_buf;
free( item->data.ip.edit_str );
item->data.ip.edit_str = malloc( item->data.ip.maxlength +1);
item->data.ip.edit_str[0] = '\0';
}
else if( strcmp( argv[argnr]+1, "value" ) == 0 ) {
strncpy( item->data.ip.value, string_value, item->data.ip.maxlength );
item->data.ip.value[item->data.ip.maxlength] = '\0'; /* terminate */
}
menuitem_reset (item);
break;
default:
break;
}
switch( error ) {
case 1:
sock_printf_error(c->sock, "Could not interpret value at option: \"%.40s\"\n", argv[argnr]);
continue; /* Skip to next arg and retry it as an option */
case 2:
sock_printf_error(c->sock, "Value out of range at option: \"%.40s\"\n", argv[argnr]);
argnr ++;
continue; /* Skip current option and the invalid value */
}
menuscreen_inform_item_modified (item);
if( option_table[option_nr].attr_type != NOVALUE ) {
/* Skip the now used argument */
argnr ++;
}
}
sock_send_string(c->sock, "success\n");
return 0;
}