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package proxy
import (
"strings"
"sync"
"github.com/HimbeerserverDE/mt"
)
var (
onPlayerReceiveFields map[string][]func(*ClientConn, []mt.Field)
onPlayerReceiveFieldsMu sync.Mutex
onPlayerReceiveFieldsOnce sync.Once
)
// ShowFormspec opens a formspec on the client.
// The form name should follow the standard minetest naming convention,
// i.e. "pluginname:formname".
// If formname is empty, it reshows the inventory formspec
// without updating it for future opens.
// If formspec is empty, the formspec is closed.
// If formname is empty at the same time, any formspec is closed
// regardless of its name.
func (cc *ClientConn) ShowFormspec(formname string, formspec string) {
cc.SendCmd(&mt.ToCltShowFormspec{
Formspec: cc.FormspecPrepend + formspec,
Formname: formname,
})
}
// FormspecEscape escapes characters that cannot be used in formspecs.
func FormspecEscape(formspec string) string {
formspec = strings.ReplaceAll(formspec, "\\", "\\\\")
formspec = strings.ReplaceAll(formspec, "[", "\\[")
formspec = strings.ReplaceAll(formspec, "]", "\\]")
formspec = strings.ReplaceAll(formspec, ";", "\\;")
formspec = strings.ReplaceAll(formspec, ",", "\\,")
formspec = strings.ReplaceAll(formspec, "$", "\\$")
return formspec
}
// RegisterOnPlayerReceiveFields registers a callback that is called
// when a client submits a specific formspec.
// Events triggering this callback include a button being pressed,
// Enter being pressed while a text field is focused,
// a checkbox being toggled, an item being selected in a dropdown list,
// selecting a new tab, changing the selection in a textlist or table,
// selecting an entry in a textlist or table, a scrollbar being moved
// or the form actively being closed by the player.
func RegisterOnPlayerReceiveFields(formname string, handler func(*ClientConn, []mt.Field)) {
initOnPlayerReceiveFields()
onPlayerReceiveFieldsMu.Lock()
defer onPlayerReceiveFieldsMu.Unlock()
onPlayerReceiveFields[formname] = append(onPlayerReceiveFields[formname], handler)
}
func handleOnPlayerReceiveFields(cc *ClientConn, cmd *mt.ToSrvInvFields) bool {
onPlayerReceiveFieldsMu.Lock()
defer onPlayerReceiveFieldsMu.Unlock()
handlers, ok := onPlayerReceiveFields[cmd.Formname]
if !ok || len(handlers) == 0 {
return false
}
for _, handler := range handlers {
handler(cc, cmd.Fields)
}
return true
}
func initOnPlayerReceiveFields() {
onPlayerReceiveFieldsOnce.Do(func() {
onPlayerReceiveFieldsMu.Lock()
defer onPlayerReceiveFieldsMu.Unlock()
onPlayerReceiveFields = make(map[string][]func(*ClientConn, []mt.Field))
})
}
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