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// 16 july 2014
package ui
import (
"unsafe"
)
// #include "objc_darwin.h"
import "C"
type textfield struct {
*controlSingleObject
changed *event
invalid C.id
chainpreferredSize func(d *sizing) (int, int)
}
func finishNewTextField(id C.id) *textfield {
t := &textfield{
controlSingleObject: newControlSingleObject(id),
changed: newEvent(),
}
C.textfieldSetDelegate(t.id, unsafe.Pointer(t))
t.chainpreferredSize = t.fpreferredSize
t.fpreferredSize = t.xpreferredSize
return t
}
func newTextField() *textfield {
return finishNewTextField(C.newTextField())
}
func newPasswordField() *textfield {
return finishNewTextField(C.newPasswordField())
}
func (t *textfield) Text() string {
return C.GoString(C.textfieldText(t.id))
}
func (t *textfield) SetText(text string) {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.textfieldSetText(t.id, ctext)
}
func (t *textfield) OnChanged(f func()) {
t.changed.set(f)
}
func (t *textfield) Invalid(reason string) {
if t.invalid != nil {
C.textfieldCloseInvalidPopover(t.invalid)
t.invalid = nil
}
if reason == "" {
return
}
creason := C.CString(reason)
defer C.free(unsafe.Pointer(creason))
t.invalid = C.textfieldOpenInvalidPopover(t.id, creason)
}
//export textfieldChanged
func textfieldChanged(data unsafe.Pointer) {
t := (*textfield)(data)
t.changed.fire()
}
func (t *textfield) xpreferredSize(d *sizing) (width, height int) {
_, height = t.chainpreferredSize(d)
// the returned width is based on the contents; use this instead
return C.textfieldWidth, height
}
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