andlabs-ui/redo/textfield_darwin.go

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// 16 july 2014
package ui
import (
"unsafe"
)
// #include "objc_darwin.h"
import "C"
type textfield struct {
_id C.id
changed *event
invalid C.id
}
func finishNewTextField(id C.id) *textfield {
t := &textfield{
_id: id,
changed: newEvent(),
}
C.textfieldSetDelegate(t._id, unsafe.Pointer(t))
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) {
// TODO disable animations if reason is still valid
// TODO don't steal focus
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)
println("changed")
t.changed.fire()
}
func (t *textfield) id() C.id {
return t._id
}
func (t *textfield) setParent(p *controlParent) {
basesetParent(t, p)
}
func (t *textfield) allocate(x int, y int, width int, height int, d *sizing) []*allocation {
return baseallocate(t, x, y, width, height, d)
}
func (t *textfield) preferredSize(d *sizing) (width, height int) {
_, height = basepreferredSize(t, d)
// the returned width is based on the contents; use this instead
return C.textfieldWidth, height
}
func (t *textfield) commitResize(a *allocation, d *sizing) {
basecommitResize(t, a, d)
}
func (t *textfield) getAuxResizeInfo(d *sizing) {
basegetAuxResizeInfo(t, d)
}