1 files changed, 85 insertions, 0 deletions
diff --git a/prev/textfield_darwin.go b/prev/textfield_darwin.go
new file mode 100644
index 0000000..c61a1b9
--- /dev/null
+++ b/prev/textfield_darwin.go
@@ -0,0 +1,85 @@
+// 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)
+}
+
+// note that the property here is editable, which is the opposite of read-only
+
+func (t *textfield) ReadOnly() bool {
+	return !fromBOOL(C.textfieldEditable(t.id))
+}
+
+func (t *textfield) SetReadOnly(readonly bool) {
+	C.textfieldSetEditable(t.id, toBOOL(!readonly))
+}
+
+//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
+}