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// Copyright 2019-2022 Graham Clark. All rights reserved. Use of this source
// code is governed by the MIT license that can be found in the LICENSE
// file.
// Package disable provides a widget that forces its inner widget to be disable (or enabled).
package disable
import (
"fmt"
"github.com/gcla/gowid"
)
//======================================================================
// If you would like a non-selectable widget like TextWidget to be selectable
// in some context, wrap it in Widget
//
type Widget struct {
gowid.IWidget
*gowid.Callbacks
gowid.SubWidgetCallbacks
isDisabled bool
}
func New(w gowid.IWidget) *Widget {
return NewWith(w, true)
}
func NewDisabled(w gowid.IWidget) *Widget {
return NewWith(w, true)
}
func NewEnabled(w gowid.IWidget) *Widget {
return NewWith(w, false)
}
func NewWith(w gowid.IWidget, isDisabled bool) *Widget {
res := &Widget{
IWidget: w,
isDisabled: isDisabled,
}
res.SubWidgetCallbacks = gowid.SubWidgetCallbacks{CB: &res.Callbacks}
var _ gowid.ICompositeWidget = res
return res
}
func (w *Widget) Enable() {
w.isDisabled = false
}
func (w *Widget) Disable() {
w.isDisabled = true
}
func (w *Widget) Set(val bool) {
w.isDisabled = val
}
func (w *Widget) String() string {
return fmt.Sprintf("disabled[d=%v,%v]", w.isDisabled, w.SubWidget())
}
func (w *Widget) SubWidget() gowid.IWidget {
return w.IWidget
}
func (w *Widget) SetSubWidget(wi gowid.IWidget, app gowid.IApp) {
w.IWidget = wi
gowid.RunWidgetCallbacks(w.Callbacks, gowid.SubWidgetCB{}, app, w)
}
func (w *Widget) SubWidgetSize(size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) gowid.IRenderSize {
return size
}
func (w *Widget) Selectable() bool {
return !w.isDisabled && w.SubWidget().Selectable()
}
func (w *Widget) UserInput(ev interface{}, size gowid.IRenderSize, focus gowid.Selector, app gowid.IApp) bool {
if w.isDisabled {
return false
}
return w.SubWidget().UserInput(ev, size, focus, app)
}
//======================================================================
// Local Variables:
// mode: Go
// fill-column: 110
// End:
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