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loadmore.go
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loadmore.go
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package messageview
import (
"github.com/diamondburned/adaptive"
"github.com/diamondburned/gotk4/pkg/gtk/v4"
"github.com/diamondburned/gotkit/gtkutil/cssutil"
)
type loadMoreButton struct {
*gtk.Box
button *gtk.Button
errRev *gtk.Revealer
error *adaptive.ErrorLabel
}
type paginateDoneFunc func(hasMore bool, err error)
var loadMoreCSS = cssutil.Applier("messageview-loadmore", `
.messageview-loadmore {
margin: 4px;
margin-top: 50px;
}
`)
func newLoadMore(loadMore func(done paginateDoneFunc)) *loadMoreButton {
b := &loadMoreButton{}
b.button = gtk.NewButtonWithLabel("More")
b.button.AddCSSClass("messageview-loadmore-button")
b.button.SetHAlign(gtk.AlignCenter)
b.button.SetHasFrame(false)
b.button.ConnectClicked(func() {
b.button.SetSensitive(false)
loadMore(func(hasMore bool, err error) {
b.done(hasMore)
if err != nil {
b.setError(err)
}
})
})
b.errRev = gtk.NewRevealer()
b.errRev.SetTransitionType(gtk.RevealerTransitionTypeSlideDown)
b.errRev.SetRevealChild(false)
b.Box = gtk.NewBox(gtk.OrientationVertical, 0)
b.Box.Append(b.button)
b.Box.Append(b.errRev)
loadMoreCSS(b)
return b
}
func (b *loadMoreButton) setError(err error) {
b.error = adaptive.NewErrorLabel(err)
b.error.SetHAlign(gtk.AlignStart)
b.errRev.SetChild(b.error)
b.errRev.SetRevealChild(true)
}
func (b *loadMoreButton) done(hasMore bool) {
b.button.SetSensitive(hasMore)
b.errRev.SetRevealChild(false)
b.errRev.SetChild(nil)
b.error = nil
}