Split into category packages; module github.com/ZacharyZhang-NY/MujicaUI

input/copy_button.go

@@ -0,0 +1,65 @@
+package input
+
+import (
+	"log/slog"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+
+	"github.com/ZacharyZhang-NY/MujicaUI/core"
+	"github.com/ZacharyZhang-NY/MujicaUI/icons"
+	"github.com/ZacharyZhang-NY/MujicaUI/theme"
+)
+
+// copyButtonShown is how long the button says Copied.
+const copyButtonShown = 2 * time.Second
+
+// CopyButtonOptions configure a CopyButton.
+type CopyButtonOptions struct {
+	// Label shows beside the icon; empty makes a square icon button.
+	Label    string
+	Disabled bool
+}
+
+// CopyButton puts text on the clipboard, then shows and announces Copied for two seconds.
+func CopyButton(c *ui.Context, text string, opts CopyButtonOptions) core.ChoiceResult {
+	copied := core.Msg(c, "copy_button.copied")
+	name := core.Msg(c, "copy_button.copy")
+	label, icon := opts.Label, icons.Must("copy")
+	var b *ui.Element
+	box := ui.Box(c)
+	at := ui.Local(box, "copy_button.at", func() time.Time { return time.Time{} })
+	left := copyButtonShown - c.Now().Sub(*at)
+	done := !at.IsZero() && left > 0
+	if done {
+		icon, name = icons.Must("check"), copied
+		if label != "" {
+			label = copied
+		}
+		c.After(left)
+	}
+	box.Children(func() {
+		bo := ButtonOptions{Variant: Secondary, Icon: icon, Disabled: opts.Disabled}
+		if opts.Label == "" {
+			bo.Label = name
+		}
+		b = Button(c, label, bo)
+		if opts.Label == "" {
+			b.Padding(0).Size(core.Density(c).ControlHeight(), core.Density(c).ControlHeight()).Tooltip(name)
+		} else {
+			// Room for the longer word, so the width holds.
+			w1, _ := c.MeasureText(0, ui.Span{Text: copied})
+			w2, _ := c.MeasureText(0, ui.Span{Text: opts.Label})
+			b.MinWidth(max(w1, w2) + buttonSpinnerSize + core.Density(c).Unit()*10 + 2*theme.BorderWidth)
+		}
+	})
+	if b.Clicked() && !b.IsDisabled() {
+		c.WriteClipboard(text)
+		*at = c.Now()
+		c.Announce(copied)
+		c.Invalidate()
+		slog.Debug("mujica: copy_button copied", "bytes", len(text))
+		return core.NewChoiceResult(box, true)
+	}
+	return core.NewChoiceResult(box, false)
+}