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

chat/message_editor.go

@@ -0,0 +1,60 @@
+package chat
+
+import (
+	"log/slog"
+	"strings"
+
+	"github.com/egoist/mygo/ui"
+
+	"github.com/ZacharyZhang-NY/MujicaUI/core"
+	"github.com/ZacharyZhang-NY/MujicaUI/input"
+)
+
+// MessageEditorOptions configure a MessageEditor.
+type MessageEditorOptions struct {
+	// Original is the sent text; saving it unchanged is not allowed.
+	Original string
+}
+
+// MessageEditorResult is the editor's element and its outcome this frame.
+type MessageEditorResult struct {
+	Element         *ui.Element
+	saved, canceled bool
+}
+
+// Saved reports a save; the caller makes a new branch from the draft.
+func (r MessageEditorResult) Saved() bool { return r.saved }
+
+// Canceled reports Cancel or Escape.
+func (r MessageEditorResult) Canceled() bool { return r.canceled }
+
+// MessageEditor edits a sent message in *draft; Cmd+Enter saves, Escape cancels.
+func MessageEditor(c *ui.Context, draft *string, opts MessageEditorOptions) MessageEditorResult {
+	if draft == nil {
+		panic("mujica: MessageEditor needs a draft")
+	}
+	u := core.Density(c).Unit()
+	var r MessageEditorResult
+	r.Element = ui.Column(c).Gap(u * 2).MinWidth(0)
+	disabled := r.Element.IsDisabled()
+	r.Element.Children(func() {
+		area := input.TextArea(c, draft, input.TextAreaOptions{Label: core.Msg(c, "message_editor.label"), MaxHeight: 240})
+		ok := strings.TrimSpace(*draft) != "" && *draft != opts.Original
+		escape := area.Input.Shortcut(0, ui.KeyEscape)
+		ui.Row(c).Gap(u * 2).Justify(ui.End).Children(func() {
+			if input.Button(c, core.Msg(c, "message_editor.cancel"), input.ButtonOptions{Variant: input.Secondary}).Clicked() || escape {
+				r.canceled = !disabled
+			}
+			if input.Button(c, core.Msg(c, "message_editor.save"), input.ButtonOptions{Disabled: !ok}).Clicked() || area.Submitted() && ok {
+				r.saved = !disabled
+			}
+		})
+	})
+	if r.saved {
+		slog.Debug("mujica: message_editor save", "chars", len(*draft))
+	}
+	if r.canceled {
+		slog.Debug("mujica: message_editor cancel")
+	}
+	return r
+}