generalise popup menu panel

1 files changed, 51 insertions, 0 deletions

diff --git a/pkg/gui/options_menu_panel.go b/pkg/gui/options_menu_panel.go
new file mode 100644
index 000000000..2da002b43
--- /dev/null
+++ b/pkg/gui/options_menu_panel.go
@@ -0,0 +1,51 @@
+package gui
+
+import (
+	"errors"
+
+	"github.com/jesseduffield/gocui"
+)
+
+func (gui *Gui) getBindings(v *gocui.View) []*Binding {
+	var (
+		bindingsGlobal, bindingsPanel []*Binding
+	)
+
+	bindings := gui.GetKeybindings()
+
+	for _, binding := range bindings {
+		if binding.GetKey() != "" && binding.Description != "" {
+			switch binding.ViewName {
+			case "":
+				bindingsGlobal = append(bindingsGlobal, binding)
+			case v.Name():
+				bindingsPanel = append(bindingsPanel, binding)
+			}
+		}
+	}
+
+	// append dummy element to have a separator between
+	// panel and global keybindings
+	bindingsPanel = append(bindingsPanel, &Binding{})
+	return append(bindingsPanel, bindingsGlobal...)
+}
+
+func (gui *Gui) handleCreateOptionsMenu(g *gocui.Gui, v *gocui.View) error {
+	bindings := gui.getBindings(v)
+
+	handleOptionsMenuPress := func(index int) error {
+		if bindings[index].Key == nil {
+			return nil
+		}
+		if index <= len(bindings) {
+			return errors.New("Index is greater than size of bindings")
+		}
+		err := gui.handleMenuClose(g, v)
+		if err != nil {
+			return err
+		}
+		return bindings[index].Handler(g, v)
+	}
+
+	return gui.createMenu(bindings, handleOptionsMenuPress)
+}