refactor contexts

pkg/gui/context/suggestions_context.go

@@ -0,0 +1,85 @@
+package context
+
+import (
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/gui/context/traits"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+type SuggestionsContext struct {
+	*SuggestionsViewModel
+	*ListContextTrait
+}
+
+var _ types.IListContext = (*SuggestionsContext)(nil)
+
+func NewSuggestionsContext(
+	getModel func() []*types.Suggestion,
+	view *gocui.View,
+	getDisplayStrings func(startIdx int, length int) [][]string,
+
+	onFocus func(...types.OnFocusOpts) error,
+	onRenderToMain func(...types.OnFocusOpts) error,
+	onFocusLost func() error,
+
+	c *types.ControllerCommon,
+) *SuggestionsContext {
+	viewModel := NewSuggestionsViewModel(getModel)
+
+	return &SuggestionsContext{
+		SuggestionsViewModel: viewModel,
+		ListContextTrait: &ListContextTrait{
+			Context: NewSimpleContext(NewBaseContext(NewBaseContextOpts{
+				ViewName:   "suggestions",
+				WindowName: "suggestions",
+				Key:        SUGGESTIONS_CONTEXT_KEY,
+				Kind:       types.PERSISTENT_POPUP,
+				Focusable:  true,
+			}), ContextCallbackOpts{
+				OnFocus:        onFocus,
+				OnFocusLost:    onFocusLost,
+				OnRenderToMain: onRenderToMain,
+			}),
+			list:              viewModel,
+			viewTrait:         NewViewTrait(view),
+			getDisplayStrings: getDisplayStrings,
+			c:                 c,
+		},
+	}
+}
+
+func (self *SuggestionsContext) GetSelectedItemId() string {
+	item := self.GetSelected()
+	if item == nil {
+		return ""
+	}
+
+	return item.Value
+}
+
+type SuggestionsViewModel struct {
+	*traits.ListCursor
+	getModel func() []*types.Suggestion
+}
+
+func NewSuggestionsViewModel(getModel func() []*types.Suggestion) *SuggestionsViewModel {
+	self := &SuggestionsViewModel{
+		getModel: getModel,
+	}
+
+	self.ListCursor = traits.NewListCursor(self)
+
+	return self
+}
+
+func (self *SuggestionsViewModel) GetItemsLength() int {
+	return len(self.getModel())
+}
+
+func (self *SuggestionsViewModel) GetSelected() *types.Suggestion {
+	if self.GetItemsLength() == 0 {
+		return nil
+	}
+
+	return self.getModel()[self.GetSelectedLineIdx()]
+}