WIP Make it searchable

Doesn't work very well yet, but it gives you a taste of what it could look like.

pkg/gui/context/diff_context.go

@@ -0,0 +1,53 @@
+package context
+
+import (
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+type DiffContext struct {
+	*SimpleContext
+	*SearchTrait
+
+	c *ContextCommon
+}
+
+var _ types.ISearchableContext = (*DiffContext)(nil)
+
+func NewDiffContext(
+	view *gocui.View,
+	windowName string,
+	key types.ContextKey,
+
+	c *ContextCommon,
+) *DiffContext {
+	ctx := &DiffContext{
+		SimpleContext: NewSimpleContext(
+			NewBaseContext(NewBaseContextOpts{
+				Kind:             types.MAIN_CONTEXT,
+				View:             view,
+				WindowName:       windowName,
+				Key:              key,
+				Focusable:        true,
+				HighlightOnFocus: true,
+			})),
+		SearchTrait: NewSearchTrait(c),
+		c:           c,
+	}
+
+	// TODO: copied from PatchExplorerContext. Do we need something like this?
+	// ctx.GetView().SetOnSelectItem(ctx.SearchTrait.onSelectItemWrapper(
+	// 	func(selectedLineIdx int) error {
+	// 		ctx.GetMutex().Lock()
+	// 		defer ctx.GetMutex().Unlock()
+	// 		ctx.NavigateTo(ctx.c.Context().IsCurrent(ctx), selectedLineIdx)
+	// 		return nil
+	// 	}),
+	// )
+
+	return ctx
+}
+
+func (self *DiffContext) ModelSearchResults(searchStr string, caseSensitive bool) []gocui.SearchPosition {
+	return nil
+}

pkg/gui/context/setup.go

@@ -57,26 +57,8 @@ func NewContextTree(c *ContextCommon) *ContextTree {
 				Focusable:  false,
 			}),
 		),
-		Diff: NewSimpleContext(
-			NewBaseContext(NewBaseContextOpts{
-				Kind:             types.MAIN_CONTEXT,
-				View:             c.Views().Diff,
-				WindowName:       "main",
-				Key:              DIFF_MAIN_CONTEXT_KEY,
-				Focusable:        true,
-				HighlightOnFocus: true,
-			}),
-		),
-		DiffSecondary: NewSimpleContext(
-			NewBaseContext(NewBaseContextOpts{
-				Kind:             types.MAIN_CONTEXT,
-				View:             c.Views().DiffSecondary,
-				WindowName:       "secondary",
-				Key:              DIFF_SECONDARY_CONTEXT_KEY,
-				Focusable:        true,
-				HighlightOnFocus: true,
-			}),
-		),
+		Diff:          NewDiffContext(c.Views().Diff, "main", DIFF_MAIN_CONTEXT_KEY, c),
+		DiffSecondary: NewDiffContext(c.Views().DiffSecondary, "secondary", DIFF_SECONDARY_CONTEXT_KEY, c),
 		Staging: NewPatchExplorerContext(
 			c.Views().Staging,
 			"main",