move merge conflicts code into controller

pkg/gui/controllers/vertical_scroll_controller.go

@@ -0,0 +1,70 @@
+package controllers
+
+import (
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
+
+// given we have no fields here, arguably we shouldn't even need this factory
+// struct, but we're maintaining consistency with the other files.
+type VerticalScrollControllerFactory struct {
+	controllerCommon *controllerCommon
+}
+
+func NewVerticalScrollControllerFactory(c *controllerCommon) *VerticalScrollControllerFactory {
+	return &VerticalScrollControllerFactory{controllerCommon: c}
+}
+
+func (self *VerticalScrollControllerFactory) Create(context types.Context) types.IController {
+	return &VerticalScrollController{
+		baseController:   baseController{},
+		controllerCommon: self.controllerCommon,
+		context:          context,
+	}
+}
+
+type VerticalScrollController struct {
+	baseController
+	*controllerCommon
+
+	context types.Context
+}
+
+func (self *VerticalScrollController) Context() types.Context {
+	return self.context
+}
+
+func (self *VerticalScrollController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
+	return []*types.Binding{}
+}
+
+func (self *VerticalScrollController) GetMouseKeybindings(opts types.KeybindingsOpts) []*gocui.ViewMouseBinding {
+	return []*gocui.ViewMouseBinding{
+		{
+			ViewName: self.context.GetViewName(),
+			Key:      gocui.MouseWheelUp,
+			Handler: func(gocui.ViewMouseBindingOpts) error {
+				return self.HandleScrollUp()
+			},
+		},
+		{
+			ViewName: self.context.GetViewName(),
+			Key:      gocui.MouseWheelDown,
+			Handler: func(gocui.ViewMouseBindingOpts) error {
+				return self.HandleScrollDown()
+			},
+		},
+	}
+}
+
+func (self *VerticalScrollController) HandleScrollUp() error {
+	self.context.GetViewTrait().ScrollUp(self.c.UserConfig.Gui.ScrollHeight)
+
+	return nil
+}
+
+func (self *VerticalScrollController) HandleScrollDown() error {
+	self.context.GetViewTrait().ScrollDown(self.c.UserConfig.Gui.ScrollHeight)
+
+	return nil
+}