Files
lazygit/pkg/gui/controllers/context_lines_controller.go

77 lines
2.3 KiB
Go

package controllers
import (
"fmt"
"math"
"github.com/jesseduffield/lazygit/pkg/gui/types"
)
// This controller lets you change the context size for diffs. The 'context' in 'context size' refers to the conventional meaning of the word 'context' in a diff, as opposed to lazygit's own idea of a 'context'.
type ContextLinesController struct {
baseController
c *ControllerCommon
}
var _ types.IController = &ContextLinesController{}
func NewContextLinesController(
c *ControllerCommon,
) *ContextLinesController {
return &ContextLinesController{
baseController: baseController{},
c: c,
}
}
func (self *ContextLinesController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
bindings := []*types.Binding{
{
Keys: opts.GetKeys(opts.Config.Universal.IncreaseContextInDiffView),
Handler: self.Increase,
Description: self.c.Tr.IncreaseContextInDiffView,
Tooltip: self.c.Tr.IncreaseContextInDiffViewTooltip,
},
{
Keys: opts.GetKeys(opts.Config.Universal.DecreaseContextInDiffView),
Handler: self.Decrease,
Description: self.c.Tr.DecreaseContextInDiffView,
Tooltip: self.c.Tr.DecreaseContextInDiffViewTooltip,
},
}
return bindings
}
func (self *ContextLinesController) Context() types.Context {
return nil
}
func (self *ContextLinesController) Increase() error {
if self.c.UserConfig().Git.DiffContextSize < math.MaxUint64 {
self.c.UserConfig().Git.DiffContextSize++
}
return self.applyChange()
}
func (self *ContextLinesController) Decrease() error {
if self.c.UserConfig().Git.DiffContextSize > 0 {
self.c.UserConfig().Git.DiffContextSize--
}
return self.applyChange()
}
func (self *ContextLinesController) applyChange() error {
self.c.Toast(fmt.Sprintf(self.c.Tr.DiffContextSizeChanged, self.c.UserConfig().Git.DiffContextSize))
currentContext := self.c.Context().CurrentSide()
// The diff is about to be rendered again with more or less context around
// each change, which reads as the lines you were looking at moving up or down
// the view; keep them where they are instead.
self.c.Helpers().DiffLine.PreserveDiffPositionOnRerender(self.c.Contexts().Normal.GetView())
self.c.Helpers().DiffLine.PreserveDiffPositionOnRerender(self.c.Contexts().NormalSecondary.GetView())
currentContext.HandleRenderToMain()
return nil
}