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lazygit/pkg/gui/context/list_context_trait.go
2022-04-16 17:29:17 +10:00

70 lines
1.8 KiB
Go

package context
import (
"fmt"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/jesseduffield/lazygit/pkg/utils"
)
type ListContextTrait struct {
types.Context
c *types.HelperCommon
list types.IList
viewTrait *ViewTrait
getDisplayStrings func(startIdx int, length int) [][]string
}
func (self *ListContextTrait) GetList() types.IList {
return self.list
}
func (self *ListContextTrait) GetViewTrait() types.IViewTrait {
return self.viewTrait
}
func (self *ListContextTrait) FocusLine() {
// we need a way of knowing whether we've rendered to the view yet.
self.viewTrait.FocusPoint(self.list.GetSelectedLineIdx())
self.setFooter()
}
func (self *ListContextTrait) setFooter() {
self.viewTrait.SetFooter(formatListFooter(self.list.GetSelectedLineIdx(), self.list.Len()))
}
func formatListFooter(selectedLineIdx int, length int) string {
return fmt.Sprintf("%d of %d", selectedLineIdx+1, length)
}
func (self *ListContextTrait) HandleFocus(opts ...types.OnFocusOpts) error {
self.FocusLine()
self.viewTrait.SetHighlight(self.list.Len() > 0)
return self.Context.HandleFocus(opts...)
}
func (self *ListContextTrait) HandleFocusLost() error {
self.viewTrait.SetOriginX(0)
return self.Context.HandleFocusLost()
}
// OnFocus assumes that the content of the context has already been rendered to the view. OnRender is the function which actually renders the content to the view
func (self *ListContextTrait) HandleRender() error {
self.list.RefreshSelectedIdx()
content := utils.RenderDisplayStrings(self.getDisplayStrings(0, self.list.Len()))
self.viewTrait.SetContent(content)
self.c.Render()
self.setFooter()
return nil
}
func (self *ListContextTrait) OnSearchSelect(selectedLineIdx int) error {
self.GetList().SetSelectedLineIdx(selectedLineIdx)
return self.HandleFocus()
}