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package context
import (
"github.com/jesseduffield/generics/slices"
"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
"github.com/jesseduffield/lazygit/pkg/gui/style"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/samber/lo"
)
type MenuContext struct {
c *ContextCommon
*MenuViewModel
*ListContextTrait
}
var _ types.IListContext = (*MenuContext)(nil)
func NewMenuContext(
c *ContextCommon,
) *MenuContext {
viewModel := NewMenuViewModel(c)
return &MenuContext{
c: c,
MenuViewModel: viewModel,
ListContextTrait: &ListContextTrait{
Context: NewSimpleContext(NewBaseContext(NewBaseContextOpts{
View: c.Views().Menu,
WindowName: "menu",
Key: "menu",
Kind: types.TEMPORARY_POPUP,
Focusable: true,
HasUncontrolledBounds: true,
})),
getDisplayStrings: viewModel.GetDisplayStrings,
list: viewModel,
c: c,
getColumnAlignments: func() []utils.Alignment { return viewModel.columnAlignment },
},
}
}
// TODO: remove this thing.
func (self *MenuContext) GetSelectedItemId() string {
item := self.GetSelected()
if item == nil {
return ""
}
return item.Label
}
type MenuViewModel struct {
c *ContextCommon
menuItems []*types.MenuItem
columnAlignment []utils.Alignment
*FilteredListViewModel[*types.MenuItem]
}
func NewMenuViewModel(c *ContextCommon) *MenuViewModel {
self := &MenuViewModel{
menuItems: nil,
c: c,
}
self.FilteredListViewModel = NewFilteredListViewModel(
func() []*types.MenuItem { return self.menuItems },
func(item *types.MenuItem) []string { return item.LabelColumns },
)
return self
}
func (self *MenuViewModel) SetMenuItems(items []*types.MenuItem, columnAlignment []utils.Alignment) {
self.menuItems = items
self.columnAlignment = columnAlignment
}
// TODO: move into presentation package
func (self *MenuViewModel) GetDisplayStrings(_startIdx int, _length int) [][]string {
menuItems := self.FilteredListViewModel.GetItems()
showKeys := slices.Some(menuItems, func(item *types.MenuItem) bool {
return item.Key != nil
})
return slices.Map(menuItems, func(item *types.MenuItem) []string {
displayStrings := item.LabelColumns
if !showKeys {
return displayStrings
}
// These keys are used for general navigation so we'll strike them out to
// avoid confusion
reservedKeys := []string{
self.c.UserConfig.Keybinding.Universal.Confirm,
self.c.UserConfig.Keybinding.Universal.Select,
self.c.UserConfig.Keybinding.Universal.Return,
self.c.UserConfig.Keybinding.Universal.StartSearch,
}
keyLabel := keybindings.LabelFromKey(item.Key)
keyStyle := style.FgCyan
if lo.Contains(reservedKeys, keyLabel) {
keyStyle = style.FgDefault.SetStrikethrough()
}
displayStrings = slices.Prepend(displayStrings, keyStyle.Sprint(keyLabel))
return displayStrings
})
}
func (self *MenuContext) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
basicBindings := self.ListContextTrait.GetKeybindings(opts)
menuItemsWithKeys := slices.Filter(self.menuItems, func(item *types.MenuItem) bool {
return item.Key != nil
})
menuItemBindings := slices.Map(menuItemsWithKeys, func(item *types.MenuItem) *types.Binding {
return &types.Binding{
Key: item.Key,
Handler: func() error { return self.OnMenuPress(item) },
}
})
// appending because that means the menu item bindings have lower precedence.
// So if a basic binding is to escape from the menu, we want that to still be
// what happens when you press escape. This matters when we're showing the menu
// for all keybindings of say the files context.
return append(basicBindings, menuItemBindings...)
}
func (self *MenuContext) OnMenuPress(selectedItem *types.MenuItem) error {
if err := self.c.PopContext(); err != nil {
return err
}
if selectedItem == nil {
return nil
}
if err := selectedItem.OnPress(); err != nil {
return err
}
return nil
}
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