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lazygit/pkg/gui/context/menu_context.go

128 lines
3.3 KiB
Go

package context
import (
"github.com/jesseduffield/generics/slices"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
"github.com/jesseduffield/lazygit/pkg/gui/style"
"github.com/jesseduffield/lazygit/pkg/gui/types"
)
type MenuContext struct {
*MenuViewModel
*ListContextTrait
}
var _ types.IListContext = (*MenuContext)(nil)
func NewMenuContext(
view *gocui.View,
c *types.HelperCommon,
getOptionsMap func() map[string]string,
renderToDescriptionView func(string),
) *MenuContext {
viewModel := NewMenuViewModel()
onFocus := func(...types.OnFocusOpts) error {
selectedMenuItem := viewModel.GetSelected()
renderToDescriptionView(selectedMenuItem.Tooltip)
return nil
}
return &MenuContext{
MenuViewModel: viewModel,
ListContextTrait: &ListContextTrait{
Context: NewSimpleContext(NewBaseContext(NewBaseContextOpts{
ViewName: "menu",
Key: "menu",
Kind: types.PERSISTENT_POPUP,
OnGetOptionsMap: getOptionsMap,
Focusable: true,
}), ContextCallbackOpts{
OnFocus: onFocus,
}),
getDisplayStrings: viewModel.GetDisplayStrings,
list: viewModel,
viewTrait: NewViewTrait(view),
c: c,
},
}
}
// TODO: remove this thing.
func (self *MenuContext) GetSelectedItemId() string {
item := self.GetSelected()
if item == nil {
return ""
}
return item.Label
}
type MenuViewModel struct {
menuItems []*types.MenuItem
*BasicViewModel[*types.MenuItem]
}
func NewMenuViewModel() *MenuViewModel {
self := &MenuViewModel{
menuItems: nil,
}
self.BasicViewModel = NewBasicViewModel(func() []*types.MenuItem { return self.menuItems })
return self
}
func (self *MenuViewModel) SetMenuItems(items []*types.MenuItem) {
self.menuItems = items
}
// TODO: move into presentation package
func (self *MenuViewModel) GetDisplayStrings(_startIdx int, _length int) [][]string {
showKeys := slices.Some(self.menuItems, func(item *types.MenuItem) bool {
return item.Key != nil
})
return slices.Map(self.menuItems, func(item *types.MenuItem) []string {
displayStrings := item.LabelColumns
if showKeys {
displayStrings = slices.Prepend(displayStrings, style.FgCyan.Sprint(keybindings.GetKeyDisplay(item.Key)))
}
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 err := selectedItem.OnPress(); err != nil {
return err
}
return nil
}