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// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
package shortcuts
import (
"fmt"
"github.com/kovidgoyal/kitty/tools/tui/loop"
"strings"
)
var _ = fmt.Print
type ShortcutMap[T comparable] struct {
leaves map[string]T
children map[string]*ShortcutMap[T]
}
func (self *ShortcutMap[T]) ResolveKeyEvent(k *loop.KeyEvent, pending_keys ...string) (ac T, pending string) {
q := self
for _, pk := range pending_keys {
q = self.children[pk]
if q == nil {
return
}
}
for c, ans := range q.leaves {
if k.MatchesPressOrRepeat(c) {
ac = ans
return
}
}
for c := range q.children {
if k.MatchesPressOrRepeat(c) {
pending = c
return
}
}
return
}
func (self *ShortcutMap[T]) Add(ac T, keys ...string) (conflict T) {
return self.add(ac, keys)
}
func (self *ShortcutMap[T]) AddOrPanic(ac T, keys ...string) {
var zero T
c := self.add(ac, keys)
if c != zero {
panic(fmt.Sprintf("The shortcut for %#v (%s) conflicted with the shortcut for %#v (%s)",
ac, strings.Join(keys, " "), c, strings.Join(self.shortcut_for(c), " ")))
}
}
func New[T comparable]() *ShortcutMap[T] {
return &ShortcutMap[T]{leaves: make(map[string]T), children: make(map[string]*ShortcutMap[T])}
}
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