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package key
import (
"fmt"
"github.com/jroimartin/gocui"
"github.com/sirupsen/logrus"
"github.com/spf13/viper"
"github.com/wagoodman/dive/runtime/ui/format"
"github.com/wagoodman/keybinding"
)
type BindingInfo struct {
Key gocui.Key
Modifier gocui.Modifier
ConfigKeys []string
OnAction func() error
IsSelected func() bool
Display string
}
type Binding struct {
key []keybinding.Key
displayName string
selectedFn func() bool
actionFn func() error
}
func GenerateBindings(gui *gocui.Gui, influence string, infos []BindingInfo) ([]*Binding, error) {
var result = make([]*Binding, 0)
for _, info := range infos {
var err error
var binding *Binding
if info.ConfigKeys != nil && len(info.ConfigKeys) > 0 {
binding, err = NewBindingFromConfig(gui, influence, info.ConfigKeys, info.Display, info.OnAction)
} else {
binding, err = NewBinding(gui, influence, info.Key, info.Modifier, info.Display, info.OnAction)
}
if err != nil {
return nil, err
}
if info.IsSelected != nil {
binding.RegisterSelectionFn(info.IsSelected)
}
if len(info.Display) > 0 {
result = append(result, binding)
}
}
return result, nil
}
func NewBinding(gui *gocui.Gui, influence string, key gocui.Key, mod gocui.Modifier, displayName string, actionFn func() error) (*Binding, error) {
return newBinding(gui, influence, []keybinding.Key{{Value: key, Modifier: mod}}, displayName, actionFn)
}
func NewBindingFromConfig(gui *gocui.Gui, influence string, configKeys []string, displayName string, actionFn func() error) (*Binding, error) {
var parsedKeys []keybinding.Key
for _, configKey := range configKeys {
bindStr := viper.GetString(configKey)
if bindStr == "" {
logrus.Debugf("skipping keybinding '%s' (no value given)", configKey)
continue
}
logrus.Debugf("parsing keybinding '%s' --> '%s'", configKey, bindStr)
keys, err := keybinding.ParseAll(bindStr)
if err != nil {
return nil, err
}
if len(keys) > 0 {
parsedKeys = keys
break
}
}
if parsedKeys == nil {
return nil, fmt.Errorf("could not find configured keybindings for: %+v", configKeys)
}
return newBinding(gui, influence, parsedKeys, displayName, actionFn)
}
func newBinding(gui *gocui.Gui, influence string, keys []keybinding.Key, displayName string, actionFn func() error) (*Binding, error) {
binding := &Binding{
key: keys,
displayName: displayName,
actionFn: actionFn,
}
for _, key := range keys {
if err := gui.SetKeybinding(influence, key.Value, key.Modifier, binding.onAction); err != nil {
return nil, err
}
}
return binding, nil
}
func (binding *Binding) RegisterSelectionFn(selectedFn func() bool) {
binding.selectedFn = selectedFn
}
func (binding *Binding) onAction(*gocui.Gui, *gocui.View) error {
if binding.actionFn == nil {
return fmt.Errorf("no action configured for '%+v'", binding)
}
return binding.actionFn()
}
func (binding *Binding) isSelected() bool {
if binding.selectedFn == nil {
return false
}
return binding.selectedFn()
}
func (binding *Binding) RenderKeyHelp() string {
return format.RenderHelpKey(binding.key[0].String(), binding.displayName, binding.isSelected())
}
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