k9s/internal/config/views.go

94 lines
2.0 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package config
import (
"os"
"gopkg.in/yaml.v2"
)
// ViewConfigListener represents a view config listener.
type ViewConfigListener interface {
// ViewSettingsChanged notifies listener the view configuration changed.
ViewSettingsChanged(ViewSetting)
}
// ViewSetting represents a view configuration.
type ViewSetting struct {
Columns []string `yaml:"columns"`
SortColumn string `yaml:"sortColumn"`
}
// ViewSettings represent a collection of view configurations.
type ViewSettings struct {
Views map[string]ViewSetting `yaml:"views"`
}
// NewViewSettings returns a new configuration.
func NewViewSettings() ViewSettings {
return ViewSettings{
Views: make(map[string]ViewSetting),
}
}
// CustomView represents a collection of view customization.
type CustomView struct {
K9s ViewSettings `yaml:"k9s"`
listeners map[string]ViewConfigListener
}
// NewCustomView returns a views configuration.
func NewCustomView() *CustomView {
return &CustomView{
K9s: NewViewSettings(),
listeners: make(map[string]ViewConfigListener),
}
}
// Reset clears out configurations.
func (v *CustomView) Reset() {
for k := range v.K9s.Views {
delete(v.K9s.Views, k)
}
}
// Load loads view configurations.
func (v *CustomView) Load(path string) error {
raw, err := os.ReadFile(path)
if err != nil {
return err
}
var in CustomView
if err := yaml.Unmarshal(raw, &in); err != nil {
return err
}
v.K9s = in.K9s
v.fireConfigChanged()
return nil
}
// AddListener registers a new listener.
func (v *CustomView) AddListener(gvr string, l ViewConfigListener) {
v.listeners[gvr] = l
v.fireConfigChanged()
}
// RemoveListener unregister a listener.
func (v *CustomView) RemoveListener(gvr string) {
delete(v.listeners, gvr)
}
func (v *CustomView) fireConfigChanged() {
for gvr, list := range v.listeners {
if v, ok := v.K9s.Views[gvr]; ok {
list.ViewSettingsChanged(v)
} else {
list.ViewSettingsChanged(ViewSetting{})
}
}
}