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package ui
import (
"fmt"
"github.com/jroimartin/gocui"
"github.com/wagoodman/docker-image-explorer/image"
)
type LayerView struct {
Name string
gui *gocui.Gui
view *gocui.View
LayerIndex int
Layers []*image.Layer
}
func NewLayerView(name string, gui *gocui.Gui, layers []*image.Layer) (layerview *LayerView) {
layerview = new(LayerView)
// populate main fields
layerview.Name = name
layerview.gui = gui
layerview.Layers = layers
return layerview
}
func (view *LayerView) Setup(v *gocui.View) error {
// set view options
view.view = v
view.view.Wrap = false
view.view.Highlight = true
view.view.SelBgColor = gocui.ColorGreen
view.view.SelFgColor = gocui.ColorBlack
view.view.Frame = false
// set keybindings
if err := view.gui.SetKeybinding(view.Name, gocui.KeyArrowDown, gocui.ModNone, func(*gocui.Gui, *gocui.View) error { return view.CursorDown() }); err != nil {
return err
}
if err := view.gui.SetKeybinding(view.Name, gocui.KeyArrowUp, gocui.ModNone, func(*gocui.Gui, *gocui.View) error { return view.CursorUp() }); err != nil {
return err
}
view.Render()
return nil
}
func (view *LayerView) Render() error {
view.gui.Update(func(g *gocui.Gui) error {
view.view.Clear()
for idx := len(view.Layers) - 1; idx >= 0; idx-- {
layer := view.Layers[idx]
fmt.Fprintln(view.view, layer.String())
}
return nil
})
// todo: blerg
return nil
}
func (view *LayerView) CursorDown() error {
if int(view.LayerIndex) < len(view.Layers) {
err := CursorDown(view.gui, view.view)
if err == nil {
view.LayerIndex++
view.Render()
Views.Tree.setLayer(view.LayerIndex)
}
}
return nil
}
func (view *LayerView) CursorUp() error {
if int(view.LayerIndex) > 0 {
err := CursorUp(view.gui, view.view)
if err == nil {
view.LayerIndex--
view.Render()
Views.Tree.setLayer(view.LayerIndex)
}
}
return nil
}
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