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package gui
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import (
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"fmt"
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"log"
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"reflect"
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"github.com/gdamore/tcell"
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"github.com/rivo/tview"
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)
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type Tree struct {
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*tview.TreeView
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OriginRoot *tview.TreeNode
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}
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func NewTree() *Tree {
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t := &Tree{
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TreeView: tview.NewTreeView(),
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}
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t.SetBorder(true).SetTitle("json tree").SetTitleAlign(tview.AlignLeft)
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return t
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}
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func (t *Tree) UpdateView(g *Gui, i interface{}) {
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g.App.QueueUpdateDraw(func() {
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r := reflect.ValueOf(i)
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var root *tview.TreeNode
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switch r.Kind() {
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case reflect.Map:
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root = tview.NewTreeNode("{object}").SetReference(Object)
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case reflect.Slice:
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root = tview.NewTreeNode("{array}").SetReference(Array)
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default:
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root = tview.NewTreeNode("{value}").SetReference(Key)
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}
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root.SetChildren(t.AddNode(i))
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t.SetRoot(root).SetCurrentNode(root)
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originRoot := *root
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t.OriginRoot = &originRoot
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})
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}
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func (t *Tree) AddNode(node interface{}) []*tview.TreeNode {
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var nodes []*tview.TreeNode
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switch node := node.(type) {
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case map[string]interface{}:
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for k, v := range node {
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newNode := t.NewNodeWithLiteral(k).
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SetColor(tcell.ColorMediumSlateBlue).
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SetChildren(t.AddNode(v))
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r := reflect.ValueOf(v)
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if r.Kind() == reflect.Slice {
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newNode.SetReference(Array)
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} else if r.Kind() == reflect.Map {
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newNode.SetReference(Object)
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} else {
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newNode.SetReference(Key)
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}
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log.Printf("key:%v value:%v value_kind:%v", k, v, newNode.GetReference())
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nodes = append(nodes, newNode)
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}
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case []interface{}:
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for _, v := range node {
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switch n := v.(type) {
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case map[string]interface{}:
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r := reflect.ValueOf(n)
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if r.Kind() != reflect.Slice {
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objectNode := tview.NewTreeNode("{object}").
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SetChildren(t.AddNode(v)).SetReference(Object)
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log.Printf("value:%v value_kind:%v", v, "object")
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nodes = append(nodes, objectNode)
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}
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default:
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nodes = append(nodes, t.AddNode(v)...)
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}
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}
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default:
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log.Printf("value:%v value_kind:%v", node, "value")
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nodes = append(nodes, t.NewNodeWithLiteral(node).SetReference(Value))
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}
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return nodes
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}
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func (t *Tree) NewNodeWithLiteral(i interface{}) *tview.TreeNode {
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return tview.NewTreeNode(fmt.Sprintf("%v", i))
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}
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func (t *Tree) SetKeybindings(g *Gui) {
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t.SetSelectedFunc(func(node *tview.TreeNode) {
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nodeType := node.GetReference().(Type)
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if nodeType == Root || nodeType == Object {
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return
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}
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g.Input(node.GetText(), "filed", func(text string) {
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node.SetText(text)
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})
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})
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t.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
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switch event.Rune() {
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case 'h':
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t.GetCurrentNode().SetExpanded(false)
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case 'H':
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t.GetRoot().CollapseAll()
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case 'd':
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t.GetCurrentNode().ClearChildren()
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case 'L':
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t.GetRoot().ExpandAll()
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case 'l':
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t.GetCurrentNode().SetExpanded(true)
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case 'r':
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g.LoadJSON()
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case 's':
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g.SaveJSON()
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case '/':
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g.Search()
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}
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return event
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})
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}
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