1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// Command widget allows manually testing a single widget.
package main
import (
"flag"
"fmt"
"os"
"strconv"
"src.elv.sh/pkg/cli"
"src.elv.sh/pkg/cli/term"
"src.elv.sh/pkg/cli/tk"
"src.elv.sh/pkg/ui"
)
var (
maxHeight = flag.Int("max-height", 10, "maximum height")
horizontal = flag.Bool("horizontal", false, "use horizontal listbox layout")
)
func makeWidget() tk.Widget {
items := tk.TestItems{Prefix: "list item "}
w := tk.NewComboBox(tk.ComboBoxSpec{
CodeArea: tk.CodeAreaSpec{
Prompt: func() ui.Text {
return ui.Concat(ui.T(" NUMBER ", ui.Bold, ui.BgMagenta), ui.T(" "))
},
},
ListBox: tk.ListBoxSpec{
State: tk.ListBoxState{Items: &items},
Placeholder: ui.T("(no items)"),
Horizontal: *horizontal,
},
OnFilter: func(w tk.ComboBox, filter string) {
if n, err := strconv.Atoi(filter); err == nil {
items.NItems = n
}
},
})
return w
}
func main() {
flag.Parse()
widget := makeWidget()
tty := cli.NewTTY(os.Stdin, os.Stderr)
restore, err := tty.Setup()
if err != nil {
fmt.Fprintln(os.Stderr, err)
return
}
defer restore()
defer tty.CloseReader()
for {
h, w := tty.Size()
if h > *maxHeight {
h = *maxHeight
}
tty.UpdateBuffer(nil, widget.Render(w, h), false)
event, err := tty.ReadEvent()
if err != nil {
errBuf := term.NewBufferBuilder(w).Write(err.Error(), ui.FgRed).Buffer()
tty.UpdateBuffer(nil, errBuf, true)
break
}
handled := widget.Handle(event)
if !handled && event == term.K('D', ui.Ctrl) {
tty.UpdateBuffer(nil, term.NewBufferBuilder(w).Buffer(), true)
break
}
}
}
|
