|
1 | 1 | package protip |
2 | 2 |
|
3 | 3 | import ( |
4 | | - "fmt" |
| 4 | + "time" |
5 | 5 |
|
6 | 6 | "github.com/cli/cli/pkg/cmdutil" |
7 | 7 | "github.com/cli/cli/pkg/iostreams" |
| 8 | + "github.com/gdamore/tcell/v2" |
| 9 | + "github.com/mattn/go-runewidth" |
8 | 10 | "github.com/spf13/cobra" |
9 | 11 | ) |
10 | 12 |
|
@@ -37,6 +39,73 @@ func NewCmdProtip(f *cmdutil.Factory, runF func(*ProtipOptions) error) *cobra.Co |
37 | 39 | } |
38 | 40 |
|
39 | 41 | func protipRun(opts *ProtipOptions) error { |
40 | | - fmt.Println("hey") |
| 42 | + tcell.SetEncodingFallback(tcell.EncodingFallbackASCII) |
| 43 | + |
| 44 | + s, err := tcell.NewScreen() |
| 45 | + if err != nil { |
| 46 | + return err |
| 47 | + } |
| 48 | + if err = s.Init(); err != nil { |
| 49 | + return err |
| 50 | + } |
| 51 | + |
| 52 | + s.SetStyle(tcell.StyleDefault. |
| 53 | + Foreground(tcell.ColorGreen). |
| 54 | + Background(tcell.ColorBlack)) |
| 55 | + s.Clear() |
| 56 | + |
| 57 | + quit := make(chan struct{}) |
| 58 | + go func() { |
| 59 | + for { |
| 60 | + ev := s.PollEvent() |
| 61 | + switch ev := ev.(type) { |
| 62 | + case *tcell.EventKey: |
| 63 | + switch ev.Rune() { |
| 64 | + case 'q': |
| 65 | + close(quit) |
| 66 | + return |
| 67 | + } |
| 68 | + switch ev.Key() { |
| 69 | + case tcell.KeyEscape, tcell.KeyEnter: |
| 70 | + close(quit) |
| 71 | + return |
| 72 | + case tcell.KeyCtrlL: |
| 73 | + s.Sync() |
| 74 | + } |
| 75 | + case *tcell.EventResize: |
| 76 | + s.Sync() |
| 77 | + } |
| 78 | + } |
| 79 | + }() |
| 80 | + |
| 81 | +loop: |
| 82 | + for { |
| 83 | + select { |
| 84 | + case <-quit: |
| 85 | + break loop |
| 86 | + case <-time.After(time.Millisecond * 50): |
| 87 | + } |
| 88 | + w, h := s.Size() |
| 89 | + s.Clear() |
| 90 | + emitStr(s, w/2-7, h/2, tcell.StyleDefault, "TODO a protip and stuff") |
| 91 | + s.Show() |
| 92 | + } |
| 93 | + |
| 94 | + s.Fini() |
| 95 | + |
41 | 96 | return nil |
42 | 97 | } |
| 98 | + |
| 99 | +func emitStr(s tcell.Screen, x, y int, style tcell.Style, str string) { |
| 100 | + for _, c := range str { |
| 101 | + var comb []rune |
| 102 | + w := runewidth.RuneWidth(c) |
| 103 | + if w == 0 { |
| 104 | + comb = []rune{c} |
| 105 | + c = ' ' |
| 106 | + w = 1 |
| 107 | + } |
| 108 | + s.SetContent(x, y, c, comb, style) |
| 109 | + x += w |
| 110 | + } |
| 111 | +} |
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