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* Updates README.md Signed-off-by: Saahil Bhavsar <saahil_bhavsar@outlook.com> * Separates selector for unix and windows Signed-off-by: Saahil Bhavsar <saahil_bhavsar@outlook.com> * Updates dependencies Signed-off-by: Saahil Bhavsar <saahil_bhavsar@outlook.com> --------- Signed-off-by: Saahil Bhavsar <saahil_bhavsar@outlook.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| //go:build windows | ||
| // +build windows | ||
|
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||
| package selector | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
|
|
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| "github.com/buger/goterm" | ||
| "golang.org/x/sys/windows" | ||
| ) | ||
|
|
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| type Menu struct { | ||
| Prompt string | ||
| CursorPos int | ||
| MenuItems []*MenuItem | ||
| } | ||
|
|
||
| type MenuItem struct { | ||
| Text string | ||
| ID string | ||
| } | ||
|
|
||
| var up byte = 65 | ||
| var down byte = 66 | ||
| var escape byte = 27 | ||
| var enter byte = 13 | ||
| var ctrl_c byte = 3 | ||
|
|
||
| var keys = map[byte]bool{ | ||
| up: true, | ||
| down: true, | ||
| } | ||
|
|
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| func (m *Menu) AddItem(option string, id string) *Menu { | ||
| menuItem := &MenuItem{ | ||
| Text: option, | ||
| ID: id, | ||
| } | ||
|
|
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| m.MenuItems = append(m.MenuItems, menuItem) | ||
|
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| return m | ||
| } | ||
|
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| func (m *Menu) renderMenuItems(redraw bool) { | ||
| if redraw { | ||
| fmt.Printf("\033[%dA", len(m.MenuItems)-1) | ||
| } | ||
|
|
||
| for index, menuItem := range m.MenuItems { | ||
| var newline = "\n" | ||
|
|
||
| if index == len(m.MenuItems)-1 { | ||
| newline = "" | ||
| } | ||
|
|
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| menuItemText := menuItem.Text | ||
| cursor := " " | ||
| if index == m.CursorPos { | ||
| cursor = goterm.Color("> ", goterm.YELLOW) | ||
| menuItemText = goterm.Color(menuItemText, goterm.YELLOW) | ||
| } | ||
|
|
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| fmt.Printf("\r%s %s%s", cursor, menuItemText, newline) | ||
| } | ||
| } | ||
|
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| func (m *Menu) Display() string { | ||
| defer func() { | ||
| fmt.Printf("\033[?25h") | ||
| }() | ||
|
|
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| fmt.Printf("%s\n", goterm.Color(goterm.Bold(m.Prompt)+":", goterm.CYAN)) | ||
|
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| m.renderMenuItems(false) | ||
|
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| fmt.Printf("\033[?25l") | ||
|
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| for { | ||
| keyCode := getInput() | ||
| if keyCode == escape { | ||
| return "" | ||
| } else if keyCode == enter { | ||
| menuItem := m.MenuItems[m.CursorPos] | ||
|
|
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| fmt.Println("\r") | ||
|
|
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| return menuItem.ID | ||
| } else if keyCode == up { | ||
| m.CursorPos = (m.CursorPos + len(m.MenuItems) - 1) % len(m.MenuItems) | ||
| m.renderMenuItems(true) | ||
| } else if keyCode == down { | ||
| m.CursorPos = (m.CursorPos + 1) % len(m.MenuItems) | ||
| m.renderMenuItems(true) | ||
| } else if keyCode == ctrl_c { | ||
| return "" | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (m *Menu) Clear() { | ||
| for i := 0; i < (len(m.MenuItems) + 1); i++ { | ||
| fmt.Print("\033[F\033[K") | ||
| } | ||
| } | ||
|
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||
| func getInput() byte { | ||
| hConsole := windows.Handle(os.Stdin.Fd()) | ||
|
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| var originalMode uint32 | ||
|
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| err := windows.GetConsoleMode(hConsole, &originalMode) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
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| rawMode := originalMode &^ (windows.ENABLE_ECHO_INPUT | windows.ENABLE_LINE_INPUT | windows.ENABLE_PROCESSED_INPUT) | ||
|
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| err = windows.SetConsoleMode(hConsole, rawMode) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| defer func() { | ||
| windows.SetConsoleMode(hConsole, originalMode) | ||
| }() | ||
|
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| readBytes := make([]byte, 3) | ||
| read, err := os.Stdin.Read(readBytes) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| if read == 3 { | ||
| if _, ok := keys[readBytes[2]]; ok { | ||
| return readBytes[2] | ||
| } | ||
| } else { | ||
| return readBytes[0] | ||
| } | ||
|
|
||
| return 0 | ||
| } | ||
|
|
||
| func NewMenu(prompt string) *Menu { | ||
| return &Menu{ | ||
| Prompt: prompt, | ||
| MenuItems: make([]*MenuItem, 0), | ||
| } | ||
| } |
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