462 lines
11 KiB
Go
462 lines
11 KiB
Go
package main
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import (
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"bufio"
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"errors"
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"fmt"
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"git.sr.ht/~geb/dotool/xkb"
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"git.sr.ht/~geb/opt"
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"github.com/bendahl/uinput"
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"math"
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"os"
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"strconv"
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"strings"
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"time"
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"unicode"
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)
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var Version string
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func usage() {
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fmt.Println(`dotool reads actions from stdin and simulates keyboard/mouse input using uinput.
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The supported actions are:
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key CHORD...
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keydown CHORD...
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keyup CHORD...
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type TEXT
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click left/middle/right
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buttondown left/middle/right
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buttonup left/middle/right
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wheel AMOUNT
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hwheel AMOUNT
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mouseto X Y
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mousemove X Y
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keydelay MILLISECONDS
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keyhold MILLISECONDS
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typedelay MILLISECONDS
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typehold MILLISECONDS
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--keyboard-name=NAME Specify the name to give the virtual keyboard device.
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--list-keys Print the possible Linux keys and exit.
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--list-x-keys Print the possible XKB keys and exit.
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--version Print the version and exit.
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See 'man dotool' for the documentation.`)
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}
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func fatal(a ...any) {
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fmt.Fprintln(os.Stderr, "dotool:", fmt.Sprint(a...))
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os.Exit(1)
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}
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func warn(a ...any) {
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fmt.Fprintln(os.Stderr, "dotool: WARNING:", fmt.Sprint(a...))
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}
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func log(err error) {
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if err != nil {
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warn(err.Error())
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}
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}
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type Chord struct {
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Super, AltGr, Ctrl, Alt, Shift bool
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Key int
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}
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func parseChord(keymap *xkb.Keymap, chord string) (Chord, error) {
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var c Chord
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keys := strings.Split(chord, "+")
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k := keys[len(keys)-1]
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if strings.HasPrefix(k, "k:") {
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code, err := strconv.Atoi(k[2:])
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if err != nil {
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return c, errors.New("invalid keycode: " + k[2:])
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}
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c.Key = code
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} else if strings.HasPrefix(k, "x:") {
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var ok bool
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c, ok = XKeys[k[2:]]
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if !ok {
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return c, errors.New("impossible XKB key for layout: " + k[2:])
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}
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} else {
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var ok bool
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c, ok = LinuxKeys[strings.ToLower(k)]
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if !ok {
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return c, errors.New("impossible key for layout: " + k)
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}
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if len(k) == 1 && unicode.IsUpper(rune(k[0])) {
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c.Shift = true
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}
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}
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for i := 0; i < len(keys) - 1; i++ {
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switch strings.ToLower(keys[i]) {
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case "super":
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c.Super = true
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case "altgr":
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c.AltGr = true
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case "ctrl", "control":
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c.Ctrl = true
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case "alt":
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c.Alt = true
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case "shift":
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c.Shift = true
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default:
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return c, errors.New("unknown modifier: " + keys[i])
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}
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}
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return c, nil
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}
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func (c Chord) KeyDown(kb uinput.Keyboard) {
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if c.Super {
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log(kb.KeyDown(super))
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}
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if c.AltGr {
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log(kb.KeyDown(altgr))
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}
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if c.Ctrl {
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log(kb.KeyDown(ctrl))
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}
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if c.Alt {
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log(kb.KeyDown(alt))
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}
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if c.Shift {
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log(kb.KeyDown(shift))
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}
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log(kb.KeyDown(c.Key))
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}
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func (c Chord) KeyUp(kb uinput.Keyboard) {
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if c.Super {
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log(kb.KeyUp(super))
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}
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if c.AltGr {
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log(kb.KeyUp(altgr))
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}
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if c.Ctrl {
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log(kb.KeyUp(ctrl))
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}
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if c.Alt {
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log(kb.KeyUp(alt))
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}
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if c.Shift {
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log(kb.KeyUp(shift))
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}
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log(kb.KeyUp(c.Key))
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}
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func listKeys(keymap *xkb.Keymap, keys map[string]Chord) {
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for code := 1; code < 256; code++ {
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for name, chord := range keys {
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if chord.Key == code && (chord == Chord{Key: code}) {
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fmt.Println(name, code)
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}
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}
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for name, chord := range keys {
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if chord.Key == code && (chord != Chord{Key: code}) {
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fmt.Println(name, code)
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}
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}
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}
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}
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func cutWord(s, word string) (string, bool) {
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if s == word {
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return "", true
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}
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if strings.HasPrefix(s, word + " ") || strings.HasPrefix(s, word + "\t") {
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return s[len(word)+1:], true
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}
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return "", false
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}
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func main() {
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var keymap *xkb.Keymap
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{
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layout := os.Getenv("DOTOOL_XKB_LAYOUT")
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if layout == "" {
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layout = os.Getenv("XKB_DEFAULT_LAYOUT")
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}
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variant := os.Getenv("DOTOOL_XKB_VARIANT")
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if variant == "" {
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variant = os.Getenv("XKB_DEFAULT_VARIANT")
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}
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if variant != "" && layout == "" {
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// Otherwise xkbcommon just ignores the variant.
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fatal("you need to set $DOTOOL_XKB_LAYOUT or $XKB_DEFAULT_LAYOUT if the variant is set")
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}
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names := xkb.RuleNames{Layout: layout, Variant: variant}
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ctx := xkb.ContextNew(xkb.ContextNoFlags)
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defer ctx.Unref()
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keymap = ctx.KeymapNewFromNames(&names, xkb.KeymapCompileNoFlags)
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if keymap == nil {
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fatal("failed to compile keymap")
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}
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defer keymap.Unref()
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initKeys(keymap)
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}
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keyboardName := []byte("dotool keyboard")
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{
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optset := opt.NewOptionSet()
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optset.FlagFunc("h", func() error {
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usage()
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os.Exit(0)
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panic("unreachable")
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})
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optset.Alias("h", "help")
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optset.Func("keyboard-name", func(s string) error {
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keyboardName = []byte(s)
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return nil
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})
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optset.FlagFunc("list-keys", func() error {
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listKeys(keymap, LinuxKeys)
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os.Exit(0)
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panic("unreachable")
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})
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optset.FlagFunc("list-x-keys", func() error {
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listKeys(keymap, XKeys)
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os.Exit(0)
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panic("unreachable")
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})
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optset.FlagFunc("version", func() error {
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fmt.Println(Version)
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os.Exit(0)
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panic("unreachable")
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})
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err := optset.Parse(true, os.Args[1:])
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if err != nil {
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fatal(err.Error())
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}
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if len(optset.Args()) > 0 {
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fatal("there should be no arguments, commands are read from stdin")
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}
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}
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keyboard, err := uinput.CreateKeyboard("/dev/uinput", keyboardName)
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if err != nil {
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fatal(err.Error())
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}
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defer keyboard.Close()
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const precision = 10000
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touchpad, err := uinput.CreateTouchPad("/dev/uinput", []byte("dotool absolute pointer"), 0, precision, 0, precision)
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if err != nil {
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fatal(err.Error())
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}
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defer touchpad.Close()
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mouse, err := uinput.CreateMouse("/dev/uinput", []byte("dotool relative pointer"))
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if err != nil {
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fatal(err.Error())
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}
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defer mouse.Close()
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keydelay := time.Duration(2)*time.Millisecond
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keyhold := time.Duration(8)*time.Millisecond
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typedelay := time.Duration(2)*time.Millisecond
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typehold := time.Duration(8)*time.Millisecond
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sc := bufio.NewScanner(os.Stdin)
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for sc.Scan() {
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text := strings.TrimLeftFunc(sc.Text(), unicode.IsSpace)
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if text == "" {
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continue
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}
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if s, ok := cutWord(text, "key"); ok {
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for _, field := range strings.Fields(s) {
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if chord, err := parseChord(keymap, field); err == nil {
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chord.KeyDown(keyboard)
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time.Sleep(keyhold)
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chord.KeyUp(keyboard)
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} else {
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warn(err.Error())
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}
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time.Sleep(keydelay)
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}
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} else if s, ok := cutWord(text, "keydown"); ok {
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for _, field := range strings.Fields(s) {
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if chord, err := parseChord(keymap, field); err == nil {
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chord.KeyDown(keyboard)
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} else {
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warn(err.Error())
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}
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time.Sleep(keydelay)
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}
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} else if s, ok := cutWord(text, "keyup"); ok {
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for _, field := range strings.Fields(s) {
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if chord, err := parseChord(keymap, field); err == nil {
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chord.KeyUp(keyboard)
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} else {
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warn(err.Error())
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}
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time.Sleep(keydelay)
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}
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} else if s, ok := cutWord(text, "keydelay"); ok {
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var d float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &d)
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if err == nil {
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keydelay = time.Duration(d)*time.Millisecond
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} else {
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warn("invalid delay: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "keyhold"); ok {
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var d float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &d)
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if err == nil {
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keyhold = time.Duration(d)*time.Millisecond
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} else {
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warn("invalid hold time: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "type"); ok {
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for _, r := range s {
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sym := xkb.Utf32ToKeysym(uint32(r))
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if sym == 0 {
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warn("invalid character: " + string(r))
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} else if c := getChord(keymap, sym); c.Key != 0 {
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c.KeyDown(keyboard)
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time.Sleep(typehold)
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c.KeyUp(keyboard)
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} else if c1, c2 := getDeadChords(keymap, r); c1.Key != 0 {
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c1.KeyDown(keyboard)
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time.Sleep(typehold)
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c1.KeyUp(keyboard)
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time.Sleep(typedelay)
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c2.KeyDown(keyboard)
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time.Sleep(typehold)
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c2.KeyUp(keyboard)
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} else {
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warn("impossible character for layout: " + string(r))
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}
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time.Sleep(typedelay)
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}
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} else if s, ok := cutWord(text, "typedelay"); ok {
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var d float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &d)
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if err == nil {
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typedelay = time.Duration(d)*time.Millisecond
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} else {
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warn("invalid delay: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "typehold"); ok {
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var d float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &d)
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if err == nil {
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typehold = time.Duration(d)*time.Millisecond
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} else {
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warn("invalid hold time: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "click"); ok {
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for _, button := range strings.Fields(s) {
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switch button {
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case "left", "1":
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log(mouse.LeftClick())
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case "middle", "2":
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log(mouse.MiddleClick())
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case "right", "3":
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log(mouse.RightClick())
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default:
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warn("unknown button: " + button)
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}
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}
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} else if s, ok := cutWord(text, "buttondown"); ok {
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for _, button := range strings.Fields(s) {
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switch button {
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case "left", "1":
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log(mouse.LeftPress())
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case "middle", "2":
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log(mouse.MiddlePress())
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case "right", "3":
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log(mouse.RightPress())
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default:
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warn("unknown button: " + button)
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}
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}
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} else if s, ok := cutWord(text, "buttonup"); ok {
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for _, button := range strings.Fields(s) {
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switch button {
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case "left", "1":
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log(mouse.LeftRelease())
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case "middle", "2":
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log(mouse.MiddleRelease())
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case "right", "3":
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log(mouse.RightRelease())
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default:
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warn("unknown button: " + button)
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}
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}
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} else if s, ok := cutWord(text, "wheel"); ok {
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var n float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &n)
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if err == nil {
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log(mouse.Wheel(false, int32(n)))
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} else {
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warn("invalid wheel amount: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "hwheel"); ok {
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var n float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &n)
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if err == nil {
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log(mouse.Wheel(true, int32(n)))
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} else {
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warn("invalid hwheel amount: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "scroll"); ok {
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var n float64
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_, err := fmt.Sscanf(s + "\n", "%f\n", &n)
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if err == nil {
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log(mouse.Wheel(false, int32(-n)))
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} else {
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warn("invalid scroll amount: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "mouseto"); ok {
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var x, y float64
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_, err := fmt.Sscanf(s + "\n", "%f %f\n", &x, &y)
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if err == nil {
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if x < 0.0 || x > 1.0 || y < 0.0 || y > 1.0 {
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warn("clamping percentages between 0.0 and 1.0: " + sc.Text())
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x = math.Max(0, math.Min(x, 1.0))
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y = math.Min(0, math.Min(y, 1.0))
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}
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x, y := int32(x * float64(precision)), int32(y * float64(precision))
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err := touchpad.MoveTo(x, y)
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if err != nil {
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warn(err.Error())
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}
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} else {
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warn("invalid coordinate: " + sc.Text())
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}
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} else if s, ok := cutWord(text, "mousemove"); ok {
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var x, y float64
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_, err := fmt.Sscanf(s + "\n", "%f %f\n", &x, &y)
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if err == nil {
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err := mouse.Move(int32(x), int32(y))
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if err != nil {
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warn(err.Error())
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}
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} else {
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warn("invalid coordinate: " + sc.Text())
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}
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} else {
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warn("unknown command: " + sc.Text())
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}
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}
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if sc.Err() != nil {
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fatal(sc.Err().Error())
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}
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}
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