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Allow clearing the clipboard instantly; improve code sharing between platforms; facilitate GUI/TUI client development regarding the clipboard

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This commit is contained in:
RandyTheSilly
2024-12-21 15:31:14 -05:00
parent 9ed7b8ad9b
commit 3b57d59ddc
10 changed files with 117 additions and 128 deletions
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core/copyUNIXGeneric.go
+13 -42
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@@ -6,68 +6,39 @@ import (
"fmt"
"os"
"os/exec"
"strings"
"time"
)
// copyString copies a string to the clipboard.
func copyString(continuous bool, copySubject string) {
var envSet bool // track whether environment variables are set
var cmd *exec.Cmd
var envSet, isWayland bool // track whether environment variables are set
var cmdCopy *exec.Cmd
// determine whether to use wl-copy (Wayland) or xclip (X11)
if _, envSet = os.LookupEnv("WAYLAND_DISPLAY"); envSet {
cmd = exec.Command("wl-copy", "-t", "text/plain")
cmdCopy = exec.Command("wl-copy", "-t", "text/plain")
isWayland = true
} else if _, envSet = os.LookupEnv("DISPLAY"); envSet {
cmd = exec.Command("xclip", "-sel", "c", "-t", "text/plain")
cmdCopy = exec.Command("xclip", "-sel", "c", "-t", "text/plain")
} else {
fmt.Println(AnsiError + "Clipboard platform could not be determined - Note that the clipboard does not function in a raw TTY" + AnsiReset)
os.Exit(ErrorClipboard)
}
writeToStdin(cmd, copySubject)
err := cmd.Run()
writeToStdin(cmdCopy, copySubject)
err := cmdCopy.Run()
if err != nil {
fmt.Println(AnsiError+"Failed to copy to clipboard:", err.Error()+AnsiReset)
os.Exit(ErrorClipboard)
}
if !continuous {
launchClipClear(copySubject)
launchClipClearProcess(copySubject, isWayland)
}
}
// clipClear is called in a separate process to clear the clipboard after 30 seconds.
func clipClear(oldContents string) {
time.Sleep(30 * time.Second)
// determine clipboard tool to use (wl-clipboard VS xclip)
var envSet bool
var cmdClear, cmdPaste *exec.Cmd
if _, envSet = os.LookupEnv("WAYLAND_DISPLAY"); envSet {
cmdClear = exec.Command("wl-copy", "-c")
cmdPaste = exec.Command("wl-paste")
} else if _, envSet = os.LookupEnv("DISPLAY"); envSet {
cmdClear = exec.Command("xclip", "-i", "/dev/null", "-sel", "c")
cmdPaste = exec.Command("xclip", "-o", "-sel", "c")
} else {
fmt.Println(AnsiError + "Clipboard platform could not be determined - Neither $WAYLAND_DISPLAY nor $DISPLAY are set" + AnsiReset)
os.Exit(ErrorClipboard)
// getClipCommands returns the commands for pasting and clearing the clipboard contents.
func getClipCommands() (*exec.Cmd, *exec.Cmd) {
if os.Args[2] == "true" { // wayland
return exec.Command("wl-paste"), exec.Command("wl-copy", "-c")
}
// read current clipboard contents
newContents, err := cmdPaste.Output()
if err != nil {
fmt.Println(AnsiError+"Failed to read clipboard contents:", err.Error()+AnsiReset)
os.Exit(ErrorClipboard)
}
// clear clipboard if contents have not been modified
if oldContents == strings.TrimRight(string(newContents), "\r\n") {
err = cmdClear.Run()
if err != nil {
fmt.Println(AnsiError+"Failed to clear clipboard:", err.Error()+AnsiReset)
os.Exit(ErrorClipboard)
}
}
Exit(0)
return exec.Command("xclip", "-o", "-sel", "c"), exec.Command("xclip", "-i", "/dev/null", "-sel", "c")
}