clipboard.go RawHistoryFolder

1package clipboard
2
3import (
4	"fmt"
5	"os/exec"
6)
7
8// CopyToClipboard copies the given text to the system clipboard.
9// It tries wl-copy first (Wayland), then falls back to xclip (X11).
10// Returns an error if both fail.
11func CopyToClipboard(text string) error {
12	if text == "" {
13		return fmt.Errorf("cannot copy empty text to clipboard")
14	}
15
16	// Try wl-copy first (Wayland)
17	if err := tryWlCopy(text); err == nil {
18		return nil
19	}
20
21	// Fallback to xclip (X11)
22	if err := tryXclip(text); err == nil {
23		return nil
24	}
25
26	return fmt.Errorf("clipboard copy failed: neither wl-copy nor xclip available")
27}
28
29// tryWlCopy attempts to copy text using wl-copy (Wayland clipboard)
30func tryWlCopy(text string) error {
31	cmd := exec.Command("wl-copy")
32	cmd.Stdin = nil
33	
34	// Set up stdin pipe to pass the text
35	stdin, err := cmd.StdinPipe()
36	if err != nil {
37		return fmt.Errorf("failed to create stdin pipe for wl-copy: %w", err)
38	}
39
40	// Start the command
41	if err := cmd.Start(); err != nil {
42		stdin.Close()
43		return fmt.Errorf("failed to start wl-copy: %w", err)
44	}
45
46	// Write text to stdin and close it
47	_, writeErr := stdin.Write([]byte(text))
48	closeErr := stdin.Close()
49
50	// Wait for command to complete
51	waitErr := cmd.Wait()
52
53	// Return the first error encountered
54	if writeErr != nil {
55		return fmt.Errorf("failed to write to wl-copy stdin: %w", writeErr)
56	}
57	if closeErr != nil {
58		return fmt.Errorf("failed to close wl-copy stdin: %w", closeErr)
59	}
60	if waitErr != nil {
61		return fmt.Errorf("wl-copy command failed: %w", waitErr)
62	}
63
64	return nil
65}
66
67// tryXclip attempts to copy text using xclip (X11 clipboard)
68func tryXclip(text string) error {
69	cmd := exec.Command("xclip", "-selection", "clipboard")
70	
71	// Set up stdin pipe to pass the text
72	stdin, err := cmd.StdinPipe()
73	if err != nil {
74		return fmt.Errorf("failed to create stdin pipe for xclip: %w", err)
75	}
76
77	// Start the command
78	if err := cmd.Start(); err != nil {
79		stdin.Close()
80		return fmt.Errorf("failed to start xclip: %w", err)
81	}
82
83	// Write text to stdin and close it
84	_, writeErr := stdin.Write([]byte(text))
85	closeErr := stdin.Close()
86
87	// Wait for command to complete
88	waitErr := cmd.Wait()
89
90	// Return the first error encountered
91	if writeErr != nil {
92		return fmt.Errorf("failed to write to xclip stdin: %w", writeErr)
93	}
94	if closeErr != nil {
95		return fmt.Errorf("failed to close xclip stdin: %w", closeErr)
96	}
97	if waitErr != nil {
98		return fmt.Errorf("xclip command failed: %w", waitErr)
99	}
100
101	return nil
102}
103
104// IsAvailable checks if clipboard functionality is available on the system
105func IsAvailable() bool {
106	// Check if wl-copy is available
107	if _, err := exec.LookPath("wl-copy"); err == nil {
108		return true
109	}
110	
111	// Check if xclip is available
112	if _, err := exec.LookPath("xclip"); err == nil {
113		return true
114	}
115	
116	return false
117}