chore: vendor clipboard into go package

packages/tui/clipboard/test_linux_nocgo.sh

@@ -0,0 +1,109 @@
+#!/bin/bash
+# Test script for Linux CGO-free clipboard implementation
+
+echo "Testing Linux clipboard implementation without CGO..."
+
+# Check for required tools
+echo "Checking for clipboard tools..."
+for tool in xclip xsel wl-copy; do
+    if command -v $tool &> /dev/null; then
+        echo "✓ $tool is installed"
+    else
+        echo "✗ $tool is not installed"
+    fi
+done
+
+# Create test program
+cat > test_linux_clipboard.go << 'EOF'
+package main
+
+import (
+    "fmt"
+    "log"
+    "os"
+    "golang.design/x/clipboard"
+)
+
+func main() {
+    err := clipboard.Init()
+    if err != nil {
+        log.Fatal("Failed to initialize clipboard:", err)
+    }
+    
+    // Test text
+    fmt.Println("\n=== Testing Text Clipboard ===")
+    testText := []byte("Hello from CGO-free Linux clipboard!")
+    clipboard.Write(clipboard.FmtText, testText)
+    fmt.Println("Wrote text:", string(testText))
+    
+    readText := clipboard.Read(clipboard.FmtText)
+    fmt.Println("Read text:", string(readText))
+    
+    if string(testText) == string(readText) {
+        fmt.Println("✓ Text clipboard test passed")
+    } else {
+        fmt.Println("✗ Text clipboard test failed")
+    }
+    
+    // Test empty write
+    fmt.Println("\n=== Testing Empty Write ===")
+    clipboard.Write(clipboard.FmtText, []byte{})
+    emptyRead := clipboard.Read(clipboard.FmtText)
+    if emptyRead == nil || len(emptyRead) == 0 {
+        fmt.Println("✓ Empty write test passed")
+    } else {
+        fmt.Println("✗ Empty write test failed, got:", string(emptyRead))
+    }
+    
+    // Test image if requested
+    if len(os.Args) > 1 && os.Args[1] == "image" {
+        fmt.Println("\n=== Testing Image Clipboard ===")
+        
+        // Try to read test image
+        imageData, err := os.ReadFile("tests/testdata/clipboard.png")
+        if err != nil {
+            fmt.Println("Could not read test image:", err)
+            return
+        }
+        
+        clipboard.Write(clipboard.FmtImage, imageData)
+        fmt.Println("Wrote image data, length:", len(imageData))
+        
+        readImage := clipboard.Read(clipboard.FmtImage)
+        if readImage != nil {
+            fmt.Println("Read image data, length:", len(readImage))
+            if len(imageData) == len(readImage) {
+                fmt.Println("✓ Image clipboard test passed")
+            } else {
+                fmt.Println("✗ Image lengths don't match")
+            }
+        } else {
+            fmt.Println("✗ Failed to read image from clipboard")
+        }
+        
+        // Test that reading text from image clipboard returns nil
+        textFromImage := clipboard.Read(clipboard.FmtText)
+        if textFromImage == nil {
+            fmt.Println("✓ Reading text from image clipboard correctly returned nil")
+        } else {
+            fmt.Println("✗ Reading text from image clipboard should return nil, got:", string(textFromImage))
+        }
+    }
+}
+EOF
+
+# Run tests with CGO disabled
+echo -e "\n=== Running with CGO_ENABLED=0 ==="
+CGO_ENABLED=0 go run test_linux_clipboard.go
+
+echo -e "\n=== Running with CGO_ENABLED=0 and image test ==="
+CGO_ENABLED=0 go run test_linux_clipboard.go image
+
+# Run actual tests
+echo -e "\n=== Running go test with CGO_ENABLED=0 ==="
+CGO_ENABLED=0 go test -v -run TestClipboard
+
+# Clean up
+rm -f test_linux_clipboard.go
+
+echo -e "\nTest script completed!"