[v3] move linux clipboard logic to linux_cgo

v3/pkg/application/clipboard_linux.go

@@ -2,29 +2,8 @@
 
 package application
 
-/*
-#cgo linux pkg-config: gtk+-3.0 webkit2gtk-4.0
-
-#include "gtk/gtk.h"
-#include "webkit2/webkit2.h"
-
-static gchar* getClipboardText() {
-	GtkClipboard *clip = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
-	return gtk_clipboard_wait_for_text(clip);
-}
-
-static void setClipboardText(gchar* text) {
-	GtkClipboard *clip = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
-	gtk_clipboard_set_text(clip, text, -1);
-
-	clip = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
-	gtk_clipboard_set_text(clip, text, -1);
-}
-*/
-import "C"
 import (
 	"sync"
-	"unsafe"
 )
 
 var clipboardLock sync.RWMutex
@@ -34,18 +13,14 @@ type linuxClipboard struct{}
 func (m linuxClipboard) setText(text string) bool {
 	clipboardLock.Lock()
 	defer clipboardLock.Unlock()
-	cText := C.CString(text)
-	C.setClipboardText(cText)
-	C.free(unsafe.Pointer(cText))
+	clipboardSet(text)
 	return true
 }
 
 func (m linuxClipboard) text() (string, bool) {
 	clipboardLock.RLock()
 	defer clipboardLock.RUnlock()
-	clipboardText := C.getClipboardText()
-	result := C.GoString(clipboardText)
-	return result, true
+	return clipboardGet(), true
 }
 
 func newClipboardImpl() *linuxClipboard {

v3/pkg/application/linux_cgo.go

@@ -273,6 +273,23 @@ func showAllWindows(application pointer) {
 	}
 }
 
+// Clipboard
+func clipboardGet() string {
+	clip := C.gtk_clipboard_get(C.GDK_SELECTION_CLIPBOARD)
+	text := C.gtk_clipboard_wait_for_text(clip)
+	return C.GoString(text)
+}
+
+func clipboardSet(text string) {
+	cText := C.CString(text)
+	clip := C.gtk_clipboard_get(C.GDK_SELECTION_CLIPBOARD)
+	C.gtk_clipboard_set_text(clip, cText, -1)
+
+	clip = C.gtk_clipboard_get(C.GDK_SELECTION_PRIMARY)
+	C.gtk_clipboard_set_text(clip, cText, -1)
+	C.free(unsafe.Pointer(cText))
+}
+
 // Menu
 func menuAddSeparator(menu *Menu) {
 	C.gtk_menu_shell_append(