Adaptation of the CoolViewer patch that allows Linux users to paste by middle-clicking.

indra/llwindow/llwindowsdl.cpp

@@ -1282,6 +1282,49 @@ BOOL LLWindowSDL::copyTextToClipboard(const LLWString &text)
 	return FALSE; // failure
 }
 
+
+BOOL LLWindowSDL::isPrimaryTextAvailable()
+{
+	if (ll_try_gtk_init())
+	{
+		GtkClipboard * const clipboard =
+			gtk_clipboard_get(GDK_SELECTION_PRIMARY);
+		return gtk_clipboard_wait_is_text_available(clipboard) ?
+			TRUE : FALSE;
+	}
+	return FALSE; // failure
+}
+
+BOOL LLWindowSDL::pasteTextFromPrimary(LLWString &text)
+{
+	if (ll_try_gtk_init())
+	{
+		GtkClipboard * const clipboard =
+			gtk_clipboard_get(GDK_SELECTION_PRIMARY);
+		gchar * const data = gtk_clipboard_wait_for_text(clipboard);
+		if (data)
+		{
+			text = LLWString(utf8str_to_wstring(data));
+			g_free(data);
+			return TRUE;
+		}
+	}
+	return FALSE; // failure
+}
+
+BOOL LLWindowSDL::copyTextToPrimary(const LLWString &text)
+{
+	if (ll_try_gtk_init())
+	{
+		const std::string utf8 = wstring_to_utf8str(text);
+		GtkClipboard * const clipboard =
+			gtk_clipboard_get(GDK_SELECTION_PRIMARY);
+		gtk_clipboard_set_text(clipboard, utf8.c_str(), utf8.length());
+		return TRUE;
+	}
+	return FALSE; // failure
+}
+
 #else
 
 BOOL LLWindowSDL::isClipboardTextAvailable()
@@ -1298,6 +1341,22 @@ BOOL LLWindowSDL::copyTextToClipboard(const LLWString &s)
 {
 	return FALSE;  // unsupported
 }
+
+BOOL LLWindowSDL::isPrimaryTextAvailable()
+{
+	return FALSE; // unsupported
+}
+
+BOOL LLWindowSDL::pasteTextFromPrimary(LLWString &dst)
+{
+	return FALSE; // unsupported
+}
+
+BOOL LLWindowSDL::copyTextToPrimary(const LLWString &s)
+{
+	return FALSE; // unsupported
+}
+
 #endif // LL_GTK
 
 LLWindow::LLWindowResolution* LLWindowSDL::getSupportedResolutions(S32 &num_resolutions)