stub for clipboard menu items

diff --git a/src/jexer/EditMenuUser.java b/src/jexer/EditMenuUser.java
new file mode 100644 (file)
index 0000000..b6e7845
--- /dev/null
+++ b/src/jexer/EditMenuUser.java
@@ -0,0 +1,66 @@
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (C) 2019 Kevin Lamonte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer;
+
+/**
+ * EditMenuUser is used by TApplication to enable/disable edit menu items.  A
+ * widget that supports these functions should define an onCommand method
+ * that operates on cmCut, cmCopy, cmPaste, and cmClear.
+ */
+public interface EditMenuUser {
+
+    /**
+     * Check if cut to clipboard is supported.
+     *
+     * @return true if cut to clipboard is supported
+     */
+    public boolean isEditMenuCut();
+
+    /**
+     * Check if copy to clipboard is supported.
+     *
+     * @return true if copy to clipboard is supported
+     */
+    public boolean isEditMenuCopy();
+
+    /**
+     * Check if paste from clipboard is supported.
+     *
+     * @return true if paste from clipboard is supported
+     */
+    public boolean isEditMenuPaste();
+
+    /**
+     * Check if clear selection is supported.
+     *
+     * @return true if clear selection is supported
+     */
+    public boolean isEditMenuClear();
+
+}