1 files changed, 147 insertions, 0 deletions
diff --git a/java/org/gnu/emacs/EmacsSdk8Clipboard.java b/java/org/gnu/emacs/EmacsSdk8Clipboard.java
new file mode 100644
index 00000000000..418f55c12c1
--- /dev/null
+++ b/java/org/gnu/emacs/EmacsSdk8Clipboard.java
@@ -0,0 +1,147 @@
+/* Communication module for Android terminals.  -*- c-file-style: "GNU" -*-
+
+Copyright (C) 2023-2024 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
+
+package org.gnu.emacs;
+
+/* Importing the entire package instead of just the legacy
+   ClipboardManager class avoids the deprecation warning.  */
+
+import android.text.*;
+
+import android.content.Context;
+import android.util.Log;
+
+import java.io.UnsupportedEncodingException;
+
+/* This class implements EmacsClipboard for Android 2.2 and other
+   similarly old systems.  */
+
+@SuppressWarnings ("deprecation")
+public final class EmacsSdk8Clipboard extends EmacsClipboard
+{
+  private static final String TAG = "EmacsSdk8Clipboard";
+  private ClipboardManager manager;
+
+  public
+  EmacsSdk8Clipboard ()
+  {
+    String what;
+    Context context;
+
+    what = Context.CLIPBOARD_SERVICE;
+    context = EmacsService.SERVICE;
+    manager
+      = (ClipboardManager) context.getSystemService (what);
+  }
+
+  /* Set the clipboard text to CLIPBOARD, a string in UTF-8
+     encoding.  */
+
+  @Override
+  public void
+  setClipboard (byte[] bytes)
+  {
+    try
+      {
+	manager.setText (new String (bytes, "UTF-8"));
+      }
+    catch (UnsupportedEncodingException exception)
+      {
+	Log.w (TAG, "setClipboard: " + exception);
+      }
+  }
+
+  /* Return whether or not Emacs owns the clipboard.  Value is 1 if
+     Emacs does, 0 if Emacs does not, and -1 if that information is
+     unavailable.  */
+
+  @Override
+  public int
+  ownsClipboard ()
+  {
+    return -1;
+  }
+
+  /* Return whether or not clipboard content currently exists.  */
+
+  @Override
+  public boolean
+  clipboardExists ()
+  {
+    return manager.hasText ();
+  }
+
+  /* Return the current content of the clipboard, as plain text, or
+     NULL if no content is available.  */
+
+  @Override
+  public byte[]
+  getClipboard ()
+  {
+    String string;
+    CharSequence text;
+
+    text = manager.getText ();
+
+    if (text == null)
+      return null;
+
+    string = text.toString ();
+
+    try
+      {
+	return string.getBytes ("UTF-8");
+      }
+    catch (UnsupportedEncodingException exception)
+      {
+	Log.w (TAG, "getClipboard: " + exception);
+      }
+
+    return null;
+  }
+
+  /* Return an array of targets currently provided by the
+     clipboard, or NULL if there are none.  */
+
+  @Override
+  public byte[][]
+  getClipboardTargets ()
+  {
+    return null;
+  }
+
+  /* Return the clipboard data for the given target, or NULL if it
+     does not exist.
+
+     Value is normally an array of three longs: the file descriptor,
+     the start offset of the data, and its length; length may be
+     AssetFileDescriptor.UNKOWN_LENGTH, meaning that the data extends
+     from that offset to the end of the file.
+
+     Do not use this function to open text targets; use `getClipboard'
+     for that instead, as it will handle selection data consisting
+     solely of a URI.  */
+
+  @Override
+  public long[]
+  getClipboardData (byte[] target)
+  {
+    return null;
+  }
+};