--- /dev/null
+/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * xscreensaver, Copyright (c) 2016-2017 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * The superclass of every saver's Wallpaper.
+ *
+ * Each Wallpaper needs a distinct subclass in order to show up in the list.
+ * We know which saver we are running by the subclass name; we know which
+ * API to use by how the subclass calls super().
+ */
+
+package org.jwz.xscreensaver;
+
+import android.service.wallpaper.WallpaperService;
+import android.view.GestureDetector;
+import android.view.SurfaceHolder;
+import android.util.Log;
+import java.lang.RuntimeException;
+import java.lang.Thread;
+import org.jwz.xscreensaver.jwxyz;
+
+public class XScreenSaverWallpaper extends WallpaperService
+/*implements GestureDetector.OnGestureListener,
+ GestureDetector.OnDoubleTapListener, */ {
+
+ /* TODO: Input! */
+
+ @Override
+ public Engine onCreateEngine() {
+ // Log.d("xscreensaver", "tid = " + Thread.currentThread().getId());
+ return new XScreenSaverGLEngine();
+ }
+
+ class XScreenSaverGLEngine extends Engine {
+
+ private boolean initTried = false;
+ private jwxyz jwxyz_obj;
+
+ @Override
+ public void onSurfaceCreated (SurfaceHolder holder) {
+ super.onSurfaceCreated(holder);
+
+ if (!initTried) {
+ initTried = true;
+ } else {
+ if (jwxyz_obj != null) {
+ jwxyz_obj.close();
+ jwxyz_obj = null;
+ }
+ }
+ }
+
+ @Override
+ public void onVisibilityChanged(final boolean visible) {
+ if (jwxyz_obj != null) {
+ if (visible)
+ jwxyz_obj.start();
+ else
+ jwxyz_obj.pause();
+ }
+ }
+
+ @Override
+ public void onSurfaceChanged (SurfaceHolder holder, int format,
+ int width, int height) {
+
+ super.onSurfaceChanged(holder, format, width, height);
+
+ if (width == 0 || height == 0) {
+ jwxyz_obj.close();
+ jwxyz_obj = null;
+ }
+
+ Log.d ("xscreensaver",
+ String.format("surfaceChanged: %dx%d", width, height));
+
+ if (jwxyz_obj == null) {
+ jwxyz_obj = new jwxyz (jwxyz.saverNameOf(XScreenSaverWallpaper.this),
+ XScreenSaverWallpaper.this, null,
+ width, height, holder.getSurface(), null);
+ } else {
+ jwxyz_obj.resize (width, height);
+ }
+
+ jwxyz_obj.start();
+ }
+
+ @Override
+ public void onSurfaceDestroyed (SurfaceHolder holder) {
+ super.onSurfaceDestroyed (holder);
+
+ if (jwxyz_obj != null) {
+ jwxyz_obj.close();
+ jwxyz_obj = null;
+ }
+ }
+ }
+}