+++ /dev/null
-/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * xscreensaver, Copyright (c) 2016 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 Daydream.
- *
- * Each Daydream 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 java.lang.Exception;
-import android.view.View;
-import android.view.Window;
-import android.view.WindowManager;
-import android.view.KeyEvent;
-import android.service.dreams.DreamService;
-import android.opengl.GLSurfaceView;
-import android.view.GestureDetector;
-import android.view.KeyEvent;
-import android.view.MotionEvent;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.os.Message;
-import android.os.Handler;
-import android.os.Looper;
-import android.app.AlertDialog;
-import android.content.DialogInterface;
-import android.util.Log;
-
-public class XScreenSaverDaydream extends DreamService
- implements GestureDetector.OnGestureListener,
- GestureDetector.OnDoubleTapListener,
- Handler.Callback {
-
- private GLSurfaceView glview;
- XScreenSaverRenderer renderer;
- private GestureDetector detector;
- boolean button_down_p;
- Bitmap screenshot;
-
- private void LOG (String fmt, Object... args) {
- Log.d ("xscreensaver",
- this.getClass().getSimpleName() + ": " +
- String.format (fmt, args));
- }
-
- protected XScreenSaverDaydream () {
- super();
- }
-
- // Called when jwxyz_abort() is called, or other exceptions are thrown.
- //
- public boolean handleMessage (Message msg) {
-
- String err = msg.obj.toString();
- LOG ("Caught exception: %s", err);
-
- this.finish(); // Exit the Daydream
-
- final AlertDialog.Builder b = new AlertDialog.Builder(this);
- b.setMessage (err);
- b.setCancelable (false);
- b.setPositiveButton ("Bummer",
- new DialogInterface.OnClickListener() {
- public void onClick(DialogInterface d, int id) {
- }
- });
-
- // #### This isn't working:
- // "Attempted to add window with non-application token"
- // "Unable to add window -- token null is not for an application"
- // I think I need to get an "Activity" to run it on somehow?
-
- new Handler (Looper.getMainLooper()).post (new Runnable() {
- public void run() {
- AlertDialog alert = b.create();
- alert.setTitle (this.getClass().getSimpleName() + " crashed");
- alert.setIcon(android.R.drawable.ic_dialog_alert);
- alert.show();
- }
- });
-
- return true;
- }
-
-
- @Override
- public void onAttachedToWindow() {
- super.onAttachedToWindow();
-
- setInteractive (true);
- setFullscreen (true);
- saveScreenshot();
-
- glview = new GLSurfaceView (this);
- renderer =
- new XScreenSaverRenderer (XScreenSaverRenderer.saverNameOf (this),
- getApplicationContext(), screenshot,
- this, glview);
- setContentView (glview);
-
- detector = new GestureDetector (this, this);
- }
-
- public void onDreamingStarted() {
- super.onDreamingStarted();
- }
-
- public void onDreamingStopped() {
- super.onDreamingStopped();
- glview.onPause();
- }
-
- public void onDetachedFromWindow() {
- super.onDetachedFromWindow();
- glview.onPause();
- }
-
-
- // At startup, before we have blanked the screen, save a screenshot
- // for later use by the hacks.
- //
- private void saveScreenshot() {
- View view = getWindow().getDecorView().getRootView();
- if (view == null) {
- LOG ("unable to get root view for screenshot");
- } else {
-
- // This doesn't work:
- /*
- boolean was = view.isDrawingCacheEnabled();
- if (!was) view.setDrawingCacheEnabled (true);
- view.buildDrawingCache();
- screenshot = view.getDrawingCache();
- if (!was) view.setDrawingCacheEnabled (false);
- if (screenshot == null) {
- LOG ("unable to get screenshot bitmap from %s", view.toString());
- } else {
- screenshot = Bitmap.createBitmap (screenshot);
- }
- */
-
- // This doesn't work either: width and height are both -1...
-
- int w = view.getLayoutParams().width;
- int h = view.getLayoutParams().height;
- if (w <= 0 || h <= 0) {
- LOG ("unable to get root view for screenshot");
- } else {
- screenshot = Bitmap.createBitmap (w, h, Bitmap.Config.ARGB_8888);
- Canvas c = new Canvas (screenshot);
- view.layout (0, 0, w, h);
- view.draw (c);
- }
- }
- }
-
-
-
- /* We distinguish between taps and drags.
-
- - Drags/pans (down, motion, up) are sent to the saver to handle.
- - Single-taps exit the saver.
- - Long-press single-taps are sent to the saver as ButtonPress/Release;
- - Double-taps are sent to the saver as a "Space" keypress.
-
- #### TODO:
- - Swipes (really, two-finger drags/pans) send Up/Down/Left/RightArrow.
- */
-
- @Override
- public boolean onSingleTapConfirmed (MotionEvent event) {
- this.finish(); // Exit the Daydream
- return true;
- }
-
- @Override
- public boolean onDoubleTap (MotionEvent event) {
- renderer.sendKeyEvent (new KeyEvent (KeyEvent.ACTION_DOWN,
- KeyEvent.KEYCODE_SPACE));
- return true;
- }
-
- @Override
- public void onLongPress (MotionEvent event) {
- if (! button_down_p) {
- int x = (int) event.getX (event.getPointerId (0));
- int y = (int) event.getY (event.getPointerId (0));
- renderer.sendButtonEvent (x, y, true);
- renderer.sendButtonEvent (x, y, false);
- }
- }
-
- @Override
- public void onShowPress (MotionEvent event) {
- if (! button_down_p) {
- button_down_p = true;
- int x = (int) event.getX (event.getPointerId (0));
- int y = (int) event.getY (event.getPointerId (0));
- renderer.sendButtonEvent (x, y, true);
- }
- }
-
- @Override
- public boolean onScroll (MotionEvent e1, MotionEvent e2,
- float distanceX, float distanceY) {
- if (button_down_p)
- renderer.sendMotionEvent ((int) e2.getX (e2.getPointerId (0)),
- (int) e2.getY (e2.getPointerId (0)));
- return true;
- }
-
- // If you drag too fast, you get a single onFling event instead of a
- // succession of onScroll events. I can't figure out how to disable it.
- @Override
- public boolean onFling (MotionEvent e1, MotionEvent e2,
- float velocityX, float velocityY) {
- return false;
- }
-
- public boolean dragEnded (MotionEvent event) {
- if (button_down_p) {
- int x = (int) event.getX (event.getPointerId (0));
- int y = (int) event.getY (event.getPointerId (0));
- renderer.sendButtonEvent (x, y, false);
- button_down_p = false;
- }
- return true;
- }
-
- @Override
- public boolean onDown (MotionEvent event) {
- return false;
- }
-
- @Override
- public boolean onSingleTapUp (MotionEvent event) {
- return false;
- }
-
- @Override
- public boolean onDoubleTapEvent (MotionEvent event) {
- return false;
- }
-
- @Override
- public boolean dispatchTouchEvent (MotionEvent event) {
- detector.onTouchEvent (event);
- if (event.getAction() == MotionEvent.ACTION_UP)
- dragEnded (event);
- return super.dispatchTouchEvent (event);
- }
-
- @Override
- public boolean dispatchKeyEvent (KeyEvent event) {
-
- // In the emulator, this doesn't receive keyboard arrow keys, PgUp, etc.
- // Some other keys like "Home" are interpreted before we get here, and
- // function keys do weird shit.
-
- super.dispatchKeyEvent (event);
- renderer.sendKeyEvent (event);
- return true;
- }
-
- // Dunno what dispatchKeyShortcutEvent does, but apparently nothing useful.
-
-}
projects / xscreensaver / blobdiff