| 1 | package be.nikiroo.fanfix_swing.gui.utils; |
| 2 | |
| 3 | import java.util.HashMap; |
| 4 | import java.util.LinkedList; |
| 5 | import java.util.List; |
| 6 | import java.util.Map; |
| 7 | |
| 8 | import javax.swing.SwingWorker; |
| 9 | |
| 10 | @SuppressWarnings("rawtypes") |
| 11 | public class DelayWorker { |
| 12 | private Map<String, SwingWorker> lazyEnCours; |
| 13 | private Object lazyEnCoursLock; |
| 14 | |
| 15 | private Object waiter; |
| 16 | |
| 17 | private boolean cont; |
| 18 | private boolean paused; |
| 19 | private Thread loop; |
| 20 | |
| 21 | public DelayWorker(final int delayMs) { |
| 22 | lazyEnCours = new HashMap<String, SwingWorker>(); |
| 23 | lazyEnCoursLock = new Object(); |
| 24 | waiter = new Object(); |
| 25 | cont = true; |
| 26 | paused = false; |
| 27 | |
| 28 | loop = new Thread(new Runnable() { |
| 29 | @Override |
| 30 | public void run() { |
| 31 | while (cont) { |
| 32 | try { |
| 33 | Thread.sleep(delayMs); |
| 34 | } catch (InterruptedException e) { |
| 35 | } |
| 36 | |
| 37 | List<SwingWorker> workers; |
| 38 | synchronized (lazyEnCoursLock) { |
| 39 | workers = new LinkedList<SwingWorker>( |
| 40 | lazyEnCours.values()); |
| 41 | lazyEnCours.clear(); |
| 42 | } |
| 43 | for (SwingWorker worker : workers) { |
| 44 | worker.execute(); |
| 45 | } |
| 46 | |
| 47 | synchronized (waiter) { |
| 48 | do { |
| 49 | try { |
| 50 | if (cont) |
| 51 | waiter.wait(); |
| 52 | } catch (InterruptedException e) { |
| 53 | } |
| 54 | } while (cont && paused); |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | }); |
| 59 | loop.setDaemon(true); |
| 60 | loop.setName("Loop for DelayWorker"); |
| 61 | } |
| 62 | |
| 63 | // twice = not legal |
| 64 | public void start() { |
| 65 | loop.start(); |
| 66 | } |
| 67 | |
| 68 | public void pause() { |
| 69 | paused = true; |
| 70 | } |
| 71 | |
| 72 | public boolean isPaused() { |
| 73 | return paused; |
| 74 | } |
| 75 | |
| 76 | public void resume() { |
| 77 | synchronized (waiter) { |
| 78 | paused = false; |
| 79 | wakeup(); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | public void stop() { |
| 84 | synchronized (waiter) { |
| 85 | cont = false; |
| 86 | wakeup(); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | public void clear() { |
| 91 | synchronized (lazyEnCoursLock) { |
| 92 | lazyEnCours.clear(); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | public <T, V> void delay(final String id, final SwingWorker<T, V> worker) { |
| 97 | synchronized (lazyEnCoursLock) { |
| 98 | lazyEnCours.put(id, worker); |
| 99 | } |
| 100 | |
| 101 | wakeup(); |
| 102 | } |
| 103 | |
| 104 | private void wakeup() { |
| 105 | synchronized (waiter) { |
| 106 | waiter.notifyAll(); |
| 107 | } |
| 108 | } |
| 109 | } |