1 files changed, 67 insertions, 0 deletions
diff --git a/src/github/daneren2005/dsub/util/TabBackgroundTask.java b/src/github/daneren2005/dsub/util/TabBackgroundTask.java
new file mode 100644
index 00000000..c345b982
--- /dev/null
+++ b/src/github/daneren2005/dsub/util/TabBackgroundTask.java
@@ -0,0 +1,67 @@
+package github.daneren2005.dsub.util;
+
+import github.daneren2005.dsub.fragments.SubsonicFragment;
+
+/**
+ * @author Sindre Mehus
+ * @version $Id$
+ */
+public abstract class TabBackgroundTask<T> extends BackgroundTask<T> {
+
+    private final SubsonicFragment tabFragment;
+
+    public TabBackgroundTask(SubsonicFragment fragment) {
+        super(fragment.getActivity());
+        tabFragment = fragment;
+    }
+
+    @Override
+    public void execute() {
+        tabFragment.setProgressVisible(true);
+
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    final T result = doInBackground();
+                    if (isCancelled()) {
+                        return;
+                    }
+
+                    getHandler().post(new Runnable() {
+                        @Override
+                        public void run() {
+                            tabFragment.setProgressVisible(false);
+                            done(result);
+                        }
+                    });
+                } catch (final Throwable t) {
+                    if (isCancelled()) {
+                        return;
+                    }
+                    getHandler().post(new Runnable() {
+                        @Override
+                        public void run() {
+                            tabFragment.setProgressVisible(false);
+                            error(t);
+                        }
+                    });
+                }
+            }
+        }.start();
+    }
+
+    private boolean isCancelled() {
+        return !tabFragment.isAdded();
+    }
+
+    @Override
+    public void updateProgress(final String message) {
+        getHandler().post(new Runnable() {
+            @Override
+            public void run() {
+                tabFragment.updateProgress(message);
+            }
+        });
+    }
+}