Added downloads fragment

1 files changed, 121 insertions, 0 deletions

diff --git a/src/de/danoeh/antennapod/fragment/DownloadLogFragment.java b/src/de/danoeh/antennapod/fragment/DownloadLogFragment.java
new file mode 100644
index 000000000..d81ba4b86
--- /dev/null
+++ b/src/de/danoeh/antennapod/fragment/DownloadLogFragment.java
@@ -0,0 +1,121 @@
+package de.danoeh.antennapod.fragment;
+
+import android.content.Context;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.v4.app.ListFragment;
+import android.view.View;
+import de.danoeh.antennapod.adapter.DownloadLogAdapter;
+import de.danoeh.antennapod.feed.EventDistributor;
+import de.danoeh.antennapod.service.download.DownloadStatus;
+import de.danoeh.antennapod.storage.DBReader;
+
+import java.util.List;
+
+/**
+ * Shows the download log
+ */
+public class DownloadLogFragment extends ListFragment {
+
+    private List<DownloadStatus> downloadLog;
+    private DownloadLogAdapter adapter;
+
+    private boolean viewsCreated = false;
+    private boolean itemsLoaded = false;
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        EventDistributor.getInstance().register(contentUpdate);
+        startItemLoader();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        EventDistributor.getInstance().unregister(contentUpdate);
+        stopItemLoader();
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        viewsCreated = true;
+        if (itemsLoaded) {
+            onFragmentLoaded();
+        }
+    }
+
+    private void onFragmentLoaded() {
+        if (adapter == null) {
+            adapter = new DownloadLogAdapter(getActivity(), itemAccess);
+            setListAdapter(adapter);
+        }
+        setListShown(true);
+        adapter.notifyDataSetChanged();
+
+    }
+
+    private DownloadLogAdapter.ItemAccess itemAccess = new DownloadLogAdapter.ItemAccess() {
+
+        @Override
+        public int getCount() {
+            return (downloadLog != null) ? downloadLog.size() : 0;
+        }
+
+        @Override
+        public DownloadStatus getItem(int position) {
+            return (downloadLog != null) ? downloadLog.get(position) : null;
+        }
+    };
+
+    private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() {
+
+        @Override
+        public void update(EventDistributor eventDistributor, Integer arg) {
+            if ((arg & EventDistributor.DOWNLOADLOG_UPDATE) != 0) {
+                startItemLoader();
+            }
+        }
+    };
+
+    private ItemLoader itemLoader;
+
+    private void startItemLoader() {
+        if (itemLoader != null) {
+            itemLoader.cancel(true);
+        }
+        itemLoader = new ItemLoader();
+        itemLoader.execute();
+    }
+
+    private void stopItemLoader() {
+        if (itemLoader != null) {
+            itemLoader.cancel(true);
+        }
+    }
+
+    private class ItemLoader extends AsyncTask<Void, Void, List<DownloadStatus>> {
+
+        @Override
+        protected void onPostExecute(List<DownloadStatus> downloadStatuses) {
+            super.onPostExecute(downloadStatuses);
+            if (downloadStatuses != null) {
+                downloadLog = downloadStatuses;
+                itemsLoaded = true;
+                if (viewsCreated) {
+                    onFragmentLoaded();
+                }
+            }
+        }
+
+        @Override
+        protected List<DownloadStatus> doInBackground(Void... params) {
+            Context context = getActivity();
+            if (context != null) {
+                return DBReader.getDownloadLog(context);
+            }
+            return null;
+        }
+    }
+}