Added subscribe button to online feed view

2 files changed, 108 insertions, 1 deletions

diff --git a/src/de/danoeh/antennapod/activity/DefaultOnlineFeedViewActivity.java b/src/de/danoeh/antennapod/activity/DefaultOnlineFeedViewActivity.java
index c72c777c1..0aa4c55c5 100644
--- a/src/de/danoeh/antennapod/activity/DefaultOnlineFeedViewActivity.java
+++ b/src/de/danoeh/antennapod/activity/DefaultOnlineFeedViewActivity.java
@@ -1,26 +1,50 @@
 package de.danoeh.antennapod.activity;
 
 import android.content.Context;
+import android.os.AsyncTask;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.TextView;
 import de.danoeh.antennapod.R;
 import de.danoeh.antennapod.adapter.FeedItemlistDescriptionAdapter;
 import de.danoeh.antennapod.asynctask.ImageDiskCache;
+import de.danoeh.antennapod.dialog.DownloadRequestErrorDialogCreator;
+import de.danoeh.antennapod.feed.EventDistributor;
 import de.danoeh.antennapod.feed.Feed;
+import de.danoeh.antennapod.storage.DBReader;
+import de.danoeh.antennapod.storage.DownloadRequestException;
+import de.danoeh.antennapod.storage.DownloadRequester;
+
+import java.util.Date;
+import java.util.List;
 
 /**
  * Created by daniel on 24.08.13.
  */
 public class DefaultOnlineFeedViewActivity extends OnlineFeedViewActivity {
 
+    private static final int EVENTS = EventDistributor.DOWNLOAD_HANDLED | EventDistributor.DOWNLOAD_QUEUED | EventDistributor.FEED_LIST_UPDATE;
+    private volatile List<Feed> feeds;
+    private Feed feed;
+
+    private Button subscribeButton;
+
     @Override
-    protected void showFeedInformation(Feed feed) {
+    protected void loadData() {
+        super.loadData();
+        feeds = DBReader.getFeedList(this);
+    }
+
+    @Override
+    protected void showFeedInformation(final Feed feed) {
         super.showFeedInformation(feed);
         setContentView(R.layout.listview_activity);
 
+        this.feed = feed;
+        EventDistributor.getInstance().register(listener);
         ListView listView = (ListView) findViewById(R.id.listview);
         LayoutInflater inflater = (LayoutInflater)
                 getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@@ -31,16 +55,91 @@ public class DefaultOnlineFeedViewActivity extends OnlineFeedViewActivity {
 
         ImageView cover = (ImageView) header.findViewById(R.id.imgvCover);
         TextView title = (TextView) header.findViewById(R.id.txtvTitle);
+        TextView author = (TextView) header.findViewById(R.id.txtvAuthor);
         TextView description = (TextView) header.findViewById(R.id.txtvDescription);
+        subscribeButton = (Button) header.findViewById(R.id.butSubscribe);
 
         if (feed.getImage() != null) {
             ImageDiskCache.getDefaultInstance().loadThumbnailBitmap(feed.getImage().getDownload_url(), cover, (int) getResources().getDimension(
                     R.dimen.thumbnail_length));
         }
         title.setText(feed.getTitle());
+        author.setText(feed.getAuthor());
         description.setText(feed.getDescription());
 
+        subscribeButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                try {
+                    DownloadRequester.getInstance().downloadFeed(
+                            DefaultOnlineFeedViewActivity.this,
+                            new Feed(feed.getDownload_url(), new Date(), feed
+                                    .getTitle()));
+                } catch (DownloadRequestException e) {
+                    e.printStackTrace();
+                    DownloadRequestErrorDialogCreator.newRequestErrorDialog(DefaultOnlineFeedViewActivity.this,
+                            e.getMessage());
+                }
+                setSubscribeButtonState(feed);
+            }
+        });
+        setSubscribeButtonState(feed);
+
+    }
+
+    private boolean feedInFeedlist(Feed feed) {
+        if (feeds == null || feed == null)
+            return false;
+        for (Feed f : feeds) {
+            if (f.getIdentifyingValue().equals(feed.getIdentifyingValue())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private void setSubscribeButtonState(Feed feed) {
+        if (subscribeButton != null && feed != null) {
+            if (DownloadRequester.getInstance().isDownloadingFile(feed.getDownload_url())) {
+                subscribeButton.setEnabled(false);
+                subscribeButton.setText(R.string.downloading_label);
+            } else if (feedInFeedlist(feed)) {
+                subscribeButton.setEnabled(false);
+                subscribeButton.setText(R.string.subscribed_label);
+            } else {
+                subscribeButton.setEnabled(true);
+                subscribeButton.setText(R.string.subscribe_label);
+            }
+        }
+    }
 
+    EventDistributor.EventListener listener = new EventDistributor.EventListener() {
+        @Override
+        public void update(EventDistributor eventDistributor, Integer arg) {
+            if ((arg & EventDistributor.FEED_LIST_UPDATE) != 0) {
+                new AsyncTask<Void, Void, List<Feed>>() {
+                    @Override
+                    protected List<Feed> doInBackground(Void... params) {
+                        return DBReader.getFeedList(DefaultOnlineFeedViewActivity.this);
+                    }
+
+                    @Override
+                    protected void onPostExecute(List<Feed> feeds) {
+                        super.onPostExecute(feeds);
+                        DefaultOnlineFeedViewActivity.this.feeds = feeds;
+                        setSubscribeButtonState(feed);
+                    }
+                }.execute();
+            } else if ((arg & EVENTS) != 0) {
+                setSubscribeButtonState(feed);
+            }
+        }
+    };
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        EventDistributor.getInstance().unregister(listener);
     }
 }
 
diff --git a/src/de/danoeh/antennapod/activity/OnlineFeedViewActivity.java b/src/de/danoeh/antennapod/activity/OnlineFeedViewActivity.java
index ff2e4987e..84aa2d26b 100644
--- a/src/de/danoeh/antennapod/activity/OnlineFeedViewActivity.java
+++ b/src/de/danoeh/antennapod/activity/OnlineFeedViewActivity.java
@@ -129,6 +129,7 @@ public abstract class OnlineFeedViewActivity extends ActionBarActivity {
         new Thread() {
             @Override
             public void run() {
+                loadData();
                 downloader.call();
                 onDownloadCompleted(downloader);
             }
@@ -219,6 +220,13 @@ public abstract class OnlineFeedViewActivity extends ActionBarActivity {
     }
 
     /**
+     * Can be used to load data asynchronously.
+     * */
+    protected void loadData() {
+
+    }
+
+    /**
      * Called when feed parsed successfully
      */
     protected void showFeedInformation(Feed feed) {