Moved description webview to fragment

1 files changed, 144 insertions, 0 deletions

diff --git a/src/de/podfetcher/fragment/ItemDescriptionFragment.java b/src/de/podfetcher/fragment/ItemDescriptionFragment.java
new file mode 100644
index 000000000..0c4f4f9b0
--- /dev/null
+++ b/src/de/podfetcher/fragment/ItemDescriptionFragment.java
@@ -0,0 +1,144 @@
+package de.podfetcher.fragment;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
+import org.apache.commons.lang3.StringEscapeUtils;
+
+import android.app.Activity;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.webkit.WebView;
+
+import com.actionbarsherlock.app.SherlockFragment;
+
+import de.podfetcher.feed.Feed;
+import de.podfetcher.feed.FeedItem;
+import de.podfetcher.feed.FeedManager;
+
+/** Displays the description of a FeedItem in a Webview. */
+public class ItemDescriptionFragment extends SherlockFragment {
+	
+	private static final String TAG = "ItemDescriptionFragment";
+	private static final String ARG_FEED_ID = "arg.feedId";
+	private static final String ARG_FEEDITEM_ID = "arg.feedItemId";
+	
+	private WebView webvDescription;
+	private FeedItem item;
+	
+	private AsyncTask<Void, Void, Void> webViewLoader;
+	
+	public static ItemDescriptionFragment newInstance(FeedItem item) {
+		ItemDescriptionFragment f = new ItemDescriptionFragment();
+		Bundle args = new Bundle();
+		args.putLong(ARG_FEED_ID, item.getFeed().getId());
+		args.putLong(ARG_FEEDITEM_ID, item.getId());
+		f.setArguments(args);
+		return f;
+	}
+	
+	@Override
+	public View onCreateView(LayoutInflater inflater, ViewGroup container,
+			Bundle savedInstanceState) {
+		webvDescription = new WebView(getActivity());
+		return webvDescription;
+	}
+
+	
+	@Override
+	public void onAttach(Activity activity) {
+		super.onAttach(activity);
+		if (webViewLoader == null) {
+			webViewLoader = createLoader();
+			webViewLoader.execute();
+		}
+	}
+
+	@Override
+	public void onDetach() {
+		super.onDetach();
+		if (webViewLoader != null) {
+			webViewLoader.cancel(true);
+		}
+	}
+	
+	@Override
+	public void onDestroy() {
+		super.onDestroy();
+		if (webViewLoader != null) {
+			webViewLoader.cancel(true);
+		}
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		FeedManager manager = FeedManager.getInstance();
+		Bundle args = getArguments();
+		long feedId = args.getLong(ARG_FEED_ID, -1);
+		long itemId = args.getLong(ARG_FEEDITEM_ID, -1);
+		if (feedId != -1 && itemId != -1) {
+			Feed feed = manager.getFeed(feedId);
+			item = manager.getFeedItem(itemId, feed);
+		} else {
+			Log.e(TAG, TAG + " was called with invalid arguments");
+		}
+	
+	}
+	
+	private AsyncTask<Void, Void, Void> createLoader() {
+		return new AsyncTask<Void, Void, Void>() {
+			@Override
+			protected void onCancelled() {
+				super.onCancelled();
+				getSherlockActivity().setSupportProgressBarIndeterminateVisibility(false);
+				webViewLoader = null;
+			}
+
+			String url;
+			
+			@Override
+			protected void onPostExecute(Void result) {
+				super.onPostExecute(result);
+				webvDescription.loadData(url, "text/html", "utf-8");
+				getSherlockActivity().setSupportProgressBarIndeterminateVisibility(false);
+				Log.d(TAG, "Webview loaded");
+				webViewLoader = null;
+			}
+
+			@Override
+			protected void onPreExecute() {
+				super.onPreExecute();
+				getSherlockActivity().setSupportProgressBarIndeterminateVisibility(true);
+			}
+
+			@Override
+			protected Void doInBackground(Void... params) {
+				Log.d(TAG, "Loading Webview");
+				url = "";
+				try {
+					if (item.getContentEncoded() == null) {
+						url = URLEncoder.encode(item.getDescription(), "utf-8")
+								.replaceAll("\\+", " ");
+					} else {
+						url = URLEncoder.encode(
+								StringEscapeUtils.unescapeHtml4(item
+										.getContentEncoded()), "utf-8").replaceAll(
+								"\\+", " ");
+					}
+
+				} catch (UnsupportedEncodingException e) {
+					url = "Page could not be loaded";
+					e.printStackTrace();
+				}		
+					
+				return null;
+			}
+
+		};
+	}
+}