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package de.danoeh.antennapod.fragment;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import org.apache.commons.lang3.StringEscapeUtils;
import android.annotation.SuppressLint;
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.danoeh.antennapod.BuildConfig;
import de.danoeh.antennapod.feed.Feed;
import de.danoeh.antennapod.feed.FeedItem;
import de.danoeh.antennapod.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 static final String ARG_SCROLLBAR_ENABLED = "arg.scrollbarEnabled";
private static final String WEBVIEW_STYLE = "<head><style type=\"text/css\"> * { font-family: Helvetica; line-height: 1.5em; font-size: 12pt; } a { font-style: normal; text-decoration: none; font-weight: normal; color: #00A8DF; }</style></head>";
private boolean scrollbarEnabled;
private WebView webvDescription;
private FeedItem item;
private AsyncTask<Void, Void, Void> webViewLoader;
public static ItemDescriptionFragment newInstance(FeedItem item,
boolean scrollbarEnabled) {
ItemDescriptionFragment f = new ItemDescriptionFragment();
Bundle args = new Bundle();
args.putLong(ARG_FEED_ID, item.getFeed().getId());
args.putLong(ARG_FEEDITEM_ID, item.getId());
args.putBoolean(ARG_SCROLLBAR_ENABLED, scrollbarEnabled);
f.setArguments(args);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
webvDescription = new WebView(getActivity());
webvDescription.setHorizontalScrollBarEnabled(scrollbarEnabled);
return webvDescription;
}
@SuppressLint("NewApi")
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (webViewLoader == null && item != null) {
webViewLoader = createLoader();
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
webViewLoader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
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);
scrollbarEnabled = args.getBoolean(ARG_SCROLLBAR_ENABLED, true);
if (feedId != -1 && itemId != -1) {
Feed feed = manager.getFeed(feedId);
item = manager.getFeedItem(itemId, feed);
webViewLoader = createLoader();
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
webViewLoader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
webViewLoader.execute();
}
} 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();
if (getSherlockActivity() != null) {
getSherlockActivity()
.setSupportProgressBarIndeterminateVisibility(false);
}
webViewLoader = null;
}
String data;
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// /webvDescription.loadData(url, "text/html", "utf-8");
webvDescription.loadDataWithBaseURL(null, data, "text/html",
"utf-8", "about:blank");
getSherlockActivity()
.setSupportProgressBarIndeterminateVisibility(false);
if (BuildConfig.DEBUG) Log.d(TAG, "Webview loaded");
webViewLoader = null;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
getSherlockActivity()
.setSupportProgressBarIndeterminateVisibility(true);
}
@Override
protected Void doInBackground(Void... params) {
if (BuildConfig.DEBUG) Log.d(TAG, "Loading Webview");
data = "";
if (item.getContentEncoded() == null
&& item.getDescription() != null) {
data = item.getDescription();
} else {
data = StringEscapeUtils.unescapeHtml4(item
.getContentEncoded());
}
data = WEBVIEW_STYLE + data;
return null;
}
};
}
}
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