tt-rss-android/src/org/fox/ttrss/util/HeadlinesRequest.java
2013-02-09 20:25:56 +04:00

84 lines
2.2 KiB
Java

package org.fox.ttrss.util;
import java.lang.reflect.Type;
import java.util.List;
import org.fox.ttrss.ApiRequest;
import org.fox.ttrss.GlobalState;
import org.fox.ttrss.OnlineActivity;
import org.fox.ttrss.R;
import org.fox.ttrss.types.Article;
import org.fox.ttrss.types.ArticleList;
import android.content.Context;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.reflect.TypeToken;
public class HeadlinesRequest extends ApiRequest {
public static final int HEADLINES_REQUEST_SIZE = 30;
public static final int HEADLINES_BUFFER_MAX = 500;
private int m_offset = 0;
private OnlineActivity m_activity;
private ArticleList m_articles = GlobalState.getInstance().m_loadedArticles;
public HeadlinesRequest(Context context, OnlineActivity activity) {
super(context);
m_activity = activity;
}
protected void onPostExecute(JsonElement result) {
if (result != null) {
try {
JsonArray content = result.getAsJsonArray();
if (content != null) {
Type listType = new TypeToken<List<Article>>() {}.getType();
final List<Article> articles = new Gson().fromJson(content, listType);
while (m_articles.size() > HEADLINES_BUFFER_MAX)
m_articles.remove(0);
if (m_offset == 0)
m_articles.clear();
else
if (m_articles.get(m_articles.size()-1).id == -1)
m_articles.remove(m_articles.size()-1); // remove previous placeholder
for (Article f : articles)
m_articles.add(f);
if (articles.size() == HEADLINES_REQUEST_SIZE) {
Article placeholder = new Article(-1);
m_articles.add(placeholder);
}
/* if (m_articles.size() == 0)
m_activity.setLoadingStatus(R.string.no_headlines_to_display, false);
else */
m_activity.setLoadingStatus(R.string.blank, false);
return;
}
} catch (Exception e) {
e.printStackTrace();
}
}
if (m_lastError == ApiError.LOGIN_FAILED) {
m_activity.login();
} else {
m_activity.setLoadingStatus(getErrorMessage(), false);
}
}
public void setOffset(int skip) {
m_offset = skip;
}
}