348 lines
9.0 KiB
Java
348 lines
9.0 KiB
Java
package org.fox.ttrss;
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import java.util.HashMap;
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import org.fox.ttrss.types.Article;
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import org.fox.ttrss.types.ArticleList;
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import org.fox.ttrss.types.Feed;
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import org.fox.ttrss.util.HeadlinesRequest;
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import android.annotation.SuppressLint;
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import android.app.Activity;
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import android.content.SharedPreferences;
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import android.os.BadParcelableException;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
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import android.support.v4.app.ClassloaderWorkaroundFragmentStatePagerAdapter;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentManager;
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import android.support.v4.app.FragmentStatePagerAdapter;
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import android.support.v4.view.ViewPager;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.WindowManager;
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import com.google.gson.JsonElement;
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import com.viewpagerindicator.UnderlinePageIndicator;
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public class ArticlePager extends Fragment {
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private final String TAG = "ArticlePager";
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private PagerAdapter m_adapter;
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private HeadlinesEventListener m_listener;
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private Article m_article;
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private ArticleList m_articles = GlobalState.getInstance().m_loadedArticles;
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private OnlineActivity m_activity;
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private String m_searchQuery = "";
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private Feed m_feed;
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private SharedPreferences m_prefs;
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private class PagerAdapter extends ClassloaderWorkaroundFragmentStatePagerAdapter {
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public PagerAdapter(FragmentManager fm) {
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super(fm);
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}
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@Override
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public Fragment getItem(int position) {
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Article article = m_articles.get(position);
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if (article != null) {
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ArticleFragment af = new ArticleFragment();
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af.initialize(article);
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if (m_prefs.getBoolean("dim_status_bar", false) && getView() != null && !m_activity.isCompatMode()) {
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getView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
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}
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return af;
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}
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return null;
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}
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@Override
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public int getCount() {
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return m_articles.size();
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}
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}
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public void initialize(Article article, Feed feed) {
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m_article = article;
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m_feed = feed;
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}
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public void setSearchQuery(String searchQuery) {
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m_searchQuery = searchQuery;
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.article_pager, container, false);
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if (savedInstanceState != null) {
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m_article = savedInstanceState.getParcelable("article");
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m_feed = savedInstanceState.getParcelable("feed");
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}
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m_adapter = new PagerAdapter(getActivity().getSupportFragmentManager());
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ViewPager pager = (ViewPager) view.findViewById(R.id.article_pager);
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int position = m_articles.indexOf(m_article);
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m_listener.onArticleSelected(m_article, false);
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m_activity.setProgressBarVisibility(true);
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pager.setAdapter(m_adapter);
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UnderlinePageIndicator indicator = (UnderlinePageIndicator)view.findViewById(R.id.article_titles);
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indicator.setViewPager(pager);
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pager.setCurrentItem(position);
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indicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
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@Override
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public void onPageScrollStateChanged(int arg0) {
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}
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@Override
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public void onPageScrolled(int arg0, float arg1, int arg2) {
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}
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@Override
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public void onPageSelected(int position) {
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Article article = m_articles.get(position);
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if (article != null) {
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m_article = article;
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/* if (article.unread) {
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article.unread = false;
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m_activity.saveArticleUnread(article);
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} */
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m_listener.onArticleSelected(article, false);
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//Log.d(TAG, "Page #" + position + "/" + m_adapter.getCount());
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if ((m_activity.isSmallScreen() || m_activity.isPortrait()) && position == m_adapter.getCount() - 15) {
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Log.d(TAG, "loading more articles...");
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refresh(true);
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}
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}
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}
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});
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return view;
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}
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@SuppressWarnings({ "serial" })
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protected void refresh(boolean append) {
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m_activity.setLoadingStatus(R.string.blank, true);
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m_activity.setProgressBarVisibility(true);
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//m_activity.m_pullToRefreshAttacher.setRefreshing(true);
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if (!m_feed.equals(GlobalState.getInstance().m_activeFeed)) {
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append = false;
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}
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HeadlinesRequest req = new HeadlinesRequest(getActivity().getApplicationContext(), m_activity, m_feed) {
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@Override
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protected void onProgressUpdate(Integer... progress) {
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m_activity.setProgress(progress[0] / progress[1] * 10000);
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}
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@Override
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protected void onPostExecute(JsonElement result) {
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if (isDetached()) return;
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m_activity.setProgressBarVisibility(false);
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//m_activity.m_pullToRefreshAttacher.setRefreshComplete();
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super.onPostExecute(result);
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if (result != null) {
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try {
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m_adapter.notifyDataSetChanged();
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} catch (BadParcelableException e) {
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if (getActivity() != null) {
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getActivity().finish();
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return;
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}
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}
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if (m_article != null) {
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if (m_article.id == 0 || m_articles.indexOf(m_article) == -1) {
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if (m_articles.size() > 0) {
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m_article = m_articles.get(0);
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m_listener.onArticleSelected(m_article, false);
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}
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}
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}
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} else {
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if (m_lastError == ApiError.LOGIN_FAILED) {
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m_activity.login(true);
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} else {
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m_activity.toast(getErrorMessage());
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//setLoadingStatus(getErrorMessage(), false);
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}
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}
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}
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};
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final Feed feed = m_feed;
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final String sessionId = m_activity.getSessionId();
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int skip = 0;
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if (append) {
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// adaptive, all_articles, marked, published, unread
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String viewMode = m_activity.getViewMode();
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int numUnread = 0;
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int numAll = m_articles.size();
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for (Article a : m_articles) {
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if (a.unread) ++numUnread;
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}
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if ("marked".equals(viewMode)) {
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skip = numAll;
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} else if ("published".equals(viewMode)) {
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skip = numAll;
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} else if ("unread".equals(viewMode)) {
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skip = numUnread;
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} else if (m_searchQuery != null && m_searchQuery.length() > 0) {
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skip = numAll;
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} else if ("adaptive".equals(viewMode)) {
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skip = numUnread > 0 ? numUnread : numAll;
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} else {
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skip = numAll;
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}
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}
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final int fskip = skip;
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req.setOffset(skip);
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HashMap<String,String> map = new HashMap<String,String>() {
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{
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put("op", "getHeadlines");
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put("sid", sessionId);
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put("feed_id", String.valueOf(feed.id));
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put("show_content", "true");
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put("include_attachments", "true");
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put("limit", String.valueOf(HeadlinesFragment.HEADLINES_REQUEST_SIZE));
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put("offset", String.valueOf(0));
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put("view_mode", m_activity.getViewMode());
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put("skip", String.valueOf(fskip));
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put("include_nested", "true");
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put("order_by", m_prefs.getBoolean("oldest_first", false) ? "date_reverse" : "");
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if (feed.is_cat) put("is_cat", "true");
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if (m_searchQuery != null && m_searchQuery.length() != 0) {
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put("search", m_searchQuery);
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put("search_mode", "");
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put("match_on", "both");
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}
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}
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};
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req.execute(map);
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}
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@Override
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public void onSaveInstanceState(Bundle out) {
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super.onSaveInstanceState(out);
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out.setClassLoader(getClass().getClassLoader());
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out.putParcelable("article", m_article);
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out.putParcelable("feed", m_feed);
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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m_listener = (HeadlinesEventListener)activity;
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m_activity = (OnlineActivity)activity;
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
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}
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@SuppressLint("NewApi")
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@Override
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public void onResume() {
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super.onResume();
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if (m_articles.size() == 0 || !m_feed.equals(GlobalState.getInstance().m_activeFeed)) {
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refresh(false);
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GlobalState.getInstance().m_activeFeed = m_feed;
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}
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m_activity.initMenu();
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if (!m_activity.isCompatMode() && m_prefs.getBoolean("dim_status_bar", false)) {
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getView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
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}
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if (m_prefs.getBoolean("full_screen_mode", false)) {
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m_activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
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WindowManager.LayoutParams.FLAG_FULLSCREEN);
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/* if (!m_activity.isCompatMode()) {
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m_activity.getSupportActionBar().hide();
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} */
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}
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}
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public Article getSelectedArticle() {
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return m_article;
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}
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public void setActiveArticle(Article article) {
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if (m_article != article) {
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m_article = article;
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int position = m_articles.indexOf(m_article);
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ViewPager pager = (ViewPager) getView().findViewById(R.id.article_pager);
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pager.setCurrentItem(position);
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}
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}
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public void selectArticle(boolean next) {
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if (m_article != null) {
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int position = m_articles.indexOf(m_article);
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if (next)
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position++;
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else
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position--;
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try {
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Article tmp = m_articles.get(position);
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if (tmp != null) {
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setActiveArticle(tmp);
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}
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} catch (IndexOutOfBoundsException e) {
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// do nothing
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}
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}
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}
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public void notifyUpdated() {
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m_adapter.notifyDataSetChanged();
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}
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}
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