package org.fox.ttrss; import java.lang.reflect.Type; import java.net.MalformedURLException; import java.net.URL; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.TimeZone; import org.fox.ttrss.types.Article; import org.fox.ttrss.types.ArticleList; import org.fox.ttrss.types.Attachment; import org.fox.ttrss.types.Feed; import org.jsoup.Jsoup; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.text.Html; import android.text.Html.ImageGetter; import android.text.method.LinkMovementMethod; import android.util.Log; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.AbsListView.OnScrollListener; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ListView; import android.widget.Spinner; import android.widget.TextView; import com.google.gson.Gson; import com.google.gson.JsonArray; import com.google.gson.JsonElement; import com.google.gson.reflect.TypeToken; public class HeadlinesFragment extends Fragment implements OnItemClickListener, OnScrollListener { public static enum ArticlesSelection { ALL, NONE, UNREAD }; public static final int HEADLINES_REQUEST_SIZE = 30; public static final int HEADLINES_BUFFER_MAX = 500; private final String TAG = this.getClass().getSimpleName(); private Feed m_feed; private Article m_activeArticle; private boolean m_refreshInProgress = false; private boolean m_canLoadMore = false; private boolean m_combinedMode = true; private String m_searchQuery = ""; private SharedPreferences m_prefs; private ArticleListAdapter m_adapter; private ArticleList m_articles = new ArticleList(); private ArticleList m_selectedArticles = new ArticleList(); private OnlineServices m_onlineServices; private ImageGetter m_dummyGetter = new ImageGetter() { @Override public Drawable getDrawable(String source) { return new BitmapDrawable(); } }; public ArticleList getSelectedArticles() { return m_selectedArticles; } public HeadlinesFragment(Feed feed) { m_feed = feed; } public HeadlinesFragment() { // } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { getActivity().getMenuInflater().inflate(R.menu.headlines_menu, menu); if (m_selectedArticles.size() > 0) { menu.setHeaderTitle(R.string.headline_context_multiple); menu.setGroupVisible(R.id.menu_group_single_article, false); } else { AdapterContextMenuInfo info = (AdapterContextMenuInfo)menuInfo; Article article = getArticleAtPosition(info.position); menu.setHeaderTitle(article.title); menu.setGroupVisible(R.id.menu_group_single_article, true); } menu.findItem(R.id.set_labels).setEnabled(m_onlineServices.getApiLevel() >= 1); menu.findItem(R.id.article_set_note).setEnabled(m_onlineServices.getApiLevel() >= 1); super.onCreateContextMenu(menu, v, menuInfo); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (savedInstanceState != null) { m_feed = savedInstanceState.getParcelable("feed"); m_articles = savedInstanceState.getParcelable("articles"); m_activeArticle = savedInstanceState.getParcelable("activeArticle"); m_selectedArticles = savedInstanceState.getParcelable("selectedArticles"); m_canLoadMore = savedInstanceState.getBoolean("canLoadMore"); m_combinedMode = savedInstanceState.getBoolean("combinedMode"); m_searchQuery = (String) savedInstanceState.getCharSequence("searchQuery"); } View view = inflater.inflate(R.layout.headlines_fragment, container, false); ListView list = (ListView)view.findViewById(R.id.headlines); m_adapter = new ArticleListAdapter(getActivity(), R.layout.headlines_row, (ArrayList
)m_articles); list.setAdapter(m_adapter); list.setOnItemClickListener(this); list.setOnScrollListener(this); //list.setEmptyView(view.findViewById(R.id.no_headlines)); registerForContextMenu(list); if (m_onlineServices.isSmallScreen() || m_onlineServices.isPortrait()) view.findViewById(R.id.headlines_fragment).setPadding(0, 0, 0, 0); Log.d(TAG, "onCreateView, feed=" + m_feed); if (m_feed != null && (m_articles == null || m_articles.size() == 0)) refresh(false); else getActivity().setProgressBarIndeterminateVisibility(false); return view; } @Override public void onAttach(Activity activity) { super.onAttach(activity); m_prefs = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext()); m_onlineServices = (OnlineServices) activity; m_combinedMode = m_prefs.getBoolean("combined_mode", false); } @Override public void onItemClick(AdapterView av, View view, int position, long id) { ListView list = (ListView)av; Log.d(TAG, "onItemClick=" + position); if (list != null) { Article article = (Article)list.getItemAtPosition(position); if (article.id >= 0) { if (m_combinedMode) { article.unread = false; m_onlineServices.saveArticleUnread(article); } else { m_onlineServices.onArticleSelected(article); } m_activeArticle = article; m_adapter.notifyDataSetChanged(); } } } @SuppressWarnings({ "unchecked", "serial" }) public void refresh(boolean append) { m_refreshInProgress = true; HeadlinesRequest req = new HeadlinesRequest(getActivity().getApplicationContext()); final String sessionId = m_onlineServices.getSessionId(); final boolean showUnread = m_onlineServices.getUnreadArticlesOnly(); final boolean isCat = m_feed.is_cat; int skip = 0; if (append) { for (Article a : m_articles) { if (a.unread) ++skip; } if (skip == 0) skip = m_articles.size(); } else { setLoadingStatus(R.string.blank, true); } final int fskip = skip; req.setOffset(skip); HashMap map = new HashMap() { { put("op", "getHeadlines"); put("sid", sessionId); put("feed_id", String.valueOf(m_feed.id)); put("show_content", "true"); put("include_attachments", "true"); put("limit", String.valueOf(HEADLINES_REQUEST_SIZE)); put("offset", String.valueOf(0)); put("view_mode", showUnread ? "adaptive" : "all_articles"); put("skip", String.valueOf(fskip)); if (isCat) put("is_cat", "true"); if (m_searchQuery.length() != 0) { put("search", m_searchQuery); put("search_mode", ""); put("match_on", "both"); } } }; req.execute(map); } @Override public void onSaveInstanceState (Bundle out) { super.onSaveInstanceState(out); out.putParcelable("feed", m_feed); out.putParcelable("articles", m_articles); out.putParcelable("activeArticle", m_activeArticle); out.putParcelable("selectedArticles", m_selectedArticles); out.putBoolean("canLoadMore", m_canLoadMore); out.putBoolean("combinedMode", m_combinedMode); out.putCharSequence("searchQuery", m_searchQuery); } private void setLoadingStatus(int status, boolean showProgress) { if (getView() != null) { TextView tv = (TextView)getView().findViewById(R.id.loading_message); if (tv != null) { tv.setText(status); } } if (getActivity() != null) getActivity().setProgressBarIndeterminateVisibility(showProgress); } private class HeadlinesRequest extends ApiRequest { int m_offset = 0; public HeadlinesRequest(Context context) { super(context); } protected void onPostExecute(JsonElement result) { if (result != null) { try { JsonArray content = result.getAsJsonArray(); if (content != null) { Type listType = new TypeToken>() {}.getType(); final List
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 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); m_canLoadMore = true; } else { m_canLoadMore = false; } m_adapter.notifyDataSetChanged(); if (m_articles.size() == 0) setLoadingStatus(R.string.no_headlines_to_display, false); else setLoadingStatus(R.string.blank, false); m_refreshInProgress = false; return; } } catch (Exception e) { e.printStackTrace(); } } if (m_lastError == ApiError.LOGIN_FAILED) { m_onlineServices.restart(); } else { setLoadingStatus(getErrorMessage(), false); } m_refreshInProgress = false; } public void setOffset(int skip) { m_offset = skip; } } private class ArticleListAdapter extends ArrayAdapter
{ private ArrayList
items; public static final int VIEW_NORMAL = 0; public static final int VIEW_UNREAD = 1; public static final int VIEW_SELECTED = 2; public static final int VIEW_LOADMORE = 3; public static final int VIEW_COUNT = VIEW_LOADMORE+1; public ArticleListAdapter(Context context, int textViewResourceId, ArrayList
items) { super(context, textViewResourceId, items); this.items = items; } public int getViewTypeCount() { return VIEW_COUNT; } @Override public int getItemViewType(int position) { Article a = items.get(position); if (a.id == -1) { return VIEW_LOADMORE; } else if (m_activeArticle != null && a.id == m_activeArticle.id) { return VIEW_SELECTED; } else if (a.unread) { return VIEW_UNREAD; } else { return VIEW_NORMAL; } } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; final Article article = items.get(position); if (v == null) { int layoutId = R.layout.headlines_row; switch (getItemViewType(position)) { case VIEW_LOADMORE: layoutId = R.layout.headlines_row_loadmore; break; case VIEW_UNREAD: layoutId = R.layout.headlines_row_unread; break; case VIEW_SELECTED: layoutId = R.layout.headlines_row_selected; break; } LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(layoutId, null); // http://code.google.com/p/android/issues/detail?id=3414 ((ViewGroup)v).setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS); } TextView tt = (TextView)v.findViewById(R.id.title); if (tt != null) { if (m_combinedMode) { tt.setMovementMethod(LinkMovementMethod.getInstance()); tt.setText(Html.fromHtml("" + article.title + "")); } else { tt.setText(Html.fromHtml(article.title)); } } TextView ft = (TextView)v.findViewById(R.id.feed_title); if (ft != null) { if (article.feed_title != null && (m_feed.is_cat || m_feed.id < 0)) { ft.setText(article.feed_title); } else { ft.setVisibility(View.GONE); } } ImageView marked = (ImageView)v.findViewById(R.id.marked); if (marked != null) { marked.setImageResource(article.marked ? android.R.drawable.star_on : android.R.drawable.star_off); marked.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { article.marked = !article.marked; m_adapter.notifyDataSetChanged(); m_onlineServices.saveArticleMarked(article); } }); } ImageView published = (ImageView)v.findViewById(R.id.published); if (published != null) { published.setImageResource(article.published ? R.drawable.ic_rss : R.drawable.ic_rss_bw); published.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { article.published = !article.published; m_adapter.notifyDataSetChanged(); m_onlineServices.saveArticlePublished(article); } }); } TextView te = (TextView)v.findViewById(R.id.excerpt); String articleContent = article.content != null ? article.content : ""; if (te != null) { if (!m_combinedMode) { String excerpt = Jsoup.parse(articleContent).text(); if (excerpt.length() > 100) excerpt = excerpt.substring(0, 100) + "..."; te.setText(excerpt); } else { te.setVisibility(View.GONE); } } /* ImageView separator = (ImageView)v.findViewById(R.id.headlines_separator); if (separator != null && m_onlineServices.isSmallScreen()) { separator.setVisibility(View.GONE); } */ TextView content = (TextView)v.findViewById(R.id.content); if (content != null) { if (m_combinedMode) { content.setMovementMethod(LinkMovementMethod.getInstance()); final Spinner spinner = (Spinner) v.findViewById(R.id.attachments); ArrayList spinnerArray = new ArrayList(); ArrayAdapter spinnerArrayAdapter = new ArrayAdapter( getActivity(), android.R.layout.simple_spinner_item, spinnerArray); spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); if (article.attachments != null && article.attachments.size() != 0) { for (Attachment a : article.attachments) { if (a.content_type != null && a.content_url != null) { try { URL url = new URL(a.content_url.trim()); if (a.content_type.indexOf("image") != -1) { articleContent += "
"; } spinnerArray.add(a); } catch (MalformedURLException e) { // } catch (Exception e) { e.printStackTrace(); } } } spinner.setAdapter(spinnerArrayAdapter); Button attachmentsView = (Button) v.findViewById(R.id.attachment_view); attachmentsView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Attachment attachment = (Attachment) spinner.getSelectedItem(); Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(attachment.content_url)); startActivity(browserIntent); } }); Button attachmentsCopy = (Button) v.findViewById(R.id.attachment_copy); attachmentsCopy.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Attachment attachment = (Attachment) spinner.getSelectedItem(); if (attachment != null) { m_onlineServices.copyToClipboard(attachment.content_url); } } }); } else { v.findViewById(R.id.attachments_holder).setVisibility(View.GONE); } //content.setText(Html.fromHtml(article.content, new URLImageGetter(content, getActivity()), null)); content.setText(Html.fromHtml(articleContent, m_dummyGetter, null)); switch (Integer.parseInt(m_prefs.getString("font_size", "0"))) { case 0: content.setTextSize(15F); break; case 1: content.setTextSize(18F); break; case 2: content.setTextSize(21F); break; } } else { content.setVisibility(View.GONE); v.findViewById(R.id.attachments_holder).setVisibility(View.GONE); } } TextView dv = (TextView) v.findViewById(R.id.date); if (dv != null) { Date d = new Date((long)article.updated * 1000); DateFormat df = new SimpleDateFormat("MMM dd, HH:mm"); df.setTimeZone(TimeZone.getDefault()); dv.setText(df.format(d)); } CheckBox cb = (CheckBox) v.findViewById(R.id.selected); if (cb != null) { cb.setChecked(m_selectedArticles.contains(article)); cb.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { CheckBox cb = (CheckBox)view; if (cb.isChecked()) { if (!m_selectedArticles.contains(article)) m_selectedArticles.add(article); } else { m_selectedArticles.remove(article); } m_onlineServices.onArticleListSelectionChange(m_selectedArticles); Log.d(TAG, "num selected: " + m_selectedArticles.size()); } }); } ImageButton ib = (ImageButton) v.findViewById(R.id.article_menu_button); if (ib != null) { ib.setVisibility(android.os.Build.VERSION.SDK_INT >= 10 ? View.VISIBLE : View.GONE); ib.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { getActivity().openContextMenu(v); } }); } return v; } } /* public void notifyUpdated() { m_adapter.notifyDataSetChanged(); Article article = m_onlineServices.getSelectedArticle(); setActiveArticle(article); } */ public ArticleList getAllArticles() { return m_articles; } public void setActiveArticle(Article article) { m_activeArticle = article; m_adapter.notifyDataSetChanged(); ListView list = (ListView)getView().findViewById(R.id.headlines); if (list != null && article != null) { int position = m_adapter.getPosition(article); list.setSelection(position); } } public void setSelection(ArticlesSelection select) { m_selectedArticles.clear(); if (select != ArticlesSelection.NONE) { for (Article a : m_articles) { if (select == ArticlesSelection.ALL || select == ArticlesSelection.UNREAD && a.unread) { m_selectedArticles.add(a); } } } m_adapter.notifyDataSetChanged(); } public Article getArticleAtPosition(int position) { try { return m_adapter.getItem(position); } catch (IndexOutOfBoundsException e) { return null; } } public Article getArticleById(int id) { for (Article a : m_articles) { if (a.id == id) return a; } return null; } public ArticleList getUnreadArticles() { ArticleList tmp = new ArticleList(); for (Article a : m_articles) { if (a.unread) tmp.add(a); } return tmp; } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { if (!m_refreshInProgress && m_canLoadMore && firstVisibleItem + visibleItemCount == m_articles.size()) { refresh(true); } } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { // no-op } public Article getActiveArticle() { return m_activeArticle; } public int getArticlePosition(Article article) { return m_adapter.getPosition(article); } public void setSearchQuery(String query) { if (!m_searchQuery.equals(query)) { m_searchQuery = query; refresh(false); } } }