Back to project page Hackful-Europe-Reader.
The source code is released under:
Apache License
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/* Copyright 2012 Damin Serrano Thode (@dsthode) /* w ww . j ava2 s .c o m*/ Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package com.nineducks.hereader.ui; import java.io.Serializable; import java.net.URL; import java.util.ArrayList; import java.util.List; import android.content.DialogInterface; import android.content.Intent; import android.content.res.Configuration; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.support.v4.view.ViewPager.LayoutParams; import android.util.Log; import android.view.HapticFeedbackConstants; import android.view.View; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.widget.AdapterView; import android.widget.FrameLayout; import android.widget.Toast; import com.markupartist.android.widget.ActionBar; import com.nineducks.hereader.AboutAction; import com.nineducks.hereader.HEReaderState; import com.nineducks.hereader.HackfulItemsController; import com.nineducks.hereader.HackfulReaderActivity; import com.nineducks.hereader.ItemsLoadedListener; import com.nineducks.hereader.LoadAskItemsAction; import com.nineducks.hereader.LoadFrontpageItemsAction; import com.nineducks.hereader.LoadNewItemsAction; import com.nineducks.hereader.NewsItemsLoaderTask; import com.nineducks.hereader.R; import com.nineducks.util.rss.HEMessage; public class NewsItemsFragment extends ListFragment implements ItemsLoadedListener, HackfulItemsController, AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener, DialogInterface.OnClickListener{ public static final String SAVED_ITEMS_KEY = "saved_items"; public static final String SAVED_ITEMS_SOURCE_KEY = "saved_items_source"; private List<ListFragmentItem> items = new ArrayList<ListFragmentItem>(); private boolean mDualPane = true; private HEMessagesAdapter adapter = null; private WebView webView = null; private FrameLayout webViewContainer; private int currentItemsSource; private int currentPage = 1; private ActionBar actionBar; private int currentPosition = -1; private int clickedPosition = -1; @Override public void onActivityCreated(Bundle savedInstanceState) { Log.d("hereader", "entering NewsItemsFragment.onActivityCreated"); super.onActivityCreated(savedInstanceState); initUI(); getListView().setHapticFeedbackEnabled(true); getListView().setLongClickable(true); getListView().setOnItemClickListener(this); getListView().setOnItemLongClickListener(this); if (savedInstanceState != null && savedInstanceState.containsKey(NewsItemsFragment.SAVED_ITEMS_KEY) && savedInstanceState.containsKey(NewsItemsFragment.SAVED_ITEMS_SOURCE_KEY)) { List<ListFragmentItem> items = (List<ListFragmentItem>) savedInstanceState.getSerializable(NewsItemsFragment.SAVED_ITEMS_KEY); int itemsSource = savedInstanceState.getInt(NewsItemsFragment.SAVED_ITEMS_SOURCE_KEY); putItems(items, itemsSource); } else { if (savedInstanceState == null) Log.d("hereader", "savend instancestate null"); loadFrontpageItems(); } Log.d("hereader", "leaving NewsItemsFragment.onActivityCreated"); } private void initUI() { Log.d("hereader", "Creating UI"); webViewContainer = (FrameLayout) getActivity().findViewById(R.id.webview_container); mDualPane = webViewContainer != null && webViewContainer.getVisibility() == View.VISIBLE; actionBar = (ActionBar) getActivity().findViewById(R.id.action_bar); actionBar.setHomeIcon(R.drawable.hackful_icon); actionBar.addAction(new LoadFrontpageItemsAction(HackfulReaderActivity.getContext(), this)); actionBar.addAction(new LoadNewItemsAction(HackfulReaderActivity.getContext(), this)); actionBar.addAction(new LoadAskItemsAction(HackfulReaderActivity.getContext(), this)); actionBar.addAction(new AboutAction(HackfulReaderActivity.getContext(), this)); if (mDualPane || getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) { actionBar.setTitle(R.string.app_name); } if (mDualPane) { if (webView == null) { Log.d("hereader", "WebView is null, creating new instance"); final ActionBar actionB = actionBar; webView = new WebView(getActivity()); webView.setId(R.id.webview_id); webView.getSettings().setJavaScriptEnabled(true); webView.getSettings().setSupportZoom(true); //webView.getSettings().setBuiltInZoomControls(false); webView.setWebChromeClient(new WebChromeClient() { @Override public void onProgressChanged(WebView view, int newProgress) { if (newProgress == 100) { actionB.setProgressBarVisibility(View.GONE); } } }); } webViewContainer.addView(webView, LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); } Log.d("hereader", "UI created"); } private void showDetails(int position, URL itemUrl) { Log.d("hereader", "entering NewsItemsFragment.showDetails"); if (mDualPane) { Log.d("hereader", "Is dual pane"); if (currentPosition >= 0) { items.get(currentPosition).setSelected(false); } currentPosition = position; items.get(currentPosition).setSelected(true); actionBar.setProgressBarVisibility(View.VISIBLE); webView.stopLoading(); webView.loadUrl(itemUrl.toString()); adapter.notifyDataSetChanged(); Log.d("hereader", "WebView loadUrl invoked"); } else { Log.d("hereader", "Is single pane"); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setData(Uri.parse(itemUrl.toString())); startActivity(intent); Log.d("hereader", "Intent launched for single pane"); } Log.d("hereader", "leaving NewsItemsFragment.showDetails"); } @Override public void onItemsLoaded(List<HEMessage> items) { Log.d("hereader", "received notification from NewsItemsLoaderTask"); if (items != null) { this.items.addAll(transformItems(items)); if (adapter == null) { adapter = new HEMessagesAdapter(getActivity(), R.layout.item, this.items); setListAdapter(adapter); } else { adapter.notifyDataSetChanged(); } actionBar.setProgressBarVisibility(View.GONE); getListView().setSelectionAfterHeaderView(); } else { Toast.makeText(getActivity(), R.string.connection_error, 7).show(); } } public boolean isDualPane() { return mDualPane; } private void loadItems(String source) { Log.d("hereader", "entering NewsItemsFragment.loadItems"); if (actionBar != null) { actionBar.setProgressBarVisibility(View.VISIBLE); } NewsItemsLoaderTask task = new NewsItemsLoaderTask(); task.addNewsItemsLoadedListener(this); task.setContext(getActivity().getApplicationContext()); task.execute(source, getString(R.string.he_namespace)); Log.d("hereader", "leaving NewsItemsFragment.loadItems"); } @Override public void loadFrontpageItems() { currentItemsSource = R.string.frontpage_feed; items.clear(); if (adapter != null) { adapter.clear(); } loadItems(getString(R.string.frontpage_feed)); } @Override public void loadNewItems() { currentItemsSource = R.string.new_feed; items.clear(); if (adapter != null) { adapter.clear(); } loadItems(getString(R.string.new_feed)); } @Override public void loadAskItems() { currentItemsSource = R.string.ask_feed; items.clear(); if (adapter != null) { adapter.clear(); } loadItems(getString(R.string.ask_feed)); } @Override public void loadMoreItems() { actionBar.setProgressBarVisibility(View.VISIBLE); switch (currentItemsSource) { case R.string.frontpage_feed: break; case R.string.new_feed: break; } } @Override public List<ListFragmentItem> getItems() { return items; } @Override public void putItems(List<ListFragmentItem> items, int itemsSource) { this.items = items; currentItemsSource = itemsSource; } @Override public int getItemsSource() { return currentItemsSource; } @Override public HEReaderState getCurrentState() { return new HEReaderState(currentItemsSource, items, currentPage); } @Override public void setCurrentState(HEReaderState state) { currentItemsSource = state.getCurrentSource(); items = state.getItems(); currentPage = state.getCurrentPage(); adapter.notifyDataSetChanged(); } @Override public void onDetach() { if (mDualPane) { webViewContainer.removeView(webView); } super.onDetach(); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); } private List<ListFragmentItem> transformItems(List<HEMessage> items) { List<ListFragmentItem> result = new ArrayList<ListFragmentItem>(); for(HEMessage msg : items) { result.add(new ListFragmentItem(msg, false)); } return result; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); Log.d("hereader", "saving instance state"); outState.putSerializable(SAVED_ITEMS_KEY, (Serializable) items); outState.putInt(SAVED_ITEMS_SOURCE_KEY, currentItemsSource); } @Override public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { getListView().performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); clickedPosition = position; getActivity().showDialog(R.id.open_dialog); return true; } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { URL itemUrl = items.get(position).getHEMessage().getLink(); clickedPosition = position; showDetails(position, itemUrl); } @Override public void onClick(DialogInterface dialog, int item) { String selected = getResources().getStringArray(R.array.open_dialog_options)[item]; URL url = null; if (selected.equals(getResources().getString(R.string.open_link))) { url = items.get(clickedPosition).getHEMessage().getLink(); } else if (selected.equals(getResources().getString(R.string.open_post))) { url = items.get(clickedPosition).getHEMessage().getGuid(); } if (url != null) { showDetails(clickedPosition, url); } } }