The Tor Browser: mobile/android/base/home/LastTabsPanel.java@fc2d59ddac77 (annotated)

mobile/android/base/home/LastTabsPanel.java@fc2d59ddac77 (annotated)

mobile/android/base/home/LastTabsPanel.java

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 package org.mozilla.gecko.home;
 import org.mozilla.gecko.AboutPages;
 import org.mozilla.gecko.GeckoProfile;
 import org.mozilla.gecko.R;
 import org.mozilla.gecko.SessionParser;
 import org.mozilla.gecko.Telemetry;
 import org.mozilla.gecko.TelemetryContract;
 import org.mozilla.gecko.db.BrowserContract.Combined;
 import org.mozilla.gecko.home.HomePager.OnNewTabsListener;
 import android.app.Activity;
 import android.content.Context;
 import android.database.Cursor;
 import android.database.MatrixCursor;
 import android.database.MatrixCursor.RowBuilder;
 import android.os.Bundle;
 import android.support.v4.app.LoaderManager.LoaderCallbacks;
 import android.support.v4.content.Loader;
 import android.support.v4.widget.CursorAdapter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewStub;
 import android.widget.AdapterView;
 import android.widget.ImageView;
 import android.widget.TextView;
 /**
  * Fragment that displays tabs from last session in a ListView.
  */
 public class LastTabsPanel extends HomeFragment {
     // Logging tag name
     private static final String LOGTAG = "GeckoLastTabsPanel";
     // Cursor loader ID for the session parser
     private static final int LOADER_ID_LAST_TABS = 0;
     // Adapter for the list of search results
     private LastTabsAdapter mAdapter;
     // The view shown by the fragment.
     private HomeListView mList;
     // The title for this HomeFragment panel.
     private TextView mTitle;
     // The button view for restoring tabs from last session.
     private View mRestoreButton;
     // Reference to the View to display when there are no results.
     private View mEmptyView;
     // Callbacks used for the search and favicon cursor loaders
     private CursorLoaderCallbacks mCursorLoaderCallbacks;
     // On new tabs listener
     private OnNewTabsListener mNewTabsListener;
     public static LastTabsPanel newInstance() {
         return new LastTabsPanel();
     }
     public LastTabsPanel() {
         mNewTabsListener = null;
     }
     @Override
     public void onAttach(Activity activity) {
         super.onAttach(activity);
         try {
             mNewTabsListener = (OnNewTabsListener) activity;
         } catch (ClassCastException e) {
             throw new ClassCastException(activity.toString()
                     + " must implement HomePager.OnNewTabsListener");
         }
     }
     @Override
     public void onDetach() {
         super.onDetach();
         mNewTabsListener = null;
     }
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.home_last_tabs_panel, container, false);
     }
     @Override
     public void onViewCreated(View view, Bundle savedInstanceState) {
         mTitle = (TextView) view.findViewById(R.id.title);
         if (mTitle != null) {
             mTitle.setText(R.string.home_last_tabs_title);
         }
         mList = (HomeListView) view.findViewById(R.id.list);
         mList.setTag(HomePager.LIST_TAG_LAST_TABS);
         mList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                 final Cursor c = mAdapter.getCursor();
                 if (c == null || !c.moveToPosition(position)) {
                     return;
                 }
                 Telemetry.sendUIEvent(TelemetryContract.Event.LOAD_URL);
                 final String url = c.getString(c.getColumnIndexOrThrow(Combined.URL));
                 mNewTabsListener.onNewTabs(new String[] { url });
             }
         });
         mList.setContextMenuInfoFactory(new HomeContextMenuInfo.Factory() {
             @Override
             public HomeContextMenuInfo makeInfoForCursor(View view, int position, long id, Cursor cursor) {
                 final HomeContextMenuInfo info = new HomeContextMenuInfo(view, position, id);
                 info.url = cursor.getString(cursor.getColumnIndexOrThrow(Combined.URL));
                 info.title = cursor.getString(cursor.getColumnIndexOrThrow(Combined.TITLE));
                 return info;
             }
         });
         registerForContextMenu(mList);
         mRestoreButton = view.findViewById(R.id.open_all_tabs_button);
         mRestoreButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 openAllTabs();
             }
         });
     }
     @Override
     public void onDestroyView() {
         super.onDestroyView();
         mList = null;
         mTitle = null;
         mEmptyView = null;
         mRestoreButton = null;
     }
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         // Intialize adapter
         mAdapter = new LastTabsAdapter(getActivity());
         mList.setAdapter(mAdapter);
         // Create callbacks before the initial loader is started
         mCursorLoaderCallbacks = new CursorLoaderCallbacks();
         loadIfVisible();
     }
     private void updateUiFromCursor(Cursor c) {
         if (c != null && c.getCount() > 0) {
             if (mTitle != null) {
                 mTitle.setVisibility(View.VISIBLE);
             }
             mRestoreButton.setVisibility(View.VISIBLE);
             return;
         }
         // Cursor is empty, so hide the title and set the
         // empty view if it hasn't been set already.
         if (mTitle != null) {
             mTitle.setVisibility(View.GONE);
         }
         mRestoreButton.setVisibility(View.GONE);
         if (mEmptyView == null) {
             // Set empty panel view. We delay this so that the empty view won't flash.
             final ViewStub emptyViewStub = (ViewStub) getView().findViewById(R.id.home_empty_view_stub);
             mEmptyView = emptyViewStub.inflate();
             final ImageView emptyIcon = (ImageView) mEmptyView.findViewById(R.id.home_empty_image);
             emptyIcon.setImageResource(R.drawable.icon_last_tabs_empty);
             final TextView emptyText = (TextView) mEmptyView.findViewById(R.id.home_empty_text);
             emptyText.setText(R.string.home_last_tabs_empty);
             mList.setEmptyView(mEmptyView);
         }
     }
     @Override
     protected void load() {
         getLoaderManager().initLoader(LOADER_ID_LAST_TABS, null, mCursorLoaderCallbacks);
     }
     private void openAllTabs() {
         final Cursor c = mAdapter.getCursor();
         if (c == null || !c.moveToFirst()) {
             return;
         }
         final String[] urls = new String[c.getCount()];
         do {
             urls[c.getPosition()] = c.getString(c.getColumnIndexOrThrow(Combined.URL));
         } while (c.moveToNext());
         Telemetry.sendUIEvent(TelemetryContract.Event.LOAD_URL, TelemetryContract.Method.BUTTON);
         mNewTabsListener.onNewTabs(urls);
     }
     private static class LastTabsCursorLoader extends SimpleCursorLoader {
         public LastTabsCursorLoader(Context context) {
             super(context);
         }
         @Override
         public Cursor loadCursor() {
             final Context context = getContext();
             final String jsonString = GeckoProfile.get(context).readSessionFile(true);
             if (jsonString == null) {
                 // No previous session data
                 return null;
             }
             final MatrixCursor c = new MatrixCursor(new String[] { Combined._ID,
                                                                    Combined.URL,
                                                                    Combined.TITLE });
             new SessionParser() {
                 @Override
                 public void onTabRead(SessionTab tab) {
                     final String url = tab.getUrl();
                     // Don't show last tabs for about:home
                     if (AboutPages.isAboutHome(url)) {
                         return;
                     }
                     final RowBuilder row = c.newRow();
                     row.add(-1);
                     row.add(url);
                     final String title = tab.getTitle();
                     row.add(title);
                 }
             }.parse(jsonString);
             return c;
         }
     }
     private static class LastTabsAdapter extends CursorAdapter {
         public LastTabsAdapter(Context context) {
             super(context, null, 0);
         }
         @Override
         public void bindView(View view, Context context, Cursor cursor) {
             ((TwoLinePageRow) view).updateFromCursor(cursor);
         }
         @Override
         public View newView(Context context, Cursor cursor, ViewGroup parent) {
             return LayoutInflater.from(context).inflate(R.layout.home_item_row, parent, false);
         }
     }
     private class CursorLoaderCallbacks implements LoaderCallbacks<Cursor> {
         @Override
         public Loader<Cursor> onCreateLoader(int id, Bundle args) {
             return new LastTabsCursorLoader(getActivity());
         }
         @Override
         public void onLoadFinished(Loader<Cursor> loader, Cursor c) {
             mAdapter.swapCursor(c);
             updateUiFromCursor(c);
         }
         @Override
         public void onLoaderReset(Loader<Cursor> loader) {
             mAdapter.swapCursor(null);
         }
     }
 }

The Tor Browser / annotate

mobile/android/base/home/LastTabsPanel.java@fc2d59ddac77 (annotated)

mobile/android/base/home/LastTabsPanel.java