1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/home/LastTabsPanel.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,293 @@
1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +package org.mozilla.gecko.home;
1.10 +
1.11 +import org.mozilla.gecko.AboutPages;
1.12 +import org.mozilla.gecko.GeckoProfile;
1.13 +import org.mozilla.gecko.R;
1.14 +import org.mozilla.gecko.SessionParser;
1.15 +import org.mozilla.gecko.Telemetry;
1.16 +import org.mozilla.gecko.TelemetryContract;
1.17 +import org.mozilla.gecko.db.BrowserContract.Combined;
1.18 +import org.mozilla.gecko.home.HomePager.OnNewTabsListener;
1.19 +
1.20 +import android.app.Activity;
1.21 +import android.content.Context;
1.22 +import android.database.Cursor;
1.23 +import android.database.MatrixCursor;
1.24 +import android.database.MatrixCursor.RowBuilder;
1.25 +import android.os.Bundle;
1.26 +import android.support.v4.app.LoaderManager.LoaderCallbacks;
1.27 +import android.support.v4.content.Loader;
1.28 +import android.support.v4.widget.CursorAdapter;
1.29 +import android.view.LayoutInflater;
1.30 +import android.view.View;
1.31 +import android.view.ViewGroup;
1.32 +import android.view.ViewStub;
1.33 +import android.widget.AdapterView;
1.34 +import android.widget.ImageView;
1.35 +import android.widget.TextView;
1.36 +
1.37 +/**
1.38 + * Fragment that displays tabs from last session in a ListView.
1.39 + */
1.40 +public class LastTabsPanel extends HomeFragment {
1.41 + // Logging tag name
1.42 + private static final String LOGTAG = "GeckoLastTabsPanel";
1.43 +
1.44 + // Cursor loader ID for the session parser
1.45 + private static final int LOADER_ID_LAST_TABS = 0;
1.46 +
1.47 + // Adapter for the list of search results
1.48 + private LastTabsAdapter mAdapter;
1.49 +
1.50 + // The view shown by the fragment.
1.51 + private HomeListView mList;
1.52 +
1.53 + // The title for this HomeFragment panel.
1.54 + private TextView mTitle;
1.55 +
1.56 + // The button view for restoring tabs from last session.
1.57 + private View mRestoreButton;
1.58 +
1.59 + // Reference to the View to display when there are no results.
1.60 + private View mEmptyView;
1.61 +
1.62 + // Callbacks used for the search and favicon cursor loaders
1.63 + private CursorLoaderCallbacks mCursorLoaderCallbacks;
1.64 +
1.65 + // On new tabs listener
1.66 + private OnNewTabsListener mNewTabsListener;
1.67 +
1.68 + public static LastTabsPanel newInstance() {
1.69 + return new LastTabsPanel();
1.70 + }
1.71 +
1.72 + public LastTabsPanel() {
1.73 + mNewTabsListener = null;
1.74 + }
1.75 +
1.76 + @Override
1.77 + public void onAttach(Activity activity) {
1.78 + super.onAttach(activity);
1.79 +
1.80 + try {
1.81 + mNewTabsListener = (OnNewTabsListener) activity;
1.82 + } catch (ClassCastException e) {
1.83 + throw new ClassCastException(activity.toString()
1.84 + + " must implement HomePager.OnNewTabsListener");
1.85 + }
1.86 + }
1.87 +
1.88 + @Override
1.89 + public void onDetach() {
1.90 + super.onDetach();
1.91 +
1.92 + mNewTabsListener = null;
1.93 + }
1.94 +
1.95 + @Override
1.96 + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1.97 + return inflater.inflate(R.layout.home_last_tabs_panel, container, false);
1.98 + }
1.99 +
1.100 + @Override
1.101 + public void onViewCreated(View view, Bundle savedInstanceState) {
1.102 + mTitle = (TextView) view.findViewById(R.id.title);
1.103 + if (mTitle != null) {
1.104 + mTitle.setText(R.string.home_last_tabs_title);
1.105 + }
1.106 +
1.107 + mList = (HomeListView) view.findViewById(R.id.list);
1.108 + mList.setTag(HomePager.LIST_TAG_LAST_TABS);
1.109 +
1.110 + mList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
1.111 + @Override
1.112 + public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
1.113 + final Cursor c = mAdapter.getCursor();
1.114 + if (c == null || !c.moveToPosition(position)) {
1.115 + return;
1.116 + }
1.117 +
1.118 + Telemetry.sendUIEvent(TelemetryContract.Event.LOAD_URL);
1.119 +
1.120 + final String url = c.getString(c.getColumnIndexOrThrow(Combined.URL));
1.121 + mNewTabsListener.onNewTabs(new String[] { url });
1.122 + }
1.123 + });
1.124 +
1.125 + mList.setContextMenuInfoFactory(new HomeContextMenuInfo.Factory() {
1.126 + @Override
1.127 + public HomeContextMenuInfo makeInfoForCursor(View view, int position, long id, Cursor cursor) {
1.128 + final HomeContextMenuInfo info = new HomeContextMenuInfo(view, position, id);
1.129 + info.url = cursor.getString(cursor.getColumnIndexOrThrow(Combined.URL));
1.130 + info.title = cursor.getString(cursor.getColumnIndexOrThrow(Combined.TITLE));
1.131 + return info;
1.132 + }
1.133 + });
1.134 +
1.135 + registerForContextMenu(mList);
1.136 +
1.137 + mRestoreButton = view.findViewById(R.id.open_all_tabs_button);
1.138 + mRestoreButton.setOnClickListener(new View.OnClickListener() {
1.139 + @Override
1.140 + public void onClick(View v) {
1.141 + openAllTabs();
1.142 + }
1.143 + });
1.144 + }
1.145 +
1.146 + @Override
1.147 + public void onDestroyView() {
1.148 + super.onDestroyView();
1.149 + mList = null;
1.150 + mTitle = null;
1.151 + mEmptyView = null;
1.152 + mRestoreButton = null;
1.153 + }
1.154 +
1.155 + @Override
1.156 + public void onActivityCreated(Bundle savedInstanceState) {
1.157 + super.onActivityCreated(savedInstanceState);
1.158 +
1.159 + // Intialize adapter
1.160 + mAdapter = new LastTabsAdapter(getActivity());
1.161 + mList.setAdapter(mAdapter);
1.162 +
1.163 + // Create callbacks before the initial loader is started
1.164 + mCursorLoaderCallbacks = new CursorLoaderCallbacks();
1.165 + loadIfVisible();
1.166 + }
1.167 +
1.168 + private void updateUiFromCursor(Cursor c) {
1.169 + if (c != null && c.getCount() > 0) {
1.170 + if (mTitle != null) {
1.171 + mTitle.setVisibility(View.VISIBLE);
1.172 + }
1.173 + mRestoreButton.setVisibility(View.VISIBLE);
1.174 + return;
1.175 + }
1.176 +
1.177 + // Cursor is empty, so hide the title and set the
1.178 + // empty view if it hasn't been set already.
1.179 + if (mTitle != null) {
1.180 + mTitle.setVisibility(View.GONE);
1.181 + }
1.182 + mRestoreButton.setVisibility(View.GONE);
1.183 +
1.184 + if (mEmptyView == null) {
1.185 + // Set empty panel view. We delay this so that the empty view won't flash.
1.186 + final ViewStub emptyViewStub = (ViewStub) getView().findViewById(R.id.home_empty_view_stub);
1.187 + mEmptyView = emptyViewStub.inflate();
1.188 +
1.189 + final ImageView emptyIcon = (ImageView) mEmptyView.findViewById(R.id.home_empty_image);
1.190 + emptyIcon.setImageResource(R.drawable.icon_last_tabs_empty);
1.191 +
1.192 + final TextView emptyText = (TextView) mEmptyView.findViewById(R.id.home_empty_text);
1.193 + emptyText.setText(R.string.home_last_tabs_empty);
1.194 +
1.195 + mList.setEmptyView(mEmptyView);
1.196 + }
1.197 + }
1.198 +
1.199 + @Override
1.200 + protected void load() {
1.201 + getLoaderManager().initLoader(LOADER_ID_LAST_TABS, null, mCursorLoaderCallbacks);
1.202 + }
1.203 +
1.204 + private void openAllTabs() {
1.205 + final Cursor c = mAdapter.getCursor();
1.206 + if (c == null || !c.moveToFirst()) {
1.207 + return;
1.208 + }
1.209 +
1.210 + final String[] urls = new String[c.getCount()];
1.211 +
1.212 + do {
1.213 + urls[c.getPosition()] = c.getString(c.getColumnIndexOrThrow(Combined.URL));
1.214 + } while (c.moveToNext());
1.215 +
1.216 + Telemetry.sendUIEvent(TelemetryContract.Event.LOAD_URL, TelemetryContract.Method.BUTTON);
1.217 +
1.218 + mNewTabsListener.onNewTabs(urls);
1.219 + }
1.220 +
1.221 + private static class LastTabsCursorLoader extends SimpleCursorLoader {
1.222 + public LastTabsCursorLoader(Context context) {
1.223 + super(context);
1.224 + }
1.225 +
1.226 + @Override
1.227 + public Cursor loadCursor() {
1.228 + final Context context = getContext();
1.229 +
1.230 + final String jsonString = GeckoProfile.get(context).readSessionFile(true);
1.231 + if (jsonString == null) {
1.232 + // No previous session data
1.233 + return null;
1.234 + }
1.235 +
1.236 + final MatrixCursor c = new MatrixCursor(new String[] { Combined._ID,
1.237 + Combined.URL,
1.238 + Combined.TITLE });
1.239 +
1.240 + new SessionParser() {
1.241 + @Override
1.242 + public void onTabRead(SessionTab tab) {
1.243 + final String url = tab.getUrl();
1.244 +
1.245 + // Don't show last tabs for about:home
1.246 + if (AboutPages.isAboutHome(url)) {
1.247 + return;
1.248 + }
1.249 +
1.250 + final RowBuilder row = c.newRow();
1.251 + row.add(-1);
1.252 + row.add(url);
1.253 +
1.254 + final String title = tab.getTitle();
1.255 + row.add(title);
1.256 + }
1.257 + }.parse(jsonString);
1.258 +
1.259 + return c;
1.260 + }
1.261 + }
1.262 +
1.263 + private static class LastTabsAdapter extends CursorAdapter {
1.264 + public LastTabsAdapter(Context context) {
1.265 + super(context, null, 0);
1.266 + }
1.267 +
1.268 + @Override
1.269 + public void bindView(View view, Context context, Cursor cursor) {
1.270 + ((TwoLinePageRow) view).updateFromCursor(cursor);
1.271 + }
1.272 +
1.273 + @Override
1.274 + public View newView(Context context, Cursor cursor, ViewGroup parent) {
1.275 + return LayoutInflater.from(context).inflate(R.layout.home_item_row, parent, false);
1.276 + }
1.277 + }
1.278 +
1.279 + private class CursorLoaderCallbacks implements LoaderCallbacks<Cursor> {
1.280 + @Override
1.281 + public Loader<Cursor> onCreateLoader(int id, Bundle args) {
1.282 + return new LastTabsCursorLoader(getActivity());
1.283 + }
1.284 +
1.285 + @Override
1.286 + public void onLoadFinished(Loader<Cursor> loader, Cursor c) {
1.287 + mAdapter.swapCursor(c);
1.288 + updateUiFromCursor(c);
1.289 + }
1.290 +
1.291 + @Override
1.292 + public void onLoaderReset(Loader<Cursor> loader) {
1.293 + mAdapter.swapCursor(null);
1.294 + }
1.295 + }
1.296 +}
