1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/home/BookmarksPanel.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,251 @@
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 java.util.List;
1.12 +
1.13 +import org.mozilla.gecko.R;
1.14 +import org.mozilla.gecko.db.BrowserContract.Bookmarks;
1.15 +import org.mozilla.gecko.db.BrowserDB;
1.16 +import org.mozilla.gecko.home.BookmarksListAdapter.FolderInfo;
1.17 +import org.mozilla.gecko.home.BookmarksListAdapter.OnRefreshFolderListener;
1.18 +import org.mozilla.gecko.home.BookmarksListAdapter.RefreshType;
1.19 +import org.mozilla.gecko.home.HomePager.OnUrlOpenListener;
1.20 +
1.21 +import android.app.Activity;
1.22 +import android.content.Context;
1.23 +import android.content.res.Configuration;
1.24 +import android.database.Cursor;
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.view.LayoutInflater;
1.29 +import android.view.View;
1.30 +import android.view.ViewGroup;
1.31 +import android.view.ViewStub;
1.32 +import android.widget.ImageView;
1.33 +import android.widget.TextView;
1.34 +
1.35 +/**
1.36 + * A page in about:home that displays a ListView of bookmarks.
1.37 + */
1.38 +public class BookmarksPanel extends HomeFragment {
1.39 + public static final String LOGTAG = "GeckoBookmarksPanel";
1.40 +
1.41 + // Cursor loader ID for list of bookmarks.
1.42 + private static final int LOADER_ID_BOOKMARKS_LIST = 0;
1.43 +
1.44 + // Information about the target bookmarks folder.
1.45 + private static final String BOOKMARKS_FOLDER_INFO = "folder_info";
1.46 +
1.47 + // Refresh type for folder refreshing loader.
1.48 + private static final String BOOKMARKS_REFRESH_TYPE = "refresh_type";
1.49 +
1.50 + // List of bookmarks.
1.51 + private BookmarksListView mList;
1.52 +
1.53 + // Adapter for list of bookmarks.
1.54 + private BookmarksListAdapter mListAdapter;
1.55 +
1.56 + // Adapter's parent stack.
1.57 + private List<FolderInfo> mSavedParentStack;
1.58 +
1.59 + // Reference to the View to display when there are no results.
1.60 + private View mEmptyView;
1.61 +
1.62 + // Callback for cursor loaders.
1.63 + private CursorLoaderCallbacks mLoaderCallbacks;
1.64 +
1.65 + @Override
1.66 + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
1.67 + final View view = inflater.inflate(R.layout.home_bookmarks_panel, container, false);
1.68 +
1.69 + mList = (BookmarksListView) view.findViewById(R.id.bookmarks_list);
1.70 +
1.71 + mList.setContextMenuInfoFactory(new HomeContextMenuInfo.Factory() {
1.72 + @Override
1.73 + public HomeContextMenuInfo makeInfoForCursor(View view, int position, long id, Cursor cursor) {
1.74 + final int type = cursor.getInt(cursor.getColumnIndexOrThrow(Bookmarks.TYPE));
1.75 + if (type == Bookmarks.TYPE_FOLDER) {
1.76 + // We don't show a context menu for folders
1.77 + return null;
1.78 + }
1.79 + final HomeContextMenuInfo info = new HomeContextMenuInfo(view, position, id);
1.80 + info.url = cursor.getString(cursor.getColumnIndexOrThrow(Bookmarks.URL));
1.81 + info.title = cursor.getString(cursor.getColumnIndexOrThrow(Bookmarks.TITLE));
1.82 + info.bookmarkId = cursor.getInt(cursor.getColumnIndexOrThrow(Bookmarks._ID));
1.83 + return info;
1.84 + }
1.85 + });
1.86 +
1.87 + return view;
1.88 + }
1.89 +
1.90 + @Override
1.91 + public void onViewCreated(View view, Bundle savedInstanceState) {
1.92 + super.onViewCreated(view, savedInstanceState);
1.93 +
1.94 + OnUrlOpenListener listener = null;
1.95 + try {
1.96 + listener = (OnUrlOpenListener) getActivity();
1.97 + } catch (ClassCastException e) {
1.98 + throw new ClassCastException(getActivity().toString()
1.99 + + " must implement HomePager.OnUrlOpenListener");
1.100 + }
1.101 +
1.102 + mList.setTag(HomePager.LIST_TAG_BOOKMARKS);
1.103 + mList.setOnUrlOpenListener(listener);
1.104 +
1.105 + registerForContextMenu(mList);
1.106 + }
1.107 +
1.108 + @Override
1.109 + public void onActivityCreated(Bundle savedInstanceState) {
1.110 + super.onActivityCreated(savedInstanceState);
1.111 +
1.112 + final Activity activity = getActivity();
1.113 +
1.114 + // Setup the list adapter.
1.115 + mListAdapter = new BookmarksListAdapter(activity, null, mSavedParentStack);
1.116 + mListAdapter.setOnRefreshFolderListener(new OnRefreshFolderListener() {
1.117 + @Override
1.118 + public void onRefreshFolder(FolderInfo folderInfo, RefreshType refreshType) {
1.119 + // Restart the loader with folder as the argument.
1.120 + Bundle bundle = new Bundle();
1.121 + bundle.putParcelable(BOOKMARKS_FOLDER_INFO, folderInfo);
1.122 + bundle.putParcelable(BOOKMARKS_REFRESH_TYPE, refreshType);
1.123 + getLoaderManager().restartLoader(LOADER_ID_BOOKMARKS_LIST, bundle, mLoaderCallbacks);
1.124 + }
1.125 + });
1.126 + mList.setAdapter(mListAdapter);
1.127 +
1.128 + // Create callbacks before the initial loader is started.
1.129 + mLoaderCallbacks = new CursorLoaderCallbacks();
1.130 + loadIfVisible();
1.131 + }
1.132 +
1.133 + @Override
1.134 + public void onDestroyView() {
1.135 + mList = null;
1.136 + mListAdapter = null;
1.137 + mEmptyView = null;
1.138 + super.onDestroyView();
1.139 + }
1.140 +
1.141 + @Override
1.142 + public void onConfigurationChanged(Configuration newConfig) {
1.143 + super.onConfigurationChanged(newConfig);
1.144 +
1.145 + // Reattach the fragment, forcing a reinflation of its view.
1.146 + // We use commitAllowingStateLoss() instead of commit() here to avoid
1.147 + // an IllegalStateException. If the phone is rotated while Fennec
1.148 + // is in the background, onConfigurationChanged() is fired.
1.149 + // onConfigurationChanged() is called before onResume(), so
1.150 + // using commit() would throw an IllegalStateException since it can't
1.151 + // be used between the Activity's onSaveInstanceState() and
1.152 + // onResume().
1.153 + if (isVisible()) {
1.154 + // The parent stack is saved just so that the folder state can be
1.155 + // restored on rotation.
1.156 + mSavedParentStack = mListAdapter.getParentStack();
1.157 +
1.158 + getFragmentManager().beginTransaction()
1.159 + .detach(this)
1.160 + .attach(this)
1.161 + .commitAllowingStateLoss();
1.162 + }
1.163 + }
1.164 +
1.165 + @Override
1.166 + protected void load() {
1.167 + getLoaderManager().initLoader(LOADER_ID_BOOKMARKS_LIST, null, mLoaderCallbacks);
1.168 + }
1.169 +
1.170 + private void updateUiFromCursor(Cursor c) {
1.171 + if ((c == null || c.getCount() == 0) && mEmptyView == null) {
1.172 + // Set empty page view. We delay this so that the empty view won't flash.
1.173 + final ViewStub emptyViewStub = (ViewStub) getView().findViewById(R.id.home_empty_view_stub);
1.174 + mEmptyView = emptyViewStub.inflate();
1.175 +
1.176 + final ImageView emptyIcon = (ImageView) mEmptyView.findViewById(R.id.home_empty_image);
1.177 + emptyIcon.setImageResource(R.drawable.icon_bookmarks_empty);
1.178 +
1.179 + final TextView emptyText = (TextView) mEmptyView.findViewById(R.id.home_empty_text);
1.180 + emptyText.setText(R.string.home_bookmarks_empty);
1.181 +
1.182 + mList.setEmptyView(mEmptyView);
1.183 + }
1.184 + }
1.185 +
1.186 + /**
1.187 + * Loader for the list for bookmarks.
1.188 + */
1.189 + private static class BookmarksLoader extends SimpleCursorLoader {
1.190 + private final FolderInfo mFolderInfo;
1.191 + private final RefreshType mRefreshType;
1.192 +
1.193 + public BookmarksLoader(Context context) {
1.194 + this(context, new FolderInfo(Bookmarks.FIXED_ROOT_ID), RefreshType.CHILD);
1.195 + }
1.196 +
1.197 + public BookmarksLoader(Context context, FolderInfo folderInfo, RefreshType refreshType) {
1.198 + super(context);
1.199 + mFolderInfo = folderInfo;
1.200 + mRefreshType = refreshType;
1.201 + }
1.202 +
1.203 + @Override
1.204 + public Cursor loadCursor() {
1.205 + return BrowserDB.getBookmarksInFolder(getContext().getContentResolver(), mFolderInfo.id);
1.206 + }
1.207 +
1.208 + @Override
1.209 + public void onContentChanged() {
1.210 + // Invalidate the cached value that keeps track of whether or
1.211 + // not desktop bookmarks exist.
1.212 + BrowserDB.invalidateCachedState();
1.213 + super.onContentChanged();
1.214 + }
1.215 +
1.216 + public FolderInfo getFolderInfo() {
1.217 + return mFolderInfo;
1.218 + }
1.219 +
1.220 + public RefreshType getRefreshType() {
1.221 + return mRefreshType;
1.222 + }
1.223 + }
1.224 +
1.225 + /**
1.226 + * Loader callbacks for the LoaderManager of this fragment.
1.227 + */
1.228 + private class CursorLoaderCallbacks implements LoaderCallbacks<Cursor> {
1.229 + @Override
1.230 + public Loader<Cursor> onCreateLoader(int id, Bundle args) {
1.231 + if (args == null) {
1.232 + return new BookmarksLoader(getActivity());
1.233 + } else {
1.234 + FolderInfo folderInfo = (FolderInfo) args.getParcelable(BOOKMARKS_FOLDER_INFO);
1.235 + RefreshType refreshType = (RefreshType) args.getParcelable(BOOKMARKS_REFRESH_TYPE);
1.236 + return new BookmarksLoader(getActivity(), folderInfo, refreshType);
1.237 + }
1.238 + }
1.239 +
1.240 + @Override
1.241 + public void onLoadFinished(Loader<Cursor> loader, Cursor c) {
1.242 + BookmarksLoader bl = (BookmarksLoader) loader;
1.243 + mListAdapter.swapCursor(c, bl.getFolderInfo(), bl.getRefreshType());
1.244 + updateUiFromCursor(c);
1.245 + }
1.246 +
1.247 + @Override
1.248 + public void onLoaderReset(Loader<Cursor> loader) {
1.249 + if (mList != null) {
1.250 + mListAdapter.swapCursor(null);
1.251 + }
1.252 + }
1.253 + }
1.254 +}
