| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * 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.android.documentsui; |
| |
| import android.app.Fragment; |
| import android.app.FragmentManager; |
| import android.app.FragmentTransaction; |
| import android.app.LoaderManager.LoaderCallbacks; |
| import android.content.Context; |
| import android.content.Loader; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.DocumentsContract; |
| import android.text.format.DateUtils; |
| import android.text.format.Formatter; |
| import android.util.SparseBooleanArray; |
| import android.view.ActionMode; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.AbsListView; |
| import android.widget.AbsListView.MultiChoiceModeListener; |
| import android.widget.AdapterView; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.BaseAdapter; |
| import android.widget.GridView; |
| import android.widget.ImageView; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import com.android.documentsui.DocumentsActivity.DisplayState; |
| import com.android.documentsui.model.Document; |
| import com.android.documentsui.model.Root; |
| import com.android.internal.util.Predicate; |
| import com.google.android.collect.Lists; |
| |
| import java.text.DateFormat; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Display the documents inside a single directory. |
| */ |
| public class DirectoryFragment extends Fragment { |
| |
| private View mEmptyView; |
| private ListView mListView; |
| private GridView mGridView; |
| |
| private AbsListView mCurrentView; |
| |
| private Predicate<Document> mFilter; |
| |
| public static final int TYPE_NORMAL = 1; |
| public static final int TYPE_SEARCH = 2; |
| public static final int TYPE_RECENT_OPEN = 3; |
| |
| private int mType = TYPE_NORMAL; |
| |
| private DocumentsAdapter mAdapter; |
| private LoaderCallbacks<List<Document>> mCallbacks; |
| |
| private static final String EXTRA_TYPE = "type"; |
| private static final String EXTRA_URI = "uri"; |
| |
| private static AtomicInteger sLoaderId = new AtomicInteger(4000); |
| |
| private final int mLoaderId = sLoaderId.incrementAndGet(); |
| |
| public static void showNormal(FragmentManager fm, Uri uri) { |
| show(fm, TYPE_NORMAL, uri); |
| } |
| |
| public static void showSearch(FragmentManager fm, Uri uri, String query) { |
| final Uri searchUri = DocumentsContract.buildSearchUri(uri, query); |
| show(fm, TYPE_SEARCH, searchUri); |
| } |
| |
| public static void showRecentsOpen(FragmentManager fm) { |
| show(fm, TYPE_RECENT_OPEN, null); |
| } |
| |
| private static void show(FragmentManager fm, int type, Uri uri) { |
| final Bundle args = new Bundle(); |
| args.putInt(EXTRA_TYPE, type); |
| args.putParcelable(EXTRA_URI, uri); |
| |
| final DirectoryFragment fragment = new DirectoryFragment(); |
| fragment.setArguments(args); |
| |
| final FragmentTransaction ft = fm.beginTransaction(); |
| ft.replace(R.id.container_directory, fragment); |
| ft.commitAllowingStateLoss(); |
| } |
| |
| public static DirectoryFragment get(FragmentManager fm) { |
| // TODO: deal with multiple directories shown at once |
| return (DirectoryFragment) fm.findFragmentById(R.id.container_directory); |
| } |
| |
| @Override |
| public View onCreateView( |
| LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { |
| final Context context = inflater.getContext(); |
| |
| final View view = inflater.inflate(R.layout.fragment_directory, container, false); |
| |
| mEmptyView = view.findViewById(android.R.id.empty); |
| |
| mListView = (ListView) view.findViewById(R.id.list); |
| mListView.setOnItemClickListener(mItemListener); |
| mListView.setMultiChoiceModeListener(mMultiListener); |
| |
| mGridView = (GridView) view.findViewById(R.id.grid); |
| mGridView.setOnItemClickListener(mItemListener); |
| mGridView.setMultiChoiceModeListener(mMultiListener); |
| |
| mAdapter = new DocumentsAdapter(); |
| |
| final Uri uri = getArguments().getParcelable(EXTRA_URI); |
| mType = getArguments().getInt(EXTRA_TYPE); |
| |
| mCallbacks = new LoaderCallbacks<List<Document>>() { |
| @Override |
| public Loader<List<Document>> onCreateLoader(int id, Bundle args) { |
| final DisplayState state = getDisplayState(DirectoryFragment.this); |
| mFilter = new MimePredicate(state.acceptMimes); |
| |
| Uri contentsUri; |
| if (mType == TYPE_NORMAL) { |
| contentsUri = DocumentsContract.buildContentsUri(uri); |
| } else if (mType == TYPE_RECENT_OPEN) { |
| contentsUri = RecentsProvider.buildRecentOpen(); |
| } else { |
| contentsUri = uri; |
| } |
| |
| if (state.localOnly) { |
| contentsUri = DocumentsContract.setLocalOnly(contentsUri); |
| } |
| |
| final Comparator<Document> sortOrder; |
| if (state.sortOrder == DisplayState.SORT_ORDER_DATE || mType == TYPE_RECENT_OPEN) { |
| sortOrder = new Document.DateComparator(); |
| } else if (state.sortOrder == DisplayState.SORT_ORDER_NAME) { |
| sortOrder = new Document.NameComparator(); |
| } else if (state.sortOrder == DisplayState.SORT_ORDER_SIZE) { |
| sortOrder = new Document.SizeComparator(); |
| } else { |
| throw new IllegalArgumentException("Unknown sort order " + state.sortOrder); |
| } |
| |
| return new DirectoryLoader(context, contentsUri, mType, null, sortOrder); |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<List<Document>> loader, List<Document> data) { |
| mAdapter.swapDocuments(data); |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<List<Document>> loader) { |
| mAdapter.swapDocuments(null); |
| } |
| }; |
| |
| updateDisplayState(); |
| |
| return view; |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| |
| final Context context = getActivity(); |
| getDisplayState(this).showSize = SettingsActivity.getDisplayFileSize(context); |
| |
| getLoaderManager().restartLoader(mLoaderId, getArguments(), mCallbacks); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| getLoaderManager().destroyLoader(mLoaderId); |
| } |
| |
| public void updateDisplayState() { |
| final DisplayState state = getDisplayState(this); |
| |
| // TODO: avoid kicking loader when nothing changed |
| getLoaderManager().restartLoader(mLoaderId, getArguments(), mCallbacks); |
| mListView.smoothScrollToPosition(0); |
| mGridView.smoothScrollToPosition(0); |
| |
| mListView.setVisibility(state.mode == DisplayState.MODE_LIST ? View.VISIBLE : View.GONE); |
| mGridView.setVisibility(state.mode == DisplayState.MODE_GRID ? View.VISIBLE : View.GONE); |
| |
| final int choiceMode; |
| if (state.allowMultiple) { |
| choiceMode = ListView.CHOICE_MODE_MULTIPLE_MODAL; |
| } else { |
| choiceMode = ListView.CHOICE_MODE_NONE; |
| } |
| |
| if (state.mode == DisplayState.MODE_GRID) { |
| mListView.setAdapter(null); |
| mListView.setChoiceMode(ListView.CHOICE_MODE_NONE); |
| mGridView.setAdapter(mAdapter); |
| mGridView.setColumnWidth(getResources().getDimensionPixelSize(R.dimen.grid_width)); |
| mGridView.setNumColumns(GridView.AUTO_FIT); |
| mGridView.setChoiceMode(choiceMode); |
| mCurrentView = mGridView; |
| } else if (state.mode == DisplayState.MODE_LIST) { |
| mGridView.setAdapter(null); |
| mGridView.setChoiceMode(ListView.CHOICE_MODE_NONE); |
| mListView.setAdapter(mAdapter); |
| mListView.setChoiceMode(choiceMode); |
| mCurrentView = mListView; |
| } else { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| private OnItemClickListener mItemListener = new OnItemClickListener() { |
| @Override |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| final Document doc = mAdapter.getItem(position); |
| ((DocumentsActivity) getActivity()).onDocumentPicked(doc); |
| } |
| }; |
| |
| private MultiChoiceModeListener mMultiListener = new MultiChoiceModeListener() { |
| @Override |
| public boolean onCreateActionMode(ActionMode mode, Menu menu) { |
| mode.getMenuInflater().inflate(R.menu.mode_directory, menu); |
| return true; |
| } |
| |
| @Override |
| public boolean onPrepareActionMode(ActionMode mode, Menu menu) { |
| return true; |
| } |
| |
| @Override |
| public boolean onActionItemClicked(ActionMode mode, MenuItem item) { |
| if (item.getItemId() == R.id.menu_open) { |
| final Uri uri = getArguments().getParcelable(EXTRA_URI); |
| final SparseBooleanArray checked = mCurrentView.getCheckedItemPositions(); |
| final ArrayList<Document> docs = Lists.newArrayList(); |
| |
| final int size = checked.size(); |
| for (int i = 0; i < size; i++) { |
| if (checked.valueAt(i)) { |
| final Document doc = mAdapter.getItem(checked.keyAt(i)); |
| docs.add(doc); |
| } |
| } |
| |
| ((DocumentsActivity) getActivity()).onDocumentsPicked(docs); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public void onDestroyActionMode(ActionMode mode) { |
| // ignored |
| } |
| |
| @Override |
| public void onItemCheckedStateChanged( |
| ActionMode mode, int position, long id, boolean checked) { |
| if (checked) { |
| // Directories cannot be checked |
| final Document doc = mAdapter.getItem(position); |
| if (doc.isDirectory()) { |
| mCurrentView.setItemChecked(position, false); |
| } |
| } |
| |
| mode.setTitle(getResources() |
| .getString(R.string.mode_selected_count, mCurrentView.getCheckedItemCount())); |
| } |
| }; |
| |
| private static DisplayState getDisplayState(Fragment fragment) { |
| return ((DocumentsActivity) fragment.getActivity()).getDisplayState(); |
| } |
| |
| private class DocumentsAdapter extends BaseAdapter { |
| private List<Document> mDocuments; |
| |
| public DocumentsAdapter() { |
| } |
| |
| public void swapDocuments(List<Document> documents) { |
| mDocuments = documents; |
| |
| if (documents != null && documents.isEmpty()) { |
| mEmptyView.setVisibility(View.VISIBLE); |
| } else { |
| mEmptyView.setVisibility(View.GONE); |
| } |
| |
| notifyDataSetChanged(); |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| final Context context = parent.getContext(); |
| final DisplayState state = getDisplayState(DirectoryFragment.this); |
| |
| if (convertView == null) { |
| final LayoutInflater inflater = LayoutInflater.from(context); |
| if (state.mode == DisplayState.MODE_LIST) { |
| convertView = inflater.inflate(R.layout.item_doc_list, parent, false); |
| } else if (state.mode == DisplayState.MODE_GRID) { |
| convertView = inflater.inflate(R.layout.item_doc_grid, parent, false); |
| } else { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| final Document doc = getItem(position); |
| |
| final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); |
| final TextView title = (TextView) convertView.findViewById(android.R.id.title); |
| final View summaryGrid = convertView.findViewById(R.id.summary_grid); |
| final ImageView icon1 = (ImageView) convertView.findViewById(android.R.id.icon1); |
| final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); |
| final TextView date = (TextView) convertView.findViewById(R.id.date); |
| final TextView size = (TextView) convertView.findViewById(R.id.size); |
| |
| if (doc.isThumbnailSupported()) { |
| // TODO: load thumbnails async |
| icon.setImageURI(doc.uri); |
| } else { |
| icon.setImageDrawable(RootsCache.resolveDocumentIcon( |
| context, doc.uri.getAuthority(), doc.mimeType)); |
| } |
| |
| title.setText(doc.displayName); |
| |
| if (mType == TYPE_NORMAL || mType == TYPE_SEARCH) { |
| icon1.setVisibility(View.GONE); |
| if (doc.summary != null) { |
| summary.setText(doc.summary); |
| summary.setVisibility(View.VISIBLE); |
| } else { |
| summary.setVisibility(View.INVISIBLE); |
| } |
| } else if (mType == TYPE_RECENT_OPEN) { |
| final Root root = RootsCache.findRoot(context, doc); |
| icon1.setVisibility(View.VISIBLE); |
| icon1.setImageDrawable(root.icon); |
| summary.setText(root.getDirectoryString()); |
| summary.setVisibility(View.VISIBLE); |
| } |
| |
| if (summaryGrid != null) { |
| summaryGrid.setVisibility( |
| (summary.getVisibility() == View.VISIBLE) ? View.VISIBLE : View.GONE); |
| } |
| |
| // TODO: omit year from format |
| date.setText(DateUtils.formatSameDayTime( |
| doc.lastModified, System.currentTimeMillis(), DateFormat.SHORT, |
| DateFormat.SHORT)); |
| |
| if (state.showSize) { |
| size.setVisibility(View.VISIBLE); |
| if (doc.isDirectory()) { |
| size.setText(null); |
| } else { |
| size.setText(Formatter.formatFileSize(context, doc.size)); |
| } |
| } else { |
| size.setVisibility(View.GONE); |
| } |
| |
| return convertView; |
| } |
| |
| @Override |
| public int getCount() { |
| return mDocuments != null ? mDocuments.size() : 0; |
| } |
| |
| @Override |
| public Document getItem(int position) { |
| return mDocuments.get(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return getItem(position).uri.hashCode(); |
| } |
| |
| @Override |
| public boolean areAllItemsEnabled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isEnabled(int position) { |
| final Document doc = getItem(position); |
| return mFilter.apply(doc); |
| } |
| } |
| } |