| /* |
| * 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 static com.android.documentsui.Shared.DEBUG; |
| |
| import android.app.Activity; |
| import android.app.Fragment; |
| import android.app.FragmentManager; |
| import android.app.FragmentTransaction; |
| import android.app.LoaderManager.LoaderCallbacks; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.Loader; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.Settings; |
| import android.support.annotation.Nullable; |
| import android.text.TextUtils; |
| import android.text.format.Formatter; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.AdapterView; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.AdapterView.OnItemLongClickListener; |
| import android.widget.ArrayAdapter; |
| import android.widget.ImageView; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import com.android.documentsui.model.RootInfo; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * Display list of known storage backend roots. |
| */ |
| public class RootsFragment extends Fragment { |
| |
| private static final String TAG = "RootsFragment"; |
| private static final String EXTRA_INCLUDE_APPS = "includeApps"; |
| |
| private ListView mList; |
| private RootsAdapter mAdapter; |
| private LoaderCallbacks<Collection<RootInfo>> mCallbacks; |
| |
| |
| public static void show(FragmentManager fm, Intent includeApps) { |
| final Bundle args = new Bundle(); |
| args.putParcelable(EXTRA_INCLUDE_APPS, includeApps); |
| |
| final RootsFragment fragment = new RootsFragment(); |
| fragment.setArguments(args); |
| |
| final FragmentTransaction ft = fm.beginTransaction(); |
| ft.replace(R.id.container_roots, fragment); |
| ft.commitAllowingStateLoss(); |
| } |
| |
| public static RootsFragment get(FragmentManager fm) { |
| return (RootsFragment) fm.findFragmentById(R.id.container_roots); |
| } |
| |
| @Override |
| public View onCreateView( |
| LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { |
| |
| final View view = inflater.inflate(R.layout.fragment_roots, container, false); |
| mList = (ListView) view.findViewById(R.id.roots_list); |
| mList.setOnItemClickListener(mItemListener); |
| mList.setChoiceMode(ListView.CHOICE_MODE_SINGLE); |
| return view; |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| |
| final Context context = getActivity(); |
| final RootsCache roots = DocumentsApplication.getRootsCache(context); |
| final State state = ((BaseActivity) context).getDisplayState(); |
| |
| mCallbacks = new LoaderCallbacks<Collection<RootInfo>>() { |
| @Override |
| public Loader<Collection<RootInfo>> onCreateLoader(int id, Bundle args) { |
| return new RootsLoader(context, roots, state); |
| } |
| |
| @Override |
| public void onLoadFinished( |
| Loader<Collection<RootInfo>> loader, Collection<RootInfo> result) { |
| if (!isAdded()) { |
| return; |
| } |
| |
| Intent handlerAppIntent = getArguments().getParcelable(EXTRA_INCLUDE_APPS); |
| |
| mAdapter = new RootsAdapter(context, result, handlerAppIntent, state); |
| mList.setAdapter(mAdapter); |
| |
| onCurrentRootChanged(); |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<Collection<RootInfo>> loader) { |
| mAdapter = null; |
| mList.setAdapter(null); |
| } |
| }; |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| onDisplayStateChanged(); |
| } |
| |
| public void onDisplayStateChanged() { |
| final Context context = getActivity(); |
| final State state = ((BaseActivity) context).getDisplayState(); |
| |
| if (state.action == State.ACTION_GET_CONTENT) { |
| mList.setOnItemLongClickListener(mItemLongClickListener); |
| } else { |
| mList.setOnItemLongClickListener(null); |
| mList.setLongClickable(false); |
| } |
| |
| getLoaderManager().restartLoader(2, null, mCallbacks); |
| } |
| |
| public void onCurrentRootChanged() { |
| if (mAdapter == null) { |
| return; |
| } |
| |
| final RootInfo root = ((BaseActivity) getActivity()).getCurrentRoot(); |
| for (int i = 0; i < mAdapter.getCount(); i++) { |
| final Object item = mAdapter.getItem(i); |
| if (item instanceof RootItem) { |
| final RootInfo testRoot = ((RootItem) item).root; |
| if (Objects.equals(testRoot, root)) { |
| mList.setItemChecked(i, true); |
| mList.setSelection(i); |
| return; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Attempts to shift focus back to the navigation drawer. |
| */ |
| public void requestFocus() { |
| mList.requestFocus(); |
| } |
| |
| private void showAppDetails(ResolveInfo ri) { |
| final Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); |
| intent.setData(Uri.fromParts("package", ri.activityInfo.packageName, null)); |
| intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| startActivity(intent); |
| } |
| |
| private OnItemClickListener mItemListener = new OnItemClickListener() { |
| @Override |
| public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
| Item item = mAdapter.getItem(position); |
| if (item instanceof RootItem) { |
| BaseActivity activity = BaseActivity.get(RootsFragment.this); |
| RootInfo newRoot = ((RootItem) item).root; |
| Metrics.logRootVisited(getActivity(), newRoot); |
| activity.onRootPicked(newRoot); |
| } else if (item instanceof AppItem) { |
| DocumentsActivity activity = DocumentsActivity.get(RootsFragment.this); |
| ResolveInfo info = ((AppItem) item).info; |
| Metrics.logAppVisited(getActivity(), info); |
| activity.onAppPicked(info); |
| } else if (item instanceof SpacerItem) { |
| if (DEBUG) Log.d(TAG, "Ignoring click on spacer item."); |
| } else { |
| throw new IllegalStateException("Unknown root: " + item); |
| } |
| } |
| }; |
| |
| private OnItemLongClickListener mItemLongClickListener = new OnItemLongClickListener() { |
| @Override |
| public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { |
| final Item item = mAdapter.getItem(position); |
| if (item instanceof AppItem) { |
| showAppDetails(((AppItem) item).info); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| }; |
| |
| private static abstract class Item { |
| private final int mLayoutId; |
| |
| public Item(int layoutId) { |
| mLayoutId = layoutId; |
| } |
| |
| public View getView(View convertView, ViewGroup parent) { |
| if (convertView == null) { |
| convertView = LayoutInflater.from(parent.getContext()) |
| .inflate(mLayoutId, parent, false); |
| } |
| bindView(convertView); |
| return convertView; |
| } |
| |
| public abstract void bindView(View convertView); |
| } |
| |
| private static class RootItem extends Item { |
| public final RootInfo root; |
| |
| public RootItem(RootInfo root) { |
| super(R.layout.item_root); |
| this.root = root; |
| } |
| |
| @Override |
| public void bindView(View convertView) { |
| final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); |
| final TextView title = (TextView) convertView.findViewById(android.R.id.title); |
| final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); |
| |
| final Context context = convertView.getContext(); |
| icon.setImageDrawable(root.loadDrawerIcon(context)); |
| title.setText(root.title); |
| |
| // Show available space if no summary |
| String summaryText = root.summary; |
| if (TextUtils.isEmpty(summaryText) && root.availableBytes >= 0) { |
| summaryText = context.getString(R.string.root_available_bytes, |
| Formatter.formatFileSize(context, root.availableBytes)); |
| } |
| |
| summary.setText(summaryText); |
| summary.setVisibility(TextUtils.isEmpty(summaryText) ? View.GONE : View.VISIBLE); |
| } |
| } |
| |
| private static class SpacerItem extends Item { |
| public SpacerItem() { |
| super(R.layout.item_root_spacer); |
| } |
| |
| @Override |
| public void bindView(View convertView) { |
| // Nothing to bind |
| } |
| } |
| |
| private static class AppItem extends Item { |
| public final ResolveInfo info; |
| |
| public AppItem(ResolveInfo info) { |
| super(R.layout.item_root); |
| this.info = info; |
| } |
| |
| @Override |
| public void bindView(View convertView) { |
| final ImageView icon = (ImageView) convertView.findViewById(android.R.id.icon); |
| final TextView title = (TextView) convertView.findViewById(android.R.id.title); |
| final TextView summary = (TextView) convertView.findViewById(android.R.id.summary); |
| |
| final PackageManager pm = convertView.getContext().getPackageManager(); |
| icon.setImageDrawable(info.loadIcon(pm)); |
| title.setText(info.loadLabel(pm)); |
| |
| // TODO: match existing summary behavior from disambig dialog |
| summary.setVisibility(View.GONE); |
| } |
| } |
| |
| private static class RootsAdapter extends ArrayAdapter<Item> { |
| |
| /** |
| * @param handlerAppIntent When not null, apps capable of handling the original |
| * intent will be included in list of roots (in special section at bottom). |
| */ |
| public RootsAdapter(Context context, Collection<RootInfo> roots, |
| @Nullable Intent handlerAppIntent, State state) { |
| super(context, 0); |
| |
| final List<RootItem> libraries = new ArrayList<>(); |
| final List<RootItem> others = new ArrayList<>(); |
| |
| for (final RootInfo root : roots) { |
| final RootItem item = new RootItem(root); |
| |
| if (root.isHome() && |
| !Shared.shouldShowDocumentsRoot(context, ((Activity) context).getIntent())) { |
| continue; |
| } else if (root.isLibrary()) { |
| if (DEBUG) Log.d(TAG, "Adding " + root + " as library."); |
| libraries.add(item); |
| } else { |
| if (DEBUG) Log.d(TAG, "Adding " + root + " as non-library."); |
| others.add(item); |
| } |
| } |
| |
| final RootComparator comp = new RootComparator(); |
| Collections.sort(libraries, comp); |
| Collections.sort(others, comp); |
| |
| addAll(libraries); |
| // Only add the spacer if it is actually separating something. |
| if (!libraries.isEmpty() && !others.isEmpty()) { |
| add(new SpacerItem()); |
| } |
| addAll(others); |
| |
| // Include apps that can handle this intent too. |
| if (handlerAppIntent != null) { |
| includeHandlerApps(context, handlerAppIntent); |
| } |
| } |
| |
| /** |
| * Adds apps capable of handling the original intent will be included |
| * in list of roots (in special section at bottom). |
| */ |
| private void includeHandlerApps(Context context, Intent handlerAppIntent) { |
| final PackageManager pm = context.getPackageManager(); |
| final List<ResolveInfo> infos = pm.queryIntentActivities( |
| handlerAppIntent, PackageManager.MATCH_DEFAULT_ONLY); |
| |
| final List<AppItem> apps = new ArrayList<>(); |
| |
| // Omit ourselves from the list |
| for (ResolveInfo info : infos) { |
| if (!context.getPackageName().equals(info.activityInfo.packageName)) { |
| apps.add(new AppItem(info)); |
| } |
| } |
| |
| if (apps.size() > 0) { |
| add(new SpacerItem()); |
| addAll(apps); |
| } |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| final Item item = getItem(position); |
| return item.getView(convertView, parent); |
| } |
| |
| @Override |
| public boolean areAllItemsEnabled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isEnabled(int position) { |
| return getItemViewType(position) != 1; |
| } |
| |
| @Override |
| public int getItemViewType(int position) { |
| final Item item = getItem(position); |
| if (item instanceof RootItem || item instanceof AppItem) { |
| return 0; |
| } else { |
| return 1; |
| } |
| } |
| |
| @Override |
| public int getViewTypeCount() { |
| return 2; |
| } |
| } |
| |
| public static class RootComparator implements Comparator<RootItem> { |
| @Override |
| public int compare(RootItem lhs, RootItem rhs) { |
| return lhs.root.compareTo(rhs.root); |
| } |
| } |
| } |