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/*
* 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.DocumentsActivity.TAG;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.os.Bundle;
import android.provider.DocumentsContract;
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.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.android.documentsui.SectionedListAdapter.SectionAdapter;
import com.android.documentsui.model.Root;
import com.android.documentsui.model.Root.RootComparator;
import java.util.Collection;
/**
* Display list of known storage backend roots.
*/
public class RootsFragment extends Fragment {
private ListView mList;
private SectionedRootsAdapter mAdapter;
public static void show(FragmentManager fm) {
final RootsFragment fragment = new RootsFragment();
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 Context context = inflater.getContext();
final View view = inflater.inflate(R.layout.fragment_roots, container, false);
mList = (ListView) view.findViewById(android.R.id.list);
mAdapter = new SectionedRootsAdapter(context, RootsCache.getRoots(context));
mList.setAdapter(mAdapter);
mList.setOnItemClickListener(mItemListener);
return view;
}
private OnItemClickListener mItemListener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final Root root = (Root) mAdapter.getItem(position);
((DocumentsActivity) getActivity()).onRootPicked(root, true);
}
};
public static class RootsAdapter extends ArrayAdapter<Root> implements SectionAdapter {
private int mHeaderId;
public RootsAdapter(Context context, int headerId) {
super(context, 0);
mHeaderId = headerId;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_root, parent, false);
}
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 Root root = getItem(position);
icon.setImageDrawable(root.icon);
title.setText(root.title);
summary.setText(root.summary);
summary.setVisibility(root.summary != null ? View.VISIBLE : View.GONE);
return convertView;
}
@Override
public View getHeaderView(View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_root_header, parent, false);
}
final TextView title = (TextView) convertView.findViewById(android.R.id.title);
title.setText(mHeaderId);
return convertView;
}
}
public static class SectionedRootsAdapter extends SectionedListAdapter {
private final RootsAdapter mServices;
private final RootsAdapter mShortcuts;
private final RootsAdapter mDevices;
private final RootsAdapter mDevicesAdvanced;
public SectionedRootsAdapter(Context context, Collection<Root> roots) {
mServices = new RootsAdapter(context, R.string.root_type_service);
mShortcuts = new RootsAdapter(context, R.string.root_type_shortcut);
mDevices = new RootsAdapter(context, R.string.root_type_device);
mDevicesAdvanced = new RootsAdapter(context, R.string.root_type_device);
for (Root root : roots) {
Log.d(TAG, "Found rootType=" + root.rootType);
switch (root.rootType) {
case DocumentsContract.ROOT_TYPE_SERVICE:
mServices.add(root);
break;
case DocumentsContract.ROOT_TYPE_SHORTCUT:
mShortcuts.add(root);
break;
case DocumentsContract.ROOT_TYPE_DEVICE:
mDevices.add(root);
mDevicesAdvanced.add(root);
break;
case DocumentsContract.ROOT_TYPE_DEVICE_ADVANCED:
mDevicesAdvanced.add(root);
break;
}
}
final RootComparator comp = new RootComparator();
mServices.sort(comp);
mShortcuts.sort(comp);
mDevices.sort(comp);
mDevicesAdvanced.sort(comp);
// TODO: switch to hide advanced items by default
setShowAdvanced(true);
}
public void setShowAdvanced(boolean showAdvanced) {
clearSections();
if (mServices.getCount() > 0) {
addSection(mServices);
}
if (mShortcuts.getCount() > 0) {
addSection(mShortcuts);
}
final RootsAdapter devices = showAdvanced ? mDevicesAdvanced : mDevices;
if (devices.getCount() > 0) {
addSection(devices);
}
}
}
}
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