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/*
* Copyright (C) 2010 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.gallery3d.data;
import android.annotation.TargetApi;
import android.mtp.MtpDeviceInfo;
import android.net.Uri;
import android.os.Handler;
import android.util.Log;
import com.android.gallery3d.R;
import com.android.gallery3d.app.GalleryApp;
import com.android.gallery3d.common.ApiHelper;
import com.android.gallery3d.util.Future;
import com.android.gallery3d.util.FutureListener;
import com.android.gallery3d.util.MediaSetUtils;
import com.android.gallery3d.util.ThreadPool.Job;
import com.android.gallery3d.util.ThreadPool.JobContext;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
// MtpDeviceSet -- MtpDevice -- MtpImage
@TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB_MR1)
public class MtpDeviceSet extends MediaSet
implements FutureListener<ArrayList<MediaSet>> {
private static final String TAG = "MtpDeviceSet";
private GalleryApp mApplication;
private final ChangeNotifier mNotifier;
private final MtpContext mMtpContext;
private final String mName;
private final Handler mHandler;
private Future<ArrayList<MediaSet>> mLoadTask;
private ArrayList<MediaSet> mDeviceSet = new ArrayList<MediaSet>();
private ArrayList<MediaSet> mLoadBuffer;
private boolean mIsLoading;
public MtpDeviceSet(Path path, GalleryApp application, MtpContext mtpContext) {
super(path, nextVersionNumber());
mApplication = application;
mNotifier = new ChangeNotifier(this, Uri.parse("mtp://"), application);
mMtpContext = mtpContext;
mName = application.getResources().getString(R.string.set_label_mtp_devices);
mHandler = new Handler(mApplication.getMainLooper());
}
private class DevicesLoader implements Job<ArrayList<MediaSet>> {
@Override
public ArrayList<MediaSet> run(JobContext jc) {
DataManager dataManager = mApplication.getDataManager();
ArrayList<MediaSet> result = new ArrayList<MediaSet>();
// Enumerate all devices
List<android.mtp.MtpDevice> devices = mMtpContext.getMtpClient().getDeviceList();
Log.v(TAG, "loadDevices: " + devices + ", size=" + devices.size());
for (android.mtp.MtpDevice mtpDevice : devices) {
synchronized (DataManager.LOCK) {
int deviceId = mtpDevice.getDeviceId();
Path childPath = mPath.getChild(deviceId);
MtpDevice device = (MtpDevice) dataManager.peekMediaObject(childPath);
if (device == null) {
device = new MtpDevice(childPath, mApplication, deviceId, mMtpContext);
}
Log.d(TAG, "add device " + device);
result.add(device);
}
}
Collections.sort(result, MediaSetUtils.NAME_COMPARATOR);
return result;
}
}
public static String getDeviceName(MtpContext mtpContext, int deviceId) {
android.mtp.MtpDevice device = mtpContext.getMtpClient().getDevice(deviceId);
if (device == null) {
return "";
}
MtpDeviceInfo info = device.getDeviceInfo();
if (info == null) {
return "";
}
String manufacturer = info.getManufacturer().trim();
String model = info.getModel().trim();
return manufacturer + " " + model;
}
@Override
public MediaSet getSubMediaSet(int index) {
return index < mDeviceSet.size() ? mDeviceSet.get(index) : null;
}
@Override
public int getSubMediaSetCount() {
return mDeviceSet.size();
}
@Override
public String getName() {
return mName;
}
@Override
public synchronized boolean isLoading() {
return mIsLoading;
}
@Override
public synchronized long reload() {
if (mNotifier.isDirty()) {
if (mLoadTask != null) mLoadTask.cancel();
mIsLoading = true;
mLoadTask = mApplication.getThreadPool().submit(new DevicesLoader(), this);
}
if (mLoadBuffer != null) {
mDeviceSet = mLoadBuffer;
mLoadBuffer = null;
for (MediaSet device : mDeviceSet) {
device.reload();
}
mDataVersion = nextVersionNumber();
}
return mDataVersion;
}
@Override
public synchronized void onFutureDone(Future<ArrayList<MediaSet>> future) {
if (future != mLoadTask) return;
mLoadBuffer = future.get();
mIsLoading = false;
if (mLoadBuffer == null) mLoadBuffer = new ArrayList<MediaSet>();
mHandler.post(new Runnable() {
@Override
public void run() {
notifyContentChanged();
}
});
}
}
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