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/*
* Copyright (C) 2015 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.settings.applications;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.applications.ApplicationsState.Session;
import java.util.ArrayList;
/**
* Common base class for bridging information to ApplicationsState.
*/
public abstract class AppStateBaseBridge implements ApplicationsState.Callbacks {
protected final ApplicationsState mAppState;
protected final Session mAppSession;
protected final Callback mCallback;
protected final BackgroundHandler mHandler;
protected final MainHandler mMainHandler;
public AppStateBaseBridge(ApplicationsState appState, Callback callback) {
mAppState = appState;
mAppSession = mAppState != null ? mAppState.newSession(this) : null;
mCallback = callback;
// Running on the same background thread as the ApplicationsState lets
// us run in the background and make sure they aren't doing updates at
// the same time as us as well.
mHandler = new BackgroundHandler(mAppState.getBackgroundLooper());
mMainHandler = new MainHandler();
}
public void resume() {
mHandler.sendEmptyMessage(BackgroundHandler.MSG_LOAD_ALL);
mAppSession.resume();
}
public void pause() {
mAppSession.pause();
}
public void release() {
mAppSession.release();
}
public void forceUpdate(String pkg, int uid) {
mHandler.obtainMessage(BackgroundHandler.MSG_FORCE_LOAD_PKG, uid, 0, pkg).sendToTarget();
}
@Override
public void onPackageListChanged() {
mHandler.sendEmptyMessage(BackgroundHandler.MSG_LOAD_ALL);
}
@Override
public void onLoadEntriesCompleted() {
mHandler.sendEmptyMessage(BackgroundHandler.MSG_LOAD_ALL);
}
@Override
public void onRunningStateChanged(boolean running) {
// No op.
}
@Override
public void onRebuildComplete(ArrayList<AppEntry> apps) {
// No op.
}
@Override
public void onPackageIconChanged() {
// No op.
}
@Override
public void onPackageSizeChanged(String packageName) {
// No op.
}
@Override
public void onAllSizesComputed() {
// No op.
}
@Override
public void onLauncherInfoChanged() {
// No op.
}
protected abstract void loadAllExtraInfo();
protected abstract void updateExtraInfo(AppEntry app, String pkg, int uid);
private class MainHandler extends Handler {
private static final int MSG_INFO_UPDATED = 1;
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_INFO_UPDATED:
mCallback.onExtraInfoUpdated();
break;
}
}
}
private class BackgroundHandler extends Handler {
private static final int MSG_LOAD_ALL = 1;
private static final int MSG_FORCE_LOAD_PKG = 2;
public BackgroundHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_LOAD_ALL:
loadAllExtraInfo();
mMainHandler.sendEmptyMessage(MainHandler.MSG_INFO_UPDATED);
break;
case MSG_FORCE_LOAD_PKG:
ArrayList<AppEntry> apps = mAppSession.getAllApps();
final int N = apps.size();
String pkg = (String) msg.obj;
int uid = msg.arg1;
for (int i = 0; i < N; i++) {
AppEntry app = apps.get(i);
if (app.info.uid == uid && pkg.equals(app.info.packageName)) {
updateExtraInfo(app, pkg, uid);
}
}
mMainHandler.sendEmptyMessage(MainHandler.MSG_INFO_UPDATED);
break;
}
}
}
public interface Callback {
void onExtraInfoUpdated();
}
}
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