/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui;
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import android.util.Log;
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import com.android.systemui.statusbar.phone.StatusBar;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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/**
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* Ensure a single status bar service implementation is running at all times, using the in-process
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* implementation according to the product config.
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*/
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public class SystemBars extends SystemUI {
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private static final String TAG = "SystemBars";
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private static final boolean DEBUG = false;
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private static final int WAIT_FOR_BARS_TO_DIE = 500;
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// in-process fallback implementation, per the product config
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private SystemUI mStatusBar;
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@Override
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public void start() {
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if (DEBUG) Log.d(TAG, "start");
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createStatusBarFromConfig();
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}
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@Override
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public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
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if (mStatusBar != null) {
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mStatusBar.dump(fd, pw, args);
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}
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}
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private void createStatusBarFromConfig() {
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if (DEBUG) Log.d(TAG, "createStatusBarFromConfig");
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final String clsName = mContext.getString(R.string.config_statusBarComponent);
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if (clsName == null || clsName.length() == 0) {
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throw andLog("No status bar component configured", null);
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}
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Class<?> cls = null;
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try {
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cls = mContext.getClassLoader().loadClass(clsName);
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} catch (Throwable t) {
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throw andLog("Error loading status bar component: " + clsName, t);
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}
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try {
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mStatusBar = (SystemUI) cls.newInstance();
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} catch (Throwable t) {
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throw andLog("Error creating status bar component: " + clsName, t);
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}
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mStatusBar.mContext = mContext;
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mStatusBar.mComponents = mComponents;
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if (mStatusBar instanceof StatusBar) {
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SystemUIFactory.getInstance().getRootComponent()
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.getStatusBarInjector()
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.createStatusBar((StatusBar) mStatusBar);
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}
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mStatusBar.start();
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if (DEBUG) Log.d(TAG, "started " + mStatusBar.getClass().getSimpleName());
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}
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private RuntimeException andLog(String msg, Throwable t) {
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Log.w(TAG, msg, t);
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throw new RuntimeException(msg, t);
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}
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}
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