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/*
* Copyright (C) 2014 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.systemui.recents;
import android.content.ContentResolver;
import android.content.Context;
import android.content.res.Configuration;
import android.provider.Settings;
import com.android.systemui.CoreStartable;
import com.android.systemui.Dependency;
import com.android.systemui.statusbar.CommandQueue;
import com.android.systemui.slimrecent.RecentController;
import com.android.systemui.tuner.TunerService;
import java.io.PrintWriter;
/**
* A proxy to a Recents implementation.
*/
public class Recents implements CoreStartable, CommandQueue.Callbacks, TunerService.Tunable {
private static final String USE_SLIM_RECENTS = "system:" + Settings.System.USE_SLIM_RECENTS;
private final Context mContext;
private RecentsImplementation mImpl;
private final CommandQueue mCommandQueue;
private RecentsImplementation mDefaultImpl;
private RecentController mSlimImpl;
private boolean mStarted = false;
private boolean mBootCompleted = false;
private boolean mUseSlimRecents = false;
public Recents(Context context, RecentsImplementation impl, CommandQueue commandQueue) {
mContext = context;
mDefaultImpl = impl;
mCommandQueue = commandQueue;
mImpl = getCurrentImpl();
}
@Override
public void start() {
mStarted = true;
mCommandQueue.addCallback(this);
mDefaultImpl.onStart(mContext);
if (mSlimImpl != null) {
mSlimImpl.onStart(mContext);
}
Dependency.get(TunerService.class).addTunable(this, USE_SLIM_RECENTS);
}
@Override
public void onBootCompleted() {
mBootCompleted = true;
mDefaultImpl.onBootCompleted();
if (mSlimImpl != null) {
mSlimImpl.onBootCompleted();
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
mImpl.onConfigurationChanged(newConfig);
}
@Override
public void appTransitionFinished(int displayId) {
if (mContext.getDisplayId() == displayId) {
mImpl.onAppTransitionFinished();
}
}
@Override
public void showRecentApps(boolean triggeredFromAltTab) {
// Ensure the device has been provisioned before allowing the user to interact with
// recents
if (!isUserSetup()) {
return;
}
mImpl.showRecentApps(triggeredFromAltTab);
}
@Override
public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
// Ensure the device has been provisioned before allowing the user to interact with
// recents
if (!isUserSetup()) {
return;
}
mImpl.hideRecentApps(triggeredFromAltTab, triggeredFromHomeKey);
}
@Override
public void toggleRecentApps() {
// Ensure the device has been provisioned before allowing the user to interact with
// recents
if (!isUserSetup()) {
return;
}
mImpl.toggleRecentApps();
}
@Override
public void preloadRecentApps() {
// Ensure the device has been provisioned before allowing the user to interact with
// recents
if (!isUserSetup()) {
return;
}
mImpl.preloadRecentApps();
}
@Override
public void cancelPreloadRecentApps() {
// Ensure the device has been provisioned before allowing the user to interact with
// recents
if (!isUserSetup()) {
return;
}
mImpl.cancelPreloadRecentApps();
}
/**
* @return whether this device is provisioned and the current user is set up.
*/
private boolean isUserSetup() {
ContentResolver cr = mContext.getContentResolver();
return (Settings.Global.getInt(cr, Settings.Global.DEVICE_PROVISIONED, 0) != 0) &&
(Settings.Secure.getInt(cr, Settings.Secure.USER_SETUP_COMPLETE, 0) != 0);
}
@Override
public void dump(PrintWriter pw, String[] args) {
mImpl.dump(pw);
}
private RecentsImplementation getCurrentImpl() {
RecentsImplementation newImpl;
boolean newCreated = false;
if (mUseSlimRecents) {
if (mSlimImpl == null) {
newCreated = true;
mSlimImpl = new RecentController(mDefaultImpl);
}
newImpl = mSlimImpl;
} else {
newImpl = mDefaultImpl;
}
if (newCreated) {
if (mStarted) {
newImpl.onStart(mContext);
}
if (mBootCompleted) {
newImpl.onBootCompleted();
}
}
return newImpl;
}
@Override
public void onTuningChanged(String key, String newValue) {
switch (key) {
case USE_SLIM_RECENTS:
mUseSlimRecents = "1".equals(newValue);
mImpl = getCurrentImpl();
break;
}
}
}
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