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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.launcher3;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.Log;
import com.android.launcher3.compat.LauncherAppsCompat;
import com.android.launcher3.compat.PackageInstallerCompat;
import com.android.launcher3.compat.UserManagerCompat;
import com.android.launcher3.config.ProviderConfig;
import com.android.launcher3.dynamicui.ExtractionUtils;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.util.ConfigMonitor;
import com.android.launcher3.util.TestingUtils;
import com.android.launcher3.util.Thunk;
import java.lang.ref.WeakReference;
public class LauncherAppState {
public static final boolean PROFILE_STARTUP = ProviderConfig.IS_DOGFOOD_BUILD;
@Thunk final LauncherModel mModel;
private final IconCache mIconCache;
private final WidgetPreviewLoader mWidgetCache;
private static WeakReference<LauncherProvider> sLauncherProvider;
private static Context sContext;
private static LauncherAppState INSTANCE;
private InvariantDeviceProfile mInvariantDeviceProfile;
public static LauncherAppState getInstance(Context context) {
if (INSTANCE == null) {
INSTANCE = new LauncherAppState();
}
return INSTANCE;
}
public static LauncherAppState getInstanceNoCreate() {
return INSTANCE;
}
public Context getContext() {
return sContext;
}
static void setLauncherProvider(LauncherProvider provider) {
if (sLauncherProvider != null) {
Log.w(Launcher.TAG, "setLauncherProvider called twice! old=" +
sLauncherProvider.get() + " new=" + provider);
}
sLauncherProvider = new WeakReference<>(provider);
// The content provider exists for the entire duration of the launcher main process and
// is the first component to get created. Initializing application context here ensures
// that LauncherAppState always exists in the main process.
sContext = provider.getContext().getApplicationContext();
FileLog.setDir(sContext.getFilesDir());
}
private LauncherAppState() {
if (sContext == null) {
throw new IllegalStateException("LauncherAppState initiated before app context set");
}
Log.v(Launcher.TAG, "LauncherAppState initiated");
if (TestingUtils.MEMORY_DUMP_ENABLED) {
TestingUtils.startTrackingMemory(sContext);
}
mInvariantDeviceProfile = new InvariantDeviceProfile(sContext);
mIconCache = new IconCache(sContext, mInvariantDeviceProfile);
mWidgetCache = new WidgetPreviewLoader(sContext, mIconCache);
mModel = new LauncherModel(this, mIconCache,
Utilities.getOverrideObject(AppFilter.class, sContext, R.string.app_filter_class));
LauncherAppsCompat.getInstance(sContext).addOnAppsChangedCallback(mModel);
// Register intent receivers
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_LOCALE_CHANGED);
// For handling managed profiles
filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED);
filter.addAction(Intent.ACTION_MANAGED_PROFILE_REMOVED);
filter.addAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE);
filter.addAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE);
filter.addAction(Intent.ACTION_MANAGED_PROFILE_UNLOCKED);
// For extracting colors from the wallpaper
if (Utilities.ATLEAST_NOUGAT) {
// TODO: add a broadcast entry to the manifest for pre-N.
filter.addAction(Intent.ACTION_WALLPAPER_CHANGED);
}
sContext.registerReceiver(mModel, filter);
UserManagerCompat.getInstance(sContext).enableAndResetCache();
new ConfigMonitor(sContext).register();
ExtractionUtils.startColorExtractionServiceIfNecessary(sContext);
}
/**
* Call from Application.onTerminate(), which is not guaranteed to ever be called.
*/
public void onTerminate() {
sContext.unregisterReceiver(mModel);
final LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(sContext);
launcherApps.removeOnAppsChangedCallback(mModel);
PackageInstallerCompat.getInstance(sContext).onStop();
}
/**
* Reloads the workspace items from the DB and re-binds the workspace. This should generally
* not be called as DB updates are automatically followed by UI update
*/
public void reloadWorkspace() {
mModel.resetLoadedState(false, true);
mModel.startLoaderFromBackground();
}
LauncherModel setLauncher(Launcher launcher) {
sLauncherProvider.get().setLauncherProviderChangeListener(launcher);
mModel.initialize(launcher);
return mModel;
}
public IconCache getIconCache() {
return mIconCache;
}
public LauncherModel getModel() {
return mModel;
}
public WidgetPreviewLoader getWidgetCache() {
return mWidgetCache;
}
public InvariantDeviceProfile getInvariantDeviceProfile() {
return mInvariantDeviceProfile;
}
/**
* Shorthand for {@link #getInvariantDeviceProfile()}
*/
public static InvariantDeviceProfile getIDP(Context context) {
return LauncherAppState.getInstance(context).getInvariantDeviceProfile();
}
}
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