src/com/android/documentsui/DocumentsApplication.java - LeafOS-Project/android_packages_apps_DocumentsUI - Gitiles

 /*
  * 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.documentsui;

 import android.annotation.SuppressLint;
 import android.app.ActivityManager;
 import android.app.Application;
 import android.content.BroadcastReceiver;
 import android.content.ContentProviderClient;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.om.OverlayManager;
 import android.net.Uri;
 import android.os.RemoteException;
 import android.os.UserHandle;
 import android.text.format.DateUtils;
 import android.util.Log;

 import androidx.annotation.Nullable;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;

 import com.android.documentsui.base.Lookup;
 import com.android.documentsui.base.UserId;
 import com.android.documentsui.clipping.ClipStorage;
 import com.android.documentsui.clipping.ClipStore;
 import com.android.documentsui.clipping.DocumentClipper;
 import com.android.documentsui.queries.SearchHistoryManager;
 import com.android.documentsui.roots.ProvidersCache;
 import com.android.documentsui.theme.ThemeOverlayManager;
 import com.android.modules.utils.build.SdkLevel;

 import com.google.common.collect.Lists;

 import java.util.List;

 import javax.annotation.concurrent.GuardedBy;

 public class DocumentsApplication extends Application {
     private static final String TAG = "DocumentsApplication";
     private static final long PROVIDER_ANR_TIMEOUT = 20 * DateUtils.SECOND_IN_MILLIS;

     private static final List<String> PACKAGE_FILTER_ACTIONS = Lists.newArrayList(
             Intent.ACTION_PACKAGE_ADDED,
             Intent.ACTION_PACKAGE_CHANGED,
             Intent.ACTION_PACKAGE_REMOVED,
             Intent.ACTION_PACKAGE_DATA_CLEARED
     );

     private static final List<String> PROFILE_FILTER_ACTIONS = Lists.newArrayList(
             Intent.ACTION_MANAGED_PROFILE_ADDED,
             Intent.ACTION_MANAGED_PROFILE_REMOVED,
             Intent.ACTION_MANAGED_PROFILE_UNLOCKED,
             Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE
     );

     @GuardedBy("DocumentsApplication.class")
     @Nullable
     private static volatile ConfigStore sConfigStore;

     private ProvidersCache mProviders;
     private ThumbnailCache mThumbnailCache;
     private ClipStorage mClipStore;
     private DocumentClipper mClipper;
     private DragAndDropManager mDragAndDropManager;
     private UserIdManager mUserIdManager;
     private UserManagerState mUserManagerState;
     private Lookup<String, String> mFileTypeLookup;

     public static ProvidersCache getProvidersCache(Context context) {
         ProvidersCache providers =
                 ((DocumentsApplication) context.getApplicationContext()).mProviders;
         final ConfigStore configStore = getConfigStore();
         // When private space in DocsUI is enabled then ProvidersCache should use UserManagerState
         // else it should use UserIdManager. The following if-check will ensure the construction of
         // a new ProvidersCache instance whenever there is a mismatch in this.
         if (configStore.isPrivateSpaceInDocsUIEnabled()
                 != providers.isProvidersCacheUsingUserManagerState()) {
             providers = configStore.isPrivateSpaceInDocsUIEnabled()
                     ? new ProvidersCache(context, getUserManagerState(context), configStore)
                     : new ProvidersCache(context, getUserIdManager(context), configStore);
             ((DocumentsApplication) context.getApplicationContext()).mProviders = providers;
         }
         return providers;
     }

     public static ThumbnailCache getThumbnailCache(Context context) {
         final DocumentsApplication app = (DocumentsApplication) context.getApplicationContext();
         return app.mThumbnailCache;
     }

     public static ContentProviderClient acquireUnstableProviderOrThrow(
             ContentResolver resolver, String authority) throws RemoteException {
         final ContentProviderClient client = resolver.acquireUnstableContentProviderClient(
                 authority);
         if (client == null) {
             throw new RemoteException("Failed to acquire provider for " + authority);
         }
         client.setDetectNotResponding(PROVIDER_ANR_TIMEOUT);
         return client;
     }

     public static DocumentClipper getDocumentClipper(Context context) {
         return ((DocumentsApplication) context.getApplicationContext()).mClipper;
     }

     public static ClipStore getClipStore(Context context) {
         return ((DocumentsApplication) context.getApplicationContext()).mClipStore;
     }

     public static UserIdManager getUserIdManager(Context context) {
         UserIdManager userIdManager =
                 ((DocumentsApplication) context.getApplicationContext()).mUserIdManager;
         if (userIdManager == null) {
             userIdManager = UserIdManager.create(context);
             ((DocumentsApplication) context.getApplicationContext()).mUserIdManager = userIdManager;
         }
         return userIdManager;
     }

     /**
      * UserManagerState class is used to maintain the list of userIds and other details like
      * cross profile access, label and badge associated with these userIds.
      */
     public static UserManagerState getUserManagerState(Context context) {
         UserManagerState userManagerState =
                 ((DocumentsApplication) context.getApplicationContext()).mUserManagerState;
         if (userManagerState == null && getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
             userManagerState = UserManagerState.create(context);
             ((DocumentsApplication) context.getApplicationContext()).mUserManagerState =
                     userManagerState;
         }
         return userManagerState;
     }

     public static DragAndDropManager getDragAndDropManager(Context context) {
         return ((DocumentsApplication) context.getApplicationContext()).mDragAndDropManager;
     }

     public static Lookup<String, String> getFileTypeLookup(Context context) {
         return ((DocumentsApplication) context.getApplicationContext()).mFileTypeLookup;
     }

     /**
      * Retrieve {@link ConfigStore} instance to access feature flags in production code.
      */
     public static synchronized ConfigStore getConfigStore() {
         if (sConfigStore == null) {
             sConfigStore = new ConfigStore.ConfigStoreImpl();
         }
         return sConfigStore;
     }

     /**
      * Set {@link #mUserManagerState} as null onDestroy of BaseActivity so that new session uses new
      * instance of {@link #mUserManagerState}
      */
     public static void invalidateUserManagerState(Context context) {
         ((DocumentsApplication) context.getApplicationContext()).mUserManagerState = null;
     }

     /**
      * Set {@link #sConfigStore} as null onDestroy of BaseActivity so that new session uses new
      * instance of {@link #sConfigStore}
      */
     public static void invalidateConfigStore() {
         synchronized (DocumentsApplication.class) {
             sConfigStore = null;
         }
     }

     private void onApplyOverlayFinish(boolean result) {
         Log.d(TAG, "OverlayManager.setEnabled() result: " + result);
     }

     @SuppressLint("NewApi") // OverlayManager.class is @hide
     @Override
     public void onCreate() {
         super.onCreate();
         synchronized (DocumentsApplication.class) {
             if (sConfigStore == null) {
                 sConfigStore = new ConfigStore.ConfigStoreImpl();
             }
         }

         final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
         final OverlayManager om = getSystemService(OverlayManager.class);
         final int memoryClassBytes = am.getMemoryClass() * 1024 * 1024;

         if (om != null) {
             new ThemeOverlayManager(om, getPackageName()).applyOverlays(this, true,
                     this::onApplyOverlayFinish);
         } else {
             Log.w(TAG, "Can't obtain OverlayManager from System Service!");
         }

         if (getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
             mUserManagerState = UserManagerState.create(this);
             mUserIdManager = null;
             synchronized (DocumentsApplication.class) {
                 mProviders = new ProvidersCache(this, mUserManagerState, getConfigStore());
             }
         } else {
             mUserManagerState = null;
             mUserIdManager = UserIdManager.create(this);
             synchronized (DocumentsApplication.class) {
                 mProviders = new ProvidersCache(this, mUserIdManager, getConfigStore());
             }
         }

         mProviders.updateAsync(/* forceRefreshAll= */ false, /* callback= */  null);

         mThumbnailCache = new ThumbnailCache(memoryClassBytes / 4);

         mClipStore = new ClipStorage(
                 ClipStorage.prepareStorage(getCacheDir()),
                 getSharedPreferences(ClipStorage.PREF_NAME, 0));
         mClipper = DocumentClipper.create(this, mClipStore);

         mDragAndDropManager = DragAndDropManager.create(this, mClipper);

         mFileTypeLookup = new FileTypeMap(this);

         final IntentFilter packageFilter = new IntentFilter();
         for (String packageAction : PACKAGE_FILTER_ACTIONS) {
             packageFilter.addAction(packageAction);
         }
         packageFilter.addDataScheme("package");
         registerReceiver(mCacheReceiver, packageFilter);

         final IntentFilter localeFilter = new IntentFilter();
         localeFilter.addAction(Intent.ACTION_LOCALE_CHANGED);
         registerReceiver(mCacheReceiver, localeFilter);

         if (SdkLevel.isAtLeastV()) {
             PROFILE_FILTER_ACTIONS.addAll(Lists.newArrayList(
                     Intent.ACTION_PROFILE_ADDED,
                     Intent.ACTION_PROFILE_REMOVED,
                     Intent.ACTION_PROFILE_AVAILABLE,
                     Intent.ACTION_PROFILE_UNAVAILABLE
             ));
         }
         final IntentFilter profileFilter = new IntentFilter();
         for (String profileAction : PROFILE_FILTER_ACTIONS) {
             profileFilter.addAction(profileAction);
         }
         registerReceiver(mCacheReceiver, profileFilter);

         SearchHistoryManager.getInstance(getApplicationContext());
     }

     @Override
     public void onTrimMemory(int level) {
         super.onTrimMemory(level);

         mThumbnailCache.onTrimMemory(level);
     }

     private BroadcastReceiver mCacheReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             final Uri data = intent.getData();
             final String action = intent.getAction();
             if (PACKAGE_FILTER_ACTIONS.contains(action) && data != null) {
                 final String packageName = data.getSchemeSpecificPart();
                 mProviders.updatePackageAsync(UserId.DEFAULT_USER, packageName);
             } else if (PROFILE_FILTER_ACTIONS.contains(action)) {
                 // After we have reloaded roots. Resend the broadcast locally so the other
                 // components can reload properly after roots are updated.
                 if (getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
                     UserHandle userHandle = intent.getParcelableExtra(Intent.EXTRA_USER);
                     UserId userId = UserId.of(userHandle);
                     getUserManagerState(context).onProfileActionStatusChange(action, userId);
                 }
                 mProviders.updateAsync(/* forceRefreshAll= */ true,
                         () -> LocalBroadcastManager.getInstance(context).sendBroadcast(intent));
             } else {
                 mProviders.updateAsync(/* forceRefreshAll= */ true, /* callback= */ null);
             }
         }
     };
 }
	/*
	* 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.documentsui;

	import android.annotation.SuppressLint;
	import android.app.ActivityManager;
	import android.app.Application;
	import android.content.BroadcastReceiver;
	import android.content.ContentProviderClient;
	import android.content.ContentResolver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.om.OverlayManager;
	import android.net.Uri;
	import android.os.RemoteException;
	import android.os.UserHandle;
	import android.text.format.DateUtils;
	import android.util.Log;

	import androidx.annotation.Nullable;
	import androidx.localbroadcastmanager.content.LocalBroadcastManager;

	import com.android.documentsui.base.Lookup;
	import com.android.documentsui.base.UserId;
	import com.android.documentsui.clipping.ClipStorage;
	import com.android.documentsui.clipping.ClipStore;
	import com.android.documentsui.clipping.DocumentClipper;
	import com.android.documentsui.queries.SearchHistoryManager;
	import com.android.documentsui.roots.ProvidersCache;
	import com.android.documentsui.theme.ThemeOverlayManager;
	import com.android.modules.utils.build.SdkLevel;

	import com.google.common.collect.Lists;

	import java.util.List;

	import javax.annotation.concurrent.GuardedBy;

	public class DocumentsApplication extends Application {
	private static final String TAG = "DocumentsApplication";
	private static final long PROVIDER_ANR_TIMEOUT = 20 * DateUtils.SECOND_IN_MILLIS;

	private static final List<String> PACKAGE_FILTER_ACTIONS = Lists.newArrayList(
	Intent.ACTION_PACKAGE_ADDED,
	Intent.ACTION_PACKAGE_CHANGED,
	Intent.ACTION_PACKAGE_REMOVED,
	Intent.ACTION_PACKAGE_DATA_CLEARED
	);

	private static final List<String> PROFILE_FILTER_ACTIONS = Lists.newArrayList(
	Intent.ACTION_MANAGED_PROFILE_ADDED,
	Intent.ACTION_MANAGED_PROFILE_REMOVED,
	Intent.ACTION_MANAGED_PROFILE_UNLOCKED,
	Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE
	);

	@GuardedBy("DocumentsApplication.class")
	@Nullable
	private static volatile ConfigStore sConfigStore;

	private ProvidersCache mProviders;
	private ThumbnailCache mThumbnailCache;
	private ClipStorage mClipStore;
	private DocumentClipper mClipper;
	private DragAndDropManager mDragAndDropManager;
	private UserIdManager mUserIdManager;
	private UserManagerState mUserManagerState;
	private Lookup<String, String> mFileTypeLookup;

	public static ProvidersCache getProvidersCache(Context context) {
	ProvidersCache providers =
	((DocumentsApplication) context.getApplicationContext()).mProviders;
	final ConfigStore configStore = getConfigStore();
	// When private space in DocsUI is enabled then ProvidersCache should use UserManagerState
	// else it should use UserIdManager. The following if-check will ensure the construction of
	// a new ProvidersCache instance whenever there is a mismatch in this.
	if (configStore.isPrivateSpaceInDocsUIEnabled()
	!= providers.isProvidersCacheUsingUserManagerState()) {
	providers = configStore.isPrivateSpaceInDocsUIEnabled()
	? new ProvidersCache(context, getUserManagerState(context), configStore)
	: new ProvidersCache(context, getUserIdManager(context), configStore);
	((DocumentsApplication) context.getApplicationContext()).mProviders = providers;
	}
	return providers;
	}

	public static ThumbnailCache getThumbnailCache(Context context) {
	final DocumentsApplication app = (DocumentsApplication) context.getApplicationContext();
	return app.mThumbnailCache;
	}

	public static ContentProviderClient acquireUnstableProviderOrThrow(
	ContentResolver resolver, String authority) throws RemoteException {
	final ContentProviderClient client = resolver.acquireUnstableContentProviderClient(
	authority);
	if (client == null) {
	throw new RemoteException("Failed to acquire provider for " + authority);
	}
	client.setDetectNotResponding(PROVIDER_ANR_TIMEOUT);
	return client;
	}

	public static DocumentClipper getDocumentClipper(Context context) {
	return ((DocumentsApplication) context.getApplicationContext()).mClipper;
	}

	public static ClipStore getClipStore(Context context) {
	return ((DocumentsApplication) context.getApplicationContext()).mClipStore;
	}

	public static UserIdManager getUserIdManager(Context context) {
	UserIdManager userIdManager =
	((DocumentsApplication) context.getApplicationContext()).mUserIdManager;
	if (userIdManager == null) {
	userIdManager = UserIdManager.create(context);
	((DocumentsApplication) context.getApplicationContext()).mUserIdManager = userIdManager;
	}
	return userIdManager;
	}

	/**
	* UserManagerState class is used to maintain the list of userIds and other details like
	* cross profile access, label and badge associated with these userIds.
	*/
	public static UserManagerState getUserManagerState(Context context) {
	UserManagerState userManagerState =
	((DocumentsApplication) context.getApplicationContext()).mUserManagerState;
	if (userManagerState == null && getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
	userManagerState = UserManagerState.create(context);
	((DocumentsApplication) context.getApplicationContext()).mUserManagerState =
	userManagerState;
	}
	return userManagerState;
	}

	public static DragAndDropManager getDragAndDropManager(Context context) {
	return ((DocumentsApplication) context.getApplicationContext()).mDragAndDropManager;
	}

	public static Lookup<String, String> getFileTypeLookup(Context context) {
	return ((DocumentsApplication) context.getApplicationContext()).mFileTypeLookup;
	}

	/**
	* Retrieve {@link ConfigStore} instance to access feature flags in production code.
	*/
	public static synchronized ConfigStore getConfigStore() {
	if (sConfigStore == null) {
	sConfigStore = new ConfigStore.ConfigStoreImpl();
	}
	return sConfigStore;
	}

	/**
	* Set {@link #mUserManagerState} as null onDestroy of BaseActivity so that new session uses new
	* instance of {@link #mUserManagerState}
	*/
	public static void invalidateUserManagerState(Context context) {
	((DocumentsApplication) context.getApplicationContext()).mUserManagerState = null;
	}

	/**
	* Set {@link #sConfigStore} as null onDestroy of BaseActivity so that new session uses new
	* instance of {@link #sConfigStore}
	*/
	public static void invalidateConfigStore() {
	synchronized (DocumentsApplication.class) {
	sConfigStore = null;
	}
	}

	private void onApplyOverlayFinish(boolean result) {
	Log.d(TAG, "OverlayManager.setEnabled() result: " + result);
	}

	@SuppressLint("NewApi") // OverlayManager.class is @hide
	@Override
	public void onCreate() {
	super.onCreate();
	synchronized (DocumentsApplication.class) {
	if (sConfigStore == null) {
	sConfigStore = new ConfigStore.ConfigStoreImpl();
	}
	}

	final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
	final OverlayManager om = getSystemService(OverlayManager.class);
	final int memoryClassBytes = am.getMemoryClass() * 1024 * 1024;

	if (om != null) {
	new ThemeOverlayManager(om, getPackageName()).applyOverlays(this, true,
	this::onApplyOverlayFinish);
	} else {
	Log.w(TAG, "Can't obtain OverlayManager from System Service!");
	}

	if (getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
	mUserManagerState = UserManagerState.create(this);
	mUserIdManager = null;
	synchronized (DocumentsApplication.class) {
	mProviders = new ProvidersCache(this, mUserManagerState, getConfigStore());
	}
	} else {
	mUserManagerState = null;
	mUserIdManager = UserIdManager.create(this);
	synchronized (DocumentsApplication.class) {
	mProviders = new ProvidersCache(this, mUserIdManager, getConfigStore());
	}
	}

	mProviders.updateAsync(/* forceRefreshAll= / false, / callback= */ null);

	mThumbnailCache = new ThumbnailCache(memoryClassBytes / 4);

	mClipStore = new ClipStorage(
	ClipStorage.prepareStorage(getCacheDir()),
	getSharedPreferences(ClipStorage.PREF_NAME, 0));
	mClipper = DocumentClipper.create(this, mClipStore);

	mDragAndDropManager = DragAndDropManager.create(this, mClipper);

	mFileTypeLookup = new FileTypeMap(this);

	final IntentFilter packageFilter = new IntentFilter();
	for (String packageAction : PACKAGE_FILTER_ACTIONS) {
	packageFilter.addAction(packageAction);
	}
	packageFilter.addDataScheme("package");
	registerReceiver(mCacheReceiver, packageFilter);

	final IntentFilter localeFilter = new IntentFilter();
	localeFilter.addAction(Intent.ACTION_LOCALE_CHANGED);
	registerReceiver(mCacheReceiver, localeFilter);

	if (SdkLevel.isAtLeastV()) {
	PROFILE_FILTER_ACTIONS.addAll(Lists.newArrayList(
	Intent.ACTION_PROFILE_ADDED,
	Intent.ACTION_PROFILE_REMOVED,
	Intent.ACTION_PROFILE_AVAILABLE,
	Intent.ACTION_PROFILE_UNAVAILABLE
	));
	}
	final IntentFilter profileFilter = new IntentFilter();
	for (String profileAction : PROFILE_FILTER_ACTIONS) {
	profileFilter.addAction(profileAction);
	}
	registerReceiver(mCacheReceiver, profileFilter);

	SearchHistoryManager.getInstance(getApplicationContext());
	}

	@Override
	public void onTrimMemory(int level) {
	super.onTrimMemory(level);

	mThumbnailCache.onTrimMemory(level);
	}

	private BroadcastReceiver mCacheReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	final Uri data = intent.getData();
	final String action = intent.getAction();
	if (PACKAGE_FILTER_ACTIONS.contains(action) && data != null) {
	final String packageName = data.getSchemeSpecificPart();
	mProviders.updatePackageAsync(UserId.DEFAULT_USER, packageName);
	} else if (PROFILE_FILTER_ACTIONS.contains(action)) {
	// After we have reloaded roots. Resend the broadcast locally so the other
	// components can reload properly after roots are updated.
	if (getConfigStore().isPrivateSpaceInDocsUIEnabled()) {
	UserHandle userHandle = intent.getParcelableExtra(Intent.EXTRA_USER);
	UserId userId = UserId.of(userHandle);
	getUserManagerState(context).onProfileActionStatusChange(action, userId);
	}
	mProviders.updateAsync(/* forceRefreshAll= */ true,
	() -> LocalBroadcastManager.getInstance(context).sendBroadcast(intent));
	} else {
	mProviders.updateAsync(/* forceRefreshAll= / true, / callback= */ null);
	}
	}
	};
	}