Snap for 6412615 from d2db36caa7e8d2120caf195e4495827c87b935e8 to rvc-release (bc59e41a) · Commits · e / os / android_packages_apps_DocumentsUI

src/com/android/documentsui/dirlist/DirectoryFragment.java

+90 −3

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ import static com.android.documentsui.base.State.MODE_LIST;

		import android.app.ActivityManager;
		import android.content.BroadcastReceiver;
		import android.content.ContentProviderClient;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		@@ -31,6 +32,7 @@ import android.database.Cursor;
		import android.net.Uri;
		import android.os.Bundle;
		import android.os.Handler;
		import android.os.Looper;
		import android.os.Parcelable;
		import android.os.UserHandle;
		import android.provider.DocumentsContract;
		@@ -136,6 +138,8 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On

		private static final int CACHE_EVICT_LIMIT = 100;
		private static final int REFRESH_SPINNER_TIMEOUT = 500;
		private static final int PROVIDER_MAX_RETRIES = 10;
		private static final long PROVIDER_TEST_DELAY = 4000;

		private BaseActivity mActivity;

		@@ -190,6 +194,9 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On

		private DirectoryState mLocalState;

		private Handler mHandler;
		private Runnable mProviderTestRunnable;

		// Note, we use !null to indicate that selection was restored (from rotation).
		// So don't fiddle with this field unless you've got the bigger picture in mind.
		private @Nullable Bundle mRestoredState;
		@@ -225,15 +232,91 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On
		final String action = intent.getAction();
		if (isManagedProfileAction(action)) {
		UserHandle userHandle = intent.getParcelableExtra(Intent.EXTRA_USER);
		if (Objects.equal(mActivity.getSelectedUser(), UserId.of(userHandle))) {
		UserId userId = UserId.of(userHandle);
		if (Objects.equal(mActivity.getSelectedUser(), userId)) {
		// We only need to refresh the layout when the selected user is equal to the
		// received profile user.
		if (Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action)) {
		// If the managed profile is turned off, we need to refresh the directory
		// to update the UI to show an appropriate error message.
		if (mProviderTestRunnable != null) {
		mHandler.removeCallbacks(mProviderTestRunnable);
		mProviderTestRunnable = null;
		}
		onRefresh();
		return;
		}

		// When the managed profile becomes available, the provider may not be available
		// immediately, we need to check if it is ready before we reload the content.
		if (Intent.ACTION_MANAGED_PROFILE_UNLOCKED.equals(action)) {
		checkUriAndScheduleCheckIfNeeded(userId);
		}
		}
		}
		}
		};

		private void checkUriAndScheduleCheckIfNeeded(UserId userId) {
		RootInfo currentRoot = mActivity.getCurrentRoot();
		DocumentInfo currentDoc = mActivity.getDisplayState().stack.peek();
		Uri uri = getCurrentUri(currentRoot, currentDoc);
		if (isProviderAvailable(uri, userId) \|\| mActivity.isInRecents()) {
		if (mProviderTestRunnable != null) {
		mHandler.removeCallbacks(mProviderTestRunnable);
		mProviderTestRunnable = null;
		}
		mHandler.post(() -> onRefresh());
		} else {
		checkUriWithDelay(/* numOfRetries= */1, uri, userId);
		}
		}

		private void checkUriWithDelay(int numOfRetries, Uri uri, UserId userId) {
		mProviderTestRunnable = () -> {
		RootInfo currentRoot = mActivity.getCurrentRoot();
		DocumentInfo currentDoc = mActivity.getDisplayState().stack.peek();
		if (mActivity.getSelectedUser().equals(userId)
		&& uri.equals(getCurrentUri(currentRoot, currentDoc))) {
		if (isProviderAvailable(uri, userId)
		\|\| userId.isQuietModeEnabled(mActivity)
		\|\| numOfRetries >= PROVIDER_MAX_RETRIES) {
		// We stop the recursive check when
		// 1. the provider is available
		// 2. the profile is in quiet mode, i.e. provider will not be available
		// 3. after maximum retries
		onRefresh();
		mProviderTestRunnable = null;
		} else {
		Log.d(TAG, "Provider is not available. Retry after " + PROVIDER_TEST_DELAY);
		checkUriWithDelay(numOfRetries + 1, uri, userId);
		}
		}
		};
		mHandler.postDelayed(mProviderTestRunnable, PROVIDER_TEST_DELAY);
		}

		private Uri getCurrentUri(RootInfo root, @Nullable DocumentInfo doc) {
		String authority = doc == null ? root.authority : doc.authority;
		String documentId = doc == null ? root.documentId : doc.documentId;
		return DocumentsContract.buildDocumentUri(authority, documentId);
		}

		private boolean isProviderAvailable(Uri uri, UserId userId) {
		try (ContentProviderClient userClient =
		DocumentsApplication.acquireUnstableProviderOrThrow(
		userId.getContentResolver(mActivity), uri.getAuthority())) {
		Cursor testCursor = userClient.query(uri, /* projection= */ null,
		/* queryArgs= /null, / cancellationSignal= */ null);
		if (testCursor != null) {
		return true;
		}
		} catch (Exception e) {
		// Provider is not available. Ignore.
		}
		return false;
		}

		private static boolean isManagedProfileAction(String action) {
		return Intent.ACTION_MANAGED_PROFILE_UNLOCKED.equals(action)
		\|\| Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action);
		@@ -243,6 +326,7 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On
		public View onCreateView(
		LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		mHandler = new Handler(Looper.getMainLooper());
		mActivity = (BaseActivity) getActivity();
		final View view = inflater.inflate(R.layout.fragment_directory, container, false);

		@@ -302,6 +386,9 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On
		mInjector.actions.unregisterDisplayStateChangedListener(mOnDisplayStateChanged);
		if (mState.supportsCrossProfile()) {
		LocalBroadcastManager.getInstance(mActivity).unregisterReceiver(mReceiver);
		if (mProviderTestRunnable != null) {
		mHandler.removeCallbacks(mProviderTestRunnable);
		}
		}

		// Cancel any outstanding thumbnail requests
		@@ -1206,7 +1293,7 @@ public class DirectoryFragment extends Fragment implements SwipeRefreshLayout.On
		}

		final DocumentInfo doc = mActivity.getCurrentDirectory();
		if (doc == null) {
		if (doc == null && !mActivity.getSelectedUser().isQuietModeEnabled(mActivity)) {
		// If there is no root doc, try to reload the root doc from root info.
		Log.w(TAG, "No root document. Try to get root document.");
		getRootDocumentAndMaybeRefreshDocument();