4a1ca86f47
Revoke "SUPPORTS_CREATE" from the Recents faux-Root. Don't allow copy to roots that don't support children. Add friendly access methods to Root info for checking flags. Only show spacer between roots sections when both non-empty. Add docs explaining the "apps" section in roots. Improve logic in the "canCopy" method. Bug: 27232639 Change-Id: If78ee0ff73f0788de863345b560aecd41b23dfb9
88 lines
2.2 KiB
Java
88 lines
2.2 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.documentsui;
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import android.content.AsyncTaskLoader;
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import android.content.Context;
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import com.android.documentsui.model.RootInfo;
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import java.util.Collection;
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public class RootsLoader extends AsyncTaskLoader<Collection<RootInfo>> {
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private final ForceLoadContentObserver mObserver = new ForceLoadContentObserver();
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private final RootsCache mRoots;
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private final State mState;
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private Collection<RootInfo> mResult;
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public RootsLoader(Context context, RootsCache roots, State state) {
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super(context);
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mRoots = roots;
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mState = state;
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getContext().getContentResolver()
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.registerContentObserver(RootsCache.sNotificationUri, false, mObserver);
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}
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@Override
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public final Collection<RootInfo> loadInBackground() {
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return mRoots.getMatchingRootsBlocking(mState);
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}
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@Override
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public void deliverResult(Collection<RootInfo> result) {
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if (isReset()) {
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return;
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}
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mResult = result;
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if (isStarted()) {
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super.deliverResult(result);
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}
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}
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@Override
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protected void onStartLoading() {
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if (mResult != null) {
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deliverResult(mResult);
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}
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if (takeContentChanged() || mResult == null) {
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forceLoad();
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}
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}
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@Override
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protected void onStopLoading() {
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cancelLoad();
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}
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@Override
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protected void onReset() {
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super.onReset();
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// Ensure the loader is stopped
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onStopLoading();
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mResult = null;
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getContext().getContentResolver().unregisterContentObserver(mObserver);
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}
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}
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