53 lines
2.0 KiB
Java
53 lines
2.0 KiB
Java
package org.thoughtcrime.securesms.database.loaders;
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import android.content.Context;
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import android.database.Cursor;
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import android.net.Uri;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.core.util.Pair;
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import org.thoughtcrime.securesms.attachments.AttachmentId;
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import org.thoughtcrime.securesms.database.AttachmentDatabase;
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import org.thoughtcrime.securesms.database.DatabaseFactory;
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import org.thoughtcrime.securesms.database.MediaDatabase;
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import org.thoughtcrime.securesms.database.MediaDatabase.Sorting;
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import org.thoughtcrime.securesms.mms.PartAuthority;
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import org.thoughtcrime.securesms.util.AsyncLoader;
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public final class PagingMediaLoader extends AsyncLoader<Pair<Cursor, Integer>> {
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@SuppressWarnings("unused")
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private static final String TAG = PagingMediaLoader.class.getSimpleName();
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private final Uri uri;
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private final boolean leftIsRecent;
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private final Sorting sorting;
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private final long threadId;
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public PagingMediaLoader(@NonNull Context context, long threadId, @NonNull Uri uri, boolean leftIsRecent, @NonNull Sorting sorting) {
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super(context);
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this.threadId = threadId;
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this.uri = uri;
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this.leftIsRecent = leftIsRecent;
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this.sorting = sorting;
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}
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@Override
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public @Nullable Pair<Cursor, Integer> loadInBackground() {
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Cursor cursor = DatabaseFactory.getMediaDatabase(getContext()).getGalleryMediaForThread(threadId, sorting, threadId == MediaDatabase.ALL_THREADS);
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while (cursor.moveToNext()) {
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AttachmentId attachmentId = new AttachmentId(cursor.getLong(cursor.getColumnIndexOrThrow(AttachmentDatabase.ROW_ID)), cursor.getLong(cursor.getColumnIndexOrThrow(AttachmentDatabase.UNIQUE_ID)));
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Uri attachmentUri = PartAuthority.getAttachmentDataUri(attachmentId);
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if (attachmentUri.equals(uri)) {
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return new Pair<>(cursor, leftIsRecent ? cursor.getPosition() : cursor.getCount() - 1 - cursor.getPosition());
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}
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}
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return null;
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}
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}
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