mirror of https://github.com/moparisthebest/k-9
101 lines
3.0 KiB
Java
101 lines
3.0 KiB
Java
package com.fsck.k9.activity.loader;
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import java.io.File;
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import android.content.AsyncTaskLoader;
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import android.content.ContentResolver;
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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 android.provider.OpenableColumns;
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import android.util.Log;
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import com.fsck.k9.K9;
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import com.fsck.k9.activity.misc.Attachment;
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import com.fsck.k9.mail.internet.MimeUtility;
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/**
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* Loader to fetch metadata of an attachment.
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*/
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public class AttachmentInfoLoader extends AsyncTaskLoader<Attachment> {
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private final Attachment mAttachment;
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public AttachmentInfoLoader(Context context, Attachment attachment) {
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super(context);
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mAttachment = attachment;
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}
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@Override
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protected void onStartLoading() {
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if (mAttachment.state == Attachment.LoadingState.METADATA) {
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deliverResult(mAttachment);
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}
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if (takeContentChanged() || mAttachment.state == Attachment.LoadingState.URI_ONLY) {
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forceLoad();
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}
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}
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@Override
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public Attachment loadInBackground() {
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Uri uri = mAttachment.uri;
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String contentType = mAttachment.contentType;
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long size = -1;
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String name = null;
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ContentResolver contentResolver = getContext().getContentResolver();
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Cursor metadataCursor = contentResolver.query(
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uri,
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new String[] { OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE },
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null,
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null,
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null);
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if (metadataCursor != null) {
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try {
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if (metadataCursor.moveToFirst()) {
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name = metadataCursor.getString(0);
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size = metadataCursor.getInt(1);
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}
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} finally {
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metadataCursor.close();
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}
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}
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if (name == null) {
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name = uri.getLastPathSegment();
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}
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String usableContentType = contentType;
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if ((usableContentType == null) || (usableContentType.indexOf('*') != -1)) {
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usableContentType = contentResolver.getType(uri);
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}
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if (usableContentType == null) {
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usableContentType = MimeUtility.getMimeTypeByExtension(name);
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}
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if (size <= 0) {
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String uriString = uri.toString();
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if (uriString.startsWith("file://")) {
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Log.v(K9.LOG_TAG, uriString.substring("file://".length()));
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File f = new File(uriString.substring("file://".length()));
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size = f.length();
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} else {
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Log.v(K9.LOG_TAG, "Not a file: " + uriString);
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}
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} else {
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Log.v(K9.LOG_TAG, "old attachment.size: " + size);
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}
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Log.v(K9.LOG_TAG, "new attachment.size: " + size);
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mAttachment.contentType = usableContentType;
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mAttachment.name = name;
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mAttachment.size = size;
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mAttachment.state = Attachment.LoadingState.METADATA;
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return mAttachment;
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}
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}
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