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/*
* Copyright (C) 2016 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.picker;
import static com.android.documentsui.base.State.ACTION_CREATE;
import static com.android.documentsui.base.State.ACTION_GET_CONTENT;
import static com.android.documentsui.base.State.ACTION_OPEN;
import static com.android.documentsui.base.State.ACTION_OPEN_TREE;
import static com.android.documentsui.base.State.ACTION_PICK_COPY_DESTINATION;
import android.provider.DocumentsContract.Document;
import com.android.documentsui.ActivityConfig;
import com.android.documentsui.base.MimeTypes;
import com.android.documentsui.base.State;
/**
* Provides support for Platform specific specializations of DirectoryFragment.
*/
final class Config extends ActivityConfig {
@Override
public boolean canSelectType(String docMimeType, int docFlags, State state) {
if (!isDocumentEnabled(docMimeType, docFlags, state)) {
return false;
}
if (MimeTypes.isDirectoryType(docMimeType)) {
return false;
}
if (state.action == ACTION_OPEN_TREE || state.action == ACTION_PICK_COPY_DESTINATION) {
// In this case nothing *ever* is selectable...the expected user behavior is
// they navigate *into* a folder, then click a confirmation button indicating
// that the current directory is the directory they are picking.
return false;
}
return true;
}
@Override
public boolean isDocumentEnabled(String mimeType, int docFlags, State state) {
// Directories are always enabled.
if (MimeTypes.isDirectoryType(mimeType)) {
return true;
}
switch (state.action) {
case ACTION_PICK_COPY_DESTINATION:
return false;
case ACTION_CREATE:
// Read-only files are disabled when creating.
if ((docFlags & Document.FLAG_SUPPORTS_WRITE) == 0) {
return false;
}
case ACTION_OPEN:
case ACTION_GET_CONTENT:
final boolean isVirtual = (docFlags & Document.FLAG_VIRTUAL_DOCUMENT) != 0;
if (isVirtual && state.openableOnly) {
return false;
}
}
return MimeTypes.mimeMatches(state.acceptMimes, mimeType);
}
}