21de56a946
Introduce new ACTION_PICK_DIRECTORY that allows users to grant access to an entire document subtree. Instead of requiring grants for each individual document, this leverages new prefix URI permission grants by defining new "via"-style URIs: content://com.example/via/12/document/24/ This references document 24 by using a prefix grant given for document 12. Internally, we use isChildDocument() to enforce that 24 is actually a descendant (child, grandchild, etc) of 12. Since this is an optional API, providers indicate support with Root.FLAG_SUPPORTS_DIR_SELECTION. Extend DocumentsUI to support picking directories. Expose createDocument() API to work with returned directories. Offer to canonicalize via-style URIs into direct URIs, generating exact permission grants along the way. Override openAssetFile() to pass through CancellationSignal. Move testing code into ApiDemos. Bug: 10607375 Change-Id: Ifffc1cff878870f8152eb6ca0199c5d014b9cb07
90 lines
2.8 KiB
Java
90 lines
2.8 KiB
Java
/*
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* Copyright (C) 2014 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.app.Fragment;
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import android.app.FragmentManager;
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import android.app.FragmentTransaction;
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import android.os.Bundle;
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import android.text.TextUtils;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Button;
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import com.android.documentsui.model.DocumentInfo;
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import java.util.Locale;
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/**
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* Display pick confirmation bar, usually for selecting a directory.
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*/
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public class PickFragment extends Fragment {
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public static final String TAG = "PickFragment";
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private DocumentInfo mPickTarget;
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private View mContainer;
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private Button mPick;
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public static void show(FragmentManager fm) {
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final PickFragment fragment = new PickFragment();
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final FragmentTransaction ft = fm.beginTransaction();
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ft.replace(R.id.container_save, fragment, TAG);
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ft.commitAllowingStateLoss();
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}
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public static PickFragment get(FragmentManager fm) {
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return (PickFragment) fm.findFragmentByTag(TAG);
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}
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@Override
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public View onCreateView(
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LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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mContainer = inflater.inflate(R.layout.fragment_pick, container, false);
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mPick = (Button) mContainer.findViewById(android.R.id.button1);
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mPick.setOnClickListener(mPickListener);
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setPickTarget(null, null);
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return mContainer;
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}
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private View.OnClickListener mPickListener = new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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final DocumentsActivity activity = DocumentsActivity.get(PickFragment.this);
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activity.onPickRequested(mPickTarget);
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}
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};
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public void setPickTarget(DocumentInfo pickTarget, CharSequence displayName) {
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mPickTarget = pickTarget;
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if (mPickTarget != null) {
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mContainer.setVisibility(View.VISIBLE);
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final Locale locale = getResources().getConfiguration().locale;
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final String raw = getString(R.string.menu_select).toUpperCase(locale);
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mPick.setText(TextUtils.expandTemplate(raw, displayName));
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} else {
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mContainer.setVisibility(View.GONE);
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}
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}
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}
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