/*
* Copyright (C) 2013 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;
import static com.android.documentsui.BaseActivity.State.ACTION_BROWSE;
import static com.android.documentsui.BaseActivity.State.ACTION_CREATE;
import static com.android.documentsui.BaseActivity.State.ACTION_GET_CONTENT;
import static com.android.documentsui.BaseActivity.State.ACTION_MANAGE;
import static com.android.documentsui.BaseActivity.State.ACTION_OPEN;
import static com.android.documentsui.BaseActivity.State.ACTION_OPEN_COPY_DESTINATION;
import static com.android.documentsui.BaseActivity.State.ACTION_OPEN_TREE;
import static com.android.documentsui.DirectoryFragment.ANIM_DOWN;
import static com.android.documentsui.DirectoryFragment.ANIM_NONE;
import static com.android.documentsui.DirectoryFragment.ANIM_UP;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.ActivityNotFoundException;
import android.content.ClipData;
import android.content.ComponentName;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.graphics.Point;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Parcelable;
import android.provider.DocumentsContract;
import android.provider.DocumentsContract.Root;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.support.v4.widget.DrawerLayout.DrawerListener;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.BaseAdapter;
import android.widget.Spinner;
import android.widget.Toast;
import android.widget.Toolbar;
import com.android.documentsui.RecentsProvider.RecentColumns;
import com.android.documentsui.RecentsProvider.ResumeColumns;
import com.android.documentsui.model.DocumentInfo;
import com.android.documentsui.model.DocumentStack;
import com.android.documentsui.model.DurableUtils;
import com.android.documentsui.model.RootInfo;
public class DocumentsActivity extends BaseActivity {
private static final int CODE_FORWARD = 42;
public static final String TAG = "Documents";
private boolean mShowAsDialog;
private Toolbar mToolbar;
private Spinner mToolbarStack;
private Toolbar mRootsToolbar;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private View mRootsDrawer;
private DirectoryContainerView mDirectoryContainer;
private State mState;
private ItemSelectedListener mStackListener;
private BaseAdapter mStackAdapter;
public DocumentsActivity() {
super(TAG);
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setResult(Activity.RESULT_CANCELED);
setContentView(R.layout.activity);
final Context context = this;
final Resources res = getResources();
mShowAsDialog = res.getBoolean(R.bool.show_as_dialog);
if (mShowAsDialog) {
// Strongly define our horizontal dimension; we leave vertical as
// WRAP_CONTENT so that system resizes us when IME is showing.
final WindowManager.LayoutParams a = getWindow().getAttributes();
final Point size = new Point();
getWindowManager().getDefaultDisplay().getSize(size);
a.width = (int) res.getFraction(R.dimen.dialog_width, size.x, size.x);
getWindow().setAttributes(a);
} else {
// Non-dialog means we have a drawer
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_hamburger, R.string.drawer_open, R.string.drawer_close);
mDrawerLayout.setDrawerListener(mDrawerListener);
mRootsDrawer = findViewById(R.id.drawer_roots);
}
mDirectoryContainer = (DirectoryContainerView) findViewById(R.id.container_directory);
mState = (icicle != null)
? icicle.<State>getParcelable(EXTRA_STATE)
: buildDefaultState();
mToolbar = (Toolbar) findViewById(R.id.toolbar);
mToolbar.setTitleTextAppearance(context,
android.R.style.TextAppearance_DeviceDefault_Widget_ActionBar_Title);
mStackAdapter = new StackAdapter();
mStackListener = new ItemSelectedListener();
mToolbarStack = (Spinner) findViewById(R.id.stack);
mToolbarStack.setOnItemSelectedListener(mStackListener);
mRootsToolbar = (Toolbar) findViewById(R.id.roots_toolbar);
if (mRootsToolbar != null) {
mRootsToolbar.setTitleTextAppearance(context,
android.R.style.TextAppearance_DeviceDefault_Widget_ActionBar_Title);
}
setActionBar(mToolbar);
// Hide roots when we're managing a specific root
if (mState.action == ACTION_MANAGE || mState.action == ACTION_BROWSE) {
if (mShowAsDialog) {
findViewById(R.id.container_roots).setVisibility(View.GONE);
} else {
mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
}
}
if (mState.action == ACTION_CREATE) {
final String mimeType = getIntent().getType();
final String title = getIntent().getStringExtra(Intent.EXTRA_TITLE);
SaveFragment.show(getFragmentManager(), mimeType, title);
} else if (mState.action == ACTION_OPEN_TREE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
PickFragment.show(getFragmentManager());
}
if (mState.action == ACTION_GET_CONTENT) {
final Intent moreApps = new Intent(getIntent());
moreApps.setComponent(null);
moreApps.setPackage(null);
RootsFragment.show(getFragmentManager(), moreApps);
} else if (mState.action == ACTION_OPEN ||
mState.action == ACTION_CREATE ||
mState.action == ACTION_OPEN_TREE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
RootsFragment.show(getFragmentManager(), null);
}
if (!mState.restored) {
// In this case, we set the activity title in AsyncTask.onPostExecute(). To prevent
// talkback from reading aloud the default title, we clear it here.
setTitle("");
if (mState.action == ACTION_MANAGE || mState.action == ACTION_BROWSE) {
final Uri rootUri = getIntent().getData();
new RestoreRootTask(rootUri).executeOnExecutor(getCurrentExecutor());
} else {
new RestoreStackTask().execute();
}
// Show a failure dialog if there was a failed operation.
final Intent intent = getIntent();
final DocumentStack dstStack = intent.getParcelableExtra(CopyService.EXTRA_STACK);
final int failure = intent.getIntExtra(CopyService.EXTRA_FAILURE, 0);
if (failure != 0) {
final ArrayList<DocumentInfo> failedSrcList =
intent.getParcelableArrayListExtra(CopyService.EXTRA_SRC_LIST);
FailureDialogFragment.show(getFragmentManager(), failure, failedSrcList, dstStack);
}
} else {
onCurrentDirectoryChanged(ANIM_NONE);
}
}
private State buildDefaultState() {
State state = new State();
final Intent intent = getIntent();
final String action = intent.getAction();
if (Intent.ACTION_OPEN_DOCUMENT.equals(action)) {
state.action = ACTION_OPEN;
} else if (Intent.ACTION_CREATE_DOCUMENT.equals(action)) {
state.action = ACTION_CREATE;
} else if (Intent.ACTION_GET_CONTENT.equals(action)) {
state.action = ACTION_GET_CONTENT;
} else if (Intent.ACTION_OPEN_DOCUMENT_TREE.equals(action)) {
state.action = ACTION_OPEN_TREE;
} else if (DocumentsContract.ACTION_MANAGE_ROOT.equals(action)) {
state.action = ACTION_MANAGE;
} else if (DocumentsContract.ACTION_BROWSE_DOCUMENT_ROOT.equals(action)) {
state.action = ACTION_BROWSE;
} else if (DocumentsIntent.ACTION_OPEN_COPY_DESTINATION.equals(action)) {
state.action = ACTION_OPEN_COPY_DESTINATION;
}
if (state.action == ACTION_OPEN || state.action == ACTION_GET_CONTENT) {
state.allowMultiple = intent.getBooleanExtra(
Intent.EXTRA_ALLOW_MULTIPLE, false);
}
if (state.action == ACTION_MANAGE || state.action == ACTION_BROWSE) {
state.acceptMimes = new String[] { "*/*" };
state.allowMultiple = true;
} else if (intent.hasExtra(Intent.EXTRA_MIME_TYPES)) {
state.acceptMimes = intent.getStringArrayExtra(Intent.EXTRA_MIME_TYPES);
} else {
state.acceptMimes = new String[] { intent.getType() };
}
state.localOnly = intent.getBooleanExtra(Intent.EXTRA_LOCAL_ONLY, false);
state.forceAdvanced = intent.getBooleanExtra(DocumentsContract.EXTRA_SHOW_ADVANCED, false);
state.showAdvanced = state.forceAdvanced
| LocalPreferences.getDisplayAdvancedDevices(this);
if (state.action == ACTION_MANAGE || state.action == ACTION_BROWSE) {
state.showSize = true;
} else {
state.showSize = LocalPreferences.getDisplayFileSize(this);
}
if (state.action == ACTION_OPEN_COPY_DESTINATION) {
state.directoryCopy = intent.getBooleanExtra(
BaseActivity.DocumentsIntent.EXTRA_DIRECTORY_COPY, false);
}
state.excludedAuthorities = getExcludedAuthorities();
return state;
}
private class RestoreRootTask extends AsyncTask<Void, Void, RootInfo> {
private Uri mRootUri;
public RestoreRootTask(Uri rootUri) {
mRootUri = rootUri;
}
@Override
protected RootInfo doInBackground(Void... params) {
final String rootId = DocumentsContract.getRootId(mRootUri);
return mRoots.getRootOneshot(mRootUri.getAuthority(), rootId);
}
@Override
protected void onPostExecute(RootInfo root) {
if (isDestroyed()) return;
mState.restored = true;
if (root != null) {
onRootPicked(root);
} else {
Log.w(TAG, "Failed to find root: " + mRootUri);
finish();
}
}
}
@Override
void onStackRestored(boolean restored, boolean external) {
// Show drawer when no stack restored, but only when requesting
// non-visual content. However, if we last used an external app,
// drawer is always shown.
boolean showDrawer = false;
if (!restored) {
showDrawer = true;
}
if (MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, mState.acceptMimes)) {
showDrawer = false;
}
if (external && mState.action == ACTION_GET_CONTENT) {
showDrawer = true;
}
if (showDrawer) {
setRootsDrawerOpen(true);
}
}
public void onAppPicked(ResolveInfo info) {
final Intent intent = new Intent(getIntent());
intent.setFlags(intent.getFlags() & ~Intent.FLAG_ACTIVITY_FORWARD_RESULT);
intent.setComponent(new ComponentName(
info.activityInfo.applicationInfo.packageName, info.activityInfo.name));
startActivityForResult(intent, CODE_FORWARD);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.d(TAG, "onActivityResult() code=" + resultCode);
// Only relay back results when not canceled; otherwise stick around to
// let the user pick another app/backend.
if (requestCode == CODE_FORWARD && resultCode != RESULT_CANCELED) {
// Remember that we last picked via external app
final String packageName = getCallingPackageMaybeExtra();
final ContentValues values = new ContentValues();
values.put(ResumeColumns.EXTERNAL, 1);
getContentResolver().insert(RecentsProvider.buildResume(packageName), values);
// Pass back result to original caller
setResult(resultCode, data);
finish();
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
private DrawerListener mDrawerListener = new DrawerListener() {
@Override
public void onDrawerSlide(View drawerView, float slideOffset) {
mDrawerToggle.onDrawerSlide(drawerView, slideOffset);
}
@Override
public void onDrawerOpened(View drawerView) {
mDrawerToggle.onDrawerOpened(drawerView);
}
@Override
public void onDrawerClosed(View drawerView) {
mDrawerToggle.onDrawerClosed(drawerView);
}
@Override
public void onDrawerStateChanged(int newState) {
mDrawerToggle.onDrawerStateChanged(newState);
}
};
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
if (mDrawerToggle != null) {
mDrawerToggle.syncState();
}
updateActionBar();
}
public void setRootsDrawerOpen(boolean open) {
if (!mShowAsDialog) {
if (open) {
mDrawerLayout.openDrawer(mRootsDrawer);
} else {
mDrawerLayout.closeDrawer(mRootsDrawer);
}
}
}
private boolean isRootsDrawerOpen() {
if (mShowAsDialog) {
return false;
} else {
return mDrawerLayout.isDrawerOpen(mRootsDrawer);
}
}
@Override
public void updateActionBar() {
if (mRootsToolbar != null) {
final String prompt = getIntent().getStringExtra(DocumentsContract.EXTRA_PROMPT);
if (prompt != null) {
mRootsToolbar.setTitle(prompt);
} else {
if (mState.action == ACTION_OPEN ||
mState.action == ACTION_GET_CONTENT ||
mState.action == ACTION_OPEN_TREE) {
mRootsToolbar.setTitle(R.string.title_open);
} else if (mState.action == ACTION_CREATE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
mRootsToolbar.setTitle(R.string.title_save);
}
}
}
if (!mShowAsDialog && mDrawerLayout.getDrawerLockMode(mRootsDrawer) ==
DrawerLayout.LOCK_MODE_UNLOCKED) {
mToolbar.setNavigationIcon(R.drawable.ic_hamburger);
mToolbar.setNavigationContentDescription(R.string.drawer_open);
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setRootsDrawerOpen(true);
}
});
} else {
mToolbar.setNavigationIcon(null);
mToolbar.setNavigationContentDescription(R.string.drawer_open);
mToolbar.setNavigationOnClickListener(null);
}
if (mSearchManager.isExpanded()) {
mToolbar.setTitle(null);
mToolbarStack.setVisibility(View.GONE);
mToolbarStack.setAdapter(null);
} else {
if (mState.stack.size() <= 1) {
mToolbar.setTitle(getCurrentRoot().title);
mToolbarStack.setVisibility(View.GONE);
mToolbarStack.setAdapter(null);
} else {
mToolbar.setTitle(null);
mToolbarStack.setVisibility(View.VISIBLE);
mToolbarStack.setAdapter(mStackAdapter);
mStackListener.mIgnoreNextNavigation = true;
mToolbarStack.setSelection(mStackAdapter.getCount() - 1);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
boolean showMenu = super.onCreateOptionsMenu(menu);
// Most actions are visible when showing as dialog
if (mShowAsDialog) {
expandMenus(menu);
}
return showMenu;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
final RootInfo root = getCurrentRoot();
final DocumentInfo cwd = getCurrentDirectory();
final MenuItem createDir = menu.findItem(R.id.menu_create_dir);
final MenuItem grid = menu.findItem(R.id.menu_grid);
final MenuItem list = menu.findItem(R.id.menu_list);
final MenuItem advanced = menu.findItem(R.id.menu_advanced);
final MenuItem fileSize = menu.findItem(R.id.menu_file_size);
final MenuItem settings = menu.findItem(R.id.menu_settings);
boolean fileSizeVisible = !(mState.action == ACTION_MANAGE
|| mState.action == ACTION_BROWSE);
if (mState.action == ACTION_CREATE
|| mState.action == ACTION_OPEN_TREE
|| mState.action == ACTION_OPEN_COPY_DESTINATION) {
createDir.setVisible(cwd != null && cwd.isCreateSupported());
mSearchManager.showMenu(false);
// No display options in recent directories
if (cwd == null) {
grid.setVisible(false);
list.setVisible(false);
fileSizeVisible = false;
}
if (mState.action == ACTION_CREATE) {
final FragmentManager fm = getFragmentManager();
SaveFragment.get(fm).setSaveEnabled(cwd != null && cwd.isCreateSupported());
}
} else {
createDir.setVisible(false);
}
advanced.setVisible(!(mState.action == ACTION_MANAGE || mState.action == ACTION_BROWSE));
fileSize.setVisible(fileSizeVisible);
settings.setVisible((mState.action == ACTION_MANAGE || mState.action == ACTION_BROWSE)
&& (root.flags & Root.FLAG_HAS_SETTINGS) != 0);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle != null && mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onBackPressed() {
// While action bar is expanded, the state stack UI is hidden.
if (mSearchManager.cancelSearch()) {
return;
}
if (!mState.stackTouched) {
super.onBackPressed();
return;
}
final int size = mState.stack.size();
if (size > 1) {
mState.stack.pop();
onCurrentDirectoryChanged(ANIM_UP);
} else if (size == 1 && !isRootsDrawerOpen()) {
// TODO: open root drawer once we can capture back key
super.onBackPressed();
} else {
super.onBackPressed();
}
}
@Override
public State getDisplayState() {
return mState;
}
@Override
void onDirectoryChanged(int anim) {
final FragmentManager fm = getFragmentManager();
final RootInfo root = getCurrentRoot();
final DocumentInfo cwd = getCurrentDirectory();
mDirectoryContainer.setDrawDisappearingFirst(anim == ANIM_DOWN);
if (cwd == null) {
// No directory means recents
if (mState.action == ACTION_CREATE ||
mState.action == ACTION_OPEN_TREE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
RecentsCreateFragment.show(fm);
} else {
DirectoryFragment.showRecentsOpen(fm, anim);
// Start recents in grid when requesting visual things
final boolean visualMimes = MimePredicate.mimeMatches(
MimePredicate.VISUAL_MIMES, mState.acceptMimes);
mState.userMode = visualMimes ? State.MODE_GRID : State.MODE_LIST;
mState.derivedMode = mState.userMode;
}
} else {
if (mState.currentSearch != null) {
// Ongoing search
DirectoryFragment.showSearch(fm, root, mState.currentSearch, anim);
} else {
// Normal boring directory
DirectoryFragment.showNormal(fm, root, cwd, anim);
}
}
// Forget any replacement target
if (mState.action == ACTION_CREATE) {
final SaveFragment save = SaveFragment.get(fm);
if (save != null) {
save.setReplaceTarget(null);
}
}
if (mState.action == ACTION_OPEN_TREE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
final PickFragment pick = PickFragment.get(fm);
if (pick != null) {
pick.setPickTarget(mState.action, cwd);
}
}
}
void onSaveRequested(DocumentInfo replaceTarget) {
new ExistingFinishTask(replaceTarget.derivedUri).executeOnExecutor(getCurrentExecutor());
}
void onSaveRequested(String mimeType, String displayName) {
new CreateFinishTask(mimeType, displayName).executeOnExecutor(getCurrentExecutor());
}
@Override
void onRootPicked(RootInfo root) {
super.onRootPicked(root);
setRootsDrawerOpen(false);
}
@Override
public void onDocumentPicked(DocumentInfo doc) {
final FragmentManager fm = getFragmentManager();
if (doc.isDirectory()) {
mState.stack.push(doc);
mState.stackTouched = true;
onCurrentDirectoryChanged(ANIM_DOWN);
} else if (mState.action == ACTION_OPEN || mState.action == ACTION_GET_CONTENT) {
// Explicit file picked, return
new ExistingFinishTask(doc.derivedUri).executeOnExecutor(getCurrentExecutor());
} else if (mState.action == ACTION_CREATE) {
// Replace selected file
SaveFragment.get(fm).setReplaceTarget(doc);
} else if (mState.action == ACTION_MANAGE) {
// First try managing the document; we expect manager to filter
// based on authority, so we don't grant.
final Intent manage = new Intent(DocumentsContract.ACTION_MANAGE_DOCUMENT);
manage.setData(doc.derivedUri);
try {
startActivity(manage);
} catch (ActivityNotFoundException ex) {
// Fall back to viewing
final Intent view = new Intent(Intent.ACTION_VIEW);
view.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
view.setData(doc.derivedUri);
try {
startActivity(view);
} catch (ActivityNotFoundException ex2) {
Toast.makeText(this, R.string.toast_no_application, Toast.LENGTH_SHORT).show();
}
}
} else if (mState.action == ACTION_BROWSE) {
// Go straight to viewing
final Intent view = new Intent(Intent.ACTION_VIEW);
view.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
view.setData(doc.derivedUri);
try {
startActivity(view);
} catch (ActivityNotFoundException ex) {
Toast.makeText(this, R.string.toast_no_application, Toast.LENGTH_SHORT).show();
}
}
}
@Override
public void onDocumentsPicked(List<DocumentInfo> docs) {
if (mState.action == ACTION_OPEN || mState.action == ACTION_GET_CONTENT) {
final int size = docs.size();
final Uri[] uris = new Uri[size];
for (int i = 0; i < size; i++) {
uris[i] = docs.get(i).derivedUri;
}
new ExistingFinishTask(uris).executeOnExecutor(getCurrentExecutor());
}
}
public void onPickRequested(DocumentInfo pickTarget) {
Uri result;
if (mState.action == ACTION_OPEN_TREE) {
result = DocumentsContract.buildTreeDocumentUri(
pickTarget.authority, pickTarget.documentId);
} else if (mState.action == ACTION_OPEN_COPY_DESTINATION) {
result = pickTarget.derivedUri;
} else {
// Should not be reached.
throw new IllegalStateException("Invalid mState.action.");
}
new PickFinishTask(result).executeOnExecutor(getCurrentExecutor());
}
@Override
void saveStackBlocking() {
final ContentResolver resolver = getContentResolver();
final ContentValues values = new ContentValues();
final byte[] rawStack = DurableUtils.writeToArrayOrNull(mState.stack);
if (mState.action == ACTION_CREATE ||
mState.action == ACTION_OPEN_TREE ||
mState.action == ACTION_OPEN_COPY_DESTINATION) {
// Remember stack for last create
values.clear();
values.put(RecentColumns.KEY, mState.stack.buildKey());
values.put(RecentColumns.STACK, rawStack);
resolver.insert(RecentsProvider.buildRecent(), values);
}
// Remember location for next app launch
final String packageName = getCallingPackageMaybeExtra();
values.clear();
values.put(ResumeColumns.STACK, rawStack);
values.put(ResumeColumns.EXTERNAL, 0);
resolver.insert(RecentsProvider.buildResume(packageName), values);
}
@Override
void onTaskFinished(Uri... uris) {
Log.d(TAG, "onFinished() " + Arrays.toString(uris));
final Intent intent = new Intent();
if (uris.length == 1) {
intent.setData(uris[0]);
} else if (uris.length > 1) {
final ClipData clipData = new ClipData(
null, mState.acceptMimes, new ClipData.Item(uris[0]));
for (int i = 1; i < uris.length; i++) {
clipData.addItem(new ClipData.Item(uris[i]));
}
intent.setClipData(clipData);
}
if (mState.action == ACTION_GET_CONTENT) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
} else if (mState.action == ACTION_OPEN_TREE) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION
| Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
| Intent.FLAG_GRANT_PREFIX_URI_PERMISSION);
} else if (mState.action == ACTION_OPEN_COPY_DESTINATION) {
// Picking a copy destination is only used internally by us, so we
// don't need to extend permissions to the caller.
intent.putExtra(CopyService.EXTRA_STACK, (Parcelable) mState.stack);
} else {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION
| Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
}
setResult(Activity.RESULT_OK, intent);
finish();
}
public static DocumentsActivity get(Fragment fragment) {
return (DocumentsActivity) fragment.getActivity();
}
private final class PickFinishTask extends AsyncTask<Void, Void, Void> {
private final Uri mUri;
public PickFinishTask(Uri uri) {
mUri = uri;
}
@Override
protected Void doInBackground(Void... params) {
saveStackBlocking();
return null;
}
@Override
protected void onPostExecute(Void result) {
onTaskFinished(mUri);
}
}
final class ExistingFinishTask extends AsyncTask<Void, Void, Void> {
private final Uri[] mUris;
public ExistingFinishTask(Uri... uris) {
mUris = uris;
}
@Override
protected Void doInBackground(Void... params) {
saveStackBlocking();
return null;
}
@Override
protected void onPostExecute(Void result) {
onTaskFinished(mUris);
}
}
/**
* Task that creates a new document in the background.
*/
final class CreateFinishTask extends AsyncTask<Void, Void, Uri> {
private final String mMimeType;
private final String mDisplayName;
public CreateFinishTask(String mimeType, String displayName) {
mMimeType = mimeType;
mDisplayName = displayName;
}
@Override
protected void onPreExecute() {
setPending(true);
}
@Override
protected Uri doInBackground(Void... params) {
final ContentResolver resolver = getContentResolver();
final DocumentInfo cwd = getCurrentDirectory();
ContentProviderClient client = null;
Uri childUri = null;
try {
client = DocumentsApplication.acquireUnstableProviderOrThrow(
resolver, cwd.derivedUri.getAuthority());
childUri = DocumentsContract.createDocument(
client, cwd.derivedUri, mMimeType, mDisplayName);
} catch (Exception e) {
Log.w(TAG, "Failed to create document", e);
} finally {
ContentProviderClient.releaseQuietly(client);
}
if (childUri != null) {
saveStackBlocking();
}
return childUri;
}
@Override
protected void onPostExecute(Uri result) {
if (result != null) {
onTaskFinished(result);
} else {
Toast.makeText(DocumentsActivity.this, R.string.save_error, Toast.LENGTH_SHORT)
.show();
}
setPending(false);
}
}
}