/*
* 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.DirectoryFragment.ANIM_DOWN;
import static com.android.documentsui.DirectoryFragment.ANIM_NONE;
import static com.android.documentsui.DirectoryFragment.ANIM_SIDE;
import static com.android.documentsui.DirectoryFragment.ANIM_UP;
import static com.android.documentsui.DocumentsActivity.State.ACTION_CREATE;
import static com.android.documentsui.DocumentsActivity.State.ACTION_GET_CONTENT;
import static com.android.documentsui.DocumentsActivity.State.ACTION_MANAGE;
import static com.android.documentsui.DocumentsActivity.State.ACTION_OPEN;
import static com.android.documentsui.DocumentsActivity.State.ACTION_OPEN_TREE;
import static com.android.documentsui.DocumentsActivity.State.MODE_GRID;
import static com.android.documentsui.DocumentsActivity.State.MODE_LIST;
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.database.Cursor;
import android.graphics.Point;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Parcel;
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.util.SparseArray;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MenuItem.OnActionExpandListener;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;
import android.widget.Spinner;
import android.widget.TextView;
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;
import com.google.common.collect.Maps;
import libcore.io.IoUtils;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.Executor;
public class DocumentsActivity extends Activity {
public static final String TAG = "Documents";
private static final String EXTRA_STATE = "state";
private static final int CODE_FORWARD = 42;
private boolean mShowAsDialog;
private SearchView mSearchView;
private Toolbar mToolbar;
private Spinner mToolbarStack;
private Toolbar mRootsToolbar;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private View mRootsDrawer;
private DirectoryContainerView mDirectoryContainer;
private boolean mIgnoreNextNavigation;
private boolean mIgnoreNextClose;
private boolean mIgnoreNextCollapse;
private boolean mSearchExpanded;
private RootsCache mRoots;
private State mState;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mRoots = DocumentsApplication.getRootsCache(this);
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);
if (icicle != null) {
mState = icicle.getParcelable(EXTRA_STATE);
} else {
buildDefaultState();
}
mToolbar = (Toolbar) findViewById(R.id.toolbar);
mToolbar.setTitleTextAppearance(context,
android.R.style.TextAppearance_DeviceDefault_Widget_ActionBar_Title);
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) {
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) {
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) {
RootsFragment.show(getFragmentManager(), null);
}
if (!mState.restored) {
if (mState.action == ACTION_MANAGE) {
final Uri rootUri = getIntent().getData();
new RestoreRootTask(rootUri).executeOnExecutor(getCurrentExecutor());
} else {
new RestoreStackTask().execute();
}
} else {
onCurrentDirectoryChanged(ANIM_NONE);
}
}
private void buildDefaultState() {
mState = new State();
final Intent intent = getIntent();
final String action = intent.getAction();
if (Intent.ACTION_OPEN_DOCUMENT.equals(action)) {
mState.action = ACTION_OPEN;
} else if (Intent.ACTION_CREATE_DOCUMENT.equals(action)) {
mState.action = ACTION_CREATE;
} else if (Intent.ACTION_GET_CONTENT.equals(action)) {
mState.action = ACTION_GET_CONTENT;
} else if (Intent.ACTION_OPEN_DOCUMENT_TREE.equals(action)) {
mState.action = ACTION_OPEN_TREE;
} else if (DocumentsContract.ACTION_MANAGE_ROOT.equals(action)) {
mState.action = ACTION_MANAGE;
}
if (mState.action == ACTION_OPEN || mState.action == ACTION_GET_CONTENT) {
mState.allowMultiple = intent.getBooleanExtra(
Intent.EXTRA_ALLOW_MULTIPLE, false);
}
if (mState.action == ACTION_MANAGE) {
mState.acceptMimes = new String[] { "*/*" };
mState.allowMultiple = true;
} else if (intent.hasExtra(Intent.EXTRA_MIME_TYPES)) {
mState.acceptMimes = intent.getStringArrayExtra(Intent.EXTRA_MIME_TYPES);
} else {
mState.acceptMimes = new String[] { intent.getType() };
}
mState.localOnly = intent.getBooleanExtra(Intent.EXTRA_LOCAL_ONLY, false);
mState.forceAdvanced = intent.getBooleanExtra(DocumentsContract.EXTRA_SHOW_ADVANCED, false);
mState.showAdvanced = mState.forceAdvanced
| LocalPreferences.getDisplayAdvancedDevices(this);
if (mState.action == ACTION_MANAGE) {
mState.showSize = true;
} else {
mState.showSize = LocalPreferences.getDisplayFileSize(this);
}
}
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, true);
} else {
Log.w(TAG, "Failed to find root: " + mRootUri);
finish();
}
}
}
private class RestoreStackTask extends AsyncTask<Void, Void, Void> {
private volatile boolean mRestoredStack;
private volatile boolean mExternal;
@Override
protected Void doInBackground(Void... params) {
// Restore last stack for calling package
final String packageName = getCallingPackageMaybeExtra();
final Cursor cursor = getContentResolver()
.query(RecentsProvider.buildResume(packageName), null, null, null, null);
try {
if (cursor.moveToFirst()) {
mExternal = cursor.getInt(cursor.getColumnIndex(ResumeColumns.EXTERNAL)) != 0;
final byte[] rawStack = cursor.getBlob(
cursor.getColumnIndex(ResumeColumns.STACK));
DurableUtils.readFromArray(rawStack, mState.stack);
mRestoredStack = true;
}
} catch (IOException e) {
Log.w(TAG, "Failed to resume: " + e);
} finally {
IoUtils.closeQuietly(cursor);
}
if (mRestoredStack) {
// Update the restored stack to ensure we have freshest data
final Collection<RootInfo> matchingRoots = mRoots.getMatchingRootsBlocking(mState);
try {
mState.stack.updateRoot(matchingRoots);
mState.stack.updateDocuments(getContentResolver());
} catch (FileNotFoundException e) {
Log.w(TAG, "Failed to restore stack: " + e);
mState.stack.reset();
mRestoredStack = false;
}
}
return null;
}
@Override
protected void onPostExecute(Void result) {
if (isDestroyed()) return;
mState.restored = true;
// 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 (!mRestoredStack) {
showDrawer = true;
}
if (MimePredicate.mimeMatches(MimePredicate.VISUAL_MIMES, mState.acceptMimes)) {
showDrawer = false;
}
if (mExternal && mState.action == ACTION_GET_CONTENT) {
showDrawer = true;
}
if (showDrawer) {
setRootsDrawerOpen(true);
}
onCurrentDirectoryChanged(ANIM_NONE);
}
}
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);
}
}
public void updateActionBar() {
if (mRootsToolbar != null) {
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) {
mRootsToolbar.setTitle(R.string.title_save);
}
}
final RootInfo root = getCurrentRoot();
final boolean showRootIcon = mShowAsDialog || (mState.action == ACTION_MANAGE);
if (showRootIcon) {
mToolbar.setNavigationIcon(
root != null ? root.loadToolbarIcon(mToolbar.getContext()) : null);
mToolbar.setNavigationContentDescription(R.string.drawer_open);
mToolbar.setNavigationOnClickListener(null);
} else {
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);
}
});
}
if (mSearchExpanded) {
mToolbar.setTitle(null);
mToolbarStack.setVisibility(View.GONE);
mToolbarStack.setAdapter(null);
} else {
if (mState.stack.size() <= 1) {
mToolbar.setTitle(root.title);
mToolbarStack.setVisibility(View.GONE);
mToolbarStack.setAdapter(null);
} else {
mToolbar.setTitle(null);
mToolbarStack.setVisibility(View.VISIBLE);
mToolbarStack.setAdapter(mStackAdapter);
mIgnoreNextNavigation = true;
mToolbarStack.setSelection(mStackAdapter.getCount() - 1);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.activity, menu);
// Most actions are visible when showing as dialog
if (mShowAsDialog) {
for (int i = 0; i < menu.size(); i++) {
final MenuItem item = menu.getItem(i);
switch (item.getItemId()) {
case R.id.menu_advanced:
case R.id.menu_file_size:
break;
default:
item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
}
}
}
final MenuItem searchMenu = menu.findItem(R.id.menu_search);
mSearchView = (SearchView) searchMenu.getActionView();
mSearchView.setOnQueryTextListener(new OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
mSearchExpanded = true;
mState.currentSearch = query;
mSearchView.clearFocus();
onCurrentDirectoryChanged(ANIM_NONE);
return true;
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
searchMenu.setOnActionExpandListener(new OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
mSearchExpanded = true;
updateActionBar();
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
mSearchExpanded = false;
if (mIgnoreNextCollapse) {
mIgnoreNextCollapse = false;
return true;
}
mState.currentSearch = null;
onCurrentDirectoryChanged(ANIM_NONE);
return true;
}
});
mSearchView.setOnCloseListener(new SearchView.OnCloseListener() {
@Override
public boolean onClose() {
mSearchExpanded = false;
if (mIgnoreNextClose) {
mIgnoreNextClose = false;
return false;
}
mState.currentSearch = null;
onCurrentDirectoryChanged(ANIM_NONE);
return false;
}
});
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
final FragmentManager fm = getFragmentManager();
final RootInfo root = getCurrentRoot();
final DocumentInfo cwd = getCurrentDirectory();
final MenuItem createDir = menu.findItem(R.id.menu_create_dir);
final MenuItem search = menu.findItem(R.id.menu_search);
final MenuItem sort = menu.findItem(R.id.menu_sort);
final MenuItem sortSize = menu.findItem(R.id.menu_sort_size);
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);
sort.setVisible(cwd != null);
grid.setVisible(mState.derivedMode != MODE_GRID);
list.setVisible(mState.derivedMode != MODE_LIST);
if (mState.currentSearch != null) {
// Search uses backend ranking; no sorting
sort.setVisible(false);
search.expandActionView();
mSearchView.setIconified(false);
mSearchView.clearFocus();
mSearchView.setQuery(mState.currentSearch, false);
} else {
mIgnoreNextClose = true;
mSearchView.setIconified(true);
mSearchView.clearFocus();
mIgnoreNextCollapse = true;
search.collapseActionView();
}
// Only sort by size when visible
sortSize.setVisible(mState.showSize);
boolean searchVisible;
boolean fileSizeVisible = mState.action != ACTION_MANAGE;
if (mState.action == ACTION_CREATE || mState.action == ACTION_OPEN_TREE) {
createDir.setVisible(cwd != null && cwd.isCreateSupported());
searchVisible = false;
// No display options in recent directories
if (cwd == null) {
grid.setVisible(false);
list.setVisible(false);
fileSizeVisible = false;
}
if (mState.action == ACTION_CREATE) {
SaveFragment.get(fm).setSaveEnabled(cwd != null && cwd.isCreateSupported());
}
} else {
createDir.setVisible(false);
searchVisible = root != null
&& ((root.flags & Root.FLAG_SUPPORTS_SEARCH) != 0);
}
// TODO: close any search in-progress when hiding
search.setVisible(searchVisible);
advanced.setTitle(LocalPreferences.getDisplayAdvancedDevices(this)
? R.string.menu_advanced_hide : R.string.menu_advanced_show);
fileSize.setTitle(LocalPreferences.getDisplayFileSize(this)
? R.string.menu_file_size_hide : R.string.menu_file_size_show);
advanced.setVisible(mState.action != ACTION_MANAGE);
fileSize.setVisible(fileSizeVisible);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle != null && mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
final int id = item.getItemId();
if (id == android.R.id.home) {
onBackPressed();
return true;
} else if (id == R.id.menu_create_dir) {
CreateDirectoryFragment.show(getFragmentManager());
return true;
} else if (id == R.id.menu_search) {
return false;
} else if (id == R.id.menu_sort_name) {
setUserSortOrder(State.SORT_ORDER_DISPLAY_NAME);
return true;
} else if (id == R.id.menu_sort_date) {
setUserSortOrder(State.SORT_ORDER_LAST_MODIFIED);
return true;
} else if (id == R.id.menu_sort_size) {
setUserSortOrder(State.SORT_ORDER_SIZE);
return true;
} else if (id == R.id.menu_grid) {
setUserMode(State.MODE_GRID);
return true;
} else if (id == R.id.menu_list) {
setUserMode(State.MODE_LIST);
return true;
} else if (id == R.id.menu_advanced) {
setDisplayAdvancedDevices(!LocalPreferences.getDisplayAdvancedDevices(this));
return true;
} else if (id == R.id.menu_file_size) {
setDisplayFileSize(!LocalPreferences.getDisplayFileSize(this));
return true;
} else {
return super.onOptionsItemSelected(item);
}
}
private void setDisplayAdvancedDevices(boolean display) {
LocalPreferences.setDisplayAdvancedDevices(this, display);
mState.showAdvanced = mState.forceAdvanced | display;
RootsFragment.get(getFragmentManager()).onDisplayStateChanged();
invalidateOptionsMenu();
}
private void setDisplayFileSize(boolean display) {
LocalPreferences.setDisplayFileSize(this, display);
mState.showSize = display;
DirectoryFragment.get(getFragmentManager()).onDisplayStateChanged();
invalidateOptionsMenu();
}
/**
* Update UI to reflect internal state changes not from user.
*/
public void onStateChanged() {
invalidateOptionsMenu();
}
/**
* Set state sort order based on explicit user action.
*/
private void setUserSortOrder(int sortOrder) {
mState.userSortOrder = sortOrder;
DirectoryFragment.get(getFragmentManager()).onUserSortOrderChanged();
}
/**
* Set state mode based on explicit user action.
*/
private void setUserMode(int mode) {
mState.userMode = mode;
DirectoryFragment.get(getFragmentManager()).onUserModeChanged();
}
public void setPending(boolean pending) {
final SaveFragment save = SaveFragment.get(getFragmentManager());
if (save != null) {
save.setPending(pending);
}
}
@Override
public void onBackPressed() {
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
protected void onSaveInstanceState(Bundle state) {
super.onSaveInstanceState(state);
state.putParcelable(EXTRA_STATE, mState);
}
@Override
protected void onRestoreInstanceState(Bundle state) {
super.onRestoreInstanceState(state);
}
private BaseAdapter mStackAdapter = new BaseAdapter() {
@Override
public int getCount() {
return mState.stack.size();
}
@Override
public DocumentInfo getItem(int position) {
return mState.stack.get(mState.stack.size() - position - 1);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_subdir_title, parent, false);
}
final TextView title = (TextView) convertView.findViewById(android.R.id.title);
final DocumentInfo doc = getItem(position);
if (position == 0) {
final RootInfo root = getCurrentRoot();
title.setText(root.title);
} else {
title.setText(doc.displayName);
}
return convertView;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_subdir, parent, false);
}
final ImageView subdir = (ImageView) convertView.findViewById(R.id.subdir);
final TextView title = (TextView) convertView.findViewById(android.R.id.title);
final DocumentInfo doc = getItem(position);
if (position == 0) {
final RootInfo root = getCurrentRoot();
title.setText(root.title);
subdir.setVisibility(View.GONE);
} else {
title.setText(doc.displayName);
subdir.setVisibility(View.VISIBLE);
}
return convertView;
}
};
private OnItemSelectedListener mStackListener = new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
if (mIgnoreNextNavigation) {
mIgnoreNextNavigation = false;
return;
}
while (mState.stack.size() > position + 1) {
mState.stackTouched = true;
mState.stack.pop();
}
onCurrentDirectoryChanged(ANIM_UP);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// Ignored
}
};
public RootInfo getCurrentRoot() {
if (mState.stack.root != null) {
return mState.stack.root;
} else {
return mRoots.getRecentsRoot();
}
}
public DocumentInfo getCurrentDirectory() {
return mState.stack.peek();
}
private String getCallingPackageMaybeExtra() {
final String extra = getIntent().getStringExtra(DocumentsContract.EXTRA_PACKAGE_NAME);
return (extra != null) ? extra : getCallingPackage();
}
public Executor getCurrentExecutor() {
final DocumentInfo cwd = getCurrentDirectory();
if (cwd != null && cwd.authority != null) {
return ProviderExecutor.forAuthority(cwd.authority);
} else {
return AsyncTask.THREAD_POOL_EXECUTOR;
}
}
public State getDisplayState() {
return mState;
}
private void onCurrentDirectoryChanged(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) {
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 ? MODE_GRID : 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) {
final PickFragment pick = PickFragment.get(fm);
if (pick != null) {
final CharSequence displayName = (mState.stack.size() <= 1) ? root.title
: cwd.displayName;
pick.setPickTarget(cwd, displayName);
}
}
final RootsFragment roots = RootsFragment.get(fm);
if (roots != null) {
roots.onCurrentRootChanged();
}
updateActionBar();
invalidateOptionsMenu();
dumpStack();
}
public void onStackPicked(DocumentStack stack) {
try {
// Update the restored stack to ensure we have freshest data
stack.updateDocuments(getContentResolver());
mState.stack = stack;
mState.stackTouched = true;
onCurrentDirectoryChanged(ANIM_SIDE);
} catch (FileNotFoundException e) {
Log.w(TAG, "Failed to restore stack: " + e);
}
}
public void onRootPicked(RootInfo root, boolean closeDrawer) {
// Clear entire backstack and start in new root
mState.stack.root = root;
mState.stack.clear();
mState.stackTouched = true;
if (!mRoots.isRecentsRoot(root)) {
new PickRootTask(root).executeOnExecutor(getCurrentExecutor());
} else {
onCurrentDirectoryChanged(ANIM_SIDE);
}
if (closeDrawer) {
setRootsDrawerOpen(false);
}
}
private class PickRootTask extends AsyncTask<Void, Void, DocumentInfo> {
private RootInfo mRoot;
public PickRootTask(RootInfo root) {
mRoot = root;
}
@Override
protected DocumentInfo doInBackground(Void... params) {
try {
final Uri uri = DocumentsContract.buildDocumentUri(
mRoot.authority, mRoot.documentId);
return DocumentInfo.fromUri(getContentResolver(), uri);
} catch (FileNotFoundException e) {
Log.w(TAG, "Failed to find root", e);
return null;
}
}
@Override
protected void onPostExecute(DocumentInfo result) {
if (result != null) {
mState.stack.push(result);
mState.stackTouched = true;
onCurrentDirectoryChanged(ANIM_SIDE);
}
}
}
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);
}
}
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();
}
}
}
}
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 onSaveRequested(DocumentInfo replaceTarget) {
new ExistingFinishTask(replaceTarget.derivedUri).executeOnExecutor(getCurrentExecutor());
}
public void onSaveRequested(String mimeType, String displayName) {
new CreateFinishTask(mimeType, displayName).executeOnExecutor(getCurrentExecutor());
}
public void onPickRequested(DocumentInfo pickTarget) {
final Uri viaUri = DocumentsContract.buildTreeDocumentUri(pickTarget.authority,
pickTarget.documentId);
new PickFinishTask(viaUri).executeOnExecutor(getCurrentExecutor());
}
private 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) {
// 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);
}
private void onFinished(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 {
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();
}
private 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) {
onFinished(result);
} else {
Toast.makeText(DocumentsActivity.this, R.string.save_error, Toast.LENGTH_SHORT)
.show();
}
setPending(false);
}
}
private 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) {
onFinished(mUris);
}
}
private 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) {
onFinished(mUri);
}
}
public static class State implements android.os.Parcelable {
public int action;
public String[] acceptMimes;
/** Explicit user choice */
public int userMode = MODE_UNKNOWN;
/** Derived after loader */
public int derivedMode = MODE_LIST;
/** Explicit user choice */
public int userSortOrder = SORT_ORDER_UNKNOWN;
/** Derived after loader */
public int derivedSortOrder = SORT_ORDER_DISPLAY_NAME;
public boolean allowMultiple = false;
public boolean showSize = false;
public boolean localOnly = false;
public boolean forceAdvanced = false;
public boolean showAdvanced = false;
public boolean stackTouched = false;
public boolean restored = false;
/** Current user navigation stack; empty implies recents. */
public DocumentStack stack = new DocumentStack();
/** Currently active search, overriding any stack. */
public String currentSearch;
/** Instance state for every shown directory */
public HashMap<String, SparseArray<Parcelable>> dirState = Maps.newHashMap();
public static final int ACTION_OPEN = 1;
public static final int ACTION_CREATE = 2;
public static final int ACTION_GET_CONTENT = 3;
public static final int ACTION_OPEN_TREE = 4;
public static final int ACTION_MANAGE = 5;
public static final int MODE_UNKNOWN = 0;
public static final int MODE_LIST = 1;
public static final int MODE_GRID = 2;
public static final int SORT_ORDER_UNKNOWN = 0;
public static final int SORT_ORDER_DISPLAY_NAME = 1;
public static final int SORT_ORDER_LAST_MODIFIED = 2;
public static final int SORT_ORDER_SIZE = 3;
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeInt(action);
out.writeInt(userMode);
out.writeStringArray(acceptMimes);
out.writeInt(userSortOrder);
out.writeInt(allowMultiple ? 1 : 0);
out.writeInt(showSize ? 1 : 0);
out.writeInt(localOnly ? 1 : 0);
out.writeInt(forceAdvanced ? 1 : 0);
out.writeInt(showAdvanced ? 1 : 0);
out.writeInt(stackTouched ? 1 : 0);
out.writeInt(restored ? 1 : 0);
DurableUtils.writeToParcel(out, stack);
out.writeString(currentSearch);
out.writeMap(dirState);
}
public static final Creator<State> CREATOR = new Creator<State>() {
@Override
public State createFromParcel(Parcel in) {
final State state = new State();
state.action = in.readInt();
state.userMode = in.readInt();
state.acceptMimes = in.readStringArray();
state.userSortOrder = in.readInt();
state.allowMultiple = in.readInt() != 0;
state.showSize = in.readInt() != 0;
state.localOnly = in.readInt() != 0;
state.forceAdvanced = in.readInt() != 0;
state.showAdvanced = in.readInt() != 0;
state.stackTouched = in.readInt() != 0;
state.restored = in.readInt() != 0;
DurableUtils.readFromParcel(in, state.stack);
state.currentSearch = in.readString();
in.readMap(state.dirState, null);
return state;
}
@Override
public State[] newArray(int size) {
return new State[size];
}
};
}
private void dumpStack() {
Log.d(TAG, "Current stack: ");
Log.d(TAG, " * " + mState.stack.root);
for (DocumentInfo doc : mState.stack) {
Log.d(TAG, " +-- " + doc);
}
}
public static DocumentsActivity get(Fragment fragment) {
return (DocumentsActivity) fragment.getActivity();
}
}
|
