blob: f5be6c2ab9bcdd788a8ea3d4c7d18ee440f8862e [file] [log] [blame]
/*
* 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.sidebar;
import static com.android.documentsui.base.Shared.compareToIgnoreCaseNullable;
import static com.android.documentsui.base.SharedMinimal.DEBUG;
import static com.android.documentsui.base.SharedMinimal.VERBOSE;
import android.app.admin.DevicePolicyManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.provider.DocumentsContract;
import android.text.TextUtils;
import android.util.Log;
import android.view.ContextMenu;
import android.view.DragEvent;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnDragListener;
import android.view.View.OnGenericMotionListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ListView;
import androidx.annotation.Nullable;
import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import androidx.loader.app.LoaderManager;
import androidx.loader.app.LoaderManager.LoaderCallbacks;
import androidx.loader.content.Loader;
import com.android.documentsui.ActionHandler;
import com.android.documentsui.BaseActivity;
import com.android.documentsui.DocumentsApplication;
import com.android.documentsui.DragHoverListener;
import com.android.documentsui.Injector;
import com.android.documentsui.Injector.Injected;
import com.android.documentsui.ItemDragListener;
import com.android.documentsui.R;
import com.android.documentsui.UserManagerState;
import com.android.documentsui.UserPackage;
import com.android.documentsui.base.BooleanConsumer;
import com.android.documentsui.base.DocumentInfo;
import com.android.documentsui.base.DocumentStack;
import com.android.documentsui.base.Events;
import com.android.documentsui.base.Features;
import com.android.documentsui.base.Providers;
import com.android.documentsui.base.RootInfo;
import com.android.documentsui.base.State;
import com.android.documentsui.base.UserId;
import com.android.documentsui.roots.ProvidersAccess;
import com.android.documentsui.roots.ProvidersCache;
import com.android.documentsui.roots.RootsLoader;
import com.android.documentsui.util.CrossProfileUtils;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
/**
* Display list of known storage backend roots.
*/
public class RootsFragment extends Fragment {
private static final String TAG = "RootsFragment";
private static final String EXTRA_INCLUDE_APPS = "includeApps";
private static final String EXTRA_INCLUDE_APPS_INTENT = "includeAppsIntent";
private static final int CONTEXT_MENU_ITEM_TIMEOUT = 500;
private final OnItemClickListener mItemListener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final Item item = mAdapter.getItem(position);
item.open();
getBaseActivity().setRootsDrawerOpen(false);
}
};
private final OnItemLongClickListener mItemLongClickListener = new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
final Item item = mAdapter.getItem(position);
return item.showAppDetails();
}
};
private ListView mList;
private RootsAdapter mAdapter;
private LoaderCallbacks<Collection<RootInfo>> mCallbacks;
private @Nullable OnDragListener mDragListener;
@Injected
private Injector<?> mInjector;
@Injected
private ActionHandler mActionHandler;
private List<Item> mApplicationItemList;
/**
* Shows the {@link RootsFragment}.
*
* @param fm the FragmentManager for interacting with fragments associated with this
* fragment's activity
* @param includeApps if {@code true}, query the intent from the system and include apps in
* the {@RootsFragment}.
* @param intent the intent to query for package manager
*/
public static RootsFragment show(FragmentManager fm, boolean includeApps, Intent intent) {
final Bundle args = new Bundle();
args.putBoolean(EXTRA_INCLUDE_APPS, includeApps);
args.putParcelable(EXTRA_INCLUDE_APPS_INTENT, intent);
final RootsFragment fragment = new RootsFragment();
fragment.setArguments(args);
final FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.container_roots, fragment);
ft.commitAllowingStateLoss();
return fragment;
}
public static RootsFragment get(FragmentManager fm) {
return (RootsFragment) fm.findFragmentById(R.id.container_roots);
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mInjector = getBaseActivity().getInjector();
final View view = inflater.inflate(R.layout.fragment_roots, container, false);
mList = (ListView) view.findViewById(R.id.roots_list);
mList.setOnItemClickListener(mItemListener);
// ListView does not have right-click specific listeners, so we will have a
// GenericMotionListener to listen for it.
// Currently, right click is viewed the same as long press, so we will have to quickly
// register for context menu when we receive a right click event, and quickly unregister
// it afterwards to prevent context menus popping up upon long presses.
// All other motion events will then get passed to OnItemClickListener.
mList.setOnGenericMotionListener(
new OnGenericMotionListener() {
@Override
public boolean onGenericMotion(View v, MotionEvent event) {
if (Events.isMouseEvent(event)
&& event.getButtonState() == MotionEvent.BUTTON_SECONDARY) {
int x = (int) event.getX();
int y = (int) event.getY();
return onRightClick(v, x, y, () -> {
mInjector.menuManager.showContextMenu(
RootsFragment.this, v, x, y);
});
}
return false;
}
});
mList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
mList.setSelector(new ColorDrawable(Color.TRANSPARENT));
return view;
}
private boolean onRightClick(View v, int x, int y, Runnable callback) {
final int pos = mList.pointToPosition(x, y);
final Item item = mAdapter.getItem(pos);
// If a read-only root, no need to see if top level is writable (it's not)
if (!(item instanceof RootItem) || !((RootItem) item).root.supportsCreate()) {
return false;
}
final RootItem rootItem = (RootItem) item;
getRootDocument(rootItem, (DocumentInfo doc) -> {
rootItem.docInfo = doc;
callback.run();
});
return true;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
final BaseActivity activity = getBaseActivity();
final ProvidersCache providers = DocumentsApplication.getProvidersCache(activity);
final State state = activity.getDisplayState();
mActionHandler = mInjector.actions;
if (mInjector.config.dragAndDropEnabled()) {
final DragHost host = new DragHost(
activity,
DocumentsApplication.getDragAndDropManager(activity),
this::getItem,
mActionHandler);
final ItemDragListener<DragHost> listener = new ItemDragListener<DragHost>(host) {
@Override
public boolean handleDropEventChecked(View v, DragEvent event) {
final Item item = getItem(v);
assert (item.isRoot());
return item.dropOn(event);
}
};
mDragListener = DragHoverListener.create(listener, mList);
mList.setOnDragListener(mDragListener);
}
mCallbacks = new LoaderCallbacks<Collection<RootInfo>>() {
@Override
public Loader<Collection<RootInfo>> onCreateLoader(int id, Bundle args) {
return new RootsLoader(activity, providers, state);
}
@Override
public void onLoadFinished(
Loader<Collection<RootInfo>> loader, Collection<RootInfo> roots) {
if (!isAdded()) {
return;
}
boolean shouldIncludeHandlerApp = getArguments().getBoolean(EXTRA_INCLUDE_APPS,
/* defaultValue= */ false);
Intent handlerAppIntent = getArguments().getParcelable(EXTRA_INCLUDE_APPS_INTENT);
final Intent intent = activity.getIntent();
final boolean excludeSelf =
intent.getBooleanExtra(DocumentsContract.EXTRA_EXCLUDE_SELF, false);
final String excludePackage = excludeSelf ? activity.getCallingPackage() : null;
final boolean maybeShowBadge =
getBaseActivity().getDisplayState().supportsCrossProfile();
// For action which supports cross profile, update the policy value in state if
// necessary.
ResolveInfo crossProfileResolveInfo = null;
UserManagerState userManagerState = null;
if (state.supportsCrossProfile() && handlerAppIntent != null) {
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
userManagerState = DocumentsApplication.getUserManagerState(getContext());
Map<UserId, Boolean> canForwardToProfileIdMap =
userManagerState.getCanForwardToProfileIdMap(handlerAppIntent);
updateCrossProfileMapStateAndMaybeRefresh(canForwardToProfileIdMap);
} else {
crossProfileResolveInfo = CrossProfileUtils.getCrossProfileResolveInfo(
UserId.CURRENT_USER, getContext().getPackageManager(),
handlerAppIntent, getContext(),
state.configStore.isPrivateSpaceInDocsUIEnabled());
updateCrossProfileStateAndMaybeRefresh(
/* canShareAcrossProfile= */ crossProfileResolveInfo != null);
}
}
if (state.configStore.isPrivateSpaceInDocsUIEnabled()
&& userManagerState == null) {
userManagerState = DocumentsApplication.getUserManagerState(getContext());
}
List<Item> sortedItems = sortLoadResult(
getContext(),
state,
roots,
excludePackage,
shouldIncludeHandlerApp ? handlerAppIntent : null,
DocumentsApplication.getProvidersCache(getContext()),
getBaseActivity().getSelectedUser(),
getUserIds(),
maybeShowBadge,
userManagerState);
// This will be removed when feature flag is removed.
if (crossProfileResolveInfo != null && !Features.CROSS_PROFILE_TABS) {
// Add profile item if we don't support cross-profile tab.
sortedItems.add(new SpacerItem());
sortedItems.add(new ProfileItem(crossProfileResolveInfo,
crossProfileResolveInfo.loadLabel(
getContext().getPackageManager()).toString(),
mActionHandler));
}
// Disable drawer if only one root
activity.setRootsDrawerLocked(sortedItems.size() <= 1);
// Get the first visible position and offset
final int firstPosition = mList.getFirstVisiblePosition();
View firstChild = mList.getChildAt(0);
final int offset =
firstChild != null ? firstChild.getTop() - mList.getPaddingTop() : 0;
final int oriItemCount = mAdapter != null ? mAdapter.getCount() : 0;
mAdapter = new RootsAdapter(activity, sortedItems, mDragListener);
mList.setAdapter(mAdapter);
// recover the position.
if (oriItemCount == mAdapter.getCount()) {
mList.setSelectionFromTop(firstPosition, offset);
}
mInjector.shortcutsUpdater.accept(roots);
mInjector.appsRowManager.updateList(mApplicationItemList);
mInjector.appsRowManager.updateView(activity);
onCurrentRootChanged();
}
private List<UserId> getUserIds() {
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
return DocumentsApplication.getUserManagerState(getContext()).getUserIds();
}
return DocumentsApplication.getUserIdManager(getContext()).getUserIds();
}
@Override
public void onLoaderReset(Loader<Collection<RootInfo>> loader) {
mAdapter = null;
mList.setAdapter(null);
}
};
}
/**
* Updates the state values of whether we can share across profiles, if necessary. Also reload
* documents stack if the selected user is not the current user.
*/
private void updateCrossProfileStateAndMaybeRefresh(boolean canShareAcrossProfile) {
final State state = getBaseActivity().getDisplayState();
if (state.canShareAcrossProfile != canShareAcrossProfile) {
state.canShareAcrossProfile = canShareAcrossProfile;
if (!UserId.CURRENT_USER.equals(getBaseActivity().getSelectedUser())) {
mActionHandler.loadDocumentsForCurrentStack();
}
}
}
private void updateCrossProfileMapStateAndMaybeRefresh(
Map<UserId, Boolean> canForwardToProfileIdMap) {
final State state = getBaseActivity().getDisplayState();
if (!state.canForwardToProfileIdMap.equals(canForwardToProfileIdMap)) {
state.canForwardToProfileIdMap = canForwardToProfileIdMap;
if (!UserId.CURRENT_USER.equals(getBaseActivity().getSelectedUser())) {
mActionHandler.loadDocumentsForCurrentStack();
}
}
}
/**
* If the package name of other providers or apps capable of handling the original intent
* include the preferred root source, it will have higher order than others.
*
* @param excludePackage Exclude activities from this given package
* @param handlerAppIntent When not null, apps capable of handling the original intent will
* be included in list of roots (in special section at bottom).
*/
@VisibleForTesting
List<Item> sortLoadResult(
Context context,
State state,
Collection<RootInfo> roots,
@Nullable String excludePackage,
@Nullable Intent handlerAppIntent,
ProvidersAccess providersAccess,
UserId selectedUser,
List<UserId> userIds,
boolean maybeShowBadge,
UserManagerState userManagerState) {
final List<Item> result = new ArrayList<>();
final RootItemListBuilder librariesBuilder = new RootItemListBuilder(selectedUser, userIds);
final RootItemListBuilder storageProvidersBuilder = new RootItemListBuilder(selectedUser,
userIds);
final List<RootItem> otherProviders = new ArrayList<>();
for (final RootInfo root : roots) {
final RootItem item;
if (root.isExternalStorageHome()) {
continue;
} else if (root.isLibrary() || root.isDownloads()) {
item = new RootItem(root, mActionHandler, maybeShowBadge);
librariesBuilder.add(item);
} else if (root.isStorage()) {
item = new RootItem(root, mActionHandler, maybeShowBadge);
storageProvidersBuilder.add(item);
} else {
item = new RootItem(root, mActionHandler,
providersAccess.getPackageName(root.userId, root.authority),
maybeShowBadge);
otherProviders.add(item);
}
}
final List<RootItem> libraries = librariesBuilder.getList();
final List<RootItem> storageProviders = storageProvidersBuilder.getList();
final RootComparator comp = new RootComparator();
Collections.sort(libraries, comp);
Collections.sort(storageProviders, comp);
if (VERBOSE) Log.v(TAG, "Adding library roots: " + libraries);
result.addAll(libraries);
// Only add the spacer if it is actually separating something.
if (!result.isEmpty() && !storageProviders.isEmpty()) {
result.add(new SpacerItem());
}
if (VERBOSE) Log.v(TAG, "Adding storage roots: " + storageProviders);
result.addAll(storageProviders);
final List<Item> rootList = new ArrayList<>();
final List<Item> rootListOtherUser = new ArrayList<>();
final List<List<Item>> rootListAllUsers = new ArrayList<>();
for (int i = 0; i < userIds.size(); ++i) {
rootListAllUsers.add(new ArrayList<>());
}
mApplicationItemList = new ArrayList<>();
if (handlerAppIntent != null) {
includeHandlerApps(state, handlerAppIntent, excludePackage, rootList, rootListOtherUser,
rootListAllUsers, otherProviders, userIds, maybeShowBadge);
} else {
// Only add providers
otherProviders.sort(comp);
for (RootItem item : otherProviders) {
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
createRootListsPrivateSpaceEnabled(item, userIds, rootListAllUsers);
} else {
createRootListsPrivateSpaceDisabled(item, rootList, rootListOtherUser);
}
mApplicationItemList.add(item);
}
}
List<Item> presentableList =
state.configStore.isPrivateSpaceInDocsUIEnabled()
? getPresentableListPrivateSpaceEnabled(
context, state, rootListAllUsers, userIds, userManagerState) :
getPresentableListPrivateSpaceDisabled(context, state, rootList,
rootListOtherUser);
addListToResult(result, presentableList);
return result;
}
private List<Item> getPresentableListPrivateSpaceEnabled(Context context, State state,
List<List<Item>> rootListAllUsers, List<UserId> userIds,
UserManagerState userManagerState) {
return new UserItemsCombiner(context.getResources(),
context.getSystemService(DevicePolicyManager.class), state)
.setRootListForAllUsers(rootListAllUsers)
.createPresentableListForAllUsers(userIds, userManagerState.getUserIdToLabelMap());
}
private List<Item> getPresentableListPrivateSpaceDisabled(Context context, State state,
List<Item> rootList, List<Item> rootListOtherUser) {
return new UserItemsCombiner(context.getResources(),
context.getSystemService(DevicePolicyManager.class), state)
.setRootListForCurrentUser(rootList)
.setRootListForOtherUser(rootListOtherUser)
.createPresentableList();
}
private void addListToResult(List<Item> result, List<Item> rootList) {
if (!result.isEmpty() && !rootList.isEmpty()) {
result.add(new SpacerItem());
}
result.addAll(rootList);
}
/**
* Adds apps capable of handling the original intent will be included in list of roots. If
* the providers and apps are the same package name, combine them as RootAndAppItems.
*/
private void includeHandlerApps(State state,
Intent handlerAppIntent, @Nullable String excludePackage, List<Item> rootList,
List<Item> rootListOtherUser, List<List<Item>> rootListAllUsers,
List<RootItem> otherProviders, List<UserId> userIds, boolean maybeShowBadge) {
if (VERBOSE) Log.v(TAG, "Adding handler apps for intent: " + handlerAppIntent);
Context context = getContext();
final Map<UserPackage, ResolveInfo> appsMapping = new HashMap<>();
final Map<UserPackage, Item> appItems = new HashMap<>();
final String myPackageName = context.getPackageName();
for (UserId userId : userIds) {
final PackageManager pm = userId.getPackageManager(context);
final List<ResolveInfo> infos = pm.queryIntentActivities(
handlerAppIntent, PackageManager.MATCH_DEFAULT_ONLY);
// Omit ourselves and maybe calling package from the list
for (ResolveInfo info : infos) {
if (!info.activityInfo.exported) {
if (VERBOSE) {
Log.v(TAG, "Non exported activity: " + info.activityInfo);
}
continue;
}
final String packageName = info.activityInfo.packageName;
if (!myPackageName.equals(packageName)
&& !TextUtils.equals(excludePackage, packageName)) {
UserPackage userPackage = new UserPackage(userId, packageName);
appsMapping.put(userPackage, info);
if (!CrossProfileUtils.isCrossProfileIntentForwarderActivity(info)) {
final Item item = new AppItem(info, info.loadLabel(pm).toString(), userId,
mActionHandler);
appItems.put(userPackage, item);
if (VERBOSE) Log.v(TAG, "Adding handler app: " + item);
}
}
}
}
// If there are some providers and apps has the same package name, combine them as one item.
for (RootItem rootItem : otherProviders) {
final UserPackage userPackage = new UserPackage(rootItem.userId,
rootItem.getPackageName());
final ResolveInfo resolveInfo = appsMapping.get(userPackage);
final Item item;
if (resolveInfo != null) {
item = new RootAndAppItem(rootItem.root, resolveInfo, mActionHandler,
maybeShowBadge);
appItems.remove(userPackage);
} else {
item = rootItem;
}
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
createRootListsPrivateSpaceEnabled(item, userIds, rootListAllUsers);
} else {
createRootListsPrivateSpaceDisabled(item, rootList, rootListOtherUser);
}
}
for (Item item : appItems.values()) {
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
createRootListsPrivateSpaceEnabled(item, userIds, rootListAllUsers);
} else {
createRootListsPrivateSpaceDisabled(item, rootList, rootListOtherUser);
}
}
final String preferredRootPackage = getResources().getString(
R.string.preferred_root_package, "");
final ItemComparator comp = new ItemComparator(preferredRootPackage);
if (state.configStore.isPrivateSpaceInDocsUIEnabled()) {
addToApplicationItemListPrivateSpaceEnabled(userIds, rootListAllUsers, comp, state);
} else {
addToApplicationItemListPrivateSpaceDisabled(rootList, rootListOtherUser, comp, state);
}
}
private void addToApplicationItemListPrivateSpaceEnabled(List<UserId> userIds,
List<List<Item>> rootListAllUsers, ItemComparator comp, State state) {
for (int i = 0; i < userIds.size(); ++i) {
rootListAllUsers.get(i).sort(comp);
if (UserId.CURRENT_USER.equals(userIds.get(i))) {
mApplicationItemList.addAll(rootListAllUsers.get(i));
} else if (state.supportsCrossProfile && state.canInteractWith(userIds.get(i))) {
mApplicationItemList.addAll(rootListAllUsers.get(i));
}
}
}
private void addToApplicationItemListPrivateSpaceDisabled(List<Item> rootList,
List<Item> rootListOtherUser, ItemComparator comp, State state) {
rootList.sort(comp);
rootListOtherUser.sort(comp);
if (state.supportsCrossProfile() && state.canShareAcrossProfile) {
mApplicationItemList.addAll(rootList);
mApplicationItemList.addAll(rootListOtherUser);
} else {
mApplicationItemList.addAll(rootList);
}
}
private void createRootListsPrivateSpaceEnabled(Item item, List<UserId> userIds,
List<List<Item>> rootListAllUsers) {
for (int i = 0; i < userIds.size(); ++i) {
if (userIds.get(i).equals(item.userId)) {
rootListAllUsers.get(i).add(item);
break;
}
}
}
private void createRootListsPrivateSpaceDisabled(Item item, List<Item> rootList,
List<Item> rootListOtherUser) {
if (UserId.CURRENT_USER.equals(item.userId)) {
rootList.add(item);
} else {
rootListOtherUser.add(item);
}
}
@Override
public void onResume() {
super.onResume();
final Context context = getActivity();
// Update the information for Storage's root
if (context != null) {
DocumentsApplication.getProvidersCache(context).updateAuthorityAsync(
((BaseActivity) context).getSelectedUser(), Providers.AUTHORITY_STORAGE);
}
onDisplayStateChanged();
}
public void onDisplayStateChanged() {
final Context context = getActivity();
final State state = ((BaseActivity) context).getDisplayState();
if (state.action == State.ACTION_GET_CONTENT) {
mList.setOnItemLongClickListener(mItemLongClickListener);
} else {
mList.setOnItemLongClickListener(null);
mList.setLongClickable(false);
}
LoaderManager.getInstance(this).restartLoader(2, null, mCallbacks);
}
public void onCurrentRootChanged() {
if (mAdapter == null) {
return;
}
final RootInfo root = ((BaseActivity) getActivity()).getCurrentRoot();
for (int i = 0; i < mAdapter.getCount(); i++) {
final Object item = mAdapter.getItem(i);
if (item instanceof RootItem) {
final RootInfo testRoot = ((RootItem) item).root;
if (Objects.equals(testRoot, root)) {
// b/37358441 should reload all root title after configuration changed
root.title = testRoot.title;
mList.setItemChecked(i, true);
return;
}
}
}
}
/**
* Called when the selected user is changed. It reloads roots with the current user.
*/
public void onSelectedUserChanged() {
LoaderManager.getInstance(this).restartLoader(/* id= */ 2, /* args= */ null, mCallbacks);
}
/**
* Attempts to shift focus back to the navigation drawer.
*/
public boolean requestFocus() {
return mList.requestFocus();
}
private BaseActivity getBaseActivity() {
return (BaseActivity) getActivity();
}
@Override
public void onCreateContextMenu(
ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
AdapterContextMenuInfo adapterMenuInfo = (AdapterContextMenuInfo) menuInfo;
final Item item = mAdapter.getItem(adapterMenuInfo.position);
BaseActivity activity = getBaseActivity();
item.createContextMenu(menu, activity.getMenuInflater(), mInjector.menuManager);
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo adapterMenuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
// There is a possibility that this is called from DirectoryFragment since
// all fragments' onContextItemSelected gets called when any menu item is selected
// This is to guard against it since DirectoryFragment's RecylerView does not have a
// menuInfo
if (adapterMenuInfo == null) {
return false;
}
final RootItem rootItem = (RootItem) mAdapter.getItem(adapterMenuInfo.position);
final int id = item.getItemId();
if (id == R.id.root_menu_eject_root) {
final View ejectIcon = adapterMenuInfo.targetView.findViewById(R.id.action_icon);
ejectClicked(ejectIcon, rootItem.root, mActionHandler);
return true;
} else if (id == R.id.root_menu_open_in_new_window) {
mActionHandler.openInNewWindow(new DocumentStack(rootItem.root));
return true;
} else if (id == R.id.root_menu_paste_into_folder) {
mActionHandler.pasteIntoFolder(rootItem.root);
return true;
} else if (id == R.id.root_menu_settings) {
mActionHandler.openSettings(rootItem.root);
return true;
}
if (DEBUG) {
Log.d(TAG, "Unhandled menu item selected: " + item);
}
return false;
}
private void getRootDocument(RootItem rootItem, RootUpdater updater) {
// We need to start a GetRootDocumentTask so we can know whether items can be directly
// pasted into root
mActionHandler.getRootDocument(
rootItem.root,
CONTEXT_MENU_ITEM_TIMEOUT,
(DocumentInfo doc) -> {
updater.updateDocInfoForRoot(doc);
});
}
private Item getItem(View v) {
final int pos = (Integer) v.getTag(R.id.item_position_tag);
return mAdapter.getItem(pos);
}
static void ejectClicked(View ejectIcon, RootInfo root, ActionHandler actionHandler) {
assert (ejectIcon != null);
assert (!root.ejecting);
ejectIcon.setEnabled(false);
root.ejecting = true;
actionHandler.ejectRoot(
root,
new BooleanConsumer() {
@Override
public void accept(boolean ejected) {
// Event if ejected is false, we should reset, since the op failed.
// Either way, we are no longer attempting to eject the device.
root.ejecting = false;
// If the view is still visible, we update its state.
if (ejectIcon.getVisibility() == View.VISIBLE) {
ejectIcon.setEnabled(!ejected);
}
}
});
}
private static class RootComparator implements Comparator<RootItem> {
@Override
public int compare(RootItem lhs, RootItem rhs) {
return lhs.root.compareTo(rhs.root);
}
}
/**
* The comparator of {@link AppItem}, {@link RootItem} and {@link RootAndAppItem}.
* Sort by if the item's package name starts with the preferred package name,
* then title, then summary. Because the {@link AppItem} doesn't have summary,
* it will have lower order than other same title items.
*/
@VisibleForTesting
static class ItemComparator implements Comparator<Item> {
private final String mPreferredPackageName;
ItemComparator(String preferredPackageName) {
mPreferredPackageName = preferredPackageName;
}
@Override
public int compare(Item lhs, Item rhs) {
// Sort by whether the item starts with preferred package name
if (!mPreferredPackageName.isEmpty()) {
if (lhs.getPackageName().startsWith(mPreferredPackageName)) {
if (!rhs.getPackageName().startsWith(mPreferredPackageName)) {
// lhs starts with it, but rhs doesn't start with it
return -1;
}
} else {
if (rhs.getPackageName().startsWith(mPreferredPackageName)) {
// lhs doesn't start with it, but rhs starts with it
return 1;
}
}
}
// Sort by title
int score = compareToIgnoreCaseNullable(lhs.title, rhs.title);
if (score != 0) {
return score;
}
// Sort by summary. If the item is AppItem, it doesn't have summary.
// So, the RootItem or RootAndAppItem will have higher order than AppItem.
if (lhs instanceof RootItem) {
return rhs instanceof RootItem ? compareToIgnoreCaseNullable(
((RootItem) lhs).root.summary, ((RootItem) rhs).root.summary) : 1;
}
return rhs instanceof RootItem ? -1 : 0;
}
}
@FunctionalInterface
interface RootUpdater {
void updateDocInfoForRoot(DocumentInfo doc);
}
}