| /* |
| * Copyright (C) 2015 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.Shared.DEBUG; |
| import static com.android.documentsui.Shared.EXTRA_BENCHMARK; |
| import static com.android.documentsui.State.ACTION_CREATE; |
| import static com.android.documentsui.State.ACTION_GET_CONTENT; |
| import static com.android.documentsui.State.ACTION_OPEN; |
| import static com.android.documentsui.State.ACTION_OPEN_TREE; |
| import static com.android.documentsui.State.ACTION_PICK_COPY_DESTINATION; |
| import static com.android.documentsui.State.MODE_GRID; |
| |
| import android.app.Activity; |
| import android.app.Fragment; |
| import android.app.FragmentManager; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.MessageQueue.IdleHandler; |
| import android.provider.DocumentsContract; |
| import android.provider.DocumentsContract.Root; |
| import android.support.annotation.CallSuper; |
| import android.support.annotation.LayoutRes; |
| import android.support.annotation.Nullable; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.widget.Spinner; |
| |
| import com.android.documentsui.SearchViewManager.SearchManagerListener; |
| import com.android.documentsui.State.ViewMode; |
| import com.android.documentsui.dirlist.AnimationView; |
| import com.android.documentsui.dirlist.DirectoryFragment; |
| import com.android.documentsui.dirlist.Model; |
| import com.android.documentsui.model.DocumentInfo; |
| import com.android.documentsui.model.DocumentStack; |
| import com.android.documentsui.model.RootInfo; |
| |
| import java.io.FileNotFoundException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.concurrent.Executor; |
| |
| public abstract class BaseActivity extends Activity |
| implements SearchManagerListener, NavigationView.Environment { |
| |
| private static final String BENCHMARK_TESTING_PACKAGE = "com.android.documentsui.appperftests"; |
| |
| State mState; |
| RootsCache mRoots; |
| SearchViewManager mSearchManager; |
| DrawerController mDrawer; |
| NavigationView mNavigator; |
| List<EventListener> mEventListeners = new ArrayList<>(); |
| |
| private final String mTag; |
| private final ContentObserver mRootsCacheObserver = new ContentObserver(new Handler()) { |
| @Override |
| public void onChange(boolean selfChange) { |
| new HandleRootsChangedTask(BaseActivity.this).execute(getCurrentRoot()); |
| } |
| }; |
| |
| @LayoutRes |
| private int mLayoutId; |
| |
| private boolean mNavDrawerHasFocus; |
| private long mStartTime; |
| |
| public abstract void onDocumentPicked(DocumentInfo doc, Model model); |
| public abstract void onDocumentsPicked(List<DocumentInfo> docs); |
| |
| abstract void onTaskFinished(Uri... uris); |
| abstract void refreshDirectory(int anim); |
| /** Allows sub-classes to include information in a newly created State instance. */ |
| abstract void includeState(State initialState); |
| |
| public BaseActivity(@LayoutRes int layoutId, String tag) { |
| mLayoutId = layoutId; |
| mTag = tag; |
| } |
| |
| @CallSuper |
| @Override |
| public void onCreate(Bundle icicle) { |
| // Record the time when onCreate is invoked for metric. |
| mStartTime = new Date().getTime(); |
| |
| super.onCreate(icicle); |
| |
| final Intent intent = getIntent(); |
| |
| addListenerForLaunchCompletion(); |
| |
| setContentView(mLayoutId); |
| |
| mDrawer = DrawerController.create(this); |
| mState = getState(icicle); |
| Metrics.logActivityLaunch(this, mState, intent); |
| |
| mRoots = DocumentsApplication.getRootsCache(this); |
| |
| getContentResolver().registerContentObserver( |
| RootsCache.sNotificationUri, false, mRootsCacheObserver); |
| |
| mSearchManager = new SearchViewManager(this, icicle); |
| |
| DocumentsToolbar toolbar = (DocumentsToolbar) findViewById(R.id.toolbar); |
| setActionBar(toolbar); |
| mNavigator = new NavigationView( |
| mDrawer, |
| toolbar, |
| (Spinner) findViewById(R.id.stack), |
| mState, |
| this); |
| |
| // Base classes must update result in their onCreate. |
| setResult(Activity.RESULT_CANCELED); |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| boolean showMenu = super.onCreateOptionsMenu(menu); |
| |
| getMenuInflater().inflate(R.menu.activity, menu); |
| mNavigator.update(); |
| boolean fullBarSearch = getResources().getBoolean(R.bool.full_bar_search_view); |
| mSearchManager.install((DocumentsToolbar) findViewById(R.id.toolbar), fullBarSearch); |
| |
| return showMenu; |
| } |
| |
| @Override |
| @CallSuper |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| |
| mSearchManager.showMenu(canSearchRoot()); |
| |
| final boolean inRecents = getCurrentDirectory() == null; |
| |
| 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); |
| |
| // Search uses backend ranking; no sorting, recents doesn't support sort. |
| sort.setEnabled(!inRecents && !mSearchManager.isSearching()); |
| sortSize.setVisible(mState.showSize); // Only sort by size when file sizes are visible |
| fileSize.setVisible(!mState.forceSize); |
| |
| // grid/list is effectively a toggle. |
| grid.setVisible(mState.derivedMode != State.MODE_GRID); |
| list.setVisible(mState.derivedMode != State.MODE_LIST); |
| |
| advanced.setVisible(mState.showAdvancedOption); |
| advanced.setTitle(mState.showAdvancedOption && mState.showAdvanced |
| ? 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); |
| |
| return true; |
| } |
| |
| @Override |
| protected void onDestroy() { |
| getContentResolver().unregisterContentObserver(mRootsCacheObserver); |
| super.onDestroy(); |
| } |
| |
| private State getState(@Nullable Bundle icicle) { |
| if (icicle != null) { |
| State state = icicle.<State>getParcelable(Shared.EXTRA_STATE); |
| if (DEBUG) Log.d(mTag, "Recovered existing state object: " + state); |
| return state; |
| } |
| |
| State state = new State(); |
| |
| final Intent intent = getIntent(); |
| |
| state.localOnly = intent.getBooleanExtra(Intent.EXTRA_LOCAL_ONLY, false); |
| state.forceSize = intent.getBooleanExtra(DocumentsContract.EXTRA_SHOW_FILESIZE, false); |
| state.showSize = state.forceSize || LocalPreferences.getDisplayFileSize(this); |
| state.initAcceptMimes(intent); |
| state.excludedAuthorities = getExcludedAuthorities(); |
| |
| includeState(state); |
| |
| // Advanced roots are shown by default without menu option if forced by config or intent. |
| boolean forceAdvanced = Shared.shouldShowDeviceRoot(this, intent); |
| boolean chosenAdvanced = LocalPreferences.getShowDeviceRoot(this, state.action); |
| state.showAdvanced = forceAdvanced || chosenAdvanced; |
| |
| // Menu option is shown for whitelisted intents if advanced roots are not shown by default. |
| state.showAdvancedOption = !forceAdvanced && ( |
| Shared.shouldShowFancyFeatures(this) |
| || state.action == ACTION_OPEN |
| || state.action == ACTION_CREATE |
| || state.action == ACTION_OPEN_TREE |
| || state.action == ACTION_PICK_COPY_DESTINATION |
| || state.action == ACTION_GET_CONTENT); |
| |
| if (DEBUG) Log.d(mTag, "Created new state object: " + state); |
| |
| return state; |
| } |
| |
| public void setRootsDrawerOpen(boolean open) { |
| mNavigator.revealRootsDrawer(open); |
| } |
| |
| void onRootPicked(RootInfo root) { |
| // Clicking on the current root removes search |
| mSearchManager.cancelSearch(); |
| |
| // Skip refreshing if root nor directory didn't change |
| if (root.equals(getCurrentRoot()) && mState.stack.size() == 1) { |
| return; |
| } |
| |
| mState.derivedMode = LocalPreferences.getViewMode(this, root, MODE_GRID); |
| |
| // Clear entire backstack and start in new root |
| mState.onRootChanged(root); |
| |
| // Recents is always in memory, so we just load it directly. |
| // Otherwise we delegate loading data from disk to a task |
| // to ensure a responsive ui. |
| if (mRoots.isRecentsRoot(root)) { |
| refreshCurrentRootAndDirectory(AnimationView.ANIM_NONE); |
| } else { |
| new PickRootTask(this, root).executeOnExecutor(getExecutorForCurrentDirectory()); |
| } |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| |
| switch (item.getItemId()) { |
| case android.R.id.home: |
| onBackPressed(); |
| return true; |
| |
| case R.id.menu_create_dir: |
| showCreateDirectoryDialog(); |
| return true; |
| |
| case R.id.menu_search: |
| // SearchViewManager listens for this directly. |
| return false; |
| |
| case R.id.menu_sort_name: |
| setUserSortOrder(State.SORT_ORDER_DISPLAY_NAME); |
| return true; |
| |
| case R.id.menu_sort_date: |
| setUserSortOrder(State.SORT_ORDER_LAST_MODIFIED); |
| return true; |
| |
| case R.id.menu_sort_size: |
| setUserSortOrder(State.SORT_ORDER_SIZE); |
| return true; |
| |
| case R.id.menu_grid: |
| setViewMode(State.MODE_GRID); |
| return true; |
| |
| case R.id.menu_list: |
| setViewMode(State.MODE_LIST); |
| return true; |
| |
| case R.id.menu_paste_from_clipboard: |
| DirectoryFragment dir = getDirectoryFragment(); |
| if (dir != null) { |
| dir.pasteFromClipboard(); |
| } |
| return true; |
| |
| case R.id.menu_advanced: |
| setDisplayAdvancedDevices(!mState.showAdvanced); |
| return true; |
| |
| case R.id.menu_file_size: |
| setDisplayFileSize(!LocalPreferences.getDisplayFileSize(this)); |
| return true; |
| |
| case R.id.menu_settings: |
| Metrics.logUserAction(this, Metrics.USER_ACTION_SETTINGS); |
| |
| final RootInfo root = getCurrentRoot(); |
| final Intent intent = new Intent(DocumentsContract.ACTION_DOCUMENT_ROOT_SETTINGS); |
| intent.setDataAndType(root.getUri(), DocumentsContract.Root.MIME_TYPE_ITEM); |
| startActivity(intent); |
| return true; |
| |
| default: |
| return super.onOptionsItemSelected(item); |
| } |
| } |
| |
| final @Nullable DirectoryFragment getDirectoryFragment() { |
| return DirectoryFragment.get(getFragmentManager()); |
| } |
| |
| void showCreateDirectoryDialog() { |
| Metrics.logUserAction(this, Metrics.USER_ACTION_CREATE_DIR); |
| |
| CreateDirectoryFragment.show(getFragmentManager()); |
| } |
| |
| void onDirectoryCreated(DocumentInfo doc) { |
| // By default we do nothing, just let the new directory appear. |
| // DocumentsActivity auto-opens directories after creating them |
| // As that is more attuned to the "picker" use cases it supports. |
| } |
| |
| /** |
| * Returns true if a directory can be created in the current location. |
| * @return |
| */ |
| boolean canCreateDirectory() { |
| final RootInfo root = getCurrentRoot(); |
| final DocumentInfo cwd = getCurrentDirectory(); |
| return cwd != null |
| && cwd.isCreateSupported() |
| && !mSearchManager.isSearching() |
| && !root.isRecents() |
| && !root.isDownloads(); |
| } |
| |
| void openContainerDocument(DocumentInfo doc) { |
| assert(doc.isContainer()); |
| |
| notifyDirectoryNavigated(doc.derivedUri); |
| |
| mState.pushDocument(doc); |
| // Show an opening animation only if pressing "back" would get us back to the |
| // previous directory. Especially after opening a root document, pressing |
| // back, wouldn't go to the previous root, but close the activity. |
| final int anim = (mState.hasLocationChanged() && mState.stack.size() > 1) |
| ? AnimationView.ANIM_ENTER : AnimationView.ANIM_NONE; |
| refreshCurrentRootAndDirectory(anim); |
| } |
| |
| /** |
| * Refreshes the content of the director and the menu/action bar. |
| * The current directory name and selection will get updated. |
| * @param anim |
| */ |
| @Override |
| public final void refreshCurrentRootAndDirectory(int anim) { |
| mSearchManager.cancelSearch(); |
| |
| refreshDirectory(anim); |
| |
| final RootsFragment roots = RootsFragment.get(getFragmentManager()); |
| if (roots != null) { |
| roots.onCurrentRootChanged(); |
| } |
| |
| mNavigator.update(); |
| // Causes talkback to announce the activity's new title |
| if (mState.stack.isRecents()) { |
| setTitle(mRoots.getRecentsRoot().title); |
| } else { |
| setTitle(mState.stack.getTitle()); |
| } |
| invalidateOptionsMenu(); |
| } |
| |
| final void loadRoot(final Uri uri) { |
| new LoadRootTask(this, uri).executeOnExecutor( |
| ProviderExecutor.forAuthority(uri.getAuthority())); |
| } |
| |
| /** |
| * Called when search results changed. |
| * Refreshes the content of the directory. It doesn't refresh elements on the action bar. |
| * e.g. The current directory name displayed on the action bar won't get updated. |
| */ |
| @Override |
| public void onSearchChanged(@Nullable String query) { |
| // We should not get here if root is not searchable |
| assert(canSearchRoot()); |
| reloadSearch(query); |
| } |
| |
| @Override |
| public void onSearchFinished() { |
| // Restores menu icons state |
| invalidateOptionsMenu(); |
| } |
| |
| private void reloadSearch(String query) { |
| FragmentManager fm = getFragmentManager(); |
| RootInfo root = getCurrentRoot(); |
| DocumentInfo cwd = getCurrentDirectory(); |
| |
| DirectoryFragment.reloadSearch(fm, root, cwd, query); |
| } |
| |
| final List<String> getExcludedAuthorities() { |
| List<String> authorities = new ArrayList<>(); |
| if (getIntent().getBooleanExtra(DocumentsContract.EXTRA_EXCLUDE_SELF, false)) { |
| // Exclude roots provided by the calling package. |
| String packageName = getCallingPackageMaybeExtra(); |
| try { |
| PackageInfo pkgInfo = getPackageManager().getPackageInfo(packageName, |
| PackageManager.GET_PROVIDERS); |
| for (ProviderInfo provider: pkgInfo.providers) { |
| authorities.add(provider.authority); |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.e(mTag, "Calling package name does not resolve: " + packageName); |
| } |
| } |
| return authorities; |
| } |
| |
| boolean canSearchRoot() { |
| final RootInfo root = getCurrentRoot(); |
| return (root.flags & Root.FLAG_SUPPORTS_SEARCH) != 0; |
| } |
| |
| final String getCallingPackageMaybeExtra() { |
| String callingPackage = getCallingPackage(); |
| // System apps can set the calling package name using an extra. |
| try { |
| ApplicationInfo info = getPackageManager().getApplicationInfo(callingPackage, 0); |
| if (info.isSystemApp() || info.isUpdatedSystemApp()) { |
| final String extra = getIntent().getStringExtra(DocumentsContract.EXTRA_PACKAGE_NAME); |
| if (extra != null) { |
| callingPackage = extra; |
| } |
| } |
| } finally { |
| return callingPackage; |
| } |
| } |
| |
| public static BaseActivity get(Fragment fragment) { |
| return (BaseActivity) fragment.getActivity(); |
| } |
| |
| public State getDisplayState() { |
| return mState; |
| } |
| |
| /* |
| * Get the default directory to be presented after starting the activity. |
| * Method can be overridden if the change of the behavior of the the child activity is needed. |
| */ |
| public Uri getDefaultRoot() { |
| return Shared.shouldShowDocumentsRoot(this, getIntent()) |
| ? DocumentsContract.buildHomeUri() |
| : DocumentsContract.buildRootUri( |
| "com.android.providers.downloads.documents", "downloads"); |
| } |
| |
| /** |
| * Set internal storage visible based on explicit user action. |
| */ |
| void setDisplayAdvancedDevices(boolean display) { |
| Metrics.logUserAction(this, |
| display ? Metrics.USER_ACTION_SHOW_ADVANCED : Metrics.USER_ACTION_HIDE_ADVANCED); |
| |
| LocalPreferences.setShowDeviceRoot(this, mState.action, display); |
| mState.showAdvanced = display; |
| RootsFragment.get(getFragmentManager()).onDisplayStateChanged(); |
| invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Set file size visible based on explicit user action. |
| */ |
| void setDisplayFileSize(boolean display) { |
| Metrics.logUserAction(this, |
| display ? Metrics.USER_ACTION_SHOW_SIZE : Metrics.USER_ACTION_HIDE_SIZE); |
| |
| LocalPreferences.setDisplayFileSize(this, display); |
| mState.showSize = display; |
| DirectoryFragment dir = getDirectoryFragment(); |
| if (dir != null) { |
| dir.onDisplayStateChanged(); |
| } |
| invalidateOptionsMenu(); |
| } |
| |
| /** |
| * Set state sort order based on explicit user action. |
| */ |
| void setUserSortOrder(int sortOrder) { |
| switch(sortOrder) { |
| case State.SORT_ORDER_DISPLAY_NAME: |
| Metrics.logUserAction(this, Metrics.USER_ACTION_SORT_NAME); |
| break; |
| case State.SORT_ORDER_LAST_MODIFIED: |
| Metrics.logUserAction(this, Metrics.USER_ACTION_SORT_DATE); |
| break; |
| case State.SORT_ORDER_SIZE: |
| Metrics.logUserAction(this, Metrics.USER_ACTION_SORT_SIZE); |
| break; |
| } |
| |
| mState.userSortOrder = sortOrder; |
| DirectoryFragment dir = getDirectoryFragment(); |
| if (dir != null) { |
| dir.onSortOrderChanged(); |
| } |
| } |
| |
| /** |
| * Set mode based on explicit user action. |
| */ |
| void setViewMode(@ViewMode int mode) { |
| if (mode == State.MODE_GRID) { |
| Metrics.logUserAction(this, Metrics.USER_ACTION_GRID); |
| } else if (mode == State.MODE_LIST) { |
| Metrics.logUserAction(this, Metrics.USER_ACTION_LIST); |
| } |
| |
| LocalPreferences.setViewMode(this, getCurrentRoot(), mode); |
| mState.derivedMode = mode; |
| |
| // view icon needs to be updated, but we *could* do it |
| // in onOptionsItemSelected, and not do the full invalidation |
| // But! That's a larger refactoring we'll save for another day. |
| invalidateOptionsMenu(); |
| DirectoryFragment dir = getDirectoryFragment(); |
| if (dir != null) { |
| dir.onViewModeChanged(); |
| } |
| } |
| |
| public void setPending(boolean pending) { |
| final SaveFragment save = SaveFragment.get(getFragmentManager()); |
| if (save != null) { |
| save.setPending(pending); |
| } |
| } |
| |
| @Override |
| protected void onSaveInstanceState(Bundle state) { |
| super.onSaveInstanceState(state); |
| state.putParcelable(Shared.EXTRA_STATE, mState); |
| mSearchManager.onSaveInstanceState(state); |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Bundle state) { |
| super.onRestoreInstanceState(state); |
| } |
| |
| @Override |
| public boolean isSearchExpanded() { |
| return mSearchManager.isExpanded(); |
| } |
| |
| @Override |
| public RootInfo getCurrentRoot() { |
| if (mState.stack.root != null) { |
| return mState.stack.root; |
| } else { |
| return mRoots.getRecentsRoot(); |
| } |
| } |
| |
| public DocumentInfo getCurrentDirectory() { |
| return mState.stack.peek(); |
| } |
| |
| public Executor getExecutorForCurrentDirectory() { |
| final DocumentInfo cwd = getCurrentDirectory(); |
| if (cwd != null && cwd.authority != null) { |
| return ProviderExecutor.forAuthority(cwd.authority); |
| } else { |
| return AsyncTask.THREAD_POOL_EXECUTOR; |
| } |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // While action bar is expanded, the state stack UI is hidden. |
| if (mSearchManager.cancelSearch()) { |
| return; |
| } |
| |
| DirectoryFragment dir = getDirectoryFragment(); |
| if (dir != null && dir.onBackPressed()) { |
| return; |
| } |
| |
| if (!mState.hasLocationChanged()) { |
| super.onBackPressed(); |
| return; |
| } |
| |
| if (onBeforePopDir() || popDir()) { |
| return; |
| } |
| |
| super.onBackPressed(); |
| } |
| |
| boolean onBeforePopDir() { |
| // Files app overrides this with some fancy logic. |
| return false; |
| } |
| |
| public void onStackPicked(DocumentStack stack) { |
| try { |
| // Update the restored stack to ensure we have freshest data |
| stack.updateDocuments(getContentResolver()); |
| mState.setStack(stack); |
| refreshCurrentRootAndDirectory(AnimationView.ANIM_SIDE); |
| |
| } catch (FileNotFoundException e) { |
| Log.w(mTag, "Failed to restore stack: " + e); |
| } |
| } |
| |
| /** |
| * Declare a global key handler to route key events when there isn't a specific focus view. This |
| * covers the scenario where a user opens DocumentsUI and just starts typing. |
| * |
| * @param keyCode |
| * @param event |
| * @return |
| */ |
| @CallSuper |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (Events.isNavigationKeyCode(keyCode)) { |
| // Forward all unclaimed navigation keystrokes to the DirectoryFragment. This causes any |
| // stray navigation keystrokes focus the content pane, which is probably what the user |
| // is trying to do. |
| DirectoryFragment df = DirectoryFragment.get(getFragmentManager()); |
| if (df != null) { |
| df.requestFocus(); |
| return true; |
| } |
| } else if (keyCode == KeyEvent.KEYCODE_TAB) { |
| // Tab toggles focus on the navigation drawer. |
| toggleNavDrawerFocus(); |
| return true; |
| } else if (keyCode == KeyEvent.KEYCODE_DEL) { |
| popDir(); |
| return true; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| public void addEventListener(EventListener listener) { |
| mEventListeners.add(listener); |
| } |
| |
| public void removeEventListener(EventListener listener) { |
| mEventListeners.remove(listener); |
| } |
| |
| public void notifyDirectoryLoaded(Uri uri) { |
| for (EventListener listener : mEventListeners) { |
| listener.onDirectoryLoaded(uri); |
| } |
| } |
| |
| void notifyDirectoryNavigated(Uri uri) { |
| for (EventListener listener : mEventListeners) { |
| listener.onDirectoryNavigated(uri); |
| } |
| } |
| |
| /** |
| * Toggles focus between the navigation drawer and the directory listing. If the drawer isn't |
| * locked, open/close it as appropriate. |
| */ |
| void toggleNavDrawerFocus() { |
| if (mNavDrawerHasFocus) { |
| mDrawer.setOpen(false); |
| DirectoryFragment df = DirectoryFragment.get(getFragmentManager()); |
| if (df != null) { |
| df.requestFocus(); |
| } |
| } else { |
| mDrawer.setOpen(true); |
| RootsFragment rf = RootsFragment.get(getFragmentManager()); |
| if (rf != null) { |
| rf.requestFocus(); |
| } |
| } |
| mNavDrawerHasFocus = !mNavDrawerHasFocus; |
| } |
| |
| DocumentInfo getRootDocumentBlocking(RootInfo root) { |
| try { |
| final Uri uri = DocumentsContract.buildDocumentUri( |
| root.authority, root.documentId); |
| return DocumentInfo.fromUri(getContentResolver(), uri); |
| } catch (FileNotFoundException e) { |
| Log.w(mTag, "Failed to find root", e); |
| return null; |
| } |
| } |
| |
| /** |
| * Pops the top entry off the directory stack, and returns the user to the previous directory. |
| * If the directory stack only contains one item, this method does nothing. |
| * |
| * @return Whether the stack was popped. |
| */ |
| private boolean popDir() { |
| if (mState.stack.size() > 1) { |
| mState.stack.pop(); |
| refreshCurrentRootAndDirectory(AnimationView.ANIM_LEAVE); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Closes the activity when it's idle. |
| */ |
| private void addListenerForLaunchCompletion() { |
| addEventListener(new EventListener() { |
| @Override |
| public void onDirectoryNavigated(Uri uri) { |
| } |
| |
| @Override |
| public void onDirectoryLoaded(Uri uri) { |
| removeEventListener(this); |
| getMainLooper().getQueue().addIdleHandler(new IdleHandler() { |
| @Override |
| public boolean queueIdle() { |
| // If startup benchmark is requested by a whitelisted testing package, then |
| // close the activity once idle, and notify the testing activity. |
| if (getIntent().getBooleanExtra(EXTRA_BENCHMARK, false) && |
| BENCHMARK_TESTING_PACKAGE.equals(getCallingPackage())) { |
| setResult(RESULT_OK); |
| finish(); |
| } |
| |
| Metrics.logStartupMs( |
| BaseActivity.this, (int) (new Date().getTime() - mStartTime)); |
| |
| // Remove the idle handler. |
| return false; |
| } |
| }); |
| new Handler().post(new Runnable() { |
| @Override public void run() { |
| } |
| }); |
| } |
| }); |
| } |
| |
| private static final class PickRootTask extends PairedTask<BaseActivity, Void, DocumentInfo> { |
| private RootInfo mRoot; |
| |
| public PickRootTask(BaseActivity activity, RootInfo root) { |
| super(activity); |
| mRoot = root; |
| } |
| |
| @Override |
| protected DocumentInfo run(Void... params) { |
| return mOwner.getRootDocumentBlocking(mRoot); |
| } |
| |
| @Override |
| protected void finish(DocumentInfo result) { |
| if (result != null) { |
| mOwner.openContainerDocument(result); |
| } |
| } |
| } |
| |
| private static final class HandleRootsChangedTask |
| extends PairedTask<BaseActivity, RootInfo, RootInfo> { |
| RootInfo mCurrentRoot; |
| DocumentInfo mDefaultRootDocument; |
| |
| public HandleRootsChangedTask(BaseActivity activity) { |
| super(activity); |
| } |
| |
| @Override |
| protected RootInfo run(RootInfo... roots) { |
| assert(roots.length == 1); |
| mCurrentRoot = roots[0]; |
| final Collection<RootInfo> cachedRoots = mOwner.mRoots.getRootsBlocking(); |
| for (final RootInfo root : cachedRoots) { |
| if (root.getUri().equals(mCurrentRoot.getUri())) { |
| // We don't need to change the current root as the current root was not removed. |
| return null; |
| } |
| } |
| |
| // Choose the default root. |
| final RootInfo defaultRoot = mOwner.mRoots.getDefaultRootBlocking(mOwner.mState); |
| assert(defaultRoot != null); |
| if (!defaultRoot.isRecents()) { |
| mDefaultRootDocument = mOwner.getRootDocumentBlocking(defaultRoot); |
| } |
| return defaultRoot; |
| } |
| |
| @Override |
| protected void finish(RootInfo defaultRoot) { |
| if (defaultRoot == null) { |
| return; |
| } |
| |
| // If the activity has been launched for the specific root and it is removed, finish the |
| // activity. |
| final Uri uri = mOwner.getIntent().getData(); |
| if (uri != null && uri.equals(mCurrentRoot.getUri())) { |
| mOwner.finish(); |
| return; |
| } |
| |
| // Clear entire backstack and start in new root. |
| mOwner.mState.onRootChanged(defaultRoot); |
| mOwner.mSearchManager.update(defaultRoot); |
| |
| if (defaultRoot.isRecents()) { |
| mOwner.refreshCurrentRootAndDirectory(AnimationView.ANIM_NONE); |
| } else { |
| mOwner.openContainerDocument(mDefaultRootDocument); |
| } |
| } |
| } |
| } |
