| /* |
| * 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.base.Shared.DEBUG; |
| import static com.android.documentsui.base.Shared.EXTRA_BENCHMARK; |
| import static com.android.documentsui.base.State.MODE_GRID; |
| |
| import android.app.Activity; |
| import android.app.Fragment; |
| import android.app.FragmentManager; |
| import android.content.Intent; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| 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.support.annotation.VisibleForTesting; |
| import android.util.Log; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.View; |
| |
| import com.android.documentsui.AbstractActionHandler.CommonAddons; |
| import com.android.documentsui.Injector.Injected; |
| import com.android.documentsui.NavigationViewManager.Breadcrumb; |
| import com.android.documentsui.base.DocumentInfo; |
| import com.android.documentsui.base.RootInfo; |
| import com.android.documentsui.base.Shared; |
| import com.android.documentsui.base.State; |
| import com.android.documentsui.base.State.ViewMode; |
| import com.android.documentsui.dirlist.AnimationView; |
| import com.android.documentsui.dirlist.DirectoryFragment; |
| import com.android.documentsui.prefs.LocalPreferences; |
| import com.android.documentsui.queries.DebugCommandProcessor; |
| import com.android.documentsui.queries.SearchViewManager; |
| import com.android.documentsui.queries.SearchViewManager.SearchManagerListener; |
| import com.android.documentsui.roots.GetRootDocumentTask; |
| import com.android.documentsui.roots.RootsCache; |
| import com.android.documentsui.selection.Selection; |
| import com.android.documentsui.sidebar.RootsFragment; |
| import com.android.documentsui.sorting.SortController; |
| import com.android.documentsui.sorting.SortModel; |
| |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.concurrent.Executor; |
| |
| public abstract class BaseActivity |
| extends Activity implements CommonAddons, NavigationViewManager.Environment { |
| |
| private static final String BENCHMARK_TESTING_PACKAGE = "com.android.documentsui.appperftests"; |
| |
| protected SearchViewManager mSearchManager; |
| protected State mState; |
| |
| @Injected |
| protected Injector<?> mInjector; |
| |
| protected @Nullable RetainedState mRetainedState; |
| protected RootsCache mRoots; |
| protected DocumentsAccess mDocs; |
| protected DrawerController mDrawer; |
| |
| protected NavigationViewManager mNavigator; |
| protected SortController mSortController; |
| |
| private final List<EventListener> mEventListeners = new ArrayList<>(); |
| private final String mTag; |
| |
| @LayoutRes |
| private int mLayoutId; |
| |
| private RootsMonitor<BaseActivity> mRootsMonitor; |
| |
| private long mStartTime; |
| |
| public BaseActivity(@LayoutRes int layoutId, String tag) { |
| mLayoutId = layoutId; |
| mTag = tag; |
| } |
| |
| protected abstract void onTaskFinished(Uri... uris); |
| protected abstract void refreshDirectory(int anim); |
| /** Allows sub-classes to include information in a newly created State instance. */ |
| protected abstract void includeState(State initialState); |
| protected abstract void onDirectoryCreated(DocumentInfo doc); |
| |
| public abstract Injector<?> getInjector(); |
| |
| @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); |
| |
| mInjector = getInjector(); |
| mState = getState(icicle); |
| mDrawer = DrawerController.create(this, mInjector.config); |
| Metrics.logActivityLaunch(this, mState, intent); |
| |
| // we're really interested in retainining state in our very complex |
| // DirectoryFragment. So we do a little code yoga to extend |
| // support to that fragment. |
| mRetainedState = (RetainedState) getLastNonConfigurationInstance(); |
| mRoots = DocumentsApplication.getRootsCache(this); |
| mDocs = DocumentsAccess.create(this); |
| |
| DocumentsToolbar toolbar = (DocumentsToolbar) findViewById(R.id.toolbar); |
| setActionBar(toolbar); |
| |
| Breadcrumb breadcrumb = |
| Shared.findView(this, R.id.dropdown_breadcrumb, R.id.horizontal_breadcrumb); |
| assert(breadcrumb != null); |
| |
| mNavigator = new NavigationViewManager(mDrawer, toolbar, mState, this, breadcrumb); |
| SearchManagerListener searchListener = new SearchManagerListener() { |
| /** |
| * 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(); |
| } |
| |
| @Override |
| public void onSearchViewChanged(boolean opened) { |
| mNavigator.update(); |
| } |
| }; |
| |
| // "Commands" are meta input for controlling system behavior. |
| // We piggy back on search input as it is the only text input |
| // area in the app. But the functionality is independent |
| // of "regular" search query processing. |
| DebugCommandProcessor dbgCommands = new DebugCommandProcessor(); |
| dbgCommands.add(new DebugCommandProcessor.DumpRootsCacheHandler(this)); |
| mSearchManager = new SearchViewManager(searchListener, dbgCommands, icicle); |
| mSortController = SortController.create(this, mState.derivedMode, mState.sortModel); |
| |
| // Base classes must update result in their onCreate. |
| setResult(Activity.RESULT_CANCELED); |
| } |
| |
| @Override |
| protected void onPostCreate(Bundle savedInstanceState) { |
| super.onPostCreate(savedInstanceState); |
| |
| mRootsMonitor = new RootsMonitor<>( |
| this, |
| mInjector.actions, |
| mRoots, |
| mDocs, |
| mState, |
| mSearchManager); |
| mRootsMonitor.start(); |
| } |
| |
| @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()); |
| return true; |
| } |
| |
| @Override |
| protected void onDestroy() { |
| mRootsMonitor.stop(); |
| 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.sortModel = SortModel.createModel(); |
| state.localOnly = intent.getBooleanExtra(Intent.EXTRA_LOCAL_ONLY, false); |
| state.initAcceptMimes(intent); |
| state.excludedAuthorities = getExcludedAuthorities(); |
| |
| includeState(state); |
| |
| state.showAdvanced = Shared.mustShowDeviceRoot(intent) |
| || mInjector.prefs.getShowDeviceRoot(); |
| |
| // Only show the toggle if advanced isn't forced enabled. |
| state.showDeviceStorageOption = !Shared.mustShowDeviceRoot(intent); |
| |
| if (DEBUG) Log.d(mTag, "Created new state object: " + state); |
| |
| return state; |
| } |
| |
| @Override |
| public void setRootsDrawerOpen(boolean open) { |
| mNavigator.revealRootsDrawer(open); |
| } |
| |
| @Override |
| public 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); |
| mSortController.onViewModeChanged(mState.derivedMode); |
| |
| // Set summary header's visibility. Only recents and downloads root may have summary in |
| // their docs. |
| mState.sortModel.setDimensionVisibility( |
| SortModel.SORT_DIMENSION_ID_SUMMARY, |
| root.isRecents() || root.isDownloads() ? View.VISIBLE : View.INVISIBLE); |
| |
| // Clear entire backstack and start in new root |
| mState.stack.changeRoot(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 GetRootDocumentTask( |
| root, |
| this, |
| mInjector.actions::openContainerDocument) |
| .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_grid: |
| setViewMode(State.MODE_GRID); |
| return true; |
| |
| case R.id.menu_list: |
| setViewMode(State.MODE_LIST); |
| return true; |
| |
| case R.id.menu_advanced: |
| setDisplayAdvancedDevices(!mState.showAdvanced); |
| return true; |
| |
| default: |
| return super.onOptionsItemSelected(item); |
| } |
| } |
| |
| protected final @Nullable DirectoryFragment getDirectoryFragment() { |
| return DirectoryFragment.get(getFragmentManager()); |
| } |
| |
| protected void showCreateDirectoryDialog() { |
| Metrics.logUserAction(this, Metrics.USER_ACTION_CREATE_DIR); |
| |
| CreateDirectoryFragment.show(getFragmentManager()); |
| } |
| |
| /** |
| * Returns true if a directory can be created in the current location. |
| * @return |
| */ |
| protected boolean canCreateDirectory() { |
| final RootInfo root = getCurrentRoot(); |
| final DocumentInfo cwd = getCurrentDirectory(); |
| return cwd != null |
| && cwd.isCreateSupported() |
| && !mSearchManager.isSearching() |
| && !root.isRecents() |
| && !root.isDownloads(); |
| } |
| |
| // TODO: make navigator listen to state |
| @Override |
| public final void updateNavigator() { |
| mNavigator.update(); |
| } |
| |
| /** |
| * 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(); |
| } |
| |
| /** |
| * This is called when user hovers over a doc for enough time during a drag n' drop, to open a |
| * folder that accepts drop. We should only open a container that's not an archive. |
| */ |
| public void springOpenDirectory(DocumentInfo doc) { |
| } |
| |
| private void reloadSearch(String query) { |
| FragmentManager fm = getFragmentManager(); |
| RootInfo root = getCurrentRoot(); |
| DocumentInfo cwd = getCurrentDirectory(); |
| |
| DirectoryFragment.reloadSearch(fm, root, cwd, query); |
| } |
| |
| private 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 = Shared.getCallingPackageName(this); |
| 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; |
| } |
| |
| public static BaseActivity get(Fragment fragment) { |
| return (BaseActivity) fragment.getActivity(); |
| } |
| |
| public State getDisplayState() { |
| return mState; |
| } |
| |
| public DragShadowBuilder getShadowBuilder() { |
| throw new UnsupportedOperationException( |
| "Drag and drop not supported, can't get shadow builder"); |
| } |
| |
| /** |
| * 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); |
| |
| mInjector.prefs.setShowDeviceRoot(display); |
| mState.showAdvanced = display; |
| RootsFragment.get(getFragmentManager()).onDisplayStateChanged(); |
| invalidateOptionsMenu(); |
| } |
| |
| /** |
| * 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(); |
| } |
| |
| mSortController.onViewModeChanged(mode); |
| } |
| |
| public void setPending(boolean pending) { |
| // TODO: Isolate this behavior to PickActivity. |
| } |
| |
| @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); |
| } |
| |
| /** |
| * Delegate ths call to the current fragment so it can save selection. |
| * Feel free to expand on this with other useful state. |
| */ |
| @Override |
| public RetainedState onRetainNonConfigurationInstance() { |
| RetainedState retained = new RetainedState(); |
| DirectoryFragment fragment = DirectoryFragment.get(getFragmentManager()); |
| if (fragment != null) { |
| fragment.retainState(retained); |
| } |
| return retained; |
| } |
| |
| public @Nullable RetainedState getRetainedState() { |
| return mRetainedState; |
| } |
| |
| @Override |
| public boolean isSearchExpanded() { |
| return mSearchManager.isExpanded(); |
| } |
| |
| @Override |
| public RootInfo getCurrentRoot() { |
| RootInfo root = mState.stack.getRoot(); |
| if (root != null) { |
| return root; |
| } else { |
| return mRoots.getRecentsRoot(); |
| } |
| } |
| |
| @Override |
| 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 (popDir()) { |
| return; |
| } |
| |
| super.onBackPressed(); |
| } |
| |
| @VisibleForTesting |
| public void addEventListener(EventListener listener) { |
| mEventListeners.add(listener); |
| } |
| |
| @VisibleForTesting |
| public void removeEventListener(EventListener listener) { |
| mEventListeners.remove(listener); |
| } |
| |
| @VisibleForTesting |
| public void notifyDirectoryLoaded(Uri uri) { |
| for (EventListener listener : mEventListeners) { |
| listener.onDirectoryLoaded(uri); |
| } |
| } |
| |
| @VisibleForTesting |
| @Override |
| public void notifyDirectoryNavigated(Uri uri) { |
| for (EventListener listener : mEventListeners) { |
| listener.onDirectoryNavigated(uri); |
| } |
| } |
| |
| /** |
| * 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. |
| */ |
| protected boolean popDir() { |
| if (mState.stack.size() > 1) { |
| mState.stack.pop(); |
| refreshCurrentRootAndDirectory(AnimationView.ANIM_LEAVE); |
| return true; |
| } |
| return false; |
| } |
| |
| protected boolean focusSidebar() { |
| RootsFragment rf = RootsFragment.get(getFragmentManager()); |
| assert (rf != null); |
| return rf.requestFocus(); |
| } |
| |
| /** |
| * 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; |
| } |
| }); |
| } |
| }); |
| } |
| |
| public static final class RetainedState { |
| public @Nullable Selection selection; |
| |
| public boolean hasSelection() { |
| return selection != null; |
| } |
| } |
| |
| @VisibleForTesting |
| protected interface EventListener { |
| /** |
| * @param uri Uri navigated to. If recents, then null. |
| */ |
| void onDirectoryNavigated(@Nullable Uri uri); |
| |
| /** |
| * @param uri Uri of the loaded directory. If recents, then null. |
| */ |
| void onDirectoryLoaded(@Nullable Uri uri); |
| } |
| } |