| /* |
| * Copyright (C) 2016 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 java.lang.annotation.ElementType.FIELD; |
| import static java.lang.annotation.RetentionPolicy.SOURCE; |
| |
| import android.support.annotation.Nullable; |
| import android.support.v7.widget.RecyclerView; |
| import android.view.MenuItem; |
| |
| import com.android.documentsui.MenuManager.SelectionDetails; |
| import com.android.documentsui.base.DebugHelper; |
| import com.android.documentsui.base.EventHandler; |
| import com.android.documentsui.base.Features; |
| import com.android.documentsui.base.Lookup; |
| import com.android.documentsui.base.RootInfo; |
| import com.android.documentsui.dirlist.DocumentsAdapter; |
| import com.android.documentsui.prefs.ScopedPreferences; |
| import com.android.documentsui.queries.SearchViewManager; |
| import com.android.documentsui.selection.SelectionManager; |
| import com.android.documentsui.selection.SelectionManager.SelectionPredicate; |
| import com.android.documentsui.ui.DialogController; |
| import com.android.documentsui.ui.MessageBuilder; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.Target; |
| import java.util.Collection; |
| import java.util.function.Consumer; |
| |
| /** |
| * Provides access to runtime dependencies. |
| */ |
| public class Injector<T extends ActionHandler> { |
| |
| public final Features features; |
| public final ActivityConfig config; |
| public final ScopedPreferences prefs; |
| public final MessageBuilder messages; |
| public final Lookup<String, String> fileTypeLookup; |
| public final Consumer<Collection<RootInfo>> shortcutsUpdater; |
| |
| public MenuManager menuManager; |
| public DialogController dialogs; |
| public SearchViewManager searchManager; |
| |
| public final DebugHelper debugHelper; |
| |
| @ContentScoped |
| public ActionModeController actionModeController; |
| |
| @ContentScoped |
| public T actions; |
| |
| @ContentScoped |
| public FocusManager focusManager; |
| |
| @ContentScoped |
| public SelectionManager selectionMgr; |
| |
| private final Model mModel; |
| |
| // must be initialized before calling super.onCreate because prefs |
| // are used in State initialization. |
| public Injector( |
| Features features, |
| ActivityConfig config, |
| ScopedPreferences prefs, |
| MessageBuilder messages, |
| DialogController dialogs, |
| Lookup<String, String> fileTypeLookup, |
| Consumer<Collection<RootInfo>> shortcutsUpdater) { |
| this(features, config, prefs, messages, dialogs, fileTypeLookup, |
| shortcutsUpdater, new Model(features)); |
| } |
| |
| @VisibleForTesting |
| public Injector( |
| Features features, |
| ActivityConfig config, |
| ScopedPreferences prefs, |
| MessageBuilder messages, |
| DialogController dialogs, |
| Lookup<String, String> fileTypeLookup, |
| Consumer<Collection<RootInfo>> shortcutsUpdater, |
| Model model) { |
| |
| this.features = features; |
| this.config = config; |
| this.prefs = prefs; |
| this.messages = messages; |
| this.dialogs = dialogs; |
| this.fileTypeLookup = fileTypeLookup; |
| this.shortcutsUpdater = shortcutsUpdater; |
| this.mModel = model; |
| this.debugHelper = new DebugHelper(this); |
| } |
| |
| public Model getModel() { |
| return mModel; |
| } |
| |
| public FocusManager getFocusManager(RecyclerView view, Model model) { |
| assert (focusManager != null); |
| return focusManager.reset(view, model); |
| } |
| |
| public SelectionManager getSelectionManager( |
| DocumentsAdapter adapter, SelectionPredicate canSetState) { |
| return selectionMgr.reset(adapter, canSetState); |
| } |
| |
| public final ActionModeController getActionModeController( |
| SelectionDetails selectionDetails, EventHandler<MenuItem> menuItemClicker) { |
| return actionModeController.reset(selectionDetails, menuItemClicker); |
| } |
| |
| /** |
| * Obtains action handler and resets it if necessary. |
| * @param reloadLock the lock held by {@link com.android.documentsui.selection.BandController} |
| * to prevent loader from updating result during band selection. May be |
| * {@code null} if called from |
| * {@link com.android.documentsui.sidebar.RootsFragment}. |
| * @return the action handler |
| */ |
| public T getActionHandler(@Nullable DirectoryReloadLock reloadLock) { |
| |
| // provide our friend, RootsFragment, early access to this special feature! |
| if (reloadLock == null) { |
| return actions; |
| } |
| |
| return actions.reset(reloadLock); |
| } |
| |
| /** |
| * Decorates a field that that is injected. |
| */ |
| @Retention(SOURCE) |
| @Target(FIELD) |
| public @interface Injected { |
| |
| } |
| |
| /** |
| * Decorates a field that holds an object that must be reset in the current content scope |
| * (i.e. DirectoryFragment). Fields decorated with this must have an associated |
| * accessor on Injector that, when call, reset the object for the calling context. |
| */ |
| @Retention(SOURCE) |
| @Target(FIELD) |
| public @interface ContentScoped { |
| |
| } |
| } |