1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.fragments; 16 17 import android.app.Fragment; 18 import android.util.Log; 19 import android.view.View; 20 21 import com.android.systemui.plugins.FragmentBase; 22 import com.android.systemui.statusbar.policy.ExtensionController.Extension; 23 24 import java.util.function.Consumer; 25 26 /** 27 * Wires up an Extension to a Fragment tag/id so that it always contains the class 28 * selected by the extension. 29 */ 30 public class ExtensionFragmentListener<T extends FragmentBase> implements Consumer<T> { 31 32 private static final String TAG = "ExtensionFragmentListener"; 33 34 private final FragmentHostManager mFragmentHostManager; 35 private final String mTag; 36 private final Extension<T> mExtension; 37 private final int mId; 38 private String mOldClass; 39 ExtensionFragmentListener( FragmentService fragmentService, View view, String tag, int id, Extension<T> extension)40 private ExtensionFragmentListener( 41 FragmentService fragmentService, 42 View view, 43 String tag, 44 int id, 45 Extension<T> extension) { 46 mTag = tag; 47 mFragmentHostManager = fragmentService.getFragmentHostManager(view); 48 mExtension = extension; 49 mId = id; 50 mFragmentHostManager.getFragmentManager().beginTransaction() 51 .replace(id, (Fragment) mExtension.get(), mTag) 52 .commit(); 53 mExtension.clearItem(false); 54 } 55 56 @Override accept(T extension)57 public void accept(T extension) { 58 try { 59 Fragment.class.cast(extension); 60 mFragmentHostManager.getExtensionManager().setCurrentExtension(mId, mTag, 61 mOldClass, extension.getClass().getName(), mExtension.getContext()); 62 mOldClass = extension.getClass().getName(); 63 } catch (ClassCastException e) { 64 Log.e(TAG, extension.getClass().getName() + " must be a Fragment", e); 65 } 66 mExtension.clearItem(true); 67 } 68 attachExtensonToFragment( FragmentService fragmentService, View view, String tag, int id, Extension<T> extension)69 public static <T> void attachExtensonToFragment( 70 FragmentService fragmentService, 71 View view, 72 String tag, 73 int id, 74 Extension<T> extension) { 75 extension.addCallback( 76 new ExtensionFragmentListener(fragmentService, view, tag, id, extension)); 77 } 78 } 79