1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.multiclientinputmethod; 18 19 import android.content.Context; 20 import android.hardware.display.DisplayManager; 21 import android.inputmethodservice.MultiClientInputMethodServiceDelegate; 22 import android.os.IBinder; 23 import android.util.SparseArray; 24 import android.view.Display; 25 26 final class SoftInputWindowManager { 27 private final Context mContext; 28 private final MultiClientInputMethodServiceDelegate mDelegate; 29 private final SparseArray<SoftInputWindow> mSoftInputWindows = new SparseArray<>(); 30 31 SoftInputWindowManager(Context context, MultiClientInputMethodServiceDelegate delegate) { 32 mContext = context; 33 mDelegate = delegate; 34 } 35 36 SoftInputWindow getOrCreateSoftInputWindow(int displayId) { 37 final SoftInputWindow existingWindow = mSoftInputWindows.get(displayId); 38 if (existingWindow != null) { 39 return existingWindow; 40 } 41 42 final Display display = 43 mContext.getSystemService(DisplayManager.class).getDisplay(displayId); 44 if (display == null) { 45 return null; 46 } 47 final IBinder windowToken = mDelegate.createInputMethodWindowToken(displayId); 48 if (windowToken == null) { 49 return null; 50 } 51 52 final Context displayContext = mContext.createDisplayContext(display); 53 final SoftInputWindow newWindow = new SoftInputWindow(displayContext, windowToken); 54 mSoftInputWindows.put(displayId, newWindow); 55 return newWindow; 56 } 57 58 SoftInputWindow getSoftInputWindow(int displayId) { 59 return mSoftInputWindows.get(displayId); 60 } 61 } 62
