1 /* 2 * Copyright (C) 2014 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.android.inputmethod.latin.utils; 18 19 import android.content.Context; 20 import android.provider.Settings; 21 import android.view.inputmethod.InputMethodInfo; 22 import android.view.inputmethod.InputMethodManager; 23 24 /* 25 * A utility class for {@link InputMethodManager}. Unlike {@link RichInputMethodManager}, this 26 * class provides synchronous, non-cached access to {@link InputMethodManager}. The setup activity 27 * is a good example to use this class because {@link InputMethodManagerService} may not be aware of 28 * this IME immediately after this IME is installed. 29 */ 30 public final class UncachedInputMethodManagerUtils { 31 /** 32 * Check if the IME specified by the context is enabled. 33 * CAVEAT: This may cause a round trip IPC. 34 * 35 * @param context package context of the IME to be checked. 36 * @param imm the {@link InputMethodManager}. 37 * @return true if this IME is enabled. 38 */ isThisImeEnabled(final Context context, final InputMethodManager imm)39 public static boolean isThisImeEnabled(final Context context, 40 final InputMethodManager imm) { 41 final String packageName = context.getPackageName(); 42 for (final InputMethodInfo imi : imm.getEnabledInputMethodList()) { 43 if (packageName.equals(imi.getPackageName())) { 44 return true; 45 } 46 } 47 return false; 48 } 49 50 /** 51 * Check if the IME specified by the context is the current IME. 52 * CAVEAT: This may cause a round trip IPC. 53 * 54 * @param context package context of the IME to be checked. 55 * @param imm the {@link InputMethodManager}. 56 * @return true if this IME is the current IME. 57 */ isThisImeCurrent(final Context context, final InputMethodManager imm)58 public static boolean isThisImeCurrent(final Context context, 59 final InputMethodManager imm) { 60 final InputMethodInfo imi = getInputMethodInfoOf(context.getPackageName(), imm); 61 final String currentImeId = Settings.Secure.getString( 62 context.getContentResolver(), Settings.Secure.DEFAULT_INPUT_METHOD); 63 return imi != null && imi.getId().equals(currentImeId); 64 } 65 66 /** 67 * Get {@link InputMethodInfo} of the IME specified by the package name. 68 * CAVEAT: This may cause a round trip IPC. 69 * 70 * @param packageName package name of the IME. 71 * @param imm the {@link InputMethodManager}. 72 * @return the {@link InputMethodInfo} of the IME specified by the <code>packageName</code>, 73 * or null if not found. 74 */ getInputMethodInfoOf(final String packageName, final InputMethodManager imm)75 public static InputMethodInfo getInputMethodInfoOf(final String packageName, 76 final InputMethodManager imm) { 77 for (final InputMethodInfo imi : imm.getInputMethodList()) { 78 if (packageName.equals(imi.getPackageName())) { 79 return imi; 80 } 81 } 82 return null; 83 } 84 } 85