1 /* <lambda>null2 * Copyright (C) 2024 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.systemui.inputmethod.domain.interactor 18 19 import com.android.systemui.dagger.SysUISingleton 20 import com.android.systemui.inputmethod.data.repository.InputMethodRepository 21 import javax.inject.Inject 22 import kotlinx.coroutines.flow.count 23 import kotlinx.coroutines.flow.filter 24 import kotlinx.coroutines.flow.take 25 26 /** Hosts application business logic related to input methods (e.g. software keyboard). */ 27 @SysUISingleton 28 class InputMethodInteractor 29 @Inject 30 constructor( 31 private val repository: InputMethodRepository, 32 ) { 33 /** 34 * Returns whether there are multiple enabled input methods to choose from for password input. 35 * 36 * Method adapted from `com.android.inputmethod.latin.Utils`. 37 */ 38 suspend fun hasMultipleEnabledImesOrSubtypes(userId: Int): Boolean { 39 // Count IMEs that either have no subtypes, or have at least one non-auxiliary subtype. 40 val matchingInputMethods = 41 repository 42 .enabledInputMethods(userId, fetchSubtypes = true) 43 .filter { ime -> ime.subtypes.isEmpty() || ime.subtypes.any { !it.isAuxiliary } } 44 .take(2) // Short-circuit if we find at least 2 matching IMEs. 45 46 return matchingInputMethods.count() > 1 || repository.selectedInputMethodSubtypes().size > 1 47 } 48 49 /** Shows the system's input method picker dialog. */ 50 suspend fun showInputMethodPicker(displayId: Int, showAuxiliarySubtypes: Boolean) { 51 repository.showInputMethodPicker(displayId, showAuxiliarySubtypes) 52 } 53 } 54