| /* |
| * Copyright 2023 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 androidx.compose.foundation.text2 |
| |
| import android.view.View |
| import android.view.inputmethod.EditorInfo |
| import android.view.inputmethod.InputConnection |
| import androidx.compose.runtime.Composable |
| import androidx.compose.runtime.remember |
| import androidx.compose.ui.platform.LocalView |
| import androidx.compose.ui.platform.PlatformTextInputMethodRequest |
| import androidx.compose.ui.platform.PlatformTextInputSession |
| import androidx.compose.ui.test.ExperimentalTestApi |
| import androidx.compose.ui.test.PlatformTextInputMethodTestOverride |
| import androidx.compose.ui.test.junit4.ComposeContentTestRule |
| import com.google.common.truth.Truth.assertWithMessage |
| import kotlinx.coroutines.awaitCancellation |
| |
| /** |
| * Helper class for testing integration of [BasicTextField2] with the platform IME. |
| */ |
| class InputMethodInterceptor(private val rule: ComposeContentTestRule) { |
| |
| private var currentRequest: PlatformTextInputMethodRequest? = null |
| private val editorInfo = EditorInfo() |
| private var inputConnection: InputConnection? = null |
| |
| fun assertSessionActive() { |
| rule.runOnIdle { |
| assertWithMessage("Expected a text input session to be active") |
| .that(currentRequest).isNotNull() |
| } |
| } |
| |
| fun assertNoSessionActive() { |
| rule.runOnIdle { |
| assertWithMessage("Expected no text input session to be active") |
| .that(currentRequest).isNull() |
| } |
| } |
| |
| fun withEditorInfo(block: EditorInfo.() -> Unit) { |
| rule.runOnIdle { |
| assertWithMessage("Expected a text input session to be active") |
| .that(currentRequest).isNotNull() |
| block(editorInfo) |
| } |
| } |
| |
| fun withInputConnection(block: InputConnection.() -> Unit) { |
| rule.runOnIdle { |
| val inputConnection = checkNotNull(inputConnection) { |
| "Tried to read inputConnection while no session was active" |
| } |
| block(inputConnection) |
| } |
| } |
| |
| /** |
| * Sets the content of the test, overriding the [PlatformTextInputSession] handler. |
| */ |
| @OptIn(ExperimentalTestApi::class) |
| fun setContent(content: @Composable () -> Unit) { |
| rule.setContent { |
| val view = LocalView.current |
| val sessionHandler = remember { SessionHandler(view) } |
| PlatformTextInputMethodTestOverride( |
| sessionHandler = sessionHandler, |
| content = content |
| ) |
| } |
| } |
| |
| private inner class SessionHandler(override val view: View) : PlatformTextInputSession { |
| override suspend fun startInputMethod(request: PlatformTextInputMethodRequest): Nothing { |
| currentRequest = request |
| try { |
| inputConnection = request.createInputConnection(editorInfo) |
| awaitCancellation() |
| } finally { |
| currentRequest = null |
| inputConnection = null |
| } |
| } |
| } |
| } |
