| /* |
| * Copyright 2020 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.textfield |
| |
| import androidx.compose.foundation.layout.width |
| import androidx.compose.foundation.text.BasicTextField |
| import androidx.compose.foundation.text.CoreTextField |
| import androidx.compose.runtime.Composable |
| import androidx.compose.runtime.mutableStateOf |
| import androidx.compose.runtime.remember |
| import androidx.compose.ui.Modifier |
| import androidx.compose.ui.focus.FocusRequester |
| import androidx.compose.ui.focus.focusRequester |
| import androidx.compose.ui.focus.isFocused |
| import androidx.compose.ui.focus.onFocusChanged |
| import androidx.compose.ui.platform.testTag |
| import androidx.compose.ui.test.junit4.createComposeRule |
| import androidx.compose.ui.test.onNodeWithTag |
| import androidx.compose.ui.test.performClick |
| import androidx.compose.ui.text.InternalTextApi |
| import androidx.compose.ui.text.input.TextFieldValue |
| import androidx.compose.ui.unit.dp |
| import androidx.test.ext.junit.runners.AndroidJUnit4 |
| import androidx.test.filters.LargeTest |
| import com.google.common.truth.Truth.assertThat |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| |
| @LargeTest |
| @OptIn(InternalTextApi::class) |
| @RunWith(AndroidJUnit4::class) |
| class TextFieldFocusTest { |
| @get:Rule |
| val rule = createComposeRule() |
| |
| @Composable |
| private fun TextFieldApp(dataList: List<FocusTestData>) { |
| for (data in dataList) { |
| val editor = remember { mutableStateOf("") } |
| BasicTextField( |
| value = editor.value, |
| modifier = Modifier |
| .focusRequester(data.focusRequester) |
| .onFocusChanged { data.focused = it.isFocused } |
| .width(10.dp), |
| onValueChange = { |
| editor.value = it |
| } |
| ) |
| } |
| } |
| |
| data class FocusTestData(val focusRequester: FocusRequester, var focused: Boolean = false) |
| |
| @Test |
| fun requestFocus() { |
| lateinit var testDataList: List<FocusTestData> |
| |
| rule.runOnUiThread { |
| rule.setContent { |
| testDataList = listOf( |
| FocusTestData(FocusRequester()), |
| FocusTestData(FocusRequester()), |
| FocusTestData(FocusRequester()) |
| ) |
| |
| TextFieldApp(testDataList) |
| } |
| } |
| |
| rule.runOnIdle { testDataList[0].focusRequester.requestFocus() } |
| |
| rule.runOnIdle { |
| assertThat(testDataList[0].focused).isTrue() |
| assertThat(testDataList[1].focused).isFalse() |
| assertThat(testDataList[2].focused).isFalse() |
| } |
| |
| rule.runOnIdle { testDataList[1].focusRequester.requestFocus() } |
| rule.runOnIdle { |
| assertThat(testDataList[0].focused).isFalse() |
| assertThat(testDataList[1].focused).isTrue() |
| assertThat(testDataList[2].focused).isFalse() |
| } |
| |
| rule.runOnIdle { testDataList[2].focusRequester.requestFocus() } |
| rule.runOnIdle { |
| assertThat(testDataList[0].focused).isFalse() |
| assertThat(testDataList[1].focused).isFalse() |
| assertThat(testDataList[2].focused).isTrue() |
| } |
| } |
| |
| @Test |
| fun noCrushWhenSwitchingBetweenEnabledFocusedAndDisabledTextField() { |
| val enabled = mutableStateOf(true) |
| var focused = false |
| val tag = "textField" |
| rule.setContent { |
| CoreTextField( |
| value = TextFieldValue(), |
| onValueChange = {}, |
| enabled = enabled.value, |
| modifier = Modifier.testTag(tag).onFocusChanged { |
| focused = it.isFocused |
| } |
| ) |
| } |
| // bring enabled text field into focus |
| rule.onNodeWithTag(tag) |
| .performClick() |
| rule.runOnIdle { |
| assertThat(focused).isTrue() |
| } |
| |
| // make text field disabled |
| enabled.value = false |
| rule.runOnIdle { |
| assertThat(focused).isFalse() |
| } |
| |
| // make text field enabled again, it must not crash |
| enabled.value = true |
| rule.runOnIdle { |
| assertThat(focused).isFalse() |
| } |
| } |
| } |