| /* |
| * 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.text |
| |
| import androidx.compose.foundation.text.selection.Selectable |
| import androidx.compose.foundation.text.selection.Selection |
| import androidx.compose.foundation.text.selection.SelectionAdjustment |
| import androidx.compose.foundation.text.selection.SelectionRegistrarImpl |
| import androidx.compose.ui.geometry.Offset |
| import androidx.compose.ui.layout.LayoutCoordinates |
| import androidx.compose.ui.text.AnnotatedString |
| import androidx.compose.ui.text.font.FontFamily |
| import androidx.compose.ui.text.TextLayoutInput |
| import androidx.compose.ui.text.TextLayoutResult |
| import androidx.compose.ui.text.TextStyle |
| import androidx.compose.ui.text.style.ResolvedTextDirection |
| import androidx.compose.ui.text.style.TextOverflow |
| import androidx.compose.ui.unit.Constraints |
| import androidx.compose.ui.unit.Density |
| import androidx.compose.ui.unit.IntSize |
| import androidx.compose.ui.unit.LayoutDirection |
| import com.nhaarman.mockitokotlin2.doReturn |
| import com.nhaarman.mockitokotlin2.mock |
| import com.nhaarman.mockitokotlin2.spy |
| import com.nhaarman.mockitokotlin2.times |
| import com.nhaarman.mockitokotlin2.verify |
| import com.nhaarman.mockitokotlin2.whenever |
| import org.junit.Before |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| @OptIn(InternalFoundationTextApi::class) |
| class TextSelectionLongPressDragTest { |
| private val selectionRegistrar = spy(SelectionRegistrarImpl()) |
| private val selectableId = 1L |
| private val selectable = mock<Selectable>().also { |
| whenever(it.selectableId).thenReturn(selectableId) |
| } |
| |
| private val fakeSelection: Selection = Selection( |
| start = Selection.AnchorInfo( |
| direction = ResolvedTextDirection.Ltr, |
| offset = 0, |
| selectableId = selectableId |
| ), |
| end = Selection.AnchorInfo( |
| direction = ResolvedTextDirection.Ltr, |
| offset = 5, |
| selectableId = selectableId |
| ) |
| ) |
| |
| private lateinit var gesture: TextDragObserver |
| private lateinit var layoutCoordinates: LayoutCoordinates |
| private lateinit var state: TextState |
| private lateinit var fontFamilyResolver: FontFamily.Resolver |
| |
| @Before |
| fun setup() { |
| selectionRegistrar.subscribe(selectable) |
| |
| layoutCoordinates = mock { |
| on { isAttached } doReturn true |
| } |
| fontFamilyResolver = mock() |
| |
| val delegate = TextDelegate( |
| text = AnnotatedString(""), |
| style = TextStyle(), |
| density = Density(1.0f), |
| fontFamilyResolver = fontFamilyResolver |
| ) |
| state = TextState(delegate, selectableId) |
| state.layoutCoordinates = layoutCoordinates |
| state.layoutResult = TextLayoutResult( |
| TextLayoutInput( |
| text = AnnotatedString.Builder("Hello, World").toAnnotatedString(), |
| style = TextStyle(), |
| placeholders = listOf(), |
| maxLines = 1, |
| softWrap = true, |
| overflow = TextOverflow.Ellipsis, |
| density = Density(1.0f), |
| layoutDirection = LayoutDirection.Ltr, |
| fontFamilyResolver = mock(), |
| constraints = Constraints.fixedWidth(100) |
| ), |
| multiParagraph = mock(), |
| size = IntSize(50, 50) |
| ) |
| |
| val controller = TextController(state).also { |
| it.update(selectionRegistrar) |
| } |
| gesture = controller.longPressDragObserver |
| } |
| |
| @Test |
| fun longPressDragObserver_onLongPress_calls_notifySelectionInitiated() { |
| val position = Offset(100f, 100f) |
| whenever(state.layoutResult?.getOffsetForPosition(position)).thenReturn("Hello".length) |
| |
| gesture.onStart(position) |
| |
| verify(selectionRegistrar, times(1)).notifySelectionUpdateStart( |
| layoutCoordinates = layoutCoordinates, |
| startPosition = position, |
| adjustment = SelectionAdjustment.Word |
| ) |
| } |
| |
| @Test |
| fun longPressDragObserver_onLongPress_out_of_boundary_calls_notifySelectionUpdateSelectAll() { |
| val position = Offset(100f, 100f) |
| whenever(state.layoutResult?.getOffsetForPosition(position)) |
| .thenReturn("Hello, World".length) |
| |
| gesture.onStart(position) |
| |
| verify(selectionRegistrar, times(1)).notifySelectionUpdateSelectAll( |
| selectableId = selectableId |
| ) |
| } |
| |
| @Test |
| fun longPressDragObserver_onDragStart_reset_dragTotalDistance() { |
| // Setup. Make sure selectionManager.dragTotalDistance is not 0. |
| val dragDistance1 = Offset(15f, 10f) |
| val beginPosition1 = Offset(30f, 20f) |
| val dragDistance2 = Offset(100f, 300f) |
| val beginPosition2 = Offset(300f, 200f) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition1)) |
| .thenReturn("Hello".length) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition1 + dragDistance1)) |
| .thenReturn("Hello".length) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition2)) |
| .thenReturn("Hello".length) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition2 + dragDistance2)) |
| .thenReturn("Hello".length) |
| |
| gesture.onStart(beginPosition1) |
| gesture.onDrag(dragDistance1) |
| // Setup. Cancel selection and reselect. |
| // selectionManager.onRelease() |
| // Start the new selection |
| gesture.onStart(beginPosition2) |
| selectionRegistrar.subselections = mapOf(selectableId to fakeSelection) |
| |
| // Act. Reset selectionManager.dragTotalDistance to zero. |
| gesture.onDrag(dragDistance2) |
| |
| // Verify. |
| verify(selectionRegistrar, times(1)) |
| .notifySelectionUpdate( |
| layoutCoordinates = layoutCoordinates, |
| newPosition = beginPosition2 + dragDistance2, |
| previousPosition = beginPosition2, |
| adjustment = SelectionAdjustment.CharacterWithWordAccelerate, |
| isStartHandle = false |
| ) |
| } |
| |
| @Test |
| fun longPressDragObserver_onDrag_calls_notifySelectionDrag() { |
| val dragDistance = Offset(15f, 10f) |
| val beginPosition = Offset(30f, 20f) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition)) |
| .thenReturn("Hello".length) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition + dragDistance)) |
| .thenReturn("Hello".length) |
| gesture.onStart(beginPosition) |
| selectionRegistrar.subselections = mapOf(selectableId to fakeSelection) |
| |
| gesture.onDrag(dragDistance) |
| verify(selectionRegistrar, times(1)) |
| .notifySelectionUpdate( |
| layoutCoordinates = layoutCoordinates, |
| newPosition = beginPosition + dragDistance, |
| previousPosition = beginPosition, |
| adjustment = SelectionAdjustment.CharacterWithWordAccelerate, |
| isStartHandle = false |
| ) |
| } |
| |
| @Test |
| fun longPressDragObserver_onDrag_out_of_boundary_not_call_notifySelectionDrag() { |
| val dragDistance = Offset(15f, 10f) |
| val beginPosition = Offset(30f, 20f) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition)) |
| .thenReturn("Hello, World".length) |
| whenever(state.layoutResult?.getOffsetForPosition(beginPosition + dragDistance)) |
| .thenReturn("Hello, World".length) |
| gesture.onStart(beginPosition) |
| selectionRegistrar.subselections = mapOf(selectableId to fakeSelection) |
| |
| gesture.onDrag(dragDistance) |
| verify(selectionRegistrar, times(0)) |
| .notifySelectionUpdate( |
| layoutCoordinates = layoutCoordinates, |
| newPosition = beginPosition + dragDistance, |
| previousPosition = beginPosition, |
| adjustment = SelectionAdjustment.Character, |
| isStartHandle = false |
| ) |
| } |
| |
| @Test |
| fun longPressDragObserver_onStop_calls_notifySelectionEnd() { |
| val beginPosition = Offset(30f, 20f) |
| gesture.onStart(beginPosition) |
| selectionRegistrar.subselections = mapOf(selectableId to fakeSelection) |
| gesture.onStop() |
| |
| verify(selectionRegistrar, times(1)) |
| .notifySelectionUpdateEnd() |
| } |
| |
| @Test |
| fun longPressDragObserver_onCancel_calls_notifySelectionEnd() { |
| val beginPosition = Offset(30f, 20f) |
| gesture.onStart(beginPosition) |
| selectionRegistrar.subselections = mapOf(selectableId to fakeSelection) |
| gesture.onCancel() |
| |
| verify(selectionRegistrar, times(1)) |
| .notifySelectionUpdateEnd() |
| } |
| } |
