| /* |
| * Copyright 2019 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. |
| */ |
| |
| // AspectRatio composable is deprecated |
| @file:Suppress("DEPRECATION") |
| |
| package androidx.ui.layout.test |
| |
| import androidx.compose.Composable |
| import androidx.test.filters.SmallTest |
| import androidx.ui.core.Alignment |
| import androidx.ui.core.Constraints |
| import androidx.ui.core.Layout |
| import androidx.ui.core.OnChildPositioned |
| import androidx.ui.core.Ref |
| import androidx.ui.layout.Align |
| import androidx.ui.layout.AspectRatio |
| import androidx.ui.layout.Container |
| import androidx.ui.layout.DpConstraints |
| import androidx.ui.unit.IntPx |
| import androidx.ui.unit.IntPxSize |
| import androidx.ui.unit.PxPosition |
| import androidx.ui.unit.PxSize |
| import androidx.ui.unit.dp |
| import androidx.ui.unit.ipx |
| import androidx.ui.unit.px |
| import androidx.ui.unit.toPxSize |
| import androidx.ui.unit.withDensity |
| import org.junit.Assert.assertEquals |
| import org.junit.Assert.assertNotNull |
| import org.junit.Assert.assertTrue |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.CountDownLatch |
| import java.util.concurrent.TimeUnit |
| |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class AspectRatioTest : LayoutTest() { |
| @Test |
| fun testAspectRatio_placesChild() = withDensity(density) { |
| val positionedLatch = CountDownLatch(1) |
| val containerSize = Ref<PxSize>() |
| val containerPosition = Ref<PxPosition>() |
| show { |
| Align(alignment = Alignment.TopLeft) { |
| AspectRatio(1f) { |
| OnChildPositioned(onPositioned = { coordinates -> |
| containerSize.value = coordinates.size.toPxSize() |
| containerPosition.value = coordinates.localToGlobal(PxPosition(0.px, 0.px)) |
| positionedLatch.countDown() |
| }) { |
| Container(width = 30.dp, height = 40.dp) { } |
| } |
| } |
| } |
| } |
| positionedLatch.await(1, TimeUnit.SECONDS) |
| |
| assertNotNull(containerSize.value) |
| assertEquals(containerSize.value!!.width, containerSize.value!!.height) |
| assertNotNull(containerPosition.value) |
| assertEquals(containerPosition.value!!.x, 0.px) |
| assertEquals(containerPosition.value!!.y, 0.px) |
| } |
| |
| @Test |
| fun testAspectRatio_withNoChild() = withDensity(density) { |
| val sizeDp = 10.dp |
| val sizePx = 10.dp.toIntPx() |
| |
| val positionedLatch = CountDownLatch(2) |
| val size = arrayOf(Ref<IntPxSize>(), Ref<IntPxSize>()) |
| val position = arrayOf(Ref<PxPosition>(), Ref<PxPosition>()) |
| show { |
| Align(alignment = Alignment.TopLeft) { |
| ConstrainedBox(DpConstraints(maxWidth = sizeDp)) { |
| AspectRatio(1f) { |
| SaveLayoutInfo(size[0], position[0], positionedLatch) |
| } |
| } |
| } |
| Align(alignment = Alignment.TopLeft) { |
| ConstrainedBox(DpConstraints(sizeDp, 15.dp, sizeDp, 30.dp)) { |
| AspectRatio(2f) { |
| SaveLayoutInfo(size[1], position[1], positionedLatch) |
| } |
| } |
| } |
| } |
| positionedLatch.await(1, TimeUnit.SECONDS) |
| |
| assertNotNull(size[0].value) |
| assertEquals(sizePx, size[0].value!!.width) |
| assertEquals(sizePx, size[0].value!!.height) |
| assertNotNull(size[1].value) |
| assertEquals(sizePx, size[1].value!!.width) |
| assertEquals(sizePx, size[1].value!!.height) |
| } |
| |
| @Test |
| fun testAspectRatio_sizesCorrectly() = withDensity(density) { |
| assertEquals(IntPxSize(30.ipx, 30.ipx), getSize(1f, Constraints(maxWidth = 30.ipx))) |
| assertEquals(IntPxSize(30.ipx, 15.ipx), getSize(2f, Constraints(maxWidth = 30.ipx))) |
| assertEquals( |
| IntPxSize(10.ipx, 10.ipx), |
| getSize(1f, Constraints(maxWidth = 30.ipx, maxHeight = 10.ipx)) |
| ) |
| assertEquals( |
| IntPxSize(20.ipx, 10.ipx), |
| getSize(2f, Constraints(maxWidth = 30.ipx, maxHeight = 10.ipx)) |
| ) |
| assertEquals( |
| IntPxSize(10.ipx, 5.ipx), |
| getSize(2f, Constraints(minWidth = 10.ipx, minHeight = 5.ipx)) |
| ) |
| assertEquals( |
| IntPxSize(20.ipx, 10.ipx), |
| getSize(2f, Constraints(minWidth = 5.ipx, minHeight = 10.ipx)) |
| ) |
| } |
| |
| @Test |
| fun testAspectRatio_intrinsicDimensions() = withDensity(density) { |
| testIntrinsics(@Composable { |
| AspectRatio(2f) { |
| Container(width = 30.dp, height = 40.dp) { } |
| } |
| }) { minIntrinsicWidth, minIntrinsicHeight, maxIntrinsicWidth, maxIntrinsicHeight -> |
| assertEquals(40.ipx, minIntrinsicWidth(20.ipx)) |
| assertEquals(40.ipx, maxIntrinsicWidth(20.ipx)) |
| assertEquals(20.ipx, minIntrinsicHeight(40.ipx)) |
| assertEquals(20.ipx, maxIntrinsicHeight(40.ipx)) |
| |
| assertEquals(30.dp.toIntPx(), minIntrinsicWidth(IntPx.Infinity)) |
| assertEquals(30.dp.toIntPx(), maxIntrinsicWidth(IntPx.Infinity)) |
| assertEquals(40.dp.toIntPx(), minIntrinsicHeight(IntPx.Infinity)) |
| assertEquals(40.dp.toIntPx(), maxIntrinsicHeight(IntPx.Infinity)) |
| } |
| } |
| |
| private fun getSize(aspectRatio: Float, aspectRatioConstraints: Constraints): IntPxSize { |
| val positionedLatch = CountDownLatch(1) |
| val size = Ref<IntPxSize>() |
| show { |
| Align(alignment = Alignment.TopLeft) { |
| val children = @Composable { |
| AspectRatio(aspectRatio) { |
| SaveLayoutInfo(size, Ref<PxPosition>(), positionedLatch) |
| } |
| } |
| Layout(children) { measurables, constraints -> |
| val placeable = measurables.first().measure(aspectRatioConstraints) |
| layout(constraints.maxWidth, constraints.maxHeight) { |
| placeable.place(0.ipx, 0.ipx) |
| } |
| } |
| } |
| } |
| assertTrue(positionedLatch.await(1, TimeUnit.SECONDS)) |
| assertNotNull(size.value) |
| return size.value!! |
| } |
| } |