| /* |
| * 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.ui.core.test |
| |
| import android.os.Build |
| import androidx.compose.Composable |
| import androidx.compose.emptyContent |
| import androidx.compose.state |
| import androidx.test.filters.MediumTest |
| import androidx.test.filters.SdkSuppress |
| import androidx.ui.core.DensityAmbient |
| import androidx.ui.core.Layout |
| import androidx.ui.core.Modifier |
| import androidx.ui.core.TransformOrigin |
| import androidx.ui.core.drawBehind |
| import androidx.ui.core.drawLayer |
| import androidx.ui.core.gesture.pressIndicatorGestureFilter |
| import androidx.ui.core.testTag |
| import androidx.compose.foundation.Box |
| import androidx.compose.ui.graphics.Color |
| import androidx.compose.ui.graphics.toArgb |
| import androidx.compose.foundation.layout.fillMaxSize |
| import androidx.compose.foundation.layout.offset |
| import androidx.compose.foundation.layout.preferredSize |
| import androidx.ui.test.captureToBitmap |
| import androidx.ui.test.createComposeRule |
| import androidx.ui.test.performPartialGesture |
| import androidx.ui.test.onNodeWithTag |
| import androidx.ui.test.down |
| import androidx.compose.ui.geometry.Offset |
| import androidx.ui.unit.dp |
| import org.junit.Assert |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| import java.util.concurrent.CountDownLatch |
| import java.util.concurrent.TimeUnit |
| import kotlin.math.max |
| |
| @MediumTest |
| @SdkSuppress(minSdkVersion = Build.VERSION_CODES.O) |
| @RunWith(JUnit4::class) |
| class LayerTouchTransformTest { |
| |
| @get:Rule |
| val rule = createComposeRule() |
| |
| @Test |
| fun testTransformTouchEventConsumed() { |
| val testTag = "transformedComposable" |
| var latch: CountDownLatch? = null |
| rule.setContent { |
| val pressed = state { false } |
| val onStart: (Offset) -> Unit = { |
| pressed.value = true |
| } |
| |
| val onStop = { |
| pressed.value = false |
| } |
| |
| val color = if (pressed.value) { |
| Color.Red |
| } else { |
| Color.Blue |
| } |
| |
| val background = Modifier.drawBehind { |
| drawRect(Color.Gray) |
| } |
| |
| val latchDrawModifier = Modifier.drawBehind { latch?.countDown() } |
| |
| val containerDp = (200.0f / DensityAmbient.current.density).dp |
| val boxDp = (50.0f / DensityAmbient.current.density).dp |
| |
| val offsetX = (270.0f / DensityAmbient.current.density).dp |
| val offsetY = (120.0f / DensityAmbient.current.density).dp |
| Box(Modifier.testTag(testTag)) { |
| SimpleLayout( |
| modifier = Modifier.fillMaxSize().offset(offsetX, offsetY) |
| ) { |
| SimpleLayout(modifier = background + Modifier.preferredSize(containerDp)) { |
| SimpleLayout(modifier = |
| Modifier.drawLayer( |
| translationX = 50.0f, |
| translationY = 30.0f, |
| rotationZ = 45.0f, |
| scaleX = 2.0f, |
| scaleY = 0.5f, |
| transformOrigin = |
| TransformOrigin(1.0f, 1.0f) |
| ).drawBehind { |
| drawRect(color) |
| } |
| .plus(latchDrawModifier) |
| .preferredSize(boxDp) |
| .pressIndicatorGestureFilter(onStart, onStop, onStop) |
| ) |
| } |
| } |
| } |
| } |
| |
| // Touch position outside the bounds of the target composable |
| // however, after transformations, this point will be within |
| // its bounds |
| |
| val mappedPosition = Offset(342.0f, 168.0f) |
| val node = onNodeWithTag(testTag).performPartialGesture { down(mappedPosition) } |
| |
| latch = CountDownLatch(1).apply { |
| await(5, TimeUnit.SECONDS) |
| } |
| |
| node.captureToBitmap().apply { |
| Assert.assertEquals( |
| Color.Red.toArgb(), |
| getPixel( |
| mappedPosition.x.toInt(), |
| mappedPosition.y.toInt() |
| ) |
| ) |
| } |
| } |
| } |
| |
| @Composable |
| fun SimpleLayout(modifier: Modifier, children: @Composable () -> Unit = emptyContent()) { |
| Layout( |
| children, |
| modifier |
| ) { measurables, constraints -> |
| val childConstraints = constraints.copy(minWidth = 0, minHeight = 0) |
| val placeables = measurables.map { it.measure(childConstraints) } |
| var containerWidth = constraints.minWidth |
| var containerHeight = constraints.minHeight |
| placeables.forEach { |
| containerWidth = max(containerWidth, it.width) |
| containerHeight = max(containerHeight, it.height) |
| } |
| layout(containerWidth, containerHeight) { |
| placeables.forEach { |
| it.place(0, 0) |
| } |
| } |
| } |
| } |