forked from androidx/androidx
/
ComposePanelTest.kt
125 lines (109 loc) · 4.32 KB
/
ComposePanelTest.kt
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/*
* Copyright 2022 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.ui.awt
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.requiredSize
import androidx.compose.ui.Modifier
import androidx.compose.ui.layout.layout
import androidx.compose.ui.unit.Constraints
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.density
import com.google.common.truth.Truth.assertThat
import kotlinx.coroutines.runBlocking
import org.jetbrains.skiko.MainUIDispatcher
import org.junit.Assume
import org.junit.Test
import java.awt.Dimension
import java.awt.GraphicsEnvironment
import javax.swing.JFrame
class ComposePanelTest {
@Test
fun `don't override user preferred size`() {
Assume.assumeFalse(GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance)
runBlocking(MainUIDispatcher) {
val composePanel = ComposePanel()
composePanel.preferredSize = Dimension(234, 345)
assertThat(composePanel.preferredSize).isEqualTo(Dimension(234, 345))
val frame = JFrame()
try {
frame.contentPane.add(composePanel)
frame.isUndecorated = true
assertThat(composePanel.preferredSize).isEqualTo(Dimension(234, 345))
frame.pack()
assertThat(composePanel.size).isEqualTo(Dimension(234, 345))
assertThat(frame.size).isEqualTo(Dimension(234, 345))
} finally {
frame.dispose()
}
}
}
@Test
fun `pack to Compose content`() {
Assume.assumeFalse(GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance)
runBlocking(MainUIDispatcher) {
val composePanel = ComposePanel()
composePanel.setContent {
Box(Modifier.requiredSize(300.dp, 400.dp))
}
val frame = JFrame()
try {
frame.contentPane.add(composePanel)
frame.isUndecorated = true
frame.pack()
assertThat(composePanel.preferredSize).isEqualTo(Dimension(300, 400))
assertThat(frame.preferredSize).isEqualTo(Dimension(300, 400))
frame.isVisible = true
assertThat(composePanel.preferredSize).isEqualTo(Dimension(300, 400))
assertThat(frame.preferredSize).isEqualTo(Dimension(300, 400))
} finally {
frame.dispose()
}
}
}
@Test
fun `a single layout pass at the window start`() {
Assume.assumeFalse(GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance)
val layoutPassConstraints = mutableListOf<Constraints>()
runBlocking(MainUIDispatcher) {
val composePanel = ComposePanel()
composePanel.setContent {
Box(Modifier.fillMaxSize().layout { _, constraints ->
layoutPassConstraints.add(constraints)
layout(0, 0) {}
})
}
val frame = JFrame()
try {
frame.contentPane.add(composePanel)
frame.size = Dimension(300, 400)
frame.isUndecorated = true
frame.isVisible = true
frame.paint(frame.graphics)
assertThat(layoutPassConstraints).isEqualTo(
listOf(
Constraints.fixed(
width = (300 * frame.density.density).toInt(),
height = (400 * frame.density.density).toInt()
)
)
)
} finally {
frame.dispose()
}
}
}
}