/*
* 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.ui.node
import androidx.compose.ui.geometry.Offset
import androidx.compose.ui.input.pointer.PointerInputFilter
import androidx.compose.ui.input.pointer.PointerInputModifier
internal class PointerInputDelegatingWrapper(
wrapped: LayoutNodeWrapper,
pointerInputModifier: PointerInputModifier
) : DelegatingLayoutNodeWrapper<PointerInputModifier>(wrapped, pointerInputModifier) {
init {
pointerInputModifier.pointerInputFilter.layoutCoordinates = this
}
override var modifier: PointerInputModifier
get() = super.modifier
set(value) {
super.modifier = value
value.pointerInputFilter.layoutCoordinates = this
}
override fun hitTest(
pointerPosition: Offset,
hitTestResult: HitTestResult<PointerInputFilter>,
isTouchEvent: Boolean
) {
hitTestInMinimumTouchTarget(
pointerPosition,
hitTestResult,
modifier.pointerInputFilter.interceptOutOfBoundsChildEvents,
isTouchEvent,
modifier.pointerInputFilter
) {
hitTestChild(pointerPosition, hitTestResult, isTouchEvent)
}
}
private fun hitTestChild(
pointerPosition: Offset,
hitTestResult: HitTestResult<PointerInputFilter>,
isTouchEvent: Boolean
) {
// Also, keep looking to see if we also might hit any children.
// This avoids checking layer bounds twice as when we call super.hitTest()
val positionInWrapped = wrapped.fromParentPosition(pointerPosition)
wrapped.hitTest(positionInWrapped, hitTestResult, isTouchEvent)
}
}