Clip QS on draw in the containing FrameLayout (adefb369) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/qs/composefragment/QSFragmentCompose.kt

+63 −9

Original line number	Diff line number	Diff line
		@@ -19,6 +19,8 @@ package com.android.systemui.qs.composefragment
		import android.annotation.SuppressLint
		import android.content.Context
		import android.content.res.Configuration
		import android.graphics.Canvas
		import android.graphics.Path
		import android.graphics.PointF
		import android.graphics.Rect
		import android.os.Bundle
		@@ -125,7 +127,6 @@ import com.android.systemui.qs.composefragment.SceneKeys.debugName
		import com.android.systemui.qs.composefragment.SceneKeys.toIdleSceneKey
		import com.android.systemui.qs.composefragment.ui.GridAnchor
		import com.android.systemui.qs.composefragment.ui.NotificationScrimClipParams
		import com.android.systemui.qs.composefragment.ui.notificationScrimClip
		import com.android.systemui.qs.composefragment.ui.quickQuickSettingsToQuickSettings
		import com.android.systemui.qs.composefragment.ui.toEditMode
		import com.android.systemui.qs.composefragment.viewmodel.QSFragmentComposeViewModel
		@@ -241,7 +242,7 @@ constructor(
		FrameLayoutTouchPassthrough(
		context,
		{ notificationScrimClippingParams.isEnabled },
		{ notificationScrimClippingParams.params.top },
		snapshotFlow { notificationScrimClippingParams.params },
		// Only allow scrolling when we are fully expanded. That way, we don't intercept
		// swipes in lockscreen (when somehow QS is receiving touches).
		{ (scrollState.canScrollForward && viewModel.isQsFullyExpanded) \|\| isCustomizing },
		@@ -276,11 +277,6 @@ constructor(
		}
		}
		.graphicsLayer { alpha = viewModel.viewAlpha }
		.thenIf(notificationScrimClippingParams.isEnabled) {
		Modifier.notificationScrimClip {
		notificationScrimClippingParams.params
		}
		}
		.thenIf(!Flags.notificationShadeBlur()) {
		Modifier.offset {
		IntOffset(
		@@ -1061,17 +1057,75 @@ private const val EDIT_MODE_TIME_MILLIS = 500
		private class FrameLayoutTouchPassthrough(
		context: Context,
		private val clippingEnabledProvider: () -> Boolean,
		private val clippingTopProvider: () -> Int,
		private val clippingParams: Flow<NotificationScrimClipParams>,
		private val canScrollForwardQs: () -> Boolean,
		private val emitMotionEventForFalsing: () -> Unit,
		) : FrameLayout(context) {

		init {
		repeatWhenAttached {
		repeatOnLifecycle(Lifecycle.State.STARTED) {
		clippingParams.collect { currentClipParams = it }
		}
		}
		}

		private val currentClippingPath = Path()
		private var lastWidth = -1
		set(value) {
		if (field != value) {
		field = value
		updateClippingPath()
		}
		}

		private var currentClipParams = NotificationScrimClipParams()
		set(value) {
		if (field != value) {
		field = value
		updateClippingPath()
		}
		}

		private fun updateClippingPath() {
		currentClippingPath.rewind()
		if (clippingEnabledProvider()) {
		val right = width + currentClipParams.rightInset
		val left = -currentClipParams.leftInset
		val top = currentClipParams.top
		val bottom = currentClipParams.bottom
		currentClippingPath.addRoundRect(
		left.toFloat(),
		top.toFloat(),
		right.toFloat(),
		bottom.toFloat(),
		currentClipParams.radius.toFloat(),
		currentClipParams.radius.toFloat(),
		Path.Direction.CW,
		)
		}
		invalidate()
		}

		override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
		super.onLayout(changed, left, top, right, bottom)
		lastWidth = right - left
		}

		override fun dispatchDraw(canvas: Canvas) {
		if (!currentClippingPath.isEmpty) {
		canvas.clipOutPath(currentClippingPath)
		}
		super.dispatchDraw(canvas)
		}

		override fun isTransformedTouchPointInView(
		x: Float,
		y: Float,
		child: View?,
		outLocalPoint: PointF?,
		): Boolean {
		return if (clippingEnabledProvider() && y + translationY > clippingTopProvider()) {
		return if (clippingEnabledProvider() && y + translationY > currentClipParams.top) {
		false
		} else {
		super.isTransformedTouchPointInView(x, y, child, outLocalPoint)

packages/SystemUI/src/com/android/systemui/qs/composefragment/ui/NotificationScrimClip.kt→packages/SystemUI/src/com/android/systemui/qs/composefragment/ui/NotificationScrimClipParams.kt

+26 −0

Original line number	Diff line number	Diff line
		@@ -16,47 +16,6 @@

		package com.android.systemui.qs.composefragment.ui

		import androidx.compose.ui.Modifier
		import androidx.compose.ui.draw.drawWithContent
		import androidx.compose.ui.geometry.CornerRadius
		import androidx.compose.ui.geometry.Offset
		import androidx.compose.ui.geometry.Size
		import androidx.compose.ui.graphics.BlendMode
		import androidx.compose.ui.graphics.ClipOp
		import androidx.compose.ui.graphics.Color
		import androidx.compose.ui.graphics.CompositingStrategy
		import androidx.compose.ui.graphics.drawscope.clipRect
		import androidx.compose.ui.graphics.graphicsLayer

		/**
		* Clipping modifier for clipping out the notification scrim as it slides over QS. It will clip out
		* ([ClipOp.Difference]) a `RoundRect(-leftInset, top, width + rightInset, bottom, radius, radius)`
		* from the QS container.
		*/
		fun Modifier.notificationScrimClip(clipParams: () -> NotificationScrimClipParams): Modifier {
		return this.graphicsLayer { compositingStrategy = CompositingStrategy.Offscreen }
		.drawWithContent {
		drawContent()
		val params = clipParams()
		val left = -params.leftInset.toFloat()
		val right = size.width + params.rightInset.toFloat()
		val top = params.top.toFloat()
		val bottom = params.bottom.toFloat()
		val clipSize = Size(right - left, bottom - top)
		if (!clipSize.isEmpty()) {
		clipRect {
		drawRoundRect(
		color = Color.Black,
		cornerRadius = CornerRadius(params.radius.toFloat()),
		blendMode = BlendMode.Clear,
		topLeft = Offset(left, top),
		size = Size(right - left, bottom - top),
		)
		}
		}
		}
		}

		/** Params for [notificationScrimClip]. */
		data class NotificationScrimClipParams(
		val top: Int = 0,