Fix back gesture/dismiss button in screenshot shelf UI (cb9c41e8) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt

+9 −18

Original line number	Diff line number	Diff line
		@@ -42,7 +42,6 @@ import com.android.systemui.screenshot.ScreenshotEvent.SCREENSHOT_DISMISSED_OTHE
		import com.android.systemui.screenshot.scroll.ScrollCaptureController
		import com.android.systemui.screenshot.ui.ScreenshotAnimationController
		import com.android.systemui.screenshot.ui.ScreenshotShelfView
		import com.android.systemui.screenshot.ui.SwipeGestureListener
		import com.android.systemui.screenshot.ui.binder.ScreenshotShelfViewBinder
		import com.android.systemui.screenshot.ui.viewmodel.ScreenshotViewModel
		import dagger.assisted.Assisted
		@@ -76,17 +75,15 @@ constructor(
		override var isPendingSharedTransition = false

		private val animationController = ScreenshotAnimationController(view)
		private val swipeGestureListener =
		SwipeGestureListener(
		view,
		onDismiss = { requestDismissal(ScreenshotEvent.SCREENSHOT_SWIPE_DISMISSED, it) },
		onCancel = { animationController.getSwipeReturnAnimation().start() }
		)

		init {
		ScreenshotShelfViewBinder.bind(view, viewModel, LayoutInflater.from(context)) {
		swipeGestureListener.onMotionEvent(it)
		}
		ScreenshotShelfViewBinder.bind(
		view,
		viewModel,
		LayoutInflater.from(context),
		onDismissalRequested = { event, velocity -> requestDismissal(event, velocity) },
		onDismissalCancelled = { animationController.getSwipeReturnAnimation().start() }
		)
		addPredictiveBackListener { requestDismissal(SCREENSHOT_DISMISSED_OTHER) }
		setOnKeyListener { requestDismissal(SCREENSHOT_DISMISSED_OTHER) }
		debugLog(DEBUG_WINDOW) { "adding OnComputeInternalInsetsListener" }
		@@ -120,10 +117,10 @@ constructor(
		override fun setChipIntents(imageData: SavedImageData) {}

		override fun requestDismissal(event: ScreenshotEvent?) {
		requestDismissal(event, getDismissalVelocity())
		requestDismissal(event, null)
		}

		private fun requestDismissal(event: ScreenshotEvent?, velocity: Float) {
		private fun requestDismissal(event: ScreenshotEvent?, velocity: Float?) {
		debugLog(DEBUG_DISMISS) { "screenshot dismissal requested: $event" }

		// If we're already animating out, don't restart the animation
		@@ -235,12 +232,6 @@ constructor(
		)
		}

		private fun getDismissalVelocity(): Float {
		val isLTR = view.resources.configuration.layoutDirection == View.LAYOUT_DIRECTION_LTR
		// dismiss to the left in LTR locales, to the right in RTL
		return if (isLTR) -1.5f else 1.5f
		}

		@AssistedFactory
		interface Factory : ScreenshotViewProxy.Factory {
		override fun getProxy(context: Context, displayId: Int): ScreenshotShelfViewProxy

packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotAnimationController.kt

+18 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,8 @@ import android.animation.ValueAnimator
		import android.view.View
		import com.android.systemui.res.R
		import kotlin.math.abs
		import kotlin.math.max
		import kotlin.math.sign

		class ScreenshotAnimationController(private val view: ScreenshotShelfView) {
		private var animator: Animator? = null
		@@ -52,7 +54,8 @@ class ScreenshotAnimationController(private val view: ScreenshotShelfView) {
		return animator
		}

		fun getSwipeDismissAnimation(velocity: Float): Animator {
		fun getSwipeDismissAnimation(requestedVelocity: Float?): Animator {
		val velocity = getAdjustedVelocity(requestedVelocity)
		val screenWidth = view.resources.displayMetrics.widthPixels
		// translation at which point the visible UI is fully off the screen (in the direction
		// according to velocity)
		@@ -77,4 +80,18 @@ class ScreenshotAnimationController(private val view: ScreenshotShelfView) {
		fun cancel() {
		animator?.cancel()
		}

		private fun getAdjustedVelocity(requestedVelocity: Float?): Float {
		return if (requestedVelocity == null) {
		val isLTR = view.resources.configuration.layoutDirection == View.LAYOUT_DIRECTION_LTR
		// dismiss to the left in LTR locales, to the right in RTL
		if (isLTR) -1 * MINIMUM_VELOCITY else MINIMUM_VELOCITY
		} else {
		sign(requestedVelocity) * max(MINIMUM_VELOCITY, abs(requestedVelocity))
		}
		}

		companion object {
		private const val MINIMUM_VELOCITY = 1.5f // pixels per second
		}
		}

packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt

+2 −0

Original line number	Diff line number	Diff line
		@@ -40,6 +40,8 @@ class ScreenshotShelfView(context: Context, attrs: AttributeSet? = null) :

		override fun onFinishInflate() {
		super.onFinishInflate()
		// Get focus so that the key events go to the layout.
		isFocusableInTouchMode = true
		screenshotPreview = requireViewById(R.id.screenshot_preview)
		actionsContainerBackground = requireViewById(R.id.actions_container_background)
		dismissButton = requireViewById(R.id.screenshot_dismiss_button)

packages/SystemUI/src/com/android/systemui/screenshot/ui/SwipeGestureListener.kt

+1 −2

Original line number	Diff line number	Diff line
		@@ -21,7 +21,6 @@ import android.view.VelocityTracker
		import android.view.View
		import com.android.systemui.screenshot.FloatingWindowUtil
		import kotlin.math.abs
		import kotlin.math.sign

		class SwipeGestureListener(
		private val view: View,
		@@ -52,7 +51,7 @@ class SwipeGestureListener(
		abs(view.translationX) >
		FloatingWindowUtil.dpToPx(displayMetrics, DISMISS_THRESHOLD_DP)
		) {
		onDismiss.invoke(1.5f * sign(view.translationX))
		onDismiss.invoke(xVelocity)
		return true
		} else {
		velocityTracker.clear()

packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt

+18 −5

Original line number	Diff line number	Diff line
		@@ -17,7 +17,6 @@
		package com.android.systemui.screenshot.ui.binder

		import android.view.LayoutInflater
		import android.view.MotionEvent
		import android.view.View
		import android.widget.ImageView
		import android.widget.LinearLayout
		@@ -26,7 +25,9 @@ import androidx.lifecycle.lifecycleScope
		import androidx.lifecycle.repeatOnLifecycle
		import com.android.systemui.lifecycle.repeatWhenAttached
		import com.android.systemui.res.R
		import com.android.systemui.screenshot.ScreenshotEvent
		import com.android.systemui.screenshot.ui.ScreenshotShelfView
		import com.android.systemui.screenshot.ui.SwipeGestureListener
		import com.android.systemui.screenshot.ui.viewmodel.ScreenshotViewModel
		import com.android.systemui.util.children
		import kotlinx.coroutines.launch
		@@ -36,16 +37,28 @@ object ScreenshotShelfViewBinder {
		view: ScreenshotShelfView,
		viewModel: ScreenshotViewModel,
		layoutInflater: LayoutInflater,
		onTouchListener: (MotionEvent) -> Boolean,
		onDismissalRequested: (event: ScreenshotEvent, velocity: Float?) -> Unit,
		onDismissalCancelled: () -> Unit,
		) {
		view.onTouchInterceptListener = onTouchListener
		val swipeGestureListener =
		SwipeGestureListener(
		view,
		onDismiss = {
		onDismissalRequested(ScreenshotEvent.SCREENSHOT_SWIPE_DISMISSED, it)
		},
		onCancel = onDismissalCancelled
		)
		view.onTouchInterceptListener = { swipeGestureListener.onMotionEvent(it) }

		val previewView: ImageView = view.requireViewById(R.id.screenshot_preview)
		val previewBorder = view.requireViewById<View>(R.id.screenshot_preview_border)
		previewView.clipToOutline = true
		val actionsContainer: LinearLayout = view.requireViewById(R.id.screenshot_actions)
		view.requireViewById<View>(R.id.screenshot_dismiss_button).visibility =
		if (viewModel.showDismissButton) View.VISIBLE else View.GONE
		val dismissButton = view.requireViewById<View>(R.id.screenshot_dismiss_button)
		dismissButton.visibility = if (viewModel.showDismissButton) View.VISIBLE else View.GONE
		dismissButton.setOnClickListener {
		onDismissalRequested(ScreenshotEvent.SCREENSHOT_EXPLICIT_DISMISSAL, null)
		}

		view.repeatWhenAttached {
		lifecycleScope.launch {