Merge "Dim down controls when slider is active" into rvc-dev am: 56cd4dcad5

Change-Id: Ib5adfc3ebbdf4f53bd3b1a0639b1c672ec570f45

packages/SystemUI/res/values/dimens.xml

@@ -1253,6 +1253,7 @@
     <dimen name="control_base_item_margin">2dp</dimen>
     <dimen name="control_status_padding">3dp</dimen>
     <fraction name="controls_toggle_bg_intensity">5%</fraction>
+    <fraction name="controls_dimmed_alpha">40%</fraction>
 
     <!-- Home Controls activity view detail panel-->
     <dimen name="controls_activity_view_top_padding">25dp</dimen>

packages/SystemUI/src/com/android/systemui/controls/controller/ControlsController.kt

@@ -23,6 +23,7 @@ import android.service.controls.actions.ControlAction
 import com.android.systemui.controls.ControlStatus
 import com.android.systemui.controls.UserAwareController
 import com.android.systemui.controls.management.ControlsFavoritingActivity
+import com.android.systemui.controls.ui.ControlWithState
 import com.android.systemui.controls.ui.ControlsUiController
 import java.util.function.Consumer
 
@@ -111,6 +112,13 @@ interface ControlsController : UserAwareController {
         @ControlAction.ResponseResult response: Int
     )
 
+    /**
+     * When a control should be highlighted, dimming down what's around it.
+     *
+     * @param cws focused control, or {@code null} if nothing should be highlighted.
+     */
+    fun onFocusChanged(cws: ControlWithState?)
+
     // FAVORITE MANAGEMENT
 
     /**

packages/SystemUI/src/com/android/systemui/controls/controller/ControlsControllerImpl.kt

@@ -41,6 +41,7 @@ import com.android.systemui.broadcast.BroadcastDispatcher
 import com.android.systemui.controls.ControlStatus
 import com.android.systemui.controls.ControlsServiceInfo
 import com.android.systemui.controls.management.ControlsListingController
+import com.android.systemui.controls.ui.ControlWithState
 import com.android.systemui.controls.ui.ControlsUiController
 import com.android.systemui.dagger.qualifiers.Background
 import com.android.systemui.dump.DumpManager
@@ -504,6 +505,10 @@ class ControlsControllerImpl @Inject constructor (
         }
     }
 
+    override fun onFocusChanged(cws: ControlWithState?) {
+        uiController.onFocusChanged(cws)
+    }
+
     override fun refreshStatus(componentName: ComponentName, control: Control) {
         if (!confirmAvailability()) {
             Log.d(TAG, "Controls not available")

packages/SystemUI/src/com/android/systemui/controls/ui/ControlActionCoordinator.kt

@@ -25,6 +25,7 @@ import android.service.controls.actions.CommandAction
 import android.util.Log
 import android.view.HapticFeedbackConstants
 import com.android.systemui.R
+import com.android.systemui.controls.controller.ControlsController
 
 object ControlActionCoordinator {
     const val MIN_LEVEL = 0
@@ -76,4 +77,8 @@ object ControlActionCoordinator {
             it.show()
         }
     }
+
+    fun setFocusedElement(cvh: ControlViewHolder?, controlsController: ControlsController) {
+        controlsController.onFocusChanged(cvh?.cws)
+    }
 }

packages/SystemUI/src/com/android/systemui/controls/ui/ControlViewHolder.kt

@@ -31,6 +31,7 @@ import android.service.controls.templates.StatelessTemplate
 import android.service.controls.templates.TemperatureControlTemplate
 import android.service.controls.templates.ToggleRangeTemplate
 import android.service.controls.templates.ToggleTemplate
+import android.util.MathUtils
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
@@ -68,6 +69,8 @@ class ControlViewHolder(
 
     private val toggleBackgroundIntensity: Float = layout.context.resources
             .getFraction(R.fraction.controls_toggle_bg_intensity, 1, 1)
+    private val dimmedAlpha: Float = layout.context.resources
+            .getFraction(R.fraction.controls_dimmed_alpha, 1, 1)
     private var stateAnimator: ValueAnimator? = null
     private val baseLayer: GradientDrawable
     val icon: ImageView = layout.requireViewById(R.id.icon)
@@ -82,6 +85,11 @@ class ControlViewHolder(
     var lastAction: ControlAction? = null
     val deviceType: Int
         get() = cws.control?.let { it.getDeviceType() } ?: cws.ci.deviceType
+    var dimmed: Boolean = false
+        set(value) {
+            field = value
+            bindData(cws)
+        }
 
     init {
         val ld = layout.getBackground() as LayerDrawable
@@ -177,7 +185,8 @@ class ControlViewHolder(
 
         val fg = context.resources.getColorStateList(ri.foreground, context.theme)
         val bg = context.resources.getColor(R.color.control_default_background, context.theme)
-        val (clip, newAlpha) = if (enabled) {
+        val dimAlpha = if (dimmed) dimmedAlpha else 1f
+        var (clip, newAlpha) = if (enabled) {
             listOf(ri.enabledBackground, ALPHA_ENABLED)
         } else {
             listOf(R.color.control_default_background, ALPHA_DISABLED)
@@ -202,12 +211,14 @@ class ControlViewHolder(
             if (animated) {
                 val oldColor = color?.defaultColor ?: newClipColor
                 val oldBaseColor = baseLayer.color?.defaultColor ?: newBaseColor
+                val oldAlpha = layout.alpha
                 stateAnimator = ValueAnimator.ofInt(clipLayer.alpha, newAlpha).apply {
                     addUpdateListener {
                         alpha = it.animatedValue as Int
                         setColor(ColorUtils.blendARGB(oldColor, newClipColor, it.animatedFraction))
                         baseLayer.setColor(ColorUtils.blendARGB(oldBaseColor,
                                 newBaseColor, it.animatedFraction))
+                        layout.alpha = MathUtils.lerp(oldAlpha, dimAlpha, it.animatedFraction)
                     }
                     addListener(object : AnimatorListenerAdapter() {
                         override fun onAnimationEnd(animation: Animator?) {
@@ -222,6 +233,7 @@ class ControlViewHolder(
                 alpha = newAlpha
                 setColor(newClipColor)
                 baseLayer.setColor(newBaseColor)
+                layout.alpha = dimAlpha
             }
         }
     }

packages/SystemUI/src/com/android/systemui/controls/ui/ControlsUiController.kt

@@ -36,4 +36,5 @@ interface ControlsUiController {
         controlId: String,
         @ControlAction.ResponseResult response: Int
     )
+    fun onFocusChanged(controlWithState: ControlWithState?)
 }

packages/SystemUI/src/com/android/systemui/controls/ui/ControlsUiControllerImpl.kt

@@ -209,6 +209,20 @@ class ControlsUiControllerImpl @Inject constructor (
         }
     }
 
+    override fun onFocusChanged(focusedControl: ControlWithState?) {
+        controlViewsById.forEach { key: ControlKey, viewHolder: ControlViewHolder ->
+            val state = controlsById.get(key) ?: return@forEach
+            val shouldBeDimmed = focusedControl != null && state != focusedControl
+            if (viewHolder.dimmed == shouldBeDimmed) {
+                return@forEach
+            }
+
+            uiExecutor.execute {
+                viewHolder.dimmed = shouldBeDimmed
+            }
+        }
+    }
+
     private fun startFavoritingActivity(context: Context, si: StructureInfo) {
         startTargetedActivity(context, si, ControlsFavoritingActivity::class.java)
     }

packages/SystemUI/src/com/android/systemui/controls/ui/ToggleRangeBehavior.kt

@@ -175,6 +175,7 @@ class ToggleRangeBehavior : Behavior {
     fun beginUpdateRange() {
         status.setTextSize(TypedValue.COMPLEX_UNIT_PX, context.getResources()
                 .getDimensionPixelSize(R.dimen.control_status_expanded).toFloat())
+        ControlActionCoordinator.setFocusedElement(cvh, cvh.controlsController)
     }
 
     fun updateRange(level: Int, checked: Boolean, isDragging: Boolean) {
@@ -243,6 +244,7 @@ class ToggleRangeBehavior : Behavior {
         status.setText("$currentStatusText $currentRangeValue")
         cvh.action(FloatAction(rangeTemplate.getTemplateId(),
             findNearestStep(levelToRangeValue(clipLayer.getLevel()))))
+        ControlActionCoordinator.setFocusedElement(null, cvh.controlsController)
     }
 
     fun findNearestStep(value: Float): Float {