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Commit 471dc8d1 authored by Florence Yang's avatar Florence Yang Committed by Automerger Merge Worker
Browse files

Merge "LS Wallpaper Sampling for LS Smartspace" into udc-dev am: 77c206e3 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22873896



Change-Id: I7ec37d2f8308535ff034c1aa74910b3dca7206bc
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 8149db13 77c206e3

core/java/android/app/WallpaperColors.java

+1 −1
Original line number Diff line number Diff line
@@ -588,7 +588,7 @@ public final class WallpaperColors implements Parcelable { 


        int hints = 0;

        double meanLuminance = totalLuminance / pixels.length;

        if (meanLuminance > BRIGHT_IMAGE_MEAN_LUMINANCE && darkPixels < maxDarkPixels) {

        if (meanLuminance > BRIGHT_IMAGE_MEAN_LUMINANCE && darkPixels <= maxDarkPixels) {

            hints |= HINT_SUPPORTS_DARK_TEXT;

        }

        if (meanLuminance < DARK_THEME_MEAN_LUMINANCE) {

core/java/android/app/WallpaperManager.java

+2 −2
Original line number Diff line number Diff line
@@ -1680,14 +1680,14 @@ public class WallpaperManager { 
     * @hide

     */

    public void addOnColorsChangedListener(@NonNull LocalWallpaperColorConsumer callback,

            List<RectF> regions) throws IllegalArgumentException {

            List<RectF> regions, int which) throws IllegalArgumentException {

        for (RectF region : regions) {

            if (!LOCAL_COLOR_BOUNDS.contains(region)) {

                throw new IllegalArgumentException("Regions must be within bounds "

                        + LOCAL_COLOR_BOUNDS);

            }

        }

        sGlobals.addOnColorsChangedListener(callback, regions, FLAG_SYSTEM,

        sGlobals.addOnColorsChangedListener(callback, regions, which,

                                                 mContext.getUserId(), mContext.getDisplayId());

    }

packages/SystemUI/shared/src/com/android/systemui/shared/regionsampling/RegionSampler.kt

+86 −30
Original line number Diff line number Diff line
@@ -21,9 +21,9 @@ import android.graphics.Color 
import android.graphics.Point

import android.graphics.Rect

import android.graphics.RectF

import android.util.Log

import android.view.View

import androidx.annotation.VisibleForTesting

import com.android.systemui.shared.navigationbar.RegionSamplingHelper

import java.io.PrintWriter

import java.util.concurrent.Executor
@@ -31,20 +31,21 @@ import java.util.concurrent.Executor 
open class RegionSampler

@JvmOverloads

constructor(

    val sampledView: View?,

    val sampledView: View,

    mainExecutor: Executor?,

    val bgExecutor: Executor?,

    val regionSamplingEnabled: Boolean,

    val isLockscreen: Boolean = false,

    val wallpaperManager: WallpaperManager? = WallpaperManager.getInstance(sampledView.context),

    val updateForegroundColor: UpdateColorCallback,

    val wallpaperManager: WallpaperManager? = WallpaperManager.getInstance(sampledView?.context)

) : WallpaperManager.LocalWallpaperColorConsumer {

    private var regionDarkness = RegionDarkness.DEFAULT

    private var samplingBounds = Rect()

    private val tmpScreenLocation = IntArray(2)

    @VisibleForTesting var regionSampler: RegionSamplingHelper? = null

    private var lightForegroundColor = Color.WHITE

    private var darkForegroundColor = Color.BLACK

    private val displaySize = Point()

    @VisibleForTesting val displaySize = Point()

    private var initialSampling: WallpaperColors? = null



    /**

     * Sets the colors to be used for Dark and Light Foreground.
@@ -57,6 +58,36 @@ constructor( 
        darkForegroundColor = darkColor

    }



    private val layoutChangedListener =

        object : View.OnLayoutChangeListener {



            override fun onLayoutChange(

                view: View?,

                left: Int,

                top: Int,

                right: Int,

                bottom: Int,

                oldLeft: Int,

                oldTop: Int,

                oldRight: Int,

                oldBottom: Int

            ) {



                // don't pass in negative bounds when region is in transition state

                if (sampledView.locationOnScreen[0] < 0 || sampledView.locationOnScreen[1] < 0) {

                    return

                }



                val currentViewRect = Rect(left, top, right, bottom)

                val oldViewRect = Rect(oldLeft, oldTop, oldRight, oldBottom)



                if (currentViewRect != oldViewRect) {

                    stopRegionSampler()

                    startRegionSampler()

                }

            }

        }



    /**

     * Determines which foreground color to use based on region darkness.

     *
@@ -84,40 +115,57 @@ constructor( 


    /** Start region sampler */

    fun startRegionSampler() {

        if (!regionSamplingEnabled || sampledView == null) {



        if (!regionSamplingEnabled) {

            if (DEBUG) Log.d(TAG, "startRegionSampler() | RegionSampling flag not enabled")

            return

        }



        val sampledRegion = calculateSampledRegion(sampledView)

        val regions = ArrayList<RectF>()

        val sampledRegionWithOffset = convertBounds(sampledRegion)

        sampledView.addOnLayoutChangeListener(layoutChangedListener)



        val screenLocationBounds = calculateScreenLocation(sampledView)

        if (screenLocationBounds == null) {

            if (DEBUG) Log.d(TAG, "startRegionSampler() | passed in null region")

            return

        }

        if (screenLocationBounds.isEmpty) {

            if (DEBUG) Log.d(TAG, "startRegionSampler() | passed in empty region")

            return

        }



        val sampledRegionWithOffset = convertBounds(screenLocationBounds)

        if (

            sampledRegionWithOffset.left < 0.0 ||

                sampledRegionWithOffset.right > 1.0 ||

                sampledRegionWithOffset.top < 0.0 ||

                sampledRegionWithOffset.bottom > 1.0

        ) {

            android.util.Log.e(

                "RegionSampler",

                "view out of bounds: $sampledRegion | " +

            if (DEBUG)

                Log.d(

                    TAG,

                    "startRegionSampler() | view out of bounds: $screenLocationBounds | " +

                        "screen width: ${displaySize.x}, screen height: ${displaySize.y}",

                    Exception()

                )

            return

        }



        val regions = ArrayList<RectF>()

        regions.add(sampledRegionWithOffset)



        wallpaperManager?.removeOnColorsChangedListener(this)

        wallpaperManager?.addOnColorsChangedListener(this, regions)

        wallpaperManager?.addOnColorsChangedListener(

            this,

            regions,

            if (isLockscreen) WallpaperManager.FLAG_LOCK else WallpaperManager.FLAG_SYSTEM

        )



        // TODO(b/265969235): conditionally set FLAG_LOCK or FLAG_SYSTEM once HS smartspace

        // implemented

        bgExecutor?.execute(

            Runnable {

                val initialSampling =

                    wallpaperManager?.getWallpaperColors(WallpaperManager.FLAG_LOCK)

                initialSampling =

                    wallpaperManager?.getWallpaperColors(

                        if (isLockscreen) WallpaperManager.FLAG_LOCK

                        else WallpaperManager.FLAG_SYSTEM

                    )

                onColorsChanged(sampledRegionWithOffset, initialSampling)

            }

        )
@@ -126,6 +174,7 @@ constructor( 
    /** Stop region sampler */

    fun stopRegionSampler() {

        wallpaperManager?.removeOnColorsChangedListener(this)

        sampledView.removeOnLayoutChangeListener(layoutChangedListener)

    }



    /** Dump region sampler */
@@ -138,22 +187,23 @@ constructor( 
        pw.println("passed-in sampledView: $sampledView")

        pw.println("calculated samplingBounds: $samplingBounds")

        pw.println(

            "sampledView width: ${sampledView?.width}, sampledView height: ${sampledView?.height}"

            "sampledView width: ${sampledView.width}, sampledView height: ${sampledView.height}"

        )

        pw.println("screen width: ${displaySize.x}, screen height: ${displaySize.y}")

        pw.println(

            "sampledRegionWithOffset: ${convertBounds(calculateSampledRegion(sampledView!!))}"

            "sampledRegionWithOffset: ${convertBounds(

                    calculateScreenLocation(sampledView) ?: RectF())}"

        )

        // TODO(b/265969235): mock initialSampling based on if component is on HS or LS wallpaper

        // HS Smartspace - wallpaperManager?.getWallpaperColors(WallpaperManager.FLAG_SYSTEM)

        // LS Smartspace, clock - wallpaperManager?.getWallpaperColors(WallpaperManager.FLAG_LOCK)

        pw.println(

            "initialSampling for lockscreen: " +

                "${wallpaperManager?.getWallpaperColors(WallpaperManager.FLAG_LOCK)}"

            "initialSampling for ${if (isLockscreen) "lockscreen" else "homescreen" }" +

                ": $initialSampling"

        )

    }



    fun calculateSampledRegion(sampledView: View): RectF {

    fun calculateScreenLocation(sampledView: View): RectF? {



        if (!sampledView.isLaidOut) return null



        val screenLocation = tmpScreenLocation

        /**

         * The method getLocationOnScreen is used to obtain the view coordinates relative to its
@@ -181,7 +231,8 @@ constructor( 
     */

    fun convertBounds(originalBounds: RectF): RectF {



        // TODO(b/265969235): GRAB # PAGES + CURRENT WALLPAPER PAGE # FROM LAUNCHER

        // TODO(b/265969235): GRAB # PAGES + CURRENT WALLPAPER PAGE # FROM LAUNCHER (--> HS

        // Smartspace always on 1st page)

        // TODO(b/265968912): remove hard-coded value once LS wallpaper supported

        val wallpaperPageNum = 0

        val numScreens = 1
@@ -214,6 +265,11 @@ constructor( 
            )

        updateForegroundColor()

    }



    companion object {

        private const val TAG = "RegionSampler"

        private const val DEBUG = false

    }

}



typealias UpdateColorCallback = () -> Unit

packages/SystemUI/src/com/android/keyguard/ClockEventController.kt

+11 −50
Original line number Diff line number Diff line
@@ -21,13 +21,11 @@ import android.content.Context 
import android.content.Intent

import android.content.IntentFilter

import android.content.res.Resources

import android.graphics.Rect

import android.text.format.DateFormat

import android.util.TypedValue

import android.view.View

import android.view.View.OnAttachStateChangeListener

import android.view.ViewTreeObserver

import android.widget.FrameLayout

import androidx.annotation.VisibleForTesting

import androidx.lifecycle.Lifecycle

import androidx.lifecycle.repeatOnLifecycle
@@ -55,16 +53,16 @@ import com.android.systemui.statusbar.policy.BatteryController 
import com.android.systemui.statusbar.policy.BatteryController.BatteryStateChangeCallback

import com.android.systemui.statusbar.policy.ConfigurationController

import com.android.systemui.util.concurrency.DelayableExecutor

import java.util.Locale

import java.util.TimeZone

import java.util.concurrent.Executor

import javax.inject.Inject

import kotlinx.coroutines.CoroutineScope

import kotlinx.coroutines.DisposableHandle

import kotlinx.coroutines.Job

import kotlinx.coroutines.flow.combine

import kotlinx.coroutines.flow.filter

import kotlinx.coroutines.launch

import java.util.Locale

import java.util.TimeZone

import java.util.concurrent.Executor

import javax.inject.Inject



/**

 * Controller for a Clock provided by the registry and used on the keyguard. Instantiated by
@@ -98,12 +96,7 @@ constructor( 


                value.initialize(resources, dozeAmount, 0f)



                if (regionSamplingEnabled) {

                    clock?.run {

                        smallClock.view.addOnLayoutChangeListener(mLayoutChangedListener)

                        largeClock.view.addOnLayoutChangeListener(mLayoutChangedListener)

                    }

                } else {

                if (!regionSamplingEnabled) {

                    updateColors()

                }

                updateFontSizes()
@@ -140,44 +133,10 @@ constructor( 
    private var disposableHandle: DisposableHandle? = null

    private val regionSamplingEnabled = featureFlags.isEnabled(REGION_SAMPLING)



    private val mLayoutChangedListener =

        object : View.OnLayoutChangeListener {



            override fun onLayoutChange(

                view: View?,

                left: Int,

                top: Int,

                right: Int,

                bottom: Int,

                oldLeft: Int,

                oldTop: Int,

                oldRight: Int,

                oldBottom: Int

            ) {

                view?.removeOnLayoutChangeListener(this)



                val parent = (view?.parent) as FrameLayout



                // don't pass in negative bounds when clocks are in transition state

                if (view.locationOnScreen[0] < 0 || view.locationOnScreen[1] < 0) {

                    return

                }



                val currentViewRect = Rect(left, top, right, bottom)

                val oldViewRect = Rect(oldLeft, oldTop, oldRight, oldBottom)



                if (

                    currentViewRect.width() != oldViewRect.width() ||

                        currentViewRect.height() != oldViewRect.height()

                ) {

                    updateRegionSampler(view)

                }

            }

        }



    private fun updateColors() {

        val wallpaperManager = WallpaperManager.getInstance(context)

        if (regionSamplingEnabled && !wallpaperManager.lockScreenWallpaperExists()) {

        if (regionSamplingEnabled) {

            regionSampler?.let { regionSampler ->

                clock?.let { clock ->

                    if (regionSampler.sampledView == clock.smallClock.view) {
@@ -212,6 +171,7 @@ constructor( 
                    mainExecutor,

                    bgExecutor,

                    regionSamplingEnabled,

                    isLockscreen = true,

                    ::updateColors

                )

                ?.apply { startRegionSampler() }
@@ -220,10 +180,11 @@ constructor( 
    }



    protected open fun createRegionSampler(

        sampledView: View?,

        sampledView: View,

        mainExecutor: Executor?,

        bgExecutor: Executor?,

        regionSamplingEnabled: Boolean,

        isLockscreen: Boolean,

        updateColors: () -> Unit

    ): RegionSampler? {

        return RegionSampler(
@@ -231,8 +192,8 @@ constructor( 
            mainExecutor,

            bgExecutor,

            regionSamplingEnabled,

            updateColors

        )

            isLockscreen,

        ) { updateColors() }

    }



    var regionSampler: RegionSampler? = null

packages/SystemUI/src/com/android/systemui/statusbar/lockscreen/LockscreenSmartspaceController.kt

+12 −15
Original line number Diff line number Diff line
@@ -17,7 +17,6 @@ 
package com.android.systemui.statusbar.lockscreen



import android.app.PendingIntent

import android.app.WallpaperManager

import android.app.smartspace.SmartspaceConfig

import android.app.smartspace.SmartspaceManager

import android.app.smartspace.SmartspaceSession
@@ -56,7 +55,6 @@ import com.android.systemui.plugins.WeatherData 
import com.android.systemui.plugins.statusbar.StatusBarStateController

import com.android.systemui.settings.UserTracker

import com.android.systemui.shared.regionsampling.RegionSampler

import com.android.systemui.shared.regionsampling.UpdateColorCallback

import com.android.systemui.smartspace.dagger.SmartspaceModule.Companion.DATE_SMARTSPACE_DATA_PLUGIN

import com.android.systemui.smartspace.dagger.SmartspaceModule.Companion.WEATHER_SMARTSPACE_DATA_PLUGIN

import com.android.systemui.statusbar.phone.KeyguardBypassController
@@ -120,7 +118,7 @@ constructor( 


    private val regionSamplingEnabled =

            featureFlags.isEnabled(Flags.REGION_SAMPLING)

    private var isContentUpdatedOnce = false

    private var isRegionSamplersCreated = false

    private var showNotifications = false

    private var showSensitiveContentForCurrentUser = false

    private var showSensitiveContentForManagedUser = false
@@ -128,7 +126,6 @@ constructor( 


    // TODO(b/202758428): refactor so that we can test color updates via region samping, similar to

    //  how we test color updates when theme changes (See testThemeChangeUpdatesTextColor).

    private val updateFun: UpdateColorCallback = { updateTextColorFromRegionSampler() }



    // TODO: Move logic into SmartspaceView

    var stateChangeListener = object : View.OnAttachStateChangeListener {
@@ -144,6 +141,9 @@ constructor( 
        override fun onViewDetachedFromWindow(v: View) {

            smartspaceViews.remove(v as SmartspaceView)



            regionSamplers[v]?.stopRegionSampler()

            regionSamplers.remove(v as SmartspaceView)



            if (smartspaceViews.isEmpty()) {

                disconnect()

            }
@@ -170,7 +170,7 @@ constructor( 


        val filteredTargets = targets.filter(::filterSmartspaceTarget)

        plugin?.onTargetsAvailable(filteredTargets)

        if (!isContentUpdatedOnce) {

        if (!isRegionSamplersCreated) {

            for (v in smartspaceViews) {

                if (regionSamplingEnabled) {

                    var regionSampler = RegionSampler(
@@ -178,15 +178,14 @@ constructor( 
                        uiExecutor,

                        bgExecutor,

                        regionSamplingEnabled,

                        updateFun

                    )

                        isLockscreen = true,

                    ) { updateTextColorFromRegionSampler() }

                    initializeTextColors(regionSampler)

                    regionSamplers[v] = regionSampler

                    regionSampler.startRegionSampler()

                }

                updateTextColorFromWallpaper()

            }

            isContentUpdatedOnce = true

            isRegionSamplersCreated = true

        }

    }
@@ -504,18 +503,16 @@ constructor( 
    }



    private fun updateTextColorFromRegionSampler() {

        smartspaceViews.forEach {

            val textColor = regionSamplers.get(it)?.currentForegroundColor()

        regionSamplers.forEach { (view, region) ->

            val textColor = region.currentForegroundColor()

            if (textColor != null) {

                it.setPrimaryTextColor(textColor)

                view.setPrimaryTextColor(textColor)

            }

        }

    }



    private fun updateTextColorFromWallpaper() {

        val wallpaperManager = WallpaperManager.getInstance(context)

        if (!regionSamplingEnabled || wallpaperManager.lockScreenWallpaperExists() ||

            regionSamplers.isEmpty()) {

        if (!regionSamplingEnabled || regionSamplers.isEmpty()) {

            val wallpaperTextColor =

                    Utils.getColorAttrDefaultColor(context, R.attr.wallpaperTextColor)

            smartspaceViews.forEach { it.setPrimaryTextColor(wallpaperTextColor) }