Merge "Zoom-in wallpaper instead of zoom-out when unfolding" into sc-v2-dev

    private inner class TransitionListener : TransitionProgressListener {

        override fun onTransitionProgress(progress: Float) {

            wallpaperController.setUnfoldTransitionZoom(progress)

            // Fully zoomed in when fully unfolded

            wallpaperController.setUnfoldTransitionZoom(1 - progress)

        }

        override fun onTransitionFinished() {

            // Resets wallpaper zoom-out to 0f when fully folded

            // When fully unfolded it is set to 0f by onTransitionProgress

            wallpaperController.setUnfoldTransitionZoom(0f)

        }

    }

}

package com.android.systemui.unfold

import com.android.systemui.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener

class TestUnfoldTransitionProvider : UnfoldTransitionProgressProvider, TransitionProgressListener {

    private val listeners = arrayListOf<TransitionProgressListener>()

    override fun destroy() {

        listeners.clear()

    }

    override fun addCallback(listener: TransitionProgressListener) {

        listeners.add(listener)

    }

    override fun removeCallback(listener: TransitionProgressListener) {

        listeners.remove(listener)

    }

    override fun onTransitionStarted() {

        listeners.forEach { it.onTransitionStarted() }

    }

    override fun onTransitionFinished() {

        listeners.forEach { it.onTransitionFinished() }

    }

    override fun onTransitionProgress(progress: Float) {

        listeners.forEach { it.onTransitionProgress(progress) }

    }

}

package com.android.systemui.unfold

import android.testing.AndroidTestingRunner

import androidx.test.filters.SmallTest

import com.android.systemui.SysuiTestCase

import com.android.systemui.util.WallpaperController

import org.junit.Before

import org.junit.Rule

import org.junit.Test

import org.junit.runner.RunWith

import org.mockito.AdditionalMatchers.eq

import org.mockito.Mock

import org.mockito.Mockito.verify

import org.mockito.junit.MockitoJUnit

@RunWith(AndroidTestingRunner::class)

@SmallTest

class UnfoldTransitionWallpaperControllerTest : SysuiTestCase() {

    @Mock

    private lateinit var wallpaperController: WallpaperController

    private val progressProvider = TestUnfoldTransitionProvider()

    @JvmField

    @Rule

    val mockitoRule = MockitoJUnit.rule()

    private lateinit var unfoldWallpaperController: UnfoldTransitionWallpaperController

    @Before

    fun setup() {

        unfoldWallpaperController = UnfoldTransitionWallpaperController(progressProvider,

            wallpaperController)

        unfoldWallpaperController.init()

    }

    @Test

    fun onTransitionProgress_zoomsIn() {

        progressProvider.onTransitionProgress(0.8f)

        verify(wallpaperController).setUnfoldTransitionZoom(eq(0.2f, 0.001f))

    }

    @Test

    fun onTransitionFinished_resetsZoom() {

        progressProvider.onTransitionFinished()

        verify(wallpaperController).setUnfoldTransitionZoom(eq(0f, 0.001f))

    }

}