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Commit 50820e1f authored by Stevie Kideckel's avatar Stevie Kideckel Committed by Automerger Merge Worker
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Merge "Load widget preview images before adding the rows to the adapter" into sc-dev am: dd19a247 

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14965044

Change-Id: If6b6e437f558922aa0f047c4ce01bb424a0045ae
parents c42dd630 dd19a247

robolectric_tests/src/com/android/launcher3/widget/CachingWidgetPreviewLoaderTest.java

0 → 100644
+409 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2021 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.launcher3.widget;



import static com.google.common.truth.Truth.assertThat;



import static org.mockito.ArgumentMatchers.any;

import static org.mockito.ArgumentMatchers.eq;

import static org.mockito.Mockito.reset;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.verifyZeroInteractions;

import static org.mockito.Mockito.when;



import android.content.ComponentName;

import android.graphics.Bitmap;

import android.os.CancellationSignal;

import android.os.UserHandle;

import android.util.Size;



import com.android.launcher3.DeviceProfile;

import com.android.launcher3.InvariantDeviceProfile;

import com.android.launcher3.icons.IconCache;

import com.android.launcher3.model.WidgetItem;

import com.android.launcher3.testing.TestActivity;

import com.android.launcher3.widget.WidgetPreviewLoader.WidgetPreviewLoadedCallback;



import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.ArgumentCaptor;

import org.mockito.Captor;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.Robolectric;

import org.robolectric.RobolectricTestRunner;



import java.util.Arrays;

import java.util.Collections;



@RunWith(RobolectricTestRunner.class)

public class CachingWidgetPreviewLoaderTest {

    private static final Size SIZE_10_10 = new Size(10, 10);

    private static final Size SIZE_20_20 = new Size(20, 20);

    private static final String TEST_PACKAGE = "com.example.test";

    private static final ComponentName TEST_PROVIDER =

            new ComponentName(TEST_PACKAGE, ".WidgetProvider");

    private static final ComponentName TEST_PROVIDER2 =

            new ComponentName(TEST_PACKAGE, ".WidgetProvider2");

    private static final Bitmap BITMAP = Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888);

    private static final Bitmap BITMAP2 = Bitmap.createBitmap(20, 20, Bitmap.Config.ARGB_8888);





    @Mock private CancellationSignal mCancellationSignal;

    @Mock private WidgetPreviewLoader mDelegate;

    @Mock private IconCache mIconCache;

    @Mock private DeviceProfile mDeviceProfile;

    @Mock private LauncherAppWidgetProviderInfo mProviderInfo;

    @Mock private LauncherAppWidgetProviderInfo mProviderInfo2;

    @Mock private WidgetPreviewLoadedCallback mPreviewLoadedCallback;

    @Mock private WidgetPreviewLoadedCallback mPreviewLoadedCallback2;

    @Captor private ArgumentCaptor<WidgetPreviewLoadedCallback> mCallbackCaptor;



    private TestActivity mTestActivity;

    private CachingWidgetPreviewLoader mLoader;

    private WidgetItem mWidgetItem;

    private WidgetItem mWidgetItem2;



    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mLoader = new CachingWidgetPreviewLoader(mDelegate);



        mTestActivity = Robolectric.buildActivity(TestActivity.class).setup().get();

        mTestActivity.setDeviceProfile(mDeviceProfile);



        when(mDelegate.loadPreview(any(), any(), any(), any())).thenReturn(mCancellationSignal);



        mProviderInfo.provider = TEST_PROVIDER;

        when(mProviderInfo.getProfile()).thenReturn(new UserHandle(0));



        mProviderInfo2.provider = TEST_PROVIDER2;

        when(mProviderInfo2.getProfile()).thenReturn(new UserHandle(0));



        InvariantDeviceProfile testProfile = new InvariantDeviceProfile();

        testProfile.numRows = 5;

        testProfile.numColumns = 5;



        mWidgetItem = new WidgetItem(mProviderInfo, testProfile, mIconCache);

        mWidgetItem2 = new WidgetItem(mProviderInfo2, testProfile, mIconCache);

    }



    @Test

    public void getPreview_notInCache_shouldReturnNull() {

        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isNull();

    }



    @Test

    public void getPreview_notInCache_shouldNotCallDelegate() {

        mLoader.getPreview(mWidgetItem, SIZE_10_10);



        verifyZeroInteractions(mDelegate);

    }



    @Test

    public void getPreview_inCache_shouldReturnCachedBitmap() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isEqualTo(BITMAP);

    }



    @Test

    public void getPreview_otherSizeInCache_shouldReturnNull() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        assertThat(mLoader.getPreview(mWidgetItem, SIZE_20_20)).isNull();

    }



    @Test

    public void getPreview_otherItemInCache_shouldReturnNull() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        assertThat(mLoader.getPreview(mWidgetItem2, SIZE_10_10)).isNull();

    }



    @Test

    public void getPreview_shouldStoreMultipleSizesPerItem() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem, SIZE_20_20, BITMAP2);



        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isEqualTo(BITMAP);

        assertThat(mLoader.getPreview(mWidgetItem, SIZE_20_20)).isEqualTo(BITMAP2);

    }



    @Test

    public void loadPreview_notInCache_shouldStartLoading() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);



        verify(mDelegate).loadPreview(eq(mTestActivity), eq(mWidgetItem), eq(SIZE_10_10), any());

        verifyZeroInteractions(mPreviewLoadedCallback);

    }



    @Test

    public void loadPreview_thenLoaded_shouldCallBack() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        verify(mDelegate).loadPreview(any(), any(), any(), mCallbackCaptor.capture());

        WidgetPreviewLoadedCallback loaderCallback = mCallbackCaptor.getValue();



        loaderCallback.onPreviewLoaded(BITMAP);



        verify(mPreviewLoadedCallback).onPreviewLoaded(BITMAP);

    }



    @Test

    public void loadPreview_thenCancelled_shouldCancelDelegateRequest() {

        CancellationSignal cancellationSignal =

                mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);



        cancellationSignal.cancel();



        verify(mCancellationSignal).cancel();

        verifyZeroInteractions(mPreviewLoadedCallback);

        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isNull();

    }



    @Test

    public void loadPreview_thenCancelled_otherCallListening_shouldNotCancelDelegateRequest() {

        CancellationSignal cancellationSignal1 =

                mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback2);



        cancellationSignal1.cancel();



        verifyZeroInteractions(mCancellationSignal);

    }



    @Test

    public void loadPreview_thenCancelled_otherCallListening_loaded_shouldCallBackToNonCancelled() {

        CancellationSignal cancellationSignal1 =

                mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback2);

        verify(mDelegate).loadPreview(any(), any(), any(), mCallbackCaptor.capture());

        WidgetPreviewLoadedCallback loaderCallback = mCallbackCaptor.getValue();



        cancellationSignal1.cancel();

        loaderCallback.onPreviewLoaded(BITMAP);



        verifyZeroInteractions(mPreviewLoadedCallback);

        verify(mPreviewLoadedCallback2).onPreviewLoaded(BITMAP);

        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isEqualTo(BITMAP);

    }



    @Test

    public void loadPreview_thenCancelled_bothCallsCancelled_shouldCancelDelegateRequest() {

        CancellationSignal cancellationSignal1 =

                mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        CancellationSignal cancellationSignal2 =

                mLoader.loadPreview(

                        mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback2);



        cancellationSignal1.cancel();

        cancellationSignal2.cancel();



        verify(mCancellationSignal).cancel();

        verifyZeroInteractions(mPreviewLoadedCallback);

        verifyZeroInteractions(mPreviewLoadedCallback2);

        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isNull();

    }



    @Test

    public void loadPreview_multipleCallbacks_shouldOnlyCallDelegateOnce() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback2);



        verify(mDelegate).loadPreview(any(), any(), any(), any());

    }



    @Test

    public void loadPreview_multipleCallbacks_shouldForwardResultToEachCallback() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback2);



        verify(mDelegate).loadPreview(any(), any(), any(), mCallbackCaptor.capture());

        WidgetPreviewLoadedCallback loaderCallback = mCallbackCaptor.getValue();



        loaderCallback.onPreviewLoaded(BITMAP);



        verify(mPreviewLoadedCallback).onPreviewLoaded(BITMAP);

        verify(mPreviewLoadedCallback2).onPreviewLoaded(BITMAP);

    }



    @Test

    public void loadPreview_inCache_shouldCallBackImmediately() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        reset(mDelegate);



        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);



        verify(mPreviewLoadedCallback).onPreviewLoaded(BITMAP);

        verifyZeroInteractions(mDelegate);

    }



    @Test

    public void loadPreview_thenLoaded_thenCancelled_shouldNotRemovePreviewFromCache() {

        CancellationSignal cancellationSignal =

                mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);

        verify(mDelegate).loadPreview(any(), any(), any(), mCallbackCaptor.capture());

        WidgetPreviewLoadedCallback loaderCallback = mCallbackCaptor.getValue();

        loaderCallback.onPreviewLoaded(BITMAP);



        cancellationSignal.cancel();



        assertThat(mLoader.getPreview(mWidgetItem, SIZE_10_10)).isEqualTo(BITMAP);

    }



    @Test

    public void isPreviewLoaded_notLoaded_shouldReturnFalse() {

        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void isPreviewLoaded_otherSizeLoaded_shouldReturnFalse() {

        loadPreviewIntoCache(mWidgetItem, SIZE_20_20, BITMAP);



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void isPreviewLoaded_otherItemLoaded_shouldReturnFalse() {

        loadPreviewIntoCache(mWidgetItem2, SIZE_10_10, BITMAP);



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void isPreviewLoaded_loaded_shouldReturnTrue() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isTrue();

    }



    @Test

    public void clearPreviews_notInCache_shouldBeNoOp() {

        mLoader.clearPreviews(Collections.singletonList(mWidgetItem));



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void clearPreviews_inCache_shouldRemovePreview() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        mLoader.clearPreviews(Collections.singletonList(mWidgetItem));



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void clearPreviews_inCache_multipleSizes_shouldRemoveAllSizes() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem, SIZE_20_20, BITMAP);



        mLoader.clearPreviews(Collections.singletonList(mWidgetItem));



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_20_20)).isFalse();

    }



    @Test

    public void clearPreviews_inCache_otherItems_shouldOnlyRemoveSpecifiedItems() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem2, SIZE_10_10, BITMAP);



        mLoader.clearPreviews(Collections.singletonList(mWidgetItem));



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem2, SIZE_10_10)).isTrue();

    }



    @Test

    public void clearPreviews_inCache_otherItems_shouldRemoveAllSpecifiedItems() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem2, SIZE_10_10, BITMAP);



        mLoader.clearPreviews(Arrays.asList(mWidgetItem, mWidgetItem2));



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem2, SIZE_10_10)).isFalse();

    }



    @Test

    public void clearPreviews_loading_shouldCancelLoad() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);



        mLoader.clearPreviews(Collections.singletonList(mWidgetItem));



        verify(mCancellationSignal).cancel();

    }



    @Test

    public void clearAll_cacheEmpty_shouldBeNoOp() {

        mLoader.clearAll();



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void clearAll_inCache_shouldRemovePreview() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);



        mLoader.clearAll();



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

    }



    @Test

    public void clearAll_inCache_multipleSizes_shouldRemoveAllSizes() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem, SIZE_20_20, BITMAP);



        mLoader.clearAll();



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_20_20)).isFalse();

    }



    @Test

    public void clearAll_inCache_multipleItems_shouldRemoveAll() {

        loadPreviewIntoCache(mWidgetItem, SIZE_10_10, BITMAP);

        loadPreviewIntoCache(mWidgetItem, SIZE_20_20, BITMAP);

        loadPreviewIntoCache(mWidgetItem2, SIZE_20_20, BITMAP);



        mLoader.clearAll();



        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_10_10)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem, SIZE_20_20)).isFalse();

        assertThat(mLoader.isPreviewLoaded(mWidgetItem2, SIZE_20_20)).isFalse();

    }



    @Test

    public void clearAll_loading_shouldCancelLoad() {

        mLoader.loadPreview(mTestActivity, mWidgetItem, SIZE_10_10, mPreviewLoadedCallback);



        mLoader.clearAll();



        verify(mCancellationSignal).cancel();

    }



    private void loadPreviewIntoCache(WidgetItem widgetItem, Size size, Bitmap bitmap) {

        reset(mDelegate);

        mLoader.loadPreview(mTestActivity, widgetItem, size, ignored -> {});

        verify(mDelegate).loadPreview(any(), any(), any(), mCallbackCaptor.capture());

        WidgetPreviewLoadedCallback loaderCallback = mCallbackCaptor.getValue();



        loaderCallback.onPreviewLoaded(bitmap);

    }

}

robolectric_tests/src/com/android/launcher3/widget/picker/WidgetsDiffReporterTest.java

+3 −4
Original line number Diff line number Diff line
@@ -207,10 +207,9 @@ public final class WidgetsDiffReporterTest { 
        // GIVEN the current list has app headers [A, B, E content].

        ArrayList<WidgetsListBaseEntry> currentList = new ArrayList<>(

                List.of(mHeaderA, mHeaderB, mContentE));

        // GIVEN the new list has app headers [A, B, E content].

        List<WidgetsListBaseEntry> newList = List.of(mHeaderA, mHeaderB, mContentE);

        // GIVEN the user has interacted with B.

        mHeaderB.setIsWidgetListShown(true);

        // GIVEN the new list has app headers [A, B, E content] and the user has interacted with B.

        List<WidgetsListBaseEntry> newList =

                List.of(mHeaderA, mHeaderB.withWidgetListShown(), mContentE);



        // WHEN computing the list difference.

        mWidgetsDiffReporter.process(currentList, newList, COMPARATOR);

robolectric_tests/src/com/android/launcher3/widget/picker/WidgetsListAdapterTest.java

+2 −2
Original line number Diff line number Diff line
@@ -33,13 +33,13 @@ import android.view.LayoutInflater; 
import androidx.recyclerview.widget.RecyclerView;



import com.android.launcher3.InvariantDeviceProfile;

import com.android.launcher3.WidgetPreviewLoader;

import com.android.launcher3.icons.BitmapInfo;

import com.android.launcher3.icons.ComponentWithLabel;

import com.android.launcher3.icons.IconCache;

import com.android.launcher3.model.WidgetItem;

import com.android.launcher3.model.data.PackageItemInfo;

import com.android.launcher3.util.PackageUserKey;

import com.android.launcher3.widget.DatabaseWidgetPreviewLoader;

import com.android.launcher3.widget.LauncherAppWidgetProviderInfo;

import com.android.launcher3.widget.model.WidgetsListBaseEntry;

import com.android.launcher3.widget.model.WidgetsListContentEntry;
@@ -64,7 +64,7 @@ public final class WidgetsListAdapterTest { 
    private static final String TEST_PACKAGE_PLACEHOLDER = "com.google.test";



    @Mock private LayoutInflater mMockLayoutInflater;

    @Mock private WidgetPreviewLoader mMockWidgetCache;

    @Mock private DatabaseWidgetPreviewLoader mMockWidgetCache;

    @Mock private RecyclerView.AdapterDataObserver mListener;

    @Mock private IconCache mIconCache;

robolectric_tests/src/com/android/launcher3/widget/picker/WidgetsListHeaderViewHolderBinderTest.java

+2 −2
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ import android.widget.TextView; 
import com.android.launcher3.DeviceProfile;

import com.android.launcher3.InvariantDeviceProfile;

import com.android.launcher3.R;

import com.android.launcher3.WidgetPreviewLoader;

import com.android.launcher3.icons.BitmapInfo;

import com.android.launcher3.icons.ComponentWithLabel;

import com.android.launcher3.icons.IconCache;
@@ -42,6 +41,7 @@ import com.android.launcher3.model.WidgetItem; 
import com.android.launcher3.model.data.PackageItemInfo;

import com.android.launcher3.testing.TestActivity;

import com.android.launcher3.util.PackageUserKey;

import com.android.launcher3.widget.DatabaseWidgetPreviewLoader;

import com.android.launcher3.widget.LauncherAppWidgetProviderInfo;

import com.android.launcher3.widget.model.WidgetsListHeaderEntry;
@@ -79,7 +79,7 @@ public final class WidgetsListHeaderViewHolderBinderTest { 
    @Mock

    private DeviceProfile mDeviceProfile;

    @Mock

    private WidgetPreviewLoader mWidgetPreviewLoader;

    private DatabaseWidgetPreviewLoader mWidgetPreviewLoader;

    @Mock

    private OnHeaderClickListener mOnHeaderClickListener;

robolectric_tests/src/com/android/launcher3/widget/picker/WidgetsListSearchHeaderViewHolderBinderTest.java

+2 −2
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ import android.widget.TextView; 
import com.android.launcher3.DeviceProfile;

import com.android.launcher3.InvariantDeviceProfile;

import com.android.launcher3.R;

import com.android.launcher3.WidgetPreviewLoader;

import com.android.launcher3.icons.BitmapInfo;

import com.android.launcher3.icons.ComponentWithLabel;

import com.android.launcher3.icons.IconCache;
@@ -42,6 +41,7 @@ import com.android.launcher3.model.WidgetItem; 
import com.android.launcher3.model.data.PackageItemInfo;

import com.android.launcher3.testing.TestActivity;

import com.android.launcher3.util.PackageUserKey;

import com.android.launcher3.widget.DatabaseWidgetPreviewLoader;

import com.android.launcher3.widget.LauncherAppWidgetProviderInfo;

import com.android.launcher3.widget.model.WidgetsListSearchHeaderEntry;
@@ -79,7 +79,7 @@ public final class WidgetsListSearchHeaderViewHolderBinderTest { 
    @Mock

    private DeviceProfile mDeviceProfile;

    @Mock

    private WidgetPreviewLoader mWidgetPreviewLoader;

    private DatabaseWidgetPreviewLoader mWidgetPreviewLoader;

    @Mock

    private OnHeaderClickListener mOnHeaderClickListener;