/* * Copyright (C) 2020 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.graphics; import static android.view.Display.DEFAULT_DISPLAY; import static com.android.launcher3.LauncherSettings.Favorites.TABLE_NAME; import static com.android.launcher3.util.Executors.MAIN_EXECUTOR; import static com.android.launcher3.util.Executors.MODEL_EXECUTOR; import android.app.WallpaperColors; import android.appwidget.AppWidgetProviderInfo; import android.content.Context; import android.database.Cursor; import android.hardware.display.DisplayManager; import android.os.Bundle; import android.os.IBinder; import android.util.Log; import android.util.Size; import android.util.SparseArray; import android.view.ContextThemeWrapper; import android.view.Display; import android.view.SurfaceControlViewHost; import android.view.SurfaceControlViewHost.SurfacePackage; import android.view.View; import android.view.animation.AccelerateDecelerateInterpolator; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.annotation.UiThread; import androidx.annotation.WorkerThread; import com.android.launcher3.DeviceProfile; import com.android.launcher3.InvariantDeviceProfile; import com.android.launcher3.LauncherAppState; import com.android.launcher3.LauncherSettings; import com.android.launcher3.Workspace; import com.android.launcher3.graphics.LauncherPreviewRenderer.PreviewContext; import com.android.launcher3.model.BaseLauncherBinder; import com.android.launcher3.model.BgDataModel; import com.android.launcher3.model.BgDataModel.Callbacks; import com.android.launcher3.model.GridSizeMigrationUtil; import com.android.launcher3.model.LoaderTask; import com.android.launcher3.model.ModelDbController; import com.android.launcher3.provider.LauncherDbUtils; import com.android.launcher3.util.ComponentKey; import com.android.launcher3.util.RunnableList; import com.android.launcher3.util.Themes; import com.android.launcher3.widget.LocalColorExtractor; import java.util.ArrayList; import java.util.Map; import java.util.concurrent.TimeUnit; /** Render preview using surface view. */ @SuppressWarnings("NewApi") public class PreviewSurfaceRenderer { private static final String TAG = "PreviewSurfaceRenderer"; private static final int FADE_IN_ANIMATION_DURATION = 200; private static final String KEY_HOST_TOKEN = "host_token"; private static final String KEY_VIEW_WIDTH = "width"; private static final String KEY_VIEW_HEIGHT = "height"; private static final String KEY_DISPLAY_ID = "display_id"; private static final String KEY_COLORS = "wallpaper_colors"; private Context mContext; private final IBinder mHostToken; private final int mWidth; private final int mHeight; private String mGridName; private final int mDisplayId; private final Display mDisplay; private final WallpaperColors mWallpaperColors; private final RunnableList mOnDestroyCallbacks = new RunnableList(); private final SurfaceControlViewHost mSurfaceControlViewHost; private boolean mDestroyed = false; private LauncherPreviewRenderer mRenderer; private boolean mHideQsb; public PreviewSurfaceRenderer(Context context, Bundle bundle) throws Exception { mContext = context; mGridName = bundle.getString("name"); bundle.remove("name"); if (mGridName == null) { mGridName = InvariantDeviceProfile.getCurrentGridName(context); } mWallpaperColors = bundle.getParcelable(KEY_COLORS); mHideQsb = bundle.getBoolean(GridCustomizationsProvider.KEY_HIDE_BOTTOM_ROW); mHostToken = bundle.getBinder(KEY_HOST_TOKEN); mWidth = bundle.getInt(KEY_VIEW_WIDTH); mHeight = bundle.getInt(KEY_VIEW_HEIGHT); mDisplayId = bundle.getInt(KEY_DISPLAY_ID); mDisplay = context.getSystemService(DisplayManager.class) .getDisplay(mDisplayId); if (mDisplay == null) { throw new IllegalArgumentException("Display ID does not match any displays."); } mSurfaceControlViewHost = MAIN_EXECUTOR.submit(() -> new SurfaceControlViewHost(mContext, context.getSystemService(DisplayManager.class) .getDisplay(DEFAULT_DISPLAY), mHostToken) ).get(5, TimeUnit.SECONDS); mOnDestroyCallbacks.add(mSurfaceControlViewHost::release); } public int getDisplayId() { return mDisplayId; } public IBinder getHostToken() { return mHostToken; } public SurfacePackage getSurfacePackage() { return mSurfaceControlViewHost.getSurfacePackage(); } /** * Destroys the preview and all associated data */ @UiThread public void destroy() { mDestroyed = true; mOnDestroyCallbacks.executeAllAndDestroy(); } /** * A function that queries for the launcher app widget span info * * @param context The context to get the content resolver from, should be related to launcher * @return A SparseArray with the app widget id being the key and the span info being the values */ @WorkerThread @Nullable public SparseArray getLoadedLauncherWidgetInfo( @NonNull final Context context) { final SparseArray widgetInfo = new SparseArray<>(); final String query = LauncherSettings.Favorites.ITEM_TYPE + " = " + LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET; ModelDbController mainController = LauncherAppState.getInstance(mContext).getModel().getModelDbController(); try (Cursor c = mainController.query(TABLE_NAME, new String[] { LauncherSettings.Favorites.APPWIDGET_ID, LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, query, null, null)) { final int appWidgetIdIndex = c.getColumnIndexOrThrow( LauncherSettings.Favorites.APPWIDGET_ID); final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX); final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY); while (c.moveToNext()) { final int appWidgetId = c.getInt(appWidgetIdIndex); final int spanX = c.getInt(spanXIndex); final int spanY = c.getInt(spanYIndex); widgetInfo.append(appWidgetId, new Size(spanX, spanY)); } } catch (Exception e) { Log.e(TAG, "Error querying for launcher widget info", e); return null; } return widgetInfo; } /** * Generates the preview in background */ public void loadAsync() { MODEL_EXECUTOR.execute(this::loadModelData); } /** * Hides the components in the bottom row. * * @param hide True to hide and false to show. */ public void hideBottomRow(boolean hide) { if (mRenderer != null) { mRenderer.hideBottomRow(hide); } } /*** * Generates a new context overriding the theme color and the display size without affecting the * main application context */ private Context getPreviewContext() { Context context = mContext.createDisplayContext(mDisplay); if (mWallpaperColors == null) { return new ContextThemeWrapper(context, Themes.getActivityThemeRes(context)); } LocalColorExtractor.newInstance(context) .applyColorsOverride(context, mWallpaperColors); return new ContextThemeWrapper(context, Themes.getActivityThemeRes(context, mWallpaperColors.getColorHints())); } @WorkerThread private void loadModelData() { final Context inflationContext = getPreviewContext(); final InvariantDeviceProfile idp = new InvariantDeviceProfile(inflationContext, mGridName); if (GridSizeMigrationUtil.needsToMigrate(inflationContext, idp)) { // Start the migration PreviewContext previewContext = new PreviewContext(inflationContext, idp); // Copy existing data to preview DB LauncherDbUtils.copyTable(LauncherAppState.getInstance(mContext) .getModel().getModelDbController().getDb(), TABLE_NAME, LauncherAppState.getInstance(previewContext) .getModel().getModelDbController().getDb(), TABLE_NAME, mContext); LauncherAppState.getInstance(previewContext) .getModel().getModelDbController().clearEmptyDbFlag(); BgDataModel bgModel = new BgDataModel(); new LoaderTask( LauncherAppState.getInstance(previewContext), /* bgAllAppsList= */ null, bgModel, LauncherAppState.getInstance(previewContext).getModel().getModelDelegate(), new BaseLauncherBinder(LauncherAppState.getInstance(previewContext), bgModel, /* bgAllAppsList= */ null, new Callbacks[0])) { @Override public void run() { DeviceProfile deviceProfile = idp.getDeviceProfile(previewContext); String query = LauncherSettings.Favorites.SCREEN + " = " + Workspace.FIRST_SCREEN_ID + " or " + LauncherSettings.Favorites.CONTAINER + " = " + LauncherSettings.Favorites.CONTAINER_HOTSEAT; if (deviceProfile.isTwoPanels) { query += " or " + LauncherSettings.Favorites.SCREEN + " = " + Workspace.SECOND_SCREEN_ID; } loadWorkspace(new ArrayList<>(), query, null, null); final SparseArray spanInfo = getLoadedLauncherWidgetInfo(previewContext.getBaseContext()); MAIN_EXECUTOR.execute(() -> { renderView(previewContext, mBgDataModel, mWidgetProvidersMap, spanInfo, idp); mOnDestroyCallbacks.add(previewContext::onDestroy); }); } }.run(); } else { LauncherAppState.getInstance(inflationContext).getModel().loadAsync(dataModel -> { if (dataModel != null) { MAIN_EXECUTOR.execute(() -> renderView(inflationContext, dataModel, null, null, idp)); } else { Log.e(TAG, "Model loading failed"); } }); } } @UiThread private void renderView(Context inflationContext, BgDataModel dataModel, Map widgetProviderInfoMap, @Nullable final SparseArray launcherWidgetSpanInfo, InvariantDeviceProfile idp) { if (mDestroyed) { return; } mRenderer = new LauncherPreviewRenderer(inflationContext, idp, mWallpaperColors, launcherWidgetSpanInfo); mRenderer.hideBottomRow(mHideQsb); View view = mRenderer.getRenderedView(dataModel, widgetProviderInfoMap); // This aspect scales the view to fit in the surface and centers it final float scale = Math.min(mWidth / (float) view.getMeasuredWidth(), mHeight / (float) view.getMeasuredHeight()); view.setScaleX(scale); view.setScaleY(scale); view.setPivotX(0); view.setPivotY(0); view.setTranslationX((mWidth - scale * view.getWidth()) / 2); view.setTranslationY((mHeight - scale * view.getHeight()) / 2); view.setAlpha(0); view.animate().alpha(1) .setInterpolator(new AccelerateDecelerateInterpolator()) .setDuration(FADE_IN_ANIMATION_DURATION) .start(); mSurfaceControlViewHost.setView(view, view.getMeasuredWidth(), view.getMeasuredHeight()); } }