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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.quickstep;
     18 
     19 import static com.android.launcher3.anim.Interpolators.LINEAR;
     20 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
     21 import static com.android.systemui.shared.recents.utilities.Utilities.getNextFrameNumber;
     22 import static com.android.systemui.shared.recents.utilities.Utilities.getSurface;
     23 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
     24 
     25 import android.animation.ValueAnimator;
     26 import android.content.ComponentName;
     27 import android.content.Context;
     28 import android.content.pm.ApplicationInfo;
     29 import android.content.pm.PackageManager;
     30 import android.graphics.RectF;
     31 import android.os.UserHandle;
     32 import android.util.Log;
     33 import android.view.Surface;
     34 import android.view.View;
     35 
     36 import com.android.launcher3.BaseDraggingActivity;
     37 import com.android.launcher3.ItemInfo;
     38 import com.android.launcher3.Utilities;
     39 import com.android.launcher3.compat.LauncherAppsCompat;
     40 import com.android.launcher3.compat.UserManagerCompat;
     41 import com.android.launcher3.util.ComponentKey;
     42 import com.android.quickstep.util.ClipAnimationHelper;
     43 import com.android.quickstep.util.MultiValueUpdateListener;
     44 import com.android.quickstep.util.RemoteAnimationTargetSet;
     45 import com.android.quickstep.views.RecentsView;
     46 import com.android.quickstep.views.TaskView;
     47 import com.android.systemui.shared.recents.model.Task;
     48 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
     49 
     50 import java.util.List;
     51 
     52 /**
     53  * Contains helpful methods for retrieving data from {@link Task}s.
     54  */
     55 public class TaskUtils {
     56 
     57     private static final String TAG = "TaskUtils";
     58 
     59     /**
     60      * TODO: remove this once we switch to getting the icon and label from IconCache.
     61      */
     62     public static CharSequence getTitle(Context context, Task task) {
     63         LauncherAppsCompat launcherAppsCompat = LauncherAppsCompat.getInstance(context);
     64         UserManagerCompat userManagerCompat = UserManagerCompat.getInstance(context);
     65         PackageManager packageManager = context.getPackageManager();
     66         UserHandle user = UserHandle.of(task.key.userId);
     67         ApplicationInfo applicationInfo = launcherAppsCompat.getApplicationInfo(
     68             task.getTopComponent().getPackageName(), 0, user);
     69         if (applicationInfo == null) {
     70             Log.e(TAG, "Failed to get title for task " + task);
     71             return "";
     72         }
     73         return userManagerCompat.getBadgedLabelForUser(
     74             applicationInfo.loadLabel(packageManager), user);
     75     }
     76 
     77     public static ComponentKey getComponentKeyForTask(Task.TaskKey taskKey) {
     78         return new ComponentKey(taskKey.getComponent(), UserHandle.of(taskKey.userId));
     79     }
     80 
     81 
     82     /**
     83      * Try to find a TaskView that corresponds with the component of the launched view.
     84      *
     85      * If this method returns a non-null TaskView, it will be used in composeRecentsLaunchAnimation.
     86      * Otherwise, we will assume we are using a normal app transition, but it's possible that the
     87      * opening remote target (which we don't get until onAnimationStart) will resolve to a TaskView.
     88      */
     89     public static TaskView findTaskViewToLaunch(
     90             BaseDraggingActivity activity, View v, RemoteAnimationTargetCompat[] targets) {
     91         if (v instanceof TaskView) {
     92             return (TaskView) v;
     93         }
     94         RecentsView recentsView = activity.getOverviewPanel();
     95 
     96         // It's possible that the launched view can still be resolved to a visible task view, check
     97         // the task id of the opening task and see if we can find a match.
     98         if (v.getTag() instanceof ItemInfo) {
     99             ItemInfo itemInfo = (ItemInfo) v.getTag();
    100             ComponentName componentName = itemInfo.getTargetComponent();
    101             int userId = itemInfo.user.getIdentifier();
    102             if (componentName != null) {
    103                 for (int i = 0; i < recentsView.getChildCount(); i++) {
    104                     TaskView taskView = recentsView.getPageAt(i);
    105                     if (recentsView.isTaskViewVisible(taskView)) {
    106                         Task.TaskKey key = taskView.getTask().key;
    107                         if (componentName.equals(key.getComponent()) && userId == key.userId) {
    108                             return taskView;
    109                         }
    110                     }
    111                 }
    112             }
    113         }
    114 
    115         if (targets == null) {
    116             return null;
    117         }
    118         // Resolve the opening task id
    119         int openingTaskId = -1;
    120         for (RemoteAnimationTargetCompat target : targets) {
    121             if (target.mode == MODE_OPENING) {
    122                 openingTaskId = target.taskId;
    123                 break;
    124             }
    125         }
    126 
    127         // If there is no opening task id, fall back to the normal app icon launch animation
    128         if (openingTaskId == -1) {
    129             return null;
    130         }
    131 
    132         // If the opening task id is not currently visible in overview, then fall back to normal app
    133         // icon launch animation
    134         TaskView taskView = recentsView.getTaskView(openingTaskId);
    135         if (taskView == null || !recentsView.isTaskViewVisible(taskView)) {
    136             return null;
    137         }
    138         return taskView;
    139     }
    140 
    141     /**
    142      * @return Animator that controls the window of the opening targets for the recents launch
    143      * animation.
    144      */
    145     public static ValueAnimator getRecentsWindowAnimator(TaskView v, boolean skipViewChanges,
    146             RemoteAnimationTargetCompat[] targets, final ClipAnimationHelper inOutHelper) {
    147         final ValueAnimator appAnimator = ValueAnimator.ofFloat(0, 1);
    148         appAnimator.setInterpolator(TOUCH_RESPONSE_INTERPOLATOR);
    149         appAnimator.addUpdateListener(new MultiValueUpdateListener() {
    150 
    151             // Defer fading out the view until after the app window gets faded in
    152             final FloatProp mViewAlpha = new FloatProp(1f, 0f, 75, 75, LINEAR);
    153             final FloatProp mTaskAlpha = new FloatProp(0f, 1f, 0, 75, LINEAR);
    154 
    155             final RemoteAnimationTargetSet mTargetSet;
    156 
    157             final RectF mThumbnailRect;
    158             private Surface mSurface;
    159             private long mFrameNumber;
    160 
    161             {
    162                 mTargetSet = new RemoteAnimationTargetSet(targets, MODE_OPENING);
    163                 inOutHelper.setTaskTransformCallback((t, app) -> {
    164                     t.setAlpha(app.leash, mTaskAlpha.value);
    165 
    166                     if (!skipViewChanges) {
    167                         t.deferTransactionUntil(app.leash, mSurface, mFrameNumber);
    168                     }
    169                 });
    170 
    171                 inOutHelper.prepareAnimation(true /* isOpening */);
    172                 inOutHelper.fromTaskThumbnailView(v.getThumbnail(), (RecentsView) v.getParent(),
    173                         mTargetSet.apps.length == 0 ? null : mTargetSet.apps[0]);
    174 
    175                 mThumbnailRect = new RectF(inOutHelper.getTargetRect());
    176                 mThumbnailRect.offset(-v.getTranslationX(), -v.getTranslationY());
    177                 Utilities.scaleRectFAboutCenter(mThumbnailRect, 1 / v.getScaleX());
    178             }
    179 
    180             @Override
    181             public void onUpdate(float percent) {
    182                 mSurface = getSurface(v);
    183                 mFrameNumber = mSurface != null ? getNextFrameNumber(mSurface) : -1;
    184                 if (mFrameNumber == -1) {
    185                     // Booo, not cool! Our surface got destroyed, so no reason to animate anything.
    186                     Log.w(TAG, "Failed to animate, surface got destroyed.");
    187                     return;
    188                 }
    189 
    190                 RectF taskBounds = inOutHelper.applyTransform(mTargetSet, 1 - percent);
    191                 if (!skipViewChanges) {
    192                     float scale = taskBounds.width() / mThumbnailRect.width();
    193                     v.setScaleX(scale);
    194                     v.setScaleY(scale);
    195                     v.setTranslationX(taskBounds.centerX() - mThumbnailRect.centerX());
    196                     v.setTranslationY(taskBounds.centerY() - mThumbnailRect.centerY());
    197                     v.setAlpha(mViewAlpha.value);
    198                 }
    199             }
    200         });
    201         return appAnimator;
    202     }
    203 
    204     public static boolean taskIsATargetWithMode(RemoteAnimationTargetCompat[] targets,
    205             int taskId, int mode) {
    206         for (RemoteAnimationTargetCompat target : targets) {
    207             if (target.mode == mode && target.taskId == taskId) {
    208                 return true;
    209             }
    210         }
    211         return false;
    212     }
    213 
    214     public static boolean checkCurrentOrManagedUserId(int currentUserId, Context context) {
    215         if (currentUserId == UserHandle.myUserId()) {
    216             return true;
    217         }
    218         List<UserHandle> allUsers = UserManagerCompat.getInstance(context).getUserProfiles();
    219         for (int i = allUsers.size() - 1; i >= 0; i--) {
    220             if (currentUserId == allUsers.get(i).getIdentifier()) {
    221                 return true;
    222             }
    223         }
    224         return false;
    225     }
    226 }
    227