Add animation runner for alt-tab desktop app launch

Create a remote transition supporting alt-tab app-launches (app launches
caused by a user using alt-tab to select a minimized app) and any
minimization caused by hitting the window limit during such an app
launch.

Test: manual, and WindowAnimatorTest
Bug: 349791584
Flag: com.android.window.flags.enable_desktop_app_launch_alttab_transitions
Change-Id: I6474fff351f3d7681ca25cd7331e4955e3d1c6e0

quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchViewController.java

@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.taskbar;
 
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.animation.Animator;
@@ -31,6 +32,7 @@ import androidx.annotation.Nullable;
 import com.android.internal.jank.Cuj;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorListeners;
+import com.android.launcher3.desktop.DesktopAppLaunchTransition;
 import com.android.launcher3.taskbar.overlay.TaskbarOverlayContext;
 import com.android.launcher3.taskbar.overlay.TaskbarOverlayDragLayer;
 import com.android.launcher3.views.BaseDragLayer;
@@ -41,6 +43,7 @@ import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 import com.android.systemui.shared.system.QuickStepContract;
+import com.android.window.flags.Flags;
 
 import java.io.PrintWriter;
 import java.util.List;
@@ -181,7 +184,7 @@ public class KeyboardQuickSwitchViewController {
         Runnable onFinishCallback = () -> InteractionJankMonitorWrapper.end(
                 Cuj.CUJ_LAUNCHER_KEYBOARD_QUICK_SWITCH_APP_LAUNCH);
         TaskbarActivityContext context = mControllers.taskbarActivityContext;
-        RemoteTransition remoteTransition = new RemoteTransition(new SlideInRemoteTransition(
+        final RemoteTransition slideInTransition = new RemoteTransition(new SlideInRemoteTransition(
                 Utilities.isRtl(mControllers.taskbarActivityContext.getResources()),
                 context.getDeviceProfile().overviewPageSpacing,
                 QuickStepContract.getWindowCornerRadius(context),
@@ -195,7 +198,7 @@ public class KeyboardQuickSwitchViewController {
                     SystemUiProxy.INSTANCE.get(mKeyboardQuickSwitchView.getContext())
                             .showDesktopApps(
                                     mKeyboardQuickSwitchView.getDisplay().getDisplayId(),
-                                    remoteTransition));
+                                    slideInTransition));
             return -1;
         }
         // Even with a valid index, this can be null if the user tries to quick switch before the
@@ -208,6 +211,13 @@ public class KeyboardQuickSwitchViewController {
             // Ignore attempts to run the selected task if it is already running.
             return -1;
         }
+        RemoteTransition remoteTransition = slideInTransition;
+        if (mOnDesktop && task.task1.isMinimized
+                && Flags.enableDesktopAppLaunchAlttabTransitions()) {
+            // This app is being unminimized - use our own transition runner.
+            remoteTransition = new RemoteTransition(
+                    new DesktopAppLaunchTransition(context, MAIN_EXECUTOR));
+        }
         mControllers.taskbarActivityContext.handleGroupTaskLaunch(
                 task,
                 remoteTransition,