Pass PictureInPictureParams in TaskInfo.

This way TaskOrganizerImplementations can use the parameters from
taskAppeared. We also wire up taskInfoChanged.

Bug: 146594635
Bug: 139371701
Test: TaskOrganizerTests
Change-Id: I5371af16177ebdf6e2187beb7184efd499c8f36d
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index a54f5d4..9b968cb 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -7692,4 +7692,9 @@
         }
         win.getAnimationFrames(outFrame, outInsets, outStableInsets, outSurfaceInsets);
     }
+
+    void setPictureInPictureParams(PictureInPictureParams p) {
+        pictureInPictureArgs.copyOnlySet(p);
+        getTask().getRootTask().setPictureInPictureParams(p);
+    }
 }
diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 5f3e3a3..80162fb 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -4153,7 +4153,7 @@
                             return;
                         }
                         // Only update the saved args from the args that are set
-                        r.pictureInPictureArgs.copyOnlySet(params);
+                        r.setPictureInPictureParams(params);
                         final float aspectRatio = r.pictureInPictureArgs.getAspectRatio();
                         final List<RemoteAction> actions = r.pictureInPictureArgs.getActions();
                         // Adjust the source bounds by the insets for the transition down
@@ -4201,7 +4201,7 @@
                         "setPictureInPictureParams", token, params);
 
                 // Only update the saved args from the args that are set
-                r.pictureInPictureArgs.copyOnlySet(params);
+                r.setPictureInPictureParams(params);
                 if (r.inPinnedWindowingMode()) {
                     // If the activity is already in picture-in-picture, update the pinned stack now
                     // if it is not already expanding to fullscreen. Otherwise, the arguments will
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index b1db9d7..028274a 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -99,6 +99,7 @@
 import android.app.ActivityOptions;
 import android.app.ActivityTaskManager;
 import android.app.AppGlobals;
+import android.app.PictureInPictureParams;
 import android.app.TaskInfo;
 import android.app.WindowConfiguration;
 import android.content.ComponentName;
@@ -461,6 +462,11 @@
      */
     ITaskOrganizer mTaskOrganizer;
 
+    /**
+     * Last Picture-in-Picture params applicable to the task. Updated when the app
+     * enters Picture-in-Picture or when setPictureInPictureParams is called.
+     */
+    PictureInPictureParams mPictureInPictureParams = new PictureInPictureParams.Builder().build();
 
     /**
      * Don't use constructor directly. Use {@link #create(ActivityTaskManagerService, int,
@@ -3199,6 +3205,12 @@
         //                    order changes.
         final Task top = getTopMostTask();
         info.resizeMode = top != null ? top.mResizeMode : mResizeMode;
+
+        if (mPictureInPictureParams.empty()) {
+            info.pictureInPictureParams = null;
+        } else {
+            info.pictureInPictureParams = mPictureInPictureParams;
+        }
     }
 
     /**
@@ -3929,4 +3941,10 @@
     void onWindowFocusChanged(boolean hasFocus) {
         updateShadowsRadius(hasFocus, getPendingTransaction());
     }
+
+    void setPictureInPictureParams(PictureInPictureParams p) {
+        mPictureInPictureParams.copyOnlySet(p);
+        mAtmService.mTaskOrganizerController.dispatchTaskInfoChanged(
+                this, true /* force */);
+    }
 }