Merge "Notify task description change to system UI (4/N)"

2 files changed, 21 insertions, 0 deletions

diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java
index 6186589ab086..5f92b2811807 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java
@@ -89,6 +89,14 @@ public abstract class TaskStackChangeListener {
         onTaskMovedToFront(taskInfo.taskId);
     }
 
+    /**
+     * Called when a task’s description is changed due to an activity calling
+     * ActivityManagerService.setTaskDescription
+     *
+     * @param taskInfo info about the task which changed, with {@link TaskInfo#taskDescription}
+     */
+    public void onTaskDescriptionChanged(RunningTaskInfo taskInfo) { }
+
     public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { }
     public void onSizeCompatModeActivityChanged(int displayId, IBinder activityToken) { }
 
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListeners.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListeners.java
index 8d823ca34b39..074ef53aa57c 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListeners.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListeners.java
@@ -230,6 +230,11 @@ public class TaskStackChangeListeners extends TaskStackListener {
                 .sendToTarget();
     }
 
+    @Override
+    public void onTaskDescriptionChanged(RunningTaskInfo taskInfo) {
+        mHandler.obtainMessage(H.ON_TASK_DESCRIPTION_CHANGED, taskInfo).sendToTarget();
+    }
+
     private final class H extends Handler {
         private static final int ON_TASK_STACK_CHANGED = 1;
         private static final int ON_TASK_SNAPSHOT_CHANGED = 2;
@@ -254,6 +259,7 @@ public class TaskStackChangeListeners extends TaskStackListener {
         private static final int ON_TASK_LIST_UPDATED = 21;
         private static final int ON_SINGLE_TASK_DISPLAY_EMPTY = 22;
         private static final int ON_TASK_LIST_FROZEN_UNFROZEN = 23;
+        private static final int ON_TASK_DESCRIPTION_CHANGED = 24;
 
 
         public H(Looper looper) {
@@ -421,6 +427,13 @@ public class TaskStackChangeListeners extends TaskStackListener {
                         }
                         break;
                     }
+                    case ON_TASK_DESCRIPTION_CHANGED: {
+                        final RunningTaskInfo info = (RunningTaskInfo) msg.obj;
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onTaskDescriptionChanged(info);
+                        }
+                        break;
+                    }
                 }
             }
         }