| /** |
| * Copyright (C) 2019 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.systemui.shared.system; |
| |
| import android.graphics.Region; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.view.ISystemGestureExclusionListener; |
| import android.view.WindowManagerGlobal; |
| |
| /** |
| * Utility class to listen for exclusion rect changes. |
| */ |
| public abstract class SystemGestureExclusionListenerCompat { |
| |
| private static final String TAG = "SGEListenerCompat"; |
| |
| private final int mDisplayId; |
| |
| private ISystemGestureExclusionListener mGestureExclusionListener = |
| new ISystemGestureExclusionListener.Stub() { |
| @Override |
| public void onSystemGestureExclusionChanged(int displayId, |
| Region systemGestureExclusion) { |
| if (displayId == mDisplayId) { |
| onExclusionChanged(systemGestureExclusion); |
| } |
| } |
| }; |
| private boolean mRegistered; |
| |
| public SystemGestureExclusionListenerCompat(int displayId) { |
| mDisplayId = displayId; |
| } |
| |
| /** |
| * Called when the exclusion region has changed |
| */ |
| public abstract void onExclusionChanged(Region systemGestureExclusion); |
| |
| /** |
| * Registers the listener for getting exclusion rect changes. |
| */ |
| public void register() { |
| if (!mRegistered) { |
| try { |
| WindowManagerGlobal.getWindowManagerService() |
| .registerSystemGestureExclusionListener( |
| mGestureExclusionListener, mDisplayId); |
| mRegistered = true; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Failed to register window manager callbacks", e); |
| } |
| } |
| } |
| |
| /** |
| * Unregisters the receiver if previously registered |
| */ |
| public void unregister() { |
| if (mRegistered) { |
| try { |
| WindowManagerGlobal.getWindowManagerService() |
| .unregisterSystemGestureExclusionListener( |
| mGestureExclusionListener, mDisplayId); |
| mRegistered = false; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Failed to unregister window manager callbacks", e); |
| } |
| } |
| } |
| } |