| /* |
| * Copyright (C) 2021 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.screenshot; |
| |
| import static com.android.systemui.screenshot.LogConfig.DEBUG_DISMISS; |
| |
| import android.content.Context; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.util.Log; |
| import android.view.accessibility.AccessibilityManager; |
| |
| import javax.inject.Inject; |
| |
| /** |
| * Starts a configurable runnable on timeout. Can be cancelled. Used for automatically dismissing |
| * floating overlays. |
| */ |
| public class TimeoutHandler extends Handler { |
| private static final String TAG = "TimeoutHandler"; |
| |
| private static final int MESSAGE_CORNER_TIMEOUT = 2; |
| private static final int DEFAULT_TIMEOUT_MILLIS = 6000; |
| |
| private final Context mContext; |
| |
| private Runnable mOnTimeout; |
| private int mDefaultTimeout = DEFAULT_TIMEOUT_MILLIS; |
| |
| @Inject |
| public TimeoutHandler(Context context) { |
| super(Looper.getMainLooper()); |
| mContext = context; |
| mOnTimeout = () -> { |
| }; |
| } |
| |
| public void setOnTimeoutRunnable(Runnable onTimeout) { |
| mOnTimeout = onTimeout; |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MESSAGE_CORNER_TIMEOUT: |
| mOnTimeout.run(); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * Set the default timeout (if not overridden by accessibility) |
| */ |
| public void setDefaultTimeoutMillis(int timeout) { |
| mDefaultTimeout = timeout; |
| } |
| |
| int getDefaultTimeoutMillis() { |
| return mDefaultTimeout; |
| } |
| |
| /** |
| * Cancel the current timeout, if any. To reset the delayed runnable use resetTimeout instead. |
| */ |
| public void cancelTimeout() { |
| if (DEBUG_DISMISS) { |
| Log.d(TAG, "cancel timeout"); |
| } |
| removeMessages(MESSAGE_CORNER_TIMEOUT); |
| } |
| |
| /** |
| * Reset the timeout. |
| */ |
| public void resetTimeout() { |
| cancelTimeout(); |
| |
| AccessibilityManager accessibilityManager = (AccessibilityManager) |
| mContext.getSystemService(Context.ACCESSIBILITY_SERVICE); |
| long timeoutMs = accessibilityManager.getRecommendedTimeoutMillis( |
| mDefaultTimeout, |
| AccessibilityManager.FLAG_CONTENT_CONTROLS); |
| |
| sendMessageDelayed(obtainMessage(MESSAGE_CORNER_TIMEOUT), timeoutMs); |
| if (DEBUG_DISMISS) { |
| Log.d(TAG, "dismiss timeout: " + timeoutMs + " ms"); |
| } |
| } |
| } |