| /* |
| * Copyright (C) 2020 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.toast; |
| |
| import android.annotation.MainThread; |
| import android.annotation.Nullable; |
| import android.app.INotificationManager; |
| import android.app.ITransientNotificationCallback; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.os.IBinder; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.util.Log; |
| import android.view.View; |
| import android.view.accessibility.IAccessibilityManager; |
| import android.widget.ToastPresenter; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.systemui.SystemUI; |
| import com.android.systemui.statusbar.CommandQueue; |
| |
| import java.util.Objects; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| /** |
| * Controls display of text toasts. |
| */ |
| @Singleton |
| public class ToastUI extends SystemUI implements CommandQueue.Callbacks { |
| private static final String TAG = "ToastUI"; |
| |
| private final CommandQueue mCommandQueue; |
| private final INotificationManager mNotificationManager; |
| private final IAccessibilityManager mAccessibilityManager; |
| private final int mGravity; |
| private final int mY; |
| @Nullable private ToastPresenter mPresenter; |
| @Nullable private ITransientNotificationCallback mCallback; |
| |
| @Inject |
| public ToastUI(Context context, CommandQueue commandQueue) { |
| this(context, commandQueue, |
| INotificationManager.Stub.asInterface( |
| ServiceManager.getService(Context.NOTIFICATION_SERVICE)), |
| IAccessibilityManager.Stub.asInterface( |
| ServiceManager.getService(Context.ACCESSIBILITY_SERVICE))); |
| } |
| |
| @VisibleForTesting |
| ToastUI(Context context, CommandQueue commandQueue, INotificationManager notificationManager, |
| @Nullable IAccessibilityManager accessibilityManager) { |
| super(context); |
| mCommandQueue = commandQueue; |
| mNotificationManager = notificationManager; |
| mAccessibilityManager = accessibilityManager; |
| Resources resources = mContext.getResources(); |
| mGravity = resources.getInteger(R.integer.config_toastDefaultGravity); |
| mY = resources.getDimensionPixelSize(R.dimen.toast_y_offset); |
| } |
| |
| @Override |
| public void start() { |
| mCommandQueue.addCallback(this); |
| } |
| |
| @Override |
| @MainThread |
| public void showToast(int uid, String packageName, IBinder token, CharSequence text, |
| IBinder windowToken, int duration, @Nullable ITransientNotificationCallback callback) { |
| if (mPresenter != null) { |
| hideCurrentToast(); |
| } |
| Context context = mContext.createContextAsUser(UserHandle.getUserHandleForUid(uid), 0); |
| View view = ToastPresenter.getTextToastView(context, text); |
| mCallback = callback; |
| mPresenter = new ToastPresenter(context, mAccessibilityManager, mNotificationManager, |
| packageName); |
| mPresenter.show(view, token, windowToken, duration, mGravity, 0, mY, 0, 0, mCallback); |
| } |
| |
| @Override |
| @MainThread |
| public void hideToast(String packageName, IBinder token) { |
| if (mPresenter == null || !Objects.equals(mPresenter.getPackageName(), packageName) |
| || !Objects.equals(mPresenter.getToken(), token)) { |
| Log.w(TAG, "Attempt to hide non-current toast from package " + packageName); |
| return; |
| } |
| hideCurrentToast(); |
| } |
| |
| @MainThread |
| private void hideCurrentToast() { |
| mPresenter.hide(mCallback); |
| mPresenter = null; |
| } |
| } |