System action registration API for SystemUI
Bug: 136286274
Test: atest AccessibilityManagerTest
atest AccessibilityManagerServiceTest
Change-Id: I6bbdf3627bfc9b39551cc7809dda1cf43d1d6ea4
diff --git a/tests/utils/testutils/Android.bp b/tests/utils/testutils/Android.bp
index f71be7b..a6625ab 100644
--- a/tests/utils/testutils/Android.bp
+++ b/tests/utils/testutils/Android.bp
@@ -22,6 +22,7 @@
static_libs: [
"junit",
"hamcrest-library",
+ "androidx.test.runner",
],
libs: [
diff --git a/tests/utils/testutils/java/com/android/server/accessibility/test/MessageCapturingHandler.java b/tests/utils/testutils/java/com/android/server/accessibility/test/MessageCapturingHandler.java
new file mode 100644
index 0000000..bce2ab5
--- /dev/null
+++ b/tests/utils/testutils/java/com/android/server/accessibility/test/MessageCapturingHandler.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 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.server.accessibility.test;
+
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Pair;
+
+import androidx.test.InstrumentationRegistry;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Utility class to capture messages dispatched through a handler and control when they arrive
+ * at their target.
+ */
+public class MessageCapturingHandler extends Handler {
+ public List<Pair<Message, Long>> timedMessages = new ArrayList<>();
+
+ Handler.Callback mCallback;
+
+ public MessageCapturingHandler(Handler.Callback callback) {
+ this(InstrumentationRegistry.getContext().getMainLooper(), callback);
+ }
+
+ public MessageCapturingHandler(Looper looper, Callback callback) {
+ super(looper);
+ mCallback = callback;
+ }
+
+ /**
+ * Holding messages in queue, but never dispatching.
+ * @see #removeAllMessages()
+ */
+ @Override
+ public boolean sendMessageAtTime(Message message, long uptimeMillis) {
+ timedMessages.add(new Pair<>(Message.obtain(message), uptimeMillis));
+ return super.sendMessageAtTime(message, Long.MAX_VALUE);
+ }
+
+ public void setCallback(Handler.Callback callback) {
+ mCallback = callback;
+ }
+
+ public void sendOneMessage() {
+ Message message = timedMessages.remove(0).first;
+ removeMessages(message.what, message.obj);
+ dispatchMessage(message);
+ removeStaleMessages();
+ }
+
+ public void sendAllMessages() {
+ while (!timedMessages.isEmpty()) {
+ sendOneMessage();
+ }
+ }
+
+ public void sendLastMessage() {
+ Message message = timedMessages.remove(timedMessages.size() - 1).first;
+ removeMessages(message.what, message.obj);
+ dispatchMessage(message);
+ removeStaleMessages();
+ }
+
+ /**
+ * Clear messages sent from this handler in queue.
+ * <p>
+ * If main looper is used, this method should be called in tear down function
+ * to ensure messages isolation between test cases.
+ * </p>
+ */
+ public void removeAllMessages() {
+ if (hasMessages()) {
+ for (int i = 0; i < timedMessages.size(); i++) {
+ Message message = timedMessages.get(i).first;
+ removeMessages(message.what, message.obj);
+ }
+ }
+ }
+
+ public boolean hasMessages() {
+ removeStaleMessages();
+ return !timedMessages.isEmpty();
+ }
+
+ private void removeStaleMessages() {
+ for (int i = 0; i < timedMessages.size(); i++) {
+ Message message = timedMessages.get(i).first;
+ if (!hasMessages(message.what, message.obj)) {
+ timedMessages.remove(i--);
+ }
+ }
+ }
+
+ public void dispatchMessage(Message m) {
+ if (mCallback != null) {
+ mCallback.handleMessage(m);
+ return;
+ }
+ super.dispatchMessage(m);
+ }
+}