1 files changed, 55 insertions, 0 deletions
diff --git a/quickstep/src/com/android/quickstep/views/ClearAllButton.java b/quickstep/src/com/android/quickstep/views/ClearAllButton.java
new file mode 100644
index 000000000..14867ab78
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/views/ClearAllButton.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 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.quickstep.views;
+
+import static android.view.accessibility.AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.view.accessibility.AccessibilityNodeInfo;
+import android.widget.TextView;
+
+public class ClearAllButton extends TextView {
+    RecentsView mRecentsView;
+
+    public ClearAllButton(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public void setRecentsView(RecentsView recentsView) {
+        mRecentsView = recentsView;
+    }
+
+    @Override
+    public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
+        super.onInitializeAccessibilityNodeInfo(info);
+        // Should be visible to accessibility even when completely covered by the task.
+        // Otherwise, we won't be able to scroll to it.
+        info.setVisibleToUser(true);
+    }
+
+    @Override
+    public boolean performAccessibilityAction(int action, Bundle arguments) {
+        final boolean res = super.performAccessibilityAction(action, arguments);
+        if (action == ACTION_ACCESSIBILITY_FOCUS) {
+            mRecentsView.revealClearAllButton();
+        }
+        return res;
+    }
+}