Unifying focus indicator handling for workspace and all-apps

Adding an abstract FocusIndicatorHelper based on FocusIndicatorView
which draws the background instead of using a dummy view.

Change-Id: Id560195323d2ddad8fcd77ba675cf3f4fd4a94ab

1 files changed, 52 insertions, 0 deletions

diff --git a/src/com/android/launcher3/keyboard/FocusedItemDecorator.java b/src/com/android/launcher3/keyboard/FocusedItemDecorator.java
new file mode 100644
index 000000000..9c80b0f08
--- /dev/null
+++ b/src/com/android/launcher3/keyboard/FocusedItemDecorator.java
@@ -0,0 +1,52 @@
+/*
+ * 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.launcher3.keyboard;
+
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.RecyclerView.ItemDecoration;
+import android.support.v7.widget.RecyclerView.State;
+import android.view.View;
+import android.view.View.OnFocusChangeListener;
+
+/**
+ * {@link ItemDecoration} for drawing and animating focused view background.
+ */
+public class FocusedItemDecorator extends ItemDecoration {
+
+    private FocusIndicatorHelper mHelper;
+
+    public FocusedItemDecorator(View container) {
+        mHelper = new FocusIndicatorHelper(container) {
+
+            @Override
+            public void viewToRect(View v, Rect outRect) {
+                outRect.set(v.getLeft(), v.getTop(), v.getRight(), v.getBottom());
+            }
+        };
+    }
+
+    public OnFocusChangeListener getFocusListener() {
+        return mHelper;
+    }
+
+    @Override
+    public void onDraw(Canvas c, RecyclerView parent, State state) {
+        mHelper.draw(c);
+    }
+}