1 files changed, 72 insertions, 0 deletions
diff --git a/src/com/android/car/calendar/DrawableStateImageButton.java b/src/com/android/car/calendar/DrawableStateImageButton.java
new file mode 100644
index 0000000..4ebd06e
--- /dev/null
+++ b/src/com/android/car/calendar/DrawableStateImageButton.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 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.car.calendar;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.ImageButton;
+
+import androidx.annotation.Nullable;
+
+import com.android.car.ui.uxr.DrawableStateView;
+
+/**
+ * An {@link ImageButton} that implements {@link DrawableStateView}, for allowing additional states
+ * such as ux restriction.
+ *
+ * @see com.android.car.ui.uxr.DrawableStateButton
+ *
+ * TODO(jdp) Move this to car-ui-lib.
+ */
+public class DrawableStateImageButton extends ImageButton implements DrawableStateView {
+
+    private int[] mState;
+
+    public DrawableStateImageButton(Context context) {
+        super(context);
+    }
+
+    public DrawableStateImageButton(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public DrawableStateImageButton(
+            Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public DrawableStateImageButton(
+            Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    @Override
+    public void setDrawableState(int[] state) {
+        mState = state;
+        refreshDrawableState();
+    }
+
+    @Override
+    public int[] onCreateDrawableState(int extraSpace) {
+        if (mState == null) {
+            return super.onCreateDrawableState(extraSpace);
+        } else {
+            return mergeDrawableStates(
+                    super.onCreateDrawableState(extraSpace + mState.length), mState);
+        }
+    }
+}