1 files changed, 79 insertions, 0 deletions
diff --git a/src/com/android/tv/dvr/ui/ChangeImageTransformWithScaledParent.java b/src/com/android/tv/dvr/ui/ChangeImageTransformWithScaledParent.java
new file mode 100644
index 00000000..cddece73
--- /dev/null
+++ b/src/com/android/tv/dvr/ui/ChangeImageTransformWithScaledParent.java
@@ -0,0 +1,79 @@
+/*
+ * 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.tv.dvr.ui;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Matrix;
+import android.graphics.drawable.BitmapDrawable;
+import android.transition.ChangeImageTransform;
+import android.transition.TransitionValues;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.ImageView.ScaleType;
+
+import com.android.tv.R;
+
+import java.util.Map;
+
+/**
+ * TODO: Remove this class once b/32405620 is fixed.
+ * This class is for the workaround of b/32405620 and only for the shared element transition between
+ * {@link com.android.tv.dvr.ui.browse.RecordingCardView} and
+ * {@link com.android.tv.dvr.ui.browse.DvrDetailsActivity}.
+ */
+public class ChangeImageTransformWithScaledParent extends ChangeImageTransform {
+    private static final String PROPNAME_MATRIX = "android:changeImageTransform:matrix";
+
+    public ChangeImageTransformWithScaledParent(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public void captureStartValues(TransitionValues transitionValues) {
+        super.captureStartValues(transitionValues);
+        applyParentScale(transitionValues);
+    }
+
+    @Override
+    public void captureEndValues(TransitionValues transitionValues) {
+        super.captureEndValues(transitionValues);
+        applyParentScale(transitionValues);
+    }
+
+    private void applyParentScale(TransitionValues transitionValues) {
+        View view = transitionValues.view;
+        Map<String, Object> values = transitionValues.values;
+        Matrix matrix = (Matrix) values.get(PROPNAME_MATRIX);
+        if (matrix != null && view.getId() == R.id.details_overview_image
+                && view instanceof ImageView) {
+            ImageView imageView = (ImageView) view;
+            if (imageView.getScaleType() == ScaleType.CENTER_INSIDE
+                    && imageView.getDrawable() instanceof BitmapDrawable) {
+                Bitmap bitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();
+                if (bitmap.getWidth() < imageView.getWidth()
+                        && bitmap.getHeight() < imageView.getHeight()) {
+                    float scale = imageView.getContext().getResources().getFraction(
+                            R.fraction.lb_focus_zoom_factor_medium, 1, 1);
+                    matrix.postScale(scale, scale, imageView.getWidth() / 2,
+                            imageView.getHeight() / 2);
+                }
+            }
+        }
+    }
+}