1 files changed, 92 insertions, 0 deletions
diff --git a/src/com/android/tv/dvr/ui/browse/DetailsViewBackgroundHelper.java b/src/com/android/tv/dvr/ui/browse/DetailsViewBackgroundHelper.java
new file mode 100644
index 00000000..82fe9ce3
--- /dev/null
+++ b/src/com/android/tv/dvr/ui/browse/DetailsViewBackgroundHelper.java
@@ -0,0 +1,92 @@
+/*
+ * 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.browse;
+
+import android.app.Activity;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.Handler;
+import android.support.v17.leanback.app.BackgroundManager;
+
+/**
+ * The Background Helper.
+ */
+class DetailsViewBackgroundHelper {
+    // Background delay serves to avoid kicking off expensive bitmap loading
+    // in case multiple backgrounds are set in quick succession.
+    private static final int SET_BACKGROUND_DELAY_MS = 100;
+
+    private final BackgroundManager mBackgroundManager;
+
+    class LoadBackgroundRunnable implements Runnable {
+        final Drawable mBackGround;
+
+        LoadBackgroundRunnable(Drawable background) {
+            mBackGround = background;
+        }
+
+        @Override
+        public void run() {
+            if (!mBackgroundManager.isAttached()) {
+                return;
+            }
+            if (mBackGround instanceof BitmapDrawable) {
+                mBackgroundManager.setBitmap(((BitmapDrawable) mBackGround).getBitmap());
+            }
+            mRunnable = null;
+        }
+    }
+
+    private LoadBackgroundRunnable mRunnable;
+
+    private final Handler mHandler = new Handler();
+
+    public DetailsViewBackgroundHelper(Activity activity) {
+        mBackgroundManager = BackgroundManager.getInstance(activity);
+        mBackgroundManager.attach(activity.getWindow());
+    }
+
+    /**
+     * Sets the given image to background.
+     */
+    public void setBackground(Drawable background) {
+        if (mRunnable != null) {
+            mHandler.removeCallbacks(mRunnable);
+        }
+        mRunnable = new LoadBackgroundRunnable(background);
+        mHandler.postDelayed(mRunnable, SET_BACKGROUND_DELAY_MS);
+    }
+
+    /**
+     * Sets the background color.
+     */
+    public void setBackgroundColor(int color) {
+        if (mBackgroundManager.isAttached()) {
+            mBackgroundManager.setColor(color);
+        }
+    }
+
+    /**
+     * Sets the background scrim.
+     */
+    public void setScrim(int color) {
+        if (mBackgroundManager.isAttached()) {
+            mBackgroundManager.setDimLayer(new ColorDrawable(color));
+        }
+    }
+}