1 files changed, 83 insertions, 0 deletions
diff --git a/src/com/android/tv/menu/CustomizableOptionsRowAdapter.java b/src/com/android/tv/menu/CustomizableOptionsRowAdapter.java
new file mode 100644
index 00000000..f69d5e86
--- /dev/null
+++ b/src/com/android/tv/menu/CustomizableOptionsRowAdapter.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 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.menu;
+
+import android.content.Context;
+
+import com.android.tv.customization.CustomAction;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * An adapter of options that can accepts customization data.
+ */
+public abstract class CustomizableOptionsRowAdapter extends OptionsRowAdapter {
+    private final List<CustomAction> mCustomActions;
+
+    public CustomizableOptionsRowAdapter(Context context, List<CustomAction> customActions) {
+        super(context);
+        mCustomActions = customActions;
+    }
+
+    // Subclass should implement this and return list of {@link MenuAction}.
+    // Custom actions will be added at the first or the last position in addition.
+    // Note that {@link MenuAction} should have non-negative type
+    // because negative types are reserved for custom actions.
+    protected abstract List<MenuAction> createBaseActions();
+
+    // Subclass should implement this to perform proper action
+    // for {@link MenuAction} with the given type returned by {@link createBaseActions}.
+    protected abstract void executeBaseAction(int type);
+
+    @Override
+    protected List<MenuAction> createActions() {
+        List<MenuAction> actions = new ArrayList<>(createBaseActions());
+
+        if (mCustomActions != null) {
+            int position = 0;
+            for (int i = 0; i < mCustomActions.size(); i++) {
+                // Type of MenuAction should be unique in the Adapter.
+                int type = -(i + 1);
+                CustomAction customAction = mCustomActions.get(i);
+                MenuAction action = new MenuAction(
+                        customAction.getTitle(), type, customAction.getIconDrawable());
+
+                if (customAction.isFront()) {
+                    actions.add(position++, action);
+                } else {
+                    actions.add(action);
+                }
+            }
+        }
+        return actions;
+    }
+
+    @Override
+    protected void executeAction(int type) {
+        if (type < 0) {
+            int position = -(type + 1);
+            getMainActivity().startActivitySafe(mCustomActions.get(position).getIntent());
+        } else {
+            executeBaseAction(type);
+        }
+    }
+
+    protected List<CustomAction> getCustomActions() {
+        return mCustomActions;
+    }
+}