| /* |
| * 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 android.view.View; |
| |
| /** |
| * A base class of the item which will be displayed in the main menu. |
| * It contains the data such as title to represent a row. |
| * This is an abstract class and the sub-class could have it's own data for |
| * the row. |
| */ |
| public abstract class MenuRow { |
| private final Context mContext; |
| private final String mTitle; |
| private final int mHeight; |
| private final Menu mMenu; |
| |
| private MenuRowView mMenuRowView; |
| |
| // TODO: Check if the heightResId is really necessary. |
| public MenuRow(Context context, Menu menu, int titleResId, int heightResId) { |
| this(context, menu, context.getString(titleResId), heightResId); |
| } |
| |
| public MenuRow(Context context, Menu menu, String title, int heightResId) { |
| mContext = context; |
| mTitle = title; |
| mMenu = menu; |
| mHeight = context.getResources().getDimensionPixelSize(heightResId); |
| } |
| |
| /** |
| * Returns the context. |
| */ |
| protected Context getContext() { |
| return mContext; |
| } |
| |
| /** |
| * Returns the menu object. |
| */ |
| public Menu getMenu() { |
| return mMenu; |
| } |
| |
| /** |
| * Returns the title of this row. |
| */ |
| public String getTitle() { |
| return mTitle; |
| } |
| |
| /** |
| * Returns the height of this row. |
| */ |
| public int getHeight() { |
| return mHeight; |
| } |
| |
| /** |
| * Sets the menu row view. |
| */ |
| public void setMenuRowView(MenuRowView menuRowView) { |
| mMenuRowView = menuRowView; |
| } |
| |
| /** |
| * Returns the menu row view. |
| */ |
| protected MenuRowView getMenuRowView() { |
| return mMenuRowView; |
| } |
| |
| /** |
| * Updates the contents in this row. |
| * This method is called only by the menu when necessary. |
| */ |
| abstract public void update(); |
| |
| /** |
| * Indicates whether this row is shown in the menu. |
| */ |
| public boolean isVisible() { |
| return true; |
| } |
| |
| /** |
| * Releases all the resources which need to be released. |
| * This method is called when the main menu is not available any more. |
| */ |
| public void release() { |
| } |
| |
| /** |
| * Returns the ID of the layout resource for this row. |
| */ |
| abstract public int getLayoutResId(); |
| |
| /** |
| * Returns the ID of this row. This ID is used to select the row in the main menu. |
| */ |
| abstract public String getId(); |
| |
| /** |
| * This method is called when recent channels are changed. |
| */ |
| public void onRecentChannelsChanged() { } |
| |
| /** |
| * Returns whether to hide the title when the row is selected. |
| */ |
| public boolean hideTitleWhenSelected() { |
| return false; |
| } |
| } |