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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.settings;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.content.res.Resources;
     22 
     23 import com.android.tv.settings.util.UriUtils;
     24 
     25 /**
     26  * Represents a Menu Item
     27  */
     28 public class MenuItem {
     29 
     30     public interface UriGetter {
     31         String getUri();
     32     }
     33 
     34     public interface TextGetter {
     35         String getText();
     36     }
     37 
     38     public static class Builder {
     39         private int mId;
     40         private String mTitle;
     41         private TextGetter mDescriptionGetter;
     42         private UriGetter mImageUriGetter;
     43         private Intent mIntent;
     44 
     45         public Builder from(MenuItem item) {
     46             mId = item.mId;
     47             mTitle = item.mDisplayName;
     48             mDescriptionGetter = item.mDisplayDescriptionTextGetter;
     49             mImageUriGetter = item.mImageUriGetter;
     50             mIntent = item.mIntent;
     51             return this;
     52         }
     53 
     54         public Builder id(int id) {
     55             mId = id;
     56             return this;
     57         }
     58 
     59         public Builder title(String title) {
     60             mTitle = title;
     61             return this;
     62         }
     63 
     64         public Builder descriptionGetter(TextGetter descriptionGetter) {
     65             mDescriptionGetter = descriptionGetter;
     66             return this;
     67         }
     68 
     69         public Builder description(String description) {
     70             return descriptionGetter(new MenuItem.ConstantTextGetter(description));
     71         }
     72 
     73         public Builder imageUriGetter(UriGetter imageUriGetter) {
     74             mImageUriGetter = imageUriGetter;
     75             return this;
     76         }
     77 
     78         public Builder imageResourceId(Context context, int imageResourceId) {
     79             return imageResourceId(context.getResources(), imageResourceId);
     80         }
     81 
     82         public Builder imageResourceId(Resources resources, int imageResourceId) {
     83             return imageUri(
     84                     UriUtils.getAndroidResourceUri(resources, imageResourceId));
     85         }
     86 
     87         public Builder imageUri(String uri) {
     88             return imageUriGetter(new MenuItem.ConstantUriGetter(uri));
     89         }
     90 
     91         public Builder intent(Intent intent) {
     92             mIntent = intent;
     93             return this;
     94         }
     95 
     96         public MenuItem build() {
     97             return new MenuItem(mId, mTitle, mDescriptionGetter, mImageUriGetter,
     98                     mIntent);
     99         }
    100     }
    101 
    102     private static class ConstantUriGetter implements MenuItem.UriGetter {
    103 
    104         private final String mUri;
    105 
    106         public ConstantUriGetter(String uri) {
    107             mUri = uri;
    108         }
    109 
    110         @Override
    111         public String getUri() {
    112             return mUri;
    113         }
    114     }
    115 
    116     private static class ConstantTextGetter implements MenuItem.TextGetter {
    117 
    118         private final String mText;
    119 
    120         public ConstantTextGetter(String text) {
    121             mText = text;
    122         }
    123 
    124         @Override
    125         public String getText() {
    126             return mText;
    127         }
    128     }
    129 
    130     private final int mId;
    131     private final String mDisplayName;
    132     private final TextGetter mDisplayDescriptionTextGetter;
    133     private final UriGetter mImageUriGetter;
    134     private final Intent mIntent;
    135 
    136     private MenuItem(int id, String displayName,
    137             TextGetter displayDescriptionTextGetter, UriGetter imageUriGetter,
    138             Intent intent) {
    139         mId = id;
    140         mDisplayName = displayName;
    141         mDisplayDescriptionTextGetter = displayDescriptionTextGetter;
    142         mImageUriGetter = imageUriGetter;
    143         mIntent = intent;
    144     }
    145 
    146     public int getId() {
    147         return mId;
    148     }
    149 
    150     public String getTitle() {
    151         return mDisplayName;
    152     }
    153 
    154     public TextGetter getDescriptionGetter() {
    155         return mDisplayDescriptionTextGetter;
    156     }
    157 
    158     public UriGetter getImageUriGetter() {
    159         return mImageUriGetter;
    160     }
    161 
    162     public Intent getIntent() {
    163         return mIntent;
    164     }
    165 }
    166