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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 package com.android.contacts.list;
     17 
     18 import com.android.contacts.R;
     19 import com.android.contacts.common.list.ContactListItemView;
     20 import com.android.contacts.common.list.DefaultContactListAdapter;
     21 
     22 import android.content.Context;
     23 import android.database.Cursor;
     24 import android.view.View;
     25 import android.view.ViewGroup;
     26 
     27 /**
     28  * Equivalent to DefaultContactListAdapter, except with an optional header entry that has the same
     29  * formatting as the other entries in the list.
     30  *
     31  * This header entry is hidden when in search mode. Should not be used with lists that contain a
     32  * "Me" contact.
     33  */
     34 public class HeaderEntryContactListAdapter extends DefaultContactListAdapter {
     35 
     36     private boolean mShowCreateContact;
     37 
     38     public HeaderEntryContactListAdapter(Context context) {
     39         super(context);
     40     }
     41 
     42     private int getHeaderEntryCount() {
     43         return isSearchMode() || !mShowCreateContact ? 0 : 1;
     44     }
     45 
     46     /**
     47      * Whether the first entry should be "Create contact", when not in search mode.
     48      */
     49     public void setShowCreateContact(boolean showCreateContact) {
     50         mShowCreateContact = showCreateContact;
     51         invalidate();
     52     }
     53 
     54     @Override
     55     public int getCount() {
     56         return super.getCount() + getHeaderEntryCount();
     57     }
     58 
     59     @Override
     60     public View getView(int position, View convertView, ViewGroup parent) {
     61         if (position == 0 && getHeaderEntryCount() > 0) {
     62             final ContactListItemView itemView;
     63             if (convertView == null) {
     64                 // Pass the cursor down. Don't worry, it isn't used.
     65                 itemView = newView(getContext(), 0, getCursor(0), 0, parent);
     66             } else {
     67                 itemView = (ContactListItemView ) convertView;
     68             }
     69             itemView.setDrawableResource(R.drawable.search_shortcut_background,
     70                     R.drawable.ic_search_add_contact);
     71             itemView.setDisplayName(getContext().getResources().getString(
     72                     R.string.header_entry_contact_list_adapter_header_title));
     73             return itemView;
     74         }
     75         return super.getView(position - getHeaderEntryCount(), convertView, parent);
     76     }
     77 
     78     @Override
     79     public Object getItem(int position) {
     80         return super.getItem(position - getHeaderEntryCount());
     81     }
     82 
     83     @Override
     84     public boolean isEnabled(int position) {
     85         return position < getHeaderEntryCount() || super
     86                 .isEnabled(position - getHeaderEntryCount());
     87     }
     88 
     89     @Override
     90     public int getPartitionForPosition(int position) {
     91         return super.getPartitionForPosition(position - getHeaderEntryCount());
     92     }
     93 
     94     @Override
     95     protected void bindView(View itemView, int partition, Cursor cursor, int position) {
     96         super.bindView(itemView, partition, cursor, position + getHeaderEntryCount());
     97     }
     98 
     99     @Override
    100     public int getItemViewType(int position) {
    101         if (position == 0 && getHeaderEntryCount() > 0) {
    102             return getViewTypeCount() - 1;
    103         }
    104         return super.getItemViewType(position - getHeaderEntryCount());
    105     }
    106 
    107     @Override
    108     public int getViewTypeCount() {
    109         // One additional view type, for the header entry.
    110         return super.getViewTypeCount() + 1;
    111     }
    112 
    113     @Override
    114     protected boolean getExtraStartingSection() {
    115         return getHeaderEntryCount() > 0;
    116     }
    117 }
    118