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      1 /*
      2  * Copyright (C) 2010 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 android.app.Activity;
     19 import android.app.LoaderManager.LoaderCallbacks;
     20 import android.content.ContentUris;
     21 import android.content.CursorLoader;
     22 import android.content.Intent;
     23 import android.content.Loader;
     24 import android.database.Cursor;
     25 import android.net.Uri;
     26 import android.os.Bundle;
     27 import android.provider.ContactsContract.Contacts;
     28 import android.text.TextUtils;
     29 import android.view.LayoutInflater;
     30 import android.view.View;
     31 import android.view.ViewGroup;
     32 import android.widget.TextView;
     33 
     34 import com.android.contacts.R;
     35 import com.android.contacts.common.list.ContactEntryListFragment;
     36 import com.android.contacts.common.list.ContactListItemView;
     37 import com.android.contacts.list.JoinContactLoader.JoinContactLoaderResult;
     38 
     39 /**
     40  * Fragment for the Join Contact list.
     41  */
     42 public class JoinContactListFragment extends ContactEntryListFragment<JoinContactListAdapter> {
     43 
     44     private static final int DISPLAY_NAME_LOADER = -2;
     45 
     46     private static final String KEY_TARGET_CONTACT_ID = "targetContactId";
     47 
     48     private OnContactPickerActionListener mListener;
     49     private long mTargetContactId;
     50 
     51     private final LoaderCallbacks<Cursor> mLoaderCallbacks = new LoaderCallbacks<Cursor>() {
     52 
     53         @Override
     54         public Loader<Cursor> onCreateLoader(int id, Bundle args) {
     55             switch (id) {
     56                 case DISPLAY_NAME_LOADER: {
     57                     // Loader for the display name of the target contact
     58                     return new CursorLoader(getActivity(),
     59                             ContentUris.withAppendedId(Contacts.CONTENT_URI, mTargetContactId),
     60                             new String[] { Contacts.DISPLAY_NAME }, null, null, null);
     61                 }
     62                 case JoinContactListAdapter.PARTITION_ALL_CONTACTS: {
     63                     JoinContactLoader loader = new JoinContactLoader(getActivity());
     64                     JoinContactListAdapter adapter = getAdapter();
     65                     if (adapter != null) {
     66                         adapter.configureLoader(loader, 0);
     67                     }
     68                     return loader;
     69                 }
     70             }
     71             throw new IllegalArgumentException("No loader for ID=" + id);
     72         }
     73 
     74         @Override
     75         public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
     76             switch (loader.getId()) {
     77                 case DISPLAY_NAME_LOADER: {
     78                     if (data != null && data.moveToFirst()) {
     79                         showTargetContactName(data.getString(0));
     80                     }
     81                     break;
     82                 }
     83                 case JoinContactListAdapter.PARTITION_ALL_CONTACTS: {
     84                     if (data != null) {
     85                         final Cursor suggestionsCursor =
     86                                 ((JoinContactLoaderResult) data).suggestionCursor;
     87                         onContactListLoaded(suggestionsCursor, data);
     88                     }
     89                     break;
     90                 }
     91             }
     92         }
     93 
     94         @Override
     95         public void onLoaderReset(Loader<Cursor> loader) {
     96         }
     97     };
     98 
     99     public JoinContactListFragment() {
    100         setPhotoLoaderEnabled(true);
    101         setSectionHeaderDisplayEnabled(true);
    102         setVisibleScrollbarEnabled(false);
    103         setQuickContactEnabled(false);
    104     }
    105 
    106     public void setOnContactPickerActionListener(OnContactPickerActionListener listener) {
    107         mListener = listener;
    108     }
    109 
    110     @Override
    111     protected void startLoading() {
    112         configureAdapter();
    113 
    114         getLoaderManager().initLoader(DISPLAY_NAME_LOADER, null, mLoaderCallbacks);
    115 
    116         // When this method is called, Uri to be used may be changed. We should use restartLoader()
    117         // to load the parameter again.
    118         getLoaderManager().restartLoader(JoinContactListAdapter.PARTITION_ALL_CONTACTS,
    119                 null, mLoaderCallbacks);
    120     }
    121 
    122     private void onContactListLoaded(Cursor suggestionsCursor, Cursor allContactsCursor) {
    123         JoinContactListAdapter adapter = getAdapter();
    124         adapter.setSuggestionsCursor(suggestionsCursor);
    125         setVisibleScrollbarEnabled(true);
    126         onPartitionLoaded(JoinContactListAdapter.PARTITION_ALL_CONTACTS, allContactsCursor);
    127     }
    128 
    129     private void showTargetContactName(String displayName) {
    130         Activity activity = getActivity();
    131         TextView blurbView = (TextView) activity.findViewById(R.id.join_contact_blurb);
    132         final String name = !TextUtils.isEmpty(displayName) ? displayName
    133             : activity.getString(R.string.missing_name);
    134         String blurb = activity.getString(R.string.blurbJoinContactDataWith, name);
    135         blurbView.setText(blurb);
    136     }
    137 
    138     public void setTargetContactId(long targetContactId) {
    139         mTargetContactId = targetContactId;
    140     }
    141 
    142     @Override
    143     public JoinContactListAdapter createListAdapter() {
    144         JoinContactListAdapter adapter = new JoinContactListAdapter(getActivity());
    145         adapter.setPhotoPosition(ContactListItemView.getDefaultPhotoPosition(true /* opposite */));
    146         return adapter;
    147     }
    148 
    149     @Override
    150     protected void configureAdapter() {
    151         super.configureAdapter();
    152         JoinContactListAdapter adapter = getAdapter();
    153         adapter.setTargetContactId(mTargetContactId);
    154     }
    155 
    156     @Override
    157     protected View inflateView(LayoutInflater inflater, ViewGroup container) {
    158         return inflater.inflate(R.layout.join_contact_picker_list_content, null);
    159     }
    160 
    161     @Override
    162     protected void onItemClick(int position, long id) {
    163         final Uri contactUri = getAdapter().getContactUri(position);
    164         if (contactUri != null) mListener.onPickContactAction(contactUri);
    165     }
    166 
    167     @Override
    168     public void onPickerResult(Intent data) {
    169         final Uri contactUri = data.getData();
    170         if (contactUri != null) mListener.onPickContactAction(contactUri);
    171     }
    172 
    173     @Override
    174     public void onSaveInstanceState(Bundle outState) {
    175         super.onSaveInstanceState(outState);
    176         outState.putLong(KEY_TARGET_CONTACT_ID, mTargetContactId);
    177     }
    178 
    179     @Override
    180     public void restoreSavedState(Bundle savedState) {
    181         super.restoreSavedState(savedState);
    182         if (savedState != null) {
    183             mTargetContactId = savedState.getLong(KEY_TARGET_CONTACT_ID);
    184         }
    185     }
    186 
    187     @Override
    188     public void setQueryString(String queryString, boolean delaySelection) {
    189         super.setQueryString(queryString, delaySelection);
    190 
    191         setSearchMode(!TextUtils.isEmpty(queryString));
    192     }
    193 }
    194