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