| /* |
| * Copyright (C) 2013 Google Inc. |
| * Licensed to 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.mail.ui; |
| |
| import android.app.LoaderManager; |
| import android.content.Context; |
| import android.content.Loader; |
| import android.database.DataSetObservable; |
| import android.database.DataSetObserver; |
| import android.os.Bundle; |
| |
| import com.android.mail.ContactInfo; |
| import com.android.mail.ContactInfoSource; |
| import com.android.mail.SenderInfoLoader; |
| import com.google.common.collect.ImmutableMap; |
| |
| import java.util.Set; |
| |
| /** |
| * Asynchronously loads contact data for all senders in the conversation, |
| * and notifies observers when the data is ready. |
| */ |
| public class ContactLoaderCallbacks implements ContactInfoSource, |
| LoaderManager.LoaderCallbacks<ImmutableMap<String, ContactInfo>> { |
| |
| private Set<String> mSenders; |
| private ImmutableMap<String, ContactInfo> mContactInfoMap; |
| private DataSetObservable mObservable = new DataSetObservable(); |
| |
| private Context mContext; |
| |
| public ContactLoaderCallbacks(Context context) { |
| mContext = context; |
| } |
| |
| public void setSenders(Set<String> emailAddresses) { |
| mSenders = emailAddresses; |
| } |
| |
| @Override |
| public Loader<ImmutableMap<String, ContactInfo>> onCreateLoader(int id, Bundle args) { |
| return new SenderInfoLoader(mContext, mSenders); |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<ImmutableMap<String, ContactInfo>> loader, |
| ImmutableMap<String, ContactInfo> data) { |
| mContactInfoMap = data; |
| mObservable.notifyChanged(); |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<ImmutableMap<String, ContactInfo>> loader) { |
| } |
| |
| @Override |
| public ContactInfo getContactInfo(String email) { |
| if (mContactInfoMap == null) { |
| return null; |
| } |
| return mContactInfoMap.get(email); |
| } |
| |
| @Override |
| public void registerObserver(DataSetObserver observer) { |
| mObservable.registerObserver(observer); |
| } |
| |
| @Override |
| public void unregisterObserver(DataSetObserver observer) { |
| mObservable.unregisterObserver(observer); |
| } |
| } |