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/*
* 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);
}
protected Context getContext() {
return mContext;
}
protected Set<String> getSenders() {
return mSenders;
}
}
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