/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2015 Umeng, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.umeng.comm.ui.presenter.impl;
import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import com.umeng.comm.core.beans.Topic;
import com.umeng.comm.core.listeners.Listeners.FetchListener;
import com.umeng.comm.core.listeners.Listeners.SimpleFetchListener;
import com.umeng.comm.core.nets.responses.TopicResponse;
import com.umeng.comm.core.nets.uitls.NetworkUtils;
import com.umeng.comm.core.utils.CommonUtils;
import com.umeng.comm.core.utils.Log;
import com.umeng.comm.core.utils.ToastMsg;
import com.umeng.comm.ui.mvpview.MvpRecommendTopicView;
import com.umeng.comm.ui.utils.BroadcastUtils;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
/**
*
*/
public class TopicFgPresenter extends RecommendTopicPresenter {
private static final int CHECK_RESULT = 0x01;
private static final int DELAY = 100;
private SearchTask mSearchTask = new SearchTask();
// private static boolean isRefreshed = false;
public TopicFgPresenter(MvpRecommendTopicView recommendTopicView) {
super(recommendTopicView);
}
// 检测消息是否加载完成，防止block
@SuppressLint("HandlerLeak")
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what != CHECK_RESULT) {
return;
}
boolean done = mSearchTask.isDone();
if (!done) {
mHandler.sendEmptyMessageDelayed(CHECK_RESULT, DELAY);
}
}
};
@Override
public void attach(Context context) {
super.attach(context);
BroadcastUtils.registerTopicBroadcast(context, mReceiver);
}
@Override
public void loadDataFromServer() {
mCommunitySDK.fetchTopics(new FetchListener<TopicResponse>() {
@Override
public void onStart() {
mRecommendTopicView.onRefreshStart();
}
@Override
public void onComplete(final TopicResponse response) {
// 根据response进行Toast
if (NetworkUtils.handleResponseAll(response)) {
// 如果是网络错误，其结果可能快于DB查询
if (CommonUtils.isNetworkErr(response.errCode)) {
mRecommendTopicView.onRefreshEndNoOP();
} else {
mRecommendTopicView.onRefreshEnd();
}
return;
}
// clearTopicCacheAfterFirstRefresh();
mDatabaseAPI.getTopicDBAPI().deleteAllTopics();
final List<Topic> results = response.result;
updateNextPageUrl(results.get(0).nextPage);
fetchTopicComplete(results, true);
mRecommendTopicView.onRefreshEnd();
}
});
}
// /**
// * 第一次刷新数据后清空本地数据库缓存
// */
// private void clearTopicCacheAfterFirstRefresh() {
// if (!isRefreshed) {
// isRefreshed = true;
// mDatabaseAPI.getTopicDBAPI().deleteAllTopics();
// }
// }
@Override
public void loadDataFromDB() {
mDatabaseAPI.getTopicDBAPI().loadTopicsFromDB(mDbFetchListener);
}
SimpleFetchListener<List<Topic>> mDbFetchListener = new SimpleFetchListener<List<Topic>>() {
@Override
public void onComplete(List<Topic> result) {
if (!isActivityAlive()) {
return;
}
List<Topic> newTopics = setFollowedTag(result);
// 更新listview数据
mRecommendTopicView.getBindDataSource().addAll(0, newTopics);
mRecommendTopicView.notifyDataSetChanged();
}
};
/**
* 将已经关注的Topic设置标识,数据库中没有保存该字段
*
* @param results
* @return
*/
private List<Topic> setFollowedTag(List<Topic> results) {
// 将过滤后的数据添加到listview中,这些为用户已经关注的话题列表
// List<Topic> newTopics = filterTopics(results);
// for (Topic topic : newTopics) {
// topic.isFocused = true;
// }
return results;
}
// /**
// * 移除重复的话题</br>
// *
// * @param dest 目标话题列表。
// * @return
// */
// private List<Topic> filterTopics(List<Topic> dest) {
// List<Topic> src = mRecommendTopicView.getBindDataSource();
// src.removeAll(dest);
// return dest;
// }
@Override
public void loadMoreData() {
final List<Topic> datas = mRecommendTopicView.getBindDataSource();
if (datas == null || datas.size() <= 0) {
mRecommendTopicView.onRefreshEnd();
return;
}
String url = datas.get(datas.size() - 1).nextPage;
if (TextUtils.isEmpty(url)) {
// ToastMsg.showShortMsgByResName(mContext,
// "umeng_comm_load_complete");
mRecommendTopicView.onRefreshEnd();
return;
}
Log.d("TopicDialog", "加载更多下一页 : " + url);
mCommunitySDK.fetchNextPageData(url, TopicResponse.class,
new SimpleFetchListener<TopicResponse>() {
@Override
public void onComplete(TopicResponse response) {
mRecommendTopicView.onRefreshEnd();
// 根据response进行Toast
if (NetworkUtils.handleResponseAll(response)) {
return;
}
fetchTopicComplete(response.result, false);
}
});
}
@Override
protected void dealNextPageUrl(String url, boolean fromRefresh) {
}
/**
* 话题搜索处理类
*/
class SearchTask {
ExecutorService executorService = Executors.newFixedThreadPool(1);
Future<Void> future = null;
/**
* 请求根据关键字搜索话题。对于对个请求，总是以最新的请求为准</br>
*
* @param keyword 话题的关键字
*/
public void execute(final String keyword) {
if (TextUtils.isEmpty(keyword)) {
ToastMsg.showShortMsgByResName("umeng_comm_search_keyword_input");
return;
}
// 如果本次搜索未完成，直接取消，搜索新的话题
cancelTask();
// 构建Callable任务
Callable<Void> callable = new Callable<Void>() {
@Override
public Void call() throws Exception {
// 异步搜索
mCommunitySDK.searchTopic(keyword,
new SimpleFetchListener<TopicResponse>() {
@Override
public void onComplete(TopicResponse response) {
mRecommendTopicView.onRefreshEnd();
updateResult(response.result);
}
});
return null;
}
};
future = executorService.submit(callable);
mHandler.sendEmptyMessageDelayed(CHECK_RESULT, DELAY);
}
// 取消未完成的搜索任务
void cancelTask() {
if (future != null && !future.isDone()) {
future.cancel(true);
mHandler.removeMessages(CHECK_RESULT);
}
}
// 检查该搜索任务是否完成
boolean isDone() {
if (future != null) {
return future.isDone();
}
return true;
}
} // end of Task
// 获取搜索结果并更新listView
void updateResult(List<Topic> topics) {
try {
if (topics != null && topics.size() > 0) {
updateTopicFocusable(topics);
List<Topic> dataSource = mRecommendTopicView.getBindDataSource();
dataSource.clear();
dataSource.addAll(topics);
mRecommendTopicView.notifyDataSetChanged();
} else if (topics.size() == 0) {
ToastMsg.showShortMsgByResName("umeng_comm_search_topic_failed");
} else {
ToastMsg.showShortMsgByResName("umeng_comm_search_topic_failed");
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 更新搜索到的话题的isFocus字段。由于Server比较难处理是否关注（数据量大），
* 获取话题时不返回是否关注字段。目前暂时跟本地话题对比的方式</br>
*
* @param newTopics
*/
private void updateTopicFocusable(List<Topic> newTopics) {
List<Topic> dataSource = mRecommendTopicView.getBindDataSource();
if (dataSource.size() == 0) {
return;
}
int len = dataSource.size();
Topic topic = null;
for (int i = 0; i < len; i++) {
topic = dataSource.get(i);
if (newTopics.contains(topic)) {
int index = newTopics.indexOf(topic);
newTopics.get(index).isFocused = topic.isFocused;
}
}
}
/**
* 搜索话题</br>
*
* @param keyword
*/
public void executeSearch(String keyword) {
mSearchTask.execute(keyword);
}
@Override
public void detach() {
mSearchTask.cancelTask();
mHandler.removeCallbacks(null);
super.detach();
}
}