async Task <List <NoticeItemViewModel> > LoadNoticeDataAsync(CancellationTokenSource cts)
{
var data = new List <NoticeItemViewModel>();
string url = string.Format("http://www.hi-pda.com/forum/notice.php?_={0}", DateTime.Now.Ticks.ToString("x"));
string htmlStr = await _httpClient.GetAsync(url, cts);
// 实例化 HtmlAgilityPack.HtmlDocument 对象
HtmlDocument doc = new HtmlDocument();
// 载入HTML
doc.LoadHtml(htmlStr);
var items = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("ul") && n.GetAttributeValue("class", "").Equals("feed"))?.ChildNodes;
if (items == null)
{
return(null);
}
foreach (var item in items)
{
NoticeType noticeType;
bool isNew = false;
string userId = string.Empty;
string username = string.Empty;
string actionTime = string.Empty;
string threadId = string.Empty;
string threadTitle = string.Empty;
string originalText = string.Empty;
string actionText = string.Empty;
string repostStr = string.Empty;
string postId = string.Empty;
HtmlNode userLinkNode;
HtmlNode threadLinkNode;
var divNode = item.ChildNodes[0];
string nodeClass = divNode.Attributes[0].Value.Trim().ToLower();
switch (nodeClass)
{
case "f_quote":
case "f_reply":
noticeType = NoticeType.QuoteOrReply;
userLinkNode = divNode.ChildNodes[0];
userId = userLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/space.php?from=notice&uid=".Length).Split('&')[0];
username = userLinkNode.InnerText.Trim();
threadLinkNode = divNode.ChildNodes[2];
threadId = threadLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/viewthread.php?from=notice&tid=".Length).Split('&')[0];
threadTitle = threadLinkNode.InnerText.Trim();
actionTime = divNode.ChildNodes[4].InnerText.Trim();
HtmlNode actionContentNode;
HtmlNode buttonsNode;
if (divNode.ChildNodes[5].Name.Equals("img"))
{
isNew = true;
actionContentNode = divNode.ChildNodes[7];
buttonsNode = divNode.ChildNodes[9];
}
else
{
actionContentNode = divNode.ChildNodes[6];
buttonsNode = divNode.ChildNodes[8];
}
originalText = actionContentNode.ChildNodes[0].ChildNodes[1].ChildNodes[0]
.InnerText.Trim()
.Replace("\r", " ")
.Replace("\n", " ");
actionText = actionContentNode.ChildNodes[0].ChildNodes[1].ChildNodes[2]
.InnerText.Trim()
.Replace("\r", " ")
.Replace("\n", " ");
var replyLinkNode = buttonsNode.ChildNodes[0];
repostStr = replyLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/post.php?from=notice&action=reply&fid=2&tid=1778684&reppost=".Length).Split('&')[0];
var viewLinkNode = buttonsNode.ChildNodes[2];
postId = viewLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/redirect.php?from=notice&goto=findpost&pid=".Length).Split('&')[0];
data.Add(new NoticeItemViewModel(noticeType, isNew, username, actionTime, new string[] {
userId, // 0
threadId, // 1
threadTitle, // 2
originalText, // 3
actionText, // 4
repostStr, // 5
postId // 6
}));
break;
case "f_thread":
noticeType = NoticeType.Thread;
var nodes = divNode.ChildNodes;
var usernames = new List <string>();
var usernameNodes = nodes.Where(n => n.Name.Equals("a") && n.Attributes[0].Value.StartsWith("space.php?username="******",", usernames);
threadLinkNode = nodes.FirstOrDefault(n => n.Name.Equals("a") && n.Attributes[0].Value.StartsWith("http://www.hi-pda.com/forum/redirect.php?from=notice&goto=findpost&pid="));
string linkUrlStr = threadLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/redirect.php?from=notice&goto=findpost&pid=".Length).Replace("ptid=", string.Empty);
string[] idsAry = linkUrlStr.Split('&');
postId = idsAry[0];
threadId = idsAry[1];
threadTitle = threadLinkNode.InnerText.Trim();
actionTime = nodes.FirstOrDefault(n => n.Name.Equals("em")).InnerText.Trim();
isNew = nodes.Count(n => n.Name.Equals("img") && n.GetAttributeValue("alt", "").Equals("NEW")) == 1;
data.Add(new NoticeItemViewModel(noticeType, isNew, username, actionTime, new string[] {
threadId,
threadTitle,
postId
}));
break;
case "f_buddy":
noticeType = NoticeType.Buddy;
userLinkNode = divNode.ChildNodes[0];
userId = userLinkNode.Attributes[0].Value.Substring("http://www.hi-pda.com/forum/space.php?from=notice&uid=".Length);
username = userLinkNode.InnerText.Trim();
actionTime = divNode.ChildNodes[2].InnerText.Trim();
isNew = divNode.ChildNodes[3].Name.Equals("img");
data.Add(new NoticeItemViewModel(noticeType, isNew, username, actionTime, new string[] {
userId
}));
break;
}
}
#region 还原通知数据的“NEW”状态后，清除 toast notice data
var noticeToastTempData = ToastService.GetNoticeToastTempData();
if (noticeToastTempData != null)
{
foreach (var i in noticeToastTempData)
{
foreach (var j in data)
{
string key = string.Format("{0}#{1}", (int)j.NoticeType, j.ActionTime);
if (key.Equals(i) && j.IsNew == false)
{
j.IsNew = true;
break;
}
}
}
}
ToastService.ClearNoticeToastTempData();
#endregion
return(data);
}
