void sendNotification(UrlContentSnap newOne)
{
// 有新的出现后发送通知
if (UrlContentSnapList.Count > 1)
{
ToastsDef.SendNotification_TwoString("关注的网站 [" + id + "] 内容更新了", newOne.Url, "Id=" + id);
}
}
public async Task <bool> CheckExistance()
{
var local = ApplicationData.Current.LocalFolder;
try
{
localStorageFolder = await local.GetFolderAsync(id);
}
catch
{
localStorageFolder = await local.CreateFolderAsync(id);
}
if (localStorageFolder == null)
{
return(false);
}
var UrlInfo = await LoadUrlInfo();
if (UrlInfo == null)
{
return(false);
}
Updating = true;
var FileList = await localStorageFolder.GetFilesAsync();
var FileList_Snaps = FileList.Where(a => { if (a.Name.EndsWith(".html") || (!a.Name.StartsWith("Snap")))
{
return(false);
}
else
{
return(true);
} });
var Tasks = new List <Task <bool> >();
foreach (var file in FileList_Snaps)
{
var Snap = new UrlContentSnap();
Snap.path = file.Path;
Tasks.Add(Snap.LoadFromFile());
UrlContentSnapList.Insert(0, Snap);
}
foreach (var m in Tasks)
{
await m;
}
if (UrlContentSnapList.Count > 0)
{
recentStamp = UrlContentSnapList[0].TimeStamp[0].ToString();
}
Updating = false;
return(true);
}
public async Task CheckNow()
{
if (localStorageFolder == null || webURL == null || IsActivated == false)
{
return;
}
Updating = true;
//string Content = await GetFromUrl(webURL);
string Content = await GetFromUrl(webURL);
if (Content.Count() == 0)
{
Updating = false; return;
}
UrlContentSnap newOne = new UrlContentSnap();
newOne.Content = Content;
newOne.TimeStamp.Add(DateTime.Now);
newOne.Url = webURL.OriginalString;
newOne.path = localStorageFolder.Path + "\\Snap_" + newOne.TimeStamp.Last().ToString("yyyyMMddHHmmss");
if (UrlContentSnapList.Count > 0 && CompareToRecentRecord(UrlContentSnapList.First(), newOne))
{//same
UrlContentSnapList.First().TimeStamp.Insert(0, DateTime.Now);
UrlContentSnapList.First().PropertyChangeEventHappen("TimeStampShowOut");
await UrlContentSnapList.First().SaveToFile(SaveMode.Update);
}
else
{
await newOne.SaveToFile();
UrlContentSnapList.Insert(0, newOne);
sendNotification(newOne);
}
recentStamp = newOne.TimeStamp[0].ToString();
Updating = false;
}
bool CompareToRecentRecord(UrlContentSnap RecentSnap, UrlContentSnap newOne)
{
return((RecentSnap.Content == newOne.Content) && (RecentSnap.Url == newOne.Url));
}