protected override async void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.New)
{
Bookitem = e.Parameter as BookItem;
bookDetailsGrid.DataContext = Bookitem;
localTitle = MainPage.TitleTextBlock.Text = Bookitem.Title;
var htmlPage = await HTMLParser.Instance.GetHtml(Bookitem.Interlinkage);
if (htmlPage == null)
{
await MainPage.PopMessageDialog("网络或服务器故障！");
return;
}
HtmlDoc.LoadHtml(htmlPage);
var contentNode = HtmlDoc.GetElementbyId("content");
var summary = contentNode.ChildNodes[1].ChildNodes[7].ChildNodes[1].ChildNodes[3].ChildNodes[13].InnerText;
readLinkage = contentNode.ChildNodes[1].ChildNodes[11].ChildNodes[1].ChildNodes[1].ChildNodes[1].ChildNodes[3].ChildNodes[0].Attributes["href"].Value;
Bookitem.Summary = summary.Replace(" ", " ");
Bookitem.ReadLinkage = readLinkage;
try {
var localFolder = ApplicationData.Current.LocalCacheFolder;
var file = await localFolder.GetFileAsync("collectedNovels.txt");
var collectedNovels = await FileIO.ReadTextAsync(file);
if (collectedNovels.Contains(Bookitem.BID))
{
CollectButton.Content = "取消收藏";
}
else
{
CollectButton.Content = "添加收藏";
}
}
catch (Exception) {
CollectButton.Content = "添加收藏";
}
summaryTextBlock.Text = Bookitem.Summary;
htmlPage = await HTMLParser.Instance.GetHtml(Bookitem.ReadLinkage);
if (htmlPage == null)
{
await MainPage.PopMessageDialog("已取消收藏！");
}
else
{
BookIndexes.Clear();
BookIndexParser.Instance.GetBookIndexes(htmlPage, BookIndexes);
MainPage.ProgressRing.IsActive = false;
MainPage.ProgressRing.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
}
else if (e.NavigationMode == NavigationMode.Back)
{
MainPage.TitleTextBlock.Text = localTitle;
MainPage.ProgressRing.IsActive = false;
MainPage.ProgressRing.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
}