private void OnItemTapped(object sender, ItemTappedEventArgs e)
{
var x = (App.Feed_Data)e.Item;
var ng = Path.GetInvalidFileNameChars();
var directory_path = System.Environment.GetFolderPath(System.Environment.SpecialFolder.ApplicationData) + "/" + "feed";
var filename = this.feed.url;
foreach (var item1 in ng)
{
filename = filename.Replace(item1, ' ');
}
try
{
this.feed = App.getfeedxml(directory_path + "/" + filename + ".txt");
}
catch (Exception)
{
return;
}
this.feed.lastaclink = x.link;
for (int i = 0; i < this.feed.content.Count; i++)
{
if (this.feed.lastaclink == this.feed.content[i].link)
{
if (i == 0)
{
this.feed.newfeedco = "";
break;
}
this.feed.newfeedco = i.ToString();
break;
}
}
App.setfeedxml(this.feed, directory_path + "/" + filename + ".txt");
var webpage = new WebPage(x);
//Navigation.PushModalAsync(webpage);
Browser.OpenAsync(x.link, new BrowserLaunchOptions
{
LaunchMode = BrowserLaunchMode.SystemPreferred,
TitleMode = BrowserTitleMode.Default
});
//Application.Current.MainPage = webpage;
}
public FeedPage(App.Feed feed)
{
InitializeComponent();
this.feed = feed;
label_title.Text = feed.title;
label_updated_time.Text = feed.updatedate;
feed.content.Reverse();
int i = 1;
List <App.Feed_Data> n = new List <App.Feed_Data>();
foreach (var item in feed.content)
{
App.Feed_Data tm = item;
tm.title = i.ToString() + "." + item.title;
//上から1000まで表示 20201208
if (tm.content.Length > 1000)
{
tm.content = tm.content.Substring(0, 1000) + "... hide " + 1000.ToString() + "/" + tm.content.Length.ToString();
}
n.Add(tm);
i++;
}
feed.content = n;
listView.ItemsSource = feed.content;
if (feed.lastaclink != "")
{
foreach (var item in feed.content)
{
if (item.link == feed.lastaclink)
{
listView.SelectedItem = item;
listView.ScrollTo(listView.SelectedItem, ScrollToPosition.Start, false);
break;
}
}
}
}
public FeedPage_Search(App.Feed feed)
{
InitializeComponent();
this.feed = feed;
feed.content.Reverse();
int i = 1;
List <App.Feed_Data> n = new List <App.Feed_Data>();
foreach (var item in feed.content)
{
App.Feed_Data tm = item;
tm.title = i.ToString() + "." + item.title;
n.Add(tm);
i++;
}
feed.content = n;
listView.ItemsSource = feed.content;
}
private async void btn_Clicked(object sender, EventArgs e)
{
if (label.Text != "")
{
return;
}
label.Text = "更新中";
HttpClient httpClient = new HttpClient();
var directory_path = System.Environment.GetFolderPath(System.Environment.SpecialFolder.ApplicationData) + "/" + "feed";
List <App.Feed> feeds = new List <App.Feed>();
List <Task <string> > taskres = new List <Task <string> >();
foreach (var item in File.ReadAllLines(directory_path + "/feed_list.txt"))
{
if (!item.Contains("http"))
{
continue;
}
try
{
var tsr = Task.Run(() => {
var html = "";
try
{
html = httpClient.GetStringAsync(item).Result;
}
catch (Exception)
{
return("error" + " " + item);
}
var filename = Regex.Replace(item, @"http.*//|/|\?", "");
html = html.Replace("\v", "%0B");
File.WriteAllText(directory_path + "/" + filename + ".txt", html);
//
XDocument xDocument;
try
{
xDocument = XDocument.Load(directory_path + "/" + filename + ".txt");
}
catch (Exception)
{
return("XDocument.Load err " + filename);
}
XNamespace ns = xDocument.Root.GetNamespaceOfPrefix("rdf");
App.Feed feed = new App.Feed();
if (ns != null && ns.NamespaceName == "http://www.w3.org/1999/02/22-rdf-syntax-ns#")//rss1.0
{
var element = xDocument.Element("rss");
if (element == null)
{
feed = App.rss1(xDocument, ns, item);
}
else
{
feed = App.rss2(element, item);
}
}
else
{
var element = xDocument.Element("rss");
if (element != null)//rss2.0
{
if (element.Attribute("version").Value == "2.0")
{
feed = App.rss2(element, item);
}
}
else
{
ns = xDocument.Root.GetDefaultNamespace();
element = xDocument.Element(ns + "feed");
if (element != null)//atom
{
feed = App.atom(element, ns, item);
}
}
}
if (feed.content != null)
{
feed.url = item;
feeds.Add(feed);
}
return(item);
});
taskres.Add(tsr);
}
catch (Exception)
{
}
}
foreach (var item in taskres)
{
label.Text = await item;
}
var lfeed = new List <App.Feed>();
foreach (var item in feeds)
{
var ng = Path.GetInvalidFileNameChars();
var filename = item.url + ".txt";
foreach (var item1 in ng)
{
filename = filename.Replace(item1, ' ');
}
if (!File.Exists(directory_path + "/" + filename))
{
var tttf = item;
if (item.content.Count != 0)
{
tttf.lastaclink = item.content[item.content.Count - 1].link;
tttf.newfeedco = item.content.Count.ToString();
}
App.setfeedxml(tttf, directory_path + "/" + filename);
var c = new page.FeedPage(tttf);
lfeed.Add(tttf);
}
else
{
App.Feed oldfeed;
try
{
oldfeed = App.getfeedxml(directory_path + "/" + filename);
}
catch (Exception)
{
var result = await DisplayAlert("Error", item.title + " のFeed data が壊れています。Feed dataを初期化しますか", "OK", "キャンセル");
if (result)
{
var tttf = item;
if (item.content.Count != 0)
{
tttf.lastaclink = item.content[item.content.Count - 1].link;
tttf.newfeedco = item.content.Count.ToString();
}
App.setfeedxml(tttf, directory_path + "/" + filename);
oldfeed = App.getfeedxml(directory_path + "/" + filename);
}
else
{
continue;
}
}
DateTime oldTime = DateTime.Parse(oldfeed.updatedate);
DateTime newTime = DateTime.Parse(item.updatedate);
var x = newTime - oldTime;
if (x.TotalSeconds > 0)
{
item.content.Reverse();
foreach (var content in item.content)
{
var xz = oldfeed.content.Find((a) =>
{
return(a.link == content.link);
});
if (xz.link == null)
{
oldfeed.content.Insert(0, content);
}
}
item.content.Reverse();
for (int i = 0; i < oldfeed.content.Count; i++)
{
if (oldfeed.lastaclink == oldfeed.content[i].link)
{
oldfeed.newfeedco = i.ToString();
break;
}
}
oldfeed.updateda = item.updateda;
App.setfeedxml(oldfeed, directory_path + "/" + filename);
var c = new page.FeedPage(oldfeed);
lfeed.Add(oldfeed);
//lfeed.Add(item);
}
else
{
var c = new page.FeedPage(oldfeed);
lfeed.Add(oldfeed);
}
}
}
listsort(lfeed);
label.Text = "";
}
