private void ViewModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
// Set a flag so that, in narrow mode, details-only navigation doesn't occur if
// the CurrentArticle is changed solely as a side-effect of changing the CurrentFeed.
if (e.PropertyName == nameof(ViewModel.CurrentFeed))
{
isCurrentFeedNew = true;
}
else if (e.PropertyName == nameof(ViewModel.CurrentArticle))
{
if (ViewModel.CurrentArticle != null)
{
ArticleWebView.Navigate(ViewModel.CurrentArticle.Link);
}
else
{
ArticleWebView.NavigateToString(string.Empty);
}
if (AdaptiveStates.CurrentState == NarrowState)
{
bool switchToDetailsView = !isCurrentFeedNew;
isCurrentFeedNew = false;
if (switchToDetailsView)
{
// Use "drill in" transition for navigating from master list to detail view
Frame.Navigate(typeof(DetailPage), null, new DrillInNavigationTransitionInfo());
}
}
}
}
private void Address_OnTapped(object sender, TappedRoutedEventArgs e)
{
var tblk = sender as TextBlock;
Uri targetUri = new Uri(tblk.Text);
ArticleWebView.Navigate(targetUri);
}
private async Task loadArticle()
{
//var uri = new Uri(ArticleAdressBeg + SelectedArticle.ID);
/*var uri = new Uri(SelectedArticle.link);
* var HttpClient = new HttpClient();
* string resultHTML = "";
* string finalHTML = "";
*
* // Always catch network exceptions for async methods
* try
* {
* resultHTML = await HttpClient.GetStringAsync(uri);
* }
* catch (Exception ex)
* {
* // TODO
* }
*
*
* HtmlDocument htmlDoc = new HtmlDocument();
* htmlDoc.LoadHtml(resultHTML);
* HtmlNode node = htmlDoc.GetElementbyId("content");
* HtmlNodeCollection nodeCollection = node.ChildNodes;
* foreach (HtmlNode child in nodeCollection)
* {
* if (child.Name.Equals("article"))
* {
* HtmlNodeCollection articleNodeCollection = child.ChildNodes;
* foreach (HtmlNode articleChild in articleNodeCollection)
* {
* if (articleChild.GetAttributeValue("class", "").Equals("entry-content"))
* {*/
// finalHTML = articleChild.OuterHtml;
/*HtmlNodeCollection contentNodeCollection = child.ChildNodes;
* foreach (HtmlNode contentChild in contentNodeCollection)
* {
* if (contentChild.Name.Equals("p"))
* {
* finalHTML += contentChild.OuterHtml;
* }
* }*/
/*}
* }
* }
* }*/
//this.ArticleWebView.Height = 0;
//string finalHtml = (String)uri
Uri uri = new Uri(ArticleAdressBeg + SelectedArticle.ID);
ArticleWebView.Navigate(uri);
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (ViewModel.CurrentArticle != null)
{
ArticleWebView.Navigate(ViewModel.CurrentArticle.Link);
}
// Register for hardware and software back request from the system
SystemNavigationManager systemNavigationManager = SystemNavigationManager.GetForCurrentView();
systemNavigationManager.BackRequested += DetailPage_BackRequested;
systemNavigationManager.AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
ViewModel.IsHamburgerMenuVisible = false;
}
public MasterDetailPage()
{
InitializeComponent();
bool isCurrentFeedNew = false;
ViewModel.PropertyChanged += (s, e) =>
{
// Set a flag so that, in narrow mode, details-only navigation doesn't occur if
// the CurrentArticle is changed solely as a side-effect of changing the CurrentFeed.
if (e.PropertyName == nameof(ViewModel.CurrentFeed))
{
isCurrentFeedNew = true;
}
else if (e.PropertyName == nameof(ViewModel.CurrentArticle))
{
if (isCurrentFeedNew)
{
isCurrentFeedNew = false;
if (AdaptiveStates.CurrentState == NarrowState)
{
return;
}
}
if (AdaptiveStates.CurrentState == NarrowState && !isCurrentFeedNew)
{
// Use "drill in" transition for navigating from master list to detail view
Frame.Navigate(typeof(DetailPage), null, new DrillInNavigationTransitionInfo());
}
else
{
if (ViewModel.CurrentArticle != null)
{
ArticleWebView.Navigate(ViewModel.CurrentArticle.Link);
}
else
{
ArticleWebView.NavigateToString(string.Empty);
}
isCurrentFeedNew = false;
// Play a refresh animation when the user switches detail items.
//EnableContentTransitions();
}
}
};
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
dataTranferManager.DataRequested += DataTransferManager_DataRequested;
if (ViewModel.CurrentArticle != null)
{
if (ViewModel.CurrentArticle.Link?.WithoutScheme() != ArticleWebView.Source?.WithoutScheme())
{
ArticleWebView.Navigate(ViewModel.CurrentArticle.Link);
}
else
{
ArticleWebView.Visibility = Visibility.Visible;
}
}
var backStack = Frame.BackStack;
var backStackCount = backStack.Count;
if (backStackCount > 0)
{
var masterPageEntry = backStack[backStackCount - 1];
backStack.RemoveAt(backStackCount - 1);
// Clear the navigation parameter so that navigation back to the
// MasterDetail page won't reset the current article selection.
var modifiedEntry = new PageStackEntry(
masterPageEntry.SourcePageType,
null,
masterPageEntry.NavigationTransitionInfo
);
backStack.Add(modifiedEntry);
}
// Register for hardware and software back request from the system
SystemNavigationManager systemNavigationManager = SystemNavigationManager.GetForCurrentView();
systemNavigationManager.BackRequested += DetailPage_BackRequested;
systemNavigationManager.AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
ViewModel.IsInDetailsMode = true;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (e.Parameter is Uri || e.Parameter == null ||
(e.Parameter is string && String.IsNullOrEmpty(e.Parameter as string)))
{
if (MasterFrame.CurrentSourcePageType != typeof(FeedView))
{
MasterFrame.Navigate(typeof(FeedView));
}
var feedUri = e.Parameter as Uri;
if (feedUri != null)
{
var feed = ViewModel.Feeds.FirstOrDefault(f => f.Link == feedUri);
ViewModel.CurrentFeed = feed;
await feed.RefreshAsync();
var article = feed.Articles.FirstOrDefault();
if (article != null)
{
ViewModel.CurrentArticle = article;
ArticleWebView.Navigate(article.Link);
}
}
}
else
{
var viewType = e.Parameter as Type;
if (viewType != null && MasterFrame.CurrentSourcePageType != viewType)
{
MasterFrame.Navigate(viewType);
}
UpdateForVisualState(AdaptiveStates.CurrentState);
}
}