private async void OnFileListViewSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (FileListView.SelectedItem is FileItem f)
{
if (HitListView.SelectedItem == null || HitListView.SelectedItem is HitItem h && h.Fid != f.Fid)
{
if (f.HitRows > 0 && HitListView.ItemsSource is ObservableCollection <HitItem> hh)
{
HitListView.SelectedItem = hh.Where(x => x.Fid == f.Fid).FirstOrDefault();
}
else
{
HitListView.SelectedItem = null;
}
if (HitListView.SelectedItem == null)
{
await client.OnSelectionChanged(f);
ContentListView.SelectedIndex = 0;
ContentListView.ScrollIntoView(ContentListView.SelectedItem);
ContentListView.SelectedIndex = -1;
}
}
}
}
private async void JumpToButton_Click(object sender, RoutedEventArgs e)
{
int lineNo;
var keyword = JumpToInputBox.Text.Trim();
var succ = int.TryParse(keyword, out lineNo);
if (succ)
{
if (lineNo >= 1 && lineNo <= ViewModel.Contents.Count)
{
ContentListView.ScrollIntoView(ContentListView.Items[lineNo - 1], ScrollIntoViewAlignment.Leading);
}
else
{
MessageDialog dialog = new MessageDialog("Line No out of range", "Jump Failed");
await dialog.ShowAsync();
}
}
else
{
lineNo = GetCurrentLineNo();
var list = ViewModel.ChapterData.Lines as List <Service.Line>;
lineNo = list.FindIndex(lineNo, l => (l.ContentType == LineContentType.TextContent && l.Content.Contains(keyword)));
if (lineNo >= 0)
{
ContentListView.ScrollIntoView(ContentListView.Items[lineNo], ScrollIntoViewAlignment.Leading);
}
else
{
MessageDialog dialog = new MessageDialog("Cannot find specified keyword", "Jump Failed");
await dialog.ShowAsync();
}
}
}
void ContentListView_SizeChanged(object sender, SizeChangedEventArgs e)
{
int index = (int)ContentListView.GetValue(ContentListViewChangeViewRequestProperty);
if (index >= 0 && e.NewSize.Height > 10 && ContentListView.Items.Count > 0 && index < ContentListView.Items.Count)
{
ContentListView.UpdateLayout();
ContentListView.ScrollIntoView(ViewModel.Contents[index], ScrollIntoViewAlignment.Leading);
index = -1;
ContentListView.SizeChanged -= ContentListView_SizeChanged;
}
}
private async void OnHitListViewSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (HitListView.SelectedItem is HitItem h)
{
await client.OnSelectionChanged(h);
int v = h.Line - 1;
ContentListView.SelectedIndex = v;
ContentListView.ScrollIntoView(ContentListView.SelectedItem);
}
else
{
ContentListView.SelectedIndex = -1;
}
}
void ChangeView(int page, int line = -1)
{
if (line >= 0)
{
ContentListView.UpdateLayout();
if (ContentListView.Items.Count == 0)
{
ContentListView.SetValue(ContentListViewChangeViewRequestProperty, line);
ContentListView.SizeChanged += ContentListView_SizeChanged;
}
else if (line < ContentListView.Items.Count)
{
ContentListView.ScrollIntoView(ViewModel.Contents[line], ScrollIntoViewAlignment.Leading);
}
}
}