private SAThreadViewEventArgs CreateViewmodel(Uri parameter)
{
// try and parse a thread page from the html
ThreadPageMetadata page = MetadataExtensions.ThreadPageFromUri(parameter);
// since we have a page, create thread metadata from it
ThreadMetadata thread = new ThreadMetadata()
{
ThreadID = page.ThreadID,
Title = page.ThreadTitle,
PageCount = page.LastPage
};
// create binding wrappers
Data.ThreadDataSource threadSource = new Data.ThreadDataSource(thread);
Data.ThreadPageDataObject pageSource = new Data.ThreadPageDataObject(page);
// create viewmodel
ViewModels.ThreadViewModel viewmodel = new ViewModels.ThreadViewModel();
int pageIndex = pageSource.PageNumber - 1;
viewmodel.UpdateModel(threadSource);
viewmodel.Pages[pageIndex] = pageSource;
// set the current page to page source
viewmodel.SelectedItem = viewmodel.Pages[pageIndex];
viewmodel.SelectedIndex = pageIndex;
return(new SAThreadViewEventArgs(viewmodel));
}
protected override object DoWork(int parameter)
{
ThreadViewPageState state = null;
ThreadPageMetadata page = LoadPageFromWeb(parameter);
if (page == null)
{
throw new NullReferenceException("Thread page must not be null.");
}
else
{
var pageData = new Data.ThreadPageDataObject(page);
// mine data about the thread from the page
Thread.Title = page.ThreadTitle;
if (page.LastPage > 0)
{
Thread.PageCount = page.LastPage;
}
// set the selected index to that of the loaded page
SelectedIndex = page.PageNumber - 1;
// create page state and save immeadiately so we don't have to load this again
state = new ThreadViewPageState(Thread, pageData);
try { ThreadViewPageState.Save(state); }
catch (Exception) { }
// setup page proxy and insert page at proper index
SetPages(Thread.PageCount);
Pages[SelectedIndex] = pageData;
}
return(state);
}
