//Event handler for clicking the search button
//shows a loading screen and then creates a task to load the results
//and display them
protected void OnSearchButtonClicked(object sender, EventArgs e)
{
string searchText = searchEntry.Text.Trim();
if (searchText == null || searchText == "")
{
return;
}
//cancel any task that might be running
loadingResultsCancellationSource.Cancel();
string msg = "";
if (showRadioButton.Active)
{
msg = "Searching Shows for " + searchText;
}
else
{
msg = "Searching Movies for " + searchText;
}
showLoadingScreen(msg);
//make a new CancellationSource for a new task
loadingResultsCancellationSource = new CancellationTokenSource();
var cancelToken = loadingResultsCancellationSource.Token;
//Create the task that gets the results from guidebox
Task task = new Task(() => {
cancelToken.ThrowIfCancellationRequested();
List <Show> shows = new List <Show>();
//tv
if (showRadioButton.Active)
{
//get the results from guidebox
shows = GuideBoxAPIWrapper.getTVShowIds(searchText);
cancelToken.ThrowIfCancellationRequested();
//populate the thumbnails
foreach (var show in shows)
{
byte[] thumbNail = getThumbNail(show.thumbURL);
if (thumbNail != null)
{
show.thumb = new Gdk.Pixbuf(thumbNail);
}
}
}
//movies
else
{
//get the results from guidebox
shows = GuideBoxAPIWrapper.getMovieIds(searchText);
cancelToken.ThrowIfCancellationRequested();
//populate the thumbnails
foreach (var show in shows)
{
byte[] thumbNail = getThumbNail(show.thumbURL);
if (thumbNail != null)
{
show.thumb = new Gdk.Pixbuf(thumbNail);
}
}
}
cancelToken.ThrowIfCancellationRequested();
//show the results
Gtk.Application.Invoke(delegate {
embeddedWidget = new ShowResultsWidget(this, shows, 0, true);
addEmbeddedWidgetToContainer();
});
}, cancelToken);
//create the delegate to handle exceptions
task.ContinueWith((t) => {
Gtk.Application.Invoke(delegate {
outputError(t.Exception.InnerException.Message);
});
}, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
}
//starts a task to load most popular shows or movies from guidebox
//then it loads the embeddedWidget
protected void getPopShows(int start)
{
//make a new CancellationSource for a new task
loadingResultsCancellationSource = new CancellationTokenSource();
var cancelToken = loadingResultsCancellationSource.Token;
//Create the task that gets the results from guidebox
Task task = new Task(() => {
cancelToken.ThrowIfCancellationRequested();
List <Show> shows = new List <Show>();
//tv
if (showRadioButton.Active)
{
//get the results from guidebox
shows = GuideBoxAPIWrapper.getTVShowIds(start, maxShowsInEmbeddedWidget, activeSource);
cancelToken.ThrowIfCancellationRequested();
//populate the thumbnails
foreach (var show in shows)
{
byte[] thumbNail = getThumbNail(show.thumbURL);
if (thumbNail != null)
{
show.thumb = new Gdk.Pixbuf(thumbNail);
}
}
}
//movies
else
{
//get the results from guidebox
shows = GuideBoxAPIWrapper.getMovieIds(start, maxShowsInEmbeddedWidget, activeSource);
cancelToken.ThrowIfCancellationRequested();
//populate the thumbnails
foreach (var show in shows)
{
byte[] thumbNail = getThumbNail(show.thumbURL);
if (thumbNail != null)
{
show.thumb = new Gdk.Pixbuf(thumbNail);
}
}
}
cancelToken.ThrowIfCancellationRequested();
//show the results
Gtk.Application.Invoke(delegate {
embeddedWidget = new ShowResultsWidget(this, shows, start, false);
addEmbeddedWidgetToContainer();
});
}, cancelToken);
//create the delegate to handle exceptions
task.ContinueWith((t) => {
Gtk.Application.Invoke(delegate {
outputError(t.Exception.InnerException.Message);
});
}, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
}
