public NewFilterDialog(IServiceProvider serviceProvider, IsapiFiltersItem existing, IsapiFiltersFeature feature)
: base(serviceProvider)
{
InitializeComponent();
Text = existing == null ? "Add ISAPI Filter" : "Edit ISAPI Filter";
txtName.ReadOnly = existing != null;
Item = existing ?? new IsapiFiltersItem(null);
if (existing != null)
{
txtPath.Text = Item.Path;
txtName.Text = Item.Name;
}
var container = new CompositeDisposable();
FormClosed += (sender, args) => container.Dispose();
container.Add(
Observable.FromEventPattern <EventArgs>(btnOK, "Click")
.ObserveOn(System.Threading.SynchronizationContext.Current)
.Subscribe(evt =>
{
Item.Path = txtPath.Text;
Item.Name = txtName.Text;
if (!txtName.ReadOnly && feature.Items.Any(item => item.Match(Item)))
{
ShowMessage(
"A filter with this name already exists.",
MessageBoxButtons.OK,
MessageBoxIcon.Error,
MessageBoxDefaultButton.Button1);
return;
}
try
{
var bit32Condition = "bitness32";
var bit64Condition = "bitness64";
var bit32 = DialogHelper.GetImageArchitecture(txtPath.Text);
if (bit32 && !Item.PreConditions.Contains(bit32Condition))
{
Item.PreConditions.Add(bit32Condition);
}
else if (!bit32 && !Item.PreConditions.Contains(bit64Condition))
{
Item.PreConditions.Add(bit64Condition);
}
}
catch (Exception)
{
ShowMessage(
"The specific filter is invalid.",
MessageBoxButtons.OK,
MessageBoxIcon.Error,
MessageBoxDefaultButton.Button1);
return;
}
DialogResult = DialogResult.OK;
}));
container.Add(
Observable.FromEventPattern <EventArgs>(txtName, "TextChanged")
.Merge(Observable.FromEventPattern <EventArgs>(txtPath, "TextChanged"))
.Sample(TimeSpan.FromSeconds(0.5))
.ObserveOn(System.Threading.SynchronizationContext.Current)
.Subscribe(evt =>
{
btnOK.Enabled = !string.IsNullOrWhiteSpace(txtName.Text) &&
!string.IsNullOrWhiteSpace(txtPath.Text);
}));
container.Add(
Observable.FromEventPattern <EventArgs>(btnBrowse, "Click")
.ObserveOn(System.Threading.SynchronizationContext.Current)
.Subscribe(evt =>
{
DialogHelper.ShowOpenFileDialog(txtPath, "(*.dll)|*.dll|All Files (*.*)|*.*", null);
}));
container.Add(
Observable.FromEventPattern <CancelEventArgs>(this, "HelpButtonClicked")
.ObserveOn(System.Threading.SynchronizationContext.Current)
.Subscribe(EnvironmentVariableTarget =>
{
feature.ShowHelp();
}));
}
protected override bool ShowHelp()
{
_feature.ShowHelp();
return(true);
}