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using System;
using System.ComponentModel;
using System.Windows.Forms;
using JetBrains.Annotations;
using Kaleida.ServiceMonitor.Model;
namespace Kaleida.ServiceMonitor.UI
{
public partial class ScriptEditorControl : UserControl
{
[NotNull]
private IScriptSource script = new NullScriptSource();
public event EventHandler SaveRequested;
public ScriptEditorControl()
{
InitializeComponent();
textBox.TextChanged += TextBoxTextChangedHandler;
textBox.KeyDown += TextBoxKeyDownHandler;
UpdateUI();
}
[NotNull]
[Browsable(false)]
[EditorBrowsable(EditorBrowsableState.Never)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IScriptSource Script
{
get { return script; }
set
{
if (value == null) throw new ArgumentNullException("value");
script = value;
UpdateUI();
}
}
private void TextBoxTextChangedHandler(object sender, EventArgs e)
{
if (textBox.Text != script.Content)
{
script.Content = textBox.Text;
Focus();
}
}
private void TextBoxKeyDownHandler(object sender, KeyEventArgs e)
{
if (e.Control)
{
switch (e.KeyCode)
{
case Keys.A:
textBox.SelectAll();
e.SuppressKeyPress = true;
e.Handled = true;
break;
case Keys.S:
OnSaveRequested(this, EventArgs.Empty);
e.Handled = true;
break;
}
}
base.OnKeyDown(e);
}
private void OnSaveRequested(object sender, EventArgs args)
{
if (SaveRequested != null)
SaveRequested(sender, args);
}
private void UpdateUI()
{
textBox.Enabled = !(script is NullScriptSource);
textBox.Text = script.Content;
}
}
}
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Stuart Wheelwright is the Principal Architect and Software Developer at
BlackJet Software Ltd.
He has over 16 years commercial experience producing robust, maintainable, web-based solutions and bespoke systems for Microsoft platforms.
His latest project is
Shopping UK, an elegantly simple shopping list for iPhone.