using System;
using System.ComponentModel;
using System.Windows.Forms;
using HeuristicLab.Core.Views;
using HeuristicLab.MainForm;
using HeuristicLab.PluginInfrastructure;

namespace HeuristicLab.Clients.Hive.Views {
  [View("HiveItem View")]
  [Content(typeof(HiveItem), IsDefaultView = false)]
  [Content(typeof(IHiveItem), IsDefaultView = false)]
  public partial class HiveItemView : ItemView {
    public new IHiveItem Content {
      get { return (IHiveItem)base.Content; }
      set { base.Content = value; }
    }

    public HiveItemView() {
      InitializeComponent();
    }

    protected override void DeregisterContentEvents() {
      Content.PropertyChanged -= new PropertyChangedEventHandler(Content_PropertyChanged);
      Content.ModifiedChanged -= new EventHandler(Content_ModifiedChanged);
      base.DeregisterContentEvents();
    }
    protected override void RegisterContentEvents() {
      base.RegisterContentEvents();
      Content.PropertyChanged += new PropertyChangedEventHandler(Content_PropertyChanged);
      Content.ModifiedChanged += new EventHandler(Content_ModifiedChanged);
    }

    protected override void SetEnabledStateOfControls() {
      base.SetEnabledStateOfControls();
      storeButton.Enabled = (Content != null) && !ReadOnly && Content.Modified;
    }

    private void Content_PropertyChanged(object sender, PropertyChangedEventArgs e) {
      if (InvokeRequired)
        Invoke(new PropertyChangedEventHandler(Content_PropertyChanged), sender, e);
      else {
        OnContentPropertyChanged(e.PropertyName);
      }
    }
    protected virtual void OnContentPropertyChanged(string propertyName) { }
    protected virtual void Content_ModifiedChanged(object sender, EventArgs e) {
      if (InvokeRequired)
        Invoke(new EventHandler(Content_ModifiedChanged), sender, e);
      else
        SetEnabledStateOfControls();
    }

    protected virtual void storeButton_Click(object sender, EventArgs e) {
      try {
        Content.Store();
      }
      catch (Exception ex) {
        ErrorHandling.ShowErrorDialog(this, "Store failed.", ex);
      }
    }
  }
}