SearchHighlight.cs :  » Bloggers » dasBlog » newtelligence » DasBlog » Web » Core » C# / CSharp Open Source

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using newtelligence.DasBlog.Runtime;
using System.IO;

namespace newtelligence.DasBlog.Web.Core{
  /// <summary>
  /// Summary description for SearchHighlight.
  /// </summary>
  [DefaultProperty("Text"), 
    ToolboxData("<{0}:SearchHighlight runat=server></{0}:SearchHighlight>")]
  public class SearchHighlight : System.Web.UI.WebControls.WebControl
  {
    private string text;
  
    [Bindable(true), 
      Category("Appearance"), 
      DefaultValue("")] 
    public string Text 
    {
      get
      {
        return text;
      }

      set
      {
        text = value;
      }
    }

    protected override void OnPreRender(EventArgs e)
    {
      base.OnPreRender (e);

      SharedBasePage requestPage = Page as SharedBasePage;

      if ( !Page.ClientScript.IsClientScriptBlockRegistered(this.GetType(),"script"))
      {
        string script;
        using ( StreamReader rs = new StreamReader(GetType().Assembly.GetManifestResourceStream(GetType().Namespace+".SearchHighlightJS.txt")) )
        {
          script = rs.ReadToEnd();
        }

        script = script.Replace("<%siteRoot%>", requestPage.SiteConfig.Root);

        Page.ClientScript.RegisterClientScriptBlock(this.GetType(),"script",
          String.Format("<script type=\"text/javascript\">\n<!--\n{0}\n// -->\n</script>",script));
      }

      if ( !Page.ClientScript.IsClientScriptBlockRegistered(this.GetType(),"style"))
      {
        string script;
        using ( StreamReader rs = new StreamReader(GetType().Assembly.GetManifestResourceStream(GetType().Namespace+".SearchHighlightCSS.txt")) )
        {
          script = rs.ReadToEnd();
        }
                Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "style", "");
                requestPage.InsertInPageHeader(String.Format("<style type=\"text/css\">{0}</style>", script));
      }
    }


    /// <summary> 
    /// Render this control to the output parameter specified.
    /// </summary>
    /// <param name="output"> The HTML writer to write out to </param>
    protected override void Render(HtmlTextWriter output)
    {
      output.Write(Text);
    }
  }
}