// Copyright 2007 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI;
using System.Drawing;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Collections.Specialized;
using ESRI.ArcGIS.ADF.Web.UI.WebControls;
using System.ComponentModel;

namespace SimpleTask_CSharp
{
    [ToolboxData("<{0}:SimpleTask_CSharp runat=\"server\" Width=\"100px\" BorderWidth=\"1px\"> </{0}:SimpleTask_CSharp>")]
    [ToolboxBitmap(typeof(SimpleTask_CSharp))]
    [WebConfigurator(typeof(SimpleTaskWebConfigurator_CSharp))]
    [Designer(typeof(SimpleTaskDesigner_CSharp))]
    public class SimpleTask_CSharp: FloatingPanelTask
    {
        private TextBox textBox = null;
        private TextBox phantomTextBox = null;
        private HtmlInputButton button = null;

        [Browsable(true)]
        [Category("Appearance")]
        [DefaultValue("Execute")]
        [PersistenceMode(PersistenceMode.Attribute)]
        public string ButtonText
        {
            get
            {
                object o = StateManager.GetProperty("buttonText");
                return (o == null) ? "Execute" : o as string;
            }
            set
            {
                StateManager.SetProperty("buttonText", value);
            }
        }

        protected override void CreateChildControls()
        {
            Controls.Clear();
            base.CreateChildControls();
            
            textBox = new TextBox();
            textBox.ID = "textBox";

            // The phantom text box is an invisible text box that causes the browser to
            // not do a postback when the enter button is hit.
            phantomTextBox = new TextBox();
            phantomTextBox.ID = "phantomTextBox";
            phantomTextBox.Style[HtmlTextWriterStyle.Display] = "none";

            button = new HtmlInputButton();
            button.ID = "button";
            button.Value = ButtonText;

            Controls.Add(textBox);
            Controls.Add(phantomTextBox);
            Controls.Add(button);

            string getArgumentJS = string.Format("'textBoxValue=' + document.getElementById('{0}').value", textBox.ClientID);
            string onClick = string.Format("executeTask({0},\"{1}\");", getArgumentJS, CallbackFunctionString);
            string onKeyDown = string.Format("if(event.keyCode==13){{{0}return false;}}", onClick);
            button.Attributes.Add("onclick", onClick);
            textBox.Attributes.Add("onkeydown", onKeyDown);
        }

        public override string GetCallbackResult()
        {
            NameValueCollection keyValColl = CallbackUtility.ParseStringIntoNameValueCollection(_callbackArg);
            Input = keyValColl["textBoxValue"];
            return base.GetCallbackResult();
        }

        public override void ExecuteTask()
        {
            Results = null;
            if (Input == null) return;

            string textBoxValue = Input as string;

            string heading = string.Format("The time on the server is {0}", DateTime.Now.ToShortTimeString());
            string detail = string.Format("The value in the text box is: {0}", textBoxValue);
            SimpleTaskResult str = new SimpleTaskResult(heading, detail);
            Results = str;            
        }

        public override void Refresh()
        {
            // we override the Refresh method so that we can assign Input to the
            // TextBox's text before re-rendering.
            string tmp = Input as string;
            if (!string.IsNullOrEmpty(tmp)) textBox.Text = tmp;
            base.Refresh();
        }

        public override List<GISResourceItemDependency> GetGISResourceItemDependencies()
        {
            List<GISResourceItemDependency> list = new List<GISResourceItemDependency>();
            return list;
        }
    }
}