using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using mshtml;
using SHDocVw;
using System.Threading;
using System.IO;
using System.Windows.Forms;

namespace IEAutomationSample
{
    class Program
    {
        static void Main(string[] args)
        {
            //Run the JavaScript event example.
            bool runJavaScriptExample = false;
            if (runJavaScriptExample)
            {
                JavaScriptEventExample();
                Environment.Exit(0);
            }

            InternetExplorer ieBrowser = new InternetExplorerClass();
            ieBrowser.Visible = true;
            NavigateToUrl(ieBrowser, "http://www.dogpile.com");
            Thread.Sleep(5000);

            //Do stuff here...
            HTMLDocument htmlDoc = (HTMLDocument)ieBrowser.Document;
            string pageTitle = htmlDoc.title;
            Console.WriteLine(pageTitle);

            IHTMLInputTextElement textBox = (IHTMLInputTextElement)htmlDoc.getElementById("icePage_SearchBoxTop_qkw");
            textBox.value = "powered by awesome";

            HTMLInputButtonElement submitButton = (HTMLInputButtonElement)htmlDoc.getElementById("icePage_SearchBoxTop_qkwsubmit");
            submitButton.click();
            Thread.Sleep(5000);

            htmlDoc = (HTMLDocument)ieBrowser.Document;

            Console.WriteLine("Links by tag name:");
            foreach(IHTMLElement anchorElement in htmlDoc.getElementsByTagName("a"))
            {
                if(anchorElement.className == "resultLink")
                {
                    Console.WriteLine(anchorElement.innerText);
                }
            }

            Console.WriteLine("Links by result walking:");
            IHTMLElement resultContainerDiv = htmlDoc.getElementById("icePage_SearchResults_ResultsRepeaterByRelevance_ResultRepeaterContainerWeb");
            foreach (HTMLDivElement resultDiv in (IHTMLElementCollection)resultContainerDiv.children)
            {
                IHTMLElement resultLink = (IHTMLElement)resultDiv.firstChild;
                Console.WriteLine(resultLink.innerText);
            }

            Console.WriteLine("img src:");
            foreach (IHTMLImgElement imgElement in htmlDoc.getElementsByTagName("img"))
            {
                Console.WriteLine(imgElement.src);
            }

            Console.WriteLine("img src 2:");
            foreach (IHTMLImgElement imgElement in htmlDoc.images)
            {
                Console.WriteLine(imgElement.src);
            }

            foreach (HTMLDivElement divElement in htmlDoc.getElementsByTagName("div"))
            {
                divElement.runtimeStyle.borderStyle = "groove";
                divElement.runtimeStyle.borderWidth = "3";
            }    

            Thread.Sleep(5000);
            ieBrowser.Quit();
        }

        public static void NavigateToUrl(InternetExplorer ieBrowser, string url)
        {
            object nullObject = null;
            ieBrowser.Navigate(url, ref nullObject, ref nullObject, ref nullObject, ref nullObject);
        }

        public static void JavaScriptEventExample()
        {
            InternetExplorer ieBrowser = new InternetExplorerClass();
            ieBrowser.Visible = true;
            string localUrl = Path.Combine(Environment.CurrentDirectory, "JavaScriptSample.html");
            NavigateToUrl(ieBrowser, localUrl);
            Thread.Sleep(1000);

            HTMLDocument htmlDoc = (HTMLDocument)ieBrowser.Document;

            HTMLInputTextElement textBox = (HTMLInputTextElement)htmlDoc.getElementById("textbox");
            textBox.value = "powered by awesome";
            
            HTMLInputButtonElement submitButton = (HTMLInputButtonElement)htmlDoc.getElementById("submitbutton");
            submitButton.click();
            Thread.Sleep(5000);

            textBox.focus();
            SendKeys.SendWait("this triggers keypress/onchange");
            submitButton.focus();

            Thread.Sleep(5000);

            ieBrowser.Quit();
        }
    }
}