using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.ApplicationModel.Activation;
using Windows.ApplicationModel.DataTransfer;
using Windows.ApplicationModel.DataTransfer.ShareTarget;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234237

namespace RichTextBoxShare
{
    /// <summary>
    /// A basic page that provides characteristics common to most applications.
    /// </summary>
    public sealed partial class SharePage : RichTextBoxShare.Common.LayoutAwarePage
    {
        public SharePage()
        {
            this.InitializeComponent();
        }

        protected override async void OnNavigatedTo(NavigationEventArgs e)
        {
            ShareOperation shareOperation = (ShareOperation)e.Parameter;

            if (shareOperation.Data.Contains(StandardDataFormats.Html))
            {
                try
                {
                    string html = HtmlFormatHelper.GetStaticFragment(await shareOperation.Data.GetHtmlFormatAsync());
                    rtb.SetHtml(html, null);
                }
                catch (Exception ex)
                {
                    rtb.Text = "Failed to get html.";
                }

            }
            else if (shareOperation.Data.Contains(StandardDataFormats.Text))
            {
                try
                {
                    rtb.Text = await shareOperation.Data.GetTextAsync();
                }
                catch (Exception ex)
                {
                    rtb.Text = "Failed to get text.";
                }
            }
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
        {
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="pageState">An empty dictionary to be populated with serializable state.</param>
        protected override void SaveState(Dictionary<String, Object> pageState)
        {
        }
    }
}
