MARKUS

using System.Net;

using System;

using NetSparkleUpdater.Events;

namespace NetSparkleUpdater.Interfaces

{

    /// <summary>

    /// Interface for UI element that shows the progress bar

    /// and a method to install and relaunch the appliction

    /// </summary>

    public interface IDownloadProgress

    {

        /// <summary>

        /// Event to fire when the download UI is complete; tells you 

        /// if the install process should happen or not

        /// </summary>

        event DownloadInstallEventHandler DownloadProcessCompleted;

        /// <summary>

        /// Enable or disable the download and install button (such as when your "Can I gracefully close the window?" function is async and you don't

        /// want your user to click the button multiple times)

        /// </summary>

        /// <param name="shouldBeEnabled">True if the button should be enabled; false otherwise</param>

        void SetDownloadAndInstallButtonEnabled(bool shouldBeEnabled);

        /// <summary>

        /// Show the UI for download progress

        /// </summary>

        /// <returns>True if download was successful; false otherwise</returns>

        void Show(bool isOnMainThread);

        /// <summary>

        /// Called when the download progress changes

        /// </summary>

        /// <param name="sender">sender of the progress update</param>

        /// <param name="args">used to deliver info on download progress (e.g. 

        /// total bytes downloaded)</param>

        void OnDownloadProgressChanged(object sender, ItemDownloadProgressEventArgs args);

        /// <summary>

        /// Close the download progress UI

        /// </summary>

        void Close();

        /// <summary>

        /// Update UI to show file is downloaded and signature check result

        /// </summary>

        void FinishedDownloadingFile(bool isDownloadedFileValid);

        /// <summary>

        /// Show an error message in the download progress window if possible.

        /// </summary>

        /// <param name="errorMessage">Error message to display</param>

        /// <returns>True if message displayed; false otherwise</returns>

        bool DisplayErrorMessage(string errorMessage);

    }

}