using System;

using System.IO;

using System.Net;

using System.Windows.Forms;

using System.ComponentModel;

using PluginCore.Localization;

using PluginCore.Managers;

using PluginCore.Helpers;

using PluginCore.Controls;

using PluginCore;

namespace FlashDevelop.Dialogs

{

public class UpdateDialog : SmartForm

{

private UpdateInfo updateInfo = null;

private System.Windows.Forms.Label infoLabel;

private System.Windows.Forms.Button closeButton;

private System.Windows.Forms.Button downloadButton;

private System.ComponentModel.BackgroundWorker worker;

private String URL = DistroConfig.DISTRIBUTION_VERSION;

private static Boolean silentCheck = false;

public UpdateDialog()

{

this.Owner = Globals.MainForm;

this.Font = Globals.Settings.DefaultFont;

this.FormGuid = "4d5fdc1c-2698-46e9-b22d-fa9a42ba8d26";

this.InitializeComponent();

this.ApplyLocalizedTexts();

this.InitializeUpdating();

}

#region Windows Form Designer Generated Code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.downloadButton = new System.Windows.Forms.ButtonEx();

this.infoLabel = new System.Windows.Forms.Label();

this.closeButton = new System.Windows.Forms.ButtonEx();

this.SuspendLayout();

//

// downloadButton

//

this.downloadButton.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));

this.downloadButton.Enabled = false;

this.downloadButton.FlatStyle = System.Windows.Forms.FlatStyle.System;

this.downloadButton.Location = new System.Drawing.Point(72, 69);

this.downloadButton.Name = "downloadButton";

this.downloadButton.Size = new System.Drawing.Size(116, 23);

this.downloadButton.TabIndex = 2;

this.downloadButton.Text = "&Download Update";

this.downloadButton.UseVisualStyleBackColor = true;

this.downloadButton.Click += new System.EventHandler(this.DownloadButtonClick);

//

// infoLabel

//

this.infoLabel.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));

this.infoLabel.FlatStyle = System.Windows.Forms.FlatStyle.System;

this.infoLabel.Location = new System.Drawing.Point(13, 13);

this.infoLabel.Name = "infoLabel";

this.infoLabel.Size = new System.Drawing.Size(327, 44);

this.infoLabel.TabIndex = 0;

this.infoLabel.Text = "There is a newer version of FlashDevelop available.\r\n\r\nYour version: *.*.* / Server version: *.*.*";

this.infoLabel.TextAlign = System.Drawing.ContentAlignment.TopCenter;

//

// closeButton

//

this.closeButton.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right)));

this.closeButton.FlatStyle = System.Windows.Forms.FlatStyle.System;

this.closeButton.Location = new System.Drawing.Point(194, 69);

this.closeButton.Name = "closeButton";

this.closeButton.Size = new System.Drawing.Size(84, 23);

this.closeButton.TabIndex = 1;

this.closeButton.Text = "&Close";

this.closeButton.UseVisualStyleBackColor = true;

this.closeButton.Click += new System.EventHandler(this.CloseButtonClick);

//

// UpdateDialog

//

this.CancelButton = this.closeButton;

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(353, 105);

this.Controls.Add(this.closeButton);

this.Controls.Add(this.downloadButton);

this.Controls.Add(this.infoLabel);

this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;

this.MaximizeBox = false;

this.MinimizeBox = false;

this.Name = "UpdateDialog";

this.ShowInTaskbar = false;

this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;

this.Text = " Update Check";

this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.DialogClosed);

this.ResumeLayout(false);

}

#endregion

#region Methods And Event Handlers

/// <summary>

/// Applies the localized texts to the form

/// </summary>

private void ApplyLocalizedTexts()

{

this.Text = " " + TextHelper.GetString("Title.UpdateDialog");

this.infoLabel.Text = TextHelper.GetString("Info.CheckingUpdates");

this.downloadButton.Text = TextHelper.GetString("Label.DownloadUpdate");

this.closeButton.Text = TextHelper.GetString("Label.Close");

}

/// <summary>

/// Downloads the new flashdevelop release

/// </summary>

private void DownloadButtonClick(Object sender, EventArgs e)

{

try

{

String address = this.updateInfo.DownloadUrl;

ProcessHelper.StartAsync(address);

}

catch (Exception ex)

{

ErrorManager.ShowError(ex);

}

this.Close();

}

/// <summary>

/// When the form is closed cancel the update check

/// </summary>

private void DialogClosed(Object sender, FormClosedEventArgs e)

{

if (this.worker.IsBusy)

{

this.worker.CancelAsync();

}

}

/// <summary>

/// Closes the dialog when user clicks buttons

/// </summary>

private void CloseButtonClick(Object sender, EventArgs e)

{

this.Close();

}

/// <summary>

/// Startups the update check

/// </summary>

private void InitializeUpdating()

{

this.worker = new BackgroundWorker();

this.worker.DoWork += new DoWorkEventHandler(this.WorkerDoWork);

this.worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(this.WorkerCompleted);

this.worker.WorkerSupportsCancellation = true;

this.worker.RunWorkerAsync();

}

/// <summary>

/// Does the actual work on background

/// </summary>

private void WorkerDoWork(Object sender, DoWorkEventArgs e)

{

try

{

WebRequest request = WebRequest.Create(URL);

WebResponse response = request.GetResponse();

Stream stream = response.GetResponseStream();

StreamReader reader = new StreamReader(stream);

String version = reader.ReadLine(); // Read version

String download = reader.ReadLine(); // Read download

String product = Application.ProductName; // Internal version

Int32 lenght = DistroConfig.DISTRIBUTION_NAME.Length + 1;

String current = product.Substring(lenght, product.IndexOfOrdinal(" for") - lenght);

stream.Close(); response.Close(); // Close all resources

e.Result = new UpdateInfo(current, version, download);

}

catch (Exception ex)

{

ErrorManager.AddToLog("Update check failed.", ex);

e.Result = null;

}

}

/// <summary>

/// Handles the finish of the update check

/// </summary>

private void WorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)

{

this.updateInfo = (UpdateInfo)e.Result;

if (this.updateInfo == null)

{

String info = TextHelper.GetString("Info.UpdateCheckFailed");

String formatted = String.Format(info, "\n\n");

this.infoLabel.Text = formatted;

if (silentCheck) this.Close();

}

else if (this.updateInfo.NeedsUpdate)

{

this.downloadButton.Enabled = true;

String info = TextHelper.GetString("Info.UpdateAvailable");

String formatted = String.Format(info, "\n\n", this.updateInfo.UserVersion, this.updateInfo.ServerVersion);

this.infoLabel.Text = formatted;

if (silentCheck) this.ShowDialog();

}

else

{

String info = TextHelper.GetString("Info.NoUpdateAvailable");

this.infoLabel.Text = info;

if (silentCheck) this.Close();

}

}

/// <summary>

/// Shows the update dialog

/// </summary>

public static void Show(Boolean silent)

{

silentCheck = silent;

using (UpdateDialog updateDialog = new UpdateDialog())

if (!silentCheck) updateDialog.ShowDialog();

}

#endregion

}

#region UpdateInfo

public class UpdateInfo

{

public String UserVersion = null;

public String ServerVersion = null;

public String DownloadUrl = "http://www.flashdevelop.org/community/viewforum.php?f=11";

public Boolean NeedsUpdate = false;

public UpdateInfo(String userVersion, String serverVersion, String downloadUrl)

{

this.UserVersion = userVersion;

this.ServerVersion = serverVersion;

this.DownloadUrl = downloadUrl;

this.ParseNeedsUpdate();

}

/// <summary>

/// Parses the needs update value from the version strings

/// </summary>

private void ParseNeedsUpdate()

{

try

{

Int32 result = String.Compare(this.UserVersion, this.ServerVersion, true);

this.NeedsUpdate = (result < 0);

}

catch (Exception ex)

{

ErrorManager.ShowError(ex);

}

}

}

#endregion

}