[longomatch] Provide link handlers for Message Dialogs.

[Andoni Morales Alastruey <amorales src gnome org>]

commit 9a5cf9cc7999a5f5835b3d6c2402a3aefdec0042
Author: Xavi Artigas <xartigas fluendo com>
Date:   Fri Apr 10 13:00:57 2015 +0200

    Provide link handlers for Message Dialogs.
    
    The first label in the message area of all Message Dialogs (Info, Warning, Error, ...)
    is given a link handler. This allows links to be clicked on Windows. On Linux it was
    already working.

 LongoMatch.GUI.Helpers/GtkGlue.cs         |   10 ++++++++++
 LongoMatch.GUI.Helpers/MessagesHelpers.cs |   18 ++++++++++++++++++
 2 files changed, 28 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.GUI.Helpers/GtkGlue.cs b/LongoMatch.GUI.Helpers/GtkGlue.cs
index bd426f8..d5c2c45 100644
--- a/LongoMatch.GUI.Helpers/GtkGlue.cs
+++ b/LongoMatch.GUI.Helpers/GtkGlue.cs
@@ -28,6 +28,9 @@ namespace LongoMatch
                [DllImport ("libgtk-2.0.dll") /* willfully unmapped */]
                static extern void gtk_menu_item_set_label (IntPtr menu, IntPtr label);
 
+               [DllImport ("libgtk-2.0.dll") /* willfully unmapped */]
+               static extern IntPtr gtk_message_dialog_get_message_area (IntPtr dialog);
+
                [DllImport ("libcesarplayer.dll")]
                static extern void lgm_gtk_glue_gdk_event_button_set_button (IntPtr evt, uint button);
 
@@ -36,6 +39,13 @@ namespace LongoMatch
                        gtk_menu_item_set_label (menu.Handle, GLib.Marshaller.StringToFilenamePtr (label));
                }
 
+               public static VBox MessageDialogGetMessageArea (this MessageDialog dialog)
+               {
+                       IntPtr handle = gtk_message_dialog_get_message_area (dialog.Handle);
+
+                       return new VBox (handle);
+               }
+
 
                public static void SetButton (this EventButton ev, uint button)
                {
diff --git a/LongoMatch.GUI.Helpers/MessagesHelpers.cs b/LongoMatch.GUI.Helpers/MessagesHelpers.cs
index 484f90a..458b246 100644
--- a/LongoMatch.GUI.Helpers/MessagesHelpers.cs
+++ b/LongoMatch.GUI.Helpers/MessagesHelpers.cs
@@ -21,6 +21,7 @@ using System;
 using Gtk;
 using Dialog = Gtk.Dialog;
 using Mono.Unix;
+using LongoMatch.Core.Common;
 
 namespace LongoMatch.Gui.Helpers
 {
@@ -79,6 +80,23 @@ namespace LongoMatch.Gui.Helpers
                                                   ButtonsType.Ok,
                                                   errorMessage);
                        md.Icon = Misc.LoadIcon ("longomatch", Gtk.IconSize.Dialog, 0);
+                       try {
+                               var vbox = md.MessageDialogGetMessageArea ();
+                               var label = (Label)vbox.Children [0];
+
+                               label.SetLinkHandler (url => {
+                                       try {
+                                               System.Diagnostics.Process.Start (url);
+                                       } catch (Exception ex) {
+                                               Log.WarningFormat ("Could not spawn process for url {0}\n{1}",
+                                                       url, ex);
+                                       }
+                               });
+                       } catch (Exception ex) {
+                               Log.WarningFormat ("Could not set link handler for Message Dialog\n{0}",
+                                       ex);
+                       }
+
                        ret = md.Run ();
                        md.Destroy ();
                        return ret;