[gitg] Add application_support_prepare_startup

[Ignacio Casal Quinteiro <icq src gnome org>]

commit e46658768b36ccd9a721751cd4e80404d7fdec8e
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Dec 22 18:37:36 2015 +0100

    Add application_support_prepare_startup
    
    This is implemented on windows to deal with the console output
    of the application

 gitg/gitg-application.vala            |    2 ++
 libgitg/gitg-platform-support-osx.c   |    5 +++++
 libgitg/gitg-platform-support-win32.c |   27 +++++++++++++++++++++++++++
 libgitg/gitg-platform-support.c       |    5 +++++
 libgitg/gitg-platform-support.h       |    2 ++
 vapi/gitg-platform-support.vapi       |    1 +
 6 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/gitg/gitg-application.vala b/gitg/gitg-application.vala
index f2b8854..b6bd3f4 100644
--- a/gitg/gitg-application.vala
+++ b/gitg/gitg-application.vala
@@ -321,6 +321,8 @@ public class Application : Gtk.Application
        {
                base.startup();
 
+               PlatformSupport.application_support_prepare_startup();
+
                try
                {
                        Gitg.init();
diff --git a/libgitg/gitg-platform-support-osx.c b/libgitg/gitg-platform-support-osx.c
index aa224da..c047107 100644
--- a/libgitg/gitg-platform-support-osx.c
+++ b/libgitg/gitg-platform-support-osx.c
@@ -218,4 +218,9 @@ gitg_platform_support_get_user_home_dir (const gchar *name)
        return g_strdup (pwd->pw_dir);
 }
 
+void
+gitg_platform_support_application_support_prepare_startup (void)
+{
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support-win32.c b/libgitg/gitg-platform-support-win32.c
index 11a3b7d..ca7f725 100644
--- a/libgitg/gitg-platform-support-win32.c
+++ b/libgitg/gitg-platform-support-win32.c
@@ -107,4 +107,31 @@ gitg_platform_support_get_user_home_dir (const gchar *name)
        return NULL;
 }
 
+void
+gitg_platform_support_application_support_prepare_startup (void)
+{
+       /* If we open gedit from a console get the stdout printing */
+       if (fileno (stdout) != -1 &&
+           _get_osfhandle (fileno (stdout)) != -1)
+       {
+               /* stdout is fine, presumably redirected to a file or pipe */
+       }
+       else
+       {
+               typedef BOOL (* WINAPI AttachConsole_t) (DWORD);
+
+               AttachConsole_t p_AttachConsole =
+                       (AttachConsole_t) GetProcAddress (GetModuleHandle ("kernel32.dll"),
+                                                         "AttachConsole");
+
+               if (p_AttachConsole != NULL && p_AttachConsole (ATTACH_PARENT_PROCESS))
+               {
+                       freopen ("CONOUT$", "w", stdout);
+                       dup2 (fileno (stdout), 1);
+                       freopen ("CONOUT$", "w", stderr);
+                       dup2 (fileno (stderr), 2);
+               }
+       }
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support.c b/libgitg/gitg-platform-support.c
index 483b798..9f2e9f8 100644
--- a/libgitg/gitg-platform-support.c
+++ b/libgitg/gitg-platform-support.c
@@ -145,4 +145,9 @@ gitg_platform_support_get_user_home_dir (const gchar *name)
        return g_strdup (pwd->pw_dir);
 }
 
+void
+gitg_platform_support_application_support_prepare_startup (void)
+{
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support.h b/libgitg/gitg-platform-support.h
index 266db4d..1e014c1 100644
--- a/libgitg/gitg-platform-support.h
+++ b/libgitg/gitg-platform-support.h
@@ -52,6 +52,8 @@ gchar        *gitg_platform_support_get_data_dir (void);
 
 gchar        *gitg_platform_support_get_user_home_dir (const gchar *name);
 
+void          gitg_platform_support_application_support_prepare_startup (void);
+
 #endif /* __GITG_PLATFORM_SUPPORT_H__ */
 
 // ex:ts=4 noet
diff --git a/vapi/gitg-platform-support.vapi b/vapi/gitg-platform-support.vapi
index 5071a95..44ee63a 100644
--- a/vapi/gitg-platform-support.vapi
+++ b/vapi/gitg-platform-support.vapi
@@ -19,5 +19,6 @@ namespace Gitg
                public static string get_locale_dir();
                public static string get_data_dir();
                public static string? get_user_home_dir(string? user = null);
+               public static void application_support_prepare_startup();
        }
 }