[gtk+] Port gtk_show_uri_on_window to gtk_window_export_handle

[Matthias Clasen <matthiasc src gnome org>]

commit 936c1649dea3cd9b686fdd05949f45777c3b2335
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jul 26 15:44:49 2016 -0400

    Port gtk_show_uri_on_window to gtk_window_export_handle
    
    As part of this, make it use the new
    g_app_info_launch_default_for_uri_async, since we need a way
    to unexport the window handle afterwards.

 gtk/gtkshow.c |   57 +++++++++++++++++++++++++++++++++++----------------------
 1 files changed, 35 insertions(+), 22 deletions(-)
---
diff --git a/gtk/gtkshow.c b/gtk/gtkshow.c
index c237405..0a00e5a 100644
--- a/gtk/gtkshow.c
+++ b/gtk/gtkshow.c
@@ -23,10 +23,7 @@
 #include <gdk/gdk.h>
 
 #include "gtkshow.h"
-
-#ifdef GDK_WINDOWING_X11
-#include "x11/gdkx.h"
-#endif
+#include "gtkwindowprivate.h"
 
 /**
  * gtk_show_uri:
@@ -80,6 +77,36 @@ gtk_show_uri (GdkScreen    *screen,
   return ret;
 }
 
+static void
+launch_uri_done (GObject      *source,
+                 GAsyncResult *result,
+                 gpointer      data)
+{
+  GtkWindow *window = data;
+
+  g_app_info_launch_default_for_uri_finish (result, NULL);
+
+  if (window)
+    gtk_window_unexport_handle (window);
+}
+
+static void
+window_handle_exported (GtkWindow  *window,
+                        const char *handle_str,
+                        gpointer    user_data)
+{
+  GAppLaunchContext *context = user_data;
+  const char *uri;
+
+  uri = (const char *)g_object_get_data (G_OBJECT (context), "uri");
+
+  g_app_launch_context_setenv (context, "PARENT_WINDOW_ID", handle_str);
+
+  g_app_info_launch_default_for_uri_async (uri, G_APP_LAUNCH_CONTEXT (context), NULL, launch_uri_done, 
window);
+
+  g_object_unref (context);
+}
+
 /**
  * gtk_show_uri_on_window:
  * @parent: (allow-none): parent window
@@ -113,28 +140,14 @@ gtk_show_uri_on_window (GtkWindow   *parent,
     display = gdk_display_get_default ();
 
   context = gdk_display_get_app_launch_context (display);
+  gdk_app_launch_context_set_timestamp (context, timestamp);
 
-  if (parent)
-    {
-      GdkWindow *window = gtk_widget_get_window (GTK_WIDGET (parent));
-#ifdef GDK_WINDOWING_X11
-      if (GDK_IS_X11_WINDOW(window))
-        {
-          char *parent_window_str;
-
-          parent_window_str = g_strdup_printf ("x11:%x", (guint32)gdk_x11_window_get_xid (window));
-          g_app_launch_context_setenv (G_APP_LAUNCH_CONTEXT (context),
-                                       "PARENT_WINDOW_ID",
-                                       parent_window_str);
-          g_free (parent_window_str);
-        }
-#endif
-    }
+  g_object_set_data_full (G_OBJECT (context), "uri", g_strdup (uri), g_free);
 
-  gdk_app_launch_context_set_timestamp (context, timestamp);
+  if (parent && gtk_window_export_handle (parent, window_handle_exported, context))
+    return TRUE;
 
   ret = g_app_info_launch_default_for_uri (uri, G_APP_LAUNCH_CONTEXT (context), error);
-
   g_object_unref (context);
 
   return ret;