[gtk+] Bug 658772: Directory paths for resource directories are hard coded.

[John Ralls <jralls src gnome org>]

commit 6dc34c1f5e744e52fccc23610923d12b492a3c91
Author: John Ralls <jralls ceridwen us>
Date:   Sun Sep 11 16:45:06 2011 -0700

    Bug 658772: Directory paths for resource directories are hard coded.
    
    Provide dynamic path discovery functions as are provided for win32.

 configure.ac     |    9 +++++++
 gtk/gtkprivate.h |    3 +-
 gtk/gtkquartz.c  |   68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2d290f1..f728201 100644
--- a/configure.ac
+++ b/configure.ac
@@ -318,6 +318,11 @@ if test -z "$backend_set"; then
   fi
 fi
 
+AC_ARG_ENABLE(quartz-relocation,
+              [AS_HELP_STRING([--enable-quartz-relocation],
+                              [enable bundle-based relocation functions])],
+                              [quartz_relocation=yes])
+
 cairo_backends=
 backend_immodules=
 GDK_BACKENDS=
@@ -360,6 +365,10 @@ if test "x$enable_quartz_backend" = xyes; then
 #define GDK_WINDOWING_QUARTZ"
   GDK_EXTRA_LIBS="$GDK_EXTRA_LIBS -framework Cocoa"
   AM_CONDITIONAL(USE_QUARTZ, true)
+  if test "x$quartz_relocation" = xyes; then
+    AC_DEFINE([QUARTZ_RELOCATION], [1], [Use NSBundle functions to determine load paths for libraries, translations, etc.])
+  fi
+
 else
   AM_CONDITIONAL(USE_QUARTZ, false)
 fi
diff --git a/gtk/gtkprivate.h b/gtk/gtkprivate.h
index a4754ac..e9cfbc5 100644
--- a/gtk/gtkprivate.h
+++ b/gtk/gtkprivate.h
@@ -33,7 +33,8 @@
 
 G_BEGIN_DECLS
 
-#ifdef G_OS_WIN32
+#if defined G_OS_WIN32 \
+  || (defined GDK_WINDOWING_QUARTZ && defined QUARTZ_RELOCATION)
 
 const gchar *_gtk_get_datadir ();
 const gchar *_gtk_get_libdir ();
diff --git a/gtk/gtkquartz.c b/gtk/gtkquartz.c
index b9ea2ec..e15890e 100644
--- a/gtk/gtkquartz.c
+++ b/gtk/gtkquartz.c
@@ -310,3 +310,71 @@ _gtk_quartz_set_selection_data_for_pasteboard (NSPasteboard     *pasteboard,
                                        freeWhenDone:NO]
                                             forType:type];
 }
+
+/*
+ * Bundle-based functions for various directories. These almost work
+ * even when the application isn't in a bundle, becuase mainBundle
+ * paths point to the bin directory in that case. It's a simple matter
+ * to test for that and remove the last element.
+ */
+
+static gchar *
+get_bundle_path()
+{
+  gchar *base, *path;
+  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+  gchar *resource_path = g_strdup([[[NSBundle mainBundle] resourcePath] UTF8String]);
+  [pool drain];
+  base = g_path_get_basename(resource_path);
+  if (strcmp(base, "bin") == 0) 
+    path = g_path_get_dirname(resource_path);
+  else
+    path = strdup(resource_path);
+  g_free(resource_path);
+  g_free(base);
+  return path;
+}
+
+const gchar *
+_gtk_get_datadir (void)
+{
+  gchar *resource_dir = get_bundle_path();
+  gchar *retval = g_build_filename(resource_dir, "share", NULL);
+  g_free(resource_dir);
+  return retval;
+}
+
+const gchar *
+_gtk_get_libdir (void)
+{
+  gchar *resource_dir = get_bundle_path();
+  gchar *retval = g_build_filename(resource_dir, "lib", NULL);
+  g_free(resource_dir);
+  return retval;
+}
+
+const gchar *
+_gtk_get_localedir (void)
+{
+
+  gchar *resource_dir = get_bundle_path();
+  gchar *retval = g_build_filename(resource_dir, "share", "locale", NULL);
+  g_free(resource_dir);
+  return retval;
+}
+
+const gchar *
+_gtk_get_sysconfdir (void)
+{
+  gchar *resource_dir = get_bundle_path();
+  gchar *retval = g_build_filename(resource_dir, "etc", NULL);
+  g_free(resource_dir);
+  return retval;
+}
+
+const gchar *
+_gtk_get_data_prefix (void)
+{
+  return get_bundle_path();
+}
+