From ce7cda7a664f88c06759f608aa04a322d2a6c4ed Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles@transmissionbt.com>
Date: Sun, 29 Nov 2009 20:28:35 +0000
Subject: [PATCH] (trunk gtk) #2629 "associate transmission with magnet links"
 -- implemented for GTK+ client on GNOME desktops with GConf2

---
 configure.ac    | 46 +++++++++++++++++++++++++++++++++-------------
 gtk/Makefile.am |  2 ++
 gtk/main.c      | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 13 deletions(-)

diff --git a/configure.ac b/configure.ac
index edad2aea1..f68ed776b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,24 +37,26 @@ else
 fi
 AM_CONDITIONAL(TR_UNSTABLE, test "x$supported_build" = "xno")
 
-OPENSSL_MINIMUM=0.9.4
+CANBERRA_MINIMUM=0.10
+ AC_SUBST(CANBERRA_MINIMUM)
 CURL_MINIMUM=7.16.3
+ AC_SUBST(CURL_MINIMUM)
+DBUS_GLIB_MINIMUM=0.70
+ AC_SUBST(DBUS_GLIB_MINIMUM)
+GCONF2_MINIMUM=2.20.0
+ AC_SUBST(GCONF2_MINIMUM)
 GIO_MINIMUM=2.15.5
+  AC_SUBST(GIO_MINIMUM)
 GLIB_MINIMUM=2.6.0
+  AC_SUBST(GLIB_MINIMUM)
 GTK_MINIMUM=2.6.0
-LIBNOTIFY_MINIMUM=0.4.3
-DBUS_GLIB_MINIMUM=0.70
+  AC_SUBST(GTK_MINIMUM)
 LIBEVENT_MINIMUM=1.4.5
-CANBERRA_MINIMUM=0.10
-AC_SUBST(OPENSSL_MINIMUM)
-AC_SUBST(CURL_MINIMUM)
-AC_SUBST(GIO_MINIMUM)
-AC_SUBST(GLIB_MINIMUM)
-AC_SUBST(GTK_MINIMUM)
-AC_SUBST(LIBNOTIFY_MINIMUM)
-AC_SUBST(DBUS_GLIB_MINIMUM)
-AC_SUBST(LIBEVENT_MINIUM)
-AC_SUBST(CANBERRA_MINIMUM)
+  AC_SUBST(LIBEVENT_MINIUM)
+LIBNOTIFY_MINIMUM=0.4.3
+  AC_SUBST(LIBNOTIFY_MINIMUM)
+OPENSSL_MINIMUM=0.9.4
+  AC_SUBST(OPENSSL_MINIMUM)
 
 AC_PROG_CC
 AC_PROG_CXX
@@ -292,6 +294,23 @@ if test "x$build_gtk" = "xyes"; then
         fi
     fi
 
+    PKG_CHECK_MODULES([LIBGCONF],
+                      [gconf-2.0 >= $GCONF2_MINIMUM],
+                      [have_libgconf=yes],
+                      [have_libgconf=no])
+    AC_ARG_ENABLE([gconf2], 
+                  AS_HELP_STRING([--enable-libgconf],[enable GConf support]),, 
+                  [enable_libgconf=yes]) 
+    use_libgconf=no
+    if test "x$enable_libgconf" = "xyes" ; then
+        if test "x$have_libgconf" = "xyes"; then
+            use_libgconf=yes
+            AC_SUBST(LIBGCONF_LIBS) 
+            AC_SUBST(LIBGCONF_CFLAGS) 
+            AC_DEFINE([HAVE_LIBGCONF], 1) 
+        fi
+    fi
+
     PKG_CHECK_MODULES([DBUS_GLIB],
                       [dbus-glib-1 >= $DBUS_GLIB_MINIMUM],
                       [use_dbus_glib=yes],
@@ -446,6 +465,7 @@ Configuration:
           ... with canberra support:   ${use_canberra}
           ... with gio support:        ${use_gio}
           ... with dbus-glib support:  ${use_dbus_glib}
+          ... with libgconf support:   ${use_libgconf}
           ... with libnotify support:  ${use_libnotify}
         Build Command-Line client:     ${build_cli}
         Build Daemon:                  ${build_daemon}
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index c37658532..cc6e8ed2e 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -22,6 +22,7 @@ AM_CPPFLAGS = \
 AM_CFLAGS = \
     $(LIBEVENT_CFLAGS) \
     $(LIBCANBERRA_CFLAGS) \
+    $(LIBGCONF_CFLAGS) \
     $(GTK_CFLAGS) \
     $(LIBCURL_CFLAGS) \
     $(GIO_CFLAGS) \
@@ -104,6 +105,7 @@ transmission_LDADD = \
     $(top_builddir)/third-party/miniupnp/libminiupnp.a \
     $(top_builddir)/third-party/libnatpmp/libnatpmp.a \
     $(LIBCANBERRA_LIBS) \
+    $(LIBGCONF_LIBS) \
     $(DHT_LIBS) \
     $(GTK_LIBS) \
     $(GIO_LIBS) \
diff --git a/gtk/main.c b/gtk/main.c
index bb227216b..a106633b7 100644
--- a/gtk/main.c
+++ b/gtk/main.c
@@ -123,6 +123,51 @@ static void           prefschanged( TrCore *     core,
 
 static gboolean       updatemodel( gpointer gdata );
 
+/***
+****
+***/
+
+#ifdef HAVE_LIBGCONF
+ #include <gconf/gconf.h>
+ #include <gconf/gconf-client.h>
+#endif
+
+static void
+registerMagnetLinkHandler( void )
+{
+#ifdef HAVE_LIBGCONF
+    GError * err;
+    GConfValue * value;
+    GConfClient * client = gconf_client_get_default( );
+    const char * key = "/desktop/gnome/url-handlers/magnet/command";
+
+    /* if there's already a manget handler registered, don't do anything */
+    value = gconf_client_get( client, key, NULL );
+    if( value != NULL )
+    {
+        gconf_value_free( value );
+        return;
+    }
+
+    err = NULL;
+    if( !gconf_client_set_string( client, key, "transmission '%s'", &err ) )
+    {
+        tr_inf( "Unable to register Transmission as default magnet link handler: \"%s\"", err->message );
+        g_clear_error( &err );
+    }
+    else
+    {
+        gconf_client_set_bool( client, "/desktop/gnome/url-handlers/magnet/needs_terminal", FALSE, NULL );
+        gconf_client_set_bool( client, "/desktop/gnome/url-handlers/magnet/enabled", TRUE, NULL );
+        tr_inf( "Transmission registered as default magnet link handler" );
+    }
+#endif
+}
+
+/***
+****
+***/
+
 struct counts_data
 {
     int    totalCount;
@@ -468,6 +513,9 @@ main( int argc, char ** argv )
             && ( time( NULL ) - pref_int_get( "blocklist-date" ) > ( 60 * 60 * 24 * 7 ) ) )
                 tr_core_blocklist_update( cbdata->core );
 
+        /* if there's no magnet link handler registered, register us */
+        registerMagnetLinkHandler( );
+
         gtk_main( );
     }
     else if( err )
-- 
2.40.0