From da980e33f340734c91950d244b980c7d8b5eef95 Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles.kerr@canonical.com>
Date: Thu, 26 Jun 2014 15:55:17 -0500
Subject: Add Exporter's implementation to an Impl file because I'm about to
 shovel more methods and fields in there.

---
 src/exporter.cpp | 170 +++++++++++++++++++++++++++++++++----------------------
 1 file changed, 103 insertions(+), 67 deletions(-)

(limited to 'src/exporter.cpp')

diff --git a/src/exporter.cpp b/src/exporter.cpp
index ccd6e5c..a4919e9 100644
--- a/src/exporter.cpp
+++ b/src/exporter.cpp
@@ -31,108 +31,144 @@ namespace datetime {
 ****
 ***/
 
-Exporter::~Exporter()
+class Exporter::Impl
 {
-    if (m_dbus_connection != nullptr)
-    {
-        for(auto& id : m_exported_menu_ids)
-            g_dbus_connection_unexport_menu_model(m_dbus_connection, id);
+public:
 
-        if (m_exported_actions_id)
-            g_dbus_connection_unexport_action_group(m_dbus_connection, m_exported_actions_id);
+    Impl (Exporter* owner):
+        m_owner(owner)
+    {
     }
 
-    if (m_own_id)
-        g_bus_unown_name(m_own_id);
+    ~Impl()
+    {
+        if (m_bus != nullptr)
+        {
+            for(auto& id : m_exported_menu_ids)
+                g_dbus_connection_unexport_menu_model(m_bus, id);
 
-    g_clear_object(&m_dbus_connection);
-}
+            if (m_exported_actions_id)
+                g_dbus_connection_unexport_action_group(m_bus, m_exported_actions_id);
+        }
 
-/***
-****
-***/
+        if (m_own_id)
+            g_bus_unown_name(m_own_id);
 
-void
-Exporter::on_bus_acquired(GDBusConnection* connection, const gchar* name, gpointer gthis)
-{
-    g_debug("bus acquired: %s", name);
-    static_cast<Exporter*>(gthis)->on_bus_acquired(connection, name);
-}
+        g_clear_object(&m_bus);
+    }
 
-void
-Exporter::on_bus_acquired(GDBusConnection* connection, const gchar* /*name*/)
-{
-    m_dbus_connection = static_cast<GDBusConnection*>(g_object_ref(G_OBJECT(connection)));
-
-    // export the actions
-    GError * error = nullptr;
-    const auto id = g_dbus_connection_export_action_group(m_dbus_connection,
-                                                          BUS_PATH,
-                                                          m_actions->action_group(),
-                                                          &error);
-    if (id)
+    core::Signal<> name_lost;
+
+    void publish(const std::shared_ptr<Actions>& actions,
+                 const std::vector<std::shared_ptr<Menu>>& menus)
     {
-        m_exported_actions_id = id;
+        m_actions = actions;
+        m_menus = menus;
+        m_own_id = g_bus_own_name(G_BUS_TYPE_SESSION,
+                                  BUS_NAME,
+                                  G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT,
+                                  on_bus_acquired,
+                                  nullptr,
+                                  on_name_lost,
+                                  this,
+                                  nullptr);
     }
-    else
+
+private:
+
+    static void on_bus_acquired(GDBusConnection* connection,
+                                const gchar* name,
+                                gpointer gthis)
     {
-        g_warning("cannot export action group: %s", error->message);
-        g_clear_error(&error);
+        g_debug("bus acquired: %s", name);
+        static_cast<Impl*>(gthis)->on_bus_acquired(connection, name);
     }
 
-    // export the menus
-    for(auto& menu : m_menus)
+    void on_bus_acquired(GDBusConnection* bus, const gchar* /*name*/)
     {
-        const auto path = std::string(BUS_PATH) + "/" + menu->name();
-        const auto id = g_dbus_connection_export_menu_model(m_dbus_connection, path.c_str(), menu->menu_model(), &error);
+        m_bus = static_cast<GDBusConnection*>(g_object_ref(G_OBJECT(bus)));
+
+        // export the actions
+        GError * error = nullptr;
+        const auto id = g_dbus_connection_export_action_group(m_bus,
+                                                              BUS_PATH,
+                                                              m_actions->action_group(),
+                                                              &error);
         if (id)
         {
-            m_exported_menu_ids.insert(id);
+            m_exported_actions_id = id;
         }
         else
         {
-            if (error != nullptr)
-                g_warning("cannot export %s menu: %s", menu->name().c_str(), error->message);
+            g_warning("cannot export action group: %s", error->message);
             g_clear_error(&error);
         }
+
+        // export the menus
+        for(auto& menu : m_menus)
+        {
+            const auto path = std::string(BUS_PATH) + "/" + menu->name();
+            const auto id = g_dbus_connection_export_menu_model(m_bus, path.c_str(), menu->menu_model(), &error);
+            if (id)
+            {
+                m_exported_menu_ids.insert(id);
+            }
+            else
+            {
+                if (error != nullptr)
+                    g_warning("cannot export %s menu: %s", menu->name().c_str(), error->message);
+                g_clear_error(&error);
+            }
+        }
     }
-}
+
+    /***
+    ****
+    ***/
+
+    static void on_name_lost(GDBusConnection*, const gchar* name, gpointer gthis)
+    {
+        g_debug("name lost: %s", name);
+        static_cast<Impl*>(gthis)->name_lost();
+    }
+
+    /***
+    ****
+    ***/
+
+    Exporter const * m_owner;
+    std::set<guint> m_exported_menu_ids;
+    guint m_own_id = 0;
+    guint m_exported_actions_id = 0;
+    GDBusConnection* m_bus = nullptr;
+    std::shared_ptr<Actions> m_actions;
+    std::vector<std::shared_ptr<Menu>> m_menus;
+};
+
 
 /***
 ****
 ***/
 
-void
-Exporter::on_name_lost(GDBusConnection* connection, const gchar* name, gpointer gthis)
+Exporter::Exporter():
+    p(new Impl(this))
 {
-    g_debug("name lost: %s", name);
-    static_cast<Exporter*>(gthis)->on_name_lost(connection, name);
 }
 
-void
-Exporter::on_name_lost(GDBusConnection* /*connection*/, const gchar* /*name*/)
+
+Exporter::~Exporter()
 {
-    name_lost();
 }
 
-/***
-****
-***/
+core::Signal<>& Exporter::name_lost()
+{
+    return p->name_lost;
+}
 
-void
-Exporter::publish(const std::shared_ptr<Actions>& actions,
-                  const std::vector<std::shared_ptr<Menu>>& menus)
+void Exporter::publish(const std::shared_ptr<Actions>& actions,
+                       const std::vector<std::shared_ptr<Menu>>& menus)
 {
-    m_actions = actions;
-    m_menus = menus;
-    m_own_id = g_bus_own_name(G_BUS_TYPE_SESSION,
-                              BUS_NAME,
-                              G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT,
-                              on_bus_acquired,
-                              nullptr,
-                              on_name_lost,
-                              this,
-                              nullptr);
+    p->publish(actions, menus);
 }
 
 /***
-- 
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