diff options
Diffstat (limited to 'src/exporter.cpp')
| -rw-r--r-- | src/exporter.cpp | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/exporter.cpp b/src/exporter.cpp new file mode 100644 index 0000000..8288b9a --- /dev/null +++ b/src/exporter.cpp @@ -0,0 +1,217 @@ +/* + * Copyright 2014 Canonical Ltd. + * + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 3, as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranties of + * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR + * PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Authors: + * Charles Kerr <charles.kerr@canonical.com> + */ + +#include <src/exporter.h> + +class Exporter::Impl +{ +public: + + Impl(const std::shared_ptr<Indicator>& indicator): + m_indicator(indicator) + { + auto bus_name = g_strdup_printf("com.canonical.indicator.%s", indicator->name()); + 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); + + g_free(bus_name); + } + + ~Impl() + { + if (m_bus != nullptr) + { + for(const auto& id : m_exported_menu_ids) + g_dbus_connection_unexport_menu_model(m_bus, id); + + 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); + + g_clear_object(&m_bus); + } + + core::Signal<std::string>& name_lost() + { + return m_name_lost; + } + +private: + + void emit_name_lost(const char* bus_name) + { + m_name_lost(bus_name); + } + + static void on_bus_acquired(GDBusConnection * connection, + const gchar * name, + gpointer gself) + { + static_cast<Impl*>(gself)->on_bus_acquired(connection, name); + } + + void on_bus_acquired(GDBusConnection* connection, const gchar* /*name*/) + { + m_bus = G_DBUS_CONNECTION(g_object_ref(G_OBJECT(connection))); + + export_actions(m_indicator); + + for (auto& profile : m_indicator->profiles()) + export_profile(m_indicator, profile); + } + + void export_actions(const std::shared_ptr<Indicator>& indicator) + { + GError* error; + char* object_path; + guint id; + + // export the actions + + error = nullptr; + object_path = g_strdup_printf("/com/canonical/indicator/%s", indicator->name()); + id = g_dbus_connection_export_action_group(m_bus, + object_path, + G_ACTION_GROUP(indicator->action_group()), + &error); + if (id) + m_exported_actions_id = id; + else + g_warning("Can't export action group to '%s': %s", object_path, error->message); + + g_clear_error(&error); + g_free(object_path); + } + + static GVariant* create_header_state(const Header& h) + { + GVariantBuilder b; + g_variant_builder_init(&b, G_VARIANT_TYPE_VARDICT); + + g_variant_builder_add(&b, "{sv}", "visible", g_variant_new_boolean(h.is_visible)); + + if (!h.title.empty()) + g_variant_builder_add(&b, "{sv}", "title", g_variant_new_string(h.title.c_str())); + + if (!h.label.empty()) + g_variant_builder_add(&b, "{sv}", "label", g_variant_new_string(h.label.c_str())); + + if (!h.title.empty() || !h.label.empty()) + g_variant_builder_add(&b, "{sv}", "accessible-desc", g_variant_new_string(!h.label.empty() ? h.label.c_str() : h.title.c_str())); + + if (h.icon) + g_variant_builder_add(&b, "{sv}", "icon", g_icon_serialize(h.icon.get())); + + return g_variant_builder_end (&b); + } + + void export_profile(const std::shared_ptr<Indicator>& indicator, + const std::shared_ptr<Profile>& profile) + { + // build the header action + auto action_group = indicator->action_group(); + std::string action_name = profile->name() + "-header"; + auto a = g_simple_action_new_stateful(action_name.c_str(), nullptr, create_header_state(profile->header())); + g_action_map_add_action(G_ACTION_MAP(action_group), G_ACTION(a)); + profile->header().changed().connect([action_group,action_name](const Header& header){ + auto state = create_header_state(header); + auto tmp = g_variant_print(state, true); + g_message("header changed; updating action state to '%s'", tmp); + g_action_group_change_action_state(G_ACTION_GROUP(action_group), + action_name.c_str(), + create_header_state(header)); + g_free(tmp); + }); + + // build the header menu + auto detailed_action = g_strdup_printf("indicator.%s", action_name.c_str()); + GMenuItem* header = g_menu_item_new(nullptr, detailed_action); + g_menu_item_set_attribute(header, "x-canonical-type", "s", "com.canonical.indicator.root"); + g_menu_item_set_submenu(header, profile->menu_model().get()); + g_free(detailed_action); + + // build the menu + auto menu = g_menu_new(); + g_menu_append_item(menu, header); + g_object_unref(header); + + // export the menu + auto object_path = g_strdup_printf("/com/canonical/indicator/%s/%s", + indicator->name(), + profile->name().c_str()); + GError* error = nullptr; + auto id = g_dbus_connection_export_menu_model(m_bus, object_path, G_MENU_MODEL(menu), &error); + if (id) + m_exported_menu_ids.insert(id); + else if (error != nullptr) + g_warning("cannot export '%s': %s", object_path, error->message); + + g_free(object_path); + g_clear_error(&error); + //g_object_unref(menu); + } + + static void on_name_lost(GDBusConnection * /*connection*/, + const gchar * name, + gpointer gthis) + { + static_cast<Impl*>(gthis)->emit_name_lost(name); + } + + const std::string m_bus_name; + core::Signal<std::string> m_name_lost; + std::shared_ptr<Indicator> m_indicator; + std::set<guint> m_exported_menu_ids; + guint m_own_id = 0; + guint m_exported_actions_id = 0; + GDBusConnection * m_bus = nullptr; +}; + +/*** +**** +***/ + +Exporter::Exporter(const std::shared_ptr<Indicator>& indicator): + impl(new Impl(indicator)) +{ +} + +Exporter::~Exporter() +{ +} + +core::Signal<std::string>& +Exporter::name_lost() +{ + return impl->name_lost(); +} + +/*** +**** +***/ + |