add rotation lock indicator

1 files changed, 178 insertions, 0 deletions

diff --git a/src/rotation-lock.cpp b/src/rotation-lock.cpp
index 0a80085..3bbe12a 100644
--- a/src/rotation-lock.cpp
+++ b/src/rotation-lock.cpp
@@ -17,3 +17,181 @@
  *   Charles Kerr <charles.kerr@canonical.com>
  */
 
+#include <src/rotation-lock.h>
+
+#include <glib/gi18n.h>
+
+class RotationLockIndicator::Impl
+{
+public:
+
+  Impl():
+    m_settings(g_settings_new(m_schema_name)),
+    m_action_group(create_action_group())
+  {
+    // build the rotation lock icon
+    auto icon = g_themed_icon_new_with_default_fallbacks("orientation-lock");
+    auto icon_deleter = [](GIcon* o){g_object_unref(G_OBJECT(o));};
+    m_icon.reset(icon, icon_deleter);
+
+    // build the phone profile
+    auto menu_model_deleter = [](GMenuModel* o){g_object_unref(G_OBJECT(o));};
+    std::shared_ptr<GMenuModel> phone_menu (create_phone_menu(), menu_model_deleter);
+    m_phone = std::make_shared<SimpleProfile>("phone", phone_menu);
+    update_phone_header();
+  }
+
+  ~Impl()
+  {
+    g_clear_object(&m_action_group);
+    g_clear_object(&m_settings);
+  }
+
+  GSimpleActionGroup* action_group() const
+  {
+    return m_action_group;
+  }
+
+  std::vector<std::shared_ptr<Profile>> profiles()
+  {
+    std::vector<std::shared_ptr<Profile>> ret;
+    ret.push_back(m_phone);
+    return ret;
+  }
+
+private:
+
+  /***
+  ****  Actions
+  ***/
+
+  static gboolean settings_to_action_state(GValue *value,
+                                           GVariant *variant,
+                                           gpointer /*unused*/)
+  {
+    bool is_locked = g_strcmp0(g_variant_get_string(variant, nullptr), "none");
+    g_value_set_variant(value, g_variant_new_boolean(is_locked));
+    return TRUE;
+  }
+
+  static GVariant* action_state_to_settings(const GValue *value,
+                                            const GVariantType * /*expected_type*/,
+                                            gpointer /*unused*/)
+  {
+    // Toggling to 'on' *should* lock to the screen's current orientation.
+    // We don't have any way of knowing Screen.orientation in this service,
+    // so just pick one at random to satisfy the binding's needs.
+    //
+    // In practice this doesn't matter since the indicator isn't visible
+    // when the lock mode is 'none' so the end user won't ever be able
+    // to toggle the menuitem from None to anything else.
+
+    auto state_is_true = g_variant_get_boolean(g_value_get_variant(value));
+    return g_variant_new_string(state_is_true ? "PrimaryOrientation" : "none");
+  }
+ 
+  GSimpleActionGroup* create_action_group()
+  {
+    GSimpleActionGroup* group;
+    GSimpleAction* action;
+
+    group = g_simple_action_group_new();
+    action = g_simple_action_new_stateful("rotation-lock",
+                                          nullptr,
+                                          g_variant_new_boolean(false));
+    g_settings_bind_with_mapping(m_settings, "orientation-lock",
+                                 action, "state",
+                                 G_SETTINGS_BIND_DEFAULT,
+                                 settings_to_action_state,
+                                 action_state_to_settings,
+                                 nullptr,
+                                 nullptr);
+    g_action_map_add_action(G_ACTION_MAP(group), G_ACTION(action));
+    g_object_unref(G_OBJECT(action));
+    g_signal_connect_swapped(m_settings, "changed::orientation-lock",
+                             G_CALLBACK(on_orientation_lock_setting_changed), this);
+
+    return group;
+  }
+
+  /***
+  ****  Phone profile
+  ***/
+
+  static void on_orientation_lock_setting_changed (gpointer gself)
+  {
+    static_cast<Impl*>(gself)->update_phone_header();
+  }
+
+  GMenuModel* create_phone_menu()
+  {
+    GMenu* menu;
+    GMenuItem* menu_item;
+
+    menu = g_menu_new();
+
+    menu_item = g_menu_item_new(_("Rotation Lock"), "indicator.rotation-lock");
+    g_menu_item_set_attribute(menu_item, "x-canonical-type", "s", "com.canonical.indicator.switch");
+    g_menu_append_item(menu, menu_item);
+    g_object_unref(menu_item);
+
+    return G_MENU_MODEL(menu);
+  }
+
+  void update_phone_header()
+  {
+    Header h;
+    h.title = _("Rotation lock");
+    h.a11y = h.title;
+    h.is_visible = g_settings_get_enum(m_settings, "orientation-lock") != 0;
+    h.icon = m_icon;
+    m_phone->header().set(h);
+  }
+
+  /***
+  ****
+  ***/
+
+  static constexpr char const * m_schema_name {"com.ubuntu.touch.system"};
+  static constexpr char const * m_orientation_lock_icon_name {"orientation-lock"};
+  GSettings* m_settings = nullptr;
+  GSimpleActionGroup* m_action_group = nullptr;
+  std::shared_ptr<SimpleProfile> m_phone;
+  std::shared_ptr<GIcon> m_icon;
+};
+
+/***
+****
+***/
+
+RotationLockIndicator::RotationLockIndicator():
+    impl(new Impl())
+{
+}
+
+RotationLockIndicator::~RotationLockIndicator()
+{
+}
+
+std::vector<std::shared_ptr<Profile>>
+RotationLockIndicator::profiles() const
+{
+  return impl->profiles();
+}
+
+GSimpleActionGroup*
+RotationLockIndicator::action_group() const
+{
+  return impl->action_group();
+}
+
+const char*
+RotationLockIndicator::name() const
+{
+  return "rotation_lock";
+}
+
+/***
+****
+***/
+