Taking the menu parsing code from appmenu-gtk

2 files changed, 426 insertions, 2 deletions

diff --git a/libdbusmenu-gtk/parser.c b/libdbusmenu-gtk/parser.c
index 98b3f7d..8fd0d12 100644
--- a/libdbusmenu-gtk/parser.c
+++ b/libdbusmenu-gtk/parser.c
@@ -1,9 +1,433 @@
 
 #include "parser.h"
+#include "menuitem.h"
+
+static void accel_changed (GtkWidget *widget, gpointer data);
+static gboolean update_stock_item (DbusmenuMenuitem *menuitem, GtkWidget *widget);
+static void checkbox_toggled (GtkWidget *widget, DbusmenuMenuitem *mi);
+static void update_icon_name (DbusmenuMenuitem *menuitem, GtkWidget *widget);
+static GtkWidget * find_menu_label (GtkWidget *widget);
+static void label_notify_cb (GtkWidget  *widget, GParamSpec *pspec, gpointer    data);
+static void action_notify_cb (GtkAction  *action, GParamSpec *pspec, gpointer    data);
+static void item_activated (DbusmenuMenuitem *item, guint timestamp, gpointer user_data);
+static gboolean item_about_to_show (DbusmenuMenuitem *item, gpointer user_data);
+static void widget_notify_cb (GtkWidget  *widget, GParamSpec *pspec, gpointer    data);
+static gboolean should_show_image (GtkImage *image);
 
 DbusmenuMenuitem *
-dbusmenu_gtk_parse_menu_structure (GtkMenuItem * mi)
+dbusmenu_gtk_parse_menu_structure (GtkWidget * widget)
 {
+  DbusmenuMenuitem *mi = dbusmenu_menuitem_new ();
+
+  if (GTK_IS_MENU_ITEM (widget))
+    {
+      gboolean visible = FALSE;
+      gboolean sensitive = FALSE;
+      if (GTK_IS_SEPARATOR_MENU_ITEM (widget))
+        {
+          dbusmenu_menuitem_property_set (mi,
+                                          "type",
+                                          "separator");
+
+          visible = gtk_widget_get_visible (widget);
+          sensitive = gtk_widget_get_sensitive (widget);
+        }
+      else
+        {
+          gboolean label_set = FALSE;
+
+          g_signal_connect (widget,
+                            "accel-closures-changed",
+                            G_CALLBACK (accel_changed),
+                            mi);
+
+          if (GTK_IS_CHECK_MENU_ITEM (widget))
+            {
+              dbusmenu_menuitem_property_set (mi,
+                                              DBUSMENU_MENUITEM_PROP_TOGGLE_TYPE,
+                                              gtk_check_menu_item_get_draw_as_radio (GTK_CHECK_MENU_ITEM (widget)) ? DBUSMENU_MENUITEM_TOGGLE_RADIO : DBUSMENU_MENUITEM_TOGGLE_CHECK);
+
+              dbusmenu_menuitem_property_set_int (mi,
+                                                  DBUSMENU_MENUITEM_PROP_TOGGLE_STATE,
+                                                  gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (widget)) ? DBUSMENU_MENUITEM_TOGGLE_STATE_CHECKED : DBUSMENU_MENUITEM_TOGGLE_STATE_UNCHECKED);
+
+              g_signal_connect (widget,
+                                "activate",
+                                G_CALLBACK (checkbox_toggled),
+                                mi);
+            }
+
+          if (GTK_IS_IMAGE_MENU_ITEM (widget))
+            {
+              GtkWidget *image;
+              GtkImageType image_type;
+
+              image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (widget));
+
+              if (GTK_IS_IMAGE (image))
+                {
+                  image_type = gtk_image_get_storage_type (GTK_IMAGE (image));
+
+                  if (image_type == GTK_IMAGE_STOCK)
+                    {
+                      label_set = update_stock_item (mi, image);
+                    }
+                  else if (image_type == GTK_IMAGE_ICON_NAME)
+                    {
+                      update_icon_name (mi, image);
+                    }
+                  else if (image_type == GTK_IMAGE_PIXBUF)
+                    {
+                      dbusmenu_menuitem_property_set_image (mi,
+                                                            DBUSMENU_MENUITEM_PROP_ICON_DATA,
+                                                            gtk_image_get_pixbuf (GTK_IMAGE (image)));
+                    }
+                }
+            }
+
+          GtkWidget *label = find_menu_label (widget);
+
+          dbusmenu_menuitem_property_set (mi,
+                                          "label",
+                                          label ? gtk_label_get_text (GTK_LABEL (label)) : NULL);
+
+          if (label)
+            {
+              // Sometimes, an app will directly find and modify the label
+              // (like empathy), so watch the label especially for that.
+              g_signal_connect (G_OBJECT (label),
+                                "notify",
+                                G_CALLBACK (label_notify_cb),
+                                mi);
+            }
+
+          if (GTK_IS_ACTIVATABLE (widget))
+            {
+              GtkActivatable *activatable = GTK_ACTIVATABLE (widget);
+
+              if (gtk_activatable_get_use_action_appearance (activatable))
+                {
+                  GtkAction *action = gtk_activatable_get_related_action (activatable);
+
+                  if (action)
+                    {
+                      visible = gtk_action_is_visible (action);
+                      sensitive = gtk_action_is_sensitive (action);
+
+                      g_signal_connect_object (action, "notify",
+                                               G_CALLBACK (action_notify_cb),
+                                               mi,
+                                               G_CONNECT_AFTER);
+                    }
+                }
+            }
+
+          if (!g_object_get_data (G_OBJECT (widget), "gtk-empty-menu-item") && !GTK_IS_TEAROFF_MENU_ITEM (widget))
+            {
+              visible = gtk_widget_get_visible (widget);
+              sensitive = gtk_widget_get_sensitive (widget);
+            }
+
+          dbusmenu_menuitem_property_set_shortcut_menuitem (mi, GTK_MENU_ITEM (widget));
+
+          g_signal_connect (G_OBJECT (mi),
+                            DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED,
+                            G_CALLBACK (item_activated),
+                            widget);
+
+          g_signal_connect (G_OBJECT (mi),
+                            DBUSMENU_MENUITEM_SIGNAL_ABOUT_TO_SHOW,
+                            G_CALLBACK (item_about_to_show),
+                            widget);
+        }
+
+      dbusmenu_menuitem_property_set_bool (mi,
+                                           DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                           visible);
+
+      dbusmenu_menuitem_property_set_bool (mi,
+                                           DBUSMENU_MENUITEM_PROP_ENABLED,
+                                           sensitive);
+
+      g_signal_connect (widget,
+                        "notify",
+                        G_CALLBACK (widget_notify_cb),
+                        mi);
+    }
+
+  return mi;
 
 	return NULL;
 }
+
+static void
+accel_changed (GtkWidget *widget,
+               gpointer   data)
+{
+  DbusmenuMenuitem *mi = (DbusmenuMenuitem *)data;
+  dbusmenu_menuitem_property_set_shortcut_menuitem (mi, GTK_MENU_ITEM (widget));
+}
+
+static gboolean
+update_stock_item (DbusmenuMenuitem *menuitem,
+                   GtkWidget        *widget)
+{
+  GtkStockItem stock;
+  GtkImage *image;
+
+  g_return_val_if_fail (GTK_IS_IMAGE (widget), FALSE);
+
+  image = GTK_IMAGE (widget);
+
+  if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK)
+    return FALSE;
+
+  gtk_stock_lookup (image->data.stock.stock_id, &stock);
+
+  if (should_show_image (image))
+    dbusmenu_menuitem_property_set (menuitem,
+                                    DBUSMENU_MENUITEM_PROP_ICON_NAME,
+                                    image->data.stock.stock_id);
+  else
+    dbusmenu_menuitem_property_remove (menuitem,
+                                       DBUSMENU_MENUITEM_PROP_ICON_NAME);
+
+  const gchar *label = dbusmenu_menuitem_property_get (menuitem,
+                                                       DBUSMENU_MENUITEM_PROP_LABEL);
+
+  if (stock.label != NULL && label != NULL)
+    {
+      dbusmenu_menuitem_property_set (menuitem,
+                                      DBUSMENU_MENUITEM_PROP_LABEL,
+                                      stock.label);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+checkbox_toggled (GtkWidget *widget, DbusmenuMenuitem *mi)
+{
+  dbusmenu_menuitem_property_set_int (mi,
+                                      DBUSMENU_MENUITEM_PROP_TOGGLE_STATE,
+                                      gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (widget)) ? DBUSMENU_MENUITEM_TOGGLE_STATE_CHECKED : DBUSMENU_MENUITEM_TOGGLE_STATE_UNCHECKED);
+}
+
+static void
+update_icon_name (DbusmenuMenuitem *menuitem,
+                  GtkWidget        *widget)
+{
+  GtkImage *image;
+
+  g_return_if_fail (GTK_IS_IMAGE (widget));
+
+  image = GTK_IMAGE (widget);
+
+  if (gtk_image_get_storage_type (image) != GTK_IMAGE_ICON_NAME)
+    return;
+
+  if (should_show_image (image))
+    dbusmenu_menuitem_property_set (menuitem,
+                                    DBUSMENU_MENUITEM_PROP_ICON_NAME,
+                                    image->data.name.icon_name);
+  else
+    dbusmenu_menuitem_property_remove (menuitem,
+                                       DBUSMENU_MENUITEM_PROP_ICON_NAME);
+}
+
+static GtkWidget *
+find_menu_label (GtkWidget *widget)
+{
+  GtkWidget *label = NULL;
+
+  if (GTK_IS_LABEL (widget))
+    return widget;
+
+  if (GTK_IS_CONTAINER (widget))
+    {
+      GList *children;
+      GList *l;
+
+      children = gtk_container_get_children (GTK_CONTAINER (widget));
+
+      for (l = children; l; l = l->next)
+        {
+          label = find_menu_label (l->data);
+
+          if (label)
+            break;
+        }
+
+      g_list_free (children);
+    }
+
+  return label;
+}
+
+static void
+label_notify_cb (GtkWidget  *widget,
+                 GParamSpec *pspec,
+                 gpointer    data)
+{
+  DbusmenuMenuitem *child = (DbusmenuMenuitem *)data;
+
+  if (pspec->name == g_intern_static_string ("label"))
+    {
+      dbusmenu_menuitem_property_set (child,
+                                      DBUSMENU_MENUITEM_PROP_LABEL,
+                                      gtk_label_get_text (GTK_LABEL (widget)));
+    }
+}
+
+static void
+action_notify_cb (GtkAction  *action,
+                  GParamSpec *pspec,
+                  gpointer    data)
+{
+  DbusmenuMenuitem *mi = (DbusmenuMenuitem *)data;
+
+  if (pspec->name == g_intern_static_string ("sensitive"))
+    {
+      dbusmenu_menuitem_property_set_bool (mi,
+                                           DBUSMENU_MENUITEM_PROP_ENABLED,
+                                           gtk_action_is_sensitive (action));
+    }
+  else if (pspec->name == g_intern_static_string ("visible"))
+    {
+      dbusmenu_menuitem_property_set_bool (mi,
+                                           DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                           gtk_action_is_visible (action));
+    }
+  else if (pspec->name == g_intern_static_string ("active"))
+    {
+      dbusmenu_menuitem_property_set_bool (mi,
+                                           DBUSMENU_MENUITEM_PROP_TOGGLE_STATE,
+                                           gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
+    }
+  else if (pspec->name == g_intern_static_string ("label"))
+    {
+      dbusmenu_menuitem_property_set (mi,
+                                      DBUSMENU_MENUITEM_PROP_LABEL,
+                                      gtk_action_get_label (action));
+    }
+}
+
+static void
+item_activated (DbusmenuMenuitem *item, guint timestamp, gpointer user_data)
+{
+  GtkWidget *child;
+
+  if (user_data != NULL)
+    {
+      child = (GtkWidget *)user_data;
+
+      if (GTK_IS_MENU_ITEM (child))
+        {
+          gtk_menu_item_activate (GTK_MENU_ITEM (child));
+        }
+    }
+}
+
+static gboolean
+item_about_to_show (DbusmenuMenuitem *item, gpointer user_data)
+{
+  GtkWidget *child;
+
+  if (user_data != NULL)
+    {
+      child = (GtkWidget *)user_data;
+
+      if (GTK_IS_MENU_ITEM (child))
+        {
+          // Only called for items with submens.  So we activate it here in
+          // case the program dynamically creates menus (like empathy does)
+          gtk_menu_item_activate (GTK_MENU_ITEM (child));
+        }
+    }
+
+  return TRUE;
+}
+
+static void
+widget_notify_cb (GtkWidget  *widget,
+                  GParamSpec *pspec,
+                  gpointer    data)
+{
+  DbusmenuMenuitem *child = (DbusmenuMenuitem *)data;
+
+  if (pspec->name == g_intern_static_string ("sensitive"))
+    {
+      dbusmenu_menuitem_property_set_bool (child,
+                                           DBUSMENU_MENUITEM_PROP_ENABLED,
+                                           gtk_widget_get_sensitive (widget));
+    }
+  else if (pspec->name == g_intern_static_string ("label"))
+    {
+      dbusmenu_menuitem_property_set (child,
+                                      DBUSMENU_MENUITEM_PROP_LABEL,
+                                      gtk_menu_item_get_label (GTK_MENU_ITEM (widget)));
+    }
+  else if (pspec->name == g_intern_static_string ("visible"))
+    {
+      dbusmenu_menuitem_property_set_bool (child,
+                                           DBUSMENU_MENUITEM_PROP_VISIBLE,
+                                           gtk_widget_get_visible (widget));
+    }
+  else if (pspec->name == g_intern_static_string ("stock"))
+    {
+      update_stock_item (child, widget);
+    }
+  else if (pspec->name == g_intern_static_string ("icon-name"))
+    {
+      update_icon_name (child, widget);
+    }
+  else if (pspec->name == g_intern_static_string ("parent"))
+    {
+      /*
+        * We probably should have added a 'remove' method to the
+        * UbuntuMenuProxy early on, but it's late in the cycle now.
+        */
+      if (gtk_widget_get_parent (widget) == NULL)
+        {
+          g_signal_handlers_disconnect_by_func (widget,
+                                                G_CALLBACK (widget_notify_cb),
+                                                child);
+
+          DbusmenuMenuitem *parent = g_object_get_data (G_OBJECT (child), "dbusmenu-parent");
+
+          if (DBUSMENU_IS_MENUITEM (parent) && DBUSMENU_IS_MENUITEM (child))
+            {
+              dbusmenu_menuitem_child_delete (parent, child);
+            }
+        }
+    }
+}
+
+static gboolean
+should_show_image (GtkImage *image)
+{
+  GtkWidget *item;
+
+  item = gtk_widget_get_ancestor (GTK_WIDGET (image),
+                                  GTK_TYPE_IMAGE_MENU_ITEM);
+
+  if (item)
+    {
+      GtkSettings *settings;
+      gboolean gtk_menu_images;
+
+      settings = gtk_widget_get_settings (item);
+
+      g_object_get (settings, "gtk-menu-images", &gtk_menu_images, NULL);
+
+      if (gtk_menu_images)
+        return TRUE;
+
+      return gtk_image_menu_item_get_always_show_image (GTK_IMAGE_MENU_ITEM (item));
+    }
+
+  return FALSE;
+}
+
diff --git a/libdbusmenu-gtk/parser.h b/libdbusmenu-gtk/parser.h
index 222d9f4..3cffb9c 100644
--- a/libdbusmenu-gtk/parser.h
+++ b/libdbusmenu-gtk/parser.h
@@ -2,5 +2,5 @@
 #include <libdbusmenu-glib/menuitem.h>
 #include <gtk/gtk.h>
 
-DbusmenuMenuitem * dbusmenu_gtk_parse_menu_structure (GtkMenuItem * mi);
+DbusmenuMenuitem * dbusmenu_gtk_parse_menu_structure (GtkWidget * widget);