[gnome-shell/wip/menus-rebase2] Another update for GLib API changes
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-shell/wip/menus-rebase2] Another update for GLib API changes
- Date: Thu, 15 Dec 2011 05:31:55 +0000 (UTC)
commit ab4a7c52371c8e8d87e76f0c68a56569d2ee6e6e
Author: Matthias Clasen <mclasen redhat com>
Date: Thu Dec 15 00:29:31 2011 -0500
Another update for GLib API changes
GDBusActionGroup api has changed again, adapt to that.
Also, use a GActionMuxer to add the 'app.' prefix to actions,
instead of manually stripping it out of the action names.
In the future, the muxer will also contain per-window actions
with a 'win.' prefix.
js/ui/popupMenu.js | 1 -
src/Makefile.am | 9 +-
src/gactionmuxer.c | 495 +++++++++++++++++++++++++++++++++++++++++++++++
src/gactionmuxer.h | 53 +++++
src/gactionobservable.c | 80 ++++++++
src/gactionobservable.h | 64 ++++++
src/gactionobserver.c | 161 +++++++++++++++
src/gactionobserver.h | 90 +++++++++
src/shell-app.c | 84 +++------
9 files changed, 974 insertions(+), 63 deletions(-)
---
diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 4e9d157..c6dc3df 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -1752,7 +1752,6 @@ const RemoteMenu = new Lang.Class({
}
let action_id = model.get_item_attribute_value(index, Gio.MENU_ATTRIBUTE_ACTION, null).deep_unpack();
- action_id = action_id.replace('app.', '');
if (!this.actionGroup.has_action(action_id)) {
// the action may not be there yet, wait for action-added
return [null, false, 'action-added'];
diff --git a/src/Makefile.am b/src/Makefile.am
index 375ff91..3000a09 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -157,7 +157,14 @@ libgnome_shell_la_SOURCES = \
shell-util.c \
shell-window-tracker.c \
shell-wm.c \
- shell-xfixes-cursor.c
+ shell-xfixes-cursor.c \
+ gactionmuxer.h \
+ gactionmuxer.c \
+ gactionobservable.h \
+ gactionobservable.c \
+ gactionobserver.h \
+ gactionobserver.c
+
libgnome_shell_la_gir_sources = \
$(filter-out %-private.h $(shell_recorder_non_gir_sources), $(shell_public_headers_h) $(libgnome_shell_la_SOURCES))
diff --git a/src/gactionmuxer.c b/src/gactionmuxer.c
new file mode 100644
index 0000000..bdc34b7
--- /dev/null
+++ b/src/gactionmuxer.c
@@ -0,0 +1,495 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ryan Lortie <desrt desrt ca>
+ */
+
+#include "config.h"
+
+#include "gactionmuxer.h"
+
+#include "gactionobservable.h"
+#include "gactionobserver.h"
+
+#include <string.h>
+
+/*
+ * SECTION:gactionmuxer
+ * @short_description: Aggregate and monitor several action groups
+ *
+ * #GActionMuxer is a #GActionGroup and #GActionObservable that is
+ * capable of containing other #GActionGroup instances.
+ *
+ * The typical use is aggregating all of the actions applicable to a
+ * particular context into a single action group, with namespacing.
+ *
+ * Consider the case of two action groups -- one containing actions
+ * applicable to an entire application (such as 'quit') and one
+ * containing actions applicable to a particular window in the
+ * application (such as 'fullscreen').
+ *
+ * In this case, each of these action groups could be added to a
+ * #GActionMuxer with the prefixes "app" and "win", respectively. This
+ * would expose the actions as "app.quit" and "win.fullscreen" on the
+ * #GActionGroup interface presented by the #GActionMuxer.
+ *
+ * Activations and state change requests on the #GActionMuxer are wired
+ * through to the underlying action group in the expected way.
+ *
+ * This class is typically only used at the site of "consumption" of
+ * actions (eg: when displaying a menu that contains many actions on
+ * different objects).
+ */
+
+static void g_action_muxer_group_iface_init (GActionGroupInterface *iface);
+static void g_action_muxer_observable_iface_init (GActionObservableInterface *iface);
+
+typedef GObjectClass GActionMuxerClass;
+
+struct _GActionMuxer
+{
+ GObject parent_instance;
+
+ GHashTable *actions;
+ GHashTable *groups;
+};
+
+G_DEFINE_TYPE_WITH_CODE (GActionMuxer, g_action_muxer, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, g_action_muxer_group_iface_init)
+ G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_OBSERVABLE, g_action_muxer_observable_iface_init))
+
+typedef struct
+{
+ GActionMuxer *muxer;
+ GSList *watchers;
+ gchar *fullname;
+} Action;
+
+typedef struct
+{
+ GActionMuxer *muxer;
+ GActionGroup *group;
+ gchar *prefix;
+ gulong handler_ids[4];
+} Group;
+
+static gchar **
+g_action_muxer_list_actions (GActionGroup *action_group)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (action_group);
+
+ return (gchar **) muxer->groups;
+}
+
+static Group *
+g_action_muxer_find_group (GActionMuxer *muxer,
+ const gchar **name)
+{
+ const gchar *dot;
+ gchar *prefix;
+ Group *group;
+
+ dot = strchr (*name, '.');
+
+ if (!dot)
+ return NULL;
+
+ prefix = g_strndup (*name, dot - *name);
+ group = g_hash_table_lookup (muxer->groups, prefix);
+ g_free (prefix);
+
+ *name = dot + 1;
+
+ return group;
+}
+
+static Action *
+g_action_muxer_lookup_action (GActionMuxer *muxer,
+ const gchar *prefix,
+ const gchar *action_name,
+ gchar **fullname)
+{
+ Action *action;
+
+ *fullname = g_strconcat (prefix, ".", action_name, NULL);
+ action = g_hash_table_lookup (muxer->actions, *fullname);
+
+ return action;
+}
+
+static void
+g_action_muxer_action_enabled_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ gboolean enabled,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+ Action *action;
+ GSList *node;
+
+ action = g_action_muxer_lookup_action (group->muxer, group->prefix, action_name, &fullname);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ g_action_observer_action_enabled_changed (node->data, G_ACTION_OBSERVABLE (group->muxer), fullname, enabled);
+ g_action_group_action_enabled_changed (G_ACTION_GROUP (group->muxer), fullname, enabled);
+ g_free (fullname);
+}
+
+static void
+g_action_muxer_action_state_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *state,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+ Action *action;
+ GSList *node;
+
+ action = g_action_muxer_lookup_action (group->muxer, group->prefix, action_name, &fullname);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ g_action_observer_action_state_changed (node->data, G_ACTION_OBSERVABLE (group->muxer), fullname, state);
+ g_action_group_action_state_changed (G_ACTION_GROUP (group->muxer), fullname, state);
+ g_free (fullname);
+}
+
+static void
+g_action_muxer_action_added (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ const GVariantType *parameter_type;
+ Group *group = user_data;
+ gboolean enabled;
+ GVariant *state;
+
+ if (g_action_group_query_action (group->group, action_name, &enabled, ¶meter_type, NULL, NULL, &state))
+ {
+ gchar *fullname;
+ Action *action;
+ GSList *node;
+
+ action = g_action_muxer_lookup_action (group->muxer, group->prefix, action_name, &fullname);
+
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ g_action_observer_action_added (node->data,
+ G_ACTION_OBSERVABLE (group->muxer),
+ fullname, parameter_type, enabled, state);
+
+ g_action_group_action_added (G_ACTION_GROUP (group->muxer), fullname);
+
+ if (state)
+ g_variant_unref (state);
+
+ g_free (fullname);
+ }
+}
+
+static void
+g_action_muxer_action_removed (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+ Action *action;
+ GSList *node;
+
+ action = g_action_muxer_lookup_action (group->muxer, group->prefix, action_name, &fullname);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ g_action_observer_action_removed (node->data, G_ACTION_OBSERVABLE (group->muxer), fullname);
+ g_action_group_action_removed (G_ACTION_GROUP (group->muxer), fullname);
+ g_free (fullname);
+}
+
+static gboolean
+g_action_muxer_query_action (GActionGroup *action_group,
+ const gchar *action_name,
+ gboolean *enabled,
+ const GVariantType **parameter_type,
+ const GVariantType **state_type,
+ GVariant **state_hint,
+ GVariant **state)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (action_group);
+ Group *group;
+
+ group = g_action_muxer_find_group (muxer, &action_name);
+
+ if (!group)
+ return FALSE;
+
+ return g_action_group_query_action (group->group, action_name, enabled,
+ parameter_type, state_type, state_hint, state);
+}
+
+static void
+g_action_muxer_activate_action (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *parameter)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (action_group);
+ Group *group;
+
+ group = g_action_muxer_find_group (muxer, &action_name);
+
+ if (group)
+ g_action_group_activate_action (group->group, action_name, parameter);
+}
+
+static void
+g_action_muxer_change_action_state (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *state)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (action_group);
+ Group *group;
+
+ group = g_action_muxer_find_group (muxer, &action_name);
+
+ if (group)
+ g_action_group_change_action_state (group->group, action_name, state);
+}
+
+static void
+g_action_muxer_unregister_internal (Action *action,
+ gpointer observer)
+{
+ GActionMuxer *muxer = action->muxer;
+ GSList **ptr;
+
+ for (ptr = &action->watchers; *ptr; ptr = &(*ptr)->next)
+ if ((*ptr)->data == observer)
+ {
+ *ptr = g_slist_remove (*ptr, observer);
+
+ if (action->watchers == NULL)
+ {
+ g_hash_table_remove (muxer->actions, action->fullname);
+ g_free (action->fullname);
+
+ g_slice_free (Action, action);
+
+ g_object_unref (muxer);
+ }
+
+ break;
+ }
+}
+
+static void
+g_action_muxer_weak_notify (gpointer data,
+ GObject *where_the_object_was)
+{
+ Action *action = data;
+
+ g_action_muxer_unregister_internal (action, where_the_object_was);
+}
+
+static void
+g_action_muxer_register_observer (GActionObservable *observable,
+ const gchar *name,
+ GActionObserver *observer)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (observable);
+ Action *action;
+
+ action = g_hash_table_lookup (muxer->actions, name);
+
+ if (action == NULL)
+ {
+ action = g_slice_new (Action);
+ action->muxer = g_object_ref (muxer);
+ action->fullname = g_strdup (name);
+ action->watchers = NULL;
+
+ g_hash_table_insert (muxer->actions, action->fullname, action);
+ }
+
+ action->watchers = g_slist_prepend (action->watchers, observer);
+ g_object_weak_ref (G_OBJECT (observer), g_action_muxer_weak_notify, action);
+}
+
+static void
+g_action_muxer_unregister_observer (GActionObservable *observable,
+ const gchar *name,
+ GActionObserver *observer)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (observable);
+ Action *action;
+
+ action = g_hash_table_lookup (muxer->actions, name);
+ g_object_weak_unref (G_OBJECT (observer), g_action_muxer_weak_notify, action);
+ g_action_muxer_unregister_internal (action, observer);
+}
+
+static void
+g_action_muxer_free_group (gpointer data)
+{
+ Group *group = data;
+
+ g_object_unref (group->group);
+ g_free (group->prefix);
+
+ g_slice_free (Group, group);
+}
+
+static void
+g_action_muxer_finalize (GObject *object)
+{
+ GActionMuxer *muxer = G_ACTION_MUXER (object);
+
+ g_assert_cmpint (g_hash_table_size (muxer->actions), ==, 0);
+ g_hash_table_unref (muxer->actions);
+ g_hash_table_unref (muxer->groups);
+
+ G_OBJECT_CLASS (g_action_muxer_parent_class)
+ ->finalize (object);
+}
+
+static void
+g_action_muxer_init (GActionMuxer *muxer)
+{
+ muxer->actions = g_hash_table_new (g_str_hash, g_str_equal);
+ muxer->groups = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_action_muxer_free_group);
+}
+
+static void
+g_action_muxer_observable_iface_init (GActionObservableInterface *iface)
+{
+ iface->register_observer = g_action_muxer_register_observer;
+ iface->unregister_observer = g_action_muxer_unregister_observer;
+}
+
+static void
+g_action_muxer_group_iface_init (GActionGroupInterface *iface)
+{
+ iface->list_actions = g_action_muxer_list_actions;
+ iface->query_action = g_action_muxer_query_action;
+ iface->activate_action = g_action_muxer_activate_action;
+ iface->change_action_state = g_action_muxer_change_action_state;
+}
+
+static void
+g_action_muxer_class_init (GObjectClass *class)
+{
+ class->finalize = g_action_muxer_finalize;
+}
+
+/*
+ * g_action_muxer_insert:
+ * @muxer: a #GActionMuxer
+ * @prefix: the prefix string for the action group
+ * @action_group: a #GActionGroup
+ *
+ * Adds the actions in @action_group to the list of actions provided by
+ * @muxer. @prefix is prefixed to each action name, such that for each
+ * action <varname>x</varname> in @action_group, there is an equivalent
+ * action @prefix<literal>.</literal><varname>x</varname> in @muxer.
+ *
+ * For example, if @prefix is "<literal>app</literal>" and @action_group
+ * contains an action called "<literal>quit</literal>", then @muxer will
+ * now contain an action called "<literal>app.quit</literal>".
+ *
+ * If any #GActionObservers are registered for actions in the group,
+ * "action_added" notifications will be emitted, as appropriate.
+ *
+ * @prefix must not contain a dot ('.').
+ */
+void
+g_action_muxer_insert (GActionMuxer *muxer,
+ const gchar *prefix,
+ GActionGroup *action_group)
+{
+ gchar **actions;
+ Group *group;
+ gint i;
+
+ /* TODO: diff instead of ripout and replace */
+ g_action_muxer_remove (muxer, prefix);
+
+ group = g_slice_new (Group);
+ group->muxer = muxer;
+ group->group = g_object_ref (action_group);
+ group->prefix = g_strdup (prefix);
+
+ g_hash_table_insert (muxer->groups, group->prefix, group);
+
+ actions = g_action_group_list_actions (group->group);
+ for (i = 0; actions[i]; i++)
+ g_action_muxer_action_added (group->group, actions[i], group);
+ g_strfreev (actions);
+
+ group->handler_ids[0] = g_signal_connect (group->group, "action-added",
+ G_CALLBACK (g_action_muxer_action_added), group);
+ group->handler_ids[1] = g_signal_connect (group->group, "action-removed",
+ G_CALLBACK (g_action_muxer_action_removed), group);
+ group->handler_ids[2] = g_signal_connect (group->group, "action-enabled-changed",
+ G_CALLBACK (g_action_muxer_action_enabled_changed), group);
+ group->handler_ids[3] = g_signal_connect (group->group, "action-state-changed",
+ G_CALLBACK (g_action_muxer_action_state_changed), group);
+}
+
+/*
+ * g_action_muxer_remove:
+ * @muxer: a #GActionMuxer
+ * @prefix: the prefix of the action group to remove
+ *
+ * Removes a #GActionGroup from the #GActionMuxer.
+ *
+ * If any #GActionObservers are registered for actions in the group,
+ * "action_removed" notifications will be emitted, as appropriate.
+ */
+void
+g_action_muxer_remove (GActionMuxer *muxer,
+ const gchar *prefix)
+{
+ Group *group;
+
+ group = g_hash_table_lookup (muxer->groups, prefix);
+
+ if (group != NULL)
+ {
+ gchar **actions;
+ gint i;
+
+ g_hash_table_steal (muxer->groups, prefix);
+
+ actions = g_action_group_list_actions (group->group);
+ for (i = 0; actions[i]; i++)
+ g_action_muxer_action_removed (group->group, actions[i], group);
+ g_strfreev (actions);
+
+ /* 'for loop' or 'four loop'? */
+ for (i = 0; i < 4; i++)
+ g_signal_handler_disconnect (group->group, group->handler_ids[i]);
+
+ g_action_muxer_free_group (group);
+ }
+}
+
+/*
+ * g_action_muxer_new:
+ *
+ * Creates a new #GActionMuxer.
+ */
+GActionMuxer *
+g_action_muxer_new (void)
+{
+ return g_object_new (G_TYPE_ACTION_MUXER, NULL);
+}
diff --git a/src/gactionmuxer.h b/src/gactionmuxer.h
new file mode 100644
index 0000000..adafd03
--- /dev/null
+++ b/src/gactionmuxer.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ryan Lortie <desrt desrt ca>
+ */
+
+#ifndef __G_ACTION_MUXER_H__
+#define __G_ACTION_MUXER_H__
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_ACTION_MUXER (g_action_muxer_get_type ())
+#define G_ACTION_MUXER(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ G_TYPE_ACTION_MUXER, GActionMuxer))
+#define G_IS_ACTION_MUXER(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ G_TYPE_ACTION_MUXER))
+
+typedef struct _GActionMuxer GActionMuxer;
+
+G_GNUC_INTERNAL
+GType g_action_muxer_get_type (void);
+G_GNUC_INTERNAL
+GActionMuxer * g_action_muxer_new (void);
+
+G_GNUC_INTERNAL
+void g_action_muxer_insert (GActionMuxer *muxer,
+ const gchar *prefix,
+ GActionGroup *group);
+
+G_GNUC_INTERNAL
+void g_action_muxer_remove (GActionMuxer *muxer,
+ const gchar *prefix);
+
+G_END_DECLS
+
+#endif /* __G_ACTION_MUXER_H__ */
diff --git a/src/gactionobservable.c b/src/gactionobservable.c
new file mode 100644
index 0000000..5d1c652
--- /dev/null
+++ b/src/gactionobservable.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#include "config.h"
+
+#include "gactionobservable.h"
+
+G_DEFINE_INTERFACE (GActionObservable, g_action_observable, G_TYPE_OBJECT)
+
+/*
+ * SECTION:gactionobserable
+ * @short_description: an interface implemented by objects that report
+ * changes to actions
+ */
+
+void
+g_action_observable_default_init (GActionObservableInterface *iface)
+{
+}
+
+/*
+ * g_action_observable_register_observer:
+ * @observable: a #GActionObservable
+ * @action_name: the name of the action
+ * @observer: the #GActionObserver to which the events will be reported
+ *
+ * Registers @observer as being interested in changes to @action_name on
+ * @observable.
+ */
+void
+g_action_observable_register_observer (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVABLE (observable));
+
+ G_ACTION_OBSERVABLE_GET_IFACE (observable)
+ ->register_observer (observable, action_name, observer);
+}
+
+/*
+ * g_action_observable_unregister_observer:
+ * @observable: a #GActionObservable
+ * @action_name: the name of the action
+ * @observer: the #GActionObserver to which the events will be reported
+ *
+ * Removes the registration of @observer as being interested in changes
+ * to @action_name on @observable.
+ *
+ * If the observer was registered multiple times, it must be
+ * unregistered an equal number of times.
+ */
+void
+g_action_observable_unregister_observer (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVABLE (observable));
+
+ G_ACTION_OBSERVABLE_GET_IFACE (observable)
+ ->unregister_observer (observable, action_name, observer);
+}
diff --git a/src/gactionobservable.h b/src/gactionobservable.h
new file mode 100644
index 0000000..1d5d1aa
--- /dev/null
+++ b/src/gactionobservable.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#ifndef __G_ACTION_OBSERVABLE_H__
+#define __G_ACTION_OBSERVABLE_H__
+
+#include "gactionobserver.h"
+
+G_BEGIN_DECLS
+
+#define G_TYPE_ACTION_OBSERVABLE (g_action_observable_get_type ())
+#define G_ACTION_OBSERVABLE(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ G_TYPE_ACTION_OBSERVABLE, GActionObservable))
+#define G_IS_ACTION_OBSERVABLE(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ G_TYPE_ACTION_OBSERVABLE))
+#define G_ACTION_OBSERVABLE_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), \
+ G_TYPE_ACTION_OBSERVABLE, GActionObservableInterface))
+
+typedef struct _GActionObservableInterface GActionObservableInterface;
+
+struct _GActionObservableInterface
+{
+ GTypeInterface g_iface;
+
+ void (* register_observer) (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer);
+ void (* unregister_observer) (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer);
+};
+
+G_GNUC_INTERNAL
+GType g_action_observable_get_type (void);
+G_GNUC_INTERNAL
+void g_action_observable_register_observer (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer);
+G_GNUC_INTERNAL
+void g_action_observable_unregister_observer (GActionObservable *observable,
+ const gchar *action_name,
+ GActionObserver *observer);
+
+G_END_DECLS
+
+#endif /* __G_ACTION_OBSERVABLE_H__ */
diff --git a/src/gactionobserver.c b/src/gactionobserver.c
new file mode 100644
index 0000000..0586f07
--- /dev/null
+++ b/src/gactionobserver.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#include "config.h"
+
+#include "gactionobserver.h"
+
+G_DEFINE_INTERFACE (GActionObserver, g_action_observer, G_TYPE_OBJECT)
+
+/**
+ * SECTION:gactionobserver
+ * @short_description: an interface implemented by objects that are
+ * interested in monitoring actions for changes
+ *
+ * GActionObserver is a simple interface allowing objects that wish to
+ * be notified of changes to actions to be notified of those changes.
+ *
+ * It is also possible to monitor changes to action groups using
+ * #GObject signals, but there are a number of reasons that this
+ * approach could become problematic:
+ *
+ * - there are four separate signals that must be manually connected
+ * and disconnected
+ *
+ * - when a large number of different observers wish to monitor a
+ * (usually disjoint) set of actions within the same action group,
+ * there is only one way to avoid having all notifications delivered
+ * to all observers: signal detail. In order to use signal detail,
+ * each action name must be quarked, which is not always practical.
+ *
+ * - even if quarking is acceptable, #GObject signal details are
+ * implemented by scanning a linked list, so there is no real
+ * decrease in complexity
+ */
+
+void
+g_action_observer_default_init (GActionObserverInterface *class)
+{
+}
+
+/*
+ * g_action_observer_action_added:
+ * @observer: a #GActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @enabled: %TRUE if the action is now enabled
+ * @parameter_type: the parameter type for action invocations, or %NULL
+ * if no parameter is required
+ * @state: the current state of the action, or %NULL if the action is
+ * stateless
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for is added.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+g_action_observer_action_added (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVER (observer));
+
+ G_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_added (observer, observable, action_name, parameter_type, enabled, state);
+}
+
+/*
+ * g_action_observer_action_enabled_changed:
+ * @observer: a #GActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @enabled: %TRUE if the action is now enabled
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for becomes enabled or disabled.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+g_action_observer_action_enabled_changed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVER (observer));
+
+ G_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_enabled_changed (observer, observable, action_name, enabled);
+}
+
+/*
+ * g_action_observer_action_state_changed:
+ * @observer: a #GActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @state: the new state of the action
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for changes its state.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+g_action_observer_action_state_changed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVER (observer));
+
+ G_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_state_changed (observer, observable, action_name, state);
+}
+
+/*
+ * g_action_observer_action_removed:
+ * @observer: a #GActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for is removed.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+g_action_observer_action_removed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name)
+{
+ g_return_if_fail (G_IS_ACTION_OBSERVER (observer));
+
+ G_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_removed (observer, observable, action_name);
+}
diff --git a/src/gactionobserver.h b/src/gactionobserver.h
new file mode 100644
index 0000000..eb15c3a
--- /dev/null
+++ b/src/gactionobserver.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright  2011 Canonical Limited
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * Authors: Ryan Lortie <desrt desrt ca>
+ */
+
+#ifndef __G_ACTION_OBSERVER_H__
+#define __G_ACTION_OBSERVER_H__
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_ACTION_OBSERVER (g_action_observer_get_type ())
+#define G_ACTION_OBSERVER(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ G_TYPE_ACTION_OBSERVER, GActionObserver))
+#define G_IS_ACTION_OBSERVER(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ G_TYPE_ACTION_OBSERVER))
+#define G_ACTION_OBSERVER_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), \
+ G_TYPE_ACTION_OBSERVER, GActionObserverInterface))
+
+typedef struct _GActionObserverInterface GActionObserverInterface;
+typedef struct _GActionObservable GActionObservable;
+typedef struct _GActionObserver GActionObserver;
+
+struct _GActionObserverInterface
+{
+ GTypeInterface g_iface;
+
+ void (* action_added) (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state);
+ void (* action_enabled_changed) (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled);
+ void (* action_state_changed) (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state);
+ void (* action_removed) (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name);
+};
+
+G_GNUC_INTERNAL
+GType g_action_observer_get_type (void);
+G_GNUC_INTERNAL
+void g_action_observer_action_added (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state);
+G_GNUC_INTERNAL
+void g_action_observer_action_enabled_changed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled);
+G_GNUC_INTERNAL
+void g_action_observer_action_state_changed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state);
+G_GNUC_INTERNAL
+void g_action_observer_action_removed (GActionObserver *observer,
+ GActionObservable *observable,
+ const gchar *action_name);
+
+G_END_DECLS
+
+#endif /* __G_ACTION_OBSERVER_H__ */
diff --git a/src/shell-app.c b/src/shell-app.c
index 42d1165..7d64e2a 100644
--- a/src/shell-app.c
+++ b/src/shell-app.c
@@ -15,6 +15,7 @@
#include "shell-app-system-private.h"
#include "shell-window-tracker-private.h"
#include "st.h"
+#include "gactionmuxer.h"
typedef enum {
MATCH_NONE,
@@ -42,8 +43,9 @@ typedef struct {
gint name_watcher_id;
gchar *dbus_name;
GDBusProxy *app_proxy;
- GDBusActionGroup *remote_actions;
+ GActionGroup *remote_actions;
GMenuModel *remote_menu;
+ GActionMuxer *muxer;
GCancellable *dbus_cancellable;
} ShellAppRunningState;
@@ -129,7 +131,7 @@ shell_app_get_property (GObject *gobject,
break;
case PROP_ACTION_GROUP:
if (app->running_state)
- g_value_set_object (value, app->running_state->remote_actions);
+ g_value_set_object (value, app->running_state->muxer);
break;
case PROP_MENU:
if (app->running_state)
@@ -1023,29 +1025,28 @@ _shell_app_remove_window (ShellApp *app,
}
static void
-on_action_group_acquired (GObject *object,
- GAsyncResult *result,
- gpointer user_data)
+on_dbus_proxy_gotten (GObject *initable,
+ GAsyncResult *result,
+ gpointer user_data)
{
ShellApp *self = SHELL_APP (user_data);
ShellAppRunningState *state = self->running_state;
GError *error = NULL;
GVariant *menu_property;
- state->remote_actions = g_dbus_action_group_new_finish (result,
- &error);
+ state->app_proxy = g_dbus_proxy_new_finish (result,
+ &error);
if (error)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
!g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD))
{
- g_warning ("Unexpected error while reading application actions: %s", error->message);
+ g_warning ("Unexpected error while creating application proxy: %s", error->message);
}
g_clear_error (&error);
g_clear_object (&state->dbus_cancellable);
- g_clear_object (&state->app_proxy);
if (state->name_watcher_id)
{
@@ -1060,9 +1061,17 @@ on_action_group_acquired (GObject *object,
return;
}
- g_object_notify (G_OBJECT (self), "action-group");
+ /* on to the second step, the primary action group */
+
+ state->remote_actions = (GActionGroup*)g_dbus_action_group_get (
+ g_dbus_proxy_get_connection (state->app_proxy),
+ g_dbus_proxy_get_name (state->app_proxy),
+ g_dbus_proxy_get_object_path (state->app_proxy));
+ state->muxer = g_action_muxer_new ();
+ g_action_muxer_insert (state->muxer, "app", state->remote_actions);
+ g_strfreev (g_action_group_list_actions (state->remote_actions));
- /* third step: the application menu */
+ g_object_notify (G_OBJECT (self), "action-group");
menu_property = g_dbus_proxy_get_cached_property (state->app_proxy, "AppMenu");
@@ -1078,55 +1087,6 @@ on_action_group_acquired (GObject *object,
g_object_notify (G_OBJECT (self), "menu");
}
-
- g_object_unref (self);
-}
-
-static void
-on_dbus_proxy_gotten (GObject *initable,
- GAsyncResult *result,
- gpointer user_data)
-{
- ShellApp *self = SHELL_APP (user_data);
- ShellAppRunningState *state = self->running_state;
- GError *error = NULL;
-
- state->app_proxy = g_dbus_proxy_new_finish (result,
- &error);
-
- if (error)
- {
- if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
- !g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD))
- {
- g_warning ("Unexpected error while creating application proxy: %s", error->message);
- }
-
- g_clear_error (&error);
- g_clear_object (&state->dbus_cancellable);
-
- if (state->name_watcher_id)
- {
- g_bus_unwatch_name (state->name_watcher_id);
- state->name_watcher_id = 0;
- }
-
- g_free (state->dbus_name);
- state->dbus_name = NULL;
-
- g_object_unref (self);
- return;
- }
-
- /* on to the second step, the primary action group */
-
- g_dbus_action_group_new (g_dbus_proxy_get_connection (state->app_proxy),
- g_dbus_proxy_get_name (state->app_proxy),
- g_dbus_proxy_get_object_path (state->app_proxy),
- G_DBUS_ACTION_GROUP_FLAGS_NONE,
- state->dbus_cancellable,
- on_action_group_acquired,
- self);
}
static void
@@ -1183,6 +1143,7 @@ on_dbus_name_disappeared (GDBusConnection *bus,
g_clear_object (&state->app_proxy);
g_clear_object (&state->remote_actions);
g_clear_object (&state->remote_menu);
+ g_clear_object (&state->muxer);
g_free (state->dbus_name);
state->dbus_name = NULL;
@@ -1428,6 +1389,7 @@ unref_running_state (ShellAppRunningState *state)
g_clear_object (&state->app_proxy);
g_clear_object (&state->remote_actions);
g_clear_object (&state->remote_menu);
+ g_clear_object (&state->muxer);
g_free (state->dbus_name);
if (state->name_watcher_id)
@@ -1701,7 +1663,7 @@ shell_app_class_init(ShellAppClass *klass)
g_param_spec_object ("action-group",
"Application Action Group",
"The action group exported by the remote application",
- G_TYPE_DBUS_ACTION_GROUP,
+ G_TYPE_ACTION_GROUP,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* ShellApp:menu:
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