| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/ui/libgtk2ui/gtk2_signal_registrar.h" |
| |
| #include <glib-object.h> |
| |
| #include "base/logging.h" |
| #include "chrome/browser/ui/libgtk2ui/g_object_destructor_filo.h" |
| |
| namespace libgtk2ui { |
| |
| Gtk2SignalRegistrar::Gtk2SignalRegistrar() { |
| } |
| |
| Gtk2SignalRegistrar::~Gtk2SignalRegistrar() { |
| for (HandlerMap::iterator list_iter = handler_lists_.begin(); |
| list_iter != handler_lists_.end(); ++list_iter) { |
| GObject* object = list_iter->first; |
| GObjectDestructorFILO::GetInstance()->Disconnect( |
| object, WeakNotifyThunk, this); |
| |
| HandlerList& handlers = list_iter->second; |
| for (HandlerList::iterator ids_iter = handlers.begin(); |
| ids_iter != handlers.end(); ++ids_iter) { |
| g_signal_handler_disconnect(object, *ids_iter); |
| } |
| } |
| } |
| |
| glong Gtk2SignalRegistrar::Connect(gpointer instance, |
| const gchar* detailed_signal, |
| GCallback signal_handler, |
| gpointer data) { |
| return ConnectInternal(instance, detailed_signal, signal_handler, data, |
| false); |
| } |
| |
| glong Gtk2SignalRegistrar::ConnectAfter(gpointer instance, |
| const gchar* detailed_signal, |
| GCallback signal_handler, |
| gpointer data) { |
| return ConnectInternal(instance, detailed_signal, signal_handler, data, true); |
| } |
| |
| glong Gtk2SignalRegistrar::ConnectInternal(gpointer instance, |
| const gchar* detailed_signal, |
| GCallback signal_handler, |
| gpointer data, |
| bool after) { |
| GObject* object = G_OBJECT(instance); |
| |
| HandlerMap::iterator iter = handler_lists_.find(object); |
| if (iter == handler_lists_.end()) { |
| GObjectDestructorFILO::GetInstance()->Connect( |
| object, WeakNotifyThunk, this); |
| handler_lists_[object] = HandlerList(); |
| iter = handler_lists_.find(object); |
| } |
| |
| glong handler_id = after ? |
| g_signal_connect_after(instance, detailed_signal, signal_handler, data) : |
| g_signal_connect(instance, detailed_signal, signal_handler, data); |
| iter->second.push_back(handler_id); |
| |
| return handler_id; |
| } |
| |
| void Gtk2SignalRegistrar::WeakNotify(GObject* where_the_object_was) { |
| HandlerMap::iterator iter = handler_lists_.find(where_the_object_was); |
| if (iter == handler_lists_.end()) { |
| NOTREACHED(); |
| return; |
| } |
| // The signal handlers will be disconnected automatically. Just erase the |
| // handler id list. |
| handler_lists_.erase(iter); |
| } |
| |
| void Gtk2SignalRegistrar::DisconnectAll(gpointer instance) { |
| GObject* object = G_OBJECT(instance); |
| HandlerMap::iterator iter = handler_lists_.find(object); |
| if (iter == handler_lists_.end()) |
| return; |
| |
| GObjectDestructorFILO::GetInstance()->Disconnect( |
| object, WeakNotifyThunk, this); |
| HandlerList& handlers = iter->second; |
| for (HandlerList::iterator ids_iter = handlers.begin(); |
| ids_iter != handlers.end(); ++ids_iter) { |
| g_signal_handler_disconnect(object, *ids_iter); |
| } |
| |
| handler_lists_.erase(iter); |
| } |
| |
| } // namespace libgtk2ui |