| // Copyright (c) 2010 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 "app/gtk_signal_registrar.h" |
| |
| #include <glib-object.h> |
| |
| #include "base/logging.h" |
| |
| GtkSignalRegistrar::GtkSignalRegistrar() { |
| } |
| |
| GtkSignalRegistrar::~GtkSignalRegistrar() { |
| for (HandlerMap::iterator list_iter = handler_lists_.begin(); |
| list_iter != handler_lists_.end(); ++list_iter) { |
| GObject* object = list_iter->first; |
| g_object_weak_unref(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(list_iter->first, *ids_iter); |
| } |
| } |
| } |
| |
| glong GtkSignalRegistrar::Connect(gpointer instance, |
| const gchar* detailed_signal, |
| GCallback signal_handler, |
| gpointer data) { |
| return ConnectInternal(instance, detailed_signal, signal_handler, data, |
| false); |
| } |
| |
| glong GtkSignalRegistrar::ConnectAfter(gpointer instance, |
| const gchar* detailed_signal, |
| GCallback signal_handler, |
| gpointer data) { |
| return ConnectInternal(instance, detailed_signal, signal_handler, data, true); |
| } |
| |
| glong GtkSignalRegistrar::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()) { |
| g_object_weak_ref(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 GtkSignalRegistrar::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); |
| } |