~ubuntu-branches/ubuntu/wily/epiphany-browser/wily

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*

 *  Copyright © 2004 Christian Persch

 *  Copyright © 2005 Philip Langdale

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2, or (at your option)

 *  any later version.

 *

 *  This program 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 */

#include "config.h"

#include "ephy-link-action.h"

#include "ephy-debug.h"

#include "ephy-gui.h"

#include "ephy-link.h"

#include "ephy-window-action.h"

#include <gtk/gtk.h>

G_DEFINE_TYPE_WITH_CODE (EphyLinkAction, ephy_link_action, EPHY_TYPE_WINDOW_ACTION,

			 G_IMPLEMENT_INTERFACE (EPHY_TYPE_LINK,

						NULL))

#define EPHY_LINK_ACTION_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_LINK_ACTION, EphyLinkActionPrivate))

struct _EphyLinkActionPrivate

{

	guint button;

};

static gboolean

proxy_button_press_event_cb (GtkButton *button,

			     GdkEventButton *event,

			     EphyLinkAction *action)

{

	action->priv->button = event->button;

	return FALSE;

}

static GtkWidget *

get_event_widget (GtkWidget *proxy)

{

	GtkWidget *widget;

	/*

	 * Finding the interesting widget requires internal knowledge of

	 * the widgets in question. This can't be helped, but by keeping

	 * the sneaky code in one place, it can easily be updated.

	 */

	if (GTK_IS_MENU_ITEM (proxy))

	{

		/* Menu items already forward middle clicks */

		widget = NULL;

	}

	else if (GTK_IS_TOOL_BUTTON (proxy))

	{

		/* The tool button's button is the direct child */

		widget = gtk_bin_get_child (GTK_BIN (proxy));

	}

	else if (GTK_IS_BUTTON (proxy))

	{

		widget = proxy;

	}

	else

	{

		/* Don't touch anything we don't know about */

		widget = NULL;

	}

	return widget;

}

static void

ephy_link_action_connect_proxy (GtkAction *action, GtkWidget *proxy)

{

	GtkWidget *widget;

	LOG ("Connect link action proxy");

	widget = get_event_widget (proxy);

	if (widget)

	{

		g_signal_connect (widget, "button-press-event",

				  G_CALLBACK (proxy_button_press_event_cb),

				  action);

	}

	GTK_ACTION_CLASS (ephy_link_action_parent_class)->connect_proxy (action, proxy);

}

static void

ephy_link_action_disconnect_proxy (GtkAction *action, GtkWidget *proxy)

{

	GtkWidget *widget;

	LOG ("Disconnect link action proxy");

	widget = get_event_widget (proxy);

	if (widget)

	{

		g_signal_handlers_disconnect_by_func (widget,

						      G_CALLBACK (proxy_button_press_event_cb),

						      action);

	}

	GTK_ACTION_CLASS (ephy_link_action_parent_class)->disconnect_proxy (action, proxy);

}

static void

ephy_link_action_init (EphyLinkAction *action)

{

	action->priv = EPHY_LINK_ACTION_GET_PRIVATE (action);

}

static void

ephy_link_action_class_init (EphyLinkActionClass *class)

{

	GtkActionClass *action_class = GTK_ACTION_CLASS (class);

	action_class->connect_proxy = ephy_link_action_connect_proxy;

	action_class->disconnect_proxy = ephy_link_action_disconnect_proxy;

	g_type_class_add_private (G_OBJECT_CLASS (class), sizeof (EphyLinkActionPrivate));

}

/**

 * ephy_link_action_get_button:

 * @action: an #EphyLinkAction

 * 

 * This method stores the mouse button number that last activated, or

 * is activating, the @action. This is useful because #GtkButton's

 * cannot be clicked with a middle click by default, so inside

 * Epiphany we fake this by forwarding a left click (button 1) event

 * instead of a middle click (button 2) to the button. That makes the

 * EphyGUI methods like ephy_gui_is_middle_click not work here, so we

 * need to ask the @action directly about the button that activated

 * it.

 * 

 * Returns: the button number that last activated (or is activating) the @action

 **/

guint

ephy_link_action_get_button (EphyLinkAction *action)

{

	g_return_val_if_fail (EPHY_IS_LINK_ACTION (action), 0);

	return action->priv->button;

}

static void

ephy_link_action_group_class_init (EphyLinkActionGroupClass *klass)

{

	/* Empty, needed for G_DEFINE_TYPE macro */

}

static void

ephy_link_action_group_init (EphyLinkActionGroup *action_group)

{

	/* Empty, needed for G_DEFINE_TYPE macro */

}

G_DEFINE_TYPE_WITH_CODE (EphyLinkActionGroup, ephy_link_action_group, GTK_TYPE_ACTION_GROUP,

			 G_IMPLEMENT_INTERFACE (EPHY_TYPE_LINK,

						NULL))

EphyLinkActionGroup *

ephy_link_action_group_new (const char * name)

{

	return g_object_new (EPHY_TYPE_LINK_ACTION_GROUP,

			     "name", name,

			     NULL);

}