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/*
* Copyright © 2002 Olivier Martin <omartin@ifrance.com>
* Copyright © 2002 Jorn Baayen <jorn@nl.linux.org>
*
* 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 of the License, 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.
*
*/
#if !defined (__EPHY_EPIPHANY_H_INSIDE__) && !defined (EPIPHANY_COMPILATION)
#error "Only <epiphany/epiphany.h> can be included directly."
#endif
#ifndef EPHY_NODE_FILTER_H
#define EPHY_NODE_FILTER_H
#include <glib-object.h>
#include "ephy-node.h"
G_BEGIN_DECLS
#define EPHY_TYPE_NODE_FILTER (ephy_node_filter_get_type ())
#define EPHY_NODE_FILTER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), EPHY_TYPE_NODE_FILTER, EphyNodeFilter))
#define EPHY_NODE_FILTER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), EPHY_TYPE_NODE_FILTER, EphyNodeFilterClass))
#define EPHY_IS_NODE_FILTER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), EPHY_TYPE_NODE_FILTER))
#define EPHY_IS_NODE_FILTER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), EPHY_TYPE_NODE_FILTER))
#define EPHY_NODE_FILTER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), EPHY_TYPE_NODE_FILTER, EphyNodeFilterClass))
typedef struct _EphyNodeFilterPrivate EphyNodeFilterPrivate;
typedef struct
{
GObject parent;
/*< private >*/
EphyNodeFilterPrivate *priv;
} EphyNodeFilter;
typedef struct
{
GObjectClass parent;
void (*changed) (EphyNodeFilter *filter);
} EphyNodeFilterClass;
typedef enum
{
EPHY_NODE_FILTER_EXPRESSION_ALWAYS_TRUE, /* args: none */
EPHY_NODE_FILTER_EXPRESSION_NODE_EQUALS, /* args: EphyNode *a, EphyNode *b */
EPHY_NODE_FILTER_EXPRESSION_EQUALS, /* args: EphyNode *node */
EPHY_NODE_FILTER_EXPRESSION_HAS_PARENT, /* args: EphyNode *parent */
EPHY_NODE_FILTER_EXPRESSION_HAS_CHILD, /* args: EphyNode *child */
EPHY_NODE_FILTER_EXPRESSION_NODE_PROP_EQUALS, /* args: int prop_id, EphyNode *node */
EPHY_NODE_FILTER_EXPRESSION_CHILD_PROP_EQUALS, /* args: int prop_id, EphyNode *node */
EPHY_NODE_FILTER_EXPRESSION_STRING_PROP_CONTAINS, /* args: int prop_id, const char *string */
EPHY_NODE_FILTER_EXPRESSION_STRING_PROP_EQUALS, /* args: int prop_id, const char *string */
EPHY_NODE_FILTER_EXPRESSION_KEY_PROP_CONTAINS, /* args: int prop_id, const char *string */
EPHY_NODE_FILTER_EXPRESSION_KEY_PROP_EQUALS, /* args: int prop_id, const char *string */
EPHY_NODE_FILTER_EXPRESSION_INT_PROP_EQUALS, /* args: int prop_id, int int */
EPHY_NODE_FILTER_EXPRESSION_INT_PROP_BIGGER_THAN, /* args: int prop_id, int int */
EPHY_NODE_FILTER_EXPRESSION_INT_PROP_LESS_THAN /* args: int prop_id, int int */
} EphyNodeFilterExpressionType;
typedef struct _EphyNodeFilterExpression EphyNodeFilterExpression;
/* The filter starts iterating over all expressions at level 0,
* if one of them is TRUE it continues to level 1, etc.
* If it still has TRUE when there are no more expressions at the
* next level, the result is TRUE. Otherwise, it's FALSE.
*/
GType ephy_node_filter_get_type (void);
EphyNodeFilter *ephy_node_filter_new (void);
void ephy_node_filter_add_expression (EphyNodeFilter *filter,
EphyNodeFilterExpression *expression,
int level);
void ephy_node_filter_empty (EphyNodeFilter *filter);
void ephy_node_filter_done_changing (EphyNodeFilter *filter);
gboolean ephy_node_filter_evaluate (EphyNodeFilter *filter,
EphyNode *node);
EphyNodeFilterExpression *ephy_node_filter_expression_new (EphyNodeFilterExpressionType,
...);
/* no need to free unless you didn't add the expression to a filter */
void ephy_node_filter_expression_free (EphyNodeFilterExpression *expression);
G_END_DECLS
#endif /* EPHY_NODE_FILTER_H */
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