Check for enchant, and output an overview of the configured options on

2006-06-09  Christian Persch  <chpe@cvs.gnome.org>

	* configure.ac:

	Check for enchant, and output an overview of the configured
	options on successful configure.

	* data/default-prefs-common.js:
	* embed/mozilla/GeckoSpellCheckEngine.cpp:
	* embed/mozilla/GeckoSpellCheckEngine.h:
	* embed/mozilla/Makefile.am:
	* embed/mozilla/MozRegisterComponents.cpp:
	* lib/Makefile.am:
	* lib/ephy-spell-check.c:
	* lib/ephy-spell-check.h:

	Spell check support using the gecko 'spellchecker' extension.
	No corrections context menu or language switching yet.

3 files changed, 363 insertions, 0 deletions

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 697213940..439c356bb 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -82,6 +82,18 @@ libephymisc_la_CFLAGS = \
 
 libephymisc_la_LIBADD =
 
+if ENABLE_SPELLCHECKER
+libephymisc_la_SOURCES += \
+	ephy-spell-check.c	\
+	ephy-spell-check.h
+
+libephymisc_la_CFLAGS += \
+	$(SPELLCHECKER_CFLAGS)
+
+libephymisc_la_LIBADD += \
+	$(SPELLCHECKER_LIBS)
+endif
+
 BUILT_SOURCES = \
 	ephy-lib-type-builtins.c	\
 	ephy-lib-type-builtins.h	\
diff --git a/lib/ephy-spell-check.c b/lib/ephy-spell-check.c
new file mode 100755
index 000000000..aa09916fa
--- /dev/null
+++ b/lib/ephy-spell-check.c
@@ -0,0 +1,275 @@
+/*
+ *  Copyright (C) 2006 Christian Persch
+ *
+ *  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 2.1, 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *  $Id$
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <glib/gi18n.h>
+
+#include <enchant.h>
+
+#include "ephy-debug.h"
+
+#include "ephy-spell-check.h"
+
+#define EPHY_SPELL_CHECK_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SPELL_CHECK, EphySpellCheckPrivate))
+
+struct _EphySpellCheckPrivate
+{
+	EnchantBroker *broker;
+	EnchantDict *dict;
+};
+
+enum
+{
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL];
+static GObjectClass *parent_class;
+
+/* Helper functions */
+
+/* Class implementation */
+
+static void
+ephy_spell_check_init (EphySpellCheck *speller)
+{
+	EphySpellCheckPrivate *priv;
+
+	priv = speller->priv = EPHY_SPELL_CHECK_GET_PRIVATE (speller);
+
+	priv->broker = enchant_broker_init ();
+
+	/* FIXME */
+	priv->dict = enchant_broker_request_dict (priv->broker, "en");
+	if(priv->dict == NULL)
+		g_warning(enchant_broker_get_error (priv->broker));
+}
+
+static void
+ephy_spell_check_finalize (GObject *object)
+{
+	EphySpellCheck *speller = EPHY_SPELL_CHECK (object);
+	EphySpellCheckPrivate *priv = speller->priv;
+
+
+	LOG ("EphySpellCheck finalised");
+
+	if (priv->dict != NULL)
+	{
+		enchant_broker_free_dict (priv->broker, priv->dict);
+		priv->dict = NULL;
+	}
+
+	enchant_broker_free (priv->broker);
+
+	parent_class->finalize (object);
+}
+
+static void
+ephy_spell_check_class_init (EphySpellCheckClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	parent_class = g_type_class_peek_parent (klass);
+
+	object_class->finalize = ephy_spell_check_finalize;
+
+#if 0
+	signals[CANCEL] =
+		g_signal_new ("cancel",
+			      G_OBJECT_CLASS_TYPE (klass),
+			      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+			      G_STRUCT_OFFSET (EphySpellCheckClass, cancel),
+			      g_signal_accumulator_true_handled, NULL,
+			      ephy_marshal_BOOLEAN__VOID,
+			      G_TYPE_BOOLEAN,
+			      0);
+#endif
+
+	g_type_class_add_private (object_class, sizeof (EphySpellCheckPrivate));
+}
+
+GType
+ephy_spell_check_get_type (void)
+{
+	static GType type = 0;
+
+	if (G_UNLIKELY (type == 0))
+	{
+		static const GTypeInfo our_info =
+		{
+			sizeof (EphySpellCheckClass),
+			NULL,
+			NULL,
+			(GClassInitFunc) ephy_spell_check_class_init,
+			NULL,
+			NULL,
+			sizeof (EphySpellCheck),
+			0,
+			(GInstanceInitFunc) ephy_spell_check_init
+		};
+
+		type = g_type_register_static (G_TYPE_OBJECT,
+					       "EphySpellCheck",
+					       &our_info, 0);
+	}
+
+	return type;
+}
+
+/* Public API */
+
+/**
+ * ephy_spell_check_get_default:
+ * 
+ * Returns: a reference to the default #EphySpellCheck object
+ */
+EphySpellCheck *
+ephy_spell_check_get_default (void)
+{
+	static EphySpellCheck *instance = NULL;
+
+	if (instance == NULL)
+	{
+		EphySpellCheck **instanceptr = &instance;
+
+		instance = g_object_new (EPHY_TYPE_SPELL_CHECK, NULL);
+		g_object_add_weak_pointer (G_OBJECT (instance),
+					   (gpointer) instanceptr);
+
+		return instance;
+	}
+	
+	return g_object_ref (instance);
+}
+
+int
+ephy_spell_check_check_word (EphySpellCheck *speller,
+			     const char *word,
+			     gssize len,
+			     gboolean *correct)
+{
+	EphySpellCheckPrivate *priv = speller->priv;
+	int result;
+
+	g_return_val_if_fail (word != NULL, -1);
+
+	g_print ("ephy_spell_check_check_word: '%s'\n", word);
+
+	if (priv->dict == NULL)
+		return FALSE;
+
+	if (len < 0)
+		len = strlen (word);
+
+	result = enchant_dict_check (priv->dict, word, len);
+	if (result < 0)
+		return FALSE;
+
+	*correct = result == 0;
+
+	return TRUE;
+}
+
+char **
+ephy_spell_check_get_suggestions (EphySpellCheck *speller,
+				  const char *word,
+				  gssize len,
+				  gsize *_count)
+{
+	EphySpellCheckPrivate *priv = speller->priv;
+	char **suggestions;
+	size_t count;
+
+	g_return_val_if_fail (word != NULL, NULL);
+
+	if (priv->dict == NULL)
+		return FALSE;
+
+	if (len < 0)
+		len = strlen (word);
+
+	suggestions =  enchant_dict_suggest (priv->dict, word, len, &count);
+	
+	*_count = count;
+	return suggestions;
+}
+
+void
+ephy_spell_check_free_suggestions (EphySpellCheck *speller,
+				   char **suggestions)
+{
+	EphySpellCheckPrivate *priv = speller->priv;
+
+	if (suggestions != NULL)
+	{
+		g_return_if_fail (priv->dict != NULL);
+
+		/* FIXME!! What if inbetween there has been a change of dict!? */
+		enchant_dict_free_suggestions (priv->dict, suggestions);
+	}
+}
+
+gboolean
+ephy_spell_check_set_language (EphySpellCheck *speller,
+			       const char *lang)
+{
+	EphySpellCheckPrivate *priv = speller->priv;
+	char *code;
+
+	if (priv->dict != NULL)
+	{
+		enchant_broker_free_dict (priv->broker, priv->dict);
+		priv->dict = NULL;
+	}
+
+	/* Enchant expects ab_CD codes, not ab-CD */
+	code = g_strdup (lang);
+	g_strdelimit (code, "-", '_');
+	priv->dict = enchant_broker_request_dict (priv->broker, code);
+	g_free (code);
+
+	return priv->dict != NULL;
+}
+
+static void
+describe_cb (const char * const lang_tag,
+             const char * const provider_name,
+	     const char * const provider_desc,
+	     const char * const provider_file,
+	     char **_language)
+{
+	*_language = g_strdup (lang_tag);
+}
+
+char *
+ephy_spell_check_get_language (EphySpellCheck *speller)
+{
+	EphySpellCheckPrivate *priv = speller->priv;
+	char *code = NULL;
+
+	if (priv->dict == NULL) return NULL;
+
+	enchant_dict_describe (priv->dict, (EnchantDictDescribeFn) describe_cb, &code);
+	return code;
+}
\ No newline at end of file
diff --git a/lib/ephy-spell-check.h b/lib/ephy-spell-check.h
new file mode 100644
index 000000000..34b80df9a
--- /dev/null
+++ b/lib/ephy-spell-check.h
@@ -0,0 +1,76 @@
+/*
+ *  Copyright (C) 2006 Christian Persch
+ *
+ *  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 2.1, 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *  $Id$
+ */
+
+#ifndef EPHY_SPELL_CHECK_H
+#define EPHY_SPELL_CHECK_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define EPHY_TYPE_SPELL_CHECK		(ephy_spell_check_get_type ())
+#define EPHY_SPELL_CHECK(o)		(G_TYPE_CHECK_INSTANCE_CAST ((o), EPHY_TYPE_SPELL_CHECK, EphySpellCheck))
+#define EPHY_SPELL_CHECK_CLASS(k)	(G_TYPE_CHECK_CLASS_CAST ((k), EPHY_TYPE_SPELL_CHECK, EphySpellCheckClass))
+#define EPHY_IS_SPELL_CHECK(o)		(G_TYPE_CHECK_INSTANCE_TYPE ((o), EPHY_TYPE_SPELL_CHECK))
+#define EPHY_IS_SPELL_CHECK_CLASS(k)	(G_TYPE_CHECK_CLASS_TYPE ((k), EPHY_TYPE_SPELL_CHECK))
+#define EPHY_SPELL_CHECK_GET_CLASS(o)	(G_TYPE_INSTANCE_GET_CLASS ((o), EPHY_TYPE_SPELL_CHECK, EphySpellCheckClass))
+
+typedef struct _EphySpellCheck		EphySpellCheck;
+typedef struct _EphySpellCheckPrivate	EphySpellCheckPrivate;
+typedef struct _EphySpellCheckClass	EphySpellCheckClass;
+
+struct _EphySpellCheck
+{
+	GObject parent_instance;
+
+	/*< private >*/
+	EphySpellCheckPrivate *priv;
+};
+
+struct _EphySpellCheckClass
+{
+	GObjectClass parent_class;
+};
+
+GType		ephy_spell_check_get_type	(void);
+
+EphySpellCheck *ephy_spell_check_get_default	(void);
+
+gboolean	ephy_spell_check_check_word	(EphySpellCheck *speller,
+						 const char *word,
+						 gssize len,
+						 gboolean *correct);
+
+char	      **ephy_spell_check_get_suggestions	(EphySpellCheck *speller,
+							 const char *word,
+							 gssize len,
+							 gsize *count);
+
+void		ephy_spell_check_free_suggestions	(EphySpellCheck *speller,
+							 char **suggestions);
+
+gboolean	ephy_spell_check_set_language	(EphySpellCheck *speller,
+						 const char *lang);
+
+char	       *ephy_spell_check_get_language	(EphySpellCheck *speller);
+
+G_END_DECLS
+
+#endif