Adding upstream version 3.38.6.upstream/3.38.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 276 insertions, 0 deletions

diff --git a/src/st/croco/cr-doc-handler.c b/src/st/croco/cr-doc-handler.c
new file mode 100644
index 0000000..b0ef13c
--- /dev/null
+++ b/src/st/croco/cr-doc-handler.c
@@ -0,0 +1,276 @@
+/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
+
+/*
+ * This file is part of The Croco Library
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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 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
+ * 
+ * See COPRYRIGHTS file for copyright information.
+ */
+
+#include <string.h>
+#include "cr-doc-handler.h"
+#include "cr-parser.h"
+
+/**
+ *@CRDocHandler:
+ *
+ *The definition of the CRDocHandler class.
+ *Contains methods to instantiate, destroy,
+ *and initialize instances of #CRDocHandler
+ *to custom values.
+ */
+
+#define PRIVATE(obj) (obj)->priv
+
+struct _CRDocHandlerPriv {
+	/**
+	 *This pointer is to hold an application parsing context.
+	 *For example, it used by the Object Model parser to 
+	 *store it parsing context. #CRParser does not touch it, but
+	 *#CROMParser does. #CROMParser allocates this pointer at
+	 *the beginning of the css document, and frees it at the end
+	 *of the document.
+	 */
+        gpointer context;
+
+	/**
+	 *The place where #CROMParser puts the result of its parsing, if
+	 *any.
+	 */
+        gpointer result;
+	/**
+	 *a pointer to the parser used to parse
+	 *the current document.
+	 */
+	CRParser *parser ;
+};
+
+/**
+ * cr_doc_handler_new:
+ *Constructor of #CRDocHandler.
+ *
+ *Returns the newly built instance of
+ *#CRDocHandler
+ *
+ */
+CRDocHandler *
+cr_doc_handler_new (void)
+{
+        CRDocHandler *result = NULL;
+
+        result = g_try_malloc (sizeof (CRDocHandler));
+
+        g_return_val_if_fail (result, NULL);
+
+        memset (result, 0, sizeof (CRDocHandler));
+        result->ref_count++;
+
+        result->priv = g_try_malloc (sizeof (CRDocHandlerPriv));
+        if (!result->priv) {
+                cr_utils_trace_info ("Out of memory exception");
+                g_free (result);
+                return NULL;
+        }
+
+        cr_doc_handler_set_default_sac_handler (result);
+
+        return result;
+}
+
+/**
+ * cr_doc_handler_get_ctxt:
+ *@a_this: the current instance of #CRDocHandler.
+ *@a_ctxt: out parameter. The new parsing context.
+ *
+ *Gets the private parsing context associated to the document handler
+ *The private parsing context is used by libcroco only.
+ *
+ *Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_doc_handler_get_ctxt (CRDocHandler const * a_this, gpointer * a_ctxt)
+{
+        g_return_val_if_fail (a_this && a_this->priv, CR_BAD_PARAM_ERROR);
+
+        *a_ctxt = a_this->priv->context;
+
+        return CR_OK;
+}
+
+/**
+ * cr_doc_handler_set_ctxt:
+ *@a_this: the current instance of #CRDocHandler
+ *@a_ctxt: a pointer to the parsing context.
+ *
+ *Sets the private parsing context.
+ *This is used by libcroco only.
+ *Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_doc_handler_set_ctxt (CRDocHandler * a_this, gpointer a_ctxt)
+{
+        g_return_val_if_fail (a_this && a_this->priv, CR_BAD_PARAM_ERROR);
+        a_this->priv->context = a_ctxt;
+        return CR_OK;
+}
+
+/**
+ * cr_doc_handler_get_result:
+ *@a_this: the current instance of #CRDocHandler
+ *@a_result: out parameter. The returned result.
+ *
+ *Gets the private parsing result.
+ *The private parsing result is used by libcroco only.
+ *
+ *Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_doc_handler_get_result (CRDocHandler const * a_this, gpointer * a_result)
+{
+        g_return_val_if_fail (a_this && a_this->priv, CR_BAD_PARAM_ERROR);
+
+        *a_result = a_this->priv->result;
+
+        return CR_OK;
+}
+
+/**
+ * cr_doc_handler_set_result:
+ *@a_this: the current instance of #CRDocHandler
+ *@a_result: the new result.
+ *
+ *Sets the private parsing context.
+ *This is used by libcroco only.
+ *
+ *Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_doc_handler_set_result (CRDocHandler * a_this, gpointer a_result)
+{
+        g_return_val_if_fail (a_this && a_this->priv, CR_BAD_PARAM_ERROR);
+        a_this->priv->result = a_result;
+        return CR_OK;
+}
+
+/**
+ *cr_doc_handler_set_default_sac_handler:
+ *@a_this: a pointer to the current instance of #CRDocHandler.
+ *
+ *Sets the sac handlers contained in the current
+ *instance of DocHandler to the default handlers.
+ *For the time being the default handlers are
+ *test handlers. This is expected to change in a
+ *near future, when the libcroco gets a bit debugged.
+ *
+ *Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_doc_handler_set_default_sac_handler (CRDocHandler * a_this)
+{
+        g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
+
+        a_this->start_document = NULL;
+        a_this->end_document = NULL;
+        a_this->import_style = NULL;
+        a_this->namespace_declaration = NULL;
+        a_this->comment = NULL;
+        a_this->start_selector = NULL;
+        a_this->end_selector = NULL;
+        a_this->property = NULL;
+        a_this->start_font_face = NULL;
+        a_this->end_font_face = NULL;
+        a_this->start_media = NULL;
+        a_this->end_media = NULL;
+        a_this->start_page = NULL;
+        a_this->end_page = NULL;
+        a_this->ignorable_at_rule = NULL;
+        a_this->error = NULL;
+        a_this->unrecoverable_error = NULL;
+        return CR_OK;
+}
+
+/**
+ * cr_doc_handler_ref:
+ *@a_this: the current instance of #CRDocHandler.
+ */
+void
+cr_doc_handler_ref (CRDocHandler * a_this)
+{
+        g_return_if_fail (a_this);
+
+        a_this->ref_count++;
+}
+
+/**
+ * cr_doc_handler_unref:
+ *@a_this: the current instance of #CRDocHandler.
+ *
+ *Decreases the ref count of the current instance of #CRDocHandler.
+ *If the ref count reaches '0' then, destroys the instance.
+ *
+ *Returns TRUE if the instance as been destroyed, FALSE otherwise.
+ */
+gboolean
+cr_doc_handler_unref (CRDocHandler * a_this)
+{
+        g_return_val_if_fail (a_this, FALSE);
+
+        if (a_this->ref_count > 0) {
+                a_this->ref_count--;
+        }
+
+        if (a_this->ref_count == 0) {
+                cr_doc_handler_destroy (a_this);
+                return TRUE;
+        }
+        return FALSE ;
+}
+
+/**
+ * cr_doc_handler_destroy:
+ *@a_this: the instance of #CRDocHandler to
+ *destroy.
+ *
+ *The destructor of the #CRDocHandler class.
+ */
+void
+cr_doc_handler_destroy (CRDocHandler * a_this)
+{
+        g_return_if_fail (a_this);
+
+        if (a_this->priv) {
+                g_free (a_this->priv);
+                a_this->priv = NULL;
+        }
+        g_free (a_this);
+}
+
+/**
+ * cr_doc_handler_associate_a_parser:
+ *Associates a parser to the current document handler
+ *
+ *@a_this: the current instance of document handler.
+ *@a_parser: the parser to associate.
+ */
+void
+cr_doc_handler_associate_a_parser (CRDocHandler *a_this,
+				   gpointer a_parser)
+{
+	g_return_if_fail (a_this && PRIVATE (a_this) 
+			  && a_parser) ;
+
+	PRIVATE (a_this)->parser = a_parser ;
+}