From: Andrea Zagli <azagli@libero.it>
Date: Thu, 5 Nov 2015 19:38:48 +0000 (+0100)
Subject: Added functions ZakFormForm::load_from_xml and ::load_from_file.
X-Git-Tag: debian/0.0.1-1~40
X-Git-Url: https://saetta.ns0.it/gitweb?a=commitdiff_plain;h=854ecb76fd6d967452d316ad97ec50558dbc9133;p=zakform%2Flibzakform

Added functions ZakFormForm::load_from_xml and ::load_from_file.
---

diff --git a/configure.ac b/configure.ac
index b05d446..5d14ebb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,7 +41,8 @@ AM_GLIB_GNU_GETTEXT
 # Checks for libraries.
 PKG_CHECK_MODULES(ZAKFORM, [glib-2.0 >= 2.36
                             gobject-2.0 >= 2.36
-                            gmodule-2.0 >= 2.0.0])
+                            gmodule-2.0 >= 2.0.0
+                            libxml-2.0 >= 2.0.0])
 
 AC_SUBST(ZAKFORM_CFLAGS)
 AC_SUBST(ZAKFORM_LIBS)
diff --git a/libzakform.pc.in b/libzakform.pc.in
index 0c0cf06..9cfc80a 100644
--- a/libzakform.pc.in
+++ b/libzakform.pc.in
@@ -7,6 +7,6 @@ modulesdir=@libdir@/@PACKAGE@/modules
 Name: @PACKAGE_NAME@
 Description: Class for form.
 Version: @PACKAGE_VERSION@
-Requires: glib-2.0 >= 2.36 gobject-2.0
+Requires: glib-2.0 >= 2.36 gobject-2.0 gmodule-2.0 libxml-2.0
 Libs: -L${libdir} -lzakform
 Cflags: -I${includedir}
diff --git a/src/form.c b/src/form.c
index 166262b..1661830 100644
--- a/src/form.c
+++ b/src/form.c
@@ -23,12 +23,18 @@
 #include <glib/gi18n-lib.h>
 #include <gmodule.h>
 
+#include <libxml/xpath.h>
+
 #include "form.h"
+#include "formelement.h"
 
 #ifdef G_OS_WIN32
 	#include <windows.h>
 #endif
 
+typedef ZakFormElement *(* FormElementConstructorFunc) (void);
+typedef gboolean (* FormElementXmlParsingFunc) (ZakFormElement *, xmlNodePtr);
+
 static void zak_form_form_class_init (ZakFormFormClass *class);
 static void zak_form_form_init (ZakFormForm *zak_form_form);
 
@@ -136,6 +142,123 @@ zak_form_form_init (ZakFormForm *zak_form_form)
 	zak_form_form_load_modules (zak_form_form);
 }
 
+/**
+ * zak_form_form_load_from_xml:
+ * @zakform:
+ * @xmldoc:
+ *
+ */
+gboolean
+zak_form_form_load_from_xml (ZakFormForm *zakform, xmlDoc *xmldoc)
+{
+	ZakFormFormPrivate *priv;
+	xmlNode *cur;
+
+	gboolean ret;
+
+	ZakFormElement *element;
+	gchar *type;
+	guint i;
+
+	FormElementConstructorFunc element_constructor;
+	FormElementXmlParsingFunc element_xml_parsing;
+
+	g_return_val_if_fail (ZAK_FORM_IS_FORM (zakform), FALSE);
+	g_return_val_if_fail (xmldoc != NULL, FALSE);
+
+	ret = FALSE;
+
+	cur = xmlDocGetRootElement (xmldoc);
+	if (cur != NULL)
+		{
+			if (xmlStrcmp (cur->name, (const xmlChar *)"zakform") == 0)
+				{
+					ret = TRUE;
+
+					priv = zak_form_form_get_instance_private (zakform);
+
+					cur = cur->children;
+					while (cur)
+						{
+							if (xmlStrcmp (cur->name, (const xmlChar *)"element") == 0)
+								{
+								    element = NULL;
+
+									type = xmlGetProp (cur, (const xmlChar *)"type");
+
+									/* for each module */
+									for (i = 0; i < priv->ar_modules->len; i++)
+										{
+											if (g_module_symbol ((GModule *)g_ptr_array_index (priv->ar_modules, i),
+																 g_strconcat (type, "_new", NULL),
+																 (gpointer *)&element_constructor))
+												{
+													if (element_constructor != NULL)
+														{
+															element = element_constructor ();
+															if (element != NULL)
+																{
+																	zak_form_form_add_element (zakform, element);
+																	if (g_module_symbol ((GModule *)g_ptr_array_index (priv->ar_modules, i),
+																		                 g_strconcat (type, "_xml_parsing", NULL),
+																						 (gpointer *)&element_xml_parsing))
+																		{
+																			if (element_xml_parsing != NULL)
+																				{
+																					element_xml_parsing (element, cur);
+																				}
+																		}
+																}
+															break;
+														}
+												}
+										}
+
+									if (element == NULL)
+										{
+											g_warning (_("Unknown element type «%s»."), type);
+										}
+								}
+
+							cur = cur->next;
+						}
+				}
+			else
+				{
+					g_warning (_("The file is not a valid ZakForm definition file."));
+				}
+		}
+
+	return ret;
+}
+
+/**
+ * zak_form_form_load_from_file:
+ * @zakform:
+ * @filename:
+ *
+ */
+gboolean
+zak_form_form_load_from_file (ZakFormForm *zakform, const gchar *filename)
+{
+	xmlDoc *xdoc;
+
+	gboolean ret;
+
+	g_return_val_if_fail (ZAK_FORM_IS_FORM (zakform), FALSE);
+	g_return_val_if_fail (filename != NULL, FALSE);
+
+	ret = FALSE;
+
+	xdoc = xmlParseFile (filename);
+	if (xdoc != NULL)
+		{
+			ret = zak_form_form_load_from_xml (zakform, xdoc);
+		}
+
+	return ret;
+}
+
 /**
  * zak_form_form_add_element:
  * @zakform:
diff --git a/src/form.h b/src/form.h
index f1179b6..0bb4bdc 100644
--- a/src/form.h
+++ b/src/form.h
@@ -22,6 +22,8 @@
 
 #include <glib-object.h>
 
+#include <libxml/tree.h>
+
 #include "formelement.h"
 
 
@@ -39,6 +41,9 @@ struct _ZakFormFormClass
 };
 
 
+gboolean zak_form_form_load_from_xml (ZakFormForm *zakform, xmlDoc *xmldoc);
+gboolean zak_form_form_load_from_file (ZakFormForm *zakform, const gchar *filename);
+
 gboolean zak_form_form_add_element (ZakFormForm *zakform, ZakFormElement *element);
 
 void zak_form_form_clear (ZakFormForm *zakform);