[mlview-list]patch xslt
- From: Stephane Bonhomme <s bonhomme wanadoo fr>
- To: mlview-list gnome org
- Subject: [mlview-list]patch xslt
- Date: Mon, 24 Nov 2003 07:22:33 +0100
Hi everebody
Here is a patch that makes mlview link with libxslt from gnome and
allows user to apply xslt transformations in mlview.
greetings, have fun
Stephane.
--
Stéphane Bonhomme - Formations, Conseil et Réalisations
Ingénierie Documentaire - Technologies Web - Logiciels Libres
s bonhomme wanadoo fr - http://perso.wanadoo.fr/s.bonhomme
04 76 17 09 40 / 06 88 57 27 08
? src/mlview-xslt-utils.c
? src/mlview-xslt-utils.h
Index: configure.in
===================================================================
RCS file: /cvs/gnome/mlview/configure.in,v
retrieving revision 1.48
diff -r1.48 configure.in
22a23
> LIBXSLT_VERSION=1.0.33
29a31
> AC_SUBST(LIBXSLT_VERSION)
97a100,104
> dnl checking for libxslt
> dnl *******************************
> PKG_CHECK_MODULES(LIBXSLT,[libxslt >= $LIBXSLT_VERSION])
>
> dnl *******************************
128,129c135,136
< MLVIEW_LIBS="$LIBXML2_LIBS $LIBGLADE2_LIBS $LIBGNOMEUI2_LIBS"
< MLVIEW_CFLAGS="$LIBXML2_CFLAGS $LIBGLADE2_CFLAGS $LIBGNOMEUI2_CFLAGS"
---
> MLVIEW_LIBS="$LIBXML2_LIBS $LIBXSLT_LIBS $LIBGLADE2_LIBS $LIBGNOMEUI2_LIBS"
> MLVIEW_CFLAGS="$LIBXML2_CFLAGS $LIBXSLT_CFLAGS $LIBGLADE2_CFLAGS $LIBGNOMEUI2_CFLAGS"
157c164
< if test "x$USER" = "xdodji" -o "x$MLVIEW_DEVEL" = "xon" ; then
---
> if test "x$USER" = "waloo_" -o "x$MLVIEW_DEVEL" = "xon" ; then
Index: src/Makefile.am
===================================================================
RCS file: /cvs/gnome/mlview/src/Makefile.am,v
retrieving revision 1.29
diff -r1.29 Makefile.am
55c55,57
< mlview-icon-tree.h
---
> mlview-icon-tree.h \
> mlview-xslt-utils.c \
> mlview-xslt-utils.h
Index: src/mlview-app.c
===================================================================
RCS file: /cvs/gnome/mlview/src/mlview-app.c,v
retrieving revision 1.55
diff -r1.55 mlview-app.c
512a513,526
> apply_xslt_cb (GtkWidget * a_menu_item,
> MlViewAppContext * a_context)
> {
> MlViewEditor *editor;
>
> g_return_if_fail (a_context != NULL);
> g_return_if_fail (a_menu_item != NULL);
>
> editor = mlview_app_context_get_element (a_context,
> "MlViewEditor");
> mlview_xslt_transform_document_interactive (editor) ;
> }
>
> static void
673a688,694
>
> GNOMEUIINFO_SEPARATOR,
>
> GNOMEUIINFO_ITEM (N_("Apply XSLT..."),
> N_
> ("transform document using xslt stylesheet"),
> apply_xslt_cb, NULL),
Index: src/mlview-editor.c
===================================================================
RCS file: /cvs/gnome/mlview/src/mlview-editor.c,v
retrieving revision 1.63
diff -r1.63 mlview-editor.c
34a35
> #include "mlview-xslt-utils.h"
181a183,184
> static GList *build_doc_list_from_hashtable (GHashTable * a_docs);
>
780a784,793
> static GList *
> build_doc_list_from_hashtable (GHashTable * a_docs)
> {
> GList *result = NULL;
>
> g_hash_table_foreach (a_docs,
> (GHFunc) add_hash_key_to_list,
> &result);
> return result;
> }
1148a1162,1180
> *Getter of the glist of opened docs
> *#MlViewXMLDocument *
> *
> * param a_this the current instance of #MlViewEditor.
> * return a GList* of #MlViewXMLDocument, taht the caller
> * is responsble to free
> */
> GList *
> mlview_editor_get_list_open_doc (MlViewEditor * a_this)
> {
> GList *docs = NULL;
>
> docs = build_doc_list_from_hashtable
> (PRIVATE (a_this)->mlview_xml_docs);
>
> return docs;
> }
>
> /**
2305a2338,2366
> }
>
>
> /**
> *Applies a XSLT stylesheet to the current document
> *displaying a dialog for xslt selection and opens
> *the transformation resulting document in the editor
> * param a_this the current instance of #MlViewEditor.
> *
> */
> gint
> mlview_xslt_transform_document_interactive (MlViewEditor *a_this)
> {
> MlViewXMLDocument *src_doc = NULL;
> MlViewXMLDocument *xsl_doc = NULL;
> MlViewXMLDocument *res_doc = NULL;
>
> g_return_val_if_fail (a_this != NULL, -1);
> g_return_val_if_fail (MLVIEW_IS_EDITOR (a_this), -1);
> g_return_val_if_fail (PRIVATE (a_this) != NULL, -1);
>
> src_doc = mlview_editor_get_cur_doc (a_this);
> xsl_doc = mlview_xslt_select_xsl_doc (a_this);
> if (xsl_doc != NULL) {
> res_doc = mlview_xslt_transform_document(src_doc, xsl_doc);
> mlview_xml_document_unref(xsl_doc);
> if (res_doc != NULL)
> mlview_editor_create_new_view_on_document (a_this, res_doc, MLVIEW_XML_DOC_TREE_VIEW);
> }
Index: src/mlview-editor.h
===================================================================
RCS file: /cvs/gnome/mlview/src/mlview-editor.h,v
retrieving revision 1.30
diff -r1.30 mlview-editor.h
115a116,117
> GList *mlview_editor_get_list_open_doc (MlViewEditor * a_this);
>
218a221
> gint mlview_xslt_transform_document_interactive (MlViewEditor *a_this);
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8-*- */
/*
*This file is part of MlView
*
*MlView 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.
*
*MlView 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 MlView.
*see the file COPYING.
*If not, write to the
*Free Software Foundation,
*Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*See COPYRIGHT file for copyright information.
*/
#include <stdio.h>
#include <libxslt/xslt.h>
#include <libxslt/xsltInternals.h>
#include <libxslt/transform.h>
#include "mlview-editor.h"
#include "mlview-utils.h"
#include "mlview-xml-document.h"
#include "mlview-xslt-utils.h"
/**
* file
*The mlview xslt transformer
*
*This is a wrapper of the libxslt from Daniel Veillard.
*It provides an interface to apply a xslt stylesheet to
*xml document opened in mlview.
*
*/
#define PRIVATE(object) (object)->priv
/*======================================================
*private helper functions
*=====================================================*/
/**
* Checks whether a mlview document is an xslt stylesheet
* The test is performed on the namespaces declared on
* the root node of the document
* param mlv_xml_doc : the document to test
* return TRUE if the document is a xslt stylesheet,
*FALSE otherwise.
*/
gboolean
mlview_xslt_is_xslt_doc(MlViewXMLDocument* mlv_xml_doc)
{
xmlDocPtr xml_doc;
xmlNodePtr root_node;
xmlNs *cur_ns = NULL ;
gint found=FALSE;
xml_doc = mlview_xml_document_get_xml_document(mlv_xml_doc);
root_node = xmlDocGetRootElement (xml_doc);
for (cur_ns = root_node->nsDef ;
!found && cur_ns;
cur_ns = cur_ns->next) {
found = (gboolean)(!xmlStrcmp(cur_ns->href,
XSLT_NAMESPACE_URI));
}
return found;
}
/**
*Applies a xslt stylesheet to a xml document
*at libxml level
* param src_doc : the libxml2 xmlDocPtr to the source doc
* param xsl_doc : the libxml2 xmlDocPtr to the xslt stylesheet
* return the xmlDocPtr to the result of the transformation
*
*/
static xmlDocPtr
mlview_xslt_do_transform (xmlDocPtr src_doc,
xmlDocPtr xsl_doc)
{
xmlDocPtr res_doc;
xmlDocPtr xsl_copy_doc;
xsltStylesheetPtr xsl_stylesheet=NULL;
const char *params[16+1];
params[0] = NULL;
/* makes a copy of the stylesheet */
xsl_copy_doc = xmlCopyDoc (xsl_doc, 1);
xsl_stylesheet = xsltParseStylesheetDoc (xsl_copy_doc);
res_doc = xsltApplyStylesheet(xsl_stylesheet, src_doc, params);
xsltFreeStylesheet(xsl_stylesheet);
return res_doc;
}
/**
*Applies a xslt stylesheet to a xml document
*at mlview level
* param src_doc : the libxml2 xmlDocPtr to the source doc
* param xsl_doc : the libxml2 xmlDocPtr to the xslt stylesheet
* return the xmlDocPtr to the result of the transformation
*
*/
static MlViewXMLDocument*
mlview_xslt_do_mlview_transform (MlViewXMLDocument* mlv_src_doc,
MlViewXMLDocument* mlv_xsl_doc)
{
MlViewXMLDocument* mlv_res_doc = NULL;
MlViewAppContext *app_context;
xmlDocPtr src_doc, xsl_doc, res_doc;
app_context = mlview_xml_document_get_app_context(mlv_src_doc);
src_doc = mlview_xml_document_get_xml_document(mlv_src_doc);
xsl_doc = mlview_xml_document_get_xml_document(mlv_xsl_doc);
res_doc = mlview_xslt_do_transform (src_doc, xsl_doc);
if (res_doc != NULL) {
mlv_res_doc = mlview_xml_document_new (res_doc, app_context);
} else {
mlview_utils_display_error_dialog (app_context,
"%s",
_("XSLT transformation failed"));
}
return mlv_res_doc;
}
/**
*
*Shows a file chooser dialog to select an external stylesheet
*Loads the file selected, and performs a xslt namespace check
* param a_this : mlview editor context
* return the document selected or NULL if user cancels or
*document is not an xslt stylesheet
*
*/
static MlViewXMLDocument*
mlview_xslt_stylesheet_choose_and_open (MlViewEditor *a_this)
{
GtkWidget *file_sel;
enum MLVIEW_SELECTED_BUTTON result_file_sel;
gchar *file_name = NULL;
MlViewXMLDocument *mlv_xsl_doc = NULL;
MlViewAppContext *app_context = NULL;
file_sel = mlview_file_selection_new();
result_file_sel=mlview_file_selection_run(MLVIEW_FILE_SELECTION(file_sel), TRUE);
switch (result_file_sel) {
case OK_BUTTON:
file_name = g_strdup (gtk_file_selection_get_filename
(GTK_FILE_SELECTION
(file_sel)));
if (file_name && strcmp (file_name, "")) {
/* mlview_editor_load_xml_file (a_this, file_name); */
app_context = mlview_editor_get_app_context(a_this);
mlv_xsl_doc = mlview_xml_document_open(file_name, app_context);
mlview_xml_document_ref(mlv_xsl_doc);
if (!mlview_xslt_is_xslt_doc(mlv_xsl_doc)) {
/*display error box and close doc*/
mlview_utils_display_error_dialog (app_context,
"%s",
_("document is not an XSLT Stylesheet"));
mlview_xml_document_unref(mlv_xsl_doc);
mlv_xsl_doc=NULL;
}
}
if (file_name) {
g_free (file_name);
file_name = NULL;
}
break;
case CANCEL_BUTTON:
case WINDOW_CLOSED:
default:
break;
}
return mlv_xsl_doc;
}
/*=================================================
*public methods
*=================================================*/
/**
*
*Shows the xslt chooser dialog
* param a_this : mlview editor context
* return the document selected or NULL if user cancels or
*document is not an xslt stylesheet
*
*/
MlViewXMLDocument*
mlview_xslt_select_xsl_doc (MlViewEditor *a_this)
{
GtkWidget *dialog1;
GtkWidget *dialog_vbox1;
GtkWidget *hbox1;
GtkWidget *label1;
GtkWidget *menu;
GtkWidget *option_menu;
GtkWidget *menu_item;
GtkWidget *sel_menu_item;
GtkWidget *dialog_action_area1;
GtkWidget *button4;
GtkWidget *button5;
GtkWidget *button6;
GList *docs, *mobile_doc_ptr;
GList *xslt_docs = NULL;
MlViewXMLDocument *mobile_mlv_doc;
MlViewXMLDocument *mlv_xsl_doc=NULL;
gchar *file_path, *base_name;
gint result;
g_return_val_if_fail (a_this != NULL, NULL);
g_return_val_if_fail (MLVIEW_IS_EDITOR (a_this), NULL);
g_return_val_if_fail (PRIVATE (a_this) != NULL, NULL);
/* builds a GList of opened XSLT doc */
docs = mlview_editor_get_list_open_doc (a_this);
if (docs != NULL) {
for (mobile_doc_ptr = g_list_first(docs);
mobile_doc_ptr;
mobile_doc_ptr = g_list_next(mobile_doc_ptr)) {
mobile_mlv_doc = MLVIEW_XML_DOCUMENT(mobile_doc_ptr->data);
if (mlview_xslt_is_xslt_doc(mobile_mlv_doc)) {
xslt_docs = g_list_append (xslt_docs, (gpointer)mobile_mlv_doc);
}
}
}
/* build dialog window */
dialog1 = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dialog1), _("Select XSLT"));
dialog_vbox1 = GTK_DIALOG (dialog1)->vbox;
gtk_widget_show (dialog_vbox1);
hbox1 = gtk_hbox_new (FALSE, 0);
gtk_widget_show (hbox1);
gtk_box_pack_start (GTK_BOX (dialog_vbox1), hbox1, TRUE, TRUE, 0);
if (xslt_docs != NULL) {
label1 = gtk_label_new (_("Select xslt stylesheet"));
} else {
label1 = gtk_label_new (_("No xslt stylesheet is open"));
}
gtk_widget_show (label1);
gtk_box_pack_start (GTK_BOX (hbox1), label1, FALSE, FALSE, 10);
/* build select xslt menu */
if (xslt_docs != NULL) {
option_menu = gtk_option_menu_new();
menu = gtk_menu_new();
gtk_option_menu_set_menu (GTK_OPTION_MENU(option_menu), menu);
gtk_widget_show (menu);
gtk_widget_show (option_menu);
gtk_box_pack_start (GTK_BOX (hbox1), option_menu, TRUE, TRUE, 0);
for (mobile_doc_ptr = g_list_first(xslt_docs);
mobile_doc_ptr;
mobile_doc_ptr = g_list_next(mobile_doc_ptr)) {
mobile_mlv_doc = MLVIEW_XML_DOCUMENT(mobile_doc_ptr->data);
file_path = mlview_xml_document_get_file_path (mobile_mlv_doc);
base_name = (gchar *) g_basename (file_path);
menu_item = gtk_menu_item_new_with_label(base_name);
gtk_menu_shell_append (GTK_MENU_SHELL(menu), menu_item);
gtk_widget_show(menu_item);
g_object_set_data (G_OBJECT(menu_item), "mlview_doc", mobile_mlv_doc);
}
gtk_option_menu_set_history(GTK_OPTION_MENU(option_menu), 0);
}
/** end menu **/
dialog_action_area1 = GTK_DIALOG (dialog1)->action_area;
gtk_widget_show (dialog_action_area1);
gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog_action_area1), GTK_BUTTONBOX_END);
button4 = gtk_button_new_with_mnemonic (_("Browse..."));
gtk_widget_show (button4);
gtk_dialog_add_action_widget (GTK_DIALOG (dialog1), button4, MLVIEW_XSLT_RESPONSE_BROWSE);
GTK_WIDGET_SET_FLAGS (button4, GTK_CAN_DEFAULT);
button5 = gtk_button_new_from_stock ("gtk-cancel");
gtk_widget_show (button5);
gtk_dialog_add_action_widget (GTK_DIALOG (dialog1), button5, GTK_RESPONSE_CANCEL);
GTK_WIDGET_SET_FLAGS (button5, GTK_CAN_DEFAULT);
if (xslt_docs != NULL) {
button6 = gtk_button_new_from_stock ("gtk-ok");
gtk_widget_show (button6);
gtk_dialog_add_action_widget (GTK_DIALOG (dialog1), button6, GTK_RESPONSE_OK);
GTK_WIDGET_SET_FLAGS (button6, GTK_CAN_DEFAULT);
}
/* runs the dialog box */
result = gtk_dialog_run (GTK_DIALOG (dialog1));
switch (result) {
case GTK_RESPONSE_OK:
sel_menu_item = gtk_menu_get_active(GTK_MENU(menu));
mlv_xsl_doc = g_object_get_data (G_OBJECT(sel_menu_item), "mlview_doc");
break;
case GTK_RESPONSE_CANCEL:
break;
case MLVIEW_XSLT_RESPONSE_BROWSE:
mlv_xsl_doc = mlview_xslt_stylesheet_choose_and_open(a_this);
break;
}
g_list_free(docs);
g_list_free(xslt_docs);
gtk_widget_destroy (dialog1);
return mlv_xsl_doc;
}
/**
*Applies a XSLT stylesheet to an mlview document
*
* param src_doc the source mlview xml document
* param xsl_doc the xslt mlview xml document
* result the document resuting of the transformation
* or NULL if it fails
*
*/
MlViewXMLDocument *
mlview_xslt_transform_document (MlViewXMLDocument *src_doc,
MlViewXMLDocument *xsl_doc)
{
g_return_val_if_fail (src_doc != NULL, NULL);
g_return_val_if_fail (MLVIEW_IS_XML_DOCUMENT (src_doc),
NULL);
g_return_val_if_fail (xsl_doc != NULL, NULL);
g_return_val_if_fail (MLVIEW_IS_XML_DOCUMENT (xsl_doc),
NULL);
MlViewXMLDocument *res_doc = NULL;
res_doc = mlview_xslt_do_mlview_transform(src_doc, xsl_doc);
return res_doc;
}
#ifndef __mlview_xslt_utils_XSLT_UTILS_H__
#define __mlview_xslt_utils_XSLT_UTILS_H__
#include <glib-object.h>
G_BEGIN_DECLS
/* xslt namespace uri */
#define XSLT_NAMESPACE_URI "http://www.w3.org/1999/XSL/Transform";
/* select xslt form response */
#define MLVIEW_XSLT_RESPONSE_BROWSE 3
MlViewXMLDocument *mlview_xslt_select_xsl_doc (MlViewEditor *a_this);
MlViewXMLDocument *mlview_xslt_transform_document (MlViewXMLDocument *src_doc, MlViewXMLDocument *xsl_doc);
G_END_DECLS
#endif /* __mlview_xslt_utils_XSLT_UTILS_H__ */
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