# HG changeset patch
# User paulb
# Date 1128216827 0
# Node ID b3d790a895e323119398ee1940b7566a2c1c86d2
# Parent  b8d6f347575f2c6f099108c74d612294c04316e5
[project @ 2005-10-02 01:33:47 by paulb]
Changed some parameter names in Prepare, adding an ensure_input_stylesheet
function.
Added a prepare_initialiser method to the WebStack resource, along with
an init_resources standard attribute.

diff -r b8d6f347575f -r b3d790a895e3 XSLForms/Prepare.py
--- a/XSLForms/Prepare.py	Sun Oct 02 01:20:06 2005 +0000
+++ b/XSLForms/Prepare.py	Sun Oct 02 01:33:47 2005 +0000
@@ -77,17 +77,30 @@
 
         make_stylesheet_fragment(template_name, output_name, element_id)
 
-def make_input_stylesheet(template_name, output_name, stylesheet_names=["PrepareMacro.xsl", "Schema.xsl", "Input.xsl"], encoding=None):
+def make_input_stylesheet(template_name, input_name, stylesheet_names=["PrepareMacro.xsl", "Schema.xsl", "Input.xsl"], encoding=None):
 
     """
     Make an input stylesheet using the file with the given 'template_name',
-    producing a file with the given 'output_name'. Such stylesheets are used to
+    producing a file with the given 'input_name'. Such stylesheets are used to
     ensure the general structure of an input document.
     """
 
     stylesheets = [os.path.join(resource_dir, stylesheet_name) for stylesheet_name in stylesheet_names]
     proc = XSLOutput.Processor(stylesheets)
     template = libxml2dom.parse(template_name)
-    proc.send_output(open(output_name, "wb"), encoding, template)
+    proc.send_output(open(input_name, "wb"), encoding, template)
+
+def ensure_input_stylesheet(template_name, input_name):
+
+    """
+    Ensure the presence of an input stylesheet, preparing it if necessary
+    using the file with the given 'template_name', producing a file with the
+    given 'input_name'.
+    """
+
+    if not os.path.exists(input_name) or \
+        os.path.getmtime(input_name) < os.path.getmtime(template_name):
+
+        make_input_stylesheet(template_name, input_name)
 
 # vim: tabstop=4 expandtab shiftwidth=4
diff -r b8d6f347575f -r b3d790a895e3 XSLForms/Resources.py
--- a/XSLForms/Resources.py	Sun Oct 02 01:20:06 2005 +0000
+++ b/XSLForms/Resources.py	Sun Oct 02 01:33:47 2005 +0000
@@ -47,6 +47,12 @@
                                 mark a region of those documents as the fragment
                                 to be updated upon "in-page" requests
 
+      * init_resources        - a dictionary mapping initialiser/input
+                                identifiers to (template_filename,
+                                input_filename) tuples, indicating the template
+                                and initialiser/input stylesheet filenames to be
+                                employed
+                                
       * transform_resources   - a dictionary mapping transform identifiers to
                                 lists of stylesheet filenames for use with the
                                 transformation methods
@@ -162,6 +168,22 @@
         proc = XSLOutput.Processor(stylesheet_filenames, parameters=stylesheet_parameters, references=references)
         return proc.get_result(document)
 
+    def prepare_initialiser(self, input_identifier):
+
+        """
+        Prepare an initialiser/input transformation using the given
+        'input_identifier'.
+
+        Return the full path to the input stylesheet for use with 'send_output'
+        or 'get_result'.
+        """
+
+        template_filename, input_filename = self.init_resources[input_identifier]
+        input_path = os.path.abspath(os.path.join(self.resource_dir, input_filename))
+        template_path = os.path.abspath(os.path.join(self.resource_dir, template_filename))
+        XSLForms.Prepare.ensure_input_stylesheet(template_path, input_path)
+        return input_path
+
     def prepare_transform(self, transform_identifier):
 
         """