diff options
Diffstat (limited to 'src/yelp-xslt-pager.c')
| -rw-r--r-- | src/yelp-xslt-pager.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/yelp-xslt-pager.c b/src/yelp-xslt-pager.c index aba64fff..0439a411 100644 --- a/src/yelp-xslt-pager.c +++ b/src/yelp-xslt-pager.c @@ -162,6 +162,7 @@ xslt_pager_process (YelpPager *pager) GError *error = NULL; debug_print (DB_FUNCTION, "entering\n"); + debug_print (DB_PROFILE, "entering %s", __FUNCTION__); g_return_val_if_fail (pager != NULL, FALSE); g_return_val_if_fail (YELP_IS_XSLT_PAGER (pager), FALSE); @@ -276,6 +277,8 @@ xslt_pager_process (YelpPager *pager) } g_object_unref (pager); + + debug_print (DB_PROFILE, "leaving %s", __FUNCTION__); return FALSE; } @@ -459,9 +462,114 @@ xslt_yelp_cache (xsltTransformContextPtr ctxt, xmlNodePtr inst, xsltStylePreCompPtr comp) { + static GHashTable *keyhash = NULL; + xmlXPathObjectPtr nodeexpr = NULL; + xsltStylesheetPtr style = NULL; + xmlNodePtr nodeptr; + xmlNodePtr tmpnode; + xmlNodePtr tmpnode2; + xmlChar *keyprop = NULL; + xmlChar *nodeprop = NULL; + const char *old_outfile; + xmlDocPtr old_output; + xmlNodePtr old_insert; + xmlDocPtr new_doc = NULL; + gchar *key; + + if (!ctxt || !node || !inst || !comp) + return; + + keyprop = xmlGetProp (inst, BAD_CAST "key"); + if (!keyprop) + return; + + nodeprop = xmlGetProp (inst, BAD_CAST "node"); + if (!nodeprop) { + xmlFree (keyprop); + return; + } + + nodeexpr = xmlXPathEvalExpression (nodeprop, ctxt->xpathCtxt); + if (!nodeexpr) + goto done; + + /* if we haven't initialized the hash yet, do so */ + if (!keyhash) + keyhash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, xmlFree); + + if (nodeexpr->type != XPATH_NODESET) { + debug_print (DB_WARN, "node attribute [%s] did not evaluate to a nodeset\n", + nodeprop); + goto done; + } + + nodeptr = nodeexpr->nodesetval->nodeTab[0]; + if (!nodeptr) + goto done; + + debug_print (DB_DEBUG, "key=%s node=%s ptr=%p\n", + (gchar *)keyprop, (gchar *)nodeprop, (void *)nodeptr); + + key = g_strdup_printf ("%s%p", keyprop, (void *)nodeptr); + tmpnode = g_hash_table_lookup (keyhash, key); + + if (tmpnode) { + debug_print (DB_DEBUG, "found cached result\n"); + tmpnode2 = xmlDocCopyNode (tmpnode, tmpnode->doc, 1); + xmlAddChild (ctxt->insert, tmpnode2); + g_free (key); + goto done; + } + + old_outfile = ctxt->outputFile; + old_output = ctxt->output; + old_insert = ctxt->insert; + ctxt->outputFile = "test"; + + style = xsltNewStylesheet (); + if (style == NULL) { + xsltTransformError (ctxt, NULL, inst, _("Out of memory")); + g_free (key); + goto done; + } + + style->omitXmlDeclaration = TRUE; + + new_doc = xmlNewDoc (BAD_CAST "1.0"); + new_doc->charset = XML_CHAR_ENCODING_UTF8; + new_doc->dict = ctxt->dict; + xmlDictReference (new_doc->dict); + + ctxt->output = new_doc; + ctxt->insert = (xmlNodePtr) new_doc; + xsltApplyOneTemplate (ctxt, node, inst->children, NULL, NULL); + + ctxt->outputFile = old_outfile; + ctxt->output = old_output; + ctxt->insert = old_insert; + + /* this copy of the node we put in the cache */ + tmpnode = xmlCopyNode (new_doc->children, 1); + g_hash_table_insert (keyhash, key, tmpnode); + + /* this copy of the node gets attached to the result tree */ + tmpnode2 = xmlDocCopyNode (tmpnode, tmpnode->doc, 1); + xmlAddChild (ctxt->insert, tmpnode2); while (gtk_events_pending ()) gtk_main_iteration (); /* FIXME : check for cancel */ + +done: + if (keyprop) + xmlFree (keyprop); + if (nodeprop) + xmlFree (nodeprop); + if (nodeexpr) + xmlXPathFreeObject (nodeexpr); + if (new_doc) + xmlFreeDoc (new_doc); + if (style) + xsltFreeStylesheet (style); } |