Removed buggy html2wl XSLT - replaced with a Javascript HTML serializer.

[redakcja.git] / platforma / static / js / xslt.js

diff --git a/platforma/static/js/xslt.js b/platforma/static/js/xslt.js
index c3f13d6..b12bc77 100644 (file)
--- a/platforma/static/js/xslt.js
+++ b/platforma/static/js/xslt.js
@@ -71,7 +71,7 @@ function serialize(element, mode) {
     result.push('<');
     result.push(element.tagName);
     
-    // Mozilla nie uważa deklaracji namespace za atrybuty
+    // Mozilla nie uważa deklaracji namespace za atrybuty | --lqc: bo nie są one atrybutami!
     var ns = element.tagName.indexOf(':');
     if (ns != -1 && $.browser.mozilla) {
         result.push(' xmlns:');
@@ -153,52 +153,120 @@ function withStylesheets(block, onError) {
 
 function xml2html(options) {
     withStylesheets(function() {
-        var xml = options.xml.replace(/\/\s+/g, '<br />');
+        var xml = options.xml.replace(/\/\s+/g, '<br />');                             
         var parser = new DOMParser();
         var serializer = new XMLSerializer();
-        var doc = parser.parseFromString(xml, 'text/xml');
+        var doc = parser.parseFromString(xml, 'text/xml');             
         var error = $('parsererror', doc);
         
         if (error.length == 0) {
-            doc = xml2htmlStylesheet.transformToFragment(doc, document);
+            doc = xml2htmlStylesheet.transformToDocument(doc);
+                       console.log(doc);
             error = $('parsererror', doc);
         }
         
         if (error.length > 0 && options.error) {
             options.error(error.text());
-        } else {
-            options.success(doc.firstChild);
+        } else {                       
+            options.success(document.importNode(doc.documentElement, true));
         }
     }, function() { options.error && options.error('Nie udało się załadować XSLT'); });
 }
 
+/* USEFULL CONSTANTS */
+const ELEMENT_NODE                                      = 1;
+const ATTRIBUTE_NODE                 = 2;
+const TEXT_NODE                      = 3;
+const CDATA_SECTION_NODE             = 4;
+const ENTITY_REFERENCE_NODE          = 5;
+const ENTITY_NODE                    = 6;
+const PROCESSING_INSTRUCTION_NODE    = 7;
+const COMMENT_NODE                   = 8;
+const DOCUMENT_NODE                  = 9;
+const DOCUMENT_TYPE_NODE             = 10;
+const DOCUMENT_FRAGMENT_NODE         = 11;
+const NOTATION_NODE                  = 12;
+const XATTR_RE = /^x-attr-name-(.*)$/;
 
-function html2xml(options) {
-    withStylesheets(function() {
-        var xml = options.xml;
-        var parser = new DOMParser();
-        var serializer = new XMLSerializer();
-        var doc = parser.parseFromString(xml, 'text/xml');
-        var error = $('parsererror', doc.documentElement);
+const ELEM_START = 1;
+const ELEM_END = 2;
 
-        if (error.length == 0) {
-            doc = html2xmlStylesheet.transformToDocument(doc);
-            error = $('parsererror', doc.documentElement);
-        }
-        
-        if (error.length > 0 && options.error) {
-            options.error(error.text());
-        } else {
-            if (options.inner) {
-                var result = [];
-                for (var i = 0; i < doc.documentElement.childNodes.length; i++) {
-                    result.push(serialize(doc.documentElement.childNodes[i]).join(''));
-                };
-                options.success(result.join(''));
-            } else {
-                options.success(serialize(doc.documentElement).join(''));
-            }
-        }
-    }, function() { options.error && options.error('Nie udało się załadować XSLT'); });
+const NAMESPACES = {
+       undefined: "",
+       null: "",       
+       "": "",
+       "http://www.w3.org/1999/02/22-rdf-syntax-ns#": "rdf:",
+       "http://purl.org/dc/elements/1.1/": "dc:",
+       "http://www.w3.org/XML/1998/namespace": "xml:"
 };
 
+function html2text(rootElement) {
+       var stack = [];
+       var result = "";
+       
+       stack.push([ELEM_START, rootElement]);  
+       console.log("SERIALIZING")
+       
+       while( stack.length > 0) {
+               var pair = stack.pop();
+               
+               var event = pair[0];
+               var node = pair[1];
+               
+               // console.log("NODE", event, node);
+               
+               if(event == ELEM_END) {
+                       result += "</" + node + ">\n";
+                       continue;
+               };
+               
+               switch(node.nodeType) {
+                       case ELEMENT_NODE:
+                               if(!node.hasAttribute('x-node'))
+                                       break;
+                                       
+                               var tag_name = NAMESPACES[node.getAttribute('x-ns')] + node.getAttribute('x-node');
+                               // console.log("ELEMENT: ", tag_name);
+                               
+                               /* retrieve attributes */
+                               var attr_ids = [];
+                               for(var i=0; i < node.attributes.length; i++) {
+                                       var attr = node.attributes.item(i);
+                                       
+                                       // check if name starts with "x-attr-name"
+                                       var m = attr.name.match(XATTR_RE);
+                                       if(m !== null) 
+                                               attr_ids.push(m[1]);                                            
+                                       
+                               };
+                               
+                               result += '<' + tag_name;
+                               
+                               $.each(attr_ids, function() {                                                                           
+                                       result += ' ' + NAMESPACES[node.getAttribute('x-attr-ns-'+this)];
+                                       result += node.getAttribute('x-attr-name-'+this);
+                                       result += '="'+node.getAttribute('x-attr-value-'+this) +'"';
+                               });                                                             
+                               result += '>'
+                               
+                               stack.push([ELEM_END, tag_name]);
+                               for(var i = node.childNodes.length-1; i >= 0; i--)
+                                       stack.push([ELEM_START, node.childNodes.item(i)]);                              
+                               
+                               break;                  
+                       case TEXT_NODE:
+                               result += node.nodeValue;
+                               break;
+               }               
+       }
+       
+       return result;
+}
+
+function html2xml(options) {
+       try {
+               return options.success(html2text(options.htmlElement));
+       } catch(e) {
+               options.error("Nie udało się zserializować tekstu:" + e)
+       }    
+};
\ No newline at end of file