Removed faulty debug

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

diff --git a/platforma/static/js/xslt.js b/platforma/static/js/xslt.js
index f164c5b..f5af909 100644 (file)
--- a/platforma/static/js/xslt.js
+++ b/platforma/static/js/xslt.js
@@ -1,4 +1,97 @@
-var MARGIN = {
+/*
+ * 
+ * XSLT STUFF
+ * 
+ */
+function createXSLT(xsl) {
+    var p = new XSLTProcessor();
+    p.importStylesheet(xsl);
+    return p;
+}
+
+var xml2htmlStylesheet = null;
+
+// Wykonuje block z załadowanymi arkuszami stylów
+function withStylesheets(code_block, onError) 
+{      
+    if (!xml2htmlStylesheet) {
+       $.blockUI({message: 'Ładowanie arkuszy stylów...'});
+       $.ajax({
+               url: STATIC_URL + 'xsl/wl2html_client.xsl',
+               dataType: 'xml',
+               success: function(data) {
+               xml2htmlStylesheet = createXSLT(data);
+                $.unblockUI();
+                               code_block();
+                 
+            },
+                       error: onError
+        })
+    }
+       else {
+               code_block();
+       }
+}
+
+
+function xml2html(options) {
+    withStylesheets(function() {
+        var xml = options.xml.replace(/\/\s+/g, '<br />');                             
+        var parser = new DOMParser();
+        var serializer = new XMLSerializer();
+        var doc = parser.parseFromString(xml, 'text/xml');             
+        var error = $('parsererror', doc);
+        
+        if (error.length == 0) {
+            doc = xml2htmlStylesheet.transformToFragment(doc, document);
+                       console.log(doc.firstChild);
+                       
+                       if(doc.firstChild === null) {
+                               options.error("Błąd w przetwarzaniu XML.");
+                               return;
+                       }
+                               
+            error = $('parsererror', doc);
+        }
+        
+        if (error.length > 0 && options.error) {
+            options.error(error.text());
+        } else {                       
+            options.success(doc.firstChild);
+        }
+    }, function() { options.error && options.error('Nie udało się załadować XSLT'); });
+}
+
+/* USEFULL CONSTANTS */
+const ELEMENT_NODE                                      = 1;
+const ATTRIBUTE_NODE                 = 2;
+const TEXT_NODE                      = 3;
+const CDATA_SECTION_NODE             = 4;
+const ENTITY_REFERENCE_NODE          = 5;
+const ENTITY_NODE                    = 6;
+const PROCESSING_INSTRUCTION_NODE    = 7;
+const COMMENT_NODE                   = 8;
+const DOCUMENT_NODE                  = 9;
+const DOCUMENT_TYPE_NODE             = 10;
+const DOCUMENT_FRAGMENT_NODE         = 11;
+const NOTATION_NODE                  = 12;
+const XATTR_RE = /^x-attr-name-(.*)$/;
+
+const ELEM_START = 1;
+const ELEM_END = 2;
+const NS_END = 3;
+
+const NAMESPACES = {
+       // namespaces not listed here will be assigned random names
+       "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"
+};
+
+/*
+ * PADDING for pretty-printing
+ */
+const PADDING = {

     dramat_wierszowany_l: 4,
     dramat_wierszowany_lp: 4,
     dramat_wspolczesny: 4,
     dramat_wierszowany_l: 4,
     dramat_wierszowany_lp: 4,
     dramat_wspolczesny: 4,


@@ -23,200 +116,258 @@ var MARGIN = {
     autor_utworu: 2,
     nazwa_utworu: 2,
     dzielo_nadrzedne: 2,
     autor_utworu: 2,
     nazwa_utworu: 2,
     dzielo_nadrzedne: 2,

+       

     didaskalia: 2,
     motto_podpis: 2,
     naglowek_listy: 2,
     didaskalia: 2,
     motto_podpis: 2,
     naglowek_listy: 2,

-    

     kwestia: 1,
     kwestia: 1,

-    lista_osoba: 1
-}
+    lista_osoba: 1,
+       
+       "podpis": 1,    
+       "wers": 0,
+       "wers_cd": 0,
+       "wers_akap": 0,
+       "wers_wciety": 0,       
+       
+       "rdf:RDF": 3,
+       "rdf:Description": 1,   
+};

 
 

-MARGIN['rdf:RDF'] = 3;
-MARGIN['rdf:Description'] = 2;
+function getPadding(name) {
+       
+       if(name.match(/^dc:.*$/))
+               return -1;
+       
+       if(PADDING[name])
+               return PADDING[name];
+               
+       return 0;
+}

 
 

-function elementType(element) {
-    if ($.inArray(element.tagName, ['akap', 'akap_cd', 'akap_dialog', 'strofa', 'didaskalia', 'wers', 'wers_cd', 'wers_akap', 'wers_wciety', 'autor_utworu', 'nazwa_utworu', 'dzielo_nadrzedne', 'podpis'])) {
-        return 'inline';
-    } else {
-        return 'block';
-    }
+function HTMLSerializer() {    
+       // empty constructor

 }
 
 }
 

-// Serializuje XML, wstawiając odpowiednie ilości białych znaków między elementami
-function serialize(element, mode) {
-    if (!mode) {
-        mode = 'block';
-    }
-    
-    if (element.nodeType == 3) { // tekst
-        if (mode == 'block') {
-            return [$.trim(element.nodeValue)];
-        } else {
-            return [element.nodeValue];
-        }
-    } else if (element.nodeType != 1) { // pomijamy węzły nie będące elementami XML ani tekstem
-        return [];
-    }
-    
-    var result = [];
-    var hasContent = false;
-    
-    if (MARGIN[element.tagName]) {
-        for (var i=0; i < MARGIN[element.tagName]; i++) {
-            result.push('\n');
-        };
-    } else if (element.tagName.indexOf('dc:') != -1) {
-        result.push('\n');
-    }
-    
-    result.push('<');
-    result.push(element.tagName);
-    
-    // Mozilla nie uważa deklaracji namespace za atrybuty
-    var ns = element.tagName.indexOf(':');
-    if (ns != -1 && $.browser.mozilla) {
-        result.push(' xmlns:');
-        result.push(element.tagName.substring(0, ns));
-        result.push('="');
-        result.push(element.namespaceURI);
-        result.push('"');
-    }
-    
-    if (element.attributes) {
-        for (var i=0; i < element.attributes.length; i++) {
-            var attr = element.attributes[i];
-            result.push(' ');
-            result.push(attr.name);
-            result.push('="');
-            result.push(attr.value);
-            result.push('"');
-            hasContent = true;
-        }
-    }
-    
-    if (element.childNodes.length == 0) {
-        result.push(' />');
-    } else {
-        result.push('>');
-
-        for (var i=0; i < element.childNodes.length; i++) {
-            result = result.concat(serialize(element.childNodes[i], 
-                mode == 'inline' ? 'inline' : elementType(element.childNodes[i])));
-        }

 
 

-        result.push('</');
-        result.push(element.tagName);
-        result.push('>');
-    }
-    
-    return result;
-};

 
 

+HTMLSerializer.prototype._prepare = function() {
+       this.stack = [];
+       
+       // XML namespace is implicit
+       this.nsMap = {"http://www.w3.org/XML/1998/namespace": "xml"};
+               
+       this.result = "";
+       this.nsCounter = 1;     
+}

 
 

-function createXSLT(xsl) {
-    var p = new XSLTProcessor();
-    p.importStylesheet(xsl);
-    return p;
+HTMLSerializer.prototype._pushElement = function(element) {
+       this.stack.push({
+               "type": ELEM_START,
+               "node": element
+       });     

 }
 
 }
 

+HTMLSerializer.prototype._pushChildren = function(element) {
+       for(var i = element.childNodes.length-1; i >= 0; i--)
+               this._pushElement(element.childNodes.item(i));                                  
+}

 
 

-var xml2htmlStylesheet = null;
-var html2xmlStylesheet = null;
+HTMLSerializer.prototype._pushTagEnd = function(tagName) {
+       this.stack.push({
+               "type": ELEM_END,
+               "tagName": tagName
+       });     
+}

 
 

+HTMLSerializer.prototype._verseBefore = function(node) {
+       var prev = node.previousSibling;
+       
+       while((prev !== null) && (prev.nodeType != ELEMENT_NODE)) {
+               prev = prev.previousSibling;
+       }       
+               
+       return (prev !== null) && prev.hasAttribute('x-verse');
+}

 
 

-// Wykonuje block z załadowanymi arkuszami stylów
-function withStylesheets(block, onError) {
-    if (xml2htmlStylesheet && html2xmlStylesheet) {
-        block();
-        return;
-    }
-    $.blockUI({message: 'Ładowanie arkuszy stylów...'});
-    $.ajax({
-        url: '/static/xsl/wl2html_client.xsl',
-        dataType: 'xml',
-        success: function(data) {
-            xml2htmlStylesheet = createXSLT(data);
-            $.ajax({
-                url: '/static/xsl/html2wl_client.xsl',
-                dataType: 'xml',
-                success: function(data) {
-                    html2xmlStylesheet = createXSLT(data);
-                    $.unblockUI();
-                    block();
-                },
-                error: onError
-            })
-        },
-        error: onError
-    })
+HTMLSerializer.prototype.serialize = function(rootElement, stripOuter) 
+{
+       var self = this;
+       self._prepare();
+       
+       if(!stripOuter)
+               self._pushElement(rootElement);
+       else    
+               self._pushChildren(rootElement);
+       
+       while(self.stack.length > 0) {
+               var token = self.stack.pop();
+                                               
+               if(token.type === ELEM_END) {
+                       self.result += "</" + token.tagName + ">";                                      
+                       for(var padding = getPadding(token.tagName); padding > 0; padding--) {                  
+                               self.result += "\n";                    
+                       }
+                       continue;
+               };
+               
+               if(token.type === NS_END) {
+                       self._unassignNamespace(token.namespace);
+                       continue;
+               } 
+               
+               
+               switch(token.node.nodeType) {
+                       case ELEMENT_NODE:
+                               if(token.node.hasAttribute('x-pass-thru')) {
+                                       self._pushChildren(token.node);
+                                       break;
+                               }
+                               
+                               if(!token.node.hasAttribute('x-node'))
+                                       break;
+                                       
+                               var xnode = token.node.getAttribute('x-node');
+                               
+                               if(xnode === 'wers') {
+                                       /* push children */
+                                       if(self._verseBefore(token.node))
+                                               self.result += '/\n';
+                                       self._pushChildren(token.node);
+                                       break;                                  
+                               };                                      
+                               
+                               if(token.node.hasAttribute('x-verse') && self._verseBefore(token.node)) {
+                                       self.result += '/\n';                                   
+                               };
+                                       
+                               self._serializeElement(token.node);
+                               break;
+                       case TEXT_NODE:
+                               self.result += token.node.nodeValue;
+                               break;
+               };
+       };
+       
+       return this.result;

 }
 
 }
 

-function transform(editor) {
-    $.blockUI({message: 'Ładowanie...'});
-    withStylesheets(function() {
-        setTimeout(function() {
-            var doc = null;
-            var parser = new DOMParser();
-            var serializer = new XMLSerializer();
-
-            doc = editor.getCode().replace(/\/\s+/g, '<br />');
-            doc = parser.parseFromString(doc, 'text/xml');
-            var error = $('parsererror', doc);
-            console.log(error);
-            if (error.length == 0) {
-                doc = xml2htmlStylesheet.transformToFragment(doc, document);
-                error = $('parsererror', doc);
-            }
-            console.log('xml', doc);
-            if (error.length > 0) {
-                console.log(error);
-                $('#html-view').html('<p class="error">Wystąpił błąd:</p><pre>' + error.text() + '</pre>');
-            } else {
-                console.log('after transform', doc);
-                $('#html-view').html(doc.firstChild);                          
-            }
-
-            $.unblockUI();
-        }, 200);
-    }, function() { alert('Nie udało się załadować XSLT!'); });
+/*
+ * TODO: this doesn't support prefix redefinitions
+ */
+HTMLSerializer.prototype._unassignNamespace = function(nsData) {
+       this.nsMap[nsData.uri] = undefined;
+};
+       
+HTMLSerializer.prototype._assignNamespace = function(uri) {
+       if(uri === null) {
+               // default namespace
+               return ({"prefix": "", "uri": "", "fresh": false});
+       }
+       
+       if(this.nsMap[uri] === undefined) {
+               // this prefix hasn't been defined yet in current context       
+               var prefix = NAMESPACES[uri];
+               
+               if (prefix === undefined) { // not predefined
+                       prefix = "ns" + this.nsCounter;
+                       this.nsCounter += 1;
+               }
+               
+               this.nsMap[uri] = prefix;               
+               return ({
+                       "prefix": prefix,
+                       "uri": uri,
+                       "fresh": true
+               });                     
+       }       
+               
+       return ({"prefix": this.nsMap[uri], "uri": uri, "fresh": false});               

 };
 
 };
 

+HTMLSerializer.prototype._join = function(prefix, name) {
+       if(!!prefix) 
+               return prefix + ":" + name;
+       return name;    
+};

 
 

-function reverseTransform(editor) {
-    $.blockUI({message: 'Ładowanie...'});
-    withStylesheets(function() {
-        setTimeout(function() {
-            var doc = null;
-            var parser = new DOMParser();
-            var serializer = new XMLSerializer();
-
-            if ($('#html-view .error').length > 0) {
-                $('#source-editor').unblock();
-                return;
-            }
-            
-            doc = serializer.serializeToString($('#html-view div').get(0))
-            doc = parser.parseFromString(doc, 'text/xml');
-            console.log('xml',doc, doc.documentElement);
-            // TODO: Sprawdzenie błędów
-            var error = $('parsererror', doc.documentElement);
-            console.log(error);
-            if (error.length == 0) {
-                doc = html2xmlStylesheet.transformToDocument(doc, document);
-                error = $('parsererror', doc.documentElement);
-            }
-            
-            if (error.length > 0) {
-                console.log(error);
-                $('#source-editor').html('<p>Wystąpił błąd:</p>' + error.text());
-            } else {
-                doc = serialize(doc.documentElement).join('');
-                editor.setCode(doc);                                
-            }
-            
-            console.log('after transform', doc, doc.documentElement);
-            $.unblockUI();
-        }, 200)
-    }, function() { alert('Nie udało się załadować XSLT!')});
+HTMLSerializer.prototype._rjoin = function(prefix, name) {
+       if(!!name) 
+               return prefix + ":" + name;
+       return prefix;  
+};
+                                       
+HTMLSerializer.prototype._serializeElement = function(node) {
+       var self = this;
+               
+       var ns = node.getAttribute('x-ns');
+       var nsPrefix = null;
+       var newNamespaces = [];
+       
+       var nsData = self._assignNamespace(node.getAttribute('x-ns'));
+       
+       if(nsData.fresh) {
+               newNamespaces.push(nsData);
+               self.stack.push({
+                       "type": NS_END,
+                       "namespace": nsData
+               });
+       }                                       
+       
+       var tagName = self._join(nsData.prefix, node.getAttribute('x-node'));
+                               
+       /* retrieve attributes */
+       var attributeIDs = [];
+       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) 
+                       attributeIDs.push(m[1]);                                
+       };
+                               
+       /* print out */
+       if (getPadding(tagName))
+               self.result += '\n';
+               
+       self.result += '<' + tagName;   
+                                       
+       $.each(attributeIDs, function() {
+               var nsData = self._assignNamespace(node.getAttribute('x-attr-ns-'+this));
+       
+               if(nsData.fresh) {
+                       newNamespaces.push(nsData);
+                       self.stack.push({
+                               "type": NS_END,
+                               "namespace": nsData
+                       });
+               };
+                                                                                                                       
+               self.result += ' ' + self._join(nsData.prefix, node.getAttribute('x-attr-name-'+this));
+               self.result += '="'+node.getAttribute('x-attr-value-'+this) +'"';
+       });
+       
+       /* print new namespace declarations */
+       $.each(newNamespaces, function() {
+               self.result += " " + self._rjoin("xmlns", this.prefix);
+               self.result += '="' + this.uri + '"';           
+       });                                     
+       
+       if (node.childNodes.length > 0) {
+               self.result += ">";
+               self._pushTagEnd(tagName);
+               self._pushChildren(node);
+       }
+       else {
+               self.result += "/>";
+       };

 };
 
 };
 

+function html2text(params) {   
+       try {
+               var s = new HTMLSerializer();
+               params.success( s.serialize(params.element, params.stripOuter) );
+       } catch(e) {
+               params.error("Nie udało się zserializować tekstu:" + e)
+       }       
+}
\ No newline at end of file