src/JsRender/NodeToVala.vala
[app.Builder.js] / src / JsRender / NodeToVala.vala
1 /**
2  * 
3  * Code to convert node tree to Javascript...
4  * 
5  * usage : x = (new JsRender.NodeToJs(node)).munge();
6  * 
7  * 
8  * 
9  * 
10  * 
11 */
12
13
14
15
16 public class JsRender.NodeToVala : Object {
17
18         Node node;
19
20         int depth;
21         string inpad;
22         string pad;
23         string ipad;
24         string cls;
25         string xcls;
26         
27         string ret;
28         
29         int cur_line;
30
31         Gee.ArrayList<string> ignoreList;
32         Gee.ArrayList<string> ignoreWrappedList; 
33         Gee.ArrayList<string> myvars;
34         Gee.ArrayList<Node> vitems; // top level items
35         NodeToVala top;
36         JsRender file;
37         
38         /* 
39          * ctor - just initializes things
40          * - wraps a render node 
41          */
42         public NodeToVala( Node node,  int depth, NodeToVala? parent) 
43         {
44
45                 
46                 this.node = node;
47                 this.depth = depth;
48                 this.inpad = string.nfill(depth > 0 ? 4 : 0, ' ');
49                 this.pad = this.inpad + "    ";
50                 this.ipad = this.inpad + "        ";
51                 this.cls = node.xvala_cls;
52                 this.xcls = node.xvala_xcls;
53                 this.ret = "";
54                 this.cur_line = parent == null ? 0 : parent.cur_line;
55                 
56                 
57                 this.top = parent == null ? this : parent.top;
58                 this.ignoreList = new Gee.ArrayList<string>();
59                 this.ignoreWrappedList  = new Gee.ArrayList<string>();
60                 this.myvars = new Gee.ArrayList<string>();
61                 this.vitems = new Gee.ArrayList<Node>();
62                 this.file = null;
63                 
64                 // initialize line data..
65                 node.line = this.cur_line;
66                 node.proplines = new Gee.HashMap<string,int>();
67                 node.listenlines = Gee.HashMap<string,int>();
68                 
69                 
70                 
71         }
72
73         public int vcnt = 0;
74         string toValaNS(Node item)
75         {
76                 var ns = item.get("xns") ;
77                 if (ns == "GtkSource") {
78                         return "Gtk.Source";
79                 }
80                 return ns + ".";
81         }
82         public void  toValaName(Node item, int depth =0) 
83         {
84                 this.vcnt++;
85
86                 var ns =  this.toValaNS(item) ;
87                 var cls = ns + item.get("xtype");
88                 
89                 
90                 item.xvala_cls = cls;
91                 
92                 
93                 string id = item.get("id").length > 0 ?
94                         item.get("id") :  "%s%d".printf(item.get("xtype"), this.vcnt);
95
96                 
97                 
98                 
99                 if (id[0] == '*' || id[0] == '+') {
100                         item.xvala_xcls = "Xcls_" + id.substring(1);
101                 } else {
102                         item.xvala_xcls = "Xcls_" + id;
103                 }
104                         
105                 
106                 item.xvala_id =  id;
107                 if (depth > 0) {                        
108                         this.vitems.add(item);
109                 } else if (!item.props.has_key("id")) {
110                         // use the file name..
111                         item.xvala_xcls =  this.file.name;
112                         // is id used?
113                         item.xvala_id = this.file.name;
114
115                 }
116                 // loop children..
117                                                                                                                            
118                 if (item.items.size < 1) {
119                         return;
120                 }
121                 for(var i =0;i<item.items.size;i++) {
122                         this.toValaName(item.items.get(i), depth+1);
123                 }
124                                           
125         }
126         /**
127          *  Main entry point to convert a file into a string..
128          */
129         public static string mungeFile(JsRender file) 
130         {
131                 if (file.tree == null) {
132                         return "";
133                 }
134
135                 var n = new NodeToVala(file.tree, 0, null);
136                 n.file = file;
137                 n.vcnt = 0;
138                 
139                 n.toValaName(file.tree);
140                 
141                 
142                 GLib.debug("top cls %s / xlcs %s\n ",file.tree.xvala_cls,file.tree.xvala_cls); 
143                 n.cls = file.tree.xvala_cls;
144                 n.xcls = file.tree.xvala_xcls;
145                 return n.munge();
146                 
147
148         }
149         
150         public string munge ( )
151         {
152                 //return this.mungeToString(this.node);
153
154                 this.ignore("pack");
155                 this.ignore("init");
156                 this.ignore("xns");
157                 this.ignore("xtype");
158                 this.ignore("id");
159                 
160                 this.globalVars();
161                 this.classHeader();
162                 this.addSingleton();
163                 this.addTopProperties();
164                 this.addMyVars();
165                 this.addPlusProperties();
166                 this.addValaCtor();
167                 this.addUnderThis();
168                 this.addWrappedCtor();
169
170                 this.addInitMyVars();
171                 this.addWrappedProperties();
172                 this.addChildren();
173                 this.addInit();
174                 this.addListeners();
175                 this.addEndCtor();
176                 this.addUserMethods();
177                 this.iterChildren();
178                 
179                 return this.ret;
180                  
181                          
182         } 
183         public string mungeChild(  Node cnode)
184         {
185                 var x = new  NodeToVala(cnode,  this.depth+1, this);
186                 return x.munge();
187         }
188         public void addLine(string str= "")
189         {
190                 this.cur_line++;
191                 this.ret += str + "\n";
192         }
193         
194         
195         public void globalVars()
196         {
197                 if (this.depth > 0) {
198                         return;
199                 }
200                 // Global Vars..
201                 //this.ret += this.inpad + "public static " + this.xcls + "  " + this.node.xvala_id+ ";\n\n";
202
203                 this.addLine("%sstatic %s _%s;".printf(this.inpad, this.xcls, this.node.xvala_id));
204                 this.addLine();
205                 //this.ret += this.inpad + "static " + this.xcls + "  _" + this.node.xvala_id+ ";\n\n";
206                                 
207                                 
208         }
209
210         void classHeader()
211         {
212                            
213                 // class header..
214                 // class xxx {   WrappedGtk  el; }
215                 this.node.line = this.cur_line;
216                 this.addLine(inpad + "public class " + this.xcls + " : Object \n" + this.inpad + "{");
217                 
218                  
219                 this.addLine(this.pad + "public " + this.cls + " el;");
220  
221                 this.addLine(this.pad + "private " + this.top.xcls + "  _this;)";
222                 this.addLine();
223                         
224                         
225                         
226                         // singleton
227         }
228         void addSingleton() 
229         {
230                 if (depth > 0) {
231                         return;
232                 }
233                 this.addLine(pad + "public static " + xcls + " singleton()");
234                 this.addLine(this.pad + "{")
235                 this.addLine(this.ipad +    "if (_" + this.node.xvala_id  + " == null) {");
236                 this.addLine(this.ipad +    "    _" + this.node.xvala_id + "= new "+ this.xcls + "();");  // what about args?
237                 this.addLine(this.ipad +    "}");
238                 this.addLine(this.ipad +    "return _" + this.node.xvala_id +";");
239                 this.addLine(this.pad + "}");
240         }
241                         
242         /**
243          * when ID is used... on an element, it registeres a property on the top level...
244          * so that _this.ID always works..
245          * 
246          */
247         void addTopProperties()
248         {
249                 if (this.depth > 0) {
250                         return;
251                 }
252                 // properties - global..??
253
254                 var iter = this.vitems.list_iterator();
255                 while(iter.next()) {
256                         var n = iter.get();
257
258                          
259                         if (!n.props.has_key("id") || n.xvala_id.length < 0) {
260                                 continue;
261                                 
262                         }
263                         if (n.xvala_id[0] == '*') {
264                                 continue;
265                         }
266                         if (n.xvala_id[0] == '+') {
267                                 continue;
268                         }
269                         this.addLine(this.pad + "public " + n.xvala_xcls + " " + n.xvala_id + ";");
270                         
271                 }
272                                 
273         }
274         /**
275          * create properties that are not 'part of the wrapped element.
276          * 
277          * 
278          */
279         
280         void addMyVars()
281         {
282                 this.addLine();
283                 this.addLine(this.ipad + "// my vars (def)");
284                         
285
286  
287                 var cls = Palete.Gir.factoryFqn(this.node.fqn());
288                    
289                 if (cls == null) {
290                         return;
291                 }
292           
293                 
294                         // Key = TYPE:name
295                 var iter = this.node.props.map_iterator();
296                 while (iter.next()) {
297                         var k = iter.get_key();
298                         if (this.shouldIgnore(k)) {
299                                 continue;
300                         }
301                         var vv = k.strip().split(" ");
302                         // user defined method
303                         if (vv[0] == "|") {
304                                 continue;
305                         }
306                         if (vv[0] == "*") {
307                                 continue;
308                         }
309                                 
310                         if (vv[0] == "@") {
311                                 this.node.proplines.set(k, this.cur_line);
312                                 this.addLine(this.pad + "public signal" + k.substring(1)  + " "  + iter.get_value() + ";");
313                                 
314                                 this.ignore(k);
315                                 continue;
316                         }
317                         var min = (vv[0] == "$" || vv[0] == "#") ? 3 : 2; 
318                         if (vv.length < min) {
319                                 // skip 'old js style properties without a type'
320                                 continue;
321                         }
322                         
323                         var kname = vv[vv.length-1];
324
325                         if (this.shouldIgnore(kname)) {
326                                 continue;
327                         }
328                         
329                         // is it a class property...
330                         if (cls.props.has_key(kname) && vv[0] != "#") {
331                                 continue;
332                         }
333                         
334                         this.myvars.add(k);
335
336                         this.node.proplines.set(k, this.cur_line);
337                         this.addLine(this.pad + "public " + 
338                                 (k[0] == '$' || k[0] == '#' ? k.substring(2) : k ) + ";");
339                                 
340                         this.ignore(k);
341                         
342                                 
343                 }
344         }
345         
346                         // if id of child is '+' then it's a property of this..
347         void addPlusProperties()
348         {
349                 if (this.node.items.size < 1) {
350                         return;
351                 }
352                 var iter = this.node.items.list_iterator();
353                 while (iter.next()) {
354                 var ci = iter.get();
355                                 
356                         if (ci.xvala_id[0] != '+') {
357                                 continue; // skip generation of children?
358                                 
359                         }
360                         this.node.proplines.set(k, this.cur_line);
361                         this.addLine(this.pad + "public " + ci.xvala_xcls + " " + ci.xvala_id.substring(1) + ";");
362                                            
363                         
364                 }
365         }
366         /**
367          * add the constructor..
368          */
369         void addValaCtor()
370         {
371                         
372                         
373                         // .vala props.. 
374                         
375                         string[] cargs = {};
376                         var cargs_str = "";
377                         // ctor..
378                         this.ret += "\n" + this.pad + "// ctor \n";
379                         if (this.node.has("* args")) {
380                                 // not sure what this is supposed to be ding..
381                         
382                                 cargs_str = ", " + this.node.get("* args");
383                                 //var ar = this.node.get("* args");.split(",");
384                                 //for (var ari =0; ari < ar.length; ari++) {
385                                         //      cargs +=  (ar[ari].trim().split(" ").pop();
386                                           // }
387                                 }
388                 
389                         if (this.depth < 1) {
390                                 this.ret += this.pad + "public " + this.xcls + "(" + 
391                                         cargs_str +")\n" + this.pad + "{\n";
392                         } else {
393                                         
394                                                 //code 
395                                         
396                                 this.ret+= this.pad + "public " + this.xcls + "(" + 
397                                         this.top.xcls + " _owner " + cargs_str + ")\n" + this.pad + "{\n";
398                         }
399                         
400
401         }
402         void addUnderThis() 
403         {
404                         // public static?
405                         if (depth < 1) {
406                         this.ret += this.ipad + "_this = this;\n";
407                         return;
408                 }
409                 this.ret+= this.ipad + "_this = _owner;\n";
410
411                 if (this.node.props.has_key("id")
412                         &&
413                         this.node.xvala_id != "" 
414                         && 
415                         this.node.xvala_id[0] != '*' 
416                         && 
417                         this.node.xvala_id[0] != '+' 
418                         ) {
419                                 this.ret+= this.ipad + "_this." + node.xvala_id  + " = this;\n";
420                    
421                 }
422                                 
423                                 
424    
425         }
426
427         void addWrappedCtor()
428         {
429                 // wrapped ctor..
430                 // this may need to look up properties to fill in the arguments..
431                 // introspection does not workk..... - as things like gtkmessagedialog
432                 /*
433                 if (cls == 'Gtk.Table') {
434
435                 var methods = this.palete.getPropertiesFor(cls, 'methods');
436
437                 print(JSON.stringify(this.palete.proplist[cls], null,4));
438                 Seed.quit();
439                 }
440                 */
441                 if (this.node.has("* ctor")) {
442                         
443                         
444                                 this.ret +=  this.ipad + "this.el = " + this.node.get("* ctor")+ ";\n";
445                         return;
446                 }
447                 // the ctor arguments...
448
449                 // see what the 
450                 //var default_ctor = Palete.Gir.factoryFqn(this.node.fqn() + ".newv");
451                 //if (default_ctor == null) {
452                         var  default_ctor = Palete.Gir.factoryFqn(this.node.fqn() + ".new");
453
454                 //}
455                 if (default_ctor != null && default_ctor.paramset != null && default_ctor.paramset.params.size > 0) {
456                         string[] args  = {};
457                         var iter =default_ctor.paramset.params.list_iterator();
458                         while (iter.next()) {
459                                 var n = iter.get().name;
460                                 if (!this.node.has(n)) {
461
462                                         if (iter.get().type.contains("int")) {
463                                                 args += "0";
464                                                 continue;
465                                         }
466                                         if (iter.get().type.contains("float")) {
467                                                 args += "0f";
468                                                 continue;
469                                         }
470                                         if (iter.get().type.contains("bool")) {
471                                                 args += "true"; // always default to true?
472                                                 continue;
473                                         }
474                                         // any other types???
475                                         
476                                         args += "null";
477                                         continue;
478                                 }
479                                 this.ignoreWrapped(n);
480                                 this.ignore(n);
481                                 
482                                 var v = this.node.get(n);
483
484                                 if (iter.get().type == "string") {
485                                         v = "\"" +  v.escape("") + "\"";
486                                 }
487                                 if (v == "TRUE" || v == "FALSE") {
488                                         v = v.down();
489                                 }
490
491                                 
492                                 args += v;
493
494                         }
495                         this.ret += this.ipad + "this.el = new " + cls + "( "+ string.joinv(", ",args) + " );\n" ;
496                         return;
497                         
498                 }
499                 
500                 
501                                 this.ret += this.ipad + "this.el = new " + this.cls + "();\n";
502
503                         
504         }
505
506         void addInitMyVars()
507         {
508                         //var meths = this.palete.getPropertiesFor(item['|xns'] + '.' + item.xtype, 'methods');
509                         //print(JSON.stringify(meths,null,4));Seed.quit();
510                         
511                         
512                         
513                         // initialize.. my vars..
514                 this.ret += "\n" + this.ipad + "// my vars (dec)\n";
515                 
516                 var iter = this.myvars.list_iterator();
517                 while(iter.next()) {
518                         
519                                 var k = iter.get();
520                         
521                                 var ar  = k.strip().split(" ");
522                         var kname = ar[ar.length-1];
523                         
524                                 var v = this.node.props.get(k);
525                         // ignore signals.. 
526                                 if (v.length < 1) {
527                                                 continue; 
528                                 }
529                         if (v == "FALSE" || v == "TRUE") {
530                                 v = v.down();
531                         }
532 //FIXME -- check for raw string.. "string XXXX"
533                         
534                         // if it's a string...
535                         
536                                 this.ret += this.ipad + "this." + kname + " = " +   v +";\n";
537                         }
538         }
539
540         
541
542
543         
544         void addWrappedProperties()
545         {
546                 var cls = Palete.Gir.factoryFqn(this.node.fqn());
547                 if (cls == null) {
548                         return;
549                 }
550                         // what are the properties of this class???
551                 this.ret += "\n" + this.ipad + "// set gobject values\n";
552
553                 var iter = cls.props.map_iterator();
554                 while (iter.next()) {
555                         var p = iter.get_key();
556                         print("Check Write %s\n", p);
557                         if (!this.node.has(p)) {
558                                 continue;
559                         }
560                         if (this.shouldIgnoreWrapped(p)) {
561                                 continue;
562                         }
563                         
564                                 this.ignore(p);
565                         var v = this.node.get(p);
566
567                         var nodekey = this.node.get_key(p);
568
569                         // user defined properties.
570                         if (nodekey[0] == '#') {
571                                 continue;
572                         }
573                                 
574
575                         
576                         var is_raw = nodekey[0] == '$';
577                         
578                         // what's the type.. - if it's a string.. then we quote it..
579                         if (iter.get_value().type == "string" && !is_raw) {
580                                  v = "\"" +  v.escape("") + "\"";
581                         }
582                         if (v == "TRUE" || v == "FALSE") {
583                                 v = v.down();
584                         }
585                         if (iter.get_value().type == "float" && v[v.length-1] != 'f') {
586                                 v += "f";
587                         }
588                         
589                         
590                         this.ret += "%sthis.el.%s = %s;\n".printf(ipad,p,v); // // %s,  iter.get_value().type);
591                                         
592                            // got a property..
593                            
594
595                 }
596                 
597         }
598
599         void addChildren()
600         {
601                                 //code
602                 if (this.node.items.size < 1) {
603                         return;
604                 }
605                          
606                         var iter = this.node.items.list_iterator();
607                 var i = -1;
608                 while (iter.next()) {
609                         i++;
610                                 
611                                         var ci = iter.get();
612
613                         if (ci.xvala_id[0] == '*') {
614                                                 continue; // skip generation of children?
615                                         }
616                                         
617                                         var xargs = "";
618                                         if (ci.has("* args")) {
619                                                 
620                                                 var ar = ci.get("* args").split(",");
621                                                 for (var ari = 0 ; ari < ar.length; ari++ ) {
622                                         var arg = ar[ari].split(" ");
623                                                                 xargs += "," + arg[arg.length -1];
624                                                 }
625                                         }
626                                         
627                                         this.ret += this.ipad + "var child_" + "%d".printf(i) + " = new " + ci.xvala_xcls +
628                                         "( _this " + xargs + ");\n" ;
629                                         
630                                         this.ret+= this.ipad + "child_" + "%d".printf(i) +".ref();\n"; // we need to reference increase unnamed children...
631                                         
632                                         if (ci.has("* prop")) {
633                                                 this.ret+= ipad + "this.el." + ci.get("* prop") + " = child_" + "%d".printf(i) + ".el;\n";
634                                                 continue;
635                                         }
636
637                         // not sure why we have 'true' in pack?!?
638                                         if (!ci.has("pack") || ci.get("pack").down() == "false" || ci.get("pack").down() == "true") {
639                                                 continue;
640                                         }
641                                         
642                                         string[]  packing =  { "add" };
643                         if (ci.has("pack")) {
644                                 packing = ci.get("pack").split(",");
645                         }
646                                         
647                                         var pack = packing[0];
648                         this.ret += this.ipad + "this.el." + pack.strip() + " (  child_" + "%d".printf(i) + ".el " +
649                                                            (packing.length > 1 ? 
650                                                                 (", " + string.joinv(",", packing).substring(pack.length+1))
651                                                         :
652                                                                         ""
653                                                                 ) + " );\n";
654                         
655                                                           
656                                         if (ci.xvala_id[0] != '+') {
657                                                 continue; // skip generation of children?
658                                                                 
659                                         }
660                                         this.ret+= this.ipad + "this." + ci.xvala_id.substring(1) + " =  child_" + "%d".printf(i) +  ";\n";
661                                                   
662                 }
663         }
664
665         void addInit()
666         {
667
668                 
669                 if (!this.node.has("init")) {
670                                 return;
671                 }
672                 this.ret+= "\n" + ipad + "// init method \n";
673         
674                 this.ret+= "\n" + ipad + this.padMultiline(ipad, this.node.get("init")) + "\n";
675
676          }
677          void addListeners()
678          {
679                 if (this.node.listeners.size < 1) {
680                         return;
681                 }
682                                 
683                         
684                         
685                 this.ret+= "\n" + ipad + "// listeners \n";
686
687                 var iter = this.node.listeners.map_iterator();
688                 while (iter.next()) {
689                         var k = iter.get_key();
690                         var v = iter.get_value();
691                                         this.ret+= this.ipad + "this.el." + k + ".connect( " + 
692                                         this.padMultiline(this.ipad,v) +");\n"; 
693                                         
694                                 }
695         }    
696                 void addEndCtor()
697         {
698                         
699                         
700                         
701                         // end ctor..
702                         this.ret+= this.pad + "}\n";
703         }
704
705
706         /*
707  * Standardize this crap...
708  * 
709  * standard properties (use to set)
710  *          If they are long values show the dialog..
711  *
712  * someprop : ....
713  * bool is_xxx  :: can show a pulldown.. (true/false)
714  * string html  
715  * $ string html  = string with value interpolated eg. baseURL + ".." 
716  *  Clutter.ActorAlign x_align  (typed)  -- shows pulldowns if type is ENUM? 
717  * $ untypedvalue = javascript untyped value...  
718  * _ string html ... = translatable..
719
720  * 
721  * object properties (not part of the GOjbect being wrapped?
722  * # Gee.ArrayList<Xcls_fileitem> fileitems
723  * 
724  * signals
725  * @ void open 
726  * 
727  * methods -- always text editor..
728  * | void clearFiles
729  * | someJSmethod
730  * 
731  * specials
732  * * prop -- string
733  * * args  -- string
734  * * ctor -- string
735  * * init -- big string?
736  * 
737  * event handlers (listeners)
738  *   just shown 
739  * 
740  * -----------------
741  * special ID values
742  *  +XXXX -- indicates it's a instance property / not glob...
743  *  *XXXX -- skip writing glob property (used as classes that can be created...)
744  * 
745  * 
746  */
747          
748         void addUserMethods()
749         {
750                         
751                 this.ret+= "\n" + pad + "// user defined functions \n";  
752                         
753                         // user defined functions...
754                 var iter = this.node.props.map_iterator();
755                 while(iter.next()) {
756                                 var k = iter.get_key();
757                         if (this.shouldIgnore(k)) {
758                                 continue;
759                         }
760                         // HOW TO DETERIME if its a method?            
761                                 if (k[0] != '|') {
762                                                 //strbuilder("\n" + pad + "// skip " + k + " - not pipe \n"); 
763                                                 continue;
764                         }       
765                                 // function in the format of {type} (args) { .... }
766                                 var kk = k.substring(2);
767                                 var vv = iter.get_value();
768                                 this.ret += this.pad + "public " + kk + " " + this.padMultiline(this.pad, vv) + "\n";
769                         
770                                 
771                         }
772         }
773
774         void iterChildren()
775         {
776                         
777                         if (this.depth > 0) {
778                         this.ret+= this.inpad + "}\n";
779                         }
780                 
781                 var iter = this.node.items.list_iterator();
782                 var i = -1;
783                 while (iter.next()) {
784                                 this.ret += this.mungeChild(iter.get());
785                 }
786                          
787                         if (this.depth < 1) {
788                                 this.ret+= this.inpad + "}\n";
789                         }
790                         
791                 }
792
793         string padMultiline(string pad, string str)
794         {
795                 var ar = str.strip().split("\n");
796                 return string.joinv("\n" + pad , ar);
797         }
798         
799         void ignore(string i) {
800                 this.ignoreList.add(i);
801                 
802         }
803         void ignoreWrapped(string i) {
804                 this.ignoreWrappedList.add(i);
805                 
806         }
807         bool shouldIgnore(string i)
808         {
809                 return ignoreList.contains(i);
810         }
811         bool shouldIgnoreWrapped(string i)
812         {
813                 return ignoreWrappedList.contains(i);
814         }
815         
816 }
817         
818          
819         
820         
821
822