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 definition..
368          */
369         void addValaCtor()
370         {
371                         
372                 
373                 // .vala props.. 
374                 
375                 string[] cargs = {};
376                 var cargs_str = "";
377                 // ctor..
378                 this.addLine();
379                 this.addLine(this.pad + "// ctor");
380                 
381                 if (this.node.has("* args")) {
382                         // not sure what this is supposed to be ding..
383                 
384                         cargs_str = ", " + this.node.get("* args");
385                         //var ar = this.node.get("* args");.split(",");
386                         //for (var ari =0; ari < ar.length; ari++) {
387                                 //      cargs +=  (ar[ari].trim().split(" ").pop();
388                                   // }
389                         }
390         
391                 if (this.depth < 1) {
392                  
393                         // top level - does not pass the top level element..
394                         this.addLine(this.pad + "public " + this.xcls + "(" +  cargs_str +")")
395                         this.addLine(this.pad + "{");
396                 } else {
397                                 
398                         // for sub classes = we passs the top level as _owner
399                         this.addLine(this.pad + "public " + this.xcls + "(" +  this.top.xcls + " _owner " + cargs_str + ")");
400                         this.addLine(this.pad + "{");
401                 }
402                 
403
404         }
405         /**
406          *  make sure _this is defined..
407          */
408         void addUnderThis() 
409         {
410                         // public static?
411                 if (depth < 1) {
412                         this.addLine( this.ipad + "_this = this;");
413                         return;
414                 }
415                 // for non top level = _this point to owner, and _this.ID is set
416                 
417                 this.addLine( this.ipad + "_this = _owner;");
418
419                 if (this.node.props.has_key("id")
420                         &&
421                         this.node.xvala_id != "" 
422                         && 
423                         this.node.xvala_id[0] != '*' 
424                         && 
425                         this.node.xvala_id[0] != '+' 
426                         ) {
427                                 this.addLine( this.ipad + "_this." + node.xvala_id  + " = this;");
428                    
429                 }
430                          
431         }
432         /**
433          * Initialize this.el to point to the wrapped element.
434          * 
435          * 
436          */
437
438         void addWrappedCtor()
439         {
440                 // wrapped ctor..
441                 // this may need to look up properties to fill in the arguments..
442                 // introspection does not workk..... - as things like gtkmessagedialog
443                 /*
444                 if (cls == 'Gtk.Table') {
445
446                 var methods = this.palete.getPropertiesFor(cls, 'methods');
447
448                 print(JSON.stringify(this.palete.proplist[cls], null,4));
449                 Seed.quit();
450                 }
451                 */
452                 if (this.node.has("* ctor")) {
453                         this.node.proplines.set("* ctor", this.curline);
454                         this.addLine(this.ipad + "this.el = " + this.node.get("* ctor")+ ";");
455                         return;
456                 }
457                  
458                 var  default_ctor = Palete.Gir.factoryFqn(this.node.fqn() + ".new");
459
460                  
461                 if (default_ctor != null && default_ctor.paramset != null && default_ctor.paramset.params.size > 0) {
462                         string[] args  = {};
463                         var iter =default_ctor.paramset.params.list_iterator();
464                         while (iter.next()) {
465                                 var n = iter.get().name;
466                                 if (!this.node.has(n)) {
467
468                                         if (iter.get().type.contains("int")) {
469                                                 args += "0";
470                                                 continue;
471                                         }
472                                         if (iter.get().type.contains("float")) {
473                                                 args += "0f";
474                                                 continue;
475                                         }
476                                         if (iter.get().type.contains("bool")) {
477                                                 args += "true"; // always default to true?
478                                                 continue;
479                                         }
480                                         // any other types???
481                                         
482                                         args += "null";
483                                         continue;
484                                 }
485                                 this.ignoreWrapped(n);
486                                 this.ignore(n);
487                                 
488                                 var v = this.node.get(n);
489
490                                 if (iter.get().type == "string") {
491                                         v = "\"" +  v.escape("") + "\"";
492                                 }
493                                 if (v == "TRUE" || v == "FALSE") {
494                                         v = v.down();
495                                 }
496
497                                 
498                                 args += v;
499
500                         }
501                         this.node.proplines.set("* xtype", this.curline);
502                         this.addLine(this.ipad + "this.el = new " + cls + "( "+ string.joinv(", ",args) + " );") ;
503                         return;
504                         
505                 }
506                 this.node.proplines.set("* xtype", this.curline);
507                 
508                 this.addLine(this.ipad + "this.el = new " + this.cls + "();");
509
510                         
511         }
512
513         void addInitMyVars()
514         {
515                         //var meths = this.palete.getPropertiesFor(item['|xns'] + '.' + item.xtype, 'methods');
516                         //print(JSON.stringify(meths,null,4));Seed.quit();
517                         
518                         
519                         
520                         // initialize.. my vars..
521                 this.addLine();
522                 this.addLine( this.ipad + "// my vars (dec)");
523                 
524                 var iter = this.myvars.list_iterator();
525                 while(iter.next()) {
526                         
527                         var k = iter.get();
528                         
529                         var ar  = k.strip().split(" ");
530                         var kname = ar[ar.length-1];
531                         
532                         var v = this.node.props.get(k);
533                         // ignore signals.. 
534                         if (v.length < 1) {
535                                 continue; 
536                         }
537                         if (v == "FALSE" || v == "TRUE") {
538                                 v = v.down();
539                         }
540                         //FIXME -- check for raw string.. "string XXXX"
541                         
542                         // if it's a string...
543                         
544                         
545                         this.addLine(this.ipad + "this." + kname + " = " +   v +";");
546                 }
547         }
548
549         
550
551
552         
553         void addWrappedProperties()
554         {
555                 var cls = Palete.Gir.factoryFqn(this.node.fqn());
556                 if (cls == null) {
557                         return;
558                 }
559                         // what are the properties of this class???
560                 this.ret += "\n" + this.ipad + "// set gobject values\n";
561
562                 var iter = cls.props.map_iterator();
563                 while (iter.next()) {
564                         var p = iter.get_key();
565                         print("Check Write %s\n", p);
566                         if (!this.node.has(p)) {
567                                 continue;
568                         }
569                         if (this.shouldIgnoreWrapped(p)) {
570                                 continue;
571                         }
572                         
573                                 this.ignore(p);
574                         var v = this.node.get(p);
575
576                         var nodekey = this.node.get_key(p);
577
578                         // user defined properties.
579                         if (nodekey[0] == '#') {
580                                 continue;
581                         }
582                                 
583
584                         
585                         var is_raw = nodekey[0] == '$';
586                         
587                         // what's the type.. - if it's a string.. then we quote it..
588                         if (iter.get_value().type == "string" && !is_raw) {
589                                  v = "\"" +  v.escape("") + "\"";
590                         }
591                         if (v == "TRUE" || v == "FALSE") {
592                                 v = v.down();
593                         }
594                         if (iter.get_value().type == "float" && v[v.length-1] != 'f') {
595                                 v += "f";
596                         }
597                         
598                         
599                         this.ret += "%sthis.el.%s = %s;\n".printf(ipad,p,v); // // %s,  iter.get_value().type);
600                                         
601                            // got a property..
602                            
603
604                 }
605                 
606         }
607         /**
608          *  pack the children into the parent.
609          * 
610          * if the child's id starts with '*' then it is not packed...
611          * - this allows you to define children and add them manually..
612          */
613
614         void addChildren()
615         {
616                                 //code
617                 if (this.node.items.size < 1) {
618                         return;
619                 }
620                          
621                 var iter = this.node.items.list_iterator();
622                 var i = -1;
623                 while (iter.next()) {
624                         i++;
625                                 
626                         var ci = iter.get();
627
628                         if (ci.xvala_id[0] == '*') {
629                                 continue; // skip generation of children?
630                         }
631                                         
632                         var xargs = "";
633                         if (ci.has("* args")) {
634                                 
635                                 var ar = ci.get("* args").split(",");
636                                 for (var ari = 0 ; ari < ar.length; ari++ ) {
637                                         var arg = ar[ari].split(" ");
638                                                         xargs += "," + arg[arg.length -1];
639                                 }
640                         }
641                                         
642                         this.ret += this.ipad + "var child_" + "%d".printf(i) + " = new " + ci.xvala_xcls +
643                         "( _this " + xargs + ");\n" ;
644                         
645                         this.ret+= this.ipad + "child_" + "%d".printf(i) +".ref();\n"; // we need to reference increase unnamed children...
646                         
647                         if (ci.has("* prop")) {
648                                 this.ret+= ipad + "this.el." + ci.get("* prop") + " = child_" + "%d".printf(i) + ".el;\n";
649                                 continue;
650                         }
651
652         // not sure why we have 'true' in pack?!?
653                         if (!ci.has("pack") || ci.get("pack").down() == "false" || ci.get("pack").down() == "true") {
654                                 continue;
655                         }
656                         
657                         string[]  packing =  { "add" };
658                         if (ci.has("pack")) {
659                                 packing = ci.get("pack").split(",");
660                         }
661                         
662                         var pack = packing[0];
663                         this.ret += this.ipad + "this.el." + pack.strip() + " (  child_" + "%d".printf(i) + ".el " +
664                                            (packing.length > 1 ? 
665                                                 (", " + string.joinv(",", packing).substring(pack.length+1))
666                                         :
667                                                         ""
668                                                 ) + " );\n";
669         
670                                           
671                         if (ci.xvala_id[0] != '+') {
672                                 continue; // skip generation of children?
673                                                 
674                         }
675                         this.ret+= this.ipad + "this." + ci.xvala_id.substring(1) + " =  child_" + "%d".printf(i) +  ";\n";
676                                   
677                 }
678         }
679
680         void addInit()
681         {
682
683                 
684                 if (!this.node.has("init")) {
685                                 return;
686                 }
687                 this.ret+= "\n" + ipad + "// init method \n";
688         
689                 this.ret+= "\n" + ipad + this.padMultiline(ipad, this.node.get("init")) + "\n";
690
691          }
692          void addListeners()
693          {
694                 if (this.node.listeners.size < 1) {
695                         return;
696                 }
697                                 
698                         
699                         
700                 this.ret+= "\n" + ipad + "// listeners \n";
701
702                 var iter = this.node.listeners.map_iterator();
703                 while (iter.next()) {
704                         var k = iter.get_key();
705                         var v = iter.get_value();
706                                         this.ret+= this.ipad + "this.el." + k + ".connect( " + 
707                                         this.padMultiline(this.ipad,v) +");\n"; 
708                                         
709                                 }
710         }    
711                 void addEndCtor()
712         {
713                         
714                         
715                         
716                         // end ctor..
717                         this.ret+= this.pad + "}\n";
718         }
719
720
721         /*
722  * Standardize this crap...
723  * 
724  * standard properties (use to set)
725  *          If they are long values show the dialog..
726  *
727  * someprop : ....
728  * bool is_xxx  :: can show a pulldown.. (true/false)
729  * string html  
730  * $ string html  = string with value interpolated eg. baseURL + ".." 
731  *  Clutter.ActorAlign x_align  (typed)  -- shows pulldowns if type is ENUM? 
732  * $ untypedvalue = javascript untyped value...  
733  * _ string html ... = translatable..
734
735  * 
736  * object properties (not part of the GOjbect being wrapped?
737  * # Gee.ArrayList<Xcls_fileitem> fileitems
738  * 
739  * signals
740  * @ void open 
741  * 
742  * methods -- always text editor..
743  * | void clearFiles
744  * | someJSmethod
745  * 
746  * specials
747  * * prop -- string
748  * * args  -- string
749  * * ctor -- string
750  * * init -- big string?
751  * 
752  * event handlers (listeners)
753  *   just shown 
754  * 
755  * -----------------
756  * special ID values
757  *  +XXXX -- indicates it's a instance property / not glob...
758  *  *XXXX -- skip writing glob property (used as classes that can be created...)
759  * 
760  * 
761  */
762          
763         void addUserMethods()
764         {
765                         
766                 this.ret+= "\n" + pad + "// user defined functions \n";  
767                         
768                         // user defined functions...
769                 var iter = this.node.props.map_iterator();
770                 while(iter.next()) {
771                                 var k = iter.get_key();
772                         if (this.shouldIgnore(k)) {
773                                 continue;
774                         }
775                         // HOW TO DETERIME if its a method?            
776                                 if (k[0] != '|') {
777                                                 //strbuilder("\n" + pad + "// skip " + k + " - not pipe \n"); 
778                                                 continue;
779                         }       
780                                 // function in the format of {type} (args) { .... }
781                                 var kk = k.substring(2);
782                                 var vv = iter.get_value();
783                                 this.ret += this.pad + "public " + kk + " " + this.padMultiline(this.pad, vv) + "\n";
784                         
785                                 
786                         }
787         }
788
789         void iterChildren()
790         {
791                         
792                         if (this.depth > 0) {
793                         this.ret+= this.inpad + "}\n";
794                         }
795                 
796                 var iter = this.node.items.list_iterator();
797                 var i = -1;
798                 while (iter.next()) {
799                                 this.ret += this.mungeChild(iter.get());
800                 }
801                          
802                         if (this.depth < 1) {
803                                 this.ret+= this.inpad + "}\n";
804                         }
805                         
806                 }
807
808         string padMultiline(string pad, string str)
809         {
810                 var ar = str.strip().split("\n");
811                 return string.joinv("\n" + pad , ar);
812         }
813         
814         void ignore(string i) {
815                 this.ignoreList.add(i);
816                 
817         }
818         void ignoreWrapped(string i) {
819                 this.ignoreWrappedList.add(i);
820                 
821         }
822         bool shouldIgnore(string i)
823         {
824                 return ignoreList.contains(i);
825         }
826         bool shouldIgnoreWrapped(string i)
827         {
828                 return ignoreWrappedList.contains(i);
829         }
830         
831 }
832         
833          
834         
835         
836
837