git.roojs.org Git - app.Builder.js/blob - src/JsRender/NodeToJs.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 public class JsRender.NodeToJs : Object {
  13
  14         static uint indent = 1;
  15         static string indent_str = " ";
  16
  17         Node node;
  18         Gee.ArrayList<string>  doubleStringProps;  // need to think if this is a good idea like this
  19         string pad;
  20
  21         Gee.ArrayList<string> els;
  22         //Gee.ArrayList<string> skip;
  23         Gee.HashMap<string,string> ar_props;
  24
  25         Gee.HashMap<string,string> out_props;
  26         Gee.HashMap<string,string> out_listeners;
  27         Gee.HashMap<string,Node> out_nodeprops;
  28         Gee.ArrayList<Node> out_children;
  29         Gee.HashMap<string,Gee.ArrayList<Node>> out_props_array;
  30         Gee.HashMap<string,Gee.ArrayList<string>> out_props_array_plain;
  31
  32         NodeToJs top;
  33         string ret;
  34
  35         int cur_line;
  36
  37
  38         public NodeToJs( Node node, Gee.ArrayList<string> doubleStringProps, string pad, NodeToJs? parent)
  39         {
  40                 this.node = node;
  41                 this.doubleStringProps = doubleStringProps;
  42                 this.pad = pad;
  43
  44                 this.els = new Gee.ArrayList<string>();
  45                 this.ar_props = new Gee.HashMap<string,string>();
  46
  47
  48                 this.out_props = new Gee.HashMap<string,string>();
  49                 this.out_listeners = new Gee.HashMap<string,string>();
  50                 this.out_nodeprops = new Gee.HashMap<string,Node>() ;
  51                 this.out_children = new Gee.ArrayList<Node> ();
  52                 this.out_props_array = new Gee.HashMap<string,Gee.ArrayList<Node>>() ;
  53                 this.out_props_array_plain = new Gee.HashMap<string,Gee.ArrayList<string>>() ;
  54
  55
  56
  57                 this.cur_line = parent == null ? 0 : parent.cur_line;
  58                 this.ret = "";
  59                 this.top = parent == null ? this : parent.top;
  60
  61         }
  62
  63
  64
  65
  66
  67
  68         public string munge ( )
  69         {
  70                 //return this.mungeToString(this.node);
  71
  72                 this.node.line_start = this.cur_line;
  73
  74                 this.checkChildren();
  75                 this.readProps();
  76                 this.readArrayProps();
  77                 this.readListeners();
  78
  79                 if (!this.node.props.has_key("* xinclude")) {
  80                         this.iterChildren();
  81                 }
  82
  83
  84
  85                 // no properties to output...
  86                 if (this.els.size < 1) {
  87                         return "";
  88                 }
  89
  90
  91
  92                 // oprops...
  93
  94                 var spad = pad.substring(0, this.pad.length-indent);
  95
  96
  97                 var str_props = gLibStringListJoin(",\n" + this.pad , this.els) ;
  98                 //print ("STR PROPS: " + str_props);
  99
 100
 101
 102                 if (!this.node.props.has_key("* xinclude")) {
 103                         return   "{\n" +
 104                                 this.pad  + str_props +
 105                                 "\n" + spad +  "}";
 106                 }
 107                 // xinclude...
 108
 109
 110                 return "Roo.apply(" + this.node.props.get("* xinclude") + "._tree(), "+
 111                          "{\n" +
 112                                 this.pad  + str_props +
 113                                 "\n" + spad +  "})";
 114
 115         }
 116                 /**
 117
 118         This currently works by creating a key/value array of this.els, which is just an array of properties..
 119         this is so that join() works...
 120
 121         how this could work:
 122         a) output header
 123         b) output plan properties.
 124         c) output listeners..
 125         c) output *prop
 126         g) output prop_arrays..
 127         d) output children
 128         e)
 129
 130
 131
 132         */
 133
 134
 135         public string mungeOut()
 136         {
 137                 if (this.node.props.has_key("* xinclude")) {
 138                         this.addLine("Roo.apply(" + this.node.props.get("* xinclude") + "._tree(), {");
 139
 140                 } else {
 141                         this.addLine("{");
 142                 }
 143                 var suffix = "";
 144                 // output the items...
 145                 // work out remaining items...
 146                 var  total_nodes = this.out_props.size +
 147                                 this.out_props_array_plain.size +
 148                                 (this.out_listeners.size > 0 ? 1 : 0) +
 149                                 this.out_nodeprops.size +
 150                                 this.out_props_array.size +
 151                                 (this.out_children.size > 0 ? 1 : 0);
 152
 153                 // plain properties.
 154                 var iter = this.out_props.map_iterator();
 155                 while(iter.next()) {
 156                         total_nodes--;
 157                         suffix = total_nodes > 0 ? "," : "";
 158                         this.addLine(this.pad + iter.get_key() + " : " + iter.get_value() + suffix);
 159                 }
 160
 161                 //                              out_props_array_plain
 162                 var paiter = this.out_props_array_plain.map_iterator();
 163
 164                 while(paiter.next()) {
 165                         total_nodes--;
 166
 167                         this.addLine(this.pad + paiter.get_key() + " : [");
 168                         var paliter = paiter.get_value().list_iterator();
 169                         while (paliter.next()) {
 170                                 suffix = paliter.has_next()  ? "," : "";
 171                                 this.addMultiLine(this.pad + indent_str +   paliter.get() + suffix);
 172                         }
 173
 174                         suffix = total_nodes > 0 ? "," : "";
 175 //                                      this.mungeChild(this.pad + indent_str, niter.get_value())
 176                         this.addLine(this.pad + "]" + suffix);
 177                 }
 178
 179
 180                 // listeners..
 181
 182                 if (this.out_listeners.size > 0 ) {
 183                         total_nodes--;
 184                         this.addLine(this.pad + "listeners : {");
 185                         iter = this.out_listeners.map_iterator();
 186                         var sz = this.out_listeners.size;
 187                         while(iter.next()) {
 188                                 sz--;
 189                                 suffix = sz > 0 ? "," : "";
 190                                 this.addMultiLine(this.pad + indent_str + iter.get_key() + " : " + iter.get_value() + suffix);
 191                         }
 192                         suffix = total_nodes > 0 ? "," : "";
 193                         this.addLine(this.pad + "}" + suffix);
 194
 195                 }
 196                 // * prop
 197
 198                 var niter = this.out_nodeprops.map_iterator();
 199
 200                 while(niter.next()) {
 201                         total_nodes--;
 202                         suffix = total_nodes > 0 ? "," : "";
 203                         this.addMultiLine(this.pad + niter.get_key() + " : " +
 204                                         this.mungeChild(this.pad + indent_str, niter.get_value())
 205                         );
 206                 }
 207                 // prop arrays...
 208
 209                 var piter = this.out_props_array.map_iterator();
 210
 211                 while(piter.next()) {
 212                         total_nodes--;
 213
 214                         this.addLine(this.pad + niter.get_key() + " : [");
 215                         var pliter = piter.get_value().list_iterator();
 216                         while (pliter.next()) {
 217                                 suffix = pliter.has_next()  ? "," : "";
 218                                 this.addMultiLine(this.pad + indent_str +
 219                                         this.mungeChild(this.pad + indent_str  + indent_str, pliter.get()) + suffix);
 220                         }
 221
 222                         suffix = total_nodes > 0 ? "," : "";
 223 //                                      this.mungeChild(this.pad + indent_str, niter.get_value())
 224                         this.addLine(this.pad + "]" + suffix);
 225                 }
 226
 227                 // children..
 228                 if (this.out_children.size > 0) {
 229                         this.addLine(this.pad + "items  : [");
 230                         var cniter = this.out_children.list_iterator();
 231                         while (cniter.next()) {
 232                                 suffix = cniter.has_next()  ? "," : "";
 233                                 this.addMultiLine(this.pad +
 234                                         this.mungeChild(this.pad + indent_str  + indent_str, cniter.get()) + suffix
 235                                 );
 236
 237                         }
 238
 239                         this.addLine(this.pad + indent_str + "]");
 240                 }
 241
 242                 if (this.node.props.has_key("* xinclude")) {
 243                         this.addLine(this.pad + "})");
 244
 245                 } else {
 246                         this.addLine(this.pad + "}");
 247                 }
 248
 249
 250                 return this.ret;
 251
 252         }
 253
 254
 255
 256
 257
 258         public void addLine(string str= "")
 259         {
 260                 this.cur_line ++;
 261                 this.ret += str+ "\n";
 262
 263
 264
 265         }
 266
 267         public void addMultiLine(string str= "")
 268         {
 269
 270                 this.cur_line += str.split("\n").length;
 271                 //this.ret +=  "/*%d*/ ".printf(l) + str + "\n";
 272                 this.ret +=   str + "\n";
 273         }
 274
 275         string gLibStringListJoin( string sep, Gee.ArrayList<string> ar)
 276         {
 277                 var ret = "";
 278                 for (var i = 0; i < ar.size; i++) {
 279                         ret += i>0 ? sep : "";
 280                         ret += ar.get(i);
 281                 }
 282                 return ret;
 283
 284         }
 285         public string mungeChild(string pad ,  Node cnode)
 286         {
 287                 var x = new  NodeToJs(cnode, this.doubleStringProps, pad, this);
 288                 return x.munge();
 289         }
 290
 291
 292
 293
 294         public void checkChildren ()
 295         {
 296
 297
 298                 // look throught he chilren == looking for * prop.. -- fixme might not work..
 299
 300
 301                 if (!this.node.hasChildren()) {
 302                         return;
 303                 }
 304                 // look for '*props'
 305
 306                 for (var ii =0; ii< this.node.items.size; ii++) {
 307                         var pl = this.node.items.get(ii);
 308                         if (!pl.props.has_key("* prop")) {
 309                                 //newitems.add(pl);
 310                                 continue;
 311                         }
 312
 313                         //print(JSON.stringify(pl,null,4));
 314                         // we have a prop...
 315                         //var prop = pl['*prop'] + '';
 316                         //delete pl['*prop'];
 317                         var prop = pl.get("* prop");
 318                         print("got prop "+ prop + "\n");
 319
 320                         // name ends in [];
 321                         if (! Regex.match_simple("\\[\\]$", prop)) {
 322                                 // it's a standard prop..
 323
 324                                 // munge property..??
 325
 326                                 this.out_nodeprops.set(prop, pl);
 327
 328                                 this.els.add( prop  + " : " + this.mungeChild (  this.pad + indent_str,  pl));
 329
 330
 331                                 //keys.push(prop);
 332                                 continue;
 333                         }
 334
 335
 336
 337
 338                         var sprop  = prop.replace("[]", "");
 339                         print("sprop is : " + sprop + "\n");
 340
 341                         // it's an array type..
 342                         var old = "";
 343                         if (!this.ar_props.has_key(sprop)) {
 344
 345                                 this.ar_props.set(sprop, "");
 346                                 this.out_props_array.set(sprop, new Gee.ArrayList<Node>());
 347                         } else {
 348                                 old = this.ar_props.get(sprop);
 349                         }
 350                         var nstr  = old += old.length > 0 ? ",\n" : "";
 351                         nstr += this.mungeChild( this.pad + indent_str + indent_str + indent_str ,   pl);
 352                         this.out_props_array.get(sprop).add( pl);
 353                         this.ar_props.set(sprop, nstr);
 354
 355
 356                 }
 357
 358         }
 359         /*
 360  * Standardize this crap...
 361  *
 362  * standard properties (use to set)
 363  *          If they are long values show the dialog..
 364  *
 365  * someprop : ....
 366  * bool is_xxx  :: can show a pulldown.. (true/false)
 367  * string html
 368  * $ string html  = string with value interpolated eg. baseURL + ".."
 369  *  Clutter.ActorAlign x_align  (typed)  -- shows pulldowns if type is ENUM?
 370  * $ untypedvalue = javascript untyped value...
 371  * _ string html ... = translatable..
 372
 373  *
 374  * object properties (not part of the GOjbect being wrapped?
 375  * # Gee.ArrayList<Xcls_fileitem> fileitems
 376  *
 377  * signals
 378  * @ void open
 379  *
 380  * methods -- always text editor..
 381  * | void clearFiles
 382  * | someJSmethod
 383  *
 384  * specials
 385  * * prop -- string
 386  * * args  -- string
 387  * * ctor -- string
 388  * * init -- big string?
 389  *
 390  * event handlers (listeners)
 391  *   just shown
 392  *
 393  * -----------------
 394  * special ID values
 395  *  +XXXX -- indicates it's a instance property / not glob...
 396  *  *XXXX -- skip writing glob property (used as classes that can be created...)
 397  *
 398  *
 399  */
 400         public void readProps()
 401         {
 402                 string left;
 403                 Regex func_regex ;
 404
 405                 if (this.node.props.has_key("$ xns")) {
 406                         this.out_props.set("'|xns'", this.node.props.get("$ xns") );
 407
 408                         this.els.add("'|xns' : '" + this.node.props.get("$ xns") + "'");
 409
 410                 }
 411
 412
 413                 try {
 414                         func_regex = new Regex("^\\s+|\\s+$");
 415                 } catch (Error e) {
 416                         print("failed to build regex");
 417                         return;
 418                 }
 419                 // sort the key's so they always get rendered in the same order..
 420
 421                 var keys = new Gee.ArrayList<string>();
 422                 var piter = this.node.props.map_iterator();
 423                 while (piter.next() ) {
 424                         string k;
 425                         string ktype;
 426                         string kflag;
 427                         this.node.normalize_key(piter.get_key(), out k, out kflag, out ktype);
 428
 429                         keys.add(k);
 430                 }
 431
 432                 keys.sort((  a,  b) => {
 433                         return ((string)a).collate((string)b);
 434                         //if (a == b) return 0;
 435                         //return a < b ? -1 : 1;
 436                 });
 437
 438
 439
 440                 for (var i = 0; i< keys.size; i++) {
 441                         var key = this.node.get_key(keys.get(i));
 442                         print("ADD KEY %s\n", key);
 443                         string k;
 444                         string ktype;
 445                         string kflag;
 446
 447                         this.node.normalize_key(key, out k, out kflag, out ktype);
 448
 449
 450                         var v = this.node.get(key);
 451
 452
 453                         //if (this.skip.contains(k) ) {
 454                         //      continue;
 455                         //}
 456                         if (  Regex.match_simple("\\[\\]$", k)) {
 457                                 // array .. not supported... here?
 458
 459
 460                         }
 461
 462                         string leftv = k;
 463                         // skip builder stuff. prefixed with  '.' .. just like unix fs..
 464                         if (kflag == ".") { // |. or . -- do not output..
 465                                 continue;
 466                         }
 467                          if (kflag == "*") {
 468                                 // ignore '* prop'; ???
 469                                 continue;
 470                          }
 471
 472
 473                         if (Lang.isKeyword(leftv) || Lang.isBuiltin(leftv)) {
 474                                 left = "'" + leftv + "'";
 475                         } else if (Regex.match_simple("[^A-Za-z_]+",leftv)) { // not plain a-z... - quoted.
 476                                 var val = this.node.quoteString(leftv);
 477
 478                                 left = "'" + val.substring(1, val.length-2).replace("'", "\\'") + "'";
 479                         } else {
 480                                 left = leftv;
 481                         }
 482
 483
 484                         // next.. is it a function.. or a raw string..
 485                         if (
 486                                 kflag == "|"
 487                                 ||
 488                                 kflag == "$"
 489                                 ||
 490                                 ktype == "function"
 491
 492                                 // ??? any others that are raw output..
 493                                 ) {
 494                                 // does not hapepnd with arrays..
 495                                 if (v.length < 1) {  //if (typeof(el) == 'string' && !obj[i].length) { //skip empty.
 496                                         continue;
 497                                 }
 498                                 /*
 499                                 print(v);
 500                                 string str = "";
 501                                 try {
 502                                         str = func_regex.replace(v,v.length, 0, "");
 503                                 } catch(Error e) {
 504                                         print("regex failed");
 505                                         return "";
 506                                 }
 507                                 */
 508                                 var str = v.strip();
 509
 510                                 var lines = str.split("\n");
 511                                 var nstr = "" + str;
 512                                 if (lines.length > 0) {
 513                                         nstr =  string.joinv("\n" + this.pad, lines);
 514                                         //nstr =  string.joinv("\n", lines);
 515                                 }
 516                                 this.out_props.set(left, nstr);
 517                                 //print("==> " +  str + "\n");
 518                                 this.els.add(left + " : "+  nstr);
 519                                 continue;
 520                         }
 521                         // standard..
 522
 523
 524                         if (
 525                                 Lang.isNumber(v)
 526                                 ||
 527                                 Lang.isBoolean(v)
 528                                 ||
 529                                 ktype.down() == "boolean"
 530                                 ||
 531                                 ktype.down() == "bool"
 532                                 ||
 533                                 ktype.down() == "number"
 534                                 ||
 535                                 ktype.down() == "int"
 536                             ) { // boolean or number...?
 537                             this.out_props.set(left, v.down());
 538                                 this.els.add(left + " : " + v.down() );
 539                                 continue;
 540                         }
 541
 542                         // is it a translated string?
 543
 544
 545
 546
 547                         // strings..
 548                         //if (this.doubleStringProps.size < 1) {
 549                         //      this.els.add(left + this.node.quoteString(v));
 550                         //      continue;
 551                         //}
 552
 553                         if (this.doubleStringProps.index_of(k) > -1) {
 554                                 // then use the translated version...
 555
 556                                 els.add(left + "_this._strings['" +
 557                                         GLib.Checksum.compute_for_string (ChecksumType.MD5, v) +
 558                                         "']"
 559                                 );
 560                                 continue;
 561                         }
 562                         if (ktype.down() == "string" && k[0] == '_') {
 563                                 els.add(left + "_this._strings['" +
 564                                         GLib.Checksum.compute_for_string (ChecksumType.MD5, v) +
 565                                         "']"
 566                                 );
 567                                 continue;
 568                         }
 569                         // otherwise it needs to be encapsulated.. as single quotes..
 570
 571                         var vv = this.node.quoteString(v);
 572                         // single quote.. v.substring(1, v.length-1).replace("'", "\\'") + "'";
 573                         this.els.add(left + " : " +  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 574                         this.out_props.set(left,  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 575
 576
 577
 578
 579                 }
 580         }
 581         public void readArrayProps()
 582         {
 583
 584                 // this is not needed in the new version
 585                 // as array props are handled more directly..
 586
 587                 // handle the childitems  that are arrays.. eg. button[] = {  }...
 588
 589                 // note this does not handle a mix of nodes and properties with the same
 590
 591                 string left;
 592
 593                 var iter = this.ar_props.map_iterator();
 594                 while (iter.next()) {
 595                         var k = iter.get_key();
 596                         var right = iter.get_value();
 597
 598                         string leftv = k[0] == '|' ? k.substring(1) : k;
 599                         if (Lang.isKeyword(leftv) || Lang.isBuiltin(leftv)) {
 600                                 left = "'" + leftv + "'";
 601                         } else if (Regex.match_simple("[^A-Za-z_]+",leftv)) { // not plain a-z... - quoted.
 602                                 var val = this.node.quoteString(leftv);
 603
 604                                 left = "'" + val.substring(1, val.length-2).replace("'", "\\'") + "'";
 605                         } else {
 606                                 left = leftv;
 607                         }
 608
 609
 610                         if (right.length > 0){
 611                                 //if (this.out_props_array_plain.has_key(left)) {
 612                                 //      this.out_props_array_plain.set(left, new Gee.ArrayList<string>());
 613                                 //}
 614                                 //this.out_props_array_plain.get(left).add(right);
 615
 616                                 this.els.add(left + " : [\n" +  this.pad + indent_str + indent_str +
 617                                              right + "\n" + this.pad + "]");
 618                         }
 619
 620
 621                 }
 622
 623         }
 624         public void readListeners()
 625         {
 626
 627                 if (this.node.listeners.size < 1) {
 628                         return;
 629                 }
 630                 // munge the listeners.
 631                 //print("ADDING listeners?");
 632
 633
 634
 635
 636                 var keys = new Gee.ArrayList<string>();
 637                 var piter = this.node.listeners.map_iterator();
 638                 while (piter.next() ) {
 639
 640                         keys.add(piter.get_key());
 641                 }
 642                 keys.sort((  a,  b) => {
 643                         return ((string)a).collate((string)b);
 644                         //if (a == b) return 0;
 645                         //return a < b ? -1 : 1;
 646                 });
 647
 648                 var itms = "listeners : {\n";
 649
 650                 for (var i = 0; i< keys.size; i++) {
 651                         var key = keys.get(i);
 652                         var val = this.node.listeners.get(key);
 653
 654
 655                         itms += i >0 ? ",\n" : "";
 656                         //
 657                         var str = val.strip();
 658                         var lines = str.split("\n");
 659                         if (lines.length > 0) {
 660                                 //str = string.joinv("\n" + this.pad + "           ", lines);
 661                                 str = string.joinv("\n" + this.pad + indent_str + indent_str , lines);
 662                         }
 663
 664                         itms +=  this.pad + indent_str  + key.replace("|", "")  + " : " + str;
 665                         this.out_listeners.set(key.replace("|", "") ,str);
 666
 667
 668                 }
 669                 itms += "\n" + this.pad + "}";
 670                 //print ( "ADD " + itms);
 671                 this.els.add(itms);
 672
 673         }
 674
 675         public void iterChildren()
 676         {
 677
 678
 679                 // finally munge the children...
 680                 if (this.node.items.size < 1) {
 681                         return;
 682                 }
 683                 var itms = "items : [\n";
 684                 var n = 0;
 685                 for(var i = 0; i < this.node.items.size;i++) {
 686                         var ele = this.node.items.get(i);
 687                         if (ele.props.has_key("* prop")) {
 688                                 continue;
 689                         }
 690                         if (n > 0) {
 691                                  itms += ",\n";
 692                         }
 693                         n++;
 694                         itms += this.pad + indent_str  +
 695                                 this.mungeChild( this.pad + indent_str + indent_str ,  ele);
 696                         this.out_children.add(ele);
 697
 698                 }
 699                 itms +=  "\n"+  this.pad + "]"  + "\n";
 700                 this.els.add(itms);
 701         }
 702
 703                 // finally output listeners...
 704
 705         public void xIncludeToString()
 706         {
 707
 708
 709         }
 710
 711 }
 712
 713
 714
 715