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