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  *  We are changing this to output as we go.
   9  *   However... since line-endings on properties have ',' (not ;) like vala.
  10  *           we have to be a bit smarter about how to output.
  11  *
  12  *
  13  *
  14 */
  15
  16
  17
  18
  19 public class JsRender.NodeToJs : Object {
  20
  21         static uint indent = 1;
  22         static string indent_str = " ";
  23
  24
  25
  26         Node node;
  27         Gee.ArrayList<string>  doubleStringProps;  // need to think if this is a good idea like this
  28         string pad;
  29         public JsRender renderer;
  30
  31         Gee.HashMap<string,string> out_props;
  32         Gee.HashMap<string,string> out_listeners;
  33         Gee.HashMap<string,Node> out_nodeprops;
  34         Gee.ArrayList<Node> out_children;
  35         Gee.HashMap<string,Gee.ArrayList<Node>> out_props_array;
  36         Gee.HashMap<string,Gee.ArrayList<string>> out_props_array_plain;
  37
  38         NodeToJs top;
  39         public string ret;
  40
  41         public int cur_line;
  42
  43
  44         public NodeToJs( Node node, Gee.ArrayList<string> doubleStringProps, string pad, NodeToJs? parent)
  45         {
  46                 this.node = node;
  47                 this.doubleStringProps = doubleStringProps;
  48                 this.pad = pad;
  49
  50                 //this.els = new Gee.ArrayList<string>();
  51                 //this.ar_props = new Gee.HashMap<string,string>();
  52
  53
  54
  55                 // this is the bit that causes issues - we have to output as we go, otherwise we
  56                 // can not work out which line is which...
  57
  58                 this.out_props = new Gee.HashMap<string,string>();
  59                 this.out_listeners = new Gee.HashMap<string,string>();
  60
  61
  62                 this.out_nodeprops = new Gee.HashMap<string,Node>() ;
  63                 this.out_children = new Gee.ArrayList<Node> ();
  64
  65                 this.out_props_array = new Gee.HashMap<string,Gee.ArrayList<Node>>(); // filled in by 'checkChildren'
  66                 this.out_props_array_plain = new Gee.HashMap<string,Gee.ArrayList<string>>() ;
  67
  68
  69
  70                 this.cur_line = parent == null ? 0 : parent.cur_line  ; //-1 as we usuall concat onto the existin gline?
  71                 if (parent != null) {
  72                         this.renderer = parent.renderer;
  73                 }
  74                 this.ret = "";
  75                 this.top = parent == null ? this : parent.top;
  76                 // reset the maps...
  77                 if (parent == null) {
  78                         node.node_lines = new Gee.ArrayList<int>();
  79                         node.node_lines_map = new Gee.HashMap<int,Node>();
  80                  }
  81         }
  82
  83
  84
  85
  86
  87
  88         public string munge ( )
  89         {
  90                 //return this.mungeToString(this.node);
  91
  92
  93                 this.checkChildren();
  94                 this.readProps();
  95                 //this.readArrayProps();
  96                 this.readListeners();
  97
  98                 if (!this.node.props.has_key("* xinclude")) {
  99                         this.iterChildren();
 100                 }
 101
 102
 103
 104                 // no properties to output...
 105                 //if (this.els.size < 1) {
 106                 //      return "";
 107                 //}
 108
 109                 this.mungeOut();
 110                 return this.ret;
 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         public Gee.ArrayList<string> orderedPropKeys() {
 132
 133                 var ret = new Gee.ArrayList<string> ();
 134                 var niter = this.out_props.map_iterator();
 135                 while(niter.next()) {
 136                         ret.add(niter.get_key());
 137                 }
 138
 139                 ret.sort((  a,  b) => {
 140                         return ((string)a).collate((string)b);
 141                         //if (a == b) return 0;
 142                         //return a < b ? -1 : 1;
 143                 });
 144                 return ret;
 145         }
 146         public Gee.ArrayList<string> orderedListenerKeys() {
 147
 148                 var ret = new Gee.ArrayList<string> ();
 149                 var niter = this.out_listeners.map_iterator();
 150                 while(niter.next()) {
 151                         ret.add(niter.get_key());
 152                 }
 153
 154                 ret.sort((  a,  b) => {
 155                         return ((string)a).collate((string)b);
 156                         //if (a == b) return 0;
 157                         //return a < b ? -1 : 1;
 158                 });
 159                 return ret;
 160         }
 161
 162
 163         public string mungeOut()
 164         {
 165                 this.node.line_start = this.cur_line;
 166                 this.top.node.setNodeLine(this.cur_line, this.node);
 167                 var spad = this.pad.substring(0, this.pad.length-indent);
 168
 169                 if (this.node.props.has_key("* xinclude")) {
 170                         this.addLine("Roo.apply(" + this.node.props.get("* xinclude") + "._tree(), {");
 171
 172                 } else {
 173                         this.addLine("{");
 174                 }
 175                 var suffix = "";
 176                 // output the items...
 177                 // work out remaining items...
 178                 var  total_nodes = this.out_props.size +
 179                                 this.out_props_array_plain.size +
 180                                 (this.out_listeners.size > 0 ? 1 : 0) +
 181                                 this.out_nodeprops.size +
 182                                 this.out_props_array.size +
 183                                 (this.out_children.size > 0 ? 1 : 0);
 184
 185
 186
 187                 // plain properties.
 188                 var iter = this.orderedPropKeys().list_iterator();
 189                 while(iter.next()) {
 190                         total_nodes--;
 191                         suffix = total_nodes > 0 ? "," : "";
 192                         var k = iter.get();
 193                         var v = this.out_props.get(k);
 194
 195                         this.addMultiLine(this.pad + k + " : " + v + suffix);
 196                 }
 197
 198                 // listeners..
 199
 200                 if (this.out_listeners.size > 0 ) {
 201                         total_nodes--;
 202                         this.addLine(this.pad + "listeners : {");
 203                         iter = this.orderedListenerKeys().list_iterator();
 204
 205                         var sz = this.out_listeners.size;
 206                         while(iter.next()) {
 207                                 sz--;
 208                                 suffix = sz > 0 ? "," : "";
 209                                 var k = iter.get();
 210                                 var v = this.out_listeners.get(k);
 211                                 this.addMultiLine(this.pad + indent_str + k + " : " + v + suffix);
 212                         }
 213                         suffix = total_nodes > 0 ? "," : "";
 214                         this.addLine(this.pad + "}" + suffix);
 215
 216                 }
 217
 218                 //------- at this point it is the end of the code relating directly to the object..
 219
 220                 this.node.line_end = this.cur_line;
 221
 222
 223
 224                 // * prop
 225
 226                 var niter = this.out_nodeprops.map_iterator();
 227
 228                 while(niter.next()) {
 229                         total_nodes--;
 230                         suffix = total_nodes > 0 ? "," : "";
 231                         var l = this.pad + niter.get_key() + " : " +
 232                                         this.mungeChildNew(this.pad + indent_str, niter.get_value()) + suffix;
 233                         this.addMultiLine(l);
 234                 }
 235                 // prop arrays...
 236
 237                 var piter = this.out_props_array.map_iterator();
 238
 239                 while(piter.next()) {
 240                         total_nodes--;
 241
 242                         this.addLine(this.pad + piter.get_key() + " : [");
 243                         var pliter = piter.get_value().list_iterator();
 244                         while (pliter.next()) {
 245                                 suffix = pliter.has_next()  ? "," : "";
 246                                 this.addMultiLine(this.pad + indent_str +
 247                                         this.mungeChildNew(this.pad + indent_str  + indent_str, pliter.get()) + suffix);
 248                         }
 249
 250                         suffix = total_nodes > 0 ? "," : "";
 251
 252                         this.addLine(this.pad + "]" + suffix);
 253                 }
 254
 255                 // children..
 256                 if (this.out_children.size > 0) {
 257                         this.addLine(this.pad + "items  : [" );
 258                         var cniter = this.out_children.list_iterator();
 259                         while (cniter.next()) {
 260                                 suffix = cniter.has_next()  ? "," : "";
 261                                 this.addMultiLine(this.pad + indent_str +
 262                                         this.mungeChildNew(this.pad + indent_str  + indent_str, cniter.get()) + suffix
 263                                 );
 264
 265                         }
 266
 267                         this.addLine(this.pad +   "]");
 268                 }
 269
 270                 if (this.node.props.has_key("* xinclude")) {
 271                         this.ret += spad + "})";
 272
 273                 } else {
 274                         this.ret += spad + "}";
 275                 }
 276
 277                 this.node.sortLines();
 278                 return this.ret;
 279
 280         }
 281
 282         /**
 283         * Line endings
 284         *     if we end with a ','
 285         *
 286         */
 287
 288         char last_line_end = 0;
 289
 290         /**
 291         * add a line - note we will end up with an extra line break
 292         *     at beginning of nodes doing this..
 293         *
 294         * @param str = text to add..
 295         * @param line_end = 0  (just add a line break)
 296         *        line_end = ','  and ","
 297         *
 298         */
 299         public void addLine(string str, char line_end)
 300         {
 301                 this.ret += (this.line_end == 0 ? "" : this.last_line_end) + "\n";
 302                 this.cur_line ++;
 303                 this.ret += str ;
 304                 //this.ret +=  "/*%d(%d-%d)*/ ".printf(this.cur_line -1, this.node.line_start,this.node.line_end) + str + "\n";
 305
 306
 307         }
 308
 309         public void addMultiLine(string str= "")
 310         {
 311
 312                 //this.ret +=   "/*%d(%d-%d)*/ ".printf(this.cur_line, this.node.line_start,this.node.line_end)+ str + "\n";
 313                 this.ret +=   str + "\n";
 314                 this.cur_line += str.split("\n").length;
 315         }
 316
 317         public string mungeChildNew(string pad ,  Node cnode )
 318         {
 319                 var x = new  NodeToJs(cnode, this.doubleStringProps, pad, this);
 320
 321                 x.munge();
 322                 return x.ret;
 323         }
 324
 325         /**
 326         * loop through items[] array see if any of the children have '* prop'
 327         * -- which means they are a property of this node.
 328         * -- ADD TO : this.opt_props_array
 329         *
 330         */
 331
 332         public void checkChildren ()
 333         {
 334
 335
 336                 // look throught he chilren == looking for * prop.. -- fixme might not work..
 337
 338
 339                 if (!this.node.hasChildren()) {
 340                         return;
 341                 }
 342                 // look for '*props'
 343
 344                 for (var ii =0; ii< this.node.items.size; ii++) {
 345                         var pl = this.node.items.get(ii);
 346                         if (!pl.props.has_key("* prop")) {
 347                                 //newitems.add(pl);
 348                                 continue;
 349                         }
 350
 351                         //print(JSON.stringify(pl,null,4));
 352                         // we have a prop...
 353                         //var prop = pl['*prop'] + '';
 354                         //delete pl['*prop'];
 355                         var prop = pl.get("* prop");
 356                         //print("got prop "+ prop + "\n");
 357
 358                         // name ends in [];
 359                         if (! Regex.match_simple("\\[\\]$", prop)) {
 360                                 // it's a standard prop..
 361
 362                                 // munge property..??
 363
 364                                 this.out_nodeprops.set(prop, pl);
 365
 366                                 continue;
 367                         }
 368
 369
 370
 371
 372                         var sprop  = prop.replace("[]", "");
 373                         //print("sprop is : " + sprop + "\n");
 374
 375                         // it's an array type..
 376                         //var old = "";
 377                         if (!this.out_props_array.has_key(sprop)) {
 378                                 this.out_props_array.set(sprop, new Gee.ArrayList<Node>());
 379                         }
 380
 381
 382                         this.out_props_array.get(sprop).add( pl);
 383                         //this.ar_props.set(sprop, nstr);
 384
 385
 386                 }
 387
 388         }
 389         /*
 390  * Standardize this crap...
 391  *
 392  * standard properties (use to set)
 393  *          If they are long values show the dialog..
 394  *
 395  * someprop : ....
 396  * bool is_xxx  :: can show a pulldown.. (true/false)
 397  * string html
 398  * $ string html  = string with value interpolated eg. baseURL + ".."
 399  *  Clutter.ActorAlign x_align  (typed)  -- shows pulldowns if type is ENUM?
 400  * $ untypedvalue = javascript untyped value...
 401  * _ string html ... = translatable..
 402
 403  *
 404  * object properties (not part of the GOjbect being wrapped?
 405  * # Gee.ArrayList<Xcls_fileitem> fileitems
 406  *
 407  * signals
 408  * @ void open
 409  *
 410  * methods -- always text editor..
 411  * | void clearFiles
 412  * | someJSmethod
 413  *
 414  * specials
 415  * * prop -- string
 416  * * args  -- string
 417  * * ctor -- string
 418  * * init -- big string?
 419  *
 420  * event handlers (listeners)
 421  *   just shown
 422  *
 423  * -----------------
 424  * special ID values
 425  *  +XXXX -- indicates it's a instance property / not glob...
 426  *  *XXXX -- skip writing glob property (used as classes that can be created...)
 427  *
 428  *
 429  */
 430         public void readProps()
 431         {
 432                 string left;
 433                 Regex func_regex ;
 434
 435                 if (this.node.props.has_key("$ xns")) {
 436                         this.out_props.set("'|xns'", "'" +  this.node.props.get("$ xns") + "'" );
 437
 438                         //this.els.add("'|xns' : '" + this.node.props.get("$ xns") + "'");
 439
 440                 }
 441
 442
 443                 try {
 444                         func_regex = new Regex("^\\s+|\\s+$");
 445                 } catch (RegexError e) {
 446                         print("failed to build regex");
 447                         return;
 448                 }
 449                 // sort the key's so they always get rendered in the same order..
 450
 451                 var keys = new Gee.ArrayList<string>();
 452                 var piter = this.node.props.map_iterator();
 453                 while (piter.next() ) {
 454                         string k;
 455                         string ktype;
 456                         string kflag;
 457                         this.node.normalize_key(piter.get_key(), out k, out kflag, out ktype);
 458
 459                         keys.add(k);
 460                 }
 461
 462                 keys.sort((  a,  b) => {
 463                         return ((string)a).collate((string)b);
 464                         //if (a == b) return 0;
 465                         //return a < b ? -1 : 1;
 466                 });
 467
 468                 var has_cms = this.node.has("cms-id");
 469
 470                 for (var i = 0; i< keys.size; i++) {
 471                         var key = this.node.get_key(keys.get(i));
 472                         //("ADD KEY %s\n", key);
 473                         string k;
 474                         string ktype;
 475                         string kflag;
 476
 477                         this.node.normalize_key(key, out k, out kflag, out ktype);
 478
 479
 480                         var v = this.node.get(key);
 481
 482
 483                         //if (this.skip.contains(k) ) {
 484                         //      continue;
 485                         //}
 486                         if (  Regex.match_simple("\\[\\]$", k)) {
 487                                 // array .. not supported... here?
 488
 489
 490                         }
 491
 492                         string leftv = k;
 493                         // skip builder stuff. prefixed with  '.' .. just like unix fs..
 494                         if (kflag == ".") { // |. or . -- do not output..
 495                                 continue;
 496                         }
 497                         if (kflag == "*") {
 498                                 // ignore '* prop'; ???
 499                                 continue;
 500                         }
 501
 502                         // handle cms-id // html
 503                         if (has_cms && k == "cms-id") {
 504                                 continue; // ignore it...
 505                         }
 506                         // html must not be a dynamic property...
 507                         // note - we do not translate this either...
 508                         if (has_cms && k == "html" && kflag != "$") {
 509
 510
 511                                 this.out_props.set("html", "Pman.Cms.content(" +
 512                                         this.node.quoteString(this.renderer.name + "::" + this.node.get("cms-id")) +
 513                                          ", " +
 514                                         this.node.quoteString(v) +
 515                                          ")");
 516
 517                                 continue;
 518                         }
 519
 520
 521
 522
 523                         if (Lang.isKeyword(leftv) || Lang.isBuiltin(leftv)) {
 524                                 left = "'" + leftv + "'";
 525                         } else if (Regex.match_simple("[^A-Za-z_]+",leftv)) { // not plain a-z... - quoted.
 526                                 var val = this.node.quoteString(leftv);
 527
 528                                 left = "'" + val.substring(1, val.length-2).replace("'", "\\'") + "'";
 529                         } else {
 530                                 left = leftv;
 531                         }
 532
 533
 534                         // next.. is it a function.. or a raw string..
 535                         if (
 536                                 kflag == "|"
 537                                 ||
 538                                 kflag == "$"
 539                                 ||
 540                                 ktype == "function"
 541
 542                                 // ??? any others that are raw output..
 543                                 ) {
 544                                 // does not hapepnd with arrays..
 545                                 if (v.length < 1) {  //if (typeof(el) == 'string' && !obj[i].length) { //skip empty.
 546                                         continue;
 547                                 }
 548                                 /*
 549                                 print(v);
 550                                 string str = "";
 551                                 try {
 552                                         str = func_regex.replace(v,v.length, 0, "");
 553                                 } catch(Error e) {
 554                                         print("regex failed");
 555                                         return "";
 556                                 }
 557                                 */
 558                                 var str = v.strip();
 559
 560                                 var lines = str.split("\n");
 561                                 var nstr = "" + str;
 562                                 if (lines.length > 0) {
 563                                         nstr =  string.joinv("\n" + this.pad, lines);
 564                                         //nstr =  string.joinv("\n", lines);
 565                                 }
 566                                 this.out_props.set(left, nstr);
 567                                 //print("==> " +  str + "\n");
 568                                 //this.els.add(left + " : "+  nstr);
 569                                 continue;
 570                         }
 571                         // standard..
 572
 573
 574                         if (
 575                                 Lang.isNumber(v)
 576                                 ||
 577                                 Lang.isBoolean(v)
 578                                 ||
 579                                 ktype.down() == "boolean"
 580                                 ||
 581                                 ktype.down() == "bool"
 582                                 ||
 583                                 ktype.down() == "number"
 584                                 ||
 585                                 ktype.down() == "int"
 586                             ) { // boolean or number...?
 587                             this.out_props.set(left, v.down());
 588                                 //this.els.add(left + " : " + v.down() );
 589                                 continue;
 590                         }
 591
 592                         // is it a translated string?
 593
 594
 595
 596
 597                         // strings..
 598                         //if (this.doubleStringProps.size < 1) {
 599                         //      this.els.add(left + this.node.quoteString(v));
 600                         //      continue;
 601                         //}
 602
 603                         if ((this.doubleStringProps.index_of(k) > -1) ||
 604                                 (ktype.down() == "string" && k[0] == '_')
 605
 606                         ) {
 607                                 // then use the translated version...
 608
 609                                 var com = " /* " +
 610                                         (v.split("\n").length > 1 ?
 611                                                 ("\n" + this.pad +  string.joinv(this.pad +  "\n", v.split("\n")).replace("*/", "* - /") + "\n" + this.pad + "*/ ") :
 612                                                 (v.replace("*/", "* - /") + " */")
 613                                         );
 614
 615                                 //this.els.add(left + " : _this._strings['" +
 616                                 //      GLib.Checksum.compute_for_string (ChecksumType.MD5, v) +
 617                                 //      "']"
 618                                 //);
 619                                 this.out_props.set(left, "_this._strings['" +
 620                                         GLib.Checksum.compute_for_string (ChecksumType.MD5, v.strip()) +
 621                                         "']" + com);
 622                                 continue;
 623                         }
 624
 625                         // otherwise it needs to be encapsulated.. as single quotes..
 626
 627                         var vv = this.node.quoteString(v);
 628                         // single quote.. v.substring(1, v.length-1).replace("'", "\\'") + "'";
 629                         //this.els.add(left + " : " +  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 630                         this.out_props.set(left,  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 631
 632
 633
 634
 635                 }
 636         }
 637
 638         public void readListeners()
 639         {
 640
 641                 if (this.node.listeners.size < 1) {
 642                         return;
 643                 }
 644                 // munge the listeners.
 645                 //print("ADDING listeners?");
 646
 647
 648
 649
 650                 var keys = new Gee.ArrayList<string>();
 651                 var piter = this.node.listeners.map_iterator();
 652                 while (piter.next() ) {
 653
 654                         keys.add(piter.get_key());
 655                 }
 656                 keys.sort((  a,  b) => {
 657                         return ((string)a).collate((string)b);
 658                         //if (a == b) return 0;
 659                         //return a < b ? -1 : 1;
 660                 });
 661
 662
 663                 for (var i = 0; i< keys.size; i++) {
 664                         var key = keys.get(i);
 665                         var val = this.node.listeners.get(key);
 666
 667
 668                          //
 669                         var str = val.strip();
 670                         var lines = str.split("\n");
 671                         if (lines.length > 0) {
 672                                 //str = string.joinv("\n" + this.pad + "           ", lines);
 673                                 str = string.joinv("\n" + this.pad + indent_str + indent_str , lines);
 674                         }
 675
 676                         this.out_listeners.set(key.replace("|", "") ,str);
 677
 678
 679                 }
 680
 681
 682
 683         }
 684
 685         public void iterChildren()
 686         {
 687
 688
 689                 // finally munge the children...
 690                 if (this.node.items.size < 1) {
 691                         return;
 692                 }
 693                 var itms = "items : [\n";
 694                 //var n = 0;
 695                 for(var i = 0; i < this.node.items.size;i++) {
 696                         var ele = this.node.items.get(i);
 697                         if (ele.props.has_key("* prop")) {
 698                                 continue;
 699                         }
 700
 701                         this.out_children.add(ele);
 702
 703                 }
 704                 itms +=  "\n"+  this.pad + "]"  + "\n";
 705                 //this.els.add(itms);
 706         }
 707
 708                 // finally output listeners...
 709
 710         public void xIncludeToString()
 711         {
 712
 713
 714         }
 715
 716 }
 717
 718
 719
 720