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(), {",0 );
 171
 172                 } else {
 173                         this.addLine("{", 0);
 174                 }
 175                 var suffix = "";
 176                 // output the items...
 177                 // work out remaining items...
 178
 179
 180                 // plain properties.
 181                 var iter = this.orderedPropKeys().list_iterator();
 182                 while(iter.next()) {
 183
 184
 185                         var k = iter.get();
 186                         var v = this.out_props.get(k);
 187                         this.node.setLine(this.cur_line, "p",k); //listener
 188                         this.addLine(this.pad + k + " : " + v + suffix, ',');
 189                         this.node.setLine(this.cur_line, "e", "");
 190
 191                 }
 192
 193                 // listeners..
 194
 195                 if (this.out_listeners.size > 0 ) {
 196
 197                         this.addLine(this.pad + "listeners : {", 0);
 198                         iter = this.orderedListenerKeys().list_iterator();
 199
 200                         while(iter.next()) {
 201
 202                                 var k = iter.get();
 203                                 var v = this.out_listeners.get(k);
 204                                 this.node.setLine(this.cur_line, "l",k); //listener
 205                                 this.addLine(this.pad + indent_str + k + " : " + v , ',');
 206                                 this.node.setLine(this.cur_line, "e", "");
 207                         }
 208
 209                         this.closeLine();
 210                         this.addLine(this.pad + "}" ,',');
 211
 212                 }
 213
 214                 //------- at this point it is the end of the code relating directly to the object..
 215
 216
 217
 218                 this.node.line_end = this.cur_line;
 219
 220                 // * prop
 221
 222                 var niter = this.out_nodeprops.map_iterator();
 223
 224                 while(niter.next()) {
 225                         var addstr = this.mungeChildNew(this.pad + indent_str, niter.get_value());
 226                         this.node.setLine(this.cur_line, "p",niter.get_key());
 227                         this.addLine(this.pad + niter.get_key() + " : " + addstr, ',');
 228                         if (niter.get_key() == "xns") {
 229                                 this.addLine(this.pad + "'|xns' : '" + addstr + "'", ',');
 230
 231                         }
 232                         this.node.setLine(this.cur_line, "e", "");
 233                 }
 234                 // prop arrays...
 235
 236                 var piter = this.out_props_array.map_iterator();
 237
 238                 while(piter.next()) {
 239                         this.node.setLine(this.cur_line, "p",niter.get_key());
 240                         this.addLine(this.pad + piter.get_key() + " : [", 0);
 241
 242                         var pliter = piter.get_value().list_iterator();
 243                         while (pliter.next()) {
 244                                 var addstr = this.mungeChildNew(this.pad + indent_str  + indent_str, pliter.get());
 245                                 this.addLine(this.pad + indent_str + addstr, ',');
 246                                 this.node.setLine(this.cur_line, "e", "");
 247                         }
 248                         this.closeLine();
 249                         this.addLine(this.pad + "]" , ',');
 250                 }
 251
 252                 // children..
 253                 if (this.out_children.size > 0) {
 254                         this.addLine(this.pad + "items  : [" , 0);
 255                         var cniter = this.out_children.list_iterator();
 256                         while (cniter.next()) {
 257                                 suffix = cniter.has_next()  ? "," : "";
 258                                 var addstr = this.mungeChildNew(this.pad + indent_str  + indent_str, cniter.get());
 259                                 this.addLine(this.pad + indent_str + addstr, ',');
 260                                 this.node.setLine(this.cur_line, "e", "");
 261
 262                         }
 263                         this.closeLine();
 264                         this.addLine(this.pad +   "]",',');
 265                 }
 266                 this.node.setLine(this.cur_line, "e", "");
 267                 this.closeLine();
 268                 if (this.node.props.has_key("* xinclude")) {
 269                         this.addLine(spad + "})",0);
 270
 271                 } else {
 272                         this.addLine( spad + "}", 0);
 273                 }
 274
 275                 this.node.sortLines();
 276
 277
 278
 279                 return this.ret;
 280
 281         }
 282
 283         /**
 284         * Line endings
 285         *     if we end with a ','
 286         *
 287         */
 288
 289         char last_line_end = '!';
 290
 291         /**
 292         * add a line - note we will end up with an extra line break
 293         *     at beginning of nodes doing this..
 294         *
 295         * @param str = text to add..
 296         * @param line_end = 0  (just add a line break)
 297         *        line_end = ','  and ","
 298         *
 299         */
 300         public void addLine(string str, char line_end)
 301         {
 302                 if (this.last_line_end != '!') {
 303                         this.ret += (this.last_line_end == 0 ? "" : this.last_line_end.to_string()) + "\n";
 304                 }
 305                 this.last_line_end = line_end;
 306                 this.cur_line += str.split("\n").length;
 307                 this.ret += str;
 308
 309
 310                 //this.ret +=  "/*%d(%d-%d)*/ ".printf(this.cur_line -1, this.node.line_start,this.node.line_end) + str + "\n";
 311
 312
 313         }
 314         public void closeLine() // send this before '}' or ']' to block output of ',' ...
 315         {
 316                 this.last_line_end = 0;
 317         }
 318
 319 /*      public void addMultiLine(str= "")
 320         {
 321
 322                 //this.ret +=   "/ * %d(%d-%d) * / ".printf(this.cur_line, this.node.line_start,this.node.line_end)+ str + "\n";
 323                 this.ret +=   str + "\n";
 324                 this.cur_line += str.split("\n").length;
 325         }
 326  */
 327         public string mungeChildNew(string pad ,  Node cnode )
 328         {
 329                 var x = new  NodeToJs(cnode, this.doubleStringProps, pad, this);
 330
 331                 x.munge();
 332                 return x.ret;
 333         }
 334
 335         /**
 336         * loop through items[] array see if any of the children have '* prop'
 337         * -- which means they are a property of this node.
 338         * -- ADD TO : this.opt_props_array
 339         *
 340         */
 341
 342         public void checkChildren ()
 343         {
 344
 345
 346                 // look throught he chilren == looking for * prop.. -- fixme might not work..
 347
 348
 349                 if (!this.node.hasChildren()) {
 350                         return;
 351                 }
 352                 // look for '*props'
 353
 354                 for (var ii =0; ii< this.node.items.size; ii++) {
 355                         var pl = this.node.items.get(ii);
 356                         if (!pl.props.has_key("* prop")) {
 357                                 //newitems.add(pl);
 358                                 continue;
 359                         }
 360
 361                         //print(JSON.stringify(pl,null,4));
 362                         // we have a prop...
 363                         //var prop = pl['*prop'] + '';
 364                         //delete pl['*prop'];
 365                         var prop = pl.get("* prop");
 366                         //print("got prop "+ prop + "\n");
 367
 368                         // name ends in [];
 369                         if (! Regex.match_simple("\\[\\]$", prop)) {
 370                                 // it's a standard prop..
 371
 372                                 // munge property..??
 373
 374                                 this.out_nodeprops.set(prop, pl);
 375
 376                                 continue;
 377                         }
 378
 379
 380
 381
 382                         var sprop  = prop.replace("[]", "");
 383                         //print("sprop is : " + sprop + "\n");
 384
 385                         // it's an array type..
 386                         //var old = "";
 387                         if (!this.out_props_array.has_key(sprop)) {
 388                                 this.out_props_array.set(sprop, new Gee.ArrayList<Node>());
 389                         }
 390
 391
 392                         this.out_props_array.get(sprop).add( pl);
 393                         //this.ar_props.set(sprop, nstr);
 394
 395
 396                 }
 397
 398         }
 399         /*
 400  * Standardize this crap...
 401  *
 402  * standard properties (use to set)
 403  *          If they are long values show the dialog..
 404  *
 405  * someprop : ....
 406  * bool is_xxx  :: can show a pulldown.. (true/false)
 407  * string html
 408  * $ string html  = string with value interpolated eg. baseURL + ".."
 409  *  Clutter.ActorAlign x_align  (typed)  -- shows pulldowns if type is ENUM?
 410  * $ untypedvalue = javascript untyped value...
 411  * _ string html ... = translatable..
 412
 413  *
 414  * object properties (not part of the GOjbect being wrapped?
 415  * # Gee.ArrayList<Xcls_fileitem> fileitems
 416  *
 417  * signals
 418  * @ void open
 419  *
 420  * methods -- always text editor..
 421  * | void clearFiles
 422  * | someJSmethod
 423  *
 424  * specials
 425  * * prop -- string
 426  * * args  -- string
 427  * * ctor -- string
 428  * * init -- big string?
 429  *
 430  * event handlers (listeners)
 431  *   just shown
 432  *
 433  * -----------------
 434  * special ID values
 435  *  +XXXX -- indicates it's a instance property / not glob...
 436  *  *XXXX -- skip writing glob property (used as classes that can be created...)
 437  *
 438  *
 439  */
 440         public void readProps()
 441         {
 442                 string left;
 443                 Regex func_regex ;
 444
 445                 try {
 446                         func_regex = new Regex("^\\s+|\\s+$");
 447                 } catch (RegexError e) {
 448                         print("failed to build regex");
 449                         return;
 450                 }
 451                 // sort the key's so they always get rendered in the same order..
 452
 453                 var keys = new Gee.ArrayList<string>();
 454                 var piter = this.node.props.map_iterator();
 455                 while (piter.next() ) {
 456                         string k;
 457                         string ktype;
 458                         string kflag;
 459                         this.node.normalize_key(piter.get_key(), out k, out kflag, out ktype);
 460
 461                         keys.add(k);
 462                 }
 463
 464                 keys.sort((  a,  b) => {
 465                         return ((string)a).collate((string)b);
 466                         //if (a == b) return 0;
 467                         //return a < b ? -1 : 1;
 468                 });
 469
 470                 var has_cms = this.node.has("cms-id");
 471
 472                 for (var i = 0; i< keys.size; i++) {
 473                         var key = this.node.get_key(keys.get(i));
 474                         //("ADD KEY %s\n", key);
 475                         string k;
 476                         string ktype;
 477                         string kflag;
 478
 479                         this.node.normalize_key(key, out k, out kflag, out ktype);
 480
 481
 482                         var v = this.node.get(key);
 483
 484
 485                         //if (this.skip.contains(k) ) {
 486                         //      continue;
 487                         //}
 488                         if (  Regex.match_simple("\\[\\]$", k)) {
 489                                 // array .. not supported... here?
 490
 491
 492                         }
 493
 494                         string leftv = k;
 495                         // skip builder stuff. prefixed with  '.' .. just like unix fs..
 496                         if (kflag == ".") { // |. or . -- do not output..
 497                                 continue;
 498                         }
 499                         if (kflag == "*") {
 500                                 // ignore '* prop'; ???
 501                                 continue;
 502                         }
 503
 504                         // handle cms-id // html
 505                         if (has_cms && k == "cms-id") {
 506                                 continue; // ignore it...
 507                         }
 508                         // html must not be a dynamic property...
 509                         // note - we do not translate this either...
 510                         if (has_cms && k == "html" && kflag != "$") {
 511
 512
 513                                 this.out_props.set("html", "Pman.Cms.content(" +
 514                                         this.node.quoteString(this.renderer.name + "::" + this.node.get("cms-id")) +
 515                                          ", " +
 516                                         this.node.quoteString(v) +
 517                                          ")");
 518
 519                                 continue;
 520                         }
 521
 522
 523
 524
 525                         if (Lang.isKeyword(leftv) || Lang.isBuiltin(leftv)) {
 526                                 left = "'" + leftv + "'";
 527                         } else if (Regex.match_simple("[^A-Za-z_]+",leftv)) { // not plain a-z... - quoted.
 528                                 var val = this.node.quoteString(leftv);
 529
 530                                 left = "'" + val.substring(1, val.length-2).replace("'", "\\'") + "'";
 531                         } else {
 532                                 left = leftv;
 533                         }
 534
 535
 536                         // next.. is it a function.. or a raw string..
 537                         if (
 538                                 kflag == "|"
 539                                 ||
 540                                 kflag == "$"
 541                                 ||
 542                                 ktype == "function"
 543
 544                                 // ??? any others that are raw output..
 545                                 ) {
 546                                 // does not hapepnd with arrays..
 547                                 if (v.length < 1) {  //if (typeof(el) == 'string' && !obj[i].length) { //skip empty.
 548                                         continue;
 549                                 }
 550                                 /*
 551                                 print(v);
 552                                 string str = "";
 553                                 try {
 554                                         str = func_regex.replace(v,v.length, 0, "");
 555                                 } catch(Error e) {
 556                                         print("regex failed");
 557                                         return "";
 558                                 }
 559                                 */
 560                                 var str = v.strip();
 561
 562                                 var lines = str.split("\n");
 563                                 var nstr = "" + str;
 564                                 if (lines.length > 0) {
 565                                         nstr =  string.joinv("\n" + this.pad, lines);
 566                                         //nstr =  string.joinv("\n", lines);
 567                                 }
 568                                 this.out_props.set(left, nstr);
 569
 570
 571
 572
 573
 574                                 //print("==> " +  str + "\n");
 575                                 //this.els.add(left + " : "+  nstr);
 576                                 continue;
 577                         }
 578                         // standard..
 579
 580
 581                         if (
 582                                 Lang.isNumber(v)
 583                                 ||
 584                                 Lang.isBoolean(v)
 585                                 ||
 586                                 ktype.down() == "boolean"
 587                                 ||
 588                                 ktype.down() == "bool"
 589                                 ||
 590                                 ktype.down() == "number"
 591                                 ||
 592                                 ktype.down() == "int"
 593                             ) { // boolean or number...?
 594                             this.out_props.set(left, v.down());
 595                                 //this.els.add(left + " : " + v.down() );
 596                                 continue;
 597                         }
 598
 599                         // is it a translated string?
 600
 601
 602
 603
 604                         // strings..
 605                         //if (this.doubleStringProps.size < 1) {
 606                         //      this.els.add(left + this.node.quoteString(v));
 607                         //      continue;
 608                         //}
 609
 610                         if ((this.doubleStringProps.index_of(k) > -1) ||
 611                                 (ktype.down() == "string" && k[0] == '_')
 612
 613                         ) {
 614                                 // then use the translated version...
 615
 616                                 var com = " /* " +
 617                                         (v.split("\n").length > 1 ?
 618                                                 ("\n" + this.pad +  string.joinv(this.pad +  "\n", v.split("\n")).replace("*/", "* - /") + "\n" + this.pad + "*/ ") :
 619                                                 (v.replace("*/", "* - /") + " */")
 620                                         );
 621
 622                                 //this.els.add(left + " : _this._strings['" +
 623                                 //      GLib.Checksum.compute_for_string (ChecksumType.MD5, v) +
 624                                 //      "']"
 625                                 //);
 626                                 this.out_props.set(left, "_this._strings['" +
 627                                         GLib.Checksum.compute_for_string (ChecksumType.MD5, v.strip()) +
 628                                         "']" + com);
 629                                 continue;
 630                         }
 631
 632                         // otherwise it needs to be encapsulated.. as single quotes..
 633
 634                         var vv = this.node.quoteString(v);
 635                         // single quote.. v.substring(1, v.length-1).replace("'", "\\'") + "'";
 636                         //this.els.add(left + " : " +  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 637                         this.out_props.set(left,  "'" + vv.substring(1, vv.length-2).replace("'", "\\'") + "'");
 638
 639
 640
 641
 642                 }
 643         }
 644
 645         public void readListeners()
 646         {
 647
 648                 if (this.node.listeners.size < 1) {
 649                         return;
 650                 }
 651                 // munge the listeners.
 652                 //print("ADDING listeners?");
 653
 654
 655
 656
 657                 var keys = new Gee.ArrayList<string>();
 658                 var piter = this.node.listeners.map_iterator();
 659                 while (piter.next() ) {
 660
 661                         keys.add(piter.get_key());
 662                 }
 663                 keys.sort((  a,  b) => {
 664                         return ((string)a).collate((string)b);
 665                         //if (a == b) return 0;
 666                         //return a < b ? -1 : 1;
 667                 });
 668
 669
 670                 for (var i = 0; i< keys.size; i++) {
 671                         var key = keys.get(i);
 672                         var val = this.node.listeners.get(key);
 673
 674
 675                          //
 676                         var str = val.strip();
 677                         var lines = str.split("\n");
 678                         if (lines.length > 0) {
 679                                 //str = string.joinv("\n" + this.pad + "           ", lines);
 680                                 str = string.joinv("\n" + this.pad + indent_str + indent_str , lines);
 681                         }
 682
 683                         this.out_listeners.set(key.replace("|", "") ,str);
 684
 685
 686                 }
 687
 688
 689
 690         }
 691
 692         public void iterChildren()
 693         {
 694
 695
 696                 // finally munge the children...
 697                 if (this.node.items.size < 1) {
 698                         return;
 699                 }
 700                 var itms = "items : [\n";
 701                 //var n = 0;
 702                 for(var i = 0; i < this.node.items.size;i++) {
 703                         var ele = this.node.items.get(i);
 704                         if (ele.props.has_key("* prop")) {
 705                                 continue;
 706                         }
 707
 708                         this.out_children.add(ele);
 709
 710                 }
 711                 itms +=  "\n"+  this.pad + "]"  + "\n";
 712                 //this.els.add(itms);
 713         }
 714
 715                 // finally output listeners...
 716
 717         public void xIncludeToString()
 718         {
 719
 720
 721         }
 722
 723 }
 724
 725
 726
 727