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