git.roojs.org Git - app.Builder.js/blob - src/JsRender/NodeToGtk.vala

   1 /*
   2
   3 * This code renders the Gtk tree into a set of Gtk elements.
   4 * principle = one NodeToGtk wraps around the original 'node'
   5 *
   6 * it's called by the view element with
   7 *       var x = new JsRender.NodeToGtk(file.tree);
   8      var obj = x.munge() as Gtk.Widget;
   9
  10 *
  11 *
  12 * The idea behind the Javascript tools stuff is that we can
  13 * transform what is actually being requested to be rendered
  14 * -- eg. an AboutBox, and turn that into load of real widgets..
  15 * that could be displayed..
  16 *
  17 * we could go on the theory that we send the whole tree to the 'plugin'
  18 * and that would do all the transformations before rendering..
  19 * -- this would make more sense...
  20 * -- otherwise we would call it on each element, and might get really confused
  21 * about scope etc..
  22 *
  23 *
  24 *
  25 */
  26 public class JsRender.NodeToGtk : Object {
  27
  28         Node node;
  29         Object wrapped_object;
  30         NodeToGtk parentObj;
  31
  32         Gee.ArrayList<NodeToGtk> children;
  33
  34         Gee.ArrayList<string> els;
  35         //Gee.ArrayList<string> skip;
  36         Gee.HashMap<string,string> ar_props;
  37         public static int vcnt = 0;
  38
  39         public NodeToGtk( Node node , NodeToGtk? parent_obj = null)
  40         {
  41                 this.node = node;
  42                 this.els = new Gee.ArrayList<string>();
  43                 this.children = new Gee.ArrayList<NodeToGtk>();
  44                 //this.skip = new Gee.ArrayList<string>();
  45                 this.ar_props = new Gee.HashMap<string,string>();
  46                 this.parentObj = parent_obj;
  47
  48                 if (parent_obj == null) {
  49                         // then serialize up the node,
  50                         // send it to javascript for processsing,
  51                         // then rebuild node from return value..
  52                         try {
  53                                 var ret = Palete.Javascript.singleton().executeFile(
  54                                                 BuilderApplication.configDirectory() + "/resources/node_to_gtk.js",
  55                                                 "node_to_gtk",
  56                                                 node.toJsonString()
  57                                 );
  58                                 var new_node = new Node();
  59                                 var pa = new Json.Parser();
  60                                 pa.load_from_data(ret);
  61                                 var rnode = pa.get_root();
  62
  63
  64                                 new_node.loadFromJson(rnode.get_object(), 2);
  65                                 this.node = new_node;
  66
  67                         } catch (Palete.JavascriptError e) {
  68                                 print("Error: %s\n", e.message);
  69                         }
  70
  71
  72                 }
  73
  74         }
  75
  76         public Object? munge ( )
  77         {
  78                 var ret = this.mungeNode();
  79                 if (ret == null) {
  80                         return null;
  81                 }
  82
  83                 return ret.wrapped_object;
  84
  85         }
  86         public NodeToGtk? mungeChild(  Node cnode)
  87         {
  88                 var x = new  NodeToGtk(cnode, this);
  89
  90                 return x.mungeNode();
  91
  92         }
  93
  94         public NodeToGtk? mungeNode()
  95         {
  96
  97                 var parent = this.parentObj != null ? this.parentObj.wrapped_object : null;
  98                 var cls = this.node.fqn().replace(".", "");
  99                 var ns = this.node.fqn().split(".")[0];
 100                 var gtkbuilder = new global::Gtk.Builder();
 101
 102                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
 103                 print("Type: %s ?= %s\n", this.node.fqn(), cls_gtype.name());
 104
 105                 if (cls_gtype == GLib.Type.INVALID) {
 106                         print("SKIP - gtype is invalid\n");
 107                         return null;
 108                 }
 109                 // if it's a window...  -- things we can not render....
 110
 111                 if (cls_gtype.is_a(typeof(global::Gtk.Window))) {
 112                         // what if it has none...
 113                         if (this.node.items.size < 1) {
 114                                 return null;
 115                         }
 116                         return this.mungeChild(this.node.items.get(0));
 117                 }
 118                 if (cls_gtype.is_a(typeof(global::Gtk.Popover))) {
 119                         // what if it has none...
 120                         if (this.node.items.size < 1) {
 121                                 return null;
 122                         }
 123                         return this.mungeChild(this.node.items.get(0));
 124                 }
 125
 126                 var ret = Object.new(cls_gtype);
 127                 ret.ref(); //??? problematic?
 128                 this.wrapped_object = ret;
 129
 130
 131                 switch(cls) {
 132                         // fixme
 133                         //case "GtkTreeStore": // top level.. - named and referenced
 134                         case "GtkListStore": // top level.. - named and referenced
 135                         //case "GtkTreeViewColumn": // part of liststore?!?!
 136                         //case "GtkMenu": // top level..
 137                         //case "GtkCellRendererText":
 138                         case "GtkSourceBuffer":
 139                         case "GtkClutterActor"://fixme..
 140                         case "GtkClutterEmbed"://fixme.. -- we can not nest embedded.. need to solve..
 141
 142                                 return null;
 143                 }
 144
 145                 this.packParent();
 146
 147
 148                 // pack paramenters
 149
 150
 151                 if (parent != null && parent.get_type().is_a(typeof(global::Gtk.Container))) {
 152                         this.packContainerParams();
 153                 }
 154
 155                 var cls_gir =Palete.Gir.factoryFqn(this.node.fqn());
 156                 if (cls_gir == null) {
 157                         return null;
 158                 }
 159                 //var id = this.node.uid();
 160                 //var ret = @"$pad<object class=\"$cls\" id=\"$id\">\n";
 161                 // properties..
 162                 var props = cls_gir.props;
 163
 164
 165                 var pviter = props.map_iterator();
 166                 while (pviter.next()) {
 167
 168                                 // print("Check: " +cls + "::(" + pviter.get_value().propertyof + ")" + pviter.get_key() + " " );
 169                         var k = pviter.get_key();
 170                         // skip items we have already handled..
 171                         if  (!this.node.has(k)) {
 172                                 continue;
 173                         }
 174                         // find out the type of the property...
 175                         var type = pviter.get_value().type;
 176                         type = Palete.Gir.fqtypeLookup(type, ns);
 177
 178                         var  ocl = (ObjectClass) cls_gtype.class_ref ();
 179                         var ps = ocl.find_property(k);
 180
 181                         // attempt to read property type and enum...
 182
 183                         if (ps != null) {
 184                                 var vt = ps.value_type;
 185                                 if (vt.is_enum()) {
 186
 187                                         var raw_val = this.node.get(k).strip();
 188                                         var rv_s = raw_val.split(".")
 189                                         if (rv_s.length > 0) {
 190                                                 raw_val = rv_s[rv_s.length-1];
 191                                                 EnumClass ec = (EnumClass) vt.class_ref ();
 192                                                 for (var i =0;i< ec.n_values; i++) {
 193                                                         var ev = ec.values[i];
 194                                                         var ev_s= ev.split("_");
 195                                                         if (raw_val == ev_s[ev_s.length-1]) {
 196                                                                 var sval = GLib.Value(typeof(int));
 197                                                                 sval.set_int(int.parse(val));
 198                                                                 ret.set_property(k, sval);
 199                                                                 continue;
 200                                                         }
 201                                                 }
 202                                         }
 203                                 }
 204                         }
 205
 206
 207
 208
 209                         var val = this.toValue(this.node.get(k).strip(), type);
 210                         if (val == null) {
 211                                 print("skip (failed to transform value %s type = %s from %s\n",
 212                                         cls + "." + k, type,  this.node.get(k).strip());
 213                                 continue;
 214                         }
 215                         print ("set_property ( %s , %s / %s)\n", k, this.node.get(k).strip(), val.strdup_contents());
 216
 217
 218                         ret.set_property(k, val);
 219
 220
 221                 }
 222                 // packing???
 223                 // for now... - just try the builder style packing
 224
 225
 226
 227                 if (this.node.items.size < 1) {
 228                         return this;
 229                 }
 230
 231                 for (var i = 0; i < this.node.items.size; i++ ) {
 232
 233                          var ch = this.mungeChild(this.node.items.get(i));
 234                          if (ch != null) {
 235                                  this.children.add(ch);
 236                          }
 237
 238                 }
 239
 240                 this.afterChildren();
 241
 242                 return this;
 243
 244
 245
 246
 247         }
 248
 249         public void  afterChildren()
 250         {
 251                 // things like GtkNotebook - we have to pack children after they have been created..
 252                 var cls = this.node.fqn().replace(".", "");
 253
 254                 if (cls == "GtkNotebook") {
 255                         this.afterChildrenGtkNotebook();
 256                 }
 257
 258
 259
 260         }
 261
 262         public void  afterChildrenGtkNotebook()
 263         {
 264                 // we have a number of children..
 265                 // some are labels - this might need to be more complex...
 266                 // perhaps labels should be a special property labels[] of the notebook..
 267                 var labels = new Gee.ArrayList<NodeToGtk>();
 268                 var bodies = new Gee.ArrayList<NodeToGtk>();
 269                 for (var i = 0; i < this.children.size; i++) {
 270                         var cn = this.children.get(i).node.fqn().replace(".", "");
 271                         if (cn != "GtkLabel") {
 272                                 bodies.add(this.children.get(i));
 273                                 continue;
 274                         }
 275                         labels.add(this.children.get(i));
 276                 }
 277                 for (var i = 0; i < bodies.size; i++) {
 278                         ((global::Gtk.Notebook)this.wrapped_object).append_page(
 279                                  (global::Gtk.Notebook) bodies.get(i).wrapped_object,
 280                                  (labels.size > i - 1) ?
 281                                         (global::Gtk.Notebook) labels.get(i).wrapped_object :
 282                                         null
 283
 284                         );
 285
 286
 287                 }
 288
 289
 290         }
 291
 292
 293         /**
 294          * called after the this.object  has been created
 295          * and it needs to be packed onto parent.
 296          */
 297         public void packParent()
 298         {
 299                 var cls = this.node.fqn().replace(".", "");
 300
 301                 var gtkbuilder = new global::Gtk.Builder();
 302                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
 303
 304                 if (this.parentObj == null) {
 305                         return;
 306                 }
 307
 308
 309                 var parent = this.parentObj.wrapped_object;
 310
 311                 var do_pack =true;
 312
 313                 if (parent == null) { // no parent.. can not pack.
 314                         return; ///
 315                 }
 316                 // -------------  handle various special parents .. -----------
 317
 318                 var par_type = this.parentObj.node.fqn().replace(".", "");
 319
 320                 if (par_type == "GtkNotebook") {
 321                         // do not pack - it's done afterwards...
 322                         return;
 323                 }
 324
 325                 // -------------  handle various child types.. -----------
 326                 // our overrides
 327                 if (cls == "GtkMenu") {
 328                         this.packMenu();
 329                         return;
 330                 }
 331
 332                 if (cls == "GtkTreeStore") { // other stores?
 333                         // tree store is buildable??? ---
 334                         this.packTreeStore();
 335                         return;
 336                 }
 337                 if (cls =="GtkTreeViewColumn") { // other stores?
 338                         //?? treeview column is actually buildable -- but we do not use the builder???
 339                         this.packTreeViewColumn();
 340                         return;
 341                 }
 342                 if (cls_gtype.is_a(typeof(global::Gtk.CellRenderer))) { // other stores?
 343                         this.packCellRenderer();
 344                         return;
 345                 }
 346
 347
 348
 349                 // -- handle buildable add_child..
 350                 if (    cls_gtype.is_a(typeof(global::Gtk.Buildable))
 351                      &&
 352                         parent.get_type().is_a(typeof(global::Gtk.Buildable))
 353                 )
 354                 {
 355                         ((global::Gtk.Buildable)parent).add_child(gtkbuilder,
 356                                                   this.wrapped_object, null);
 357                         return;
 358                 }
 359                 // other packing?
 360
 361
 362
 363         }
 364
 365         public void packMenu()
 366         {
 367
 368
 369                 var parent = this.parentObj.wrapped_object;
 370                 if (!parent.get_type().is_a(typeof(global::Gtk.Widget))) {
 371                         print("skip menu pack - parent is not a widget");
 372                         return;
 373                 }
 374
 375                 var p = (global::Gtk.Menu)this.wrapped_object;
 376                 ((global::Gtk.Widget)parent).button_press_event.connect((s, ev) => {
 377                         p.set_screen(Gdk.Screen.get_default());
 378                         p.show_all();
 379                         p.popup(null, null, null, ev.button, ev.time);
 380                         return true;
 381                 });
 382         }
 383
 384         public void packTreeStore()
 385         {
 386                 var parent = this.parentObj.wrapped_object;
 387                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 388                         print("skip treestore pack - parent is not a treeview");
 389                         return;
 390                 }
 391                 ((global::Gtk.TreeView)parent).set_model((global::Gtk.TreeModel)this.wrapped_object);
 392
 393         }
 394         public void packTreeViewColumn()
 395         {
 396                 var parent = this.parentObj.wrapped_object;
 397                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 398                         print("skip packGtkViewColumn pack - parent is not a treeview");
 399                         return;
 400                 }
 401                 ((global::Gtk.TreeView)parent).append_column((global::Gtk.TreeViewColumn)this.wrapped_object);
 402                 // init contains the add_attribute for what to render...
 403
 404         }
 405
 406
 407         public void packCellRenderer()
 408         {
 409                 var parent = this.parentObj.wrapped_object;
 410                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeViewColumn))) {
 411                         print("skip packGtkViewColumn pack - parent is not a treeview");
 412                         return;
 413                 }
 414                 ((global::Gtk.TreeViewColumn)parent).pack_start((global::Gtk.CellRenderer)this.wrapped_object, false);
 415                 // init contains the add_attribute for what to render...
 416
 417         }
 418
 419
 420         public void packContainerParams()
 421         {
 422
 423                 if (this.parentObj == null) {
 424                         return;
 425                 }
 426                 // child must be a widget..
 427                 if (!this.wrapped_object.get_type().is_a(typeof(global::Gtk.Widget))) {
 428                         return;
 429                 }
 430
 431                 var parent_gir = Palete.Gir.factoryFqn(this.parentObj.node.fqn());
 432
 433                 var parent = this.parentObj.wrapped_object;
 434
 435                 if (parent_gir == null) {
 436                         return;
 437                 }
 438
 439                 // let's test just setting expand to false...
 440                 var cls_methods = parent_gir.methods;
 441                 if (cls_methods == null) {
 442                         return;
 443                 }
 444
 445                 if (!this.node.props.has_key("* pack") ||
 446                                 this.node.props.get("* pack").length < 1) {
 447                         return;
 448                 }
 449
 450                 var ns = this.parentObj.node.fqn().split(".")[0];
 451
 452                 var pack = this.node.props.get("* pack").split(",");
 453
 454
 455                 if (cls_methods.has_key(pack[0])) {
 456                         var mparams = cls_methods.get(pack[0]).paramset.params;
 457                         for (var i = 1; i < mparams.size; i++ ) {
 458                                 if (i > (pack.length -1)) {
 459                                         continue;
 460                                 }
 461
 462                                 var k = mparams.get(i).name;
 463
 464                                 Value cur_val;
 465
 466                                 var type = mparams.get(i).type;
 467                                 type = Palete.Gir.fqtypeLookup(type, ns);
 468
 469                                 var val = this.toValue(pack[i].strip(), type);
 470                                 if (val == null) {
 471                                         print("skip (failed to transform value %s type = %s from %s\n",
 472                                                 this.parentObj.node.fqn()  + "." + k, type, pack[i].strip());
 473                                         continue;
 474                                 }
 475                                 print ("pack:set_property ( %s , %s / %s)\n", k, pack[i].strip(), val.strdup_contents());
 476
 477                                 ((global::Gtk.Container)parent).child_set_property(
 478                                         (global::Gtk.Widget)this.wrapped_object , k, val);
 479
 480                         }
 481
 482                 }
 483
 484
 485
 486
 487         }
 488
 489
 490         public GLib.Value? toValue(string val, string type) {
 491
 492
 493                 /*
 494                 if (type == "string") {
 495                         var qret = GLib.Value(typeof(string));
 496                         qret.set_string(val);
 497                         return qret;
 498                 }
 499                 * */
 500                 /*
 501                  *
 502            * var gtkbuilder = new global::Gtk.Builder();
 503                 var prop_gtype = gtkbuilder.get_type_from_name(type);
 504
 505
 506                 if (prop_gtype == GLib.Type.INVALID) {
 507
 508                         return null;
 509                 }
 510                 */
 511
 512
 513
 514
 515                 switch(type) {
 516                         case "bool":
 517                                 var ret = GLib.Value(typeof(bool));
 518                                 ret.set_boolean(val.down() == "false" ? false : true);
 519                                 return ret;
 520
 521                         case "uint":
 522                                 var ret = GLib.Value(typeof(uint));
 523                                 ret.set_uint(int.parse(val));
 524                                 return ret;
 525
 526                         case "int":
 527                                 var ret = GLib.Value(typeof(int));
 528                                 ret.set_int(int.parse(val));
 529                                 return ret;
 530
 531                         // uint64 ...??
 532
 533                         case "long":
 534                                 var ret = GLib.Value(typeof(long));
 535                                 ret.set_long((long)int64.parse(val));
 536                                 return ret;
 537
 538                         case "ulong":
 539                                 var ret = GLib.Value(typeof(ulong));
 540                                 ret.set_ulong((ulong) uint64.parse(val));
 541                                 return ret;
 542
 543                         case "float":
 544                                 var ret = GLib.Value(typeof(float));
 545                                 ret.set_float((float)double.parse(val));
 546                                 return ret;
 547
 548                         case "string":
 549                                 var ret = GLib.Value(typeof(string));
 550                                 ret.set_string(val);
 551                                 return ret;
 552
 553                         default:
 554                                 return null;
 555                                 /*
 556                                 var sval =  GLib.Value(typeof(string));
 557                                 sval.set_string(val);
 558
 559                                 if (!sval.transform(ref ret)) {
 560
 561                                         return null;
 562                                 }
 563                                 return ret;
 564                                 */
 565                 }
 566                 // should not get here..
 567                 return null;
 568         }
 569
 570
 571
 572
 573 }