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 val = this.toValue(this.node.get(k).strip(), type);
 179                         if (val == null) {
 180                                 print("skip (failed to transform value %s type = %s from %s\n",
 181                                         cls + "." + k, type,  this.node.get(k).strip());
 182                                 continue;
 183                         }
 184                         print ("set_property ( %s , %s / %s)\n", k, this.node.get(k).strip(), val.strdup_contents());
 185
 186
 187                         ret.set_property(k, val);
 188
 189
 190                 }
 191                 // packing???
 192                 // for now... - just try the builder style packing
 193
 194
 195
 196                 if (this.node.items.size < 1) {
 197                         return this;
 198                 }
 199
 200                 for (var i = 0; i < this.node.items.size; i++ ) {
 201
 202                          var ch = this.mungeChild(this.node.items.get(i));
 203                          if (ch != null) {
 204                                  this.children.add(ch);
 205                          }
 206
 207                 }
 208
 209                 this.afterChildren();
 210
 211                 return this;
 212
 213
 214
 215
 216         }
 217
 218         public void  afterChildren()
 219         {
 220                 // things like GtkNotebook - we have to pack children after they have been created..
 221                 var cls = this.node.fqn().replace(".", "");
 222
 223                 if (cls == "GtkNotebook") {
 224                         this.afterChildrenGtkNotebook();
 225                 }
 226
 227
 228
 229         }
 230
 231         public void  afterChildrenGtkNotebook()
 232         {
 233                 // we have a number of children..
 234                 // some are labels - this might need to be more complex...
 235                 // perhaps labels should be a special property labels[] of the notebook..
 236                 var labels = new Gee.ArrayList<NodeToGtk>();
 237                 var bodies = new Gee.ArrayList<NodeToGtk>();
 238                 for (var i = 0; i < this.children.size; i++) {
 239                         var cn = this.children.get(i).node.fqn().replace(".", "");
 240                         if (cn != "GtkLabel") {
 241                                 bodies.add(this.children.get(i));
 242                                 continue;
 243                         }
 244                         labels.add(this.children.get(i));
 245                 }
 246                 for (var i = 0; i < bodies.size; i++) {
 247                         ((global::Gtk.Notebook)this.wrapped_object).append_page(
 248                                  (global::Gtk.Notebook) bodies.get(i).wrapped_object,
 249                                  (labels.size > i - 1) ?
 250                                         (global::Gtk.Notebook) labels.get(i).wrapped_object :
 251                                         null
 252
 253                         );
 254
 255
 256                 }
 257
 258
 259         }
 260
 261
 262         /**
 263          * called after the this.object  has been created
 264          * and it needs to be packed onto parent.
 265          */
 266         public void packParent()
 267         {
 268                 var cls = this.node.fqn().replace(".", "");
 269
 270                 var gtkbuilder = new global::Gtk.Builder();
 271                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
 272
 273                 if (this.parentObj == null) {
 274                         return;
 275                 }
 276
 277
 278                 var parent = this.parentObj.wrapped_object;
 279
 280                 var do_pack =true;
 281
 282                 if (parent == null) { // no parent.. can not pack.
 283                         return; ///
 284                 }
 285                 // -------------  handle various special parents .. -----------
 286
 287                 var par_type = this.parentObj.node.fqn().replace(".", "");
 288
 289                 if (par_type == "GtkNotebook") {
 290                         // do not pack - it's done afterwards...
 291                         return;
 292                 }
 293
 294                 // -------------  handle various child types.. -----------
 295                 // our overrides
 296                 if (cls == "GtkMenu") {
 297                         this.packMenu();
 298                         return;
 299                 }
 300
 301                 if (cls == "GtkTreeStore") { // other stores?
 302                         // tree store is buildable??? ---
 303                         this.packTreeStore();
 304                         return;
 305                 }
 306                 if (cls =="GtkTreeViewColumn") { // other stores?
 307                         //?? treeview column is actually buildable -- but we do not use the builder???
 308                         this.packTreeViewColumn();
 309                         return;
 310                 }
 311                 if (cls_gtype.is_a(typeof(global::Gtk.CellRenderer))) { // other stores?
 312                         this.packCellRenderer();
 313                         return;
 314                 }
 315
 316
 317
 318                 // -- handle buildable add_child..
 319                 if (    cls_gtype.is_a(typeof(global::Gtk.Buildable))
 320                      &&
 321                         parent.get_type().is_a(typeof(global::Gtk.Buildable))
 322                 )
 323                 {
 324                         ((global::Gtk.Buildable)parent).add_child(gtkbuilder,
 325                                                   this.wrapped_object, null);
 326                         return;
 327                 }
 328                 // other packing?
 329
 330
 331
 332         }
 333
 334         public void packMenu()
 335         {
 336
 337
 338                 var parent = this.parentObj.wrapped_object;
 339                 if (!parent.get_type().is_a(typeof(global::Gtk.Widget))) {
 340                         print("skip menu pack - parent is not a widget");
 341                         return;
 342                 }
 343
 344                 var p = (global::Gtk.Menu)this.wrapped_object;
 345                 ((global::Gtk.Widget)parent).button_press_event.connect((s, ev) => {
 346                         p.set_screen(Gdk.Screen.get_default());
 347                         p.show_all();
 348                         p.popup(null, null, null, ev.button, ev.time);
 349                         return true;
 350                 });
 351         }
 352
 353         public void packTreeStore()
 354         {
 355                 var parent = this.parentObj.wrapped_object;
 356                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 357                         print("skip treestore pack - parent is not a treeview");
 358                         return;
 359                 }
 360                 ((global::Gtk.TreeView)parent).set_model((global::Gtk.TreeModel)this.wrapped_object);
 361
 362         }
 363         public void packTreeViewColumn()
 364         {
 365                 var parent = this.parentObj.wrapped_object;
 366                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 367                         print("skip packGtkViewColumn pack - parent is not a treeview");
 368                         return;
 369                 }
 370                 ((global::Gtk.TreeView)parent).append_column((global::Gtk.TreeViewColumn)this.wrapped_object);
 371                 // init contains the add_attribute for what to render...
 372
 373         }
 374
 375
 376         public void packCellRenderer()
 377         {
 378                 var parent = this.parentObj.wrapped_object;
 379                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeViewColumn))) {
 380                         print("skip packGtkViewColumn pack - parent is not a treeview");
 381                         return;
 382                 }
 383                 ((global::Gtk.TreeViewColumn)parent).pack_start((global::Gtk.CellRenderer)this.wrapped_object, false);
 384                 // init contains the add_attribute for what to render...
 385
 386         }
 387
 388
 389         public void packContainerParams()
 390         {
 391
 392                 if (this.parentObj == null) {
 393                         return;
 394                 }
 395                 // child must be a widget..
 396                 if (!this.wrapped_object.get_type().is_a(typeof(global::Gtk.Widget))) {
 397                         return;
 398                 }
 399
 400                 var parent_gir = Palete.Gir.factoryFqn(this.parentObj.node.fqn());
 401
 402                 var parent = this.parentObj.wrapped_object;
 403
 404                 if (parent_gir == null) {
 405                         return;
 406                 }
 407
 408                 // let's test just setting expand to false...
 409                 var cls_methods = parent_gir.methods;
 410                 if (cls_methods == null) {
 411                         return;
 412                 }
 413
 414                 if (!this.node.props.has_key("* pack") ||
 415                                 this.node.props.get("* pack").length < 1) {
 416                         return;
 417                 }
 418
 419                 var ns = this.parentObj.node.fqn().split(".")[0];
 420
 421                 var pack = this.node.props.get("* pack").split(",");
 422
 423
 424                 if (cls_methods.has_key(pack[0])) {
 425                         var mparams = cls_methods.get(pack[0]).paramset.params;
 426                         for (var i = 1; i < mparams.size; i++ ) {
 427                                 if (i > (pack.length -1)) {
 428                                         continue;
 429                                 }
 430
 431                                 var k = mparams.get(i).name;
 432
 433                                 Value cur_val;
 434
 435                                 var type = mparams.get(i).type;
 436                                 type = Palete.Gir.fqtypeLookup(type, ns);
 437
 438                                 var val = this.toValue(pack[i].strip(), type);
 439                                 if (val == null) {
 440                                         print("skip (failed to transform value %s type = %s from %s\n",
 441                                                 this.parentObj.node.fqn()  + "." + k, type, pack[i].strip());
 442                                         continue;
 443                                 }
 444                                 print ("pack:set_property ( %s , %s / %s)\n", k, pack[i].strip(), val.strdup_contents());
 445
 446                                 ((global::Gtk.Container)parent).child_set_property(
 447                                         (global::Gtk.Widget)this.wrapped_object , k, val);
 448
 449                         }
 450
 451                 }
 452
 453
 454
 455
 456         }
 457
 458
 459         public GLib.Value? toValue(string val, string type) {
 460
 461
 462                 /*
 463                 if (type == "string") {
 464                         var qret = GLib.Value(typeof(string));
 465                         qret.set_string(val);
 466                         return qret;
 467                 }
 468                 * */
 469                 /*
 470                  *
 471            * var gtkbuilder = new global::Gtk.Builder();
 472                 var prop_gtype = gtkbuilder.get_type_from_name(type);
 473
 474
 475                 if (prop_gtype == GLib.Type.INVALID) {
 476
 477                         return null;
 478                 }
 479                 */
 480
 481
 482
 483
 484                 switch(type) {
 485                         case "bool":
 486                                 var ret = GLib.Value(typeof(bool));
 487                                 ret.set_boolean(val.down() == "false" ? false : true);
 488                                 return ret;
 489
 490                         case "uint":
 491                                 var ret = GLib.Value(typeof(uint));
 492                                 ret.set_uint(int.parse(val));
 493                                 return ret;
 494
 495                         case "int":
 496                                 var ret = GLib.Value(typeof(int));
 497                                 ret.set_int(int.parse(val));
 498                                 return ret;
 499
 500                         // uint64 ...??
 501
 502                         case "long":
 503                                 var ret = GLib.Value(typeof(long));
 504                                 ret.set_long((long)int64.parse(val));
 505                                 return ret;
 506
 507                         case "ulong":
 508                                 var ret = GLib.Value(typeof(ulong));
 509                                 ret.set_ulong((ulong) uint64.parse(val));
 510                                 return ret;
 511
 512                         case "float":
 513                                 var ret = GLib.Value(typeof(float));
 514                                 ret.set_float((float)double.parse(val));
 515                                 return ret;
 516
 517                         case "string":
 518                                 var ret = GLib.Value(typeof(string));
 519                                 ret.set_string(val);
 520                                 return ret;
 521
 522                         default:
 523                                 return null;
 524                                 /*
 525                                 var sval =  GLib.Value(typeof(string));
 526                                 sval.set_string(val);
 527
 528                                 if (!sval.transform(ref ret)) {
 529
 530                                         return null;
 531                                 }
 532                                 return ret;
 533                                 */
 534                 }
 535                 // should not get here..
 536                 return null;
 537         }
 538
 539
 540
 541
 542 }