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...
 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
 119                 var ret = Object.new(cls_gtype);
 120                 ret.ref(); //??? problematic?
 121                 this.wrapped_object = ret;
 122
 123
 124                 switch(cls) {
 125                         // fixme
 126                         //case "GtkTreeStore": // top level.. - named and referenced
 127                         case "GtkListStore": // top level.. - named and referenced
 128                         //case "GtkTreeViewColumn": // part of liststore?!?!
 129                         //case "GtkMenu": // top level..
 130                         //case "GtkCellRendererText":
 131                         case "GtkSourceBuffer":
 132                         case "GtkClutterActor"://fixme..
 133                         case "GtkClutterEmbed"://fixme.. -- we can not nest embedded.. need to solve..
 134
 135                                 return null;
 136                 }
 137
 138                 this.packParent();
 139
 140
 141                 // pack paramenters
 142
 143
 144                 if (parent != null && parent.get_type().is_a(typeof(global::Gtk.Container))) {
 145                         this.packContainerParams();
 146                 }
 147
 148                 var cls_gir =Palete.Gir.factoryFqn(this.node.fqn());
 149                 if (cls_gir == null) {
 150                         return null;
 151                 }
 152                 //var id = this.node.uid();
 153                 //var ret = @"$pad<object class=\"$cls\" id=\"$id\">\n";
 154                 // properties..
 155                 var props = cls_gir.props;
 156
 157
 158                 var pviter = props.map_iterator();
 159                 while (pviter.next()) {
 160
 161                                 // print("Check: " +cls + "::(" + pviter.get_value().propertyof + ")" + pviter.get_key() + " " );
 162                         var k = pviter.get_key();
 163                         // skip items we have already handled..
 164                         if  (!this.node.has(k)) {
 165                                 continue;
 166                         }
 167                         // find out the type of the property...
 168                         var type = pviter.get_value().type;
 169                         type = Palete.Gir.fqtypeLookup(type, ns);
 170
 171                         var val = this.toValue(this.node.get(k).strip(), type);
 172                         if (val == null) {
 173                                 print("skip (failed to transform value %s type = %s from %s\n",
 174                                         cls + "." + k, type,  this.node.get(k).strip());
 175                                 continue;
 176                         }
 177                         print ("set_property ( %s , %s / %s)\n", k, this.node.get(k).strip(), val.strdup_contents());
 178
 179
 180                         ret.set_property(k, val);
 181
 182
 183                 }
 184                 // packing???
 185                 // for now... - just try the builder style packing
 186
 187
 188
 189                 if (this.node.items.size < 1) {
 190                         return this;
 191                 }
 192
 193                 for (var i = 0; i < this.node.items.size; i++ ) {
 194
 195                          var ch = this.mungeChild(this.node.items.get(i));
 196                          if (ch != null) {
 197                                  this.children.add(ch);
 198                          }
 199
 200                 }
 201
 202                 this.afterChildren();
 203
 204                 return this;
 205
 206
 207
 208
 209         }
 210
 211         public void  afterChildren()
 212         {
 213                 // things like GtkNotebook - we have to pack children after they have been created..
 214                 var cls = this.node.fqn().replace(".", "");
 215
 216                 if (cls == "GtkNotebook") {
 217                         this.afterChildrenGtkNotebook();
 218                 }
 219
 220
 221
 222         }
 223
 224         public void  afterChildrenGtkNotebook()
 225         {
 226                 // we have a number of children..
 227                 // some are labels - this might need to be more complex...
 228                 // perhaps labels should be a special property labels[] of the notebook..
 229                 var labels = new Gee.ArrayList<NodeToGtk>();
 230                 var bodies = new Gee.ArrayList<NodeToGtk>();
 231                 for (var i = 0; i < this.children.size; i++) {
 232                         var cn = this.children.get(i).node.fqn().replace(".", "");
 233                         if (cn != "GtkLabel") {
 234                                 bodies.add(this.children.get(i));
 235                                 continue;
 236                         }
 237                         labels.add(this.children.get(i));
 238                 }
 239                 for (var i = 0; i < bodies.size; i++) {
 240                         ((global::Gtk.Notebook)this.wrapped_object).append_page(
 241                                  (global::Gtk.Notebook) bodies.get(i).wrapped_object,
 242                                  (labels.size > i - 1) ?
 243                                         (global::Gtk.Notebook) labels.get(i).wrapped_object :
 244                                         null
 245
 246                         );
 247
 248
 249                 }
 250
 251
 252         }
 253
 254
 255         /**
 256          * called after the this.object  has been created
 257          * and it needs to be packed onto parent.
 258          */
 259         public void packParent()
 260         {
 261                 var cls = this.node.fqn().replace(".", "");
 262
 263                 var gtkbuilder = new global::Gtk.Builder();
 264                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
 265
 266                 if (this.parentObj == null) {
 267                         return;
 268                 }
 269
 270
 271                 var parent = this.parentObj.wrapped_object;
 272
 273                 var do_pack =true;
 274
 275                 if (parent == null) { // no parent.. can not pack.
 276                         return; ///
 277                 }
 278                 // -------------  handle various special parents .. -----------
 279
 280                 var par_type = this.parentObj.node.fqn().replace(".", "");
 281
 282                 if (par_type == "GtkNotebook") {
 283                         // do not pack - it's done afterwards...
 284                         return;
 285                 }
 286
 287                 // -------------  handle various child types.. -----------
 288                 // our overrides
 289                 if (cls == "GtkMenu") {
 290                         this.packMenu();
 291                         return;
 292                 }
 293
 294                 if (cls == "GtkTreeStore") { // other stores?
 295                         // tree store is buildable??? ---
 296                         this.packTreeStore();
 297                         return;
 298                 }
 299                 if (cls =="GtkTreeViewColumn") { // other stores?
 300                         //?? treeview column is actually buildable -- but we do not use the builder???
 301                         this.packTreeViewColumn();
 302                         return;
 303                 }
 304                 if (cls_gtype.is_a(typeof(global::Gtk.CellRenderer))) { // other stores?
 305                         this.packCellRenderer();
 306                         return;
 307                 }
 308
 309
 310
 311                 // -- handle buildable add_child..
 312                 if (    cls_gtype.is_a(typeof(global::Gtk.Buildable))
 313                      &&
 314                         parent.get_type().is_a(typeof(global::Gtk.Buildable))
 315                 )
 316                 {
 317                         ((global::Gtk.Buildable)parent).add_child(gtkbuilder,
 318                                                   this.wrapped_object, null);
 319                         return;
 320                 }
 321                 // other packing?
 322
 323
 324
 325         }
 326
 327         public void packMenu()
 328         {
 329
 330
 331                 var parent = this.parentObj.wrapped_object;
 332                 if (!parent.get_type().is_a(typeof(global::Gtk.Widget))) {
 333                         print("skip menu pack - parent is not a widget");
 334                         return;
 335                 }
 336
 337                 var p = (global::Gtk.Menu)this.wrapped_object;
 338                 ((global::Gtk.Widget)parent).button_press_event.connect((s, ev) => {
 339                         p.set_screen(Gdk.Screen.get_default());
 340                         p.show_all();
 341                         p.popup(null, null, null, ev.button, ev.time);
 342                         return true;
 343                 });
 344         }
 345
 346         public void packTreeStore()
 347         {
 348                 var parent = this.parentObj.wrapped_object;
 349                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 350                         print("skip treestore pack - parent is not a treeview");
 351                         return;
 352                 }
 353                 ((global::Gtk.TreeView)parent).set_model((global::Gtk.TreeModel)this.wrapped_object);
 354
 355         }
 356         public void packTreeViewColumn()
 357         {
 358                 var parent = this.parentObj.wrapped_object;
 359                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 360                         print("skip packGtkViewColumn pack - parent is not a treeview");
 361                         return;
 362                 }
 363                 ((global::Gtk.TreeView)parent).append_column((global::Gtk.TreeViewColumn)this.wrapped_object);
 364                 // init contains the add_attribute for what to render...
 365
 366         }
 367
 368
 369         public void packCellRenderer()
 370         {
 371                 var parent = this.parentObj.wrapped_object;
 372                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeViewColumn))) {
 373                         print("skip packGtkViewColumn pack - parent is not a treeview");
 374                         return;
 375                 }
 376                 ((global::Gtk.TreeViewColumn)parent).pack_start((global::Gtk.CellRenderer)this.wrapped_object, false);
 377                 // init contains the add_attribute for what to render...
 378
 379         }
 380
 381
 382         public void packContainerParams()
 383         {
 384
 385                 if (this.parentObj == null) {
 386                         return;
 387                 }
 388                 // child must be a widget..
 389                 if (!this.wrapped_object.get_type().is_a(typeof(global::Gtk.Widget))) {
 390                         return;
 391                 }
 392
 393                 var parent_gir = Palete.Gir.factoryFqn(this.parentObj.node.fqn());
 394
 395                 var parent = this.parentObj.wrapped_object;
 396
 397                 if (parent_gir == null) {
 398                         return;
 399                 }
 400
 401                 // let's test just setting expand to false...
 402                 var cls_methods = parent_gir.methods;
 403                 if (cls_methods == null) {
 404                         return;
 405                 }
 406
 407                 if (!this.node.props.has_key("* pack") ||
 408                                 this.node.props.get("* pack").length < 1) {
 409                         return;
 410                 }
 411
 412                 var ns = this.parentObj.node.fqn().split(".")[0];
 413
 414                 var pack = this.node.props.get("* pack").split(",");
 415
 416
 417                 if (cls_methods.has_key(pack[0])) {
 418                         var mparams = cls_methods.get(pack[0]).paramset.params;
 419                         for (var i = 1; i < mparams.size; i++ ) {
 420                                 if (i > (pack.length -1)) {
 421                                         continue;
 422                                 }
 423
 424                                 var k = mparams.get(i).name;
 425
 426                                 Value cur_val;
 427
 428                                 var type = mparams.get(i).type;
 429                                 type = Palete.Gir.fqtypeLookup(type, ns);
 430
 431                                 var val = this.toValue(pack[i].strip(), type);
 432                                 if (val == null) {
 433                                         print("skip (failed to transform value %s type = %s from %s\n",
 434                                                 this.parentObj.node.fqn()  + "." + k, type, pack[i].strip());
 435                                         continue;
 436                                 }
 437                                 print ("pack:set_property ( %s , %s / %s)\n", k, pack[i].strip(), val.strdup_contents());
 438
 439                                 ((global::Gtk.Container)parent).child_set_property(
 440                                         (global::Gtk.Widget)this.wrapped_object , k, val);
 441
 442                         }
 443
 444                 }
 445
 446
 447
 448
 449         }
 450
 451
 452         public GLib.Value? toValue(string val, string type) {
 453
 454                 var gtkbuilder = new global::Gtk.Builder();
 455
 456                 if (type == "string") {
 457                         var qret = GLib.Value(typeof(string));
 458                         qret.set_string(val);
 459                         return qret;
 460                 }
 461
 462                 var prop_gtype = gtkbuilder.get_type_from_name(type);
 463
 464
 465                 if (prop_gtype == GLib.Type.INVALID) {
 466
 467                         return null;
 468                 }
 469
 470
 471                 GLib.Value ret;
 472
 473
 474                 switch(type) {
 475                         case "bool":
 476                                 ret = GLib.Value(typeof(bool));
 477                                 ret.set_boolean(val.down() == "false" ? false : true);
 478                                 return ret;
 479
 480                         case "uint":
 481                                 ret = GLib.Value(typeof(uint));
 482                                 ret.set_uint(int.parse(val));
 483                                 return ret;
 484
 485                         case "int":
 486                                 ret = GLib.Value(typeof(int));
 487                                 ret.set_int(int.parse(val));
 488                                 return ret;
 489
 490                         // uint64 ...??
 491
 492                         case "long":
 493                                 ret = GLib.Value(typeof(long));
 494                                 ret.set_long((long)int64.parse(val));
 495                                 return ret;
 496
 497                         case "ulong":
 498                                 ret = GLib.Value(typeof(ulong));
 499                                 ret.set_ulong((ulong) uint64.parse(val));
 500                                 return ret;
 501
 502                         case "float":
 503                                 ret = GLib.Value(typeof(float));
 504                                 ret.set_float((float)double.parse(val));
 505                                 return ret;
 506
 507                         case "string":
 508                                 ret = GLib.Value(typeof(string));
 509                                 ret.set_string(val);
 510                                 return ret;
 511
 512                         default:
 513
 514                                 var sval =  GLib.Value(typeof(string));
 515                                 sval.set_string(val);
 516
 517                                 if (!sval.transform(ref ret)) {
 518
 519                                         return null;
 520                                 }
 521                                 return ret;
 522                 }
 523         }
 524
 525
 526
 527
 528 }