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 set node to the return value..
  52                 }
  53
  54         }
  55
  56         public Object? munge ( )
  57         {
  58                 var ret = this.mungeNode();
  59                 if (ret == null) {
  60                         return null;
  61                 }
  62
  63                 return ret.wrapped_object;
  64
  65         }
  66         public NodeToGtk? mungeChild(  Node cnode)
  67         {
  68                 var x = new  NodeToGtk(cnode, this);
  69
  70                 return x.mungeNode();
  71
  72         }
  73
  74         public NodeToGtk? mungeNode()
  75         {
  76
  77                 var parent = this.parentObj != null ? this.parentObj.wrapped_object : null;
  78                 var cls = this.node.fqn().replace(".", "");
  79                 var ns = this.node.fqn().split(".")[0];
  80                 var gtkbuilder = new global::Gtk.Builder();
  81
  82                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
  83                 print("Type: %s ?= %s\n", this.node.fqn(), cls_gtype.name());
  84
  85                 if (cls_gtype == GLib.Type.INVALID) {
  86                         print("SKIP - gtype is invalid\n");
  87                         return null;
  88                 }
  89                 // if it's a window...
  90
  91                 if (cls_gtype.is_a(typeof(global::Gtk.Window))) {
  92                         // what if it has none...
  93                         if (this.node.items.size < 1) {
  94                                 return null;
  95                         }
  96                         return this.mungeChild(this.node.items.get(0));
  97                 }
  98
  99                 var ret = Object.new(cls_gtype);
 100                 ret.ref(); //??? problematic?
 101                 this.wrapped_object = ret;
 102
 103
 104                 switch(cls) {
 105                         // fixme
 106                         //case "GtkTreeStore": // top level.. - named and referenced
 107                         case "GtkListStore": // top level.. - named and referenced
 108                         //case "GtkTreeViewColumn": // part of liststore?!?!
 109                         //case "GtkMenu": // top level..
 110                         //case "GtkCellRendererText":
 111                         case "GtkSourceBuffer":
 112                         case "GtkClutterActor"://fixme..
 113                         case "GtkClutterEmbed"://fixme.. -- we can not nest embedded.. need to solve..
 114
 115                                 return null;
 116                 }
 117
 118                 this.packParent();
 119
 120
 121                 // pack paramenters
 122
 123
 124                 if (parent != null && parent.get_type().is_a(typeof(global::Gtk.Container))) {
 125                         this.packContainerParams();
 126                 }
 127
 128                 var cls_gir =Palete.Gir.factoryFqn(this.node.fqn());
 129                 if (cls_gir == null) {
 130                         return null;
 131                 }
 132                 //var id = this.node.uid();
 133                 //var ret = @"$pad<object class=\"$cls\" id=\"$id\">\n";
 134                 // properties..
 135                 var props = cls_gir.props;
 136
 137
 138                 var pviter = props.map_iterator();
 139                 while (pviter.next()) {
 140
 141                                 // print("Check: " +cls + "::(" + pviter.get_value().propertyof + ")" + pviter.get_key() + " " );
 142                         var k = pviter.get_key();
 143                         // skip items we have already handled..
 144                         if  (!this.node.has(k)) {
 145                                 continue;
 146                         }
 147                         // find out the type of the property...
 148                         var type = pviter.get_value().type;
 149                         type = Palete.Gir.fqtypeLookup(type, ns);
 150
 151                         var val = this.toValue(this.node.get(k).strip(), type);
 152                         if (val == null) {
 153                                 print("skip (failed to transform value %s type = %s from %s\n",
 154                                         cls + "." + k, type,  this.node.get(k).strip());
 155                                 continue;
 156                         }
 157                         print ("set_property ( %s , %s / %s)\n", k, this.node.get(k).strip(), val.strdup_contents());
 158
 159
 160                         ret.set_property(k, val);
 161
 162
 163                 }
 164                 // packing???
 165                 // for now... - just try the builder style packing
 166
 167
 168
 169                 if (this.node.items.size < 1) {
 170                         return this;
 171                 }
 172
 173                 for (var i = 0; i < this.node.items.size; i++ ) {
 174
 175                          var ch = this.mungeChild(this.node.items.get(i));
 176                          if (ch != null) {
 177                                  this.children.add(ch);
 178                          }
 179
 180                 }
 181
 182                 this.afterChildren();
 183
 184                 return this;
 185
 186
 187
 188
 189         }
 190
 191         public void  afterChildren()
 192         {
 193                 // things like GtkNotebook - we have to pack children after they have been created..
 194                 var cls = this.node.fqn().replace(".", "");
 195
 196                 if (cls == "GtkNotebook") {
 197                         this.afterChildrenGtkNotebook();
 198                 }
 199
 200
 201
 202         }
 203
 204         public void  afterChildrenGtkNotebook()
 205         {
 206                 // we have a number of children..
 207                 // some are labels - this might need to be more complex...
 208                 // perhaps labels should be a special property labels[] of the notebook..
 209                 var labels = new Gee.ArrayList<NodeToGtk>();
 210                 var bodies = new Gee.ArrayList<NodeToGtk>();
 211                 for (var i = 0; i < this.children.size; i++) {
 212                         var cn = this.children.get(i).node.fqn().replace(".", "");
 213                         if (cn != "GtkLabel") {
 214                                 bodies.add(this.children.get(i));
 215                                 continue;
 216                         }
 217                         labels.add(this.children.get(i));
 218                 }
 219                 for (var i = 0; i < bodies.size; i++) {
 220                         ((global::Gtk.Notebook)this.wrapped_object).append_page(
 221                                  (global::Gtk.Notebook) bodies.get(i).wrapped_object,
 222                                  (labels.size > i - 1) ?
 223                                         (global::Gtk.Notebook) labels.get(i).wrapped_object :
 224                                         null
 225
 226                         );
 227
 228
 229                 }
 230
 231
 232         }
 233
 234
 235         /**
 236          * called after the this.object  has been created
 237          * and it needs to be packed onto parent.
 238          */
 239         public void packParent()
 240         {
 241                 var cls = this.node.fqn().replace(".", "");
 242
 243                 var gtkbuilder = new global::Gtk.Builder();
 244                 var cls_gtype = gtkbuilder.get_type_from_name(cls);
 245
 246                 if (this.parentObj == null) {
 247                         return;
 248                 }
 249
 250
 251                 var parent = this.parentObj.wrapped_object;
 252
 253                 var do_pack =true;
 254
 255                 if (parent == null) { // no parent.. can not pack.
 256                         return; ///
 257                 }
 258                 // -------------  handle various special parents .. -----------
 259
 260                 var par_type = this.parentObj.node.fqn().replace(".", "");
 261
 262                 if (par_type == "GtkNotebook") {
 263                         // do not pack - it's done afterwards...
 264                         return;
 265                 }
 266
 267                 // -------------  handle various child types.. -----------
 268                 // our overrides
 269                 if (cls == "GtkMenu") {
 270                         this.packMenu();
 271                         return;
 272                 }
 273
 274                 if (cls == "GtkTreeStore") { // other stores?
 275                         // tree store is buildable??? ---
 276                         this.packTreeStore();
 277                         return;
 278                 }
 279                 if (cls =="GtkTreeViewColumn") { // other stores?
 280                         //?? treeview column is actually buildable -- but we do not use the builder???
 281                         this.packTreeViewColumn();
 282                         return;
 283                 }
 284                 if (cls_gtype.is_a(typeof(global::Gtk.CellRenderer))) { // other stores?
 285                         this.packCellRenderer();
 286                         return;
 287                 }
 288
 289
 290
 291                 // -- handle buildable add_child..
 292                 if (    cls_gtype.is_a(typeof(global::Gtk.Buildable))
 293                      &&
 294                         parent.get_type().is_a(typeof(global::Gtk.Buildable))
 295                 )
 296                 {
 297                         ((global::Gtk.Buildable)parent).add_child(gtkbuilder,
 298                                                   this.wrapped_object, null);
 299                         return;
 300                 }
 301                 // other packing?
 302
 303
 304
 305         }
 306
 307         public void packMenu()
 308         {
 309
 310
 311                 var parent = this.parentObj.wrapped_object;
 312                 if (!parent.get_type().is_a(typeof(global::Gtk.Widget))) {
 313                         print("skip menu pack - parent is not a widget");
 314                         return;
 315                 }
 316
 317                 var p = (global::Gtk.Menu)this.wrapped_object;
 318                 ((global::Gtk.Widget)parent).button_press_event.connect((s, ev) => {
 319                         p.set_screen(Gdk.Screen.get_default());
 320                         p.show_all();
 321                         p.popup(null, null, null, ev.button, ev.time);
 322                         return true;
 323                 });
 324         }
 325
 326         public void packTreeStore()
 327         {
 328                 var parent = this.parentObj.wrapped_object;
 329                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 330                         print("skip treestore pack - parent is not a treeview");
 331                         return;
 332                 }
 333                 ((global::Gtk.TreeView)parent).set_model((global::Gtk.TreeModel)this.wrapped_object);
 334
 335         }
 336         public void packTreeViewColumn()
 337         {
 338                 var parent = this.parentObj.wrapped_object;
 339                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeView))) {
 340                         print("skip packGtkViewColumn pack - parent is not a treeview");
 341                         return;
 342                 }
 343                 ((global::Gtk.TreeView)parent).append_column((global::Gtk.TreeViewColumn)this.wrapped_object);
 344                 // init contains the add_attribute for what to render...
 345
 346         }
 347
 348
 349         public void packCellRenderer()
 350         {
 351                 var parent = this.parentObj.wrapped_object;
 352                 if (!parent.get_type().is_a(typeof(global::Gtk.TreeViewColumn))) {
 353                         print("skip packGtkViewColumn pack - parent is not a treeview");
 354                         return;
 355                 }
 356                 ((global::Gtk.TreeViewColumn)parent).pack_start((global::Gtk.CellRenderer)this.wrapped_object, false);
 357                 // init contains the add_attribute for what to render...
 358
 359         }
 360
 361
 362         public void packContainerParams()
 363         {
 364
 365                 if (this.parentObj == null) {
 366                         return;
 367                 }
 368                 // child must be a widget..
 369                 if (!this.wrapped_object.get_type().is_a(typeof(global::Gtk.Widget))) {
 370                         return;
 371                 }
 372
 373                 var parent_gir = Palete.Gir.factoryFqn(this.parentObj.node.fqn());
 374
 375                 var parent = this.parentObj.wrapped_object;
 376
 377                 if (parent_gir == null) {
 378                         return;
 379                 }
 380
 381                 // let's test just setting expand to false...
 382                 var cls_methods = parent_gir.methods;
 383                 if (cls_methods == null) {
 384                         return;
 385                 }
 386
 387                 if (!this.node.props.has_key("* pack") ||
 388                                 this.node.props.get("* pack").length < 1) {
 389                         return;
 390                 }
 391
 392                 var ns = this.parentObj.node.fqn().split(".")[0];
 393
 394                 var pack = this.node.props.get("* pack").split(",");
 395
 396
 397                 if (cls_methods.has_key(pack[0])) {
 398                         var mparams = cls_methods.get(pack[0]).paramset.params;
 399                         for (var i = 1; i < mparams.size; i++ ) {
 400                                 if (i > (pack.length -1)) {
 401                                         continue;
 402                                 }
 403
 404                                 var k = mparams.get(i).name;
 405
 406                                 Value cur_val;
 407
 408                                 var type = mparams.get(i).type;
 409                                 type = Palete.Gir.fqtypeLookup(type, ns);
 410
 411                                 var val = this.toValue(pack[i].strip(), type);
 412                                 if (val == null) {
 413                                         print("skip (failed to transform value %s type = %s from %s\n",
 414                                                 this.parentObj.node.fqn()  + "." + k, type, pack[i].strip());
 415                                         continue;
 416                                 }
 417                                 print ("pack:set_property ( %s , %s / %s)\n", k, pack[i].strip(), val.strdup_contents());
 418
 419                                 ((global::Gtk.Container)parent).child_set_property(
 420                                         (global::Gtk.Widget)this.wrapped_object , k, val);
 421
 422                         }
 423
 424                 }
 425
 426
 427
 428
 429         }
 430
 431
 432         public GLib.Value? toValue(string val, string type) {
 433
 434                 var gtkbuilder = new global::Gtk.Builder();
 435
 436                 if (type == "utf8") {
 437                         var qret = GLib.Value(typeof(string));
 438                         qret.set_string(val);
 439                         return qret;
 440                 }
 441
 442                 var prop_gtype = gtkbuilder.get_type_from_name(type);
 443
 444
 445                 if (prop_gtype == GLib.Type.INVALID) {
 446
 447                         return null;
 448                 }
 449
 450
 451                 var ret = GLib.Value(prop_gtype);
 452
 453
 454                 switch(type) {
 455                         case "gboolean":
 456                                 ret.set_boolean(val.down() == "false" ? false : true);
 457                                 return ret;
 458                         case "guint":
 459                                 ret.set_uint(int.parse(val));
 460                                 return ret;
 461
 462                         case "gint":
 463                                 ret.set_int(int.parse(val));
 464                                 return ret;
 465
 466                         case "gfloat":
 467                                 ret.set_float(long.parse(val));
 468                                 return ret;
 469
 470                         case "utf8":
 471                                 ret.set_string(val);
 472                                 return ret;
 473
 474                         default:
 475
 476                                 var sval =  GLib.Value(typeof(string));
 477                                 sval.set_string(val);
 478
 479                                 if (!sval.transform(ref ret)) {
 480
 481                                         return null;
 482                                 }
 483                                 return ret;
 484                 }
 485         }
 486
 487
 488
 489
 490 }