//////////////////////////////////////////////////////////////////
// GML CONTEXT MENUS RULES

#ALIAS[g=core.svg:GmlDrawing]
#INCLUDE[gml:defs.inc]

Configure RULES

var category = 'Context Menus';

//////////////////////////////////////////////////////////////////
// defineDanglingMenu rule

$ENV.defineRule({
   id:'defineDanglingMenu',
   category:category,
   description: 'Supplies the menu when the user creates a dangling connection',
   parameters:'gml:Unit unit!,gml:Plug source!,Point pos, env:MENU_BAR menu',
   additive:true
});


// rule helper for defineDanglingMenu.
$ENV.defineRuleHelper('defineDanglingMenu', 'menuItemClick', function(signal ,unit, source, pos, menu) {
		if (signal == 'cancel')  return;
				var cp= pos.x + ' ' + pos.y, srcplug=source;
				try{
					BEGIN('Create interactor and a link');
					var trgelem, trgplug;
					if (srcplug.dir == #[DIR_IN]) {
						trgelem = unit.createElement(signal,'elements',  {'#ASPECT[g:pos]':(pos.x-40)+' '+(pos.y+10)});
						trgplug = srcplug;
						srcplug = trgelem.getSinglePlug(#[DIR_OUT]);
						trgelem = trgplug.parent;
					} else {
						trgelem = unit.createElement(signal ,'elements' ,  {'#ASPECT[g:pos]':(pos.x+40)+' '+(pos.y+10)});
						trgplug = trgelem.getSinglePlug(#[DIR_IN]);
					}
					var linktype = trgelem.canConnect(srcplug, trgplug);
					var A = SPLIT(TRIM(linktype));
					if (!A[0]) { ROLLBACK(); return; }
					unit.createElement(A[0], 'elements', {source:srcplug, target:trgplug});
					var fields = trgelem.getInfoshape() && trgelem.getInfoshape().getFields() || {};
					if (ISEMPTY(fields) ){
						COMMIT();
						return;
					}
					var result = MODAL("#URL[common.FieldsSelectorDlg.htm]" ,{'interactor': trgelem },true);
					$ENV.context = trgelem;
					COMMIT();
				}catch(e){
					ROLLBACK();
		}
});