src/Palete/Gir.vala

[app.Builder.js] / src / Palete / Gir.vala

// valac -g  --pkg gee-1.0 --pkg libxml-2.0 --pkg gobject-introspection-1.0 --pkg json-glib-1.0  Palete/Gir.vala -o /tmp/Gir
/* 
public static int main (string[] args) {
    
    var g = Palete.Gir.factory("Gtk");
        var test = g.classes.get("ToolButton");
        
        
    var generator = new Json.Generator ();
    var n = new Json.Node(Json.NodeType.OBJECT);
    n.set_object(test.toJSON());
    generator.set_root(n);
    generator.indent = 4;
    generator.pretty = true;
    
    print(generator.to_data(null));
    return 0;
}
 */
namespace Palete {
 
         
    
    
    // Gir - is the libvala based version - 
    
    
        public class Gir : GirObject {
    
                //Gee.Hashmap<string,what> nodes;
                
                public Gir (string ns)
                {
                        base("Package",ns);
                         
                }
                 
                public string doc(string what)
                {
                        var ar = what.split(".");
                        var cls = this.classes.get(ar[1]);
                        if (ar.length == 2) {
                                return cls.doctxt != null ? cls.doctxt : "";
                        }
                        // return the property.. by default..
                        var pr = cls.props.get(ar[2]);
                        return pr.doctxt != null ? pr.doctxt : "";

                }
                /**
                 * since constructors from the API from gir or vala do not map
                 * correctly to properties, we have an Gir.overides file in resources
                 * that changes the ctor's for some elements.
                 * 
                 */
                 
                public static void checkParamOverride(GirObject c)
                {
                        var parset = c.gparent;
                        if (parset == null || parset.nodetype != "Paramset") {
                                return;
                        }
                        var method = parset.gparent;
                        if (method == null || method.nodetype != "Ctor") {
                                return;
                        }
                        var cls = method.gparent;
                        if (cls == null || cls.nodetype != "Class") {
                                return;
                        }

                         
                
                        c.name = this.fetchOverride( cls.name, method.name, c.name);
                }
                public static bool overrides_loaded = false;
                public static Gee.HashMap<string,string> overrides;
        
                public string fetchOverride(  string cls, string method, string param)
                {
                        // overrides should be in a file Gir.overides
                        // in that "Gtk.Label.new.str" : "label"
                        this.loadOverrides();
                        var key = "%s.%s.%s".printf(cls,method,param);
                        //print("Chekcing for key %s\n", key);
                        if (!overrides.has_key(key)) {
                                return param;
                        }
                        return overrides.get(key);


                }
                 
                 public void loadOverrides(bool force = false)
                {
                        if (overrides_loaded && ! force) {
                                return;
                        }
                
                        var pa = new Json.Parser();
                        pa.load_from_file(BuilderApplication.configDirectory() + "/resources/Gir.overides");
                        var node = pa.get_root();
                    
                        if (node.get_node_type () != Json.NodeType.OBJECT) {
                                throw new GirError.INVALID_FORMAT ("Error loading gir.overides : Unexpected element type %s", node.type_name ());
                        }
                        overrides = new Gee.HashMap<string,string>();
                
                
                        var obj = node.get_object ();
                
                
                        obj.foreach_member((o , key, value) => {
                                //print(key+"\n");
                                var v = obj.get_string_member(key);
                                overrides.set(key, v);
                        });
        
                        overrides_loaded = true;

                

                }
                
                /**
                 *  == all static below here...
                 * 
                 */
                public static  Gee.HashMap<string,Gir> cache = null;

                
                public static Gir?  factory(string ns) 
                {
                        if (cache == null) {
                                cache = new Gee.HashMap<string,Gir>();
                                var a = new VapiParser( );
                                a.create_valac_tree();
                                  
                        }
                        var ret = cache.get(ns);
                        
                        
                        /*
                        if (ret == null) {

                                var add = new Gir(ns);
                                
                                cache.set(ns, add);
                        
                                var iter = add.classes.map_iterator();
                                while(iter.next()) {
                                        iter.get_value().overlayParent();
                                }
                                // loop again and add the ctor properties.
                                iter = add.classes.map_iterator();
                                while(iter.next()) {
                                        iter.get_value().overlayCtorProperties();
                                }       

                                
                                ret = cache.get(ns);
                        }
                        */
                        if (ret != null && !ret.is_overlaid) {
                                ret.is_overlaid = true;
                                var iter = ret.classes.map_iterator();
                                while(iter.next()) {
                                        iter.get_value().overlayParent();
                                }
                                // loop again and add the ctor properties.
                                iter = ret.classes.map_iterator();
                                while(iter.next()) {
                                        iter.get_value().overlayCtorProperties();
                                }       
                                
                                
                        }
                        
                        
                         

                        return ret;
                        
                }
                public static GirObject?  factoryFqn(string fqn)  
                {       
                        var bits = fqn.split(".");
                        if (bits.length < 1) {
                                return null;
                        }
                        
                        var f = (GirObject)factory(bits[0]);

                        if (bits.length == 1 || f ==null) {
                                return f;
                        }
                        return f.fetchByFqn(fqn.substring(bits[0].length+1)); // since classes are stored in fqn format...?
                                            
                        
                }

                        
                /**
                 * guess the fqn of a type == eg. gboolean or Widget etc...
                 */
                public static string fqtypeLookup(string type, string ns) {
                        var g = factory(ns);
                        if (g.classes.has_key(type)) {
                                return ns + "." + type;
                        }
                        // enums..
                        if (g.consts.has_key(type)) {
                                return ns + "." + type;
                        }
                        
                        
                        // look at includes..
                        var iter = g.includes.map_iterator();
                        while(iter.next()) {
                                // skip empty namespaces on include..?
                                if ( iter.get_key() == "") {
                                        continue;
                                }
                                var ret = fqtypeLookup(type, iter.get_key());
                                if (ret != type) {
                                        return ret;
                                }
                }       
                        return type;
                }
                


                
                // needed still - where's it called form..
                public static string guessDefaultValueForType(string type) {
                        //print("guessDefaultValueForType: %s\n", type);
                        if (type.length < 1 || type.contains(".")) {
                                return "null";
                        }
                        switch(type) {
                                case "gboolean":
                                        return "true";
                                case "guint":
                                        return "0";
                                case "utf8":
                                        return "\"\"";
                                default:
                                        return "?"+  type + "?";
                        }

                }

                



                 
        }       

        
}