Hello World Gnome Search Provider

searchprovider.js

// -*- Mode: js; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*-
//
// Copyright (c) 2015 Christoph Schulz, based on
//    https://git.gnome.org/browse/gnome-weather/plain/src/service/searchProvider.js
//     Copyright (c) 2013 Giovanni Campagna <scampa.giovanni@gmail.com> (GPLv2 or later)
//
// Thus is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3 of the License, or (at your
// option) any later version.
//
// Gnome Weather is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with Gnome Weather; if not, write to the Free Software Foundation,
// Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;


const SearchProviderInterface = Gio.resources_lookup_data('/org/gnome/Shell/ShellSearchProvider2.xml', 0).toArray().toString();

const SearchProvider = new Lang.Class({
    Name: 'MySearchProvider',

    _init: function() {
        this.myterms = {"foo": "bar", "bar": "foo", "Where are you?": "I'm here!", "Are you there?": "Yes." } 
        this._impl = Gio.DBusExportedObject.wrapJSObject(SearchProviderInterface, this);
    },

    export: function(connection, path) {
        return this._impl.export(connection, path);
    },

    unexport: function(connection) {
        return this._impl.unexport_from_connection(connection);
    },

    GetInitialResultSet: function(params) {
        let terms = params[0];

        return this._runQuery(terms);
    },

    _runQuery: function(terms) {
        let result = [];
        //terms = terms.join(" ");

        for(var myterm in this.myterms){
                        // String#beginsWith(terms)
                        //vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
                if(myterm.slice(0, terms.length) == terms) result.push(myterm);
        }
        return result;
    },

    GetSubsearchResultSet: function(previous, terms) {
        let ret = [];
        //terms = terms.join(" ");

        for(i=0; i < previous.length; i++){
            if(this.myterms[previous[i]].slice(0, terms.length) == terms) ret.push(previous[i]);
        }
        for(myterm in this.myterms){
            if(myterm.slice(0, terms.length) == terms && ret.indexOf(myterm) < 0) ret.push(myterm);
        }

        return ret;
    },

    GetResultMetas: function(identifiers) {
        let ret = [];
        for(i=0; i < identifiers.length; i++){
            ret.push({
                "id": identifiers[i],
                "name": this.myterms[identifiers[i]],
                "description": "You searched, I deliver."});
        }

        return ret;
    },


    _activateAction: function(action, parameter, timestamp) {

    },

    ActivateResult: function(id, terms, timestamp) {
       print("Please activate: " + id); 
    },

    LaunchSearch: function(terms, timestamp) {
        print("Launch search plz.");
    },
});