sheercms/lib/plugins.js

Sheer Cliff CMS is a simple and powerful content management system (CMS) for Node JS.

var async = require("async");
var logger = require("./logger");

var container = {};

/*
callback: (err)
 */
module.exports.init = function(server, callback) {
    try {
        //initialize all of the registered plugins
        var keys = module.exports.getPluginKeys();
        async.each(keys, function (key, done) {
            var p = module.exports.get(key);
            if (p && typeof p.init === 'function') {
                p.init(server, function (err) {
                    if (err) {
                        logger.error("Error initializing plugin: " + err + ". Call Stack: " + err.stack);
                        done(err);
                    } else {
                        logger.info("Plugin initialized: " + key);
                        done();
                    }
                });
            } else {
                done();
            }
        }, function (err) {
            if (callback) callback(err);
        });

    } catch(e) {
        logger.error(e);
        if (callback) callback(e);
    }
};

module.exports.set = function(key, obj) {
    logger.info("Registering plugin: " + key);
    container[key] = obj;
};

module.exports.get = function(key) {
    return container[key];
};

module.exports.getPluginKeys = function() {
    return Object.keys(container);
};

module.exports.getPlugins = function() {
    var keys = Object.keys(container);
    var arr = [];
    for(var i = 0; i < keys.length; i++) {
        var obj = module.exports.get(keys[i]);
        if (obj)
            arr.push(obj);
    }
    return arr;
};

module.exports.getPluginResources = function() {
    var result = {
        scripts: [],
        styles: []
    };

    var plugins = module.exports.getPlugins();
    if (plugins && plugins.length > 0) {
        for(var i = 0; i < plugins.length; i++) {
            var obj = plugins[i];
            if (obj && typeof obj.getResources == 'function') {
                var r = obj.getResources();
                if (r) {
                    if (r.scripts) {
                        for(var j = 0; j < r.scripts.length; j++)
                            result.scripts.push(r.scripts[j]);
                    }
                    if (r.styles) {
                        for(var j = 0; j < r.styles.length; j++)
                            result.styles.push(r.styles[j]);
                    }
                }
            }
        }
    }
    return result;
};