pad.pub0.org/node/pluginfw/hooks.js

49 lines
1.4 KiB
JavaScript

var plugins = require("./plugins");
var async = require("async");
/* Don't use Array.concat as it flatterns arrays within the array */
exports.flatten = function (lst) {
var res = [];
if (lst != undefined && lst != null) {
for (var i = 0; i < lst.length; i++) {
if (lst[i] != undefined && lst[i] != null) {
for (var j = 0; j < lst[i].length; j++) {
res.push(lst[i][j]);
}
}
}
}
return res;
}
exports.callAll = function (hook_name, args) {
if (plugins.hooks[hook_name] === undefined) return [];
return exports.flatten(plugins.hooks[hook_name].map(function (hook) {
return hook.hook(hook_name, args, function (x) { return x; });
}));
}
exports.aCallAll = function (hook_name, args, cb) {
if (plugins.hooks[hook_name] === undefined) cb([]);
async.map(
plugins.hooks[hook_name],
function (hook, cb) {
hook.hook(hook_name, args, function (res) { cb(null, res); });
},
function (err, res) {
cb(exports.flatten(res));
}
);
}
exports.callFirst = function (hook_name, args) {
if (plugins.hooks[hook_name][0] === undefined) return [];
return exports.flatten(plugins.hooks[hook_name][0].hook(hook_name, args, function (x) { return x; }));
}
exports.aCallFirst = function (hook_name, args, cb) {
if (plugins.hooks[hook_name][0] === undefined) cb([]);
plugins.hooks[hook_name][0].hook(hook_name, args, function (res) { cb(exports.flatten(res)); });
}