express-yui
Version:
Express extension for YUI Applications
54 lines (45 loc) • 2.1 kB
JavaScript
/*
* Copyright (c) 2013, Yahoo! Inc. All rights reserved.
* Copyrights licensed under the New BSD License.
* See the accompanying LICENSE file for terms.
*/
/*jslint node:true, nomen: true */
/**
Patches `Y.Loader` to support `templates` requirements, which enables you to
require templates easily without having to know the name of the module
generated by the build transpiler/plugin/task while define modules.
You can write your modules like this:
YUI.add('name', function (Y) {
// module code...
}, '0.1', { requires: [], templates: ['foo'] });
And you can enable the patch like this:
app.yui.patch(require('express-yui/lib/patches/templates-requires'));
This will guarantee, that the template denotated by the logical name `foo`
will be loaded. Of course, it will be loaded based on the transpiler
output, which generates a more complex module name. If you don't use this patch, you will
have to use the full name of the generated module.
@module express-yui/lib/patches/templates-requires
**/
module.exports = function patchTemplatesRequires(Y, loader) {
var getRequires = loader.getRequires;
loader.getRequires = function (mod) {
var i, len, m,
r = getRequires.apply(this, arguments);
// expanding requirements with templates required
if (mod.templates && !mod.templatesExpanded) {
len = mod.templates.length;
mod.templatesExpanded = [];
for (i = 0; i < len; i += 1) {
m = this.getModule(mod.group + '-template-' + mod.templates[i]);
if (m) {
mod.templatesExpanded = mod.templatesExpanded.concat(this.getRequires(m), [m.name]);
} else {
throw new Error('Invalid template [' + mod.templates[i] + '], module [' +
mod.group + '-template-' + mod.templates[i] + '] is not registered.');
}
}
}
return mod.templatesExpanded && mod.templatesExpanded.length ?
[].concat(mod.templatesExpanded, r) : r;
};
};