pad.libre-service.eu-etherpad/src/node/eejs/index.js
2015-04-11 09:53:27 +01:00

131 lines
3.5 KiB
JavaScript

/*
* Copyright (c) 2011 RedHog (Egil Möller) <egil.moller@freecode.no>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Basic usage:
*
* require("./index").require("./examples/foo.ejs")
*/
var ejs = require("ejs");
var fs = require("fs");
var path = require("path");
var hooks = require("ep_etherpad-lite/static/js/pluginfw/hooks.js");
var resolve = require("resolve");
exports.info = {
__output_stack: [],
block_stack: [],
file_stack: [],
args: []
};
function getCurrentFile() {
return exports.info.file_stack[exports.info.file_stack.length-1];
}
function createBlockId(name) {
return getCurrentFile().path + '|' + name;
}
exports._init = function (b, recursive) {
exports.info.__output_stack.push(exports.info.__output);
exports.info.__output = b;
}
exports._exit = function (b, recursive) {
getCurrentFile().inherit.forEach(function (item) {
exports._require(item.name, item.args);
});
exports.info.__output = exports.info.__output_stack.pop();
}
exports.begin_capture = function() {
exports.info.__output_stack.push(exports.info.__output.concat());
exports.info.__output.splice(0, exports.info.__output.length);
}
exports.end_capture = function () {
var res = exports.info.__output.join("");
exports.info.__output.splice.apply(
exports.info.__output,
[0, exports.info.__output.length].concat(exports.info.__output_stack.pop()));
return res;
}
exports.begin_define_block = function (name) {
exports.info.block_stack.push(name);
exports.begin_capture();
}
exports.end_define_block = function () {
var content = exports.end_capture();
return content;
}
exports.end_block = function () {
var name = exports.info.block_stack.pop();
var renderContext = exports.info.args[exports.info.args.length-1];
var args = {content: exports.end_define_block(), renderContext: renderContext};
hooks.callAll("eejsBlock_" + name, args);
exports.info.__output.push(args.content);
}
exports.begin_block = exports.begin_define_block;
exports.inherit = function (name, args) {
getCurrentFile().inherit.push({name:name, args:args});
}
exports.require = function (name, args, mod) {
if (args == undefined) args = {};
var basedir = __dirname;
var paths = [];
if (exports.info.file_stack.length) {
basedir = path.dirname(getCurrentFile().path);
}
if (mod) {
basedir = path.dirname(mod.filename);
paths = mod.paths;
}
var ejspath = resolve.sync(
name,
{
paths : paths,
basedir : basedir,
extensions : [ '.html', '.ejs' ],
}
)
args.e = exports;
args.require = require;
var template = '<% e._init(__output); %>' + fs.readFileSync(ejspath).toString() + '<% e._exit(); %>';
exports.info.args.push(args);
exports.info.file_stack.push({path: ejspath, inherit: []});
var res = ejs.render(template, args);
exports.info.file_stack.pop();
exports.info.args.pop();
return res;
}
exports._require = function (name, args) {
exports.info.__output.push(exports.require(name, args));
}