mirror of
https://github.com/pierre42100/comunic
synced 2024-11-16 18:41:13 +00:00
87 lines
2.8 KiB
JavaScript
Executable File
87 lines
2.8 KiB
JavaScript
Executable File
/* -*- Mode: js; js-indent-level: 2; indent-tabs-mode: nil; tab-width: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/*
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* Copyright 2014 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*jslint node: true */
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'use strict';
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var fs = require('fs');
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var path = require('path');
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var spawn = require('child_process').spawn;
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var ttxResourcesHome = path.join(__dirname, '..', 'ttx');
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var nextTTXTaskId = Date.now();
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function runTtx(ttxResourcesHome, fontPath, registerOnCancel, callback) {
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fs.realpath(ttxResourcesHome, function (err, ttxResourcesHome) {
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var fontToolsHome = path.join(ttxResourcesHome, 'fonttools-code');
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fs.realpath(fontPath, function (err, fontPath) {
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var ttxPath = path.join('Tools', 'ttx');
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if (!fs.existsSync(path.join(fontToolsHome, ttxPath))) {
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callback('TTX was not found, please checkout PDF.js submodules');
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return;
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}
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var ttxEnv = {
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'PYTHONPATH': path.join(fontToolsHome, 'Lib'),
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'PYTHONDONTWRITEBYTECODE': true
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};
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var ttxStdioMode = 'ignore';
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var ttx = spawn('python', [ttxPath, fontPath],
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{cwd: fontToolsHome, stdio: ttxStdioMode, env: ttxEnv});
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var ttxRunError;
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registerOnCancel(function (reason) {
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ttxRunError = reason;
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callback(reason);
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ttx.kill();
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});
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ttx.on('error', function (err) {
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ttxRunError = err;
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callback('Unable to execute ttx');
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});
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ttx.on('close', function (code) {
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if (ttxRunError) {
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return;
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}
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callback();
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});
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});
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});
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}
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exports.translateFont = function translateFont(content, registerOnCancel,
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callback) {
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var buffer = new Buffer(content, 'base64');
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var taskId = (nextTTXTaskId++).toString();
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var fontPath = path.join(ttxResourcesHome, taskId + '.otf');
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var resultPath = path.join(ttxResourcesHome, taskId + '.ttx');
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fs.writeFileSync(fontPath, buffer);
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runTtx(ttxResourcesHome, fontPath, registerOnCancel, function (err) {
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fs.unlink(fontPath);
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if (err) {
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console.error(err);
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callback(err);
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} else if (!fs.existsSync(resultPath)) {
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callback('Output was not generated');
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} else {
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callback(null, fs.readFileSync(resultPath));
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fs.unlink(resultPath);
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}
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});
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};
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