mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Andreas Svensson
103 lines
2.9 KiB
JavaScript
103 lines
2.9 KiB
JavaScript
/**
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* Copyright 2013 Facebook, Inc.
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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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/* jshint browser: true */
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/* jslint evil: true */
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'use strict';
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var runScripts;
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var headEl;
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var transform = require('jstransform').transform;
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var visitors = require('./fbtransform/visitors').transformVisitors;
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var transform = transform.bind(null, visitors.react);
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var docblock = require('jstransform/src/docblock');
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exports.transform = transform;
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exports.exec = function(code) {
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return eval(transform(code).code);
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};
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if (typeof window === "undefined" || window === null) {
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return;
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}
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headEl = document.getElementsByTagName('head')[0];
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var run = exports.run = function(code) {
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var jsx = docblock.parseAsObject(docblock.extract(code)).jsx;
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var functionBody = jsx ? transform(code).code : code;
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var scriptEl = document.createElement('script');
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scriptEl.text = functionBody;
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headEl.appendChild(scriptEl);
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};
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var load = exports.load = function(url, callback) {
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var xhr;
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xhr = window.ActiveXObject ? new window.ActiveXObject('Microsoft.XMLHTTP')
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: new XMLHttpRequest();
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// Disable async since we need to execute scripts in the order they are in the
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// DOM to mirror normal script loading.
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xhr.open('GET', url, false);
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if ('overrideMimeType' in xhr) {
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xhr.overrideMimeType('text/plain');
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}
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xhr.onreadystatechange = function() {
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if (xhr.readyState === 4) {
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if (xhr.status === 0 || xhr.status === 200) {
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run(xhr.responseText);
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} else {
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throw new Error("Could not load " + url);
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}
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if (callback) {
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return callback();
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}
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}
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};
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return xhr.send(null);
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};
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runScripts = function() {
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var scripts = document.getElementsByTagName('script');
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// Array.prototype.slice cannot be used on NodeList on IE8
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var jsxScripts = [];
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for (var i = 0; i < scripts.length; i++) {
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if (scripts.item(i).type === 'text/jsx') {
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jsxScripts.push(scripts.item(i));
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}
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}
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console.warn("You are using the in-browser JSX transformer. Be sure to precompile your JSX for production - http://facebook.github.io/react/docs/tooling-integration.html#jsx");
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jsxScripts.forEach(function(script) {
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if (script.src) {
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load(script.src);
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} else {
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run(script.innerHTML);
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}
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});
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};
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if (window.addEventListener) {
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window.addEventListener('DOMContentLoaded', runScripts, false);
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} else {
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window.attachEvent('onload', runScripts);
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}
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