mirror of
https://github.com/remy/inliner.git
synced 2024-09-11 17:25:30 +03:00
emit events - ready for module to be included in web apps for progress
This commit is contained in:
remy
parent
a7696dc7b6
commit
b12359a95a
117
inliner.js
117
inliner.js
@ -1,4 +1,6 @@
|
||||
var URL = require('url'),
|
||||
util = require('util'),
|
||||
events = require('events'),
|
||||
Buffer = require('buffer').Buffer,
|
||||
jsdom = require('jsdom'),
|
||||
jsp = require('uglify-js/lib/parse-js'),
|
||||
@ -6,10 +8,10 @@ var URL = require('url'),
|
||||
http = {
|
||||
http: require('http'),
|
||||
https: require('https')
|
||||
};
|
||||
},
|
||||
defaults = { compressCSS: true, collapseWhitespace: true };
|
||||
|
||||
function makeRequest(url) {
|
||||
console.error('GET ' + url);
|
||||
var oURL = URL.parse(url),
|
||||
options = {
|
||||
host: oURL.hostname,
|
||||
@ -21,34 +23,41 @@ function makeRequest(url) {
|
||||
return http[oURL.protocol.slice(0, -1) || 'http'].request(options);
|
||||
}
|
||||
|
||||
function get(url, rules, callback) {
|
||||
var request = makeRequest(url),
|
||||
body = '';
|
||||
|
||||
if (typeof rules == 'function') {
|
||||
callback = rules;
|
||||
rules = {};
|
||||
}
|
||||
|
||||
request.on('response', function (res) {
|
||||
res.on('data', function (chunk) {
|
||||
if (res.statusCode == 200) body += chunk;
|
||||
});
|
||||
|
||||
res.on('error', function () {
|
||||
console.log('err');
|
||||
console.log(arguments);
|
||||
});
|
||||
|
||||
res.on('end', function () {
|
||||
if (rules && rules.not) {
|
||||
if (res.headers['content-type'].indexOf(rules.not) !== -1) {
|
||||
body = '';
|
||||
function getter(parent) {
|
||||
return function (url, rules, callback) {
|
||||
var request = makeRequest(url),
|
||||
body = '';
|
||||
|
||||
if (typeof rules == 'function') {
|
||||
callback = rules;
|
||||
rules = {};
|
||||
}
|
||||
|
||||
request.on('response', function (res) {
|
||||
res.on('data', function (chunk) {
|
||||
if (res.statusCode == 200) body += chunk;
|
||||
});
|
||||
|
||||
res.on('error', function () {
|
||||
console.log('err');
|
||||
console.log(arguments);
|
||||
});
|
||||
|
||||
res.on('end', function () {
|
||||
if (rules && rules.not) {
|
||||
if (res.headers['content-type'].indexOf(rules.not) !== -1) {
|
||||
body = '';
|
||||
}
|
||||
}
|
||||
}
|
||||
callback && callback(body);
|
||||
});
|
||||
}).end();
|
||||
|
||||
if (body) {
|
||||
parent.emit('progress', 'get ' + url);
|
||||
}
|
||||
|
||||
callback && callback(body);
|
||||
});
|
||||
}).end();
|
||||
}
|
||||
}
|
||||
|
||||
function img2base64(url, callback) {
|
||||
@ -108,6 +117,7 @@ function getImagesFromCSS(rooturl, rawCSS, callback) {
|
||||
var resolvedURL = URL.resolve(rooturl, url);
|
||||
if (images[url] === undefined) {
|
||||
img2base64(resolvedURL, function (dataurl) {
|
||||
inliner.emit('progress', 'base64encode ' + resolvedURL);
|
||||
imageCount--;
|
||||
if (images[url] === undefined) images[url] = dataurl;
|
||||
checkFinished();
|
||||
@ -134,12 +144,18 @@ function removeComments(element) {
|
||||
}
|
||||
}
|
||||
|
||||
var inliner = module.exports = function (url, options, callback) {
|
||||
var root = url;
|
||||
function Inliner(url, options, callback) {
|
||||
var root = url,
|
||||
inliner = this,
|
||||
get = getter(this);
|
||||
|
||||
events.EventEmitter.call(this);
|
||||
|
||||
if (typeof options == 'function') {
|
||||
callback = options;
|
||||
options = { compressCSS: true, collapseWhitespace: true };
|
||||
options = defaults;
|
||||
} else if (options === undefined) {
|
||||
options = defaults;
|
||||
}
|
||||
|
||||
get(url, function (html) {
|
||||
@ -152,7 +168,7 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
|
||||
var todo = { scripts: true, images: true, links: true, styles: true },
|
||||
assets = {
|
||||
scripts: window.$('script[src]'),
|
||||
scripts: window.$('script'),
|
||||
images: window.$('img').filter(function(){ return this.src.indexOf('data:') == -1; }),
|
||||
links: window.$('link[rel=stylesheet]'),
|
||||
styles: window.$('style')
|
||||
@ -180,7 +196,9 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
var html = window.document.innerHTML;
|
||||
if (options.collapseWhitespace) html = html.replace(/\s+/g, ' ');
|
||||
// console.log(html);
|
||||
callback('<!DOCTYPE html>' + html);
|
||||
html = '<!DOCTYPE html>' + html;
|
||||
callback && callback(html);
|
||||
inliner.emit('end', html);
|
||||
} else if (items < 0) {
|
||||
console.log('something went wrong on finish');
|
||||
console.dir(breakdown);
|
||||
@ -188,8 +206,10 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
}
|
||||
|
||||
todo.images && assets.images.each(function () {
|
||||
var img = this;
|
||||
img2base64(URL.resolve(url, img.src), function (dataurl) {
|
||||
var img = this,
|
||||
resolvedURL = URL.resolve(url, img.src);
|
||||
img2base64(resolvedURL, function (dataurl) {
|
||||
inliner.emit('progress', 'base64encode ' + resolvedURL);
|
||||
if (dataurl) images[img.src] = dataurl;
|
||||
img.src = dataurl;
|
||||
breakdown.images--;
|
||||
@ -206,7 +226,9 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
if (match !== null && match.length) {
|
||||
var url = window.$.trim(match[1].replace(/url/, '').replace(/['}"]/g, '').replace(/;/, '')).split(' '); // clean up
|
||||
// if url has a length > 1, then we have media types to target
|
||||
get(URL.resolve(root, url[0]), function (importedCSS) {
|
||||
var resolvedURL = URL.resolve(root, url[0]);
|
||||
get(resolvedURL, function (importedCSS) {
|
||||
inliner.emit('progress', 'import ' + resolvedURL);
|
||||
if (url.length > 1) {
|
||||
url.shift();
|
||||
importedCSS = '@media ' + url.join(' ') + '{' + importedCSS + '}';
|
||||
@ -227,6 +249,7 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
getImagesFromCSS(url, this.innerHTML, function (css) {
|
||||
// do one level of @import rules
|
||||
getImportCSS(css, function (css) {
|
||||
if (options.compressCSS) inliner.emit('progress', 'compressed ' + resolvedURL);
|
||||
style.innerHTML = css;
|
||||
|
||||
breakdown.styles--;
|
||||
@ -243,6 +266,7 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
get(linkURL, function (css) {
|
||||
getImagesFromCSS(linkURL, css, function (css) {
|
||||
getImportCSS(css, function (css) {
|
||||
if (options.compressCSS) inliner.emit('progress', 'compressed ' + linkURL);
|
||||
breakdown.links--;
|
||||
|
||||
var style = '',
|
||||
@ -273,10 +297,10 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
// only remove the src if we have a script body
|
||||
if (orig_code) {
|
||||
$script.removeAttr('src');
|
||||
}
|
||||
}
|
||||
|
||||
// don't compress already minified code
|
||||
if(!/\bmin\b/.test(src)) {
|
||||
if(!/\bmin\b/.test(src) && !/google-analytics/.test(src)) {
|
||||
try {
|
||||
var ast = jsp.parse(orig_code); // parse code and get the initial AST
|
||||
|
||||
@ -288,6 +312,11 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
final_code = final_code.replace(/<\/script>/gi, '<\\/script>');
|
||||
|
||||
window.$(this).text(final_code);
|
||||
if (src) {
|
||||
inliner.emit('progress', 'compressed ' + src);
|
||||
} else {
|
||||
inliner.emit('progress', 'compressed inline script');
|
||||
}
|
||||
} catch (e) {
|
||||
}
|
||||
}
|
||||
@ -339,9 +368,13 @@ var inliner = module.exports = function (url, options, callback) {
|
||||
});
|
||||
|
||||
});
|
||||
};
|
||||
}
|
||||
|
||||
inliner.version = JSON.parse(require('fs').readFileSync(__dirname + '/package.json').toString()).version;
|
||||
util.inherits(Inliner, events.EventEmitter);
|
||||
|
||||
Inliner.prototype.version = JSON.parse(require('fs').readFileSync(__dirname + '/package.json').toString()).version;
|
||||
|
||||
module.exports = Inliner;
|
||||
|
||||
if (!module.parent) {
|
||||
if (process.argv[2] === undefined) {
|
||||
@ -349,7 +382,7 @@ if (!module.parent) {
|
||||
process.exit();
|
||||
}
|
||||
|
||||
inliner(process.argv[2], function (html) {
|
||||
var inliner = new Inliner(process.argv[2], function (html) {
|
||||
console.log(html);
|
||||
});
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user