###
`pkg` holds utilities for bundling and launching packages as standalone blobs or
in iframes.
###
htmlToBlob = (htmlString) ->
new Blob [htmlString], type: "text/html; charset=utf-8"
metaTag = (name, content) ->
""
linkTag = (rel, href) ->
""
{lazyLoader} = require "../util/index"
uglifyLoaded = lazyLoader ["https://danielx.net/cdn/uglify/3.0.0.min.js"]
latestRequire = require "./require2"
###
Construct an HTML file for the package.
The default behavior is to load the package's entry point but
that can be modified enter from any file in the package.
It also adds remote dependencies to the HTML head and wraps with
the system launch if present.
This is designed to be simple and general, any magic binding should happen in
the `!system` layer. Here we are only concerned with html tags and setting up
the package with `require`.
`opts`
additionalDependencies: array of additional dependency scripts to include in
the html source. Useful for things like testing libraries, doc formatting, etc.
code: The code snippet to run, defaults to requiring the default package
entry point.
stylesheets: array of urls to add as stylesheet link tags
systemConfig: configuration parameters for the system runtime.
###
htmlForPackage = (pkg, opts={}) ->
metas = [
''
''
]
{config, progenitor} = pkg
config ?= {}
{code, systemConfig} = opts
# by default launch from the packages entry point or main file.
code ?= """
require('./#{pkg.entryPoint or "main"}');
"""
code = systemWrap(pkg, code, systemConfig)
{title, description, lang, iconURL, manifest} = config
if lang
langFragment = " lang=#{JSON.stringify(lang)}"
else
langFragment = ""
if title
metas.push "#{title}"
if description
metas.push metaTag "description", description.replace("\n", " ")
if iconURL
metas.push linkTag "shortcut icon", iconURL
if manifest
metas.push linkTag "manifest", "./manifest.webmanifest"
# Progenitor link can be used to for a built-in "Edit this!" feature
# TODO: Should url be href?
url = pkg.progenitor?.url
if url
metas.push linkTag "progenitor", url
(pkg.stylesheets || []).concat(opts.stylesheets || []).forEach (href) ->
metas.push linkTag "stylesheet", href
htmlToBlob """
#{metas.join("\n ")}
#{dependencyScripts(opts.additionalDependencies, pkg.remoteDependencies)}