From 476e5568d051c6a71f5ebee5f4c2ee887b6af3ee Mon Sep 17 00:00:00 2001
From: cha0s <cha0s@cha0s.io>
Date: Sat, 8 Sep 2018 22:55:42 -0500
Subject: [PATCH] chore: initial

---
 index.js     | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++
 package.json | 12 ++++++++
 yarn.lock    | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 182 insertions(+)
 create mode 100644 index.js
 create mode 100644 package.json
 create mode 100644 yarn.lock

diff --git a/index.js b/index.js
new file mode 100644
index 0000000..9d9706d
--- /dev/null
+++ b/index.js
@@ -0,0 +1,84 @@
+
+import * as css from 'css';
+import React from 'react';
+
+let newId = 0;
+const map = new WeakMap();
+let sheet = null;
+
+// Ensure styles exist for a component.
+const ensureComponentStyles = (constructor, styles) => {
+
+  if (!window || !styles || map.has(constructor)) {
+    return;
+  }
+  newId += 1;
+  const id = newId.toString(36);
+  map.set(constructor, id);
+
+  // Ensure sheet exists.
+  if (!sheet) {
+    sheet = window.document.createElement('style');
+    sheet.id = 'stylist-styles';
+    window.document.getElementsByTagName('head')[0].appendChild(sheet);
+  }
+
+  // All rules made component-specific.
+  for (const style of styles) {
+
+    const ast = css.parse(style);
+    ast.stylesheet.rules = mapStyleRulesTree(ast.stylesheet.rules, id);
+    sheet.innerHTML += css.stringify(ast);
+  }
+}
+
+const mapStyleRulesTree = (rules, id) => rules.map((rule) => {
+
+  // Recur for mediaqueries.
+  if ('media' === rule.type) {
+    rule.rules = mapStyleRulesTree(rule.rules, id);
+  }
+
+  if (!rule.selectors) {
+    return rule;
+  }
+
+  return {
+    ...rule,
+    ...{
+      selectors: rule.selectors.map((rule) =>
+        `[data-component-style="${id}"] ${rule}`
+      ),
+    },
+  };
+});
+
+export default function Stylist(Component, styles) {
+  if (!Array.isArray(styles)) {
+    styles = [styles];
+  }
+
+  const createRenderFunction = (constructor, markupFn) => function() {
+    ensureComponentStyles(constructor, styles);
+
+    const markup = markupFn.apply(this, arguments);
+    const id = map.get(constructor);
+    if (!id) {
+      return markup;
+    }
+    return <ins data-component-style={id}>{markup}</ins>;
+  }
+
+  if (Component.prototype.render) {
+    class StylistComponent extends Component {
+    }
+    StylistComponent.prototype.render = createRenderFunction(
+      Component, Component.prototype.render
+    );
+    return StylistComponent;
+  }
+  else {
+    return createRenderFunction(Component, Component);
+  }
+}
+
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..d66cd04
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "contempo",
+  "version": "1.0.0",
+  "description": "Component styles from text",
+  "main": "index.js",
+  "author": "cha0s",
+  "license": "MIT",
+  "dependencies": {
+    "css": "^2.2.4",
+    "react": "^16.5.0"
+  }
+}
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 0000000..12d3342
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,86 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+atob@^2.1.1:
+  version "2.1.2"
+  resolved "https://npm.i12e.cha0s.io/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
+
+css@^2.2.4:
+  version "2.2.4"
+  resolved "https://npm.i12e.cha0s.io/css/-/css-2.2.4.tgz#c646755c73971f2bba6a601e2cf2fd71b1298929"
+  dependencies:
+    inherits "^2.0.3"
+    source-map "^0.6.1"
+    source-map-resolve "^0.5.2"
+    urix "^0.1.0"
+
+decode-uri-component@^0.2.0:
+  version "0.2.0"
+  resolved "https://npm.i12e.cha0s.io/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+
+inherits@^2.0.3:
+  version "2.0.3"
+  resolved "https://npm.i12e.cha0s.io/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+
+"js-tokens@^3.0.0 || ^4.0.0":
+  version "4.0.0"
+  resolved "https://npm.i12e.cha0s.io/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+
+loose-envify@^1.1.0, loose-envify@^1.3.1:
+  version "1.4.0"
+  resolved "https://npm.i12e.cha0s.io/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
+  dependencies:
+    js-tokens "^3.0.0 || ^4.0.0"
+
+object-assign@^4.1.1:
+  version "4.1.1"
+  resolved "https://npm.i12e.cha0s.io/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
+prop-types@^15.6.2:
+  version "15.6.2"
+  resolved "https://npm.i12e.cha0s.io/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
+  dependencies:
+    loose-envify "^1.3.1"
+    object-assign "^4.1.1"
+
+react@^16.5.0:
+  version "16.5.0"
+  resolved "https://npm.i12e.cha0s.io/react/-/react-16.5.0.tgz#f2c1e754bf9751a549d9c6d9aca41905beb56575"
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+    schedule "^0.3.0"
+
+resolve-url@^0.2.1:
+  version "0.2.1"
+  resolved "https://npm.i12e.cha0s.io/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
+
+schedule@^0.3.0:
+  version "0.3.0"
+  resolved "https://npm.i12e.cha0s.io/schedule/-/schedule-0.3.0.tgz#1be2ab2fc2e768536269ce7326efb478d6c045e8"
+  dependencies:
+    object-assign "^4.1.1"
+
+source-map-resolve@^0.5.2:
+  version "0.5.2"
+  resolved "https://npm.i12e.cha0s.io/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
+  dependencies:
+    atob "^2.1.1"
+    decode-uri-component "^0.2.0"
+    resolve-url "^0.2.1"
+    source-map-url "^0.4.0"
+    urix "^0.1.0"
+
+source-map-url@^0.4.0:
+  version "0.4.0"
+  resolved "https://npm.i12e.cha0s.io/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
+
+source-map@^0.6.1:
+  version "0.6.1"
+  resolved "https://npm.i12e.cha0s.io/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
+urix@^0.1.0:
+  version "0.1.0"
+  resolved "https://npm.i12e.cha0s.io/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"