remove polymer-cli dependency, run tests with mocha (#13)

* s/wigc/wicg, udpate readme with example, use npm packages.

* update local development section

* test with mocha

* try with previous credentials

* update readme

* remove safari 9

* include Set polyfill, add safari 9 and ie11

* no es2015 in tests

* no es2015 for Fixture either

* no use of Promise

* max 2 min for tests

* remove ie11

* [skip ci] mention usage of Set

* [skip ci] image in new paragraph

* [skip ci] format title

* [skip ci] explain why $blockingElements

.travis.yml

@@ -1,20 +1,5 @@
 language: node_js
-sudo: required
-before_script:
-- npm install -g bower polymer-cli
-- polymer install
 node_js: '6'
-addons:
-  firefox: latest
-  apt:
-    sources:
-    - google-chrome
-    packages:
-    - google-chrome-stable
-script:
-- xvfb-run polymer test
-- if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then polymer test -s 'windows 10/microsoftedge@14' -s 'os x 10.11/safari@9' -s 'macos 10.12/safari@10'; fi
-dist: trusty
 env:
   global:
   - secure: VpPRx1TJb2Kw3+Em4ViH3H2CRHwM+mzliygcWc+kH0k9+iYnKfTOfI+ZsrzE5joCy7qZPAQgNKduvZ9/oDAZrGx/byhFcu5a+/I4sJPQP7kHXVtGK5+WN3Db8uKGkTc5J2539qAhYLmER+gRhazz2c7QQL6zS4cfkYArprEXANJk6neW+kyRN0TYl0YZVp2vW6ZqRxgCv7UDma2u/DIq37Z2T+CzAOYOoZccIWMN4qeEucZZDLf15c+MuTC2sq+BR9t4360Lj4Cp6WPOm5MWpo2pYFHTWOCEviVlzumQh4V9Xb5OXpASoZ7mTHiqXhgkmIWhk527A3GOo2VYPmOH7s/C3VbMabgJhmQVOIIg/IwRnIeTOLbPyOaQFmz2fA9s799noUV7PSCelBISacn0OtYfE6HcWWzICRv7ji6P/lTPOMBarxfqBQx3tgDoGEe019qxEoA3XT6T36MBntg7SKLNu/3Ankt0euC8x65v/zOLpnDfjbzBcgz8p4XCThpwNJNobo0ZMwljHqBqrsd2CDAWixCuVbKoUwuzn8PusG8HYZKCDOUsiRi42Ub0mcubJpqZTx3mcmgb/iAJAf/6s4iropqzpzeAM4sX/CwS/HaqdRa/KW/6jCBVLJApvGOJ862GXpUh7AKgIi0VW1zfMolBSyFEJNV4wFhGfFqsZ3M=

README.md

@@ -1,8 +1,10 @@
-[![Build Status](https://travis-ci.org/PolymerLabs/blockingElements.svg?branch=master)](https://travis-ci.org/PolymerLabs/blockingElements)
+[![Build Status](https://travis-ci.org/PolymerLabs/blocking-elements.svg?branch=master)](https://travis-ci.org/PolymerLabs/blocking-elements)
 
-# `blockingElements` stack API
+# Blocking Elements stack API
 
-Implementation of proposal <https://github.com/whatwg/html/issues/897>
+Implementation of proposal https://github.com/whatwg/html/issues/897
+
+> The polyfill chooses a non-colliding name (`document.$blockingElements` instead of `document.blockingElements`) as the proposal is still work in progress and hasn't yet reached consensus on the semantics and functionality (see [this discussion](https://github.com/PolymerLabs/blocking-elements/pull/1#issuecomment-235102344) for more details).
 
 `document.$blockingElements` manages a stack of elements that inert the interaction outside them.
 
@@ -15,7 +17,7 @@ This polyfill will:
 - search for the path of the element to block up to `document.body`
 - set `inert` to all the siblings of each parent, skipping the parents and the element's distributed content (if any)
 
-Use this polyfill together with the [WICG/inert](https://github.com/WICG/inert) polyfill to disable interactions on the rest of the document. See the [demo page](https://github.com/PolymerLabs/blockingElements/blob/master/demo/index.html) as an example.
+Use this polyfill together with the [wicg-inert](https://github.com/WICG/inert) polyfill to disable interactions on the rest of the document. See the [demo page](https://github.com/PolymerLabs/blocking-elements/blob/master/demo/index.html) as an example.
 
 ## Why not listening to events that trigger focus change?
 
@@ -25,21 +27,51 @@ Wrapping the focus requires to find all the focusable nodes within the top block
 
 This approach doesn't allow the focus to move outside the window (e.g. to the browser's url bar, dev console if opened, etc.), and is less robust when used with assistive technology (e.g. android talkback allows to move focus with swipe on screen, Apple Voiceover allows to move focus with special keyboard combinations).
 
-## Install & run locally
+## Install & use
 
-Install the dependencies with `bower install`.
+Blocking Elements relies on the [`inert` attribute](https://github.com/WICG/inert) and uses [`Set` objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set), so make sure to include their polyfills as needed.
 
-Serve the resources via the [polymer CLI](https://github.com/Polymer/polymer-cli):
 ```bash
-$ npm install -g polymer-cli
-$ polymer serve
+npm install --save babel-polyfill
+npm install --save wicg-inert
+npm install --save blocking-elements
+```
+
+```html
+<script src="./node_modules/babel-polyfill/dist/polyfill.min.js"></script>
+<script src="./node_modules/wicg-inert/dist/inert.min.js"></script>
+<script src="./node_modules/blocking-elements/dist/blocking-elements.min.js"></script>
+
+<div id="container">
+  <button onclick="makeBlocking(container)">make blocking</button> 
+  <button onclick="undoBlocking(container)">undo blocking</button> 
+</div>
+
+<button>some button</button>
+
+<script>
+  function makeBlocking(element) {
+    document.$blockingElements.push(element);
+  }
+  function undoBlocking(element) {
+    document.$blockingElements.remove(element);
+  }
+</script>
 ```
 
+## Local development
+
+Install the dependencies with `npm install` and serve the resources.
+
+Run the tests locally by navigating to http://localhost:8080/test/
+
 ## Performance
 
 Performance is dependent on the `inert` polyfill performance. Chrome recently landed [the `inert` attribute implementation](https://codereview.chromium.org/2088453002/) behind a flag.
 
-Let's compare the how long it takes to toggle the deepest `x-trap-focus` inside nested `x-b` of the demo page (<http://localhost:8080/components/blockingElements/demo/ce.html?ce=v1>) ![results](https://cloud.githubusercontent.com/assets/6173664/17538133/914f365a-5e57-11e6-9b91-1c6b7eb22d57.png).
+Let's compare the how long it takes to toggle the deepest `x-trap-focus` inside nested `x-b` of the demo page (<http://localhost:8080/demo/ce.html?ce=v1>) 
+
+![results](https://cloud.githubusercontent.com/assets/6173664/17538133/914f365a-5e57-11e6-9b91-1c6b7eb22d57.png).
 
 `blockingElements` with native inert is **~15x faster** than polyfilled inert 🎉 🎉 🎉
 

demo/ce.html

@@ -16,9 +16,10 @@
 <head>
   <meta charset="utf-8">
   <title>blockingElements polyfill test page</title>
-  <script src="../../webcomponentsjs/webcomponents-loader.js"></script>
-  <script src="../../inert/dist/inert.js"></script>
-  <script src="../dist/blocking-elements.js"></script>
+  <script src="../node_modules/babel-polyfill/dist/polyfill.min.js"></script>
+  <script src="../node_modules/@webcomponents/webcomponentsjs/webcomponents-loader.js"></script>
+  <script src="../node_modules/wicg-inert/dist/inert.js"></script>
+  <!-- blocking-elements polyfill imported by x-trap-focus.html -->
 
   <script>
     // Dynamic import according to query param ce=v0|v1.

demo/index.html

@@ -16,7 +16,8 @@
 <head>
   <meta charset="utf-8">
   <title>blockingElements polyfill test page</title>
-  <script src="../../inert/dist/inert.js"></script>
+  <script src="../node_modules/babel-polyfill/dist/polyfill.min.js"></script>
+  <script src="../node_modules/wicg-inert/dist/inert.js"></script>
   <script src="../dist/blocking-elements.js"></script>
 
   <style>

demo/nytimes.html

@@ -16,7 +16,8 @@
 <head>
   <meta charset="utf-8">
   <title>blockingElements polyfill test page</title>
-  <script src="../../inert/dist/inert.js"></script>
+  <script src="../node_modules/babel-polyfill/dist/polyfill.min.js"></script>
+  <script src="../node_modules/wicg-inert/dist/inert.js"></script>
   <script src="../dist/blocking-elements.js"></script>
 
   <style>