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packages/polymer/README.md

+Polymer.dart
+============
+
+Polymer.dart is a set of comprehensive UI and utility components
+for building web applications.
+With Polymer.dart's custom elements, templating, data binding,
+and other features,
+you can quickly build structured, encapsulated, client-side web apps.
+
+Polymer.dart is a Dart port of
+[Polymer][polymer] created and maintained by the Dart team.
+The Dart team is collaborating with the Polymer team to ensure that polymer.dart
+elements and polyfills are fully compatible with Polymer.
+
+Polymer.dart replaces Web UI, which has been deprecated.
+
+
+Learn More
+----------
+
+* The [Polymer.dart][home_page] homepage
+contains a list of features, project status,
+installation instructions, tips for upgrading from Web UI,
+and links to other documentation.
+
+* See our [TodoMVC][] example by opening up the Dart Editor's Welcome Page and
+selecting "TodoMVC".
+
+* For more information about Dart, see <http://www.dartlang.org/>.
+
+* When you use this package,
+you automatically get the
+[polymer_expressions][] package,
+which provides an expressive syntax for use with templates.
+
+
+Try It Now
+-----------
+Add the polymer.dart package to your pubspec.yaml file:
+
+```yaml
+dependencies:
+  polymer: ">=0.16.0 <0.17.0"
+```
+
+Instead of using `any`, we recommend using version ranges to avoid getting your
+project broken on each release. Using a version range lets you upgrade your
+package at your own pace. You can find the latest version number at
+<https://pub.dartlang.org/packages/polymer>.
+
+
+Building and Deploying
+----------------------
+
+To build a deployable version of your app, add the polymer transformers to your
+pubspec.yaml file:
+
+```yaml
+transformers:
+- polymer
+```
+
+Then, run `pub build`.  The polymer transformers assume all files under `web`
+are possible entry points, this can be adjusted with arguments in your
+pubspec.yaml file. For example, you can say only `web/index.html` is an entry
+point as follows:
+
+```yaml
+transformers:
+- polymer:
+    entry_points: web/index.html
+```
+
+Here is a list of arguments used by the polymer transformers:
+* js: whether to load JS code directly. By default polymer converts your app's
+  html file to load the compiled JS code directly. Setting this parameter to
+  false will keep a dart script tag and the `dart.js` script tag on the page.
+
+* csp: whether to load a Content Security Policy (CSP) compliant JS file.
+  Dart2js generates two JS files, one that is not CSP compilant and one that is.
+  By default, polymer uses the former becuase it's likely more efficient, but
+  you can choose the latter by setting this flag.
+
+* entry_points: can be a list of entry points or, for convenience, a single
+  entry point as shown above.
+
+For example, this specification includes 2 entrypoints and chooses the CSP
+compliant JS file:
+
+```yaml
+transformers:
+- polymer:
+    entry_points:
+    - web/index.html
+    - web/index2.html
+    csp: true
+```
+
+Testing
+-------
+
+Polymer elements can be tested using either the original `unittest` or new `test` packages. In both cases the easiest way to create a test is by using the default main from `polymer/init.dart` and then defining all your tests inside of a method marked with an `@whenPolymerReady` annotation.
+
+```dart
+import 'package:polymer/polymer.dart';
+export 'package:polymer/init.dart';
+
+@whenPolymerReady
+void runTests() {
+  // Define your tests here.
+}
+```
+
+You will also need to define a custom html file for your test (see the README for the testing package you are using for more information on this).
+
+**Note**: If you are using the new `test` package, it is important that you add the `test` transformer after the polymer transformer, so it should look roughly like this:
+
+```yaml
+transformer:
+- polymer:
+    entry_points:
+      - test/my_test.html
+- test/pub_serve:
+    $include: test/**_test{.*,}.dart
+```
+
+Contacting Us
+-------------
+
+Please file issues in our [Issue Tracker][issues] or contact us on the
+[Dart Web UI mailing list][mailinglist].
+
+We also have the [Web UI development list][devlist] for discussions about
+internals of the code, code reviews, etc.
+
+[wc]: http://dvcs.w3.org/hg/webcomponents/raw-file/tip/explainer/index.html
+[pub]: http://www.dartlang.org/docs/pub-package-manager/
+[cs]: http://www.chromium.org/developers/testing/webkit-layout-tests
+[cs_lucid]: http://gsdview.appspot.com/dartium-archive/continuous/drt-lucid64.zip
+[cs_mac]: http://gsdview.appspot.com/dartium-archive/continuous/drt-mac.zip
+[cs_win]: http://gsdview.appspot.com/dartium-archive/continuous/drt-win.zip
+[dartium_src]: http://code.google.com/p/dart/wiki/BuildingDartium
+[TodoMVC]: http://todomvc.com/
+[issues]: https://github.com/dart-lang/polymer-dart/issues/new
+[mailinglist]: https://groups.google.com/a/dartlang.org/forum/?fromgroups#!forum/web-ui
+[devlist]: https://groups.google.com/a/dartlang.org/forum/?fromgroups#!forum/web-ui-dev
+[overview]: http://www.dartlang.org/articles/dart-web-components/
+[tools]: https://www.dartlang.org/articles/dart-web-components/tools.html
+[spec]: https://www.dartlang.org/articles/dart-web-components/spec.html
+[features]: https://www.dartlang.org/articles/dart-web-components/summary.html
+[home_page]: https://www.dartlang.org/polymer-dart/
+[polymer_expressions]: http://pub.dartlang.org/packages/polymer_expressions
+[polymer]: http://www.polymer-project.org/