Elemental2 ·

Elemental2 provides type checked access to all browser APIs for Java code. This is done by using closure extern files and generating JsTypes, which are part of the new JsInterop specification that is both implemented in GWT and J2CL.

Bazel dependencies

If your project uses Bazel, add this repository as an external dependency in your WORKSPACE file:

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "com_google_elemental2",
    strip_prefix = "elemental2-1.2.1",
    url = "https://github.com/google/elemental2/archive/1.2.1.zip",
)

load("@com_google_elemental2//build_defs:repository.bzl", "load_elemental2_repo_deps")
load_elemental2_repo_deps()

load("@com_google_elemental2//build_defs:workspace.bzl", "setup_elemental2_workspace")
setup_elemental2_workspace()

Now from you can add elemental2 targets as needed to your j2cl_library deps.

Following are the different elemental2 modules and their target names:

module	Bazel targets for J2CL
core	@com_google_elemental2//:elemental2-core-j2cl
dom	@com_google_elemental2//:elemental2-dom-j2cl
promise	@com_google_elemental2//:elemental2-promise-j2cl
indexeddb	@com_google_elemental2//:elemental2-indexeddb-j2cl
svg	@com_google_elemental2//:elemental2-svg-j2cl
webgl	@com_google_elemental2//:elemental2-webgl-j2cl
media	@com_google_elemental2//:elemental2-media-j2cl
webstorage	@com_google_elemental2//:elemental2-webstorage-j2cl

Maven dependencies

If your project uses Maven, add the following maven dependencies in your pom.xml:

<dependency>
  <groupId>com.google.elemental2</groupId>
  <artifactId>${artifact-id}</artifactId>
  <version>1.2.1</version>
</dependency>

module	artifact-id
core	elemental2-core
dom	elemental2-dom
promise	elemental2-promise
indexeddb	elemental2-indexeddb
svg	elemental2-svg
webgl	elemental2-webgl
media	elemental2-media
webstorage	elemental2-webstorage

Download the jar files

You can also download manually the jars files.

module	jar file
core	elemental2-core.jar
dom	elemental2-dom.jar
promise	elemental2-promise.jar
indexeddb	elemental2-indexeddb.jar
svg	elemental2-svg.jar
webgl	elemental2-webgl.jar
media	elemental2-media.jar
webstorage	elemental2-webstorage.jar

GWT

Elemental2 v1.0.0+ requires GWT 2.9 or above.

If you use Elemental2 with GWT, you need to inherit the right gwt module in your gwt.xml file:

module	GWT module name
core	elemental2.core.Core
dom	elemental2.dom.Dom
promise	elemental2.promise.Promise
indexeddb	elemental2.indexeddb.IndexedDb
svg	elemental2.svg.Svg
webgl	elemental2.webgl.WebGl
media	elemental2.media.Media
webstorage	elemental2.webstorage.WebStorage

Build GWT compatible maven jar files

If you want to modify and/or build the last version on your own, follow the instructions below:

• Install Bazelisk:

    $ npm install -g @bazel/bazelisk
    $ alias bazel=bazelisk

• Clone this git repository:

  $ git clone https://github.com/google/elemental2.git

• Run the release script:

      $ cd elemental2
      $ ./maven/release_elemental.sh --version local --no-deploy

The script will output the directory containing the generated jar files that can be used with maven.

Contributing

Please refer to the contributing document.

Licensing

Please refer to the license file.

Disclaimer

This is not an official Google product.