Add @polkadot/extension-dapp (#28)

* Add @polkadot/extension-dapp

* Add skeleton READMEs

* Extend with additional helpers

* Adapdt for new name-less interface

* Additional comments

* Readability

* Flatter promise

* Naming consistency

* Readability

.travis.yml

@@ -1,14 +1,28 @@
 language: node_js
 node_js:
   - "10"
+# env:
+#   global:
+#     - CC_TEST_REPORTER_ID=2e7a4e12a9039fd1b3721e79e2efa92e1d4925af092679f3d106428e01373436
+#     - GH_PAGES_SRC="build-docs"
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+  - chmod +x ./cc-test-reporter
   - export PATH=$HOME/.yarn/bin::$(yarn global bin):$PATH
 cache:
   yarn: true
   directories:
     - node_modules
-install:
+# before_script:
-  - yarn
+#   - ./cc-test-reporter before-build
 script:
   - yarn polkadot-dev-travis-build
+# after_script:
+#   - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
+deploy:
+  skip_cleanup: true
+  provider: script
+  script: yarn polkadot-dev-travis-deploy
+  on:
+    branch: master

packages/extension-dapp/LICENSE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                    http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+  "License" shall mean the terms and conditions for use, reproduction,
+  and distribution as defined by Sections 1 through 9 of this document.
+
+  "Licensor" shall mean the copyright owner or entity authorized by
+  the copyright owner that is granting the License.
+
+  "Legal Entity" shall mean the union of the acting entity and all
+  other entities that control, are controlled by, or are under common
+  control with that entity. For the purposes of this definition,
+  "control" means (i) the power, direct or indirect, to cause the
+  direction or management of such entity, whether by contract or
+  otherwise, or (ii) ownership of fifty percent (50%) or more of the
+  outstanding shares, or (iii) beneficial ownership of such entity.
+
+  "You" (or "Your") shall mean an individual or Legal Entity
+  exercising permissions granted by this License.
+
+  "Source" form shall mean the preferred form for making modifications,
+  including but not limited to software source code, documentation
+  source, and configuration files.
+
+  "Object" form shall mean any form resulting from mechanical
+  transformation or translation of a Source form, including but
+  not limited to compiled object code, generated documentation,
+  and conversions to other media types.
+
+  "Work" shall mean the work of authorship, whether in Source or
+  Object form, made available under the License, as indicated by a
+  copyright notice that is included in or attached to the work
+  (an example is provided in the Appendix below).
+
+  "Derivative Works" shall mean any work, whether in Source or Object
+  form, that is based on (or derived from) the Work and for which the
+  editorial revisions, annotations, elaborations, or other modifications
+  represent, as a whole, an original work of authorship. For the purposes
+  of this License, Derivative Works shall not include works that remain
+  separable from, or merely link (or bind by name) to the interfaces of,
+  the Work and Derivative Works thereof.
+
+  "Contribution" shall mean any work of authorship, including
+  the original version of the Work and any modifications or additions
+  to that Work or Derivative Works thereof, that is intentionally
+  submitted to Licensor for inclusion in the Work by the copyright owner
+  or by an individual or Legal Entity authorized to submit on behalf of
+  the copyright owner. For the purposes of this definition, "submitted"
+  means any form of electronic, verbal, or written communication sent
+  to the Licensor or its representatives, including but not limited to
+  communication on electronic mailing lists, source code control systems,
+  and issue tracking systems that are managed by, or on behalf of, the
+  Licensor for the purpose of discussing and improving the Work, but
+  excluding communication that is conspicuously marked or otherwise
+  designated in writing by the copyright owner as "Not a Contribution."
+
+  "Contributor" shall mean Licensor and any individual or Legal Entity
+  on behalf of whom a Contribution has been received by Licensor and
+  subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  copyright license to reproduce, prepare Derivative Works of,
+  publicly display, publicly perform, sublicense, and distribute the
+  Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  (except as stated in this section) patent license to make, have made,
+  use, offer to sell, sell, import, and otherwise transfer the Work,
+  where such license applies only to those patent claims licensable
+  by such Contributor that are necessarily infringed by their
+  Contribution(s) alone or by combination of their Contribution(s)
+  with the Work to which such Contribution(s) was submitted. If You
+  institute patent litigation against any entity (including a
+  cross-claim or counterclaim in a lawsuit) alleging that the Work
+  or a Contribution incorporated within the Work constitutes direct
+  or contributory patent infringement, then any patent licenses
+  granted to You under this License for that Work shall terminate
+  as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+  Work or Derivative Works thereof in any medium, with or without
+  modifications, and in Source or Object form, provided that You
+  meet the following conditions:
+
+  (a) You must give any other recipients of the Work or
+      Derivative Works a copy of this License; and
+
+  (b) You must cause any modified files to carry prominent notices
+      stating that You changed the files; and
+
+  (c) You must retain, in the Source form of any Derivative Works
+      that You distribute, all copyright, patent, trademark, and
+      attribution notices from the Source form of the Work,
+      excluding those notices that do not pertain to any part of
+      the Derivative Works; and
+
+  (d) If the Work includes a "NOTICE" text file as part of its
+      distribution, then any Derivative Works that You distribute must
+      include a readable copy of the attribution notices contained
+      within such NOTICE file, excluding those notices that do not
+      pertain to any part of the Derivative Works, in at least one
+      of the following places: within a NOTICE text file distributed
+      as part of the Derivative Works; within the Source form or
+      documentation, if provided along with the Derivative Works; or,
+      within a display generated by the Derivative Works, if and
+      wherever such third-party notices normally appear. The contents
+      of the NOTICE file are for informational purposes only and
+      do not modify the License. You may add Your own attribution
+      notices within Derivative Works that You distribute, alongside
+      or as an addendum to the NOTICE text from the Work, provided
+      that such additional attribution notices cannot be construed
+      as modifying the License.
+
+  You may add Your own copyright statement to Your modifications and
+  may provide additional or different license terms and conditions
+  for use, reproduction, or distribution of Your modifications, or
+  for any such Derivative Works as a whole, provided Your use,
+  reproduction, and distribution of the Work otherwise complies with
+  the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+  any Contribution intentionally submitted for inclusion in the Work
+  by You to the Licensor shall be under the terms and conditions of
+  this License, without any additional terms or conditions.
+  Notwithstanding the above, nothing herein shall supersede or modify
+  the terms of any separate license agreement you may have executed
+  with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+  names, trademarks, service marks, or product names of the Licensor,
+  except as required for reasonable and customary use in describing the
+  origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+  agreed to in writing, Licensor provides the Work (and each
+  Contributor provides its Contributions) on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied, including, without limitation, any warranties or conditions
+  of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+  PARTICULAR PURPOSE. You are solely responsible for determining the
+  appropriateness of using or redistributing the Work and assume any
+  risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+  whether in tort (including negligence), contract, or otherwise,
+  unless required by applicable law (such as deliberate and grossly
+  negligent acts) or agreed to in writing, shall any Contributor be
+  liable to You for damages, including any direct, indirect, special,
+  incidental, or consequential damages of any character arising as a
+  result of this License or out of the use or inability to use the
+  Work (including but not limited to damages for loss of goodwill,
+  work stoppage, computer failure or malfunction, or any and all
+  other commercial damages or losses), even if such Contributor
+  has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+  the Work or Derivative Works thereof, You may choose to offer,
+  and charge a fee for, acceptance of support, warranty, indemnity,
+  or other liability obligations and/or rights consistent with this
+  License. However, in accepting such obligations, You may act only
+  on Your own behalf and on Your sole responsibility, not on behalf
+  of any other Contributor, and only if You agree to indemnify,
+  defend, and hold each Contributor harmless for any liability
+  incurred by, or claims asserted against, such Contributor by reason
+  of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+  To apply the Apache License to your work, attach the following
+  boilerplate notice, with the fields enclosed by brackets "[]"
+  replaced with your own identifying information. (Don't include
+  the brackets!)  The text should be enclosed in the appropriate
+  comment syntax for the file format. We also recommend that a
+  file or class name and description of purpose be included on the
+  same "printed page" as the copyright notice for easier
+  identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

packages/extension-dapp/README.md

@@ -0,0 +1,19 @@
+# @polkadot/extension-dapp
+
+A basic injected that manipulates the `window.injectedWeb3` to extract all the providers added to the page.
+
+## Usage
+
+```js
+import { web3Accounts, web3Enable, web3FromAddress } from '@polkadot/extension-dapp';
+
+// returns an array of all the injected sources
+// (this needs to be called first, before other requests)
+const allInjected = await web3Enable(...my dapp name...);
+
+// returns an array of { address, meta: { name, source } }
+const allAccounts = await web3Accounts();
+
+// finds an injector for an address
+const injector = await web3FromAddress(...address...)
+```

packages/extension-dapp/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@polkadot/extension-dapp",
+  "description": "An injector dapps that manages the injected environment",
+  "version": "0.1.1-beta.0",
+  "author": "Jaco Greeff <jacogr@gmail.com>",
+  "license": "Apache-2",
+  "dependencies": {
+  },
+  "devDependencies": {
+  },
+  "peerDependencies": {
+    "@polkadot/api": "*"
+  }
+}

packages/extension-dapp/src/index.ts

@@ -0,0 +1,110 @@
+// Copyright 2019 @polkadot/extension-dapp authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { InjectedAccountWithMeta, InjectedExtension, InjectedExtensionInfo, InjectedWindow } from './types';
+
+// just a helper (otherwise we cast all-over, so shorter and more readable)
+const injectedWeb3 = (window as InjectedWindow).injectedWeb3;
+
+// have we found the window.injectedWeb3
+const isWeb3Injected = !!injectedWeb3 && Object.keys(injectedWeb3).length !== 0;
+
+// we keep the last promise created around (for queries)
+let web3EnablePromise: Promise<Array<InjectedExtension>> | null = null;
+
+export { isWeb3Injected, web3EnablePromise };
+
+// enables all the providers found on the injected window interface
+export function web3Enable (originName: string): Promise<Array<InjectedExtension>> {
+  web3EnablePromise = Promise
+    .all(
+      Object
+        .entries(injectedWeb3)
+        .map(([name, { enable, version }]) =>
+          Promise
+            .all([Promise.resolve({ name, version }), enable(originName)])
+            .catch(() => [{ name, version }, null] as [InjectedExtensionInfo, null])
+        )
+    )
+    .then((values) =>
+      values
+        .filter(([, ext]) => ext !== null)
+        .map(([info, ext]) => ({ ...info, ...ext } as InjectedExtension))
+    )
+    .catch(() => [] as Array<InjectedExtension>)
+    .then((values) => {
+      const names = values.map(({ name, version }) => `${name}/${version}`);
+
+      console.log(`web3Enable: Enabled ${values.length} extensions ${names.join(', ')}`);
+
+      return values;
+    });
+
+  return web3EnablePromise;
+}
+
+// retrieve all the accounts accross all providers
+export async function web3Accounts (): Promise<Array<InjectedAccountWithMeta>> {
+  if (!web3EnablePromise) {
+    throw new Error(`web3Accounts: web3Enable(originName) needs to be called before web3Accounts`);
+  }
+
+  const accounts: Array<InjectedAccountWithMeta> = [];
+  const injected = await web3EnablePromise;
+  const retrieved = await Promise.all(
+    injected.map(async ({ accounts, name: source }) => {
+      try {
+        const list = await accounts.get();
+
+        return list.map(({ address, name }) => ({
+          address,
+          meta: { name, source }
+        }));
+      } catch (error) {
+        // cannot handle this one
+        return [];
+      }
+    })
+  );
+
+  retrieved.forEach((result) => accounts.push(...result));
+
+  const addresses = accounts.map(({ address }) => address);
+
+  console.log(`web3Accounts: Found ${accounts.length} addresses ${addresses.join(', ')}`);
+
+  return accounts;
+}
+
+// find a specific provider based on an address
+export async function web3FromAddress (address: string): Promise<InjectedExtension> {
+  if (!web3EnablePromise) {
+    throw new Error(`web3FromAddress: web3Enable(originName) needs to be called before web3FromAddress`);
+  }
+
+  const accounts = await web3Accounts();
+  const found = address && accounts.find((account) => account.address === address);
+
+  if (!found) {
+    throw new Error(`web3FromAddress: Unable to find injected ${address}`);
+  }
+
+  return web3FromSource(found.meta.source);
+}
+
+// find a specific provider based on the name
+export async function web3FromSource (source: string): Promise<InjectedExtension> {
+  if (!web3EnablePromise) {
+    throw new Error(`web3FromSource: web3Enable(originName) needs to be called before web3FromSource`);
+  }
+
+  const sources = await web3EnablePromise;
+  const found = source && sources.find(({ name }) => name === source);
+
+  if (!found) {
+    throw new Error(`web3FromSource: Unable to find an injected ${source}`);
+  }
+
+  return found;
+}

packages/extension-dapp/src/types.ts

@@ -0,0 +1,47 @@
+// Copyright 2019 @polkadot/extension-dapp authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { Signer } from '@polkadot/api/types';
+
+export interface InjectedAccount {
+  address: string;
+  name: string;
+}
+
+export interface InjectedAccountWithMeta {
+  address: string;
+  meta: {
+    name: string,
+    source: string
+  };
+}
+
+export interface InjectedAccounts {
+  get: () => Promise<Array<InjectedAccount>>;
+}
+
+export interface InjectedSigner extends Signer {}
+
+export interface InjectedExtensionInfo {
+  name: string;
+  version: string;
+}
+
+export interface Injected {
+  accounts: InjectedAccounts;
+  signer: InjectedSigner;
+}
+
+export interface InjectedWindowProvider {
+  enable: (origin: string) => Promise<Injected>;
+  version: string;
+}
+
+export type InjectedWindow = Window & {
+  injectedWeb3: {
+    [index: string]: InjectedWindowProvider
+  }
+};
+
+export type InjectedExtension = InjectedExtensionInfo & Injected;

packages/extension-ui/LICENSE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                    http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+  "License" shall mean the terms and conditions for use, reproduction,
+  and distribution as defined by Sections 1 through 9 of this document.
+
+  "Licensor" shall mean the copyright owner or entity authorized by
+  the copyright owner that is granting the License.
+
+  "Legal Entity" shall mean the union of the acting entity and all
+  other entities that control, are controlled by, or are under common
+  control with that entity. For the purposes of this definition,
+  "control" means (i) the power, direct or indirect, to cause the
+  direction or management of such entity, whether by contract or
+  otherwise, or (ii) ownership of fifty percent (50%) or more of the
+  outstanding shares, or (iii) beneficial ownership of such entity.
+
+  "You" (or "Your") shall mean an individual or Legal Entity
+  exercising permissions granted by this License.
+
+  "Source" form shall mean the preferred form for making modifications,
+  including but not limited to software source code, documentation
+  source, and configuration files.
+
+  "Object" form shall mean any form resulting from mechanical
+  transformation or translation of a Source form, including but
+  not limited to compiled object code, generated documentation,
+  and conversions to other media types.
+
+  "Work" shall mean the work of authorship, whether in Source or
+  Object form, made available under the License, as indicated by a
+  copyright notice that is included in or attached to the work
+  (an example is provided in the Appendix below).
+
+  "Derivative Works" shall mean any work, whether in Source or Object
+  form, that is based on (or derived from) the Work and for which the
+  editorial revisions, annotations, elaborations, or other modifications
+  represent, as a whole, an original work of authorship. For the purposes
+  of this License, Derivative Works shall not include works that remain
+  separable from, or merely link (or bind by name) to the interfaces of,
+  the Work and Derivative Works thereof.
+
+  "Contribution" shall mean any work of authorship, including
+  the original version of the Work and any modifications or additions
+  to that Work or Derivative Works thereof, that is intentionally
+  submitted to Licensor for inclusion in the Work by the copyright owner
+  or by an individual or Legal Entity authorized to submit on behalf of
+  the copyright owner. For the purposes of this definition, "submitted"
+  means any form of electronic, verbal, or written communication sent
+  to the Licensor or its representatives, including but not limited to
+  communication on electronic mailing lists, source code control systems,
+  and issue tracking systems that are managed by, or on behalf of, the
+  Licensor for the purpose of discussing and improving the Work, but
+  excluding communication that is conspicuously marked or otherwise
+  designated in writing by the copyright owner as "Not a Contribution."
+
+  "Contributor" shall mean Licensor and any individual or Legal Entity
+  on behalf of whom a Contribution has been received by Licensor and
+  subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  copyright license to reproduce, prepare Derivative Works of,
+  publicly display, publicly perform, sublicense, and distribute the
+  Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+  this License, each Contributor hereby grants to You a perpetual,
+  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+  (except as stated in this section) patent license to make, have made,
+  use, offer to sell, sell, import, and otherwise transfer the Work,
+  where such license applies only to those patent claims licensable
+  by such Contributor that are necessarily infringed by their
+  Contribution(s) alone or by combination of their Contribution(s)
+  with the Work to which such Contribution(s) was submitted. If You
+  institute patent litigation against any entity (including a
+  cross-claim or counterclaim in a lawsuit) alleging that the Work
+  or a Contribution incorporated within the Work constitutes direct
+  or contributory patent infringement, then any patent licenses
+  granted to You under this License for that Work shall terminate
+  as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+  Work or Derivative Works thereof in any medium, with or without
+  modifications, and in Source or Object form, provided that You
+  meet the following conditions:
+
+  (a) You must give any other recipients of the Work or
+      Derivative Works a copy of this License; and
+
+  (b) You must cause any modified files to carry prominent notices
+      stating that You changed the files; and
+
+  (c) You must retain, in the Source form of any Derivative Works
+      that You distribute, all copyright, patent, trademark, and
+      attribution notices from the Source form of the Work,
+      excluding those notices that do not pertain to any part of
+      the Derivative Works; and
+
+  (d) If the Work includes a "NOTICE" text file as part of its
+      distribution, then any Derivative Works that You distribute must
+      include a readable copy of the attribution notices contained
+      within such NOTICE file, excluding those notices that do not
+      pertain to any part of the Derivative Works, in at least one
+      of the following places: within a NOTICE text file distributed
+      as part of the Derivative Works; within the Source form or
+      documentation, if provided along with the Derivative Works; or,
+      within a display generated by the Derivative Works, if and
+      wherever such third-party notices normally appear. The contents
+      of the NOTICE file are for informational purposes only and
+      do not modify the License. You may add Your own attribution
+      notices within Derivative Works that You distribute, alongside
+      or as an addendum to the NOTICE text from the Work, provided
+      that such additional attribution notices cannot be construed
+      as modifying the License.
+
+  You may add Your own copyright statement to Your modifications and
+  may provide additional or different license terms and conditions
+  for use, reproduction, or distribution of Your modifications, or
+  for any such Derivative Works as a whole, provided Your use,
+  reproduction, and distribution of the Work otherwise complies with
+  the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+  any Contribution intentionally submitted for inclusion in the Work
+  by You to the Licensor shall be under the terms and conditions of
+  this License, without any additional terms or conditions.
+  Notwithstanding the above, nothing herein shall supersede or modify
+  the terms of any separate license agreement you may have executed
+  with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+  names, trademarks, service marks, or product names of the Licensor,
+  except as required for reasonable and customary use in describing the
+  origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+  agreed to in writing, Licensor provides the Work (and each
+  Contributor provides its Contributions) on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied, including, without limitation, any warranties or conditions
+  of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+  PARTICULAR PURPOSE. You are solely responsible for determining the
+  appropriateness of using or redistributing the Work and assume any
+  risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+  whether in tort (including negligence), contract, or otherwise,
+  unless required by applicable law (such as deliberate and grossly
+  negligent acts) or agreed to in writing, shall any Contributor be
+  liable to You for damages, including any direct, indirect, special,
+  incidental, or consequential damages of any character arising as a
+  result of this License or out of the use or inability to use the
+  Work (including but not limited to damages for loss of goodwill,
+  work stoppage, computer failure or malfunction, or any and all
+  other commercial damages or losses), even if such Contributor
+  has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+  the Work or Derivative Works thereof, You may choose to offer,
+  and charge a fee for, acceptance of support, warranty, indemnity,
+  or other liability obligations and/or rights consistent with this
+  License. However, in accepting such obligations, You may act only
+  on Your own behalf and on Your sole responsibility, not on behalf
+  of any other Contributor, and only if You agree to indemnify,
+  defend, and hold each Contributor harmless for any liability
+  incurred by, or claims asserted against, such Contributor by reason
+  of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+  To apply the Apache License to your work, attach the following
+  boilerplate notice, with the fields enclosed by brackets "[]"
+  replaced with your own identifying information. (Don't include
+  the brackets!)  The text should be enclosed in the appropriate
+  comment syntax for the file format. We also recommend that a
+  file or class name and description of purpose be included on the
+  same "printed page" as the copyright notice for easier
+  identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

packages/extension-ui/README.md

@@ -0,0 +1,3 @@
+# @polkadot/extension-ui
+
+UI for the `@polkadot/extension`

packages/extension/LICENSE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
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+
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+limitations under the License.

packages/extension/README.md

@@ -0,0 +1,3 @@
+# @polkadot/extension
+
+A signing extension

packages/extension/src/inject/Accounts.ts

@@ -2,16 +2,17 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import { Accounts as IAccounts, Account as IAccount, SendRequest } from './types';
+import { InjectedAccounts, InjectedAccount } from '@polkadot/extension-dapp/types';
+import { SendRequest } from './types';
 
 let sendRequest: SendRequest;
 
-export default class Accounts implements IAccounts {
+export default class Accounts implements InjectedAccounts {
   constructor (_sendRequest: SendRequest) {
     sendRequest = _sendRequest;
   }
 
-  get (): Promise<Array<IAccount>> {
+  get (): Promise<Array<InjectedAccount>> {
     return sendRequest('accounts.list');
   }
 }

packages/extension/src/inject/Injected.ts

@@ -2,12 +2,13 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import { Injected as IInjected, SendRequest } from './types';
+import { Injected as InjectedInjected } from '@polkadot/extension-dapp/types';
+import { SendRequest } from './types';
 
 import Accounts from './Accounts';
 import Signer from './Signer';
 
-export default class Injected implements IInjected {
+export default class Injected implements InjectedInjected {
   readonly accounts: Accounts;
   readonly signer: Signer;
 

packages/extension/src/inject/Signer.ts

@@ -3,15 +3,16 @@
 // of the Apache-2.0 license. See the LICENSE file for details.
 
 import { SignerOptions } from '@polkadot/api/types';
+import { InjectedSigner } from '@polkadot/extension-dapp/types';
 import { IExtrinsic } from '@polkadot/types/types';
-import { Signer as ISigner, SendRequest } from './types';
+import { SendRequest } from './types';
 
 import { Hash } from '@polkadot/types';
 import { SubmittableResult } from '@polkadot/api/SubmittableExtrinsic';
 
 let sendRequest: SendRequest;
 
-export default class Signer implements ISigner {
+export default class Signer implements InjectedSigner {
   constructor (_sendRequest: SendRequest) {
     sendRequest = _sendRequest;
   }

packages/extension/src/inject/index.ts

@@ -2,8 +2,8 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
+import { InjectedWindow } from '@polkadot/extension-dapp/types';
 import { MessageTypes } from '../background/types';
-import { WindowInjected } from './types';
 
 import events, { eventTarget } from '../events';
 import Injected from './Injected';
@@ -59,15 +59,15 @@ eventTarget.addEventListener(events.response, (event) => {
 });
 
 // small helper with the typescript types, just cast window
-const windowInject = window as WindowInjected;
+const windowInject = window as InjectedWindow;
 
 // don't clobber the existing object, we will add it it (or create as needed)
 windowInject.injectedWeb3 = windowInject.injectedWeb3 || {};
 
 // add our enable function
 windowInject.injectedWeb3['polkadot-js'] = {
-  name: 'polkadot-js', // process.env.PKG_NAME as string,
-  version: process.env.PKG_VERSION as string,
   enable: (origin: string): Promise<Injected> =>
-    sendMessage('authorize.tab', { origin }).then(() => new Injected(sendMessage))
+    sendMessage('authorize.tab', { origin }).then(() => new Injected(sendMessage)),
-};
+  name: 'polkadot-js', // process.env.PKG_NAME as string,
+  version: process.env.PKG_VERSION as string
+} as any; // FIXME For now, the name attribute is required by old

packages/extension/src/inject/types.ts

@@ -2,37 +2,8 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import { Signer as SignerInterface } from '@polkadot/api/types';
 import { MessageTypes } from '../background/types';
 
-export interface Account {
-  readonly address: string; // ss-58 encoded address
-  readonly name?: string; // optional name for display
-}
-
-export interface Accounts {
-  get: () => Promise<Array<Account>>;
-}
-
-export interface Signer extends SignerInterface {
-  // no specific signer extensions
-}
-
-export interface Injected {
-  readonly accounts: Accounts;
-  readonly signer: Signer;
-}
-
 export interface SendRequest {
   (message: MessageTypes, request?: any): Promise<any>;
 }
-
-export type WindowInjected = Window & {
-  injectedWeb3: {
-    [index: string]: {
-      name: string,
-      version: string,
-      enable (origin: string): Promise<Injected>
-    }
-  }
-};

tsconfig.json

@@ -7,6 +7,8 @@
     {
       "@polkadot/extension": ["packages/extension/src"],
       "@polkadot/extension/*": ["packages/extension/src/*"],
+      "@polkadot/extension-dapp": ["packages/extension-dapp/src"],
+      "@polkadot/extension-dapp/*": ["packages/extension-dapp/src/*"],
       "@polkadot/extension-ui": ["packages/extension-ui/src"],
       "@polkadot/extension-ui/*": ["packages/extension-ui/src/*"]
     },