Extension installation overlay (#4423)

* Extension installation overlay

* Pr gumbles

* Spelling

* Update Chrome URL

js/package.json

@@ -188,6 +188,7 @@
     "scryptsy": "2.0.0",
     "solc": "ngotchac/solc-js",
     "store": "1.3.20",
+    "useragent.js": "0.5.6",
     "utf8": "2.1.2",
     "valid-url": "1.0.9",
     "validator": "6.2.0",

js/src/views/Application/Extension/extension.css

@@ -0,0 +1,52 @@
+/* Copyright 2015-2017 Parity Technologies (UK) Ltd.
+/* This file is part of Parity.
+/*
+/* Parity is free software: you can redistribute it and/or modify
+/* it under the terms of the GNU General Public License as published by
+/* the Free Software Foundation, either version 3 of the License, or
+/* (at your option) any later version.
+/*
+/* Parity is distributed in the hope that it will be useful,
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+/* GNU General Public License for more details.
+/*
+/* You should have received a copy of the GNU General Public License
+/* along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+.body {
+  background: #f80;
+  color: white;
+  opacity: 1;
+  max-width: 500px;
+  padding: 1em 4em 1em 2em;
+  position: fixed;
+  right: 1.5em;
+  top: 1.5em;
+  z-index: 1000;
+
+  .button {
+    background: rgba(0, 0, 0, 0.5);
+    color: white !important;
+
+    svg {
+      fill: white !important;
+    }
+  }
+
+  .buttonrow {
+    text-align: right;
+  }
+
+  p {
+    color: white;
+  }
+
+  .close {
+    cursor: pointer;
+    position: absolute;
+    right: 1em;
+    top: 1em;
+  }
+}

js/src/views/Application/Extension/extension.js

@@ -0,0 +1,74 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import { observer } from 'mobx-react';
+import React, { Component } from 'react';
+import { FormattedMessage } from 'react-intl';
+
+import { Button } from '~/ui';
+import { CloseIcon, CheckIcon } from '~/ui/Icons';
+
+import Store from './store';
+import styles from './extension.css';
+
+@observer
+export default class Extension extends Component {
+  store = new Store();
+
+  render () {
+    const { showWarning } = this.store;
+
+    if (!showWarning) {
+      return null;
+    }
+
+    return (
+      <div className={ styles.body }>
+        <CloseIcon
+          className={ styles.close }
+          onClick={ this.onClose }
+        />
+        <p>
+          <FormattedMessage
+            id='extension.intro'
+            defaultMessage='Parity now has an extension available for Chrome that allows safe browsing of Ethereum-enabled distributed applications. It is highly recommended that you install this extension to further enhance your Parity experience.'
+          />
+        </p>
+        <p className={ styles.buttonrow }>
+          <Button
+            className={ styles.button }
+            icon={ <CheckIcon /> }
+            label={
+              <FormattedMessage
+                id='extension.install'
+                defaultMessage='Install the extension now'
+              />
+            }
+            onClick={ this.onInstallClick }
+          />
+        </p>
+      </div>
+    );
+  }
+
+  onClose = () => {
+    this.store.snoozeWarning();
+  }
+
+  onInstallClick = () => {
+    this.store.installExtension();
+  }
+}

js/src/views/Application/Extension/index.js

@@ -0,0 +1,17 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+export default from './extension';

js/src/views/Application/Extension/store.js

@@ -0,0 +1,89 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+/* global chrome */
+
+import { action, computed, observable } from 'mobx';
+
+import store from 'store';
+import browser from 'useragent.js/lib/browser';
+
+const A_DAY = 24 * 60 * 60 * 1000;
+const NEXT_DISPLAY = '_parity::extensionWarning::nextDisplay';
+
+// 'https://chrome.google.com/webstore/detail/parity-ethereum-integrati/himekenlppkgeaoeddcliojfddemadig';
+const EXTENSION_PAGE = 'https://chrome.google.com/webstore/detail/himekenlppkgeaoeddcliojfddemadig';
+
+export default class Store {
+  @observable isInstalling = false;
+  @observable nextDisplay = 0;
+  @observable shouldInstall = false;
+
+  constructor () {
+    this.nextDisplay = store.get(NEXT_DISPLAY) || 0;
+    this.testInstall();
+  }
+
+  @computed get showWarning () {
+    return !this.isInstalling && this.shouldInstall && (Date.now() > this.nextDisplay);
+  }
+
+  @action setInstalling = (isInstalling) => {
+    this.isInstalling = isInstalling;
+  }
+
+  @action snoozeWarning = (sleep = A_DAY) => {
+    this.nextDisplay = Date.now() + sleep;
+    store.set(NEXT_DISPLAY, this.nextDisplay);
+  }
+
+  @action testInstall = () => {
+    this.shouldInstall = this.readStatus();
+  }
+
+  readStatus = () => {
+    const hasExtension = Symbol.for('parity.extension') in window;
+    const ua = browser.analyze(navigator.userAgent || '');
+
+    if (hasExtension) {
+      return false;
+    }
+
+    return (ua || {}).name.toLowerCase() === 'chrome';
+  }
+
+  installExtension = () => {
+    this.setInstalling(true);
+
+    return new Promise((resolve, reject) => {
+      const link = document.createElement('link');
+
+      link.setAttribute('rel', 'chrome-webstore-item');
+      link.setAttribute('href', EXTENSION_PAGE);
+      document.querySelector('head').appendChild(link);
+
+      if (chrome && chrome.webstore && chrome.webstore.install) {
+        chrome.webstore.install(EXTENSION_PAGE, resolve, reject);
+      } else {
+        reject(new Error('Direct installation failed.'));
+      }
+    })
+    .catch((error) => {
+      console.warn('Unable to perform direct install', error);
+      window.open(EXTENSION_PAGE, '_blank');
+    });
+  }
+}

js/src/views/Application/application.js

@@ -26,6 +26,7 @@ import ParityBar from '../ParityBar';
 import Snackbar from './Snackbar';
 import Container from './Container';
 import DappContainer from './DappContainer';
+import Extension from './Extension';
 import FrameError from './FrameError';
 import Status from './Status';
 import Store from './store';
@@ -104,6 +105,7 @@ class Application extends Component {
             ? <Status upgradeStore={ this.upgradeStore } />
             : null
         }
+        <Extension />
         <Snackbar />
       </Container>
     );