dashboard: integrate Flow, sketch message API (#15713)

* dashboard: minor design change

* dashboard: Flow integration, message API

* dashboard: minor polishes, exclude misspell linter

dashboard/assets/components/Main.jsx

@@ -1,3 +1,5 @@
+// @flow
+
 // Copyright 2017 The go-ethereum Authors
 // This file is part of the go-ethereum library.
 //
@@ -15,95 +17,52 @@
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
 import React, {Component} from 'react';
-import PropTypes from 'prop-types';
-import classNames from 'classnames';
-import {withStyles} from 'material-ui/styles';
 
-import {TAGS, DRAWER_WIDTH} from "./Common.jsx";
-import Home from './Home.jsx';
+import withStyles from 'material-ui/styles/withStyles';
 
-// ContentSwitch chooses and renders the proper page content.
-class ContentSwitch extends Component {
-    render() {
-        switch(this.props.active) {
-            case TAGS.home.id:
-                return <Home memory={this.props.memory} traffic={this.props.traffic} shouldUpdate={this.props.shouldUpdate} />;
-            case TAGS.chain.id:
-                return null;
-            case TAGS.transactions.id:
-                return null;
-            case TAGS.network.id:
-                // Only for testing.
-                return null;
-            case TAGS.system.id:
-                return null;
-            case TAGS.logs.id:
-                return <div>{this.props.logs.map((log, index) => <div key={index}>{log}</div>)}</div>;
-        }
-        return null;
-    }
-}
+import Home from './Home';
+import {MENU} from './Common';
+import type {Content} from '../types/content';
 
-ContentSwitch.propTypes = {
-    active:       PropTypes.string.isRequired,
-    shouldUpdate: PropTypes.object.isRequired,
-};
-
-// styles contains the styles for the Main component.
+// Styles for the Content component.
 const styles = theme => ({
-    content: {
-        width:           '100%',
-        marginLeft:      -DRAWER_WIDTH,
-        flexGrow:        1,
-        backgroundColor: theme.palette.background.default,
-        padding:         theme.spacing.unit * 3,
-        transition:      theme.transitions.create('margin', {
-            easing:   theme.transitions.easing.sharp,
-            duration: theme.transitions.duration.leavingScreen,
-        }),
-        marginTop:                    56,
-        overflow:                     'auto',
-        [theme.breakpoints.up('sm')]: {
-            content: {
-                height:    'calc(100% - 64px)',
-                marginTop: 64,
-            },
-        },
-    },
-    contentShift: {
-        marginLeft: 0,
-        transition: theme.transitions.create('margin', {
-            easing:   theme.transitions.easing.easeOut,
-            duration: theme.transitions.duration.enteringScreen,
-        }),
-    },
+	content: {
+		flexGrow:        1,
+		backgroundColor: theme.palette.background.default,
+		padding:         theme.spacing.unit * 3,
+		overflow:        'auto',
+	},
 });
-
-// Main renders a component for the page content.
-class Main extends Component {
-    render() {
-        // The classes property is injected by withStyles().
-        const {classes} = this.props;
-
-        return (
-            <main className={classNames(classes.content, this.props.opened && classes.contentShift)}>
-                <ContentSwitch
-                    active={this.props.active}
-                    memory={this.props.memory}
-                    traffic={this.props.traffic}
-                    logs={this.props.logs}
-                    shouldUpdate={this.props.shouldUpdate}
-                />
-            </main>
-        );
-    }
-}
-
-Main.propTypes = {
-    classes:      PropTypes.object.isRequired,
-    opened:       PropTypes.bool.isRequired,
-    active:       PropTypes.string.isRequired,
-    shouldUpdate: PropTypes.object.isRequired,
+export type Props = {
+	classes: Object,
+	active: string,
+	content: Content,
+	shouldUpdate: Object,
 };
+// Main renders the chosen content.
+class Main extends Component<Props> {
+	render() {
+		const {
+			classes, active, content, shouldUpdate,
+		} = this.props;
+
+		let children = null;
+		switch (active) {
+		case MENU.get('home').id:
+			children = <Home memory={content.home.memory} traffic={content.home.traffic} shouldUpdate={shouldUpdate} />;
+			break;
+		case MENU.get('chain').id:
+		case MENU.get('txpool').id:
+		case MENU.get('network').id:
+		case MENU.get('system').id:
+			children = <div>Work in progress.</div>;
+			break;
+		case MENU.get('logs').id:
+			children = <div>{content.logs.log.map((log, index) => <div key={index}>{log}</div>)}</div>;
+		}
+
+		return <div className={classes.content}>{children}</div>;
+	}
+}
 
 export default withStyles(styles)(Main);