1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// @flow
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
import React, {Component} from 'react';
import withStyles from 'material-ui/styles/withStyles';
import AppBar from 'material-ui/AppBar';
import Toolbar from 'material-ui/Toolbar';
import Transition from 'react-transition-group/Transition';
import IconButton from 'material-ui/IconButton';
import Typography from 'material-ui/Typography';
import ChevronLeftIcon from 'material-ui-icons/ChevronLeft';
import {DURATION} from './Common';
// arrowDefault is the default style of the arrow button.
const arrowDefault = {
transition: `transform ${DURATION}ms`,
};
// arrowTransition is the additional style of the arrow button corresponding to the transition's state.
const arrowTransition = {
entered: {transform: 'rotate(180deg)'},
};
// Styles for the Header component.
const styles = theme => ({
header: {
backgroundColor: theme.palette.background.appBar,
color: theme.palette.getContrastText(theme.palette.background.appBar),
zIndex: theme.zIndex.appBar,
},
toolbar: {
paddingLeft: theme.spacing.unit,
paddingRight: theme.spacing.unit,
},
mainText: {
paddingLeft: theme.spacing.unit,
},
});
export type Props = {
classes: Object,
opened: boolean,
openSideBar: () => {},
closeSideBar: () => {},
};
// Header renders the header of the dashboard.
class Header extends Component<Props> {
shouldComponentUpdate(nextProps) {
return nextProps.opened !== this.props.opened;
}
// changeSideBar opens or closes the sidebar corresponding to the previous state.
changeSideBar = () => {
if (this.props.opened) {
this.props.closeSideBar();
} else {
this.props.openSideBar();
}
};
// arrowButton is connected to the sidebar; changes its state.
arrowButton = (transitionState: string) => (
<IconButton onClick={this.changeSideBar}>
<ChevronLeftIcon
style={{
...arrowDefault,
...arrowTransition[transitionState],
}}
/>
</IconButton>
);
render() {
const {classes, opened} = this.props; // The classes property is injected by withStyles().
return (
<AppBar position="static" className={classes.header}>
<Toolbar className={classes.toolbar}>
<Transition mountOnEnter in={opened} timeout={{enter: DURATION}}>
{this.arrowButton}
</Transition>
<Typography type="title" color="inherit" noWrap className={classes.mainText}>
Go Ethereum Dashboard
</Typography>
</Toolbar>
</AppBar>
);
}
}
export default withStyles(styles)(Header);
|
