import { Tabs, Button, Icon, message } from 'antd';
const TabPane = Tabs.TabPane;
let index = 0;
const closeStyle = {
position: 'absolute',
top: 8,
right: -9,
};
const addStyle = {
pointerEvents: 'auto',
color: '#2db7f5',
position: 'absolute',
top: 8,
left: 0,
marginLeft: -8,
};
const Test = React.createClass({
getInitialState() {
return {
tabs: [{
title: 'title ' + index,
content: 'content ' + index,
index: index
}],
activeKey: index.toString()
};
},
remove(targetIndex, e) {
e.stopPropagation();
let tabs = this.state.tabs;
let activeKey = this.state.activeKey;
let foundIndex = 0;
if(tabs.length === 1) {
message.error('仅剩一个,不能删除');
return;
}
const newTabs = tabs.filter(tab => {
if (tab.index !== targetIndex) {
return true;
} else {
foundIndex = targetIndex;
return false;
}
});
if (activeKey === targetIndex) {
activeKey = tabs[foundIndex - 1].index;
}
this.setState({
tabs: newTabs, activeKey
});
},
add() {
index += 1;
this.setState({
tabs: this.state.tabs.concat({
title: 'title ' + index,
content: 'content ' + index,
index: index,
}),
activeKey: index.toString(),
});
},
onChange(activeKey) {
console.log(activeKey);
this.setState({ activeKey });
},
render() {
const addBtn = <Icon style={addStyle} type="plus-circle" onClick={this.add} />;
const operations = <Button style={{ marginTop: 2 }}>操作</Button>;
return (
<Tabs onChange={this.onChange}
activeKey={this.state.activeKey}
tabBarExtraContent={operations}>
{
this.state.tabs.map(tab => (
<TabPane key={tab.index} tab={
<div>
{tab.title}
<Icon type="cross" style={closeStyle} onClick={this.remove.bind(this, tab.index)} />
</div>
}>{tab.content}</TabPane>
))
}
<TabPane key="__add" disabled tab={addBtn} />
</Tabs>
);
}
});
ReactDOM.render(<Test />, document.getElementById('components-tabs-demo-add'));