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refactor: improve performance of Transfer #5997 (#6001)

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* fix bug #5997

* change order for review
This commit is contained in:
wangtao0101 2017-05-08 03:40:12 -05:00 committed by Benjy Cui
parent 694f73d060
commit 0d070d3763
2 changed files with 38 additions and 23 deletions
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47
components/transfer/index.tsx
View File

@ -91,24 +91,34 @@ abstract class Transfer extends React.Component<TransferProps, any> {
componentWillReceiveProps(nextProps: TransferProps) {
const { sourceSelectedKeys, targetSelectedKeys } = this.state;
if (nextProps.targetKeys !== this.props.targetKeys ||
nextProps.dataSource !== this.props.dataSource) {
// clear cached splited dataSource
this.splitedDataSource = null;
const { dataSource, targetKeys = [] } = nextProps;
function existInDateSourcekey(key) {
return dataSource.some(item => item.key === key);
}
if (!nextProps.selectedKeys) {
// clear key nolonger existed
// clear checkedKeys according to targetKeys
const { dataSource, targetKeys = [] } = nextProps;
const newSourceSelectedKeys: String[] = [];
const newTargetSelectedKeys: String[] = [];
dataSource.forEach(record => {
if (sourceSelectedKeys.includes(record.key) && !targetKeys.includes(record.key)) {
newSourceSelectedKeys.push(record.key);
}
if (targetSelectedKeys.includes(record.key) && targetKeys.includes(record.key)) {
newTargetSelectedKeys.push(record.key);
}
});
this.setState({
sourceSelectedKeys: sourceSelectedKeys.filter(existInDateSourcekey)
.filter(data => targetKeys.filter(key => key === data).length === 0),
targetSelectedKeys: targetSelectedKeys.filter(existInDateSourcekey)
.filter(data => targetKeys.filter(key => key === data).length > 0),
sourceSelectedKeys: newSourceSelectedKeys,
targetSelectedKeys: newTargetSelectedKeys,
});
}
}
if (nextProps.selectedKeys) {
const targetKeys = nextProps.targetKeys;
this.setState({
@ -117,24 +127,25 @@ abstract class Transfer extends React.Component<TransferProps, any> {
});
}
}
splitDataSource(props: TransferProps) {
if (this.splitedDataSource) {
return this.splitedDataSource;
}
const { rowKey, dataSource, targetKeys = [] } = props;
if (rowKey) {
dataSource.forEach(record => {
record.key = rowKey(record);
});
}
const leftDataSource = dataSource.filter(({ key }) => targetKeys.indexOf(key) === -1);
const leftDataSource: TransferItem[] = [];
const rightDataSource: TransferItem[] = [];
targetKeys.forEach((targetKey) => {
const targetItem = dataSource.filter(record => record.key === targetKey)[0];
if (targetItem) {
rightDataSource.push(targetItem);
dataSource.forEach(record => {
if (rowKey) {
record.key = rowKey(record);
}
if (targetKeys.includes(record.key)) {
rightDataSource.push(record);
} else {
leftDataSource.push(record);
}
});

6
tsconfig.json
View File

@ -5,7 +5,11 @@
"allowSyntheticDefaultImports": true,
"experimentalDecorators": true,
"jsx": "preserve",
"target": "es6"
"target": "es6",
"lib": [
"dom",
"es7"
]
},
"exclude": [
"node_modules"