bc518174
 王天杨
提交两个项目文件
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import { NativeDragSource } from './NativeDragSource.js'
import { nativeTypesConfig } from './nativeTypesConfig.js'
export function createNativeDragSource(
type: string,
dataTransfer?: DataTransfer,
): NativeDragSource {
const config = nativeTypesConfig[type]
if (!config) {
throw new Error(`native type ${type} has no configuration`)
}
const result = new NativeDragSource(config)
result.loadDataTransfer(dataTransfer)
return result
}
export function matchNativeItemType(
dataTransfer: DataTransfer | null,
): string | null {
if (!dataTransfer) {
return null
}
const dataTransferTypes = Array.prototype.slice.call(dataTransfer.types || [])
return (
Object.keys(nativeTypesConfig).filter((nativeItemType) => {
const typeConfig = nativeTypesConfig[nativeItemType]
if (!typeConfig?.matchesTypes) {
return false
}
return typeConfig.matchesTypes.some(
(t) => dataTransferTypes.indexOf(t) > -1,
)
})[0] || null
)
}
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