monaco-editor-core
Version:
A browser based code editor
77 lines (76 loc) • 3.32 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { DataTransfers } from '../../base/browser/dnd.js';
import { createFileDataTransferItem, createStringDataTransferItem, UriList, VSDataTransfer } from '../../base/common/dataTransfer.js';
import { Mimes } from '../../base/common/mime.js';
import { URI } from '../../base/common/uri.js';
import { CodeDataTransfers } from '../../platform/dnd/browser/dnd.js';
export function toVSDataTransfer(dataTransfer) {
const vsDataTransfer = new VSDataTransfer();
for (const item of dataTransfer.items) {
const type = item.type;
if (item.kind === 'string') {
const asStringValue = new Promise(resolve => item.getAsString(resolve));
vsDataTransfer.append(type, createStringDataTransferItem(asStringValue));
}
else if (item.kind === 'file') {
const file = item.getAsFile();
if (file) {
vsDataTransfer.append(type, createFileDataTransferItemFromFile(file));
}
}
}
return vsDataTransfer;
}
function createFileDataTransferItemFromFile(file) {
const uri = file.path ? URI.parse(file.path) : undefined;
return createFileDataTransferItem(file.name, uri, async () => {
return new Uint8Array(await file.arrayBuffer());
});
}
const INTERNAL_DND_MIME_TYPES = Object.freeze([
CodeDataTransfers.EDITORS,
CodeDataTransfers.FILES,
DataTransfers.RESOURCES,
DataTransfers.INTERNAL_URI_LIST,
]);
export function toExternalVSDataTransfer(sourceDataTransfer, overwriteUriList = false) {
const vsDataTransfer = toVSDataTransfer(sourceDataTransfer);
// Try to expose the internal uri-list type as the standard type
const uriList = vsDataTransfer.get(DataTransfers.INTERNAL_URI_LIST);
if (uriList) {
vsDataTransfer.replace(Mimes.uriList, uriList);
}
else {
if (overwriteUriList || !vsDataTransfer.has(Mimes.uriList)) {
// Otherwise, fallback to adding dragged resources to the uri list
const editorData = [];
for (const item of sourceDataTransfer.items) {
const file = item.getAsFile();
if (file) {
const path = file.path;
try {
if (path) {
editorData.push(URI.file(path).toString());
}
else {
editorData.push(URI.parse(file.name, true).toString());
}
}
catch {
// Parsing failed. Leave out from list
}
}
}
if (editorData.length) {
vsDataTransfer.replace(Mimes.uriList, createStringDataTransferItem(UriList.create(editorData)));
}
}
}
for (const internal of INTERNAL_DND_MIME_TYPES) {
vsDataTransfer.delete(internal);
}
return vsDataTransfer;
}