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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as path from 'path';
import * as vscode from 'vscode';
import * as URI from 'vscode-uri';
const imageFileExtensions = new Set<string>([
'.bmp',
'.gif',
'.ico',
'.jpe',
'.jpeg',
'.jpg',
'.png',
'.psd',
'.svg',
'.tga',
'.tif',
'.tiff',
'.webp',
]);
export function registerDropIntoEditor(selector: vscode.DocumentSelector) {
return vscode.languages.registerDocumentOnDropEditProvider(selector, new class implements vscode.DocumentOnDropEditProvider {
async provideDocumentOnDropEdits(document: vscode.TextDocument, _position: vscode.Position, dataTransfer: vscode.DataTransfer, token: vscode.CancellationToken): Promise<vscode.DocumentDropEdit | undefined> {
const enabled = vscode.workspace.getConfiguration('markdown', document).get('editor.drop.enabled', true);
if (!enabled) {
return undefined;
}
const snippet = await tryGetUriListSnippet(document, dataTransfer, token);
if (snippet) {
return { insertText: snippet };
}
return undefined;
}
});
}
export async function tryGetUriListSnippet(document: vscode.TextDocument, dataTransfer: vscode.DataTransfer, token: vscode.CancellationToken): Promise<vscode.SnippetString | undefined> {
const urlList = await dataTransfer.get('text/uri-list')?.asString();
if (!urlList || token.isCancellationRequested) {
return undefined;
}
const uris: vscode.Uri[] = [];
for (const resource of urlList.split('\n')) {
try {
uris.push(vscode.Uri.parse(resource));
} catch {
// noop
}
}
if (!uris.length) {
return;
}
const snippet = new vscode.SnippetString();
uris.forEach((uri, i) => {
const mdPath = document.uri.scheme === uri.scheme
? encodeURI(path.relative(URI.Utils.dirname(document.uri).fsPath, uri.fsPath).replace(/\\/g, '/'))
: uri.toString(false);
const ext = URI.Utils.extname(uri).toLowerCase();
snippet.appendText(imageFileExtensions.has(ext) ? '`);
if (i <= uris.length - 1 && uris.length > 1) {
snippet.appendText(' ');
}
});
return snippet;
}
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