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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 { CancellationToken } from 'vs/base/common/cancellation';
import { VSDataTransfer } from 'vs/base/common/dataTransfer';
import { Disposable } from 'vs/base/common/lifecycle';
import { Mimes } from 'vs/base/common/mime';
import { relativePath } from 'vs/base/common/resources';
import { URI } from 'vs/base/common/uri';
import { addExternalEditorsDropData, toVSDataTransfer, UriList } from 'vs/editor/browser/dnd';
import { ICodeEditor } from 'vs/editor/browser/editorBrowser';
import { registerEditorContribution } from 'vs/editor/browser/editorExtensions';
import { IBulkEditService, ResourceEdit } from 'vs/editor/browser/services/bulkEditService';
import { IPosition } from 'vs/editor/common/core/position';
import { Range } from 'vs/editor/common/core/range';
import { Selection, SelectionDirection } from 'vs/editor/common/core/selection';
import { IEditorContribution } from 'vs/editor/common/editorCommon';
import { DocumentOnDropEdit, DocumentOnDropEditProvider } from 'vs/editor/common/languages';
import { ITextModel } from 'vs/editor/common/model';
import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
import { CodeEditorStateFlag, EditorStateCancellationTokenSource } from 'vs/editor/contrib/editorState/browser/editorState';
import { performSnippetEdit } from 'vs/editor/contrib/snippet/browser/snippetController2';
import { SnippetParser } from 'vs/editor/contrib/snippet/browser/snippetParser';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace';
export class DropIntoEditorController extends Disposable implements IEditorContribution {
public static readonly ID = 'editor.contrib.dropIntoEditorController';
constructor(
editor: ICodeEditor,
@IWorkspaceContextService workspaceContextService: IWorkspaceContextService,
@ILanguageFeaturesService private readonly _languageFeaturesService: ILanguageFeaturesService,
@IConfigurationService private readonly _configurationService: IConfigurationService,
@IBulkEditService private readonly _bulkEditService: IBulkEditService,
) {
super();
this._register(editor.onDropIntoEditor(e => this.onDropIntoEditor(editor, e.position, e.event)));
this._languageFeaturesService.documentOnDropEditProvider.register('*', new DefaultOnDropProvider(workspaceContextService));
this._register(this._configurationService.onDidChangeConfiguration(e => {
if (e.affectsConfiguration('workbench.experimental.editor.dropIntoEditor.enabled')) {
this.updateEditorOptions(editor);
}
}));
this.updateEditorOptions(editor);
}
private updateEditorOptions(editor: ICodeEditor) {
editor.updateOptions({
enableDropIntoEditor: this._configurationService.getValue('workbench.experimental.editor.dropIntoEditor.enabled')
});
}
private async onDropIntoEditor(editor: ICodeEditor, position: IPosition, dragEvent: DragEvent) {
if (!dragEvent.dataTransfer || !editor.hasModel()) {
return;
}
const model = editor.getModel();
const modelVersionNow = model.getVersionId();
const ourDataTransfer = await this.extractDataTransferData(dragEvent);
if (ourDataTransfer.size === 0) {
return;
}
if (editor.getModel().getVersionId() !== modelVersionNow) {
return;
}
const tokenSource = new EditorStateCancellationTokenSource(editor, CodeEditorStateFlag.Value);
try {
const providers = this._languageFeaturesService.documentOnDropEditProvider.ordered(model);
for (const provider of providers) {
const edit = await provider.provideDocumentOnDropEdits(model, position, ourDataTransfer, tokenSource.token);
if (tokenSource.token.isCancellationRequested || editor.getModel().getVersionId() !== modelVersionNow) {
return;
}
if (edit) {
const range = new Range(position.lineNumber, position.column, position.lineNumber, position.column);
performSnippetEdit(editor, typeof edit.insertText === 'string' ? SnippetParser.escape(edit.insertText) : edit.insertText.snippet, [Selection.fromRange(range, SelectionDirection.LTR)]);
if (edit.additionalEdit) {
await this._bulkEditService.apply(ResourceEdit.convert(edit.additionalEdit), { editor });
}
return;
}
}
} finally {
tokenSource.dispose();
}
}
public async extractDataTransferData(dragEvent: DragEvent): Promise<VSDataTransfer> {
if (!dragEvent.dataTransfer) {
return new VSDataTransfer();
}
const textEditorDataTransfer = toVSDataTransfer(dragEvent.dataTransfer);
addExternalEditorsDropData(textEditorDataTransfer, dragEvent);
return textEditorDataTransfer;
}
}
class DefaultOnDropProvider implements DocumentOnDropEditProvider {
constructor(
@IWorkspaceContextService private readonly _workspaceContextService: IWorkspaceContextService,
) { }
async provideDocumentOnDropEdits(_model: ITextModel, _position: IPosition, dataTransfer: VSDataTransfer, _token: CancellationToken): Promise<DocumentOnDropEdit | undefined> {
const urlListEntry = dataTransfer.get(Mimes.uriList);
if (urlListEntry) {
const urlList = await urlListEntry.asString();
const snippet = this.getUriListInsertText(urlList);
if (snippet) {
return { insertText: snippet };
}
}
const textEntry = dataTransfer.get('text') ?? dataTransfer.get(Mimes.text);
if (textEntry) {
const text = await textEntry.asString();
return { insertText: text };
}
return undefined;
}
private getUriListInsertText(strUriList: string): string | undefined {
const uris: URI[] = [];
for (const resource of UriList.parse(strUriList)) {
try {
uris.push(URI.parse(resource));
} catch {
// noop
}
}
if (!uris.length) {
return;
}
return uris
.map(uri => {
const root = this._workspaceContextService.getWorkspaceFolder(uri);
if (root) {
const rel = relativePath(root.uri, uri);
if (rel) {
return rel;
}
}
return uri.fsPath;
})
.join(' ');
}
}
registerEditorContribution(DropIntoEditorController.ID, DropIntoEditorController);
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