/
virtualFiles.ts
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/
virtualFiles.ts
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import * as vscode from 'vscode';
import type { BaseLanguageClient } from 'vscode-languageclient';
import { WriteVirtualFilesNotification, GetVirtualFileNamesRequest, GetVirtualFileRequest } from '@volar/vue-language-server';
import { SourceMapBase } from '@volar/source-map';
const scheme = 'volar-virtual-file';
const mappingDecorationType = vscode.window.createTextEditorDecorationType({
borderWidth: '1px',
borderStyle: 'solid',
overviewRulerColor: 'blue',
overviewRulerLane: vscode.OverviewRulerLane.Right,
light: {
// this color will be used in light color themes
borderColor: 'darkblue'
},
dark: {
// this color will be used in dark color themes
borderColor: 'lightblue'
}
});
const mappingSelectionDecorationType = vscode.window.createTextEditorDecorationType({
cursor: 'crosshair',
light: {
backgroundColor: 'lightblue'
},
dark: {
backgroundColor: 'darkblue'
}
});
export async function register(context: vscode.ExtensionContext, client: BaseLanguageClient) {
const sourceUriToVirtualUris = new Map<string, string[]>();
const virtualUriToSourceEditor = new Map<string, vscode.TextEditor>();
const virtualUriToSourceMap = new Map<string, [number, SourceMapBase]>();
const docChangeEvent = new vscode.EventEmitter<vscode.Uri>();
let updateDecorationsTimeout: NodeJS.Timeout | undefined;
context.subscriptions.push(vscode.window.onDidChangeActiveTextEditor(update));
context.subscriptions.push(vscode.window.onDidChangeTextEditorSelection(update));
context.subscriptions.push(vscode.window.onDidChangeVisibleTextEditors(update));
context.subscriptions.push(vscode.workspace.onDidChangeTextDocument(e => {
const uris = sourceUriToVirtualUris.get(e.document.uri.toString());
if (uris) {
for (const uri of uris) {
docChangeEvent.fire(vscode.Uri.parse(uri));
}
}
}));
context.subscriptions.push(vscode.workspace.registerTextDocumentContentProvider(
scheme,
{
onDidChange: docChangeEvent.event,
async provideTextDocumentContent(uri: vscode.Uri): Promise<string | undefined> {
const fileName = uri.with({ scheme: 'file' }).fsPath;
const sourceEditor = virtualUriToSourceEditor.get(uri.toString());
if (sourceEditor) {
const virtual = await client.sendRequest(GetVirtualFileRequest.type, { sourceFileUri: sourceEditor.document.uri.toString(), virtualFileName: fileName });
virtualUriToSourceMap.set(uri.toString(), [sourceEditor.document.version, new SourceMapBase(virtual.mappings)]);
clearTimeout(updateDecorationsTimeout);
updateDecorationsTimeout = setTimeout(update, 100);
return virtual.content;
}
}
},
));
context.subscriptions.push(vscode.commands.registerCommand('volar.action.showVirtualFiles', async () => {
const sourceEditor = vscode.window.activeTextEditor;
if (sourceEditor) {
const fileNames = await client.sendRequest(GetVirtualFileNamesRequest.type, client.code2ProtocolConverter.asTextDocumentIdentifier(sourceEditor.document));
const uris = fileNames.map(fileName => vscode.Uri.file(fileName).with({ scheme }));
sourceUriToVirtualUris.set(sourceEditor.document.uri.toString(), uris.map(uri => uri.toString()));
for (const uri of uris) {
virtualUriToSourceEditor.set(uri.toString(), sourceEditor);
vscode.window.showTextDocument(uri, { viewColumn: vscode.ViewColumn.Two, preview: false });
}
}
}));
context.subscriptions.push(vscode.commands.registerCommand('volar.action.writeVirtualFiles', () => {
if (vscode.window.activeTextEditor) {
client.sendNotification(WriteVirtualFilesNotification.type, client.code2ProtocolConverter.asTextDocumentIdentifier(vscode.window.activeTextEditor.document));
}
}));
function update() {
if (vscode.window.activeTextEditor) {
const sourceEditor = virtualUriToSourceEditor.get(vscode.window.activeTextEditor.document.uri.toString()) ?? vscode.window.activeTextEditor;
const virtualUris = sourceUriToVirtualUris.get(sourceEditor.document.uri.toString());
const virtualEditors = vscode.window.visibleTextEditors.filter(editor => virtualUris?.includes(editor.document.uri.toString()));;
let mappingDecorationRanges: vscode.Range[] = [];
let mappingSelectionDecorationRanges: vscode.Range[] = [];
let shouldUpdate = virtualEditors.length === 0;
for (const virtualEditor of virtualEditors) {
const [version, map] = virtualUriToSourceMap.get(virtualEditor.document.uri.toString()) ?? [undefined, undefined];
if (map && version === sourceEditor.document.version) {
shouldUpdate = true;
mappingDecorationRanges = mappingDecorationRanges.concat(map.mappings.map(mapping => new vscode.Range(
sourceEditor.document.positionAt(mapping.sourceRange[0]),
sourceEditor.document.positionAt(mapping.sourceRange[1]),
)));
virtualEditor.setDecorations(mappingDecorationType, map.mappings.map(mapping => new vscode.Range(
virtualEditor.document.positionAt(mapping.generatedRange[0]),
virtualEditor.document.positionAt(mapping.generatedRange[1]),
)));
/**
* selection
*/
const selection = vscode.window.activeTextEditor.selection;
const startOffset = vscode.window.activeTextEditor.document.offsetAt(selection.start);
const mappeds = vscode.window.activeTextEditor === sourceEditor
? [...map.toGeneratedOffsets(startOffset)]
: [...map.toSourceOffsets(startOffset)];
for (const mapped of mappeds) {
mappingSelectionDecorationRanges.push(new vscode.Range(
sourceEditor.document.positionAt(mapped[1].sourceRange[0]),
sourceEditor.document.positionAt(mapped[1].sourceRange[1]),
));
}
virtualEditor.setDecorations(mappingSelectionDecorationType, mappeds.map(mapped => new vscode.Range(
virtualEditor.document.positionAt(mapped[1].generatedRange[0]),
virtualEditor.document.positionAt(mapped[1].generatedRange[1]),
)));
if (mappeds.length) {
if (vscode.window.activeTextEditor === sourceEditor) {
const mapped = mappeds.sort((a, b) => a[1].generatedRange[0] - b[1].generatedRange[0])[0];
virtualEditor.revealRange(new vscode.Range(
virtualEditor.document.positionAt(mapped[1].generatedRange[0]),
virtualEditor.document.positionAt(mapped[1].generatedRange[1]),
));
}
else {
const mapped = mappeds.sort((a, b) => a[1].sourceRange[0] - b[1].sourceRange[0])[0];
sourceEditor.revealRange(new vscode.Range(
sourceEditor.document.positionAt(mapped[1].sourceRange[0]),
sourceEditor.document.positionAt(mapped[1].sourceRange[1]),
));
}
}
}
}
if (shouldUpdate) {
sourceEditor.setDecorations(mappingDecorationType, mappingDecorationRanges);
sourceEditor.setDecorations(mappingSelectionDecorationType, mappingSelectionDecorationRanges);
}
}
}
}