Class DidChangeTextDocumentFeature

client/src/client.ts:857–971

}

class DidChangeTextDocumentFeature implements DynamicFeature<TextDocumentChangeRegistrationOptions> {

	private _listener: Disposable | undefined;
	private _changeData: Map<string, DidChangeTextDocumentData> = new Map<string, DidChangeTextDocumentData>();
	private _forcingDelivery: boolean = false;
	private _changeDelayer: { uri: string; delayer: Delayer<void> } | undefined;

	constructor(private _client: BaseLanguageClient) {
	}

	public get messages(): typeof DidChangeTextDocumentNotification.type {
		return DidChangeTextDocumentNotification.type;
	}

	public fillClientCapabilities(capabilities: ClientCapabilities): void {
		ensure(ensure(capabilities, 'textDocument')!, 'synchronization')!.dynamicRegistration = true;
	}

	public initialize(capabilities: ServerCapabilities, documentSelector: DocumentSelector): void {
		let textDocumentSyncOptions = (capabilities as ResolvedTextDocumentSyncCapabilities).resolvedTextDocumentSync;
		if (documentSelector && textDocumentSyncOptions && textDocumentSyncOptions.change !== void 0 && textDocumentSyncOptions.change !== TextDocumentSyncKind.None) {
			this.register(this.messages,
				{
					id: UUID.generateUuid(),
					registerOptions: Object.assign({}, { documentSelector: documentSelector }, { syncKind: textDocumentSyncOptions.change })
				}
			);
		}
	}

	public register(_message: RPCMessageType, data: RegistrationData<TextDocumentChangeRegistrationOptions>): void {
		if (!data.registerOptions.documentSelector) {
			return;
		}
		if (!this._listener) {
			this._listener = Workspace.onDidChangeTextDocument(this.callback, this);
		}
		this._changeData.set(
			data.id,
			{
				documentSelector: data.registerOptions.documentSelector,
				syncKind: data.registerOptions.syncKind
			}
		);
	}

	private callback(event: TextDocumentChangeEvent): void {
		for (const changeData of this._changeData.values()) {
			if (Languages.match(changeData.documentSelector, event.document)) {
				let middleware = this._client.clientOptions.middleware!;
				if (changeData.syncKind === TextDocumentSyncKind.Incremental) {
					let params = this._client.code2ProtocolConverter.asChangeTextDocumentParams(event);
					if (middleware.didChange) {
						middleware.didChange(event, () => this._client.sendNotification(DidChangeTextDocumentNotification.type, params));
					} else {
						this._client.sendNotification(DidChangeTextDocumentNotification.type, params);
					}
				} else if (changeData.syncKind === TextDocumentSyncKind.Full) {