Examples with FoldingRangeCapabilities org.eclipse.lsp4j.FoldingRangeCapabilities used on opensource projects

Example 1 with FoldingRangeCapabilities

use of org.eclipse.lsp4j.FoldingRangeCapabilities in project xtext-core by eclipse.

the class LanguageServerImpl method createServerCapabilities.

/**
 * Configure the server capabilities for this instance.
 *
 * @param params
 *            the initialization parametrs
 * @return the server capabilities
 * @since 2.20
 */
protected ServerCapabilities createServerCapabilities(InitializeParams params) {
    ServerCapabilities serverCapabilities = new ServerCapabilities();
    serverCapabilities.setHoverProvider(true);
    serverCapabilities.setDefinitionProvider(true);
    serverCapabilities.setReferencesProvider(true);
    serverCapabilities.setDocumentSymbolProvider(true);
    serverCapabilities.setWorkspaceSymbolProvider(true);
    Set<? extends IResourceServiceProvider> allLanguages = getAllLanguages();
    if (allLanguages.stream().anyMatch((serviceProvider) -> serviceProvider.get(ICodeLensService.class) != null)) {
        CodeLensOptions codeLensOptions = new CodeLensOptions();
        codeLensOptions.setResolveProvider(allLanguages.stream().anyMatch((serviceProvider) -> serviceProvider.get(ICodeLensResolver.class) != null));
        serverCapabilities.setCodeLensProvider(codeLensOptions);
    }
    serverCapabilities.setCodeActionProvider(allLanguages.stream().anyMatch((serviceProvider) -> serviceProvider.get(ICodeActionService2.class) != null));
    serverCapabilities.setSignatureHelpProvider(new SignatureHelpOptions(ImmutableList.of("(", ",")));
    serverCapabilities.setTextDocumentSync(TextDocumentSyncKind.Incremental);
    CompletionOptions completionOptions = new CompletionOptions();
    completionOptions.setResolveProvider(false);
    completionOptions.setTriggerCharacters(ImmutableList.of("."));
    serverCapabilities.setCompletionProvider(completionOptions);
    serverCapabilities.setDocumentFormattingProvider(true);
    serverCapabilities.setDocumentRangeFormattingProvider(true);
    serverCapabilities.setDocumentHighlightProvider(true);
    ClientCapabilities clientCapabilities = null;
    if (params != null) {
        clientCapabilities = params.getCapabilities();
    }
    TextDocumentClientCapabilities textDocument = null;
    if (clientCapabilities != null) {
        textDocument = clientCapabilities.getTextDocument();
    }
    RenameCapabilities rename = null;
    FoldingRangeCapabilities folding = null;
    if (textDocument != null) {
        rename = textDocument.getRename();
        folding = textDocument.getFoldingRange();
    }
    if (folding != null) {
        serverCapabilities.setFoldingRangeProvider(allLanguages.stream().anyMatch(serviceProvider -> serviceProvider.get(FoldingRangeService.class) != null));
    }
    Boolean prepareSupport = null;
    if (rename != null) {
        prepareSupport = rename.getPrepareSupport();
    }
    boolean clientPrepareSupport = Objects.equal(Boolean.TRUE, prepareSupport);
    if (clientPrepareSupport && allLanguages.stream().anyMatch(serviceProvider -> serviceProvider.get(IRenameService2.class) != null)) {
        RenameOptions renameOptions = new RenameOptions();
        renameOptions.setPrepareProvider(true);
        serverCapabilities.setRenameProvider(Either.<Boolean, RenameOptions>forRight(renameOptions));
    } else {
        serverCapabilities.setRenameProvider(Either.forLeft(allLanguages.stream().anyMatch((serviceProvider) -> serviceProvider.get(IRenameService2.class) != null)));
    }
    WorkspaceClientCapabilities workspace = null;
    if (clientCapabilities != null) {
        workspace = clientCapabilities.getWorkspace();
    }
    ExecuteCommandCapabilities executeCommand = null;
    if (workspace != null) {
        executeCommand = workspace.getExecuteCommand();
        if (workspace.getWorkspaceFolders() == Boolean.TRUE && workspaceManager.isSupportsWorkspaceFolders()) {
            WorkspaceFoldersOptions workspaceFoldersOptions = new WorkspaceFoldersOptions();
            workspaceFoldersOptions.setSupported(true);
            workspaceFoldersOptions.setChangeNotifications(true);
            serverCapabilities.setWorkspace(new WorkspaceServerCapabilities(workspaceFoldersOptions));
        }
    }
    if (executeCommand != null) {
        commandRegistry.initialize(allLanguages, clientCapabilities, client);
        ExecuteCommandOptions executeCommandOptions = new ExecuteCommandOptions();
        executeCommandOptions.setCommands(commandRegistry.getCommands());
        serverCapabilities.setExecuteCommandProvider(executeCommandOptions);
    }
    for (IResourceServiceProvider language : allLanguages) {
        ICapabilitiesContributor capabilitiesContributor = language.get(ICapabilitiesContributor.class);
        if (capabilitiesContributor != null) {
            capabilitiesContributor.contribute(serverCapabilities, params);
        }
    }
    return serverCapabilities;
}