Examples with ContentAssistContext org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext used on opensource projects

Example 11 with ContentAssistContext

use of org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext in project xtext-eclipse by eclipse.

the class ContentAssistProcessorTestBuilder method assertMatchString.

public ContentAssistProcessorTestBuilder assertMatchString(String matchString) throws Exception {
    String currentModelToParse = getModel();
    final XtextResource xtextResource = loadHelper.getResourceFor(new StringInputStream(currentModelToParse));
    final IXtextDocument xtextDocument = getDocument(xtextResource, currentModelToParse);
    XtextSourceViewerConfiguration configuration = get(XtextSourceViewerConfiguration.class);
    Shell shell = new Shell();
    try {
        ISourceViewer sourceViewer = getSourceViewer(shell, xtextDocument, configuration);
        IContentAssistant contentAssistant = configuration.getContentAssistant(sourceViewer);
        String contentType = xtextDocument.getContentType(currentModelToParse.length());
        if (contentAssistant.getContentAssistProcessor(contentType) != null) {
            ContentAssistContext.Factory factory = get(ContentAssistContext.Factory.class);
            ContentAssistContext[] contexts = factory.create(sourceViewer, currentModelToParse.length(), xtextResource);
            for (ContentAssistContext context : contexts) {
                Assert.assertTrue("matchString = '" + matchString + "', actual: '" + context.getPrefix() + "'", "".equals(context.getPrefix()) || matchString.equals(context.getPrefix()));
            }
        } else {
            Assert.fail("No content assistant for content type " + contentType);
        }
        return this;
    } finally {
        shell.dispose();
    }
}

Example 12 with ContentAssistContext

use of org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext in project xtext-eclipse by eclipse.

the class CrossReferenceProposalTest method testBug276742_09b.

@Test
public void testBug276742_09b() throws Exception {
    String modelAsString = "Foo {}";
    ContentAssistProcessorTestBuilder builder = newBuilder();
    XtextContentAssistProcessor processor = get(XtextContentAssistProcessor.class);
    XtextResource resource = getResourceFromString(modelAsString);
    ITextViewer viewer = builder.getSourceViewer(modelAsString, builder.getDocument(resource, modelAsString));
    ContentAssistContext[] contexts = processor.getContextFactory().create(viewer, 0, resource);
    assertEquals(1, contexts.length);
    for (ContentAssistContext context : contexts) {
        assertEquals(CrossReferenceProposalTestPackage.Literals.MODEL, context.getCurrentModel().eClass());
    }
}

Example 13 with ContentAssistContext

use of org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext in project xtext-eclipse by eclipse.

the class CrossReferenceProposalTest method testBug356185.

@Test
public void testBug356185() throws Exception {
    final String content = "Foo {}";
    XtextResourceSet rs = new XtextResourceSet() {

        @Override
        protected void demandLoad(Resource resource) throws IOException {
            resource.load(new StringInputStream(content), null);
        }
    };
    rs.setClasspathURIContext(getClass());
    XtextResource resource1 = (XtextResource) rs.createResource(URI.createURI("test1." + getCurrentFileExtension()));
    resource1.load(new StringInputStream(content), null);
    Model model = (Model) resource1.getContents().get(0);
    URI classToShowURI = EcoreUtil.getURI(model.getElements().get(0));
    resource1.unload();
    ClassImpl classToShow = (ClassImpl) CrossReferenceProposalTestFactory.eINSTANCE.createClass();
    classToShow.eSetProxyURI(classToShowURI);
    ResourceSet resourceSet = resource1.getResourceSet();
    XtextResource resource2 = (XtextResource) resourceSet.createResource(URI.createURI("test." + getCurrentFileExtension()));
    resource2.load(new StringInputStream("Foo <- Bar {}"), null);
    ContentAssistContext.Builder builder = get(ContentAssistContext.Builder.class);
    builder.setResource(resource2);
    builder.setReplaceRegion(new Region(0, 0));
    model = (Model) resource2.getContents().get(0);
    Class contextClass = model.getElements().get(0);
    ICompositeNode node = NodeModelUtils.getNode(contextClass);
    builder.setCurrentNode(node);
    builder.setMatcher(new PrefixMatcher() {

        @Override
        public boolean isCandidateMatchingPrefix(String name, String prefix) {
            return true;
        }
    });
    ContentAssistContext context = builder.toContext();
    ContentProposalProvider proposalProvider = get(ContentProposalProvider.class);
    proposalProvider.setConflictHelper(new IProposalConflictHelper() {

        @Override
        public boolean existsConflict(String proposal, ContentAssistContext context) {
            return false;
        }
    });
    Function<IEObjectDescription, ICompletionProposal> proposalFactory = proposalProvider.getProposalFactory(context);
    ConfigurableCompletionProposal proposal = (ConfigurableCompletionProposal) proposalFactory.apply(new EObjectDescription(QualifiedName.create("Foo"), classToShow, null));
    assertTrue(classToShow.eIsProxy());
    Object additionalProposalInfo = proposal.getAdditionalProposalInfo(new NullProgressMonitor());
    assertNotNull(additionalProposalInfo);
}

Example 14 with ContentAssistContext

use of org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext in project xtext-eclipse by eclipse.

the class XtextProposalProvider method completeGrammar_UsedGrammars.

@Override
public void completeGrammar_UsedGrammars(EObject model, Assignment assignment, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
    ContentAssistContext decorated = context.copy().setMatcher(fqnPrefixMatcher).toContext();
    super.completeGrammar_UsedGrammars(model, assignment, decorated, acceptor);
}

Example 15 with ContentAssistContext

use of org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext in project xtext-eclipse by eclipse.

the class JdtTypesProposalProvider method searchAndCreateProposals.

protected void searchAndCreateProposals(IJavaSearchScope scope, final ICompletionProposalFactory proposalFactory, ContentAssistContext context, EReference typeReference, final Filter filter, final IValueConverter<String> valueConverter, final ICompletionProposalAcceptor acceptor) throws JavaModelException {
    String prefix = context.getPrefix();
    List<String> split = Strings.split(prefix, '.');
    char[] typeName = null;
    char[] packageName = null;
    if (prefix.length() > 0 && !split.isEmpty()) {
        CharMatcher dotMatcher = CharMatcher.is('.');
        if (Character.isUpperCase(split.get(split.size() - 1).charAt(0))) {
            typeName = split.get(split.size() - 1).toCharArray();
            if (split.size() > 1)
                packageName = ("*" + dotMatcher.replaceFrom(prefix.substring(0, prefix.length() - (typeName.length + 1)), "*.") + "*").toCharArray();
        } else {
            if (prefix.endsWith("."))
                prefix = prefix.substring(0, prefix.length() - 1);
            packageName = ("*" + dotMatcher.replaceFrom(prefix, "*.") + "*").toCharArray();
        }
    }
    IScope typeScope = null;
    if (context.getCurrentModel() != null) {
        typeScope = scopeProvider.getScope(context.getCurrentModel(), typeReference);
    }
    final IReplacementTextApplier textApplier = createTextApplier(context, typeScope, qualifiedNameConverter, valueConverter);
    final ICompletionProposalAcceptor scopeAware = textApplier != null ? new ICompletionProposalAcceptor.Delegate(acceptor) {

        @Override
        public void accept(ICompletionProposal proposal) {
            if (proposal instanceof ConfigurableCompletionProposal) {
                ((ConfigurableCompletionProposal) proposal).setTextApplier(textApplier);
            }
            super.accept(proposal);
        }
    } : acceptor;
    Builder contextBuilder = context.copy();
    final PrefixMatcher original = context.getMatcher();
    contextBuilder.setMatcher(new PrefixMatcher() {

        @Override
        public boolean isCandidateMatchingPrefix(String name, String prefix) {
            if (original.isCandidateMatchingPrefix(name, prefix))
                return true;
            String nameWithoutDollars = name.replace('$', '.');
            String prefixWithoutDollars = prefix.replace('$', '.');
            final boolean nameOrPrefixHasDollars = (nameWithoutDollars != name) || (prefixWithoutDollars != prefix);
            if (nameOrPrefixHasDollars && original.isCandidateMatchingPrefix(nameWithoutDollars, prefixWithoutDollars))
                return true;
            String sub = nameWithoutDollars;
            int delimiter = sub.indexOf('.');
            while (delimiter != -1) {
                sub = sub.substring(delimiter + 1);
                delimiter = sub.indexOf('.');
                if (delimiter == -1 || prefixWithoutDollars.length() > 0 && Character.isLowerCase(prefixWithoutDollars.charAt(0))) {
                    if (original.isCandidateMatchingPrefix(sub, prefixWithoutDollars))
                        return true;
                }
            }
            return false;
        }
    });
    final ContentAssistContext myContext = contextBuilder.toContext();
    final IJvmTypeProvider jvmTypeProvider = jdtTypeProviderFactory.findOrCreateTypeProvider(context.getResource().getResourceSet());
    final Set<String> filteredTypeNames = getDirtyTypeNames();
    final Filter dirtyTypenameFilter = new ITypesProposalProvider.Filter() {

        @Override
        public boolean accept(int modifiers, char[] packageName, char[] simpleTypeName, char[][] enclosingTypeNames, String path) {
            if (path == null || path.endsWith(".class") || path.endsWith(".java")) {
                // Java index match
                String identifier = getIdentifier(packageName, simpleTypeName, enclosingTypeNames);
                if (filteredTypeNames.contains(identifier)) {
                    return false;
                }
            }
            return true;
        }

        @Override
        public int getSearchFor() {
            return filter.getSearchFor();
        }
    };
    BasicSearchEngine searchEngine = new BasicSearchEngine();
    searchEngine.searchAllTypeNames(packageName, SearchPattern.R_PATTERN_MATCH, typeName, SearchPattern.R_PREFIX_MATCH | SearchPattern.R_CAMELCASE_MATCH, filter.getSearchFor(), scope, new IRestrictedAccessTypeRequestor() {

        @Override
        public void acceptType(int modifiers, char[] packageName, char[] simpleTypeName, char[][] enclosingTypeNames, String path, AccessRestriction access) {
            if (dirtyTypenameFilter.accept(modifiers, packageName, simpleTypeName, enclosingTypeNames, path) && filter.accept(modifiers, packageName, simpleTypeName, enclosingTypeNames, path) && (!checkAccessRestriction() || (access == null || access.getProblemId() != IProblem.ForbiddenReference && !access.ignoreIfBetter()))) {
                StringBuilder fqName = new StringBuilder(packageName.length + simpleTypeName.length + 1);
                if (packageName.length != 0) {
                    fqName.append(packageName);
                    fqName.append('.');
                }
                for (char[] enclosingType : enclosingTypeNames) {
                    /*
								 * the JDT index sometimes yields enclosingTypeNames in the form
								 * char[][] { { Outer$Middle } }
								 * rather than
								 * char[][] { { Outer }, { Middle } }
								 * thus we create the fqName as the binary name and post process the proposal later on
								 */
                    fqName.append(enclosingType);
                    fqName.append('$');
                }
                fqName.append(simpleTypeName);
                String fqNameAsString = fqName.toString();
                createTypeProposal(fqNameAsString, modifiers, enclosingTypeNames.length > 0, proposalFactory, myContext, scopeAware, jvmTypeProvider, valueConverter);
            }
        }
    }, IJavaSearchConstants.WAIT_UNTIL_READY_TO_SEARCH, new NullProgressMonitor() {

        @Override
        public boolean isCanceled() {
            return !acceptor.canAcceptMoreProposals();
        }
    });
    if (acceptor.canAcceptMoreProposals()) {
        Iterable<IEObjectDescription> allDirtyTypes = dirtyStateManager.getExportedObjectsByType(TypesPackage.Literals.JVM_TYPE);
        for (IEObjectDescription description : allDirtyTypes) {
            QualifiedName qualifiedName = description.getQualifiedName();
            final int modifiers = getDirtyStateModifiers(context, description);
            if (filter.accept(modifiers, qualifiedName.skipLast(1).toString().toCharArray(), qualifiedName.getLastSegment().toCharArray(), new char[0][0], description.getEObjectURI().toPlatformString(true))) {
                String fqName = description.getQualifiedName().toString();
                createTypeProposal(fqName, modifiers, fqName.indexOf('$') > 0, proposalFactory, myContext, scopeAware, jvmTypeProvider, valueConverter);
            }
        }
    }
}