Java Code Examples for com.intellij.psi.util.PsiTreeUtil#prevVisibleLeaf()

The following examples show how to use com.intellij.psi.util.PsiTreeUtil#prevVisibleLeaf() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ExpandLocalOpenIntention.java    From reasonml-idea-plugin with MIT License 6 votes vote down vote up 
@Override
void runInvoke(@NotNull Project project, @NotNull PsiLocalOpen parentElement) {
    // parentElement is the scope: Module.Module «( ... )»
    RmlTypes types = RmlTypes.INSTANCE;
    PsiElement grandParentElement = parentElement.getParent();

    // Extract the module path (and remove path nodes)
    String modulePath = "";
    PsiElement sibling = PsiTreeUtil.prevVisibleLeaf(parentElement);
    while (sibling != null && (sibling.getNode().getElementType() == types.UIDENT || sibling.getNode().getElementType() == types.DOT)) {
        ASTNode currentNode = sibling.getNode();
        if (!modulePath.isEmpty() || currentNode.getElementType() != types.DOT) {
            modulePath = sibling.getText() + modulePath;
        }
        sibling = PsiTreeUtil.prevVisibleLeaf(sibling);
        grandParentElement.getNode().removeChild(currentNode);
    }

    String text = parentElement.getText();
    PsiElement newOpen = ORCodeFactory.createExpression(project, "{ open " + modulePath + "; " + text.substring(1, text.length() - 1) + "; }");
    if (newOpen != null) {
        grandParentElement.getNode().replaceChild(parentElement.getNode(), newOpen.getNode());
    }
}
Example 2
Source File: GraphQLDocumentationProvider.java    From js-graphql-intellij-plugin with MIT License 6 votes vote down vote up 
@Nullable
private String getTypeDocumentation(PsiElement element, GraphQLTypeDefinitionRegistryServiceImpl typeRegistryService, GraphQLSchema schema, GraphQLTypeNameDefinition parent) {
    graphql.schema.GraphQLType schemaType = schema.getType(((GraphQLNamedElement) element).getName());
    if (schemaType != null) {
        final StringBuilder html = new StringBuilder().append(DEFINITION_START);
        PsiElement keyword = PsiTreeUtil.prevVisibleLeaf(parent);
        if (keyword != null) {
            html.append(keyword.getText()).append(" ");
        }
        html.append(element.getText());
        html.append(DEFINITION_END);
        final String description = typeRegistryService.getTypeDescription(schemaType);
        if (description != null) {
            html.append(CONTENT_START);
            html.append(GraphQLDocumentationMarkdownRenderer.getDescriptionAsHTML(description));
            html.append(CONTENT_END);
        }
        return html.toString();
    }
    return null;
}
Example 3
Source File: JSGraphQLEndpointCompletionContributor.java    From js-graphql-intellij-plugin with MIT License 6 votes vote down vote up 
private PsiElement findPreviousLeaf(PsiElement start, IElementType typeToFind, TokenSet skipping) {
	PsiElement result = PsiTreeUtil.prevVisibleLeaf(start);
	while (result != null) {
		if (result instanceof PsiWhiteSpace || result instanceof PsiComment) {
			result = PsiTreeUtil.prevVisibleLeaf(result);
			continue;
		}
		if (result.getNode().getElementType() == typeToFind) {
			return result;
		}
		if (!skipping.contains(result.getNode().getElementType())) {
			// not allowed
			return null;
		}
		result = PsiTreeUtil.prevVisibleLeaf(result);
	}
	return null;
}
Example 4
Source File: BaseQNameFinder.java    From reasonml-idea-plugin with MIT License 5 votes vote down vote up 
@NotNull
protected String extractPathName(@NotNull PsiElement element, @NotNull ORTypes types) {
    String path = "";

    PsiElement prevLeaf = PsiTreeUtil.prevVisibleLeaf(element);
    if (prevLeaf != null && prevLeaf.getNode().getElementType() == types.DOT) {
        // Extract the qualified name of current element
        PsiElement prevSibling = prevLeaf.getPrevSibling();

        if (prevSibling instanceof PsiNamedElement) {
            String name = ((PsiNamedElement) prevSibling).getName();
            path = name == null ? "" : name;
            prevSibling = prevSibling.getPrevSibling();
        }

        while (prevSibling != null && prevSibling.getNode().getElementType() == types.DOT) {
            prevSibling = prevSibling.getPrevSibling();
            if (prevSibling instanceof PsiNamedElement) {
                path = ((PsiNamedElement) prevSibling).getName() + "." + path;
                prevSibling = prevSibling.getPrevSibling();
            } else {
                break;
            }
        }
    }
    return path;
}
Example 5
Source File: GraphQLCompletionContributor.java    From js-graphql-intellij-plugin with MIT License 5 votes vote down vote up 
private void completeTopLevelKeywords() {
    CompletionProvider<CompletionParameters> provider = new CompletionProvider<CompletionParameters>() {
        @Override
        protected void addCompletions(@NotNull final CompletionParameters parameters, ProcessingContext context, @NotNull CompletionResultSet result) {
            final LogicalPosition completionPos = parameters.getEditor().offsetToLogicalPosition(parameters.getOffset());
            final PsiElement prevVisibleLeaf = PsiTreeUtil.prevVisibleLeaf(parameters.getPosition());
            if (prevVisibleLeaf != null) {
                // NOTE: "type Foo <completion>" would grammatically allow a new definition to follow immediately
                // but this completion at that position is likely to be unexpected and would interfere with "implements" on types
                // so we expect top level keywords to be the first visible element on the line to complete
                if (completionPos.line == parameters.getEditor().offsetToLogicalPosition(prevVisibleLeaf.getTextOffset()).line) {
                    return;
                }
            }
            for (String keyword : TOP_LEVEL_KEYWORDS) {
                // TODO filter schema if already declared
                LookupElementBuilder element = LookupElementBuilder.create(keyword).withBoldness(true);
                if (keyword.equals("{")) {
                    element = element.withInsertHandler((ctx, item) -> {
                        EditorModificationUtil.insertStringAtCaret(ctx.getEditor(), "}");
                        PsiDocumentManager.getInstance(ctx.getProject()).commitDocument(ctx.getEditor().getDocument());
                        ctx.getEditor().getCaretModel().moveCaretRelatively(-1, 0, false, false, false);
                    });
                } else {
                    element = element.withInsertHandler(AddSpaceInsertHandler.INSTANCE_WITH_AUTO_POPUP);
                }
                result.addElement(element);
            }
        }
    };
    extend(CompletionType.BASIC, TOP_LEVEL_KEYWORD_PATTERN, provider);
}
Example 6
Source File: JSGraphQLEndpointCreateDefinitionIntention.java    From js-graphql-intellij-plugin with MIT License 5 votes vote down vote up 
private JSGraphQLEndpointNamedTypePsiElement getUnknownNamedType(PsiElement element) {
    if (element instanceof PsiWhiteSpace || element.getNode().getElementType() == JSGraphQLEndpointTokenTypes.RPAREN) {
        // lean left in case there's a quick-fix possibility before the cursor
        element = PsiTreeUtil.prevVisibleLeaf(element);
    }
    if (element != null && element.getParent() instanceof JSGraphQLEndpointNamedTypePsiElement) {
        PsiReference reference = element.getParent().getReference();
        if (reference != null && reference.resolve() == null) {
            return (JSGraphQLEndpointNamedTypePsiElement) element.getParent();
        }
    }
    return null;
}
Example 7
Source File: BashFoldingBuilder.java    From BashSupport with Apache License 2.0 5 votes vote down vote up 
private boolean isFoldableBlock(ASTNode node, IElementType keyword) {
    if (node.getElementType() == LOGICAL_BLOCK_ELEMENT) {
        final PsiElement prev = PsiTreeUtil.prevVisibleLeaf(node.getPsi());
        return prev != null
                && prev.getNode().getElementType() == keyword;
    }
    return false;
}
Example 8
Source File: CompletionUtils.java    From reasonml-idea-plugin with MIT License 4 votes vote down vote up 
@Nullable
static IElementType getPrevNodeType(@NotNull PsiElement element) {
    PsiElement prevLeaf = PsiTreeUtil.prevVisibleLeaf(element);
    return prevLeaf == null ? null : prevLeaf.getNode().getElementType();
}
Example 9
Source File: JSGraphQLEndpointCompletionContributor.java    From js-graphql-intellij-plugin with MIT License 4 votes vote down vote up 
public JSGraphQLEndpointCompletionContributor() {

		CompletionProvider<CompletionParameters> provider = new CompletionProvider<CompletionParameters>() {
			@Override
			protected void addCompletions(@NotNull final CompletionParameters parameters, ProcessingContext context, @NotNull CompletionResultSet result) {

				final PsiFile file = parameters.getOriginalFile();

				if (!(file instanceof JSGraphQLEndpointFile)) {
					return;
				}

				final boolean autoImport = parameters.isExtendedCompletion() || parameters.getCompletionType() == CompletionType.SMART;

				final PsiElement completionElement = Optional.ofNullable(parameters.getOriginalPosition()).orElse(parameters.getPosition());
				if (completionElement != null) {

					final PsiElement parent = completionElement.getParent();
					final PsiElement leafBeforeCompletion = PsiTreeUtil.prevVisibleLeaf(completionElement);

					// 1. complete on interface name after IMPLEMENTS token
					if (completeImplementableInterface(result, autoImport, completionElement, leafBeforeCompletion)) {
						return;
					}

					// 2. import file
					if (completeImportFile(result, file, parent)) {
						return;
					}

					// 3.A. top level completions, e.g. keywords and definition annotations
					if (completeKeywordsAndDefinitionAnnotations(result, autoImport, completionElement, leafBeforeCompletion, parent)) {
						return;
					}

					// 3.B. implements when type definition surrounds completion element (e.g. when it has a FieldDefinitionSet)
					if (completeImplementsInsideTypeDefinition(result, completionElement, parent)) {
						return;
					}

					// 4. completions inside FieldDefinitionSet
					final JSGraphQLEndpointFieldDefinitionSet fieldDefinitionSet = PsiTreeUtil.getParentOfType(completionElement, JSGraphQLEndpointFieldDefinitionSet.class);
					if (fieldDefinitionSet != null) {

						// 4.A. field/argument type completion
						if (completeFieldOrArgumentType(result, autoImport, completionElement)) {
							return;
						}

						// 4.B. annotations
						if (completeAnnotations(result, autoImport, file, completionElement)) {
							return;
						}

						// 4.C. annotation arguments
						if (completeAnnotationArguments(result, file, completionElement, leafBeforeCompletion)) {
							return;
						}

						// 4.D. override for interface fields
						if (completeOverrideFields(fieldDefinitionSet, completionElement, result)) {
							return;
						}
					}

					// 5. completions inside SchemaDefinition
					if (completeInsideSchemaDefinition(result, completionElement, leafBeforeCompletion)) {
						return;
					}

				}

			}
		};

		extend(CompletionType.BASIC, PlatformPatterns.psiElement(), provider);
		extend(CompletionType.SMART, PlatformPatterns.psiElement(), provider);

	}
Example 10
Source File: HaskellCompletionContributor.java    From intellij-haskforce with Apache License 2.0 4 votes vote down vote up 
public static void completeKeywordQualified(@NotNull final PsiElement position, @NotNull final CompletionResultSet result) {
    final PsiElement prevLeaf = PsiTreeUtil.prevVisibleLeaf(position);
    if (prevLeaf != null && prevLeaf.getText().equals("import")) {
        result.addElement(LookupElementUtil.fromString("qualified "));
    }
}