/*
* Copyright 2000-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.intellij.plugins.markdown.highlighting;
import com.intellij.lang.annotation.Annotation;
import com.intellij.lang.annotation.AnnotationHolder;
import com.intellij.lang.annotation.Annotator;
import com.intellij.openapi.editor.colors.TextAttributesKey;
import com.intellij.openapi.fileTypes.SyntaxHighlighter;
import com.intellij.openapi.project.DumbAware;
import com.intellij.psi.PsiElement;
import com.intellij.psi.impl.source.tree.LeafPsiElement;
import com.intellij.psi.tree.IElementType;
import org.intellij.plugins.markdown.lang.MarkdownElementTypes;
import org.intellij.plugins.markdown.lang.MarkdownTokenTypes;
import org.jetbrains.annotations.NotNull;
public class MarkdownHighlightingAnnotator implements Annotator, DumbAware {
private static final SyntaxHighlighter SYNTAX_HIGHLIGHTER = new MarkdownSyntaxHighlighter();
@Override
public void annotate(@NotNull PsiElement element, @NotNull AnnotationHolder holder) {
final IElementType type = element.getNode().getElementType();
if (type == MarkdownTokenTypes.EMPH) {
final PsiElement parent = element.getParent();
if (parent == null) {
return;
}
final IElementType parentType = parent.getNode().getElementType();
if (parentType == MarkdownElementTypes.EMPH || parentType == MarkdownElementTypes.STRONG) {
final Annotation annotation = holder.createInfoAnnotation(element, null);
annotation.setTextAttributes(parentType == MarkdownElementTypes.EMPH
? MarkdownHighlighterColors.ITALIC_MARKER_ATTR_KEY
: MarkdownHighlighterColors.BOLD_MARKER_ATTR_KEY);
}
return;
}
if (element instanceof LeafPsiElement) {
return;
}
final TextAttributesKey[] tokenHighlights = SYNTAX_HIGHLIGHTER.getTokenHighlights(type);
if (tokenHighlights.length > 0 && !MarkdownHighlighterColors.TEXT_ATTR_KEY.equals(tokenHighlights[0])) {
final Annotation annotation = holder.createInfoAnnotation(element, null);
annotation.setTextAttributes(tokenHighlights[0]);
}
}
}