/*
* Copyright 2010 The WicketForge-Team
*
* 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 wicketforge.completion;
import com.intellij.codeInsight.completion.CompletionContributor;
import com.intellij.codeInsight.completion.CompletionParameters;
import com.intellij.codeInsight.completion.CompletionResultSet;
import com.intellij.codeInsight.lookup.LookupElementBuilder;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.fileTypes.StdFileTypes;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.xml.XmlAttribute;
import com.intellij.psi.xml.XmlAttributeValue;
import com.intellij.psi.xml.XmlToken;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import wicketforge.Constants;
import wicketforge.psi.hierarchy.ClassWicketIdHierarchy;
import wicketforge.psi.hierarchy.ClassWicketIdItem;
import wicketforge.psi.hierarchy.HierarchyUtil;
import wicketforge.search.ClassIndex;
/**
*/
public class MarkupWicketIdCompletionContributor extends CompletionContributor {
@Override
public void fillCompletionVariants(final CompletionParameters p, final CompletionResultSet rs) {
ApplicationManager.getApplication().runReadAction(new Runnable() {
@Override
public void run() {
// lets do some basic checks...
PsiFile f = p.getOriginalFile();
if (f.getFileType() == StdFileTypes.HTML) {
PsiElement psiElement = p.getOriginalPosition();
if (psiElement instanceof XmlToken) {
XmlAttributeValue wicketIdAttribute = getWicketIdAttribute((XmlToken) psiElement);
if (wicketIdAttribute != null) {
PsiClass clazz = ClassIndex.getAssociatedClass(f);
if (clazz != null) {
// ... before we search for our parent Item
String parentPath = HierarchyUtil.findPathOf(wicketIdAttribute, true);
if (parentPath != null) {
ClassWicketIdItem item = ClassWicketIdHierarchy.create(clazz).getWicketIdPathMap().get(parentPath);
if (item != null) {
for (ClassWicketIdItem child : item.getChildren()) {
rs.addElement(
LookupElementBuilder.create(child.getWicketId())
//.withIcon(child.getIcon()) // child's icon bother view -> use generic icon
.withIcon(Constants.WICKET_COMPONENT_ICON)
.withTypeText(".java")
.withTailText(" " + child.getLocationString(), true)
);
}
}
}
rs.stopHere();
}
}
}
}
}
});
}
/**
* @param position
* @return XmlAttributeValue if position is wicket:id attribute else null
*/
@Nullable
private XmlAttributeValue getWicketIdAttribute(@NotNull XmlToken position) {
if (!(position.getParent() instanceof XmlAttributeValue)) {
return null;
}
XmlAttributeValue attributeValue = (XmlAttributeValue) position.getParent();
if (!(attributeValue.getParent() instanceof XmlAttribute)) {
return null;
}
XmlAttribute attribute = (XmlAttribute) attributeValue.getParent();
return Constants.WICKET_ID.equals(attribute.getName()) ? attributeValue : null;
}
}