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package com.intellij.structuralsearch;
import com.intellij.codeInsight.template.TemplateContextType;
import com.intellij.codeInsight.template.XmlContextType;
import com.intellij.lang.Language;
import com.intellij.lang.StdLanguages;
import com.intellij.lang.xml.XMLLanguage;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.fileTypes.StdFileTypes;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.xml.XmlDocument;
import com.intellij.psi.xml.XmlFile;
import com.intellij.psi.xml.XmlTag;
import com.intellij.psi.xml.XmlText;
import com.intellij.structuralsearch.impl.matcher.*;
import com.intellij.structuralsearch.impl.matcher.compiler.GlobalCompilingVisitor;
import com.intellij.structuralsearch.impl.matcher.compiler.XmlCompilingVisitor;
import com.intellij.structuralsearch.impl.matcher.filters.LexicalNodesFilter;
import com.intellij.structuralsearch.impl.matcher.filters.XmlLexicalNodesFilter;
import com.intellij.structuralsearch.plugin.replace.ReplaceOptions;
import com.intellij.structuralsearch.plugin.replace.ReplacementInfo;
import com.intellij.structuralsearch.plugin.replace.impl.ReplacementContext;
import com.intellij.structuralsearch.plugin.replace.impl.Replacer;
import com.intellij.structuralsearch.plugin.replace.impl.ReplacerUtil;
import com.intellij.structuralsearch.plugin.ui.Configuration;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.LocalTimeCounter;
import com.intellij.xml.util.HtmlUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import static com.intellij.structuralsearch.PredefinedConfigurationUtil.createSearchTemplateInfo;
/**
* @author Eugene.Kudelevsky
*/
public class XmlStructuralSearchProfile extends StructuralSearchProfile {
private XmlLexicalNodesFilter myLexicalNodesFilter;
public void compile(PsiElement[] elements, @NotNull GlobalCompilingVisitor globalVisitor) {
elements[0].getParent().accept(new XmlCompilingVisitor(globalVisitor));
}
@NotNull
public PsiElementVisitor createMatchingVisitor(@NotNull GlobalMatchingVisitor globalVisitor) {
return new XmlMatchingVisitor(globalVisitor);
}
@NotNull
@Override
public PsiElementVisitor getLexicalNodesFilter(@NotNull LexicalNodesFilter filter) {
if (myLexicalNodesFilter == null) {
myLexicalNodesFilter = new XmlLexicalNodesFilter(filter);
}
return myLexicalNodesFilter;
}
@NotNull
public CompiledPattern createCompiledPattern() {
return new XmlCompiledPattern();
}
@Override
public boolean canProcess(@NotNull FileType fileType) {
return fileType == StdFileTypes.XML || fileType == StdFileTypes.HTML || fileType == StdFileTypes.JSP ||
fileType == StdFileTypes.JSPX || fileType == StdFileTypes.XHTML;
}
public boolean isMyLanguage(@NotNull Language language) {
return language instanceof XMLLanguage;
}
@NotNull
@Override
public PsiElement[] createPatternTree(@NotNull String text,
@NotNull PatternTreeContext context,
@NotNull FileType fileType,
@Nullable Language language,
String contextName, @Nullable String extension,
@NotNull Project project,
boolean physical) {
final String ext = extension != null ? extension : fileType.getDefaultExtension();
String text1 = context == PatternTreeContext.File ? text : "<QQQ>" + text + "</QQQ>";
final PsiFile fileFromText = PsiFileFactory.getInstance(project)
.createFileFromText("dummy." + ext, fileType, text1, LocalTimeCounter.currentTime(), physical, true);
final XmlDocument document = HtmlUtil.getRealXmlDocument(((XmlFile)fileFromText).getDocument());
if (context == PatternTreeContext.File) {
return new PsiElement[]{document};
}
return document.getRootTag().getValue().getChildren();
}
@Override
public Class<? extends TemplateContextType> getTemplateContextTypeClass() {
return XmlContextType.class;
}
@NotNull
@Override
public FileType detectFileType(@NotNull PsiElement context) {
PsiFile file = context instanceof PsiFile ? (PsiFile)context : context.getContainingFile();
Language contextLanguage = context instanceof PsiFile ? null : context.getLanguage();
if (file.getLanguage() == StdLanguages.HTML || (file.getFileType() == StdFileTypes.JSP && contextLanguage == StdLanguages.HTML)) {
return StdFileTypes.HTML;
}
return StdFileTypes.XML;
}
@Override
public void checkReplacementPattern(Project project, ReplaceOptions options) {
}
@Override
public StructuralReplaceHandler getReplaceHandler(@NotNull ReplacementContext context) {
return new MyReplaceHandler(context);
}
private static class MyReplaceHandler extends StructuralReplaceHandler {
private final ReplacementContext myContext;
private MyReplaceHandler(ReplacementContext context) {
myContext = context;
}
public void replace(ReplacementInfo info, ReplaceOptions options) {
PsiElement elementToReplace = info.getMatch(0);
assert elementToReplace != null;
PsiElement elementParent = elementToReplace.getParent();
String replacementToMake = info.getReplacement();
boolean listContext = elementToReplace.getParent() instanceof XmlTag;
if (listContext) {
doReplaceInContext(info, elementToReplace, replacementToMake, elementParent, myContext);
}
PsiElement[] statements = ReplacerUtil.createTreeForReplacement(replacementToMake, PatternTreeContext.Block, myContext);
if (statements.length > 0) {
PsiElement replacement = ReplacerUtil.copySpacesAndCommentsBefore(elementToReplace, statements, replacementToMake, elementParent);
// preserve comments
Replacer.handleComments(elementToReplace, replacement, myContext);
elementToReplace.replace(replacement);
}
else {
final PsiElement nextSibling = elementToReplace.getNextSibling();
elementToReplace.delete();
assert nextSibling != null;
if (nextSibling.isValid()) {
if (nextSibling instanceof PsiWhiteSpace) {
nextSibling.delete();
}
}
}
}
}
private static void doReplaceInContext(ReplacementInfo info,
PsiElement elementToReplace,
String replacementToMake,
PsiElement elementParent,
ReplacementContext context) {
PsiElement[] statements = ReplacerUtil.createTreeForReplacement(replacementToMake, PatternTreeContext.Block, context);
if (statements.length > 1) {
elementParent.addRangeBefore(statements[0], statements[statements.length - 1], elementToReplace);
}
else if (statements.length == 1) {
PsiElement replacement = statements[0];
Replacer.handleComments(elementToReplace, replacement, context);
try {
elementParent.addBefore(replacement, elementToReplace);
}
catch (IncorrectOperationException e) {
elementToReplace.replace(replacement);
}
}
final int matchSize = info.getMatchesCount();
for (int i = 0; i < matchSize; ++i) {
PsiElement element = info.getMatch(i);
if (element == null) continue;
PsiElement firstToDelete = element;
PsiElement lastToDelete = element;
PsiElement prevSibling = element.getPrevSibling();
PsiElement nextSibling = element.getNextSibling();
if (prevSibling instanceof PsiWhiteSpace) {
firstToDelete = prevSibling;
}
else if (prevSibling == null && nextSibling instanceof PsiWhiteSpace) {
lastToDelete = nextSibling;
}
if (nextSibling instanceof XmlText && i + 1 < matchSize) {
final PsiElement next = info.getMatch(i + 1);
if (next != null && next == nextSibling.getNextSibling()) {
lastToDelete = nextSibling;
}
}
element.getParent().deleteChildRange(firstToDelete, lastToDelete);
}
}
@Override
Configuration[] getPredefinedTemplates() {
return XmlPredefinedConfigurations.createPredefinedTemplates();
}
private static class XmlPredefinedConfigurations {
private static final String HTML_XML = SSRBundle.message("xml_html.category");
private static Configuration[] createPredefinedTemplates() {
return new Configuration[]{
createSearchTemplateInfo("xml tag", "<'a/>", HTML_XML, StdFileTypes.XML),
createSearchTemplateInfo("xml attribute", "<'_tag 'attribute=\"'_value\"/>", HTML_XML, StdFileTypes.XML),
createSearchTemplateInfo("xml attribute value", "<'_tag '_attribute=\"'value\"/>", HTML_XML, StdFileTypes.XML),
createSearchTemplateInfo("xml/html tag value", "<table>'_content*</table>", HTML_XML, StdFileTypes.HTML),
};
}
}
}
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