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/*
* Copyright 2000-2014 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.
*/
/*
* Created by IntelliJ IDEA.
* User: mike
* Date: Jul 18, 2002
* Time: 10:30:17 PM
* To change template for new class use
* Code Style | Class Templates options (Tools | IDE Options).
*/
package com.intellij.codeInsight.editorActions;
import com.intellij.application.options.editor.WebEditorOptions;
import com.intellij.codeInsight.editorActions.wordSelection.AbstractWordSelectioner;
import com.intellij.ide.highlighter.HighlighterFactory;
import com.intellij.lang.ASTNode;
import com.intellij.lang.Language;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.highlighter.EditorHighlighter;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.util.UnfairTextRange;
import com.intellij.psi.FileViewProvider;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.psi.xml.*;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.xml.util.HtmlUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.LinkedList;
import java.util.List;
public class HtmlSelectioner extends AbstractWordSelectioner {
private static final SelectWordUtil.CharCondition JAVA_IDENTIFIER_AND_HYPHEN_CONDITION = new SelectWordUtil.CharCondition() {
@Override
public boolean value(char ch) {
return Character.isJavaIdentifierPart(ch) || ch == '-';
}
};
private static final String CLASS_ATTRIBUTE_NAME = "class";
public boolean canSelect(PsiElement e) {
return canSelectElement(e);
}
static boolean canSelectElement(final PsiElement e) {
if (e instanceof XmlToken) {
return HtmlUtil.hasHtml(e.getContainingFile());
}
return false;
}
public List<TextRange> select(PsiElement e, @NotNull CharSequence editorText, int cursorOffset, @NotNull Editor editor) {
List<TextRange> result;
if (!(e instanceof XmlToken) ||
XmlTokenSelectioner.shouldSelectToken((XmlToken)e) ||
((XmlToken)e).getTokenType() == XmlTokenType.XML_DATA_CHARACTERS) {
result = super.select(e, editorText, cursorOffset, editor);
}
else {
result = ContainerUtil.newArrayList();
}
final PsiElement parent = e.getParent();
if (parent instanceof XmlComment) {
result.addAll(expandToWholeLine(editorText, parent.getTextRange(), true));
}
PsiFile psiFile = e.getContainingFile();
addAttributeSelection(result, editor, editorText, e);
final FileViewProvider fileViewProvider = psiFile.getViewProvider();
for (Language lang : fileViewProvider.getLanguages()) {
final PsiFile langFile = fileViewProvider.getPsi(lang);
if (langFile != psiFile) addAttributeSelection(result, editor, editorText, fileViewProvider.findElementAt(cursorOffset, lang));
}
EditorHighlighter highlighter = HighlighterFactory.createHighlighter(e.getProject(), psiFile.getVirtualFile());
highlighter.setText(editorText);
addTagSelection2(e, result);
return result;
}
private static void addTagSelection2(PsiElement e, List<TextRange> result) {
XmlTag tag = PsiTreeUtil.getParentOfType(e, XmlTag.class, true);
while (tag != null) {
result.add(tag.getTextRange());
final ASTNode tagStartEnd = XmlChildRole.START_TAG_END_FINDER.findChild(tag.getNode());
final ASTNode tagEndStart = XmlChildRole.CLOSING_TAG_START_FINDER.findChild(tag.getNode());
if (tagStartEnd != null && tagEndStart != null) {
result.add(new UnfairTextRange(tagStartEnd.getTextRange().getEndOffset(),
tagEndStart.getTextRange().getStartOffset()));
}
if (tagStartEnd != null) {
result.add(new TextRange(tag.getTextRange().getStartOffset(),
tagStartEnd.getTextRange().getEndOffset()));
}
if (tagEndStart != null) {
result.add(new TextRange(tagEndStart.getTextRange().getStartOffset(),
tag.getTextRange().getEndOffset()));
}
tag = PsiTreeUtil.getParentOfType(tag, XmlTag.class, true);
}
}
private static void addAttributeSelection(@NotNull List<TextRange> result, @NotNull Editor editor,
@NotNull CharSequence editorText, @Nullable PsiElement e) {
final XmlAttribute attribute = PsiTreeUtil.getParentOfType(e, XmlAttribute.class);
if (attribute != null) {
result.add(attribute.getTextRange());
final XmlAttributeValue value = attribute.getValueElement();
if (value != null) {
if (CLASS_ATTRIBUTE_NAME.equalsIgnoreCase(attribute.getName())) {
addClassAttributeRanges(result, editor, editorText, value);
}
final TextRange range = value.getTextRange();
result.add(range);
if (value.getFirstChild() != null &&
value.getFirstChild().getNode().getElementType() == XmlTokenType.XML_ATTRIBUTE_VALUE_START_DELIMITER) {
result.add(new TextRange(range.getStartOffset() + 1, range.getEndOffset() - 1));
}
}
}
}
@Override
public int getMinimalTextRangeLength(@NotNull PsiElement element, @NotNull CharSequence text, int cursorOffset) {
if (WebEditorOptions.getInstance().isSelectWholeCssIdentifierOnDoubleClick()) {
final XmlAttribute attribute = PsiTreeUtil.getParentOfType(element, XmlAttribute.class);
final XmlAttributeValue attributeValue = PsiTreeUtil.getParentOfType(element, XmlAttributeValue.class);
if (attribute != null && attributeValue != null) {
if (CLASS_ATTRIBUTE_NAME.equalsIgnoreCase(attribute.getName())) {
final TextRange valueTextRange = attributeValue.getValueTextRange();
if (!valueTextRange.isEmpty()) {
int start = cursorOffset;
int end = cursorOffset;
while (start > valueTextRange.getStartOffset()) {
if (!JAVA_IDENTIFIER_AND_HYPHEN_CONDITION.value(text.charAt(start - 1))) {
break;
}
start--;
}
while (end < valueTextRange.getEndOffset()) {
if (!JAVA_IDENTIFIER_AND_HYPHEN_CONDITION.value(text.charAt(end + 1))) {
break;
}
end++;
}
return end - start;
}
}
}
}
return super.getMinimalTextRangeLength(element, text, cursorOffset);
}
private static void addClassAttributeRanges(@NotNull List<TextRange> result, @NotNull Editor editor,
@NotNull CharSequence editorText, @NotNull XmlAttributeValue attributeValue) {
final TextRange attributeValueTextRange = attributeValue.getTextRange();
final LinkedList<TextRange> wordRanges = ContainerUtil.newLinkedList();
SelectWordUtil.addWordSelection(editor.getSettings().isCamelWords(), editorText, editor.getCaretModel().getOffset(), wordRanges,
JAVA_IDENTIFIER_AND_HYPHEN_CONDITION);
for (TextRange range : wordRanges) {
if (attributeValueTextRange.contains(range)) {
result.add(range);
}
}
}
}
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