/*
* Copyright 2003-2011 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 jetbrains.mps.lang.editor.generator.internal;
import jetbrains.mps.lang.editor.cellProviders.PropertyCellContext;
import jetbrains.mps.nodeEditor.cellMenu.CellContext;
import jetbrains.mps.nodeEditor.cellMenu.SubstituteInfoPartExt;
import jetbrains.mps.nodeEditor.cells.EditorCell_Label;
import jetbrains.mps.openapi.editor.EditorContext;
import jetbrains.mps.openapi.editor.cells.EditorCell;
import jetbrains.mps.openapi.editor.cells.SubstituteAction;
import jetbrains.mps.smodel.IOperationContext;
import jetbrains.mps.smodel.PropertySupport;
import jetbrains.mps.smodel.action.AbstractNodeSubstituteAction;
import jetbrains.mps.util.NameUtil;
import jetbrains.mps.util.PatternUtil;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.model.SNodeAccessUtil;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public abstract class AbstractCellMenuPart_PropertyPostfixHints implements SubstituteInfoPartExt {
private static final Logger LOG = LogManager.getLogger(AbstractCellMenuPart_PropertyPostfixHints.class);
@Override
public List<SubstituteAction> createActions(CellContext cellContext, EditorContext editorContext) {
SNode node = (SNode) cellContext.get(PropertyCellContext.EDITED_NODE);
final SNode property = (SNode) cellContext.get(PropertyCellContext.PROPERTY_DECLARATION);
if (property == null) {
return Collections.emptyList();
}
final IOperationContext context = editorContext.getOperationContext();
List<String> postfixes = getPostfixes(node, context, editorContext);
if (postfixes == null) {
postfixes = new ArrayList<String>();
}
for (int i = 0; i < postfixes.size(); ) {
if (postfixes.get(i) == null) {
LOG.error("Invalid postfix value (null) was returned from: " + this.getClass() + "; getPostfixes() method");
postfixes.remove(i);
} else {
i++;
}
}
final PostfixGroup postfixGroup = new PostfixGroup(postfixes);
final PropertySupport propertySupport = PropertySupport.getPropertySupport(property);
List<SubstituteAction> actions = new ArrayList<SubstituteAction>(postfixes.size());
for (final String postfix : postfixes) {
actions.add(new PostfixSubstituteAction(postfix, node, postfixGroup,
propertySupport, property.getName()));
}
return actions;
}
public abstract List<String> getPostfixes(SNode node, IOperationContext operationContext, EditorContext editorContext);
public static class PostfixGroup {
private List<String> myPostfixes;
private String myCurrentPattern = null;
private Map<String, String> myModel = new HashMap<String, String>();
private boolean myShowUnpostfixed;
private boolean myUnpostfixedFirst;
public PostfixGroup(List<String> postfixes) {
myPostfixes = postfixes;
}
public boolean canSubstitute(String pattern, String postfix) {
update(pattern);
return myModel.containsKey(postfix);
}
public String getMatchingText(String pattern, String postfix) {
update(pattern);
return myModel.get(postfix);
}
private void update(String pattern) {
pattern = pattern == null ? "" : pattern;
if (!pattern.equals(myCurrentPattern)) {
myCurrentPattern = pattern;
update();
}
}
private void update() {
myModel.clear();
boolean isMatchingSomething = false;
if (myCurrentPattern.length() > 0) {
boolean exactMatch = false;
for (int i = 0; !(isMatchingSomething) && i < myCurrentPattern.length(); i++) {
if (i > 0 && !Character.isUpperCase(myCurrentPattern.charAt(i))) {
continue;
}
Matcher itemMatcher = this.getItemPattern(NameUtil.decapitalize(myCurrentPattern.substring(i))).matcher("");
for (String postfix : myPostfixes) {
itemMatcher.reset(postfix);
if (itemMatcher.matches()) {
isMatchingSomething = true;
if (postfix.equals(myCurrentPattern)) {
exactMatch = true;
}
if (i != 0) {
myModel.put(postfix, myCurrentPattern.substring(0, i) + NameUtil.capitalize(postfix));
} else {
myModel.put(postfix, postfix);
}
}
}
}
myShowUnpostfixed = !exactMatch;
}
myUnpostfixedFirst = !isMatchingSomething;
if (!(isMatchingSomething)) {
for (String postfix : myPostfixes) {
if (myCurrentPattern.length() > 0) {
myModel.put(postfix, myCurrentPattern + NameUtil.capitalize(postfix));
} else {
myModel.put(postfix, postfix);
}
}
}
}
public boolean isShowUnpostfixed(String pattern) {
update(pattern);
return myShowUnpostfixed;
}
public boolean isUnpostfixedFirst(String pattern) {
update(pattern);
return myUnpostfixedFirst;
}
private Pattern getItemPattern(String text) {
final StringBuilder exactItemPatternBuilder = PatternUtil.getExactItemPatternBuilder(text, true, true);
final String itemPattern = exactItemPatternBuilder.append(".*").toString();
return Pattern.compile(itemPattern);
}
}
private static class PostfixSubstituteAction extends AbstractNodeSubstituteAction {
private final String myPostfix;
private final PostfixGroup myPostfixGroup;
private final PropertySupport myPropertySupport;
private final String myPropertyName;
public PostfixSubstituteAction(String postfix, SNode node, PostfixGroup postfixGroup, PropertySupport propertySupport, String propertyName) {
super(null, postfix, node);
myPostfix = postfix;
myPostfixGroup = postfixGroup;
myPropertySupport = propertySupport;
myPropertyName = propertyName;
}
@Override
public boolean canSubstituteStrictly(String pattern) {
return super.canSubstituteStrictly(pattern) && canSubstitute(pattern);
}
@Override
public boolean canSubstitute(String pattern) {
if (myPostfixGroup.canSubstitute(pattern, myPostfix)) {
String text = myPostfixGroup.getMatchingText(pattern, myPostfix);
return myPropertySupport.canSetValue(getSourceNode(), myPropertyName, text);
} else {
return false;
}
}
@Override
protected String getMatchingText(String pattern, boolean referent_presentation, boolean visible) {
return myPostfixGroup.getMatchingText(pattern, myPostfix);
}
@Override
public SNode doSubstitute(@Nullable final EditorContext editorContext, String pattern) {
String propertyName = myPropertyName;
assert propertyName != null;
SNodeAccessUtil.setProperty(getSourceNode(), propertyName, myPostfixGroup.getMatchingText(pattern, myPostfix));
if (editorContext != null) {
// put caret at the end of text, TODO use editorContext.select(getSourceNode(), myPropertyName, -1 /* end */);
editorContext.flushEvents();
EditorCell selectedCell = editorContext.getSelectedCell();
if (selectedCell instanceof EditorCell_Label && ((EditorCell_Label) selectedCell).isEditable()) {
EditorCell_Label cell = (EditorCell_Label) selectedCell;
cell.end();
}
}
return null;
}
}
}