| /* |
| * Copyright 2000-2009 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 com.intellij.ui.navigation; |
| |
| import com.intellij.openapi.util.ActionCallback; |
| import com.intellij.util.ui.update.ComparableObject; |
| import com.intellij.util.ui.update.ComparableObjectCheck; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.LinkedHashMap; |
| import java.util.Iterator; |
| |
| public class Place implements ComparableObject { |
| |
| private LinkedHashMap<String, Object> myPath = new LinkedHashMap<String, Object>(); |
| |
| @Override |
| @NotNull |
| public final Object[] getEqualityObjects() { |
| return new Object[] {myPath}; |
| } |
| |
| @Override |
| public final boolean equals(final Object obj) { |
| return ComparableObjectCheck.equals(this, obj); |
| } |
| |
| @Override |
| public final int hashCode() { |
| return ComparableObjectCheck.hashCode(this, super.hashCode()); |
| } |
| |
| @NotNull |
| public Place putPath(String name, Object value) { |
| myPath.put(name, value); |
| return this; |
| } |
| |
| @Nullable |
| public |
| Object getPath(String name) { |
| return myPath.get(name); |
| } |
| |
| public Place cloneForElement(final String name, Object value) { |
| final Place clone = new Place(); |
| clone.myPath = (LinkedHashMap<String, Object>)myPath.clone(); |
| clone.myPath.put(name, value); |
| return clone; |
| } |
| |
| public void copyFrom(final Place from) { |
| myPath = (LinkedHashMap<String, Object>)from.myPath.clone(); |
| } |
| |
| public boolean isMoreGeneralFor(final Place place) { |
| if (myPath.size() >= place.myPath.size()) return false; |
| |
| final Iterator<String> thisIterator = myPath.keySet().iterator(); |
| final Iterator<String> otherIterator = place.myPath.keySet().iterator(); |
| |
| while (thisIterator.hasNext()) { |
| String thisKey = thisIterator.next(); |
| String otherKey = otherIterator.next(); |
| if (thisKey == null || !thisKey.equals(otherKey)) return false; |
| |
| final Object thisValue = myPath.get(thisKey); |
| final Object otherValue = place.myPath.get(otherKey); |
| |
| if (thisValue == null || !thisValue.equals(otherValue)) return false; |
| |
| } |
| |
| |
| return true; |
| } |
| |
| |
| public interface Navigator { |
| |
| void setHistory(History history); |
| |
| ActionCallback navigateTo(@Nullable Place place, final boolean requestFocus); |
| |
| void queryPlace(@NotNull Place place); |
| |
| } |
| |
| public static ActionCallback goFurther(Object object, Place place, final boolean requestFocus) { |
| if (object instanceof Navigator) { |
| return ((Navigator)object).navigateTo(place, requestFocus); |
| } |
| return new ActionCallback.Done(); |
| } |
| |
| public static void queryFurther(final Object object, final Place place) { |
| if (object instanceof Navigator) { |
| ((Navigator)object).queryPlace(place); |
| } |
| } |
| |
| } |