| /* |
| * Copyright 2006 Sascha Weinreuter |
| * |
| * 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 org.intellij.plugins.intelliLang.inject.config.ui; |
| |
| import com.intellij.openapi.project.Project; |
| import com.intellij.util.ui.UIUtil; |
| import org.intellij.plugins.intelliLang.inject.config.BaseInjection; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.lang.reflect.Field; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Abstract base class for the different configuration panels that tries to simplify the use of |
| * of nested forms |
| */ |
| public abstract class AbstractInjectionPanel<T extends BaseInjection> implements InjectionPanel<T> { |
| private final List<Field> myOtherPanels = new ArrayList<Field>(3); |
| private final List<Runnable> myUpdaters = new ArrayList<Runnable>(1); |
| |
| protected final Project myProject; |
| |
| /** |
| * The orignal item - must not be modified unless apply() is called. |
| */ |
| @NotNull |
| protected final T myOrigInjection; |
| |
| /** |
| * Represents the current UI state. Outside access should use {@link #getInjection()} |
| */ |
| private T myEditCopy; |
| |
| protected AbstractInjectionPanel(@NotNull T injection, @NotNull Project project) { |
| myOrigInjection = injection; |
| myProject = project; |
| |
| final Field[] declaredFields = getClass().getDeclaredFields(); |
| for (Field field : declaredFields) { |
| if (InjectionPanel.class.isAssignableFrom(field.getType())) { |
| field.setAccessible(true); |
| myOtherPanels.add(field); |
| } |
| } |
| } |
| |
| public final T getInjection() { |
| apply(myEditCopy); |
| return myEditCopy; |
| } |
| |
| @SuppressWarnings({"unchecked"}) |
| public final void init(@NotNull T copy) { |
| myEditCopy = copy; |
| |
| for (Field panel : myOtherPanels) { |
| final InjectionPanel p = getField(panel); |
| p.init(copy); |
| } |
| } |
| |
| public final boolean isModified() { |
| apply(myEditCopy); |
| |
| for (Field panel : myOtherPanels) { |
| final InjectionPanel p = getField(panel); |
| p.isModified(); |
| } |
| |
| return !myEditCopy.equals(myOrigInjection); |
| } |
| |
| @SuppressWarnings({"unchecked"}) |
| public final void apply() { |
| for (Field panel : myOtherPanels) { |
| getField(panel).apply(); |
| } |
| |
| // auto-generated name should go last |
| apply(myOrigInjection); |
| if (!myOtherPanels.isEmpty()) { |
| myOrigInjection.generatePlaces(); |
| myEditCopy.copyFrom(myOrigInjection); |
| } |
| } |
| |
| protected abstract void apply(T other); |
| |
| @SuppressWarnings({"unchecked"}) |
| public final void reset() { |
| if (!myOtherPanels.isEmpty()) { |
| myEditCopy.copyFrom(myOrigInjection); |
| } |
| for (Field panel : myOtherPanels) { |
| getField(panel).reset(); |
| } |
| UIUtil.invokeAndWaitIfNeeded(new Runnable() { |
| public void run() { |
| resetImpl(); |
| } |
| }); |
| } |
| |
| protected abstract void resetImpl(); |
| |
| public void addUpdater(Runnable updater) { |
| myUpdaters.add(updater); |
| for (Field panel : myOtherPanels) { |
| final InjectionPanel field = getField(panel); |
| field.addUpdater(updater); |
| } |
| } |
| |
| private InjectionPanel getField(Field field) { |
| try { |
| return ((InjectionPanel)field.get(this)); |
| } |
| catch (IllegalAccessException e) { |
| throw new Error(e); |
| } |
| } |
| |
| protected void updateTree() { |
| apply(myEditCopy); |
| for (Runnable updater : myUpdaters) { |
| updater.run(); |
| } |
| } |
| } |