| /* |
| * Copyright 2000-2012 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.usageView.impl; |
| |
| import com.intellij.ide.hierarchy.*; |
| import com.intellij.ide.hierarchy.actions.BrowseHierarchyActionBase; |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.LangDataKeys; |
| import com.intellij.openapi.actionSystem.impl.SimpleDataContext; |
| import com.intellij.openapi.progress.util.ProgressIndicatorBase; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Disposer; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.usageView.UsageInfo; |
| import com.intellij.usageView.UsageViewBundle; |
| import com.intellij.usages.PsiElementUsageTarget; |
| import com.intellij.usages.UsageContextPanel; |
| import com.intellij.usages.UsageTarget; |
| import com.intellij.usages.UsageView; |
| import com.intellij.usages.impl.UsageContextPanelBase; |
| import com.intellij.usages.impl.UsageViewImpl; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| import java.util.List; |
| |
| public class UsageContextCallHierarchyPanel extends UsageContextPanelBase { |
| private HierarchyBrowser myBrowser; |
| |
| public static class Provider implements UsageContextPanel.Provider { |
| @NotNull |
| @Override |
| public UsageContextPanel create(@NotNull UsageView usageView) { |
| return new UsageContextCallHierarchyPanel(((UsageViewImpl)usageView).getProject()); |
| } |
| |
| @Override |
| public boolean isAvailableFor(@NotNull UsageView usageView) { |
| UsageTarget[] targets = ((UsageViewImpl)usageView).getTargets(); |
| if (targets.length == 0) return false; |
| UsageTarget target = targets[0]; |
| if (!(target instanceof PsiElementUsageTarget)) return false; |
| PsiElement element = ((PsiElementUsageTarget)target).getElement(); |
| if (element == null || !element.isValid()) return false; |
| |
| Project project = element.getProject(); |
| DataContext context = SimpleDataContext.getSimpleContext(CommonDataKeys.PSI_ELEMENT.getName(), element, |
| SimpleDataContext.getProjectContext(project)); |
| HierarchyProvider provider = BrowseHierarchyActionBase.findBestHierarchyProvider(LanguageCallHierarchy.INSTANCE, element, context); |
| if (provider == null) return false; |
| PsiElement providerTarget = provider.getTarget(context); |
| return providerTarget != null; |
| } |
| @NotNull |
| @Override |
| public String getTabTitle() { |
| return "Call Hierarchy"; |
| } |
| } |
| |
| public UsageContextCallHierarchyPanel(@NotNull Project project) { |
| super(project); |
| } |
| |
| @Override |
| public void dispose() { |
| super.dispose(); |
| myBrowser = null; |
| } |
| |
| @Override |
| public void updateLayoutLater(@Nullable final List<UsageInfo> infos) { |
| PsiElement element = infos == null ? null : getElementToSliceOn(infos); |
| if (myBrowser instanceof Disposable) { |
| Disposer.dispose((Disposable)myBrowser); |
| myBrowser = null; |
| } |
| if (element != null) { |
| myBrowser = createCallHierarchyPanel(element); |
| if (myBrowser == null) { |
| element = null; |
| } |
| } |
| |
| removeAll(); |
| if (element == null) { |
| JComponent titleComp = new JLabel(UsageViewBundle.message("select.the.usage.to.preview")); |
| add(titleComp, BorderLayout.CENTER); |
| revalidate(); |
| } |
| else { |
| if (myBrowser instanceof Disposable) { |
| Disposer.register(this, (Disposable)myBrowser); |
| } |
| JComponent panel = myBrowser.getComponent(); |
| add(panel, BorderLayout.CENTER); |
| revalidate(); |
| } |
| } |
| |
| @Nullable |
| private static HierarchyBrowser createCallHierarchyPanel(@NotNull PsiElement element) { |
| DataContext context = SimpleDataContext.getSimpleContext(CommonDataKeys.PSI_ELEMENT.getName(), element, SimpleDataContext.getProjectContext(element.getProject())); |
| HierarchyProvider provider = BrowseHierarchyActionBase.findBestHierarchyProvider(LanguageCallHierarchy.INSTANCE, element, context); |
| if (provider == null) return null; |
| PsiElement providerTarget = provider.getTarget(context); |
| if (providerTarget == null) return null; |
| |
| HierarchyBrowser browser = provider.createHierarchyBrowser(providerTarget); |
| if (browser instanceof HierarchyBrowserBaseEx) { |
| HierarchyBrowserBaseEx browserEx = (HierarchyBrowserBaseEx)browser; |
| browserEx.changeView(CallHierarchyBrowserBase.CALLER_TYPE); |
| final ProgressIndicatorBase indicator = new ProgressIndicatorBase(); |
| Disposer.register(browserEx, new Disposable() { |
| @Override |
| public void dispose() { |
| indicator.cancel(); |
| } |
| }); |
| browserEx.setProgressIndicator(indicator); |
| } |
| return browser; |
| } |
| |
| private static PsiElement getElementToSliceOn(@NotNull List<UsageInfo> infos) { |
| UsageInfo info = infos.get(0); |
| return info.getElement(); |
| } |
| } |