java/debugger/impl/src/com/intellij/debugger/actions/PsiMethodListPopupStep.java

/*
 * 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.debugger.actions;

import com.intellij.codeInsight.unwrap.ScopeHighlighter;
import com.intellij.debugger.DebuggerBundle;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.ui.popup.*;
import com.intellij.psi.PsiLambdaExpression;
import com.intellij.psi.PsiMethod;
import com.intellij.psi.PsiSubstitutor;
import com.intellij.psi.util.PsiFormatUtil;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import java.util.List;

/**
 * @author Eugene Zhuravlev
*         Date: Nov 21, 2006
*/
class PsiMethodListPopupStep implements ListPopupStep<SmartStepTarget> {
  private final List<SmartStepTarget> myTargets;
  private final OnChooseRunnable myStepRunnable;
  private final ScopeHighlighter myScopeHighlighter;

  public interface OnChooseRunnable {
    void execute(SmartStepTarget stepTarget);
  }

  public PsiMethodListPopupStep(Editor editor, final List<SmartStepTarget> targets, final OnChooseRunnable stepRunnable) {
    myTargets = targets;
    myScopeHighlighter = new ScopeHighlighter(editor);
    myStepRunnable = stepRunnable;
  }

  @NotNull
  public ScopeHighlighter getScopeHighlighter() {
    return myScopeHighlighter;
  }

  @NotNull
  public List<SmartStepTarget> getValues() {
    return myTargets;
  }

  public boolean isSelectable(SmartStepTarget value) {
    return true;
  }

  public Icon getIconFor(SmartStepTarget aValue) {
    if (aValue instanceof MethodSmartStepTarget) {
      return ((MethodSmartStepTarget)aValue).getMethod().getIcon(0);
    }
    if (aValue instanceof LambdaSmartStepTarget) {
      return AllIcons.Nodes.Function;
    }
    return null;
  }

  @NotNull
    public String getTextFor(SmartStepTarget value) {
    final String label = value.getLabel();
    final String formatted;
    if (value instanceof MethodSmartStepTarget) {
      final PsiMethod method = ((MethodSmartStepTarget)value).getMethod();
      formatted = PsiFormatUtil.formatMethod(
        method,
        PsiSubstitutor.EMPTY,
        PsiFormatUtil.SHOW_NAME | PsiFormatUtil.SHOW_PARAMETERS,
        PsiFormatUtil.SHOW_TYPE,
        999
      );
    }
    else if (value instanceof LambdaSmartStepTarget){
      final PsiLambdaExpression lambda = ((LambdaSmartStepTarget)value).getLambda();
      formatted = PsiFormatUtil.formatType(lambda.getType(), 0, PsiSubstitutor.EMPTY);
    }
    else {
      formatted = "";
    }
    return label != null? label + formatted : formatted;
  }

  public ListSeparator getSeparatorAbove(SmartStepTarget value) {
    return null;
  }

  public int getDefaultOptionIndex() {
    return 0;
  }

  public String getTitle() {
    return DebuggerBundle.message("title.smart.step.popup");
  }

  public PopupStep onChosen(SmartStepTarget selectedValue, final boolean finalChoice) {
    if (finalChoice) {
      myScopeHighlighter.dropHighlight();
      myStepRunnable.execute(selectedValue);
    }
    return FINAL_CHOICE;
  }

  public Runnable getFinalRunnable() {
    return null;
  }

  public boolean hasSubstep(SmartStepTarget selectedValue) {
    return false;
  }

  public void canceled() {
    myScopeHighlighter.dropHighlight();
  }

  public boolean isMnemonicsNavigationEnabled() {
    return false;
  }

  public MnemonicNavigationFilter getMnemonicNavigationFilter() {
    return null;
  }

  public boolean isSpeedSearchEnabled() {
    return false;
  }

  public SpeedSearchFilter getSpeedSearchFilter() {
    return null;
  }

  public boolean isAutoSelectionEnabled() {
    return false;
  }
}