com.intellij.ide.actions.NewElementAction.java Source code

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Here is the source code for com.intellij.ide.actions.NewElementAction.java

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/*
 * 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.ide.actions;

import com.intellij.ide.IdeBundle;
import com.intellij.ide.IdeView;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.popup.JBPopupFactory;
import com.intellij.openapi.ui.popup.ListPopup;
import com.intellij.openapi.util.Condition;
import org.jetbrains.annotations.Nullable;

/**
 * @author Konstantin Bulenkov
 */
@SuppressWarnings({ "MethodMayBeStatic" })
public class NewElementAction extends AnAction implements DumbAware, PopupAction {
    @Override
    public void actionPerformed(final AnActionEvent event) {
        showPopup(event.getDataContext());
    }

    protected void showPopup(DataContext context) {
        createPopup(context).showInBestPositionFor(context);
    }

    protected ListPopup createPopup(DataContext dataContext) {
        return JBPopupFactory.getInstance().createActionGroupPopup(getPopupTitle(), getGroup(dataContext),
                dataContext, isShowNumbers(), isShowDisabledActions(), isHonorActionMnemonics(),
                getDisposeCallback(), getMaxRowCount(), getPreselectActionCondition(dataContext));
    }

    protected int getMaxRowCount() {
        return -1;
    }

    @Nullable
    protected Condition<AnAction> getPreselectActionCondition(DataContext dataContext) {
        return LangDataKeys.PRESELECT_NEW_ACTION_CONDITION.getData(dataContext);
    }

    @Nullable
    protected Runnable getDisposeCallback() {
        return null;
    }

    protected boolean isHonorActionMnemonics() {
        return false;
    }

    protected boolean isShowDisabledActions() {
        return false;
    }

    protected boolean isShowNumbers() {
        return false;
    }

    protected String getPopupTitle() {
        return IdeBundle.message("title.popup.new.element");
    }

    @Override
    public void update(AnActionEvent e) {
        final Presentation presentation = e.getPresentation();
        final DataContext context = e.getDataContext();
        final Project project = CommonDataKeys.PROJECT.getData(context);
        if (project == null) {
            presentation.setEnabled(false);
            return;
        }
        if (Boolean.TRUE.equals(LangDataKeys.NO_NEW_ACTION.getData(context))) {
            presentation.setEnabled(false);
            return;
        }
        final IdeView ideView = LangDataKeys.IDE_VIEW.getData(context);
        if (ideView == null) {
            presentation.setEnabled(false);
            return;
        }

        presentation.setEnabled(!ActionGroupUtil.isGroupEmpty(getGroup(context), e));
    }

    protected ActionGroup getGroup(DataContext dataContext) {
        return (ActionGroup) ActionManager.getInstance().getAction(IdeActions.GROUP_WEIGHING_NEW);
    }
}