com.google.idea.blaze.base.scope.scopes.ProjectCloseScope.java Source code

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Here is the source code for com.google.idea.blaze.base.scope.scopes.ProjectCloseScope.java

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/*
 * Copyright 2016 The Bazel Authors. All rights reserved.
 *
 * 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.google.idea.blaze.base.scope.scopes;

import com.google.idea.blaze.base.scope.BlazeContext;
import com.google.idea.blaze.base.scope.BlazeScope;
import com.google.idea.blaze.base.settings.Blaze;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.project.ProjectManager;
import com.intellij.openapi.project.ProjectManagerListener;
import com.intellij.openapi.ui.Messages;
import org.jetbrains.annotations.NotNull;

/** Prevents the user from closing the project while the scope is open. */
public class ProjectCloseScope implements ProjectManagerListener, BlazeScope {

    @NotNull
    private final Project project;

    private boolean isApplicationExitingOrProjectClosing;

    public ProjectCloseScope(@NotNull Project project) {
        this.project = project;
    }

    @Override
    public void onScopeBegin(@NotNull BlazeContext context) {
        ProjectManager projectManager = ProjectManager.getInstance();
        projectManager.addProjectManagerListener(project, this);
    }

    @Override
    public void onScopeEnd(@NotNull BlazeContext context) {
        ProjectManager projectManager = ProjectManager.getInstance();
        projectManager.removeProjectManagerListener(project, this);
    }

    @Override
    public void projectOpened(Project project) {
    }

    @Override
    public boolean canCloseProject(Project project) {
        if (!project.equals(this.project)) {
            return true;
        }
        if (shouldPromptUser()) {
            askUserToWait();
            return false;
        }
        return false;
    }

    @Override
    public void projectClosed(Project project) {
    }

    @Override
    public void projectClosing(Project project) {
        if (project.equals(this.project)) {
            isApplicationExitingOrProjectClosing = true;
        }
    }

    private boolean shouldPromptUser() {
        return !isApplicationExitingOrProjectClosing;
    }

    private void askUserToWait() {
        String buildSystem = Blaze.buildSystemName(project);
        Messages.showMessageDialog(project,
                String.format("Please wait until %s command execution finishes", buildSystem),
                buildSystem + " Running", null);
    }
}