Create a Self‑Discipline IDEA Plugin: Step‑by‑Step StopCoding Guide

Preface

Inspired by personal experience of long hours coding without breaks, the author created a small IntelliJ IDEA plugin named StopCoding to enforce regular rest periods. The plugin displays an unclosable dialog at set intervals, forcing the user to pause coding.

Installation Guide

Search for "StopCoding" in IDEA's plugin marketplace and install it (officially approved).

For internal network users, download the plugin package from the provided link and install it locally.

Usage

Open the Tools → StopCoding menu.

Configure the desired interval and save the settings.

During work, the plugin will show a reminder dialog that cannot be closed until the countdown finishes, ensuring a proper break.

Development Guide

The plugin is built with basic Java knowledge, using Swing for UI and java.util.Timer for scheduling.

Plugin Structure

plugin.xml

: Core configuration file defining actions and extensions. data package: Contains SettingData (configuration model) and DataCenter (runtime static variables). service package: Includes TimerService for timer logic. task package: Defines RestTask (rest period) and WorkTask (work period). ui package: Holds SettingDialog (settings UI) and TipsDialog (rest reminder UI). StopCodingSettingAction: Entry point action registered in plugin.xml.

Swing Dialog Creation

IDEA provides visual tools for creating Swing dialogs. The dialog includes OK and Cancel buttons with pre‑attached listeners.

public class TestDialog extends JDialog {
    private JPanel contentPane;
    private JButton buttonOK;
    private JButton buttonCancel;

    public TestDialog() {
        setContentPane(contentPane);
        setModal(true);
        getRootPane().setDefaultButton(buttonOK);
        buttonOK.addActionListener(e -> onOK());
        buttonCancel.addActionListener(e -> onCancel());
        // other code
    }
}

Timer Implementation

The plugin uses java.util.Timer to schedule work and rest intervals. Typical usage involves creating a TimerTask, scheduling it with schedule(), and cancelling with cancel() when needed.

Conclusion

With the basics covered—installation, usage, plugin architecture, Swing UI, and timer logic—developers can explore the source code and create their own IntelliJ IDEA plugins to improve productivity and health.