How to Build a Self‑Control IntelliJ Plugin to Stop Coding Fatigue

01 Preface

When I was young, I chose a computer science major because my parents heard it was a good choice. Over the years I have spent countless hours in dorms, labs, and libraries writing C, C++, Java, and other code. After entering the workforce as a developer, long periods of sitting and continuous coding caused back and leg discomfort, prompting me to create a tool to enforce regular breaks.

02 Installation Guide

Install

Search for "StopCoding" in the IntelliJ Marketplace and install the officially approved plugin.

For internal network users, download the plugin from the GitHub release page https://github.com/jogeen/StopCoding/releases/tag/20210104-V1.0 and install it locally.

Usage

Open Tools → StopCoding from the menu bar.

Configure the reminder interval and other parameters, then save.

When the interval elapses, a non‑dismissable dialog appears with a countdown; the IDE loses focus until the break time is completed.

03 Development Tutorial

The plugin is built with basic Java knowledge, using Swing for UI and Timer for scheduling. Its project structure includes:

plugin.xml : Core configuration file.

data package: SettingData (model for configuration) and DataCenter (static runtime data).

service package: TimerService (core timing logic).

task package: RestTask (break timer) and WorkTask (work timer).

ui package: SettingDialog (settings UI) and TipsDialog (break reminder UI).

StopCodingSettingAction : Entry point action.

04 Swing Dialog Creation

Creating dialogs in IntelliJ is straightforward thanks to the IDE's visual designer. The steps are:

Design the dialog layout using the GUI builder.

Add components such as buttons and labels.

Generate event listeners for the buttons.

The default buttons already have click listeners; you can customize them as needed.

public class TestDialog extends JDialog {<br/>    private JPanel contentPane;<br/>    private JButton buttonOK;<br/>    private JButton buttonCancel;<br/><br/>    public TestDialog() {<br/>        setContentPane(contentPane);<br/>        setModal(true);<br/>        getRootPane().setDefaultButton(buttonOK);<br/><br/>        buttonOK.addActionListener(new ActionListener() {<br/>            public void actionPerformed(ActionEvent e) {<br/>                onOK();<br/>            }<br/>        }); // OK button listener<br/><br/>        buttonCancel.addActionListener(new ActionListener() {<br/>            public void actionPerformed(ActionEvent e) {<br/>                onCancel();<br/>            }<br/>        }); // Cancel button listener<br/>    }<br/>    // other code ...<br/>}

05 Timer Usage

The plugin relies on java.util.Timer to schedule work and break periods. Common APIs include the constructor, schedule to add tasks, and cancel to stop the timer.

With these components, developers can build a lightweight IntelliJ plugin that forces periodic breaks, helping prevent coding fatigue and improve health.