IntelliJ IDEA Plugin Development

Environment and Infrastructure

Setting Up a Plugin Development Environment
Build Number Ranges
Building Plugins with IntelliJ IDEA 7.0 and Later
Plugin Compatibility with IntelliJ Platform Products

Introduction to Plugin Development

Getting Started with Plugin Development
Basics of Plugin Development (old but mostly still relevant)

Specific Plugin Development Topics

IntelliJ IDEA Architectural Overview
IntelliJ IDEA Action System
IntelliJ IDEA Plugin Structure
Persisting State of Components
Plugin Development FAQ
Developing VCS Integration Plugins for IntelliJ IDEA
Developing Custom Language Plugins for IntelliJ IDEA
IntelliJ IDEA Virtual File System
DOM & JAM (rapid support for XML- and annotations based frameworks)
Localization Guide for IntelliJ IDEA

Sample Plugins

Customizing the IDEA Settings Dialog
Creation of Tool Windows

IntelliJ IDEA Version Differences

Diana Plugin Migration Guide
API changes in IntelliJ IDEA 9 (Maia)