1. Creating Your First Plug-in
by Dr. Alex Blewitt
Eclipse 4 Plug-in Development by Example Beginner's Guide
- Eclipse 4 Plug-in Development by Example Beginner's Guide
- Table of Contents
- Eclipse 4 Plug-in Development by Example Beginner's Guide
- Credits
- About the Author
- Acknowledgement
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Creating Your First Plug-in
- Getting started
- Time for action – setting up the Eclipse SDK environment
- Creating your first plug-in
- Time for action – creating a plug-in
- Running plug-ins
- Time for action – launching Eclipse from within Eclipse
- Debugging a plug-in
- Time for action – debugging a plug-in
- Time for action – updating code in debugger
- Debugging with step filters
- Time for action – setting up step filtering
- Using different breakpoint types
- Time for action – breaking at method entry and exit
- Using conditional breakpoints
- Time for action – setting a conditional breakpoint
- Using exceptional breakpoints
- Time for action – catching exceptions
- Time for action – using watch variables and expressions
- Summary
- 2. Creating Views with SWT
- Creating views and widgets
- Time for action – creating a view
- Time for action – drawing a custom view
- Time for action – drawing a second hand
- Time for action – animating the second hand
- Time for action – running on the UI thread
- Time for action – creating a reusable widget
- Time for action – using layouts
- Managing resources
- Time for action – getting colorful
- Time for action – finding the leak
- Time for action – plugging the leak
- Interacting with the user
- Time for action – getting in focus
- Time for action – responding to input
- Using other SWT widgets
- Time for action – adding items to the tray
- Time for action – responding to the user
- Time for action – modal and other effects
- Time for action – groups and tab folders
- Summary
- 3. Creating JFace Viewers
- Why JFace?
- Creating TreeViewers
- Time for action – creating a TreeViewer
- Time for action – using Images in JFace
- Time for action – styling label providers
- Sorting and filtering
- Time for action – sorting items in a viewer
- Time for action – filtering items in a viewer
- Interaction and properties
- Time for action – adding a double-click listener
- Time for action – showing properties
- Tabular data
- Time for action – viewing time zones in tables
- Time for action – syncing selection
- Summary
- 4. Interacting with the User
- Creating actions, commands, and handlers
- Time for action – adding context menus
- Time for action – creating commands and handlers
- Time for action – binding commands to keys
- Time for action – changing contexts
- Time for action – enabling and disabling the menu's items
- Time for action – reusing expressions
- Time for action – contributing commands to pop-up menus
- Jobs and progress
- Time for action – running operations in the background
- Time for action – reporting progress
- Time for action – dealing with cancellation
- Time for action – using subtasks and subprogress monitors
- Time for action – using null progress monitors and submonitors
- Time for action – setting job properties
- Reporting errors
- Time for action – showing errors
- Summary
- 5. Storing Preferences and Settings
- Storing preferences
- Time for action – persisting a value
- Time for action – creating a preference page
- Time for action – creating warning and error messages
- Time for action – choosing from a list
- Time for action – using a grid
- Time for action – placing the preferences page
- Time for action – using other field editors
- Time for action – adding keywords
- Time for action: using IEclipsePreferences
- Using IMemento and DialogSettings
- Time for action – adding a memento for the Time Zone View
- Time for action – using DialogSettings
- Summary
- 6. Working with Resources
- Using the workspace and resources
- Time for action – creating an editor
- Time for action – writing the markup parser
- Time for action – building the builder
- Time for action – iterating through resources
- Time for action – creating resources
- Time for action – implementing incremental builds
- Time for action – handling deletion
- Using natures
- Time for action – creating a nature
- Using markers
- Time for action – error markers if the file is empty
- Time for action – registering a marker type
- Summary
- 7. Understanding the Eclipse 4 Model
- Working with the Eclipse 4 model
- Time for action – installing E4 tooling
- Time for action – creating an E4 application
- Time for action – creating a part
- Time for action – styling the UI with CSS
- Using services and contexts
- Time for action – adding logging
- Time for action – getting the window
- Time for action – obtaining the selection
- Time for action – dealing with events
- Time for action – calculating values on demand
- Time for action – using preferences
- Time for action – interacting with the UI
- Using Commands, Handlers, and MenuItems
- Time for action – wiring a menu to a command with a handler
- Time for action – passing command parameters
- Time for action – creating a direct menu and keybindings
- Time for action – creating a pop-up menu and a view menu
- Creating custom injectable classes
- Time for action – creating a simple service
- Time for action – injecting subtypes
- Summary
- 8. Creating Features, Update Sites, Applications, and Products
- Grouping plug-ins with features
- Time for action – creating a feature
- Time for action – exporting a feature
- Time for action – installing a feature
- Time for action – categorizing the update site
- Time for action – depending on other features
- Time for action – branding features
- Building applications and products
- Time for action – creating a headless application
- Time for action – creating a product
- Summary
- 9. Automated Testing of Plug-ins
- Using JUnit for automated testing
- Time for action – writing a simple JUnit test case
- Time for action – writing a plug-in test
- Using SWTBot for user interface testing
- Time for action – writing an SWTBot test
- Time for action – working with menus
- Working with SWTBot
- Time for action – hiding the welcome screen
- Time for action – avoiding SWTBot runtime errors
- Working with views
- Time for action – showing views
- Time for action – interrogating views
- Interacting with the UI
- Time for action – getting values from the UI
- Time for action – waiting for a condition
- Summary
- 10. Automated Builds with Tycho
- Using Maven to build Eclipse plug-ins with Tycho
- Time for action – installing Maven
- Time for action – building with Tycho
- Building features and update sites with Tycho
- Time for action – creating a parent project
- Time for action – building a feature
- Time for action – building an update site
- Time for action – building a product
- Testing and releasing
- Time for action – running automated tests
- Time for action – changing the version numbers
- Signing update sites
- Time for action – creating a self-signed certificate
- Time for action – signing the plug-ins
- Time for action – serving an update site
- Summary
- A. Pop Quiz Answers
- Chapter 1, Creating Your First Plug-in
- Chapter 2, Creating Views with SWT
- Chapter 3, Creating JFace Viewers
- Chapter 4, Interacting with the User
- Chapter 5, Storing Preferences and Settings
- Chapter 6, Working with Resources
- Chapter 7, Understanding the Eclipse 4 Model
- Chapter 8, Creating Features, Update Sites, Applications, and Products
- Chapter 9, Automated Testing of Plug-ins
- Chapter 10, Automated Builds with Tycho
- Index
Eclipse is a highly modular application, consisting of hundreds of plug-ins, and can be extended by installing additional plug-ins. Plug-ins are developed and debugged with the Plug-in Development Environment (PDE).
In this chapter, we shall:
- Set up an Eclipse environment for performing plug-in development
- Create a plug-in with the new plug-in wizard
- Launch a new Eclipse instance with the plug-in enabled
- Debug the Eclipse plug-in
Developing plug-ins requires an Eclipse development environment. This book has been developed and tested on Juno (Eclipse 4.2) Kepler (4.3). Use the most recent version available.
Eclipse plug-ins are generally written in Java. Although it's possible to use other JVM-based languages (such as Groovy or Scala), this book will use the Java language.
There are several different packages of Eclipse available from the downloads page, each of which contains a different combination of plug-ins. This book has been tested with:
- Eclipse SDK from http://download.eclipse.org/eclipse/downloads/
- Eclipse Classic and Eclipse Standard from http://www.eclipse.org/downloads/
These contain the necessary Plug-in Development Environment (PDE) feature as well as the source code, the help documentation, and other useful features. (The RCP and RAP package should not be used, as it will cause problems with exercises in the Chapter 7, Understanding the Eclipse 4 Model.)
It is also possible to install the Eclipse PDE feature into an existing Eclipse instance. To do this, go to the Help menu and select Install New Software, followed by choosing the General Purpose Tools category from the update site. The Eclipse Plug-in Development Environment feature contains everything needed to create a new plug-in.
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