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Eclipse Plug-in Development Beginner's Guide - Second Edition

You're reading from  Eclipse Plug-in Development Beginner's Guide - Second Edition

Product type Book
Published in Aug 2016
Publisher
ISBN-13 9781783980697
Pages 458 pages
Edition 2nd Edition
Languages
Author (1):
Alex Blewitt Alex Blewitt
Profile icon Alex Blewitt

Table of Contents (24) Chapters

Eclipse Plug-in Development Beginner's Guide Second Edition
Credits
Foreword
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
1. Creating Your First Plug-in 2. Creating Views with SWT 3. Creating JFace Viewers 4. Interacting with the User 5. Working with Preferences 6. Working with Resources 7. Creating Eclipse 4 Applications 8. Migrating to Eclipse 4.x 9. Styling Eclipse 4 Applications 10. Creating Features, Update Sites, Applications, and Products 11. Automated Testing of Plug-ins 12. Automated Builds with Tycho 13. Contributing to Eclipse Using OSGi Services to Dynamically Wire Applications Pop Quiz Answers Index

Time for action – creating commands and handlers


Commands and handlers are common to both Eclipse 3.x and the Eclipse 4 model. In Eclipse 3.x, they are represented as extension points in the plugin.xml file under org.eclipse.ui.commands. In Eclipse 4, they are stored in the E4 fragment file.

A command will be created to represent saying "hello world," and a handler will be created to display the message. These will then be used to add a menu item to execute the operation.

  1. Open the fragment for the project, or double-click on the fragment.e4xmi file.

    Tip

    This should open a model editor; if it opens plain XML content, then verify that the E4 tools have been installed correctly.

  2. Select the Model Fragment Definition element and click on Add to create a new fragment. Fill in the fields as follows:

    1. Extended Element ID: org.eclipse.e4.legacy.ide.application (this can be found under the Container-Type: Application from the search field)

    2. Feature Name: commands

  3. Select the newly created Model Fragment if...

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