Create IDE bundle and use it in IDE app

We already prepared IDE app for multiproject build. Now we create IDE plugin and use it in IDE app.

Create IDE bundle

Create folder "tutorials/MyIdePlugin", create file "build.gradle" in it, insert code:

apply plugin: 'java'
apply plugin: 'org.akhikhl.wuff.eclipse-ide-bundle'

dependencies {
  compile "${eclipseMavenGroup}:org.eclipse.core.commands:+"
}

We add dependency on org.eclipse.core.commands because we are going to implement menu handler.

Create folder "tutorials/MyIdePlugin/src/main/java/myideplugin", create file "MenuHandler.java" in it, insert code:

package myideplugin;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.PlatformUI;

public final class MenuHandler extends AbstractHandler {

  @Override
  public Object execute(ExecutionEvent event) throws ExecutionException {
    MessageDialog.openInformation(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Information", "Hello, world!");
    return null;
  }
}

Create folder "tutorials/MyIdePlugin/src/main/resources/myideplugin", create file "plugin.xml" in it, insert code:

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
  <extension point="org.eclipse.ui.commands">
    <command id="cmdHelloWorld" name="Show greeting" defaultHandler="myideplugin.MenuHandler">
    </command>
  </extension>
  <extension point="org.eclipse.ui.menus">
    <menuContribution allPopups="true" locationURI="menu:org.eclipse.ui.main.menu?after=additions">
      <menu id="MyMenu" label="My Menu">
        <command commandId="cmdHelloWorld" style="push"/>
      </menu>
    </menuContribution>
  </extension>
</plugin>

Edit file "tutorials/settings.gradle", insert code:

include 'MyIdePlugin'

so that there are two includes - "MyIdeApp" and "MyIdePlugin".

Use IDE bundle in IDE app

Edit file "tutorials/MyIdeApp/build.gradle", insert code:

dependencies {
  compile project(':MyIdePlugin')
}

Compile

Invoke on command line in "tutorials" folder: gradle build.

Check: folder "tutorials/MyIdePlugin/build/libs" must contain file "MyIdePlugin-1.0.0.0.jar", which is proper OSGi bundle with automatically generated manifest.

Check: each product in "tutorials/MyIdeApp/build/output" must contain "MyIdePlugin" and "MyIdeApp" bundles in "plugins" subfolder and in "configuration/config.ini".

Run

Run the compiled product from command line. Fully started program looks like Eclipse IDE with "Resource" perspective. Main menu contains new submenu "My Menu" with menu item "Show greeting":

When you click "Show greeting", the program shows message dialog:

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The example code for this page: examples/IdeApp-4.

Next page: add perspective and view to IDE app.