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| /****************************************************************************** |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
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| * Contributors: |
| * IBM Corporation - initial API and implementation |
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| |
| <p>Provides a set of classes that implement a <code>Service</code> that |
| facilitates the contribution of actions to modeling platform workbench |
| parts. It is meant to address some of the deficiencies in the Eclipse |
| support for static action contributions, as follows:</p> |
| <ul> |
| <li>adds support for static contribution of custom contribution items</li> |
| |
| <li>adds support for static menu contributions to toolbar managers</li> |
| |
| <li>adds support for static contributions to menu managers that have |
| been added programmatically to a toolbar</li> |
| |
| <li>adds support for complex action enablement and visibility criteria</li> |
| </ul> |
| |
| <p>In order to contribute contributions items to the service, clients |
| should use the <code>org.eclipse.gmf.runtime.common.ui.services.action.contributionItemProviders</code> |
| extension point. The provider implementation specified in the extension |
| point should subclass the {@link |
| org.eclipse.gmf.runtime.common.ui.services.action.contributionitem.AbstractContributionItemProvider} |
| class in this package.</p> |
| |
| <p>Contributions made through this extension point could be for a workbench |
| part's action bars (referred to as part contributions) or for a workbench |
| part's popup menu (referred to as popup contributions). The extension point |
| provides an XML description of those contributions to be read by the described |
| providers. The extension point provides an alternative to the following Eclipse extension points: |
| </P> |
| <UL> |
| <LI>org.eclipse.ui.editorActions</LI> |
| <LI>org.eclipse.ui.viewActions</LI> |
| <LI>org.eclipse.ui.popupMenus (viewerContribution)</LI> |
| </UL> |
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