Graphical Modeling Framework Runtime - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 418

contributionItemProviders">
<contributionItemProvider
class="org.eclipse.gmf.runtime.diagram.ui.providers.
DiagramContributionItemProvider">
<Priority name="Low"/>
<popupContribution
class="org.eclipse.gmf.runtime.diagram.ui.providers.
DiagramContextMenuProvider">
<popupStructuredContributionCriteria
objectClass="org.eclipse.gmf.runtime.diagram.ui.
editparts.IPrimaryEditPart"
objectCount="2+">
<method
name="getDiagramEditDomain().getEditorPart()
.getEditorSite().getId()"
value="LogicEditor"/>
</popupStructuredContributionCriteria>
<popupAction path="/formatMenu/miscellaneousGroup"
id="groupAction"/>
</popupContribution>
<popupContribution
class="org.eclipse.gmf.runtime.diagram.ui.providers.
DiagramContextMenuProvider">
<popupStructuredContributionCriteria
objectClass="org.eclipse.gmf.runtime.diagram.ui.
editparts.GroupEditPart">
<method
name="getDiagramEditDomain().getEditorPart()
.getEditorSite().getId()"
value="LogicEditor"/>
</popupStructuredContributionCriteria>
<popupAction path="/formatMenu/miscellaneousGroup"
id="ungroupAction"/>
</popupContribution>
</contributionItemProvider>
</extension>
API information:
The value of the contribution item provider class attribute must be a fully
qualified name of a Java class that implements org.eclipse.gmf.run-
time.common.ui.services.action.contributionitem . IContribu-
tionItemProvider .
For convenience, this can be a subclass of org.eclipse.gmf.runtime.
common.ui.services.action.contributiontem . AbstractContribu-
tionItemProvider .
The order of contribution is given as follows, implying that a contribution
path must fully exist before being used as a path of contribution:
The priority of the provider (lowest first)
The order of the definition within the XML file