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| Setting a global action handler |
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| <h3>Setting a global action handler</h3> |
| <p>A plug-in contributes a <a href="wrkAdv_retarget.htm">retargetable action</a> |
| for a view or editor part by implementing an <a href="../reference/api/org/eclipse/jface/action/IAction.html"><b>IAction</b></a> |
| and registering it as a global action handler with the part's action bars. |
| In views, this is usually done at the time that the part creates its actions and |
| controls. For editors see <a href="wrkAdv_retarget_contribute_editors.htm">Retargetable editor actions</a>. |
| The name of the retargeted action (as defined in <a href="../reference/api/org/eclipse/ui/IWorkbenchActionConstants.html"><b>IWorkbenchActionConstants</b></a>) |
| is used to specify which action the handler is intended for. The following |
| shows how the workbench task list view registers its handler for the <b>PROPERTIES</b> |
| action.</p> |
| <pre>public void createPartControl(Composite parent) { |
| ... |
| <b>makeActions();</b> |
| ... |
| |
| // Add global action handlers. |
| ... |
| getViewSite().getActionBars().<b>setGlobalActionHandler( |
| IWorkbenchActionConstants.PROPERTIES, |
| propertiesAction);</b> |
| ...</pre> |
| <p>The properties action is created in the local method <b>makeActions</b>:</p> |
| <pre>void makeActions() { |
| ... |
| // properties |
| propertiesAction = new TaskPropertiesAction(this, "properties"); |
| propertiesAction.setText(TaskListMessages.getString("Properties.text")); |
| propertiesAction.setToolTipText(TaskListMessages.getString("Properties.tooltip")); |
| propertiesAction.setEnabled(false); |
| }</pre> |
| <p>That's all that is needed. Your action will be run when the user |
| chooses the action from the workbench menu bar or tool bar and your view or |
| editor is active. The workbench handles the details of ensuring that the |
| retargeted action is always associated with the currently active view. The |
| same applies to editor actions supplied through the EditorActionBarContributor. |
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