/**
* Sets the current page to be the one corresponding to the given index in the page history.
*
* @param index the index into the page history
*/
private void jumpToHistory(int index) {
if (index >= 0 && index < history.size()) {
historyIndex = index;
dialog.setCurrentPageId(getHistoryEntry(index).getId());
}
updateHistoryControls();
}
/**
* Registers the given action with the workbench command support.
*
* @param action the action to register.
*/
private void registerKeybindings(IAction action) {
final IHandler handler = new ActionHandler(action);
final IHandlerService handlerService =
(IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
final IHandlerActivation activation =
handlerService.activateHandler(
action.getActionDefinitionId(), handler, new ActiveShellExpression(dialog.getShell()));
activations.add(activation);
}