fileSelectionController,
contentArea);
workspacePlace.registerChildHandler(FileSelectedPlace.PLACE, fileSelectionHandler);
// Register navigation handler for searching within files.
SearchPlaceNavigationHandler searchHandler = new SearchPlaceNavigationHandler(appContext,
contentArea, fileTreeSection.getFileTreeUiController(), workspacePlace);
workspacePlace.registerChildHandler(SearchPlace.PLACE, searchHandler);
}