@Test
public void serverSideSelection_GridChangingSelectionModel_sendsUpdatedRowsToClient() {
CustomSingleSelectionModel customModel = new CustomSingleSelectionModel();
Grid<String> customGrid =
new Grid<String>() {
{
setSelectionModel(customModel);
}
};
customGrid.setItems("Foo", "Bar", "Baz");
customGrid.getDataCommunicator().beforeClientResponse(true);
Assert.assertFalse(
"Item should have been updated as selected", customModel.generatedData.get("Foo"));
Assert.assertFalse(
"Item should have been updated as NOT selected", customModel.generatedData.get("Bar"));
Assert.assertFalse(
"Item should have been updated as NOT selected", customModel.generatedData.get("Baz"));
customModel.generatedData.clear();
customGrid.getSelectionModel().select("Foo");
customGrid.getDataCommunicator().beforeClientResponse(false);
Assert.assertTrue(
"Item should have been updated as selected", customModel.generatedData.get("Foo"));
Assert.assertFalse(
"Item should have NOT been updated", customModel.generatedData.containsKey("Bar"));
Assert.assertFalse(
"Item should have NOT been updated", customModel.generatedData.containsKey("Baz"));
// switch to another selection model to cause event
customModel.generatedData.clear();
customGrid.setSelectionMode(SelectionMode.MULTI);
customGrid.getDataCommunicator().beforeClientResponse(false);
// since the selection model has been removed, it is no longer a data
// generator for the data communicator, would need to verify somehow
// that row is not marked as selected anymore ? (done in UI tests)
Assert.assertTrue(customModel.generatedData.isEmpty()); // at least
// removed
// selection
// model is not
// triggered
}
/**
* Creates a new clickable renderer with the given presentation type and null representation.
*
* @param presentationType the data type that this renderer displays, not <code>null</code>
* @param nullRepresentation a string that will be sent to the client instead of a regular value
* in case the actual cell value is <code>null</code>. May be <code>null</code>.
*/
protected ClickableRenderer(Class<V> presentationType, String nullRepresentation) {
super(presentationType, nullRepresentation);
registerRpc(
(RendererClickRpc)
(String rowKey, String columnId, MouseEventDetails mouseDetails) -> {
Grid<T> grid = getParentGrid();
T item = grid.getDataCommunicator().getKeyMapper().get(rowKey);
Column column = grid.getColumn(columnId);
fireEvent(new RendererClickEvent<>(grid, item, column, mouseDetails));
});
}