Reviewers: pdr,
Description:
Adding an Async SortHandler that can be used with AsyncDataProvider.
When a table is sorted, it called the setVisibleRangeAndClear() method
to clear the current data and send an event to the AsyncDataProvider to
provide new information.
Please review this at http://gwt-code-reviews.appspot.com/1258801/show
Affected files:
M user/src/com/google/gwt/user/cellview/client/ColumnSortEvent.java
Index: user/src/com/google/gwt/user/cellview/client/ColumnSortEvent.java
===================================================================
--- user/src/com/google/gwt/user/cellview/client/ColumnSortEvent.java
(revision 9493)
+++ user/src/com/google/gwt/user/cellview/client/ColumnSortEvent.java
(working copy)
@@ -18,6 +18,7 @@
import com.google.gwt.event.shared.EventHandler;
import com.google.gwt.event.shared.GwtEvent;
import com.google.gwt.event.shared.HasHandlers;
+import com.google.gwt.view.client.HasData;
import java.util.Collections;
import java.util.Comparator;
@@ -41,6 +42,25 @@
* @param event the {...@link ColumnSortEvent} that was fired
*/
void onColumnSort(ColumnSortEvent event);
+ }
+
+ /**
+ * A default handler used with views attached to asynchronous data
providers
+ * such as {...@link AsyncDataProvider}. This handler calls
+ * {...@link
HasData#setVisibleRangeAndClearData(com.google.gwt.view.client.Range,
boolean)},
+ * which clears the current data and triggers the data provider's range
change
+ * handler.
+ */
+ public static class AsyncHandler implements Handler {
+ private final HasData<?> hasData;
+
+ public AsyncHandler(HasData<?> hasData) {
+ this.hasData = hasData;
+ }
+
+ public void onColumnSort(ColumnSortEvent event) {
+ hasData.setVisibleRangeAndClearData(hasData.getVisibleRange(), true);
+ }
}
/**
--
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