@Override
public void onStateChanged(final StateChangeEvent stateChangeEvent) {
super.onStateChanged(stateChangeEvent);
initialChange = stateChangeEvent.isInitialStateChange();
// Column updates
if (stateChangeEvent.hasPropertyChanged("columns")) {
// Remove old columns
purgeRemovedColumns();
// Add new columns
for (GridColumnState state : getState().columns) {
if (!columnIdToColumn.containsKey(state.id)) {
addColumnFromStateChangeEvent(state);
}
updateColumnFromStateChangeEvent(state);
}
}
if (stateChangeEvent.hasPropertyChanged("columnOrder")) {
if (orderNeedsUpdate(getState().columnOrder)) {
updateColumnOrderFromState(getState().columnOrder);
}
}
// Header and footer
if (stateChangeEvent.hasPropertyChanged("header")) {
updateHeaderFromState(getState().header);
}
if (stateChangeEvent.hasPropertyChanged("footer")) {
updateFooterFromState(getState().footer);
}
// Sorting
if (stateChangeEvent.hasPropertyChanged("sortColumns")
|| stateChangeEvent.hasPropertyChanged("sortDirs")) {
onSortStateChange();
}
// Editor
if (stateChangeEvent.hasPropertyChanged("editorEnabled")) {
getWidget().setEditorEnabled(getState().editorEnabled);
}
// Frozen columns
if (stateChangeEvent.hasPropertyChanged("frozenColumnCount")) {
getWidget().setFrozenColumnCount(getState().frozenColumnCount);
}
// Theme features
String activeTheme = getConnection().getUIConnector().getActiveTheme();
if (lastKnownTheme == null) {
lastKnownTheme = activeTheme;
} else if (!lastKnownTheme.equals(activeTheme)) {
getWidget().resetSizesFromDom();
lastKnownTheme = activeTheme;
}
}
@Override
protected void init() {
super.init();
// All scroll RPC calls are executed finally to avoid issues on init
registerRpc(
GridClientRpc.class,
new GridClientRpc() {
@Override
public void scrollToStart() {
/*
* no need for lazyDetailsScrollAdjuster, because the start is
* always 0, won't change a bit.
*/
Scheduler.get()
.scheduleFinally(
new ScheduledCommand() {
@Override
public void execute() {
getWidget().scrollToStart();
}
});
}
@Override
public void scrollToEnd() {
Scheduler.get()
.scheduleFinally(
new ScheduledCommand() {
@Override
public void execute() {
getWidget().scrollToEnd();
// Scrolls further if details opens.
lazyDetailsScroller.scrollToRow(
dataSource.size() - 1, ScrollDestination.END);
}
});
}
@Override
public void scrollToRow(final int row, final ScrollDestination destination) {
Scheduler.get()
.scheduleFinally(
new ScheduledCommand() {
@Override
public void execute() {
getWidget().scrollToRow(row, destination);
// Scrolls a bit further if details opens.
lazyDetailsScroller.scrollToRow(row, destination);
}
});
}
@Override
public void recalculateColumnWidths() {
getWidget().recalculateColumnWidths();
}
});
/* Item click events */
getWidget().addBodyClickHandler(itemClickHandler);
getWidget().addBodyDoubleClickHandler(itemClickHandler);
/* Style Generators */
getWidget().setCellStyleGenerator(styleGenerator);
getWidget().setRowStyleGenerator(styleGenerator);
getWidget()
.addSortHandler(
new SortHandler<JsonObject>() {
@Override
public void sort(SortEvent<JsonObject> event) {
List<SortOrder> order = event.getOrder();
String[] columnIds = new String[order.size()];
SortDirection[] directions = new SortDirection[order.size()];
for (int i = 0; i < order.size(); i++) {
SortOrder sortOrder = order.get(i);
CustomGridColumn column = (CustomGridColumn) sortOrder.getColumn();
columnIds[i] = column.id;
directions[i] = sortOrder.getDirection();
}
if (!Arrays.equals(columnIds, getState().sortColumns)
|| !Arrays.equals(directions, getState().sortDirs)) {
// Report back to server if changed
getRpcProxy(GridServerRpc.class)
.sort(columnIds, directions, event.isUserOriginated());
}
}
});
getWidget().setEditorHandler(editorHandler);
getWidget().addColumnReorderHandler(columnReorderHandler);
getWidget().addColumnVisibilityChangeHandler(columnVisibilityChangeHandler);
getWidget().addColumnResizeHandler(columnResizeHandler);
ConnectorFocusAndBlurHandler.addHandlers(this);
getWidget().setDetailsGenerator(customDetailsGenerator);
getLayoutManager().registerDependency(this, getWidget().getElement());
layout();
}