Hi All
As workaround for editing NULL values in CellTable i've extended Column
All works nice till use of SingleSelectionModel
With selection model editing null values goes random, some values can be
edited, some not, after few tries selection model stops responding
Related exception stack trace below:
[ERROR] com.google.gwt.core.client.JavaScriptException: (TypeError)
> @com.google.gwt.dom.client.Element::focus()([]): this.focus is not a
> function
> [ERROR] at
> com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:249)
> [ERROR] at
> com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
> [ERROR] at
> com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:570)
> [ERROR] at
> com.google.gwt.dev.shell.ModuleSpace.invokeNativeVoid(ModuleSpace.java:298)
> [ERROR] at
> com.google.gwt.dev.shell.JavaScriptHost.invokeNativeVoid(JavaScriptHost.java:107)
> [ERROR] at com.google.gwt.dom.client.Element$.focus$(Element.java)
> [ERROR] at
> com.google.gwt.cell.client.EditTextCell.resetFocus(EditTextCell.java:240)
> [ERROR] at
> com.google.gwt.cell.client.EditTextCell.resetFocus(EditTextCell.java:1)
> [ERROR] at
> com.google.gwt.user.cellview.client.AbstractCellTable.resetFocusOnCellImpl(AbstractCellTable.java:2575)
> [ERROR] at
> com.google.gwt.user.cellview.client.AbstractCellTable.resetFocusOnCell(AbstractCellTable.java:2193)
> [ERROR] at
> com.google.gwt.user.cellview.client.AbstractHasData$View$1.execute(AbstractHasData.java:290)
> [ERROR] at
> com.google.gwt.user.cellview.client.CellBasedWidgetImpl.resetFocus(CellBasedWidgetImpl.java:102)
> [ERROR] at
> com.google.gwt.user.cellview.client.AbstractHasData$View.resetFocus(AbstractHasData.java:287)
> [ERROR] at
> com.google.gwt.user.cellview.client.HasDataPresenter.resolvePendingState(HasDataPresenter.java:1374)
> [ERROR] at
> com.google.gwt.user.cellview.client.HasDataPresenter.access$3(HasDataPresenter.java:1062)
> [ERROR] at
> com.google.gwt.user.cellview.client.HasDataPresenter$2.execute(HasDataPresenter.java:984)
> [ERROR] at
> com.google.gwt.core.client.impl.SchedulerImpl$Task$.executeScheduled$(SchedulerImpl.java:50)
> [ERROR] at
> com.google.gwt.core.client.impl.SchedulerImpl.runScheduledTasks(SchedulerImpl.java:228)
> [ERROR] at
> com.google.gwt.core.client.impl.SchedulerImpl.flushFinallyCommands(SchedulerImpl.java:327)
> [ERROR] at com.google.gwt.core.client.impl.Impl.exit(Impl.java:266)
> [ERROR] at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:257)
> [ERROR] at sun.reflect.GeneratedMethodAccessor286.invoke(Unknown
> Source)
> [ERROR] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [ERROR] at java.lang.reflect.Method.invoke(Method.java:601)
> [ERROR] at
> com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
> [ERROR] at
> com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
> [ERROR] at
> com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
> [ERROR] at
> com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293)
> [ERROR] at
> com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547)
> [ERROR] at
> com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
> [ERROR] at java.lang.Thread.run(Thread.java:722)
>
Example class for reproducing exception below:
> public class GwtBugTest0 {
>
> // Entity
> class Man {
> String name;
> Date birth;
> }
>
> // column that renders [NONE] for null and is updater, also gives
> initial value for updater
> abstract class NoneColumn<T, V> extends Column<T, V> implements
> FieldUpdater<T, V> {
> V def;
>
> public NoneColumn(Cell<V> cell, V def) {
> super(cell);
> this.def = def;
> setFieldUpdater(this);
> }
>
> @Override
> public V getValue(T object) {
> V ret = getRawValue(object);
> return ret == null ? def : ret;
> }
>
> @Override
> public void render(Context context, T object, SafeHtmlBuilder sb) {
> if (getRawValue(object) == null)
> sb.appendHtmlConstant("[NONE]");
> else
> super.render(context, object, sb);
> }
>
> protected abstract V getRawValue(T c);
> }
>
> // CellTable
> class ManTable extends CellTable<Man> {
>
> public ManTable() {
> DateTimeFormat DTF = DateTimeFormat.getFormat("yyyy-MM-dd");
> Column<Man, String> nameColumn = new NoneColumn<Man,
> String>(new EditTextCell(), "") {
> @Override
> protected String getRawValue(Man c) {
> return c.name;
> }
>
> @Override
> public void update(int index, Man object, String value) {
> object.name = value;
> }
> };
> addColumn(nameColumn, "Name");
>
> Column<Man, Date> birthColumn = new NoneColumn<Man, Date>(new
> DatePickerCell(DTF), new Date()) {
> @Override
> protected Date getRawValue(Man c) {
> return c.birth;
> }
>
> @Override
> public void update(int index, Man object, Date value) {
> object.birth = value;
> }
> };
> addColumn(birthColumn, "Birth");
> }
> }
>
> public void test1() {
> List<Man> list = new ArrayList<Man>();
> Random r = new Random();
> for (int i = 0; i < 10; i++) {
> Man m = new Man();
> if (r.nextBoolean())
> m.name = "John " + i;
> if (r.nextBoolean())
> m.birth = new Date(r.nextLong());
> list.add(m);
> }
> ManTable table = new ManTable();
> table.setRowData(list);
> SingleSelectionModel<Man> selectionModel = new
> SingleSelectionModel<Man>();
> table.setSelectionModel(selectionModel);
> RootPanel.get().add(table);
> }
I would be very grateful if you could help me find workaround or correct
way to implement desired behaviour
Thanks!
P.
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