Example usage for com.google.gwt.event.dom.client FocusHandler FocusHandler

Introduction

In this page you can find the example usage for com.google.gwt.event.dom.client FocusHandler FocusHandler.

Prototype

FocusHandler

Source Link

Usage

From source file:org.geosdi.geoplatform.gui.client.widget.wfs.FeatureAttributesWidget.java

License:Open Source License

private ColumnModel prepareColumnModel() {
    List<AttributeDTO> attributesDTO = this.layerSchemaBinder.getLayerSchemaDTO().getAttributes();
    List<ColumnConfig> configs = Lists.<ColumnConfig>newArrayListWithCapacity(attributesDTO.size());

    for (final AttributeDTO att : attributesDTO) {
        final GPSecureStringTextField valueTextField = new GPSecureStringTextField();
        valueTextField.setValidator(AttributeCustomFieldsMap.getValidatorForAttributeType(att.getType()));
        valueTextField.setAutoValidate(true);
        if (att.isDateType()) {
            FocusHandler focusHandler = new FocusHandler() {

                @Override/*from www.  ja v  a2  s  .c o  m*/
                public void onFocus(FocusEvent event) {
                    dataAttributeName = att.getName();
                    timeInputWidget.show();
                }

            };

            valueTextField.addHandler(focusHandler, FocusEvent.getType());
        }

        ColumnConfig valueColumn = new ColumnConfig();
        String name = att.getName();
        valueColumn.setId(name);
        valueColumn.setHeaderHtml(name);
        valueColumn.setEditor(buildCellEditor(valueTextField));
        valueColumn.setWidth((name.length() + 1) * 10);
        valueColumn.setToolTip("Datatype: " + att.getType());
        configs.add(valueColumn);
    }

    return new ColumnModel(configs);
}

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From source file:org.gss_project.gss.web.client.FilesPropertiesDialog.java

License:Open Source License

/**
 * The widget's constructor./*from w w  w  .j a v  a2 s. c  o  m*/
 *
 * @param _files
 */
public FilesPropertiesDialog(final List<FileResource> _files) {
    super();

    files = _files;
    int versionedNum = 0;
    for (FileResource fr : files)
        if (fr.isVersioned())
            versionedNum++;
    Boolean versioned = null;
    if (versionedNum == 0)
        versioned = false;
    if (versionedNum == files.size())
        versioned = true;
    initialVersioned = versioned;
    versionedCheck = new TristateCheckBox(versioned);

    // Set the dialog's caption.
    setText("Files properties");

    // Outer contains inner and buttons.
    final VerticalPanel outer = new VerticalPanel();
    final FocusPanel focusPanel = new FocusPanel(outer);
    // Inner contains generalPanel and permPanel.
    inner = new DecoratedTabPanel();
    inner.setAnimationEnabled(true);
    final VerticalPanel generalPanel = new VerticalPanel();
    final HorizontalPanel buttons = new HorizontalPanel();
    final VerticalPanel verPanel = new VerticalPanel();
    final HorizontalPanel vPanel = new HorizontalPanel();

    inner.add(generalPanel, "General");
    inner.add(verPanel, "Versions");
    inner.selectTab(0);

    final FlexTable generalTable = new FlexTable();
    generalTable.setText(0, 0, String.valueOf(files.size()) + " files selected");
    generalTable.setText(1, 0, "Folder");
    generalTable.setText(2, 0, "Tags");
    FileResource firstFile = files.get(0);
    if (firstFile.getFolderName() != null)
        generalTable.setText(1, 1, firstFile.getFolderName());
    else
        generalTable.setText(1, 1, "-");

    // Find if tags are identical
    List<String> tagsList = files.get(0).getTags();
    List<String> tagss;
    for (int i = 1; i < files.size(); i++) {
        tagss = files.get(i).getTags();
        if (tagsList.size() != tagss.size() || !tagsList.containsAll(tagss)) {
            tagsList = null;
            break;
        }
    }
    // Get the tags.
    StringBuffer tagsBuffer = new StringBuffer();
    if (tagsList == null)
        tagsBuffer.append(MULTIPLE_VALUES_TEXT);
    else {
        Iterator i = tagsList.iterator();
        while (i.hasNext()) {
            String tag = (String) i.next();
            tagsBuffer.append(tag).append(", ");
        }
        if (tagsBuffer.length() > 1)
            tagsBuffer.delete(tagsBuffer.length() - 2, tagsBuffer.length() - 1);
    }
    initialTagText = tagsBuffer.toString();
    tags.setText(initialTagText);
    tags.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            if (MULTIPLE_VALUES_TEXT.equals(tags.getText()))
                tags.setText("");
        }
    });

    generalTable.setWidget(2, 1, tags);
    generalTable.getFlexCellFormatter().setStyleName(0, 0, "props-labels");
    generalTable.getFlexCellFormatter().setColSpan(0, 0, 2);
    generalTable.getFlexCellFormatter().setStyleName(1, 0, "props-labels");
    generalTable.getFlexCellFormatter().setStyleName(2, 0, "props-labels");
    generalTable.getFlexCellFormatter().setStyleName(0, 1, "props-values");
    generalTable.getFlexCellFormatter().setStyleName(1, 1, "props-values");
    generalTable.getFlexCellFormatter().setStyleName(2, 1, "props-values");
    generalTable.setCellSpacing(4);

    // Create the 'OK' button, along with a listener that hides the dialog
    // when the button is clicked.
    final Button ok = new Button("OK", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            accept();
            closeDialog();
        }
    });
    buttons.add(ok);
    buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
    // Create the 'Cancel' button, along with a listener that hides the
    // dialog when the button is clicked.
    final Button cancel = new Button("Cancel", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            closeDialog();
        }
    });
    buttons.add(cancel);
    buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
    buttons.setSpacing(8);
    buttons.addStyleName("gss-TabPanelBottom");

    generalPanel.add(generalTable);

    // Asynchronously retrieve the tags defined by this user.
    DeferredCommand.addCommand(new Command() {

        @Override
        public void execute() {
            updateTags();
        }
    });

    DisclosurePanel allTags = new DisclosurePanel("All tags");
    allTagsContent = new FlowPanel();
    allTags.setContent(allTagsContent);
    generalPanel.add(allTags);
    generalPanel.setSpacing(4);

    vPanel.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
    vPanel.setSpacing(8);
    vPanel.addStyleName("gss-TabPanelBottom");
    vPanel.add(new Label("Versioned"));

    vPanel.add(versionedCheck);
    verPanel.add(vPanel);
    outer.add(inner);
    outer.add(buttons);
    outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
    outer.addStyleName("gss-TabPanelBottom");

    focusPanel.setFocus(true);
    setWidget(outer);
}

---

From source file:org.gss_project.gss.web.client.PermissionsAddDialog.java

License:Open Source License

public PermissionsAddDialog(List<GroupResource> _groups, PermissionsList _permList, boolean _userAdd) {
    groups = _groups;//from w  ww  .j a va  2s.  c  o m
    userAdd = _userAdd;
    permList = _permList;

    groupBox.getElement().setId("addPermission.dropDown");

    suggestBox.getElement().setId("addPermission.textBox");

    read.getElement().setId("addPermission.read");

    write.getElement().setId("addPermission.write");

    modifyACL.getElement().setId("addpermission.modify");

    for (GroupResource group : _groups)
        groupBox.addItem(group.getName(), group.getName());
    final VerticalPanel panel = new VerticalPanel();
    final HorizontalPanel buttons = new HorizontalPanel();
    setWidget(panel);
    final FlexTable permTable = new FlexTable();
    permTable.setText(0, 0, "Users/Groups");
    permTable.setText(0, 1, "Read");
    permTable.setText(0, 2, "Write");
    permTable.setText(0, 3, "Modify Access");
    permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
    permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
    permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
    permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
    if (userAdd) {
        suggestBox.getTextBox().addFocusHandler(new FocusHandler() {

            @Override
            public void onFocus(FocusEvent event) {
                if (selectedUser != null && selectedUser.endsWith("@"))
                    updateSuggestions();

            }
        });

        suggestBox.addKeyUpHandler(new KeyUpHandler() {

            @Override
            public void onKeyUp(KeyUpEvent event) {
                // Ignore the arrow keys.
                int keyCode = event.getNativeKeyCode();
                if (keyCode == KeyCodes.KEY_UP || keyCode == KeyCodes.KEY_DOWN || keyCode == KeyCodes.KEY_LEFT
                        || keyCode == KeyCodes.KEY_RIGHT)
                    return;
                if (keyCode == KeyCodes.KEY_ESCAPE) {
                    suggestBox.hideSuggestionList();
                    return;
                }
                String text = suggestBox.getText().trim();
                // Avoid useless queries for keystrokes that do not modify
                // the text.
                if (text.equals(selectedUser))
                    return;
                selectedUser = text;
                // Go to the server only if the user typed the @ character.
                if (selectedUser.endsWith("@"))
                    updateSuggestions();
            }
        });
        permTable.setWidget(1, 0, suggestBox);
    } else
        permTable.setWidget(1, 0, groupBox);
    permTable.setWidget(1, 1, read);
    permTable.setWidget(1, 2, write);
    permTable.setWidget(1, 3, modifyACL);

    permTable.getFlexCellFormatter().setStyleName(1, 0, "props-labels");
    permTable.getFlexCellFormatter().setHorizontalAlignment(1, 1, HasHorizontalAlignment.ALIGN_CENTER);
    permTable.getFlexCellFormatter().setHorizontalAlignment(1, 2, HasHorizontalAlignment.ALIGN_CENTER);
    permTable.getFlexCellFormatter().setHorizontalAlignment(1, 3, HasHorizontalAlignment.ALIGN_CENTER);
    panel.add(permTable);

    final Button ok = new Button("OK", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            addPermission();
            hide();
        }
    });
    ok.getElement().setId("addPermission.button.ok");
    buttons.add(ok);
    buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
    // Create the 'Cancel' button, along with a listener that hides the
    // dialog
    // when the button is clicked.
    final Button cancel = new Button("Cancel", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            hide();
        }
    });
    cancel.getElement().setId("addPermission.button.cancel");
    buttons.add(cancel);
    buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
    buttons.setSpacing(8);
    buttons.addStyleName("gss-TabPanelBottom");
    panel.add(buttons);
    panel.addStyleName("gss-TabPanelBottom");
}

---

From source file:org.gss_project.gss.web.client.UserAddDialog.java

License:Open Source License

/**
 * The widget's constructor.//from   ww  w  . j  av  a2s  . c  o m
 */
public UserAddDialog() {
    setAnimationEnabled(true);
    setText("Add User");
    VerticalPanel panel = new VerticalPanel();
    setWidget(panel);
    panel.addStyleName("gss-TabPanelBottom");
    userTable.addStyleName("gss-permList");
    userTable.setWidget(0, 0, new Label("Username:"));
    userTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
    suggestBox.getTextBox().addFocusHandler(new FocusHandler() {

        @Override
        public void onFocus(FocusEvent event) {
            if (selectedUser != null && selectedUser.endsWith("@"))
                updateSuggestions();
        }
    });

    suggestBox.addKeyUpHandler(new KeyUpHandler() {

        @Override
        public void onKeyUp(KeyUpEvent event) {
            // Ignore the arrow keys.
            int keyCode = event.getNativeKeyCode();
            if (keyCode == KeyCodes.KEY_UP || keyCode == KeyCodes.KEY_DOWN || keyCode == KeyCodes.KEY_LEFT
                    || keyCode == KeyCodes.KEY_RIGHT)
                return;
            if (keyCode == KeyCodes.KEY_ESCAPE) {
                suggestBox.hideSuggestionList();
                return;
            }
            String text = suggestBox.getText().trim();
            // Avoid useless queries for keystrokes that do not modify the
            // text.
            if (text.equals(selectedUser))
                return;
            selectedUser = text;
            // Go to the server only if the user typed the @ character.
            if (selectedUser.endsWith("@"))
                updateSuggestions();
        }
    });
    suggestBox.getElement().setId("addUser.textBox");
    userTable.setWidget(0, 1, suggestBox);
    panel.add(userTable);
    HorizontalPanel buttons = new HorizontalPanel();
    Button ok = new Button("OK", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            addUser();
            hide();
        }
    });
    ok.getElement().setId("addUser.button.ok");
    buttons.add(ok);
    buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
    // Create the 'Cancel' button, along with a listener that hides the
    // dialog when the button is clicked.
    Button cancel = new Button("Cancel", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            hide();
        }
    });
    cancel.getElement().setId("addUser.button.cancel");
    buttons.add(cancel);
    buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
    buttons.setSpacing(8);
    buttons.addStyleName("gss-TabPanelBottom");
    panel.add(buttons);
    panel.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
    panel.addStyleName("gss-DialogBox");
}

---

From source file:org.jboss.errai.demo.grocery.client.local.Form.java

License:Apache License

@PostConstruct
protected void setupSuggestions() {
    MultiWordSuggestOracle iso = (MultiWordSuggestOracle) name.getSuggestOracle();
    for (Item i : em.createNamedQuery("allItems", Item.class).getResultList()) {
        iso.add(i.getName());//from  w w  w. j a va 2s  . co m
    }

    MultiWordSuggestOracle dso = (MultiWordSuggestOracle) department.getSuggestOracle();
    for (Department d : em.createNamedQuery("allDepartments", Department.class).getResultList()) {
        dso.add(d.getName());
    }

    name.getValueBox().addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            if ("0px".equals(otherFields.getStyle().getHeight())) {
                new Animation() {
                    @Override
                    protected void onUpdate(double progress) {
                        otherFields.getStyle().setHeight(Window.getClientWidth() > 768 ? 215 : 145 * progress,
                                PX);
                    }
                }.run(1000);
            }
        }
    });
    hideOtherFields();
    handlerRegistration = addEnterKeyHandler();
}

---

From source file:org.jbpm.designer.client.popup.AssignmentListItemWidget.java

License:Apache License

/**
 * Initializes an 'EditableListBox' control, which is a combination of
 * a ValueListBox<String> and a TextBox used to set values via a drop-down
 * and also allow new custom values to be added and edited.
 *
 * @param listBox// w  w  w . j a va 2s. c  o  m
 * @param textBox
 * @param bQuoteStringValues
 * @param customPrompt
 * @param placeholder
 */
private void initEditableListBox(final ValueListBox<String> listBox, final TextBox textBox,
        final boolean bQuoteStringValues, final String customPrompt, final String placeholder) {
    textBox.setVisible(false);
    textBox.setPlaceholder(placeholder);
    listBox.addValueChangeHandler(new ValueChangeHandler<String>() {
        @Override
        public void onValueChange(ValueChangeEvent<String> valueChangeEvent) {
            String newValue = valueChangeEvent.getValue();
            if (customPrompt.equals(newValue)) {
                // "Custom..." selected, show textBox with empty value
                setModelValue(listBox, "");
                setModelValue(textBox, "");
                listBox.setVisible(false);
                textBox.setVisible(true);
                textBox.setFocus(true);
            } else if (newValue.startsWith("*")) {
                // Not a valid value
                setModelValue(listBox, "");
                setModelValue(textBox, "");
            } else if (newValue.startsWith(EDIT_PREFIX)) {
                // "Edit <value> ..." selected, show textBox with appropriate value
                String quotedValue = getModelValue(listBox);
                String unquotedValue = AssignmentData.createUnquotedConstant(quotedValue);
                setModelValue(textBox, unquotedValue);
                listBox.setVisible(false);
                textBox.setVisible(true);
                textBox.setFocus(true);
            } else if (getListBoxValues(listBox).isCustomValue(newValue)) {
                // A Custom value has been selected
                String textValue = newValue;
                if (bQuoteStringValues) {
                    String unquotedValue = AssignmentData.createUnquotedConstant(newValue);
                    textValue = unquotedValue;
                }
                setModelValue(listBox, newValue);
                setModelValue(textBox, textValue);
            } else if (newValue != null) {
                // A non-custom value has been selected
                setModelValue(listBox, newValue);
                setModelValue(textBox, "");
            }
            updateListBoxValues(listBox);
        }
    });

    listBox.addDomHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent focusEvent) {
            updateListBoxValues(listBox);
        }
    }, FocusEvent.getType());

    textBox.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent focusEvent) {
            setCurrentTextValue(textBox, textBox.getValue());
        }
    });

    textBox.addBlurHandler(new BlurHandler() {
        @Override
        public void onBlur(BlurEvent blurEvent) {
            // Update ListBoxValues and set model values when textBox loses focus
            String value = textBox.getValue();
            if (value != null) {
                if (!bQuoteStringValues) {
                    value = value.trim();
                }
                if (!value.isEmpty()) {
                    String oldValue = getCurrentTextValue(textBox);
                    addValueToListBoxValues(listBox, value, oldValue, bQuoteStringValues);
                }
                if (bQuoteStringValues) {
                    value = AssignmentData.createQuotedConstant(value);
                }
                // Set the value even if it's ""
                setModelValue(textBox, value);
                setModelValue(listBox, value);
                setCurrentTextValue(textBox, value);
            }
            textBox.setVisible(false);
            listBox.setVisible(true);
        }
    });
}

---

From source file:org.jbpm.designer.client.util.ComboBoxViewImpl.java

License:Apache License

@Override
public void init(final ComboBoxView.ComboBoxPresenter presenter,
        final ComboBoxView.ModelPresenter modelPresenter, final ValueListBox<String> listBox,
        final TextBox textBox, final String placeholder) {
    this.presenter = presenter;
    this.modelPresenter = modelPresenter;
    this.listBox = listBox;
    this.textBox = textBox;
    this.textBox.setPlaceholder(placeholder);

    textBox.setVisible(false);/*from  w ww  .  ja  va  2 s  .c om*/
    listBox.addValueChangeHandler(new ValueChangeHandler<String>() {
        @Override
        public void onValueChange(ValueChangeEvent<String> valueChangeEvent) {
            presenter.listBoxValueChanged(valueChangeEvent.getValue());
        }
    });

    // call  listBoxGotFocus in MouseDownHandler because IE11 doesn't handle FocusHandler correctly
    // this works for all browsers
    listBox.addDomHandler(new MouseDownHandler() {
        @Override
        public void onMouseDown(MouseDownEvent mouseDownEvent) {
            if (!listBoxHasFocus) {
                listBoxHasFocus = true;
                listBoxGotFocus();
            }
        }
    }, MouseDownEvent.getType());

    listBox.addDomHandler(new BlurHandler() {
        @Override
        public void onBlur(BlurEvent blurEvent) {
            listBoxHasFocus = false;
        }
    }, BlurEvent.getType());

    textBox.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent focusEvent) {
            textBoxGotFocus();
        }
    });

    textBox.addBlurHandler(new BlurHandler() {
        @Override
        public void onBlur(BlurEvent blurEvent) {
            // Update ListBoxValues and set model values when textBox loses focus
            textBoxLostFocus();
        }
    });
}

---

From source file:org.jbpm.form.builder.ng.model.client.form.editors.HeaderInplaceEditor.java

License:Apache License

public HeaderInplaceEditor(final HeaderFormItem item) {
    final HorizontalPanel editPanel = new HorizontalPanel();
    editPanel.setBorderWidth(1);/* ww  w . j a  va 2s. c  om*/
    textBox.setValue(item.getHeader().getText());
    textBox.addBlurHandler(new BlurHandler() {
        @Override
        public void onBlur(BlurEvent event) {
            wrapper.setValue(false);
            item.reset();
        }
    });
    textBox.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            wrapper.setValue(true);
        }
    });
    textBox.addChangeHandler(new ChangeHandler() {
        @Override
        public void onChange(ChangeEvent event) {
            Map<String, Object> dataSnapshot = new HashMap<String, Object>();
            dataSnapshot.put("item", item);
            dataSnapshot.put("oldValue", item.getHeader().getText());
            dataSnapshot.put("newValue", textBox.getValue());
            bus.fireEvent(new UndoableEvent(dataSnapshot, new UndoableHandler() {
                @Override
                public void undoAction(UndoableEvent event) {
                    HeaderFormItem myItem = (HeaderFormItem) event.getData("item");
                    String value = (String) event.getData("oldValue");
                    myItem.setContent("<h1>" + value + "</h1>");
                }

                @Override
                public void onEvent(UndoableEvent event) {
                }

                @Override
                public void doAction(UndoableEvent event) {
                    HeaderFormItem myItem = (HeaderFormItem) event.getData("item");
                    String value = (String) event.getData("newValue");
                    myItem.setContent("<h1>" + value + "</h1>");
                }
            }));
            item.reset();
        }
    });
    editPanel.add(textBox);
    textBox.setWidth(item.getHeader().getOffsetWidth() + "px");
    textBox.setFocus(true);
    add(editPanel);
}

---

From source file:org.jbpm.form.builder.ng.model.client.form.editors.HTMLFormItemEditor.java

License:Apache License

public HTMLFormItemEditor(HTMLFormItem formItem) {
    this.formItem = formItem;
    HorizontalPanel buttonPanel = new HorizontalPanel();
    editorArea.setValue(this.formItem.getHtmlContent());
    editorArea.addBlurHandler(new BlurHandler() {
        @Override//from www. ja  v a  2  s  . c  om
        public void onBlur(BlurEvent event) {
            wrapper.setValue(false);
        }
    });
    editorArea.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            wrapper.setValue(true);
        }
    });
    editorArea.unsinkEvents(Event.ONKEYPRESS | Event.ONMOUSEUP | Event.ONDBLCLICK | Event.ONCONTEXTMENU);
    this.htmlButton.setEnabled(false);
    buttonPanel.add(createTextButton());
    buttonPanel.add(createHtmlButton());
    editorArea.setCharacterWidth(50);
    editorArea.setVisibleLines(5);
    panel.add(buttonPanel);
    panel.add(editorArea);
    panel.add(createDoneButton());
    add(panel);
}

---

From source file:org.jbpm.form.builder.ng.model.client.form.editors.LabelInplaceEditor.java

License:Apache License

public LabelInplaceEditor(final LabelFormItem item) {
    final HorizontalPanel editPanel = new HorizontalPanel();
    editPanel.setBorderWidth(1);//from  w  w  w.j  a va 2s.c  o  m
    textBox.setValue(item.getLabel().getText());
    textBox.addBlurHandler(new BlurHandler() {
        @Override
        public void onBlur(BlurEvent event) {
            wrapper.setValue(false);
            item.reset();
        }
    });
    textBox.addFocusHandler(new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            wrapper.setValue(true);
        }
    });
    textBox.addChangeHandler(new ChangeHandler() {
        @Override
        public void onChange(ChangeEvent event) {
            Map<String, Object> dataSnapshot = new HashMap<String, Object>();
            dataSnapshot.put("item", item);
            dataSnapshot.put("oldValue", item.getLabel().getText());
            dataSnapshot.put("newValue", textBox.getValue());
            bus.fireEvent(new UndoableEvent(dataSnapshot, new UndoableHandler() {
                @Override
                public void undoAction(UndoableEvent event) {
                    LabelFormItem myItem = (LabelFormItem) event.getData("item");
                    String value = (String) event.getData("oldValue");
                    myItem.getLabel().setText(value);
                }

                @Override
                public void onEvent(UndoableEvent event) {
                }

                @Override
                public void doAction(UndoableEvent event) {
                    LabelFormItem myItem = (LabelFormItem) event.getData("item");
                    String value = (String) event.getData("newValue");
                    myItem.getLabel().setText(value);
                }
            }));
            item.reset();
        }
    });
    editPanel.add(textBox);
    textBox.setWidth(item.getLabel().getOffsetWidth() + "px");
    textBox.setFocus(true);
    add(editPanel);
}

---

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