How can I display all possible values in a SuggestBox - gwt

I would like to display all possible values in a SuggestBox.
Naturally, I have the following code (settingName is a SuggestBox)
settingName.getTextBox().addFocusHandler(new FocusHandler() {
#Override
public void onFocus(FocusEvent event) {
settingName.showSuggestionList();
}
});
Unfortunately, the suggestbox displays anything. Of course, the settingName is associated to an oracle with several values inside it.
Am I crazy ?
According to the documentation :
public void showSuggestionList()
Show the current list of suggestions.

You need to set the defaults to show by suggestOracle.setDefaultSuggestionsFromText(..)

When showing the list, the SuggestBox will ask the oracle for values to show. If the text box is empty, then requestDefaultSuggestions will be called (which by default calls requestSuggestions).

Related

Example showing Multi Edit in Nattable

I have a requirement wherein on a single click in the cell, normal editing must be possible and on double clicking in the cell a dialog should open for editing the cell. The two are possible individually. I see a method "boolean supportMultiEdit(IConfigRegistry configRegistry, List configLabels)" but there is no example to show the working. Has anyone used it or can show it's configuration.
Multi edit means it is possible to edit multiple cells at once. This is of course done in an editor, as it makes no sense to perform multi edit inline. You should rather have a look at openInline(IConfigRegistry, List<String>) or even better the EditConfigAttributes#OPEN_IN_DIALOG to solve what you are looking for.
But you are actually seeking for a way to handle opening an editor differently on different UI interactions. So you need to register the corresponding UI bindings. This is already discussed in the NatTable Forum.
And the EditorExample shows quite a lot of possible configuration options available for editing. And almost every editable example shows multi editing capabilities. You simply need to select multiple cells you want to edit and then start typing or pressing F2.
The following code would do the trick with a configuration based on a label that is added in the UI binding action:
public class OpenEditorConfiguration extends AbstractRegistryConfiguration {
#Override
public void configureRegistry(IConfigRegistry configRegistry) {
configRegistry.registerConfigAttribute(
EditConfigAttributes.OPEN_IN_DIALOG,
Boolean.TRUE,
DisplayMode.EDIT,
"open_in_dialog");
}
#Override
public void configureUiBindings(UiBindingRegistry uiBindingRegistry) {
uiBindingRegistry.registerDoubleClickBinding(
new CellEditorMouseEventMatcher(GridRegion.BODY),
new IMouseAction() {
#Override
public void run(NatTable natTable, MouseEvent event) {
int columnPosition = natTable.getColumnPositionByX(event.x);
int rowPosition = natTable.getRowPositionByY(event.y);
ILayerCell cell = natTable.getCellByPosition(columnPosition, rowPosition);
cell.getConfigLabels().add("open_in_dialog");
natTable.doCommand(new EditCellCommand(
natTable,
natTable.getConfigRegistry(),
cell));
}
});
}
}

Is it possible/how to display a message on the FeedbackPanel more than one time

I have a org.apache.wicket.markup.html.panel.FeedbackPanel in my panelA class. The feedback panel is instantiated in a panelA constructor with one message to display -> feedbackPanel.info("displayFirstTime"). I am navigating to a new page and later to the previous panelA with a command
target.getPage().get(BasePage.CONTENT_PANEL_ID).replaceWith(panelA);
but the message "displayFirstTime" won't be displayed on the feedback panel again.
I have made it with overriding a panel onBeforeRender method
#Override
public void onBeforeRender() {
super.onBeforeRender();
if (again_displayCondition) {
this.info("displayFirstTime");
}
}
but it's not a clean solution.
Is it possible or how to make it, that when moving to a panelA page for the 2nd time the feedback message will be also displayed ?
Wicket uses application.getApplicationSettings().getFeedbackMessageCleanupFilter() to delete the feedback messages at the end of the request cycle.
By default it will delete all already rendered messages.
You can setup a custom cleanup filter that may leave some of the messages, e.g. if they implement some interface. For example:
component.info(new DoNotDeleteMe("The actual message here."));
and your filter will have to check:
#Override
public boolean accept(FeedbackMessage message)
{
if (message.getMessage() instanceOf DoNotDeleteMe) {
return false;
}
return message.isRendered();
}
Make sure you implement DoNotDeleteMe#toString() so that it renders properly. Or you will have to use a custom FeedbackPanel too.
DoNotDeleteMe must implement java.io.Serializable!

JavaFX8 Is there a way to select text in DatePicker in code without clicking on it?

Is there a way in JavaFX8 to select date (as text) in DatePicker from Java code? I want to activate a control with DatePicker in such a way, a user could edit a date without using a mouse.
The similar problem was described here Is there a way to select a text field in code without clicking on it (javafx)?, but the problem was about TextField.
I've tried the solution given in the above question:
Platform.runLater(new Runnable() {
#Override
public void run() {
datePicker.requestFocus();
}
});
In result, the datePicker control is focused, but the text is not selected - typing a new date causes appending new characters to the default one.
Any suggestions?
Thanks in advance.
The problem has been solved according to kleopatra's hint in the following way:
Platform.runLater(new Runnable() {
#Override
public void run() {
datePicker.requestFocus();
datePicker.getEditor().selectAll();
}
});
Thanks for that.
Add the following code after calling stage.show();:
datePicker.getEditor().requestFocus();
datePicker.getEditor().positionCaret(0);
datePicker.getEditor().selectNextWord();

How to hide suggestions in GWT SuggestBox?

I am using GWT 2.4. I have a Suggestbox and I have a requirement to hide the suggestion list under certain cases. The context is as below.
After user selects a suggestion from suggestion list, I am populating two other text box fields, with values corresponding to the selection. For example, suppose the suggestbox contains user-names, and user selects a user-name from suggestions, then other two fields, say user address and email are populated in two other text boxes. These two fields are read only now. Then user clicks on an 'Edit' button. Now the user can edit either user- name ( ie edit in suggestion box), user address and email. It doesn't make sense to show the suggestions again when the user is editing the user-name, since the user has already selected the user and decided to edit it. In a nutshell my SuggesBox should behave as a normal text box. I tried following code, (I know hideSuggestionList() is deprecated) but its not working.
display.getSuggestBox().hideSuggestionList();
Reading the javadoc for hideSuggestionList() it is said that, "Deprecated. use DefaultSuggestionDisplay.hideSuggestions() instead". I don't know how to use DefaultSuggestionDisplay, and I'm using SuggestBox with 'MultiWordSuggestOracle'.
Thanks for helping me out!!
What you can do is simply swap the SuggestionBox with a normal TextBox when the user clicks edit and back when edit is closed. Also because if you would hide the suggestions list, it still queried from the server. By swapping the widget you don't have to care about side effects. SuggestionBox itself uses also a TextBox and thus for the user it's not visible the widget has changed.
If you don't use your own SuggestionDisplay, then this should Just Work™:
((DefaultSuggestionDisplay) suggestBox.getSuggestionDisplay()).hideSuggestions();
Here is the Solution
My Entry Point Class
public class SuggestionEntryPoint implements EntryPoint {
#Override
public void onModuleLoad() {
SuggestBoxWidget suggestBoxWidget = new SuggestBoxWidget();
RootPanel rootPanel = RootPanel.get();
suggestBoxWidget.createOracle();
suggestBoxWidget.createWidgetAndShow(rootPanel);
rootPanel.add(suggestBoxWidget);
DOM.getElementById("loader").removeFromParent();
}
}
And here is my Widget
public class SuggestBoxWidget extends Composite {
private TextBox textSuggestBox = new TextBox();
private SuggestBox suggestBox = null;
DefaultSuggestionDisplay suggestionDisplay = new DefaultSuggestionDisplay();
MultiWordSuggestOracle suggestOracle = new MultiWordSuggestOracle();
private static SuggestBoxWidgetUiBinder uiBinder = GWT
.create(SuggestBoxWidgetUiBinder.class);
interface SuggestBoxWidgetUiBinder extends
UiBinder<Widget, SuggestBoxWidget> {
}
public SuggestBoxWidget() {
initWidget(uiBinder.createAndBindUi(this));
}
public void registerEvents(){
suggestBox.addKeyUpHandler(new KeyUpHandler() {
#Override
public void onKeyUp(KeyUpEvent event) {
if(suggestBox.getText().equalsIgnoreCase("1")){
suggestionDisplay.hideSuggestions();
}
}
});
}
public void createWidgetAndShow(HasWidgets container){
suggestBox = new SuggestBox(suggestOracle,textSuggestBox,suggestionDisplay);
container.clear();
container.add(suggestBox);
registerEvents();
}
public void createOracle(){
for(int i=1;i<=100;i++){
suggestOracle.add(i+"");
}
}
}
Actually you have to create a SuggestBox with 3 Parameters to the Constructor.

setting a default text to a GWT ListBox

I am trying to create a ListBox using GWT. I am using UiBinder to create the field.
I would like to set a default text on the list box and when a user clicks on the box, it should show me the list items. Once again, if user has not selected any option, it should show me the default text again.
Any way to do this either using Uibinder or some ListBox methods?
If I understand correctly you want a value to show but when the user clicks on the list it disappears and shows you the list items?
As far as I know there is no option to that natively.
What you can do is add the first item to hold your default value.
You can do this grammatically by using addItem in code or using:
<g:Listbox>
<g:item value="-1">Default text</g:item>
</g:Listbox>
works with gwt 2.1+
The value can still be selected.
You can choose to ignore it or add an attribute "disabled" with value "disabled" to the option element:
listbox.getElement().getFirstChildElement().setAttribute("disabled" ,"disabled" )
hope it helps a bit :)
You can also use a renderer to control what is shown if 'Null' is selected.
(Inspired by: How do I add items to GWT ListBox in Uibinder .ui.xml template ?)
private class SimpleRenderer implements Renderer<T>{
private String emptyValue = "Select a value";
#Override
public String render(T val) {
if(val == null) {
return emptyValue;
}
return val.toString();
}
#Override
public void render(T val, Appendable appendable) throws IOException {
appendable.append(render(val));
}
public void setEmptyValue(String emptyValue) {
this.emptyValue = emptyValue;
}
}