Example usage for com.google.gwt.user.client.ui KeyboardListener KeyboardListener

List of usage examples for com.google.gwt.user.client.ui KeyboardListener KeyboardListener

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Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui KeyboardListener KeyboardListener.

Prototype

KeyboardListener

Source Link

Usage

From source file:ca.upei.ic.timetable.client.FindCourseView.java

License:Apache License

public FindCourseView(FindCourseViewController controller) {
    controller_ = controller;/* ww  w  .  ja v a  2s  .  com*/

    // set up the dialog box
    dialogBox_ = new DialogBox(false, true); // autohide = false, modal = true
    dialogBox_.setAnimationEnabled(true);
    dialogBox_.setText("Find Courses...");

    // i have a horizontal panel
    HorizontalPanel filterPanel = new HorizontalPanel();
    // i have a level flex table
    levelTable_ = controller_.getLevelModel().getWidget();
    departmentTable_ = controller_.getDepartmentModel().getWidget();
    semesterTable_ = controller_.getSemesterModel().getWidget();
    startTimeWidget_ = controller_.getStartTimeModel().getWidget();

    // button panel
    HorizontalPanel buttonPanel = new HorizontalPanel();
    buttonPanel.setHorizontalAlignment(HasAlignment.ALIGN_RIGHT);

    // i have an OK button
    final Button okButton = new Button("Search");
    okButton.addClickListener(new ClickListener() {

        public void onClick(Widget sender) {
            // search and close the dialog
            controller_.search();
            hide();
        }

    });

    okButton.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ENTER) {
                okButton.click();
            }
        }

    });

    final Button cancelButton = new Button("Cancel");
    cancelButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            hide();
        }
    });

    cancelButton.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ESCAPE)
                cancelButton.click();
        }

    });

    SimplePanel empty = new SimplePanel();
    empty.setWidth("230px");
    buttonPanel.add(empty);
    buttonPanel.add(cancelButton);
    buttonPanel.add(okButton);
    buttonPanel.setSpacing(5);
    buttonPanel.setWidth("485px");

    // add the panel to the dialog box
    dialogBox_.add(PanelUtils.verticalPanel(PanelUtils.horizontalPanel(
            PanelUtils.verticalPanel(PanelUtils.scrollPanel(levelTable_, 250, 180),
                    PanelUtils.scrollPanel(semesterTable_, 250, 120),
                    PanelUtils.scrollPanel(startTimeWidget_, 250, 30)),
            PanelUtils.scrollPanel(departmentTable_, 250, 320)), buttonPanel));
    dialogBox_.setPopupPosition(240, 0);
}

From source file:ca.upei.ic.timetable.client.MessageView.java

License:Apache License

public MessageView(MessageViewController controller) {
    controller_ = controller;/*www. j av a  2  s  .c  o m*/
    dialogBox_ = new DialogBox(true, true);
    dialogBox_.setText("Messages");
    dialogBox_.setAnimationEnabled(true);
    dialogBox_.hide();
    // XXX a hack to make sure the dialog display top most
    dialogBox_.getElement().getStyle().setProperty("z-index", "100");

    ScrollPanel scrolled = new ScrollPanel();
    scrolled.setPixelSize(350, 250);

    panel_ = new VerticalPanel();
    panel_.setWidth("232px");

    scrolled.add(panel_);
    Button closeButton = new Button("Close");
    closeButton.addClickListener(new ClickListener() {

        public void onClick(Widget sender) {
            dialogBox_.hide();
        }

    });

    closeButton.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ESCAPE)
                dialogBox_.hide();
        }

        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
        }

    });

    Button clearButton = new Button("Clear");
    clearButton.addClickListener(new ClickListener() {

        public void onClick(Widget sender) {
            clearMessage();
        }

    });

    dialogBox_.setWidget(
            PanelUtils.verticalPanel(scrolled, PanelUtils.horizontalPanel(closeButton, clearButton)));
}

From source file:cc.alcina.framework.gwt.client.gwittir.widget.PasswordTextBox.java

License:Apache License

/** Creates a new instance of TextBox */
@SuppressWarnings("unchecked")
public PasswordTextBox(final boolean updateOnKeypress) {
    final PasswordTextBox instance = this;
    old = base.getText();/*w w w  .  j  av  a 2s . c  o m*/
    this.setComparator(SimpleComparator.INSTANCE);
    if (updateOnKeypress) {
        this.addKeyboardListener(new KeyboardListener() {
            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                changes.firePropertyChange("value", old, getValue());
                old = (String) getValue();
            }

            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            }
        });
    } else {
        this.addKeyboardListener(new KeyboardListener() {
            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                if (keyCode == KeyboardListener.KEY_ENTER) {
                    setFocus(false);
                    setFocus(true);
                }
            }

            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            }
        });
    }
    this.base.addChangeListener(new ChangeListener() {
        public void onChange(Widget sender) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    super.initWidget(this.base);
}

From source file:cc.alcina.framework.gwt.client.gwittir.widget.TextArea.java

License:Apache License

/** Creates a new instance of TextBox */
public TextArea(final boolean updateOnKeypress) {
    final TextArea instance = this;
    old = base.getText();//from   ww w.  j  a v a  2  s .c  o  m
    this.setComparator(SimpleComparator.INSTANCE);
    if (updateOnKeypress) {
        this.addKeyboardListener(new KeyboardListener() {
            @Override
            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            @Override
            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                changes.firePropertyChange("value", old, getValue());
                old = (String) getValue();
            }

            @Override
            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            }
        });
    } else {
    }
    this.base.addValueChangeHandler(new ValueChangeHandler<String>() {
        @Override
        public void onValueChange(ValueChangeEvent<String> event) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    this.base.addClickHandler(new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    this.base.addChangeListener(new ChangeListener() {
        @Override
        public void onChange(Widget sender) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    super.initWidget(this.base);
}

From source file:cc.alcina.framework.gwt.client.gwittir.widget.TextBox.java

License:Open Source License

/** Creates a new instance of TextBox */
public TextBox(final boolean updateOnKeypress) {
    final TextBox instance = this;
    old = base.getText();/*w  w w  . ja  v  a  2 s  . c o  m*/
    if (updateOnKeypress) {
        this.addKeyboardListener(new KeyboardListener() {
            boolean scheduled = false;

            @Override
            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            @Override
            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                refresh();
            }

            @Override
            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
                refresh();
            }

            private void refresh() {
                if (!scheduled) {
                    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
                        @Override
                        public void execute() {
                            changes.firePropertyChange("value", old, getValue());
                            old = (String) getValue();
                            scheduled = false;
                        }
                    });
                    scheduled = true;
                }
            }
        });
    } else {
        this.addKeyboardListener(new KeyboardListener() {
            @Override
            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            @Override
            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                if (keyCode == KeyCodes.KEY_ENTER) {
                    setFocus(false);
                    setFocus(true);
                }
            }

            @Override
            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            }
        });
    }
    this.base.addChangeListener(new ChangeListener() {
        @Override
        public void onChange(Widget sender) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    this.base.addValueChangeHandler(new ValueChangeHandler<String>() {
        @Override
        public void onValueChange(ValueChangeEvent<String> event) {
            changes.firePropertyChange("value", old, getValue());
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    this.base.addClickHandler(new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            if (old == null && getValue() == null) {
                // don't want a non-change change fired here (invalid
                // validation)
            } else {
                changes.firePropertyChange("value", old, getValue());
            }
            old = (String) getValue();
            changeListeners.fireChange(instance);
        }
    });
    super.initWidget(this.base);
}

From source file:ch.heftix.mailxel.client.OrgTextArea.java

License:Open Source License

public OrgTextArea() {

    KeyboardListener kl = new KeyboardListener() {

        Duration sinceEscapePressed = null;

        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ESCAPE) {
                sinceEscapePressed = new Duration();
            }//from w w w  .  j av  a  2 s.  c om
        }

        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
        }

        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
            if ('q' == keyCode) {
                // System.out.println(sinceEscapePressed.elapsedMillis());
                if (null != sinceEscapePressed && (sinceEscapePressed.elapsedMillis() < 300)) {
                    // format region
                    TextArea ta = (TextArea) sender;
                    String text = ta.getText();
                    int pos = ta.getCursorPos();
                    int len = ta.getSelectionLength();
                    String replacement = om.prefixSelection(text, "> ", pos, len);
                    ta.setText(replacement);
                    cancelKey();
                }
            }
        }

    };

    addKeyboardListener(kl);

}

From source file:com.anzsoft.client.ui.UserIndicator.java

License:Open Source License

public UserIndicator(final String nick) {
    createStatusMenu();/*from  www  . ja v a 2s .  c om*/
    setWidth("100%");
    setCellPadding(0);
    setCellSpacing(0);
    setStyleName("indicator");
    FlexCellFormatter formatter = getFlexCellFormatter();

    // Setup the links cell
    /*
    linksPanel = new HorizontalPanel();
    setWidget(0, 0, linksPanel);
    formatter.setStyleName(0, 0, "indicator-links");
    formatter.setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_RIGHT);
    formatter.setColSpan(0, 0, 2);
    */

    // Setup the title cell
    setTitleWidget(null);
    formatter.setStyleName(0, 0, "indicator-title");

    getRowFormatter().setVerticalAlign(0, HasVerticalAlignment.ALIGN_TOP);
    getRowFormatter().setVerticalAlign(1, HasVerticalAlignment.ALIGN_TOP);

    final ChatIcons icons = ChatIcons.App.getInstance();
    statusImg = new Image();
    statusImg.setWidth("16px");
    statusImg.setHeight("16px");
    icons.online().applyTo(statusImg);

    avatarImg = new Image("images/default_avatar.png");
    avatarImg.setWidth("32px");
    avatarImg.setHeight("32px");
    avatarImg.setStyleName("handler");
    avatarImg.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            JabberApp.instance().showInfoSelf();
        }

    });

    nickName = new Label(nick);
    nickName.setDirection(Direction.LTR);
    nickName.setWidth("100%");

    statusLabel = new Label();
    statusLabel.setStyleName("status_label");
    statusLabel.setWidth("100%");

    statusEditor = new TextBox();
    statusEditor.setVisible(false);
    statusEditor.setWidth("100%");

    statusButton = new Button();
    statusButton.setMenu(statusMenu);
    statusButton.setStyleName("Status-Menu-Button");

    //statusMenuLabel = new Label();
    //statusMenuLabel.setStyleName("status_menu_label");

    //addLink(new HTML("<a href=\"http://samespace.anzsoft.com\">SameSpace</a>"));
    // Add the title and some images to the title bar
    HorizontalPanel titlePanel = new HorizontalPanel();
    titlePanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
    titlePanel.setWidth("100%");
    titlePanel.setSpacing(3);

    VerticalPanel statusPanel = new VerticalPanel();
    statusPanel.setWidth("100%");
    statusPanel.add(nickName);

    HorizontalPanel hPanel = new HorizontalPanel();
    hPanel.setWidth("100%");
    hPanel.setSpacing(2);
    hPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_TOP);
    hPanel.add(statusLabel);
    hPanel.add(statusEditor);
    hPanel.add(statusButton);

    statusPanel.add(hPanel);

    titlePanel.add(statusImg);
    titlePanel.add(statusPanel);
    titlePanel.add(avatarImg);

    titlePanel.setCellWidth(statusImg, "20px");
    titlePanel.setCellWidth(statusPanel, "100%");
    titlePanel.setCellWidth(avatarImg, "32px");
    setTitleWidget(titlePanel);

    JabberApp.instance().getSession().getUser().addUserListener(new XmppUserListener() {
        public void onPresenceChanged(XmppPresence presence) {
            String show = new String("");
            PresenceShow presenceShow = presence.getShow();
            if (presenceShow != null)
                show = presenceShow.toString();
            String statusString = presence.getStatus();
            int priority = presence.getPriority();
            boolean avaiable = true;
            String type = presence.getType();
            if (type != null && !type.isEmpty()) {
                if (type.equalsIgnoreCase("unavailable"))
                    avaiable = false;
            }
            status = new XmppContactStatus(show, statusString, priority, avaiable);
            statusLabel.setText(status.status());
            iconFromStatus(status).applyTo(statusImg);
        }
    });

    statusLabel.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            statusLabel.setVisible(false);
            statusEditor.setVisible(true);
            statusEditor.setText(statusLabel.getText());
        }

    });

    statusEditor.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget sender, char keyCode, int modifiers) {

        }

        public void onKeyPress(Widget sender, char keyCode, int modifiers) {

        }

        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            if (keyCode == 13)
                doneChangeStatusString();
        }

    });

    statusEditor.addFocusListener(new FocusListener() {
        public void onFocus(Widget sender) {
        }

        public void onLostFocus(Widget sender) {
            doneChangeStatusString();
        }

    });

    XmppVCardFactory.instance().addVCardListener(new VCardListener() {
        public void onVCard(XmppID jid, XmppVCard vcard) {
            if (jid.toStringNoResource().equalsIgnoreCase(JabberApp.instance().getJid().toStringNoResource())) {
                if (!vcard.nickName().isEmpty())
                    nickName.setText(vcard.fullName());
                else if (!vcard.fullName().isEmpty())
                    nickName.setText(vcard.fullName());
                String photoData = vcard.photo();
                if (!photoData.isEmpty() && !GXT.isIE) {
                    ImageElement imgEl = avatarImg.getElement().cast();
                    imgEl.removeAttribute("src");
                    imgEl.setSrc("data:image;base64," + photoData);
                }

            }
        }

    });
}

From source file:com.google.mobile.trippy.web.client.view.SearchBarView.java

License:Apache License

public SearchBarView() {
    searchBox = new SuggestBox(mySuggestions);
    initWidget(uiBinder.createAndBindUi(this));
    searchBox.addSelectionHandler(new SelectionHandler<Suggestion>() {

        @Override/* w  w  w  .  ja va2 s  .  c  o m*/
        public void onSelection(SelectionEvent<Suggestion> event) {
            NativeEvent evt = Document.get().createClickEvent(1, 0, 0, 0, 0, false, false, false, false);
            searchButton.getElement().dispatchEvent(evt);
        }
    });

    searchPopUp.setWidget(this);
    searchPopUp.setGlassEnabled(true);
    searchPopUp.setStyleName(style.basePopup());
    final KeyboardListener onEnter = new KeyboardListener() {

        @Override
        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            //No-ops.
        }

        @Override
        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ENTER) {
                NativeEvent evt = Document.get().createClickEvent(1, 0, 0, 0, 0, false, false, false, false);
                searchButton.getElement().dispatchEvent(evt);
            }
        }

        @Override
        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            //No-ops.
        }
    };

    searchBox.addKeyboardListener(onEnter);
    defaultSearchText();
    loadSearchCategory();
}

From source file:com.google.mobile.trippy.web.client.view.TripListFilterView.java

License:Apache License

public TripListFilterView() {

    initWidget(uiBinder.createAndBindUi(this));
    searchPopUp.setGlassEnabled(true);//w  w  w .  j  a va  2  s  . c o m
    final KeyboardListener onEnter = new KeyboardListener() {

        @Override
        public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            //No-ops.
        }

        @Override
        public void onKeyPress(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ENTER) {
                NativeEvent evt = Document.get().createClickEvent(1, 0, 0, 0, 0, false, false, false, false);
                searchButton.getElement().dispatchEvent(evt);
            }
        }

        @Override
        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            //No-ops.
        }
    };
    searchBox.addKeyboardListener(onEnter);
    Window.addResizeHandler(new ResizeHandler() {

        @Override
        public void onResize(ResizeEvent event) {
            if (searchPopUp.isShowing()) {
                searchPopUp.center();
            }
        }
    });
}

From source file:com.sun.labs.aura.dbbrowser.client.query.SearchPanel.java

License:Open Source License

public SearchPanel(final TabbedQueryUI parent) {
    this.parent = parent;
    service = GWTMainEntryPoint.getDBService();
    setHeight("400px");
    setWidth("100%");
    setStylePrimaryName("db-SearchPanel");
    setSpacing(5);//from  ww w.  j  av  a2 s  .  c  om
    keySrchPanel.setSpacing(3);
    keySrchPanel.add(new Label("Item by key: "));
    keySrchPanel.add(itemKey);
    keySrchPanel.add(itemKeyBtn);

    itemKey.addKeyboardListener(new KeyboardListener() {
        public void onKeyDown(Widget arg0, char arg1, int arg2) {
        }

        public void onKeyPress(Widget w, char c, int mod) {
            if (c == KEY_ENTER) {
                itemKeyBtn.click();
            }
        }

        public void onKeyUp(Widget arg0, char arg1, int arg2) {
        }

    });

    // Listen for the button clicks
    itemKeyBtn.addClickListener(new ClickListener() {
        public void onClick(Widget w) {
            // Make remote call. Control flow will continue immediately and later
            // 'callback' will be invoked when the RPC completes.

            // Create an asynchronous callback to handle the result.
            final String srchStr = itemKey.getText();
            final AsyncCallback callback = new AsyncCallback() {
                public void onSuccess(Object result) {
                    if (result != null) {
                        parent.addResults("Key:" + srchStr, (ItemDesc[]) result);
                    } else {
                        parent.showError("Remote error!");
                    }
                }

                public void onFailure(Throwable caught) {
                    parent.showError(caught.getMessage());
                }
            };
            service.searchItemByKey(srchStr, callback);
        }
    });
    add(keySrchPanel);

    nameSrchPanel.setSpacing(3);
    nameSrchPanel.add(new Label("Item by name: "));
    nameSrchPanel.add(itemName);
    nameSrchPanel.add(itemNameBtn);

    itemName.addKeyboardListener(new KeyboardListener() {
        public void onKeyDown(Widget arg0, char arg1, int arg2) {
        }

        public void onKeyPress(Widget w, char c, int mod) {
            if (c == KEY_ENTER) {
                itemNameBtn.click();
            }
        }

        public void onKeyUp(Widget arg0, char arg1, int arg2) {
        }

    });

    // Listen for the button clicks
    itemNameBtn.addClickListener(new ClickListener() {
        public void onClick(Widget w) {
            // Make remote call. Control flow will continue immediately and later
            // 'callback' will be invoked when the RPC completes.

            // Create an asynchronous callback to handle the result.
            final String srchStr = itemName.getText();
            final AsyncCallback callback = new AsyncCallback() {
                public void onSuccess(Object result) {
                    if (result != null) {
                        parent.addResults("Name:" + srchStr, (ItemDesc[]) result);
                    } else {
                        parent.showError("Remote error!");
                    }
                }

                public void onFailure(Throwable caught) {
                    parent.showError(caught.getMessage());
                }
            };
            service.searchItemByName(srchStr, callback);
        }
    });
    add(nameSrchPanel);

    genSrchPanel.setSpacing(3);
    genSrchPanel.add(new Label("Freeform query: "));
    genSrchPanel.add(itemGen);
    genSrchPanel.add(itemGenBtn);

    itemGen.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget arg0, char arg1, int arg2) {
        }

        public void onKeyPress(Widget w, char c, int mod) {
            if (c == KEY_ENTER) {
                itemGenBtn.click();
            }
        }

        public void onKeyUp(Widget arg0, char arg1, int arg2) {
        }
    });

    // Listen for the button clicks
    itemGenBtn.addClickListener(new ClickListener() {

        public void onClick(Widget w) {
            // Make remote call. Control flow will continue immediately and later
            // 'callback' will be invoked when the RPC completes.

            // Create an asynchronous callback to handle the result.
            final String srchStr = itemGen.getText();
            final AsyncCallback callback = new AsyncCallback() {

                public void onSuccess(Object result) {
                    if (result != null) {
                        parent.addResults(srchStr, (ItemDesc[]) result);
                    } else {
                        parent.showError("Remote error!");
                    }
                }

                public void onFailure(Throwable caught) {
                    parent.showError(caught.getMessage());
                }
            };
            service.searchItemByGen(srchStr, callback);
        }
    });
    add(genSrchPanel);

    fsSrchPanel.setSpacing(3);
    fsSrchPanel.add(new Label("Find similar: "));
    fsSrchPanel.add(itemFS);
    fsSrchPanel.add(itemFSBtn);

    itemFS.addKeyboardListener(new KeyboardListener() {

        public void onKeyDown(Widget arg0, char arg1, int arg2) {
        }

        public void onKeyPress(Widget w, char c, int mod) {
            if (c == KEY_ENTER) {
                itemFSBtn.click();
            }
        }

        public void onKeyUp(Widget arg0, char arg1, int arg2) {
        }
    });

    // Listen for the button clicks
    itemFSBtn.addClickListener(new ClickListener() {

        public void onClick(Widget w) {
            // Make remote call. Control flow will continue immediately and later
            // 'callback' will be invoked when the RPC completes.

            // Create an asynchronous callback to handle the result.
            final String key = itemFS.getText();
            final AsyncCallback callback = new AsyncCallback() {

                public void onSuccess(Object result) {
                    if (result != null) {
                        parent.addResults(key, (ItemDesc[]) result);
                    } else {
                        parent.showError("Remote error!");
                    }
                }

                public void onFailure(Throwable caught) {
                    parent.showError(caught.getMessage());
                }
            };
            service.findSimilar(key, callback);
        }
    });
    add(fsSrchPanel);

    testBtn.addClickListener(new ClickListener() {
        public void onClick(Widget w) {
            final AsyncCallback callback = new AsyncCallback() {

                public void onSuccess(Object result) {
                    if (result != null) {
                        parent.showAttention((AttnDesc[]) result);
                    } else {
                        parent.showError("Remote error!");
                    }
                }

                public void onFailure(Throwable caught) {
                    parent.showError(caught.getMessage());
                }
            };
            service.doTest(callback);
        }
    });
    add(testBtn);
}