com.moesol.gwt.maps.client.controls.SearchControl.java Source code

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Here is the source code for com.moesol.gwt.maps.client.controls.SearchControl.java

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/**
 * (c) Copyright, Moebius Solutions, Inc., 2012
 *
 *                        All Rights Reserved
 *
 * LICENSE: GPLv3
 */
package com.moesol.gwt.maps.client.controls;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.HasMouseOutHandlers;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.event.dom.client.MouseOverEvent;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;

/**
 * A general search control.
 */
public class SearchControl extends Composite implements MouseOutHandler, HasMouseOutHandlers {

    private static SearchControlUiBinder uiBinder = GWT.create(SearchControlUiBinder.class);

    interface SearchControlUiBinder extends UiBinder<Widget, SearchControl> {
    }

    @UiField
    TextBox input;

    @UiField
    HTML button;

    private boolean m_inputFocused;

    private FocusHandler m_inputFocusHandler = new FocusHandler() {
        @Override
        public void onFocus(FocusEvent event) {
            m_inputFocused = true;
        }
    };

    private BlurHandler m_inputBlurHandler = new BlurHandler() {
        @Override
        public void onBlur(BlurEvent event) {
            m_inputFocused = false;
            doMouseOut();
        }
    };

    public SearchControl() {
        initWidget(uiBinder.createAndBindUi(this));

        input.addFocusHandler(m_inputFocusHandler);
        input.addBlurHandler(m_inputBlurHandler);

        addMouseOutHandler(this);
    }

    @UiHandler("button")
    public void onButtonMouseDown(MouseDownEvent e) {
        //      Widget w = (Widget) e.getSource();
        //      w.addStyleName("map-SearchControlButtonMouseDown");

        fireSearchEvent();
    }

    private void fireSearchEvent() {
        String inputValue = input.getValue();
        if (inputValue != null && !inputValue.isEmpty()) {
            SearchEvent event = new SearchEvent(inputValue);
            fireEvent(event);
        }
    }

    //   @UiHandler("button")
    //   public void onButtonMouseUp(MouseUpEvent e) {
    //      Widget w = (Widget) e.getSource();
    //      w.removeStyleName("map-SearchControlButtonMouseDown");
    //   }

    @UiHandler("button")
    public void onButtonMouseOver(MouseOverEvent e) {
        Widget w = (Widget) e.getSource();
        w.addStyleName("map-SmallButtonMouseOver");
        input.getElement().getStyle().setDisplay(Display.BLOCK);
    }

    @UiHandler("input")
    public void onInputKeyboardEvent(KeyPressEvent e) {
        if (e.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) {
            fireSearchEvent();
            doMouseOut();
        }
    }

    @Override
    public void onMouseOut(MouseOutEvent event) {
        if (!m_inputFocused) {
            doMouseOut();
        }
    }

    private void doMouseOut() {
        button.removeStyleName("map-SmallButtonMouseOver");
        input.getElement().getStyle().setDisplay(Display.NONE);
    }

    @Override
    public HandlerRegistration addMouseOutHandler(MouseOutHandler handler) {
        return addDomHandler(handler, MouseOutEvent.getType());
    }

    /**
     * Add a SearchHandler for when the user submits a query.
     * @param handler The handler to add.
     * @return
     */
    public HandlerRegistration addSearchHandler(SearchHandler handler) {
        return addHandler(handler, SearchEvent.TYPE);
    }
}