001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.acacia.client.widgets;
029
030import org.opencms.acacia.client.css.I_CmsWidgetsLayoutBundle;
031import org.opencms.gwt.client.ui.input.CmsColorPicker;
032import org.opencms.gwt.client.util.CmsDomUtil;
033
034import com.google.gwt.dom.client.Element;
035import com.google.gwt.event.dom.client.FocusEvent;
036import com.google.gwt.event.dom.client.FocusHandler;
037import com.google.gwt.event.logical.shared.ValueChangeEvent;
038import com.google.gwt.event.logical.shared.ValueChangeHandler;
039import com.google.gwt.event.shared.HandlerRegistration;
040import com.google.gwt.user.client.ui.Composite;
041import com.google.gwt.user.client.ui.SimplePanel;
042
043/**
044 * Provides a DHTML calendar widget, for use on a widget dialog.<p>
045 *
046 * */
047public class CmsColorpickerWidget extends Composite implements I_CmsEditWidget {
048
049    /** Value of the activation. */
050    private boolean m_active = true;
051
052    /** The global select box. */
053    private CmsColorPicker m_colorPicker = new CmsColorPicker();
054
055    /**The main panel. */
056    private SimplePanel m_panel = new SimplePanel();
057
058    /**
059     * Constructs an CmsComboWidget with the in XSD schema declared configuration.<p>
060     * @param config The configuration string given from OpenCms XSD.
061     */
062    public CmsColorpickerWidget(String config) {
063
064        // All composites must call initWidget() in their constructors.
065        m_panel.add(m_colorPicker);
066        initWidget(m_panel);
067        m_colorPicker.getColorfield().addStyleName(I_CmsWidgetsLayoutBundle.INSTANCE.widgetCss().colorPicker());
068        m_colorPicker.getTextboxPanel().addStyleName(I_CmsWidgetsLayoutBundle.INSTANCE.widgetCss().colorPickerValue());
069        m_colorPicker.addValueChangeHandler(new ValueChangeHandler<String>() {
070
071            public void onValueChange(ValueChangeEvent<String> event) {
072
073                fireChangeEvent();
074
075            }
076
077        });
078        m_colorPicker.getColorValueBox().addFocusHandler(new FocusHandler() {
079
080            public void onFocus(FocusEvent event) {
081
082                CmsDomUtil.fireFocusEvent(CmsColorpickerWidget.this);
083            }
084        });
085    }
086
087    /**
088     * @see com.google.gwt.event.dom.client.HasFocusHandlers#addFocusHandler(com.google.gwt.event.dom.client.FocusHandler)
089     */
090    public HandlerRegistration addFocusHandler(FocusHandler handler) {
091
092        return addDomHandler(handler, FocusEvent.getType());
093    }
094
095    /**
096     * @see com.google.gwt.event.logical.shared.HasValueChangeHandlers#addValueChangeHandler(com.google.gwt.event.logical.shared.ValueChangeHandler)
097     */
098    public HandlerRegistration addValueChangeHandler(ValueChangeHandler<String> handler) {
099
100        return addHandler(handler, ValueChangeEvent.getType());
101    }
102
103    /**
104     * Represents a value change event.<p>
105     *
106     */
107    public void fireChangeEvent() {
108
109        if (m_colorPicker.getFormValueAsString() != null) {
110            ValueChangeEvent.fire(this, m_colorPicker.getFormValueAsString());
111        }
112
113    }
114
115    /**
116     * @see com.google.gwt.user.client.ui.HasValue#getValue()
117     */
118    public String getValue() {
119
120        return m_colorPicker.getFormValueAsString();
121    }
122
123    /**
124     * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#isActive()
125     */
126    public boolean isActive() {
127
128        return m_active;
129    }
130
131    /**
132     * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#onAttachWidget()
133     */
134    public void onAttachWidget() {
135
136        super.onAttach();
137    }
138
139    /**
140     * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#owns(com.google.gwt.dom.client.Element)
141     */
142    public boolean owns(Element element) {
143
144        // TODO implement this in case we want the delete behavior for optional fields
145        return false;
146
147    }
148
149    /**
150     * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setActive(boolean)
151     */
152    public void setActive(boolean active) {
153
154        if (m_active == active) {
155            return;
156        }
157
158        m_active = active;
159        if (m_active) {
160            m_colorPicker.getElement().removeClassName(
161                org.opencms.acacia.client.css.I_CmsLayoutBundle.INSTANCE.form().inActive());
162        } else {
163            m_colorPicker.getElement().addClassName(
164                org.opencms.acacia.client.css.I_CmsLayoutBundle.INSTANCE.form().inActive());
165            m_colorPicker.getColorfield().getElement().getStyle().setBackgroundColor("#FFFFFF");
166        }
167        if (active) {
168            fireChangeEvent();
169        }
170
171    }
172
173    /**
174     * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setName(java.lang.String)
175     */
176    public void setName(String name) {
177
178        m_colorPicker.setName(name);
179
180    }
181
182    /**
183     * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object)
184     */
185    public void setValue(String value) {
186
187        setValue(value, false);
188
189    }
190
191    /**
192     * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object, boolean)
193     */
194    public void setValue(String value, boolean fireEvents) {
195
196        m_colorPicker.setFormValueAsString(value);
197        if (fireEvents) {
198            fireChangeEvent();
199        }
200
201    }
202}