com.edgenius.wiki.gwt.client.widgets.PaletteDialog.java Source code

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Here is the source code for com.edgenius.wiki.gwt.client.widgets.PaletteDialog.java

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/* 
 * =============================================================
 * Copyright (C) 2007-2011 Edgenius (http://www.edgenius.com)
 * =============================================================
 * License Information: http://www.edgenius.com/licensing/edgenius/2.0/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2.0
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * http://www.gnu.org/licenses/gpl.txt
 *  
 * ****************************************************************
 */
package com.edgenius.wiki.gwt.client.widgets;

import java.util.ArrayList;
import java.util.List;

import com.edgenius.wiki.gwt.client.Css;
import com.edgenius.wiki.gwt.client.GwtClientUtils;
import com.edgenius.wiki.gwt.client.i18n.Msg;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.Frame;

/**
 * @author Dapeng.Ni
 */
public class PaletteDialog extends DialogBox implements ClickHandler {

    private Frame palette = new Frame(
            GwtClientUtils.getBaseUrl() + "widgets/tiny_mce/themes/advanced/color_picker.htm");

    private Button okBtn = new Button(Msg.consts.ok());
    private Button cancelBtn = new Button(Msg.consts.cancel());
    private List<PaletteListener> listeners = new ArrayList<PaletteListener>();
    private String receiverID;

    public PaletteDialog(String receiverID, final String initColor) {
        this.receiverID = receiverID;
        this.setText(Msg.consts.palette());
        this.addStyleName(Css.PALETTE_DIALOG);
        DOM.setElementAttribute(palette.getElement(), "frameborder", "0");
        DOM.setElementAttribute(palette.getElement(), "scrolling", "no");

        DOM.setElementProperty(palette.getElement(), "id", "pickerFrame");
        ButtonBar btnPanel = getButtonBar();
        btnPanel.add(okBtn);
        btnPanel.add(cancelBtn);

        cancelBtn.addClickHandler(this);
        okBtn.addClickHandler(this);
        this.setWidget(palette);
        bindJsMethod(initColor);
    }

    public void addPaletteListener(PaletteListener listener) {
        listeners.add(listener);
    }

    public void onClick(ClickEvent event) {
        if (event.getSource() == okBtn) {
            submitPicker(this);
        }

        this.hidebox();
    }

    private native void bindJsMethod(String initColor)/*-{
                                                      $wnd.gwtGetPaletteInitColor = function(){
                                                      return initColor;
                                                      }
                                                      }-*/;

    private native void submitPicker(PaletteDialog palette)/*-{
                                                           var color = $wnd.document.getElementById('pickerFrame').contentWindow.document.getElementById("color").value;
                                                           palette.@com.edgenius.wiki.gwt.client.widgets.PaletteDialog::colorChanged(Ljava/lang/String;)(color);
                                                               
                                                           }-*/;

    //call by JS
    private void colorChanged(String color) {
        for (PaletteListener lis : listeners) {
            lis.selectedColor(receiverID, color);
        }
    }
}