com.gwtmobile.ui.client.widgets.PanelBase.java Source code

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Here is the source code for com.gwtmobile.ui.client.widgets.PanelBase.java

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/*
 * Copyright (c) 2011 Zhihua (Dennis) Jiang
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.gwtmobile.ui.client.widgets;

import java.beans.Beans;

import com.google.gwt.user.client.ui.Widget;
import com.gwtmobile.ui.client.utils.Utils;
import com.google.gwt.user.client.ui.Label;

public class PanelBase extends com.google.gwt.user.client.ui.FlowPanel implements IsGwtMobilePanel {

    private IsGwtMobileWidgetHelper _widgetHelper = new IsGwtMobileWidgetHelper();

    @Override
    public void onLoad() {
        super.onLoad();
        _widgetHelper.CheckInitialLoad(this);
    }

    @Override
    public void onInitialLoad() {
    }

    @Override
    public void onTransitionEnd(TransitionDirection direction) {
    }

    @Override
    public void setSecondaryStyle(String style) {
        _widgetHelper.setSecondaryStyle(this, style);
    }

    @Override
    public void add(Widget w) {
        if (isDesignTimeEmptyLabel(w)) {
            Label label = (Label) w;
            String designTimeMessage = getDesignTimeMessage();
            if (designTimeMessage == null) {
                label.setText("Empty " + Utils.getSimpleName(this.getClass()));
            } else {
                label.setText("Empty " + Utils.getSimpleName(this.getClass()) + ". " + designTimeMessage);
            }
        }
        super.add(w);
    }

    public boolean isDesignTimeEmptyLabel(Widget w) {
        return Beans.isDesignTime() && (w instanceof Label) && ((Label) w).getText().startsWith("Empty ");
    }

    protected String getDesignTimeMessage() {
        return "Add widgets to the panel.";
    };
}