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/*
* Copyright 2011, The gwtquery team.
*
* 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.google.gwt.query.client.plugins;
import java.util.ArrayList;
import java.util.List;
import com.google.gwt.dom.client.Element;
import com.google.gwt.query.client.GQuery;
import com.google.gwt.query.client.plugins.widgets.ButtonWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.HtmlPanelWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.LabelWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.PasswordTextBoxWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.TextAreaWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.TextBoxWidgetFactory;
import com.google.gwt.query.client.plugins.widgets.WidgetFactory;
import com.google.gwt.query.client.plugins.widgets.WidgetInitializer;
import com.google.gwt.query.client.plugins.widgets.WidgetsUtils;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.TextArea;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
/**
* Widgets plugin for Gwt Query. Be careful, this plugin is still experimental.
* The api can change in next releases.
*/
public class Widgets extends QueuePlugin {
public static final Class Widgets = Widgets.class;
// list of html tags that cannot be replaced by a widget, in order to avoid to
// break the html structure
private static final String[] excludedTags = {
"html", "body", "head", "tr", "thead", "tfoot", "options", "script",
"noscript", "style", "title"};
static {
GQuery.registerPlugin(Widgets.class, new Plugin() {
public Widgets init(GQuery gq) {
return new Widgets(gq);
}
});
}
protected Widgets(GQuery gq) {
super(gq);
}
/**
* Try to create a widget using the given factory and the given options for
* each element of the query. Returns a new gquery set of elements with the
* new widgets created.
*/
public Widgets widgets(WidgetFactory factory,
WidgetInitializer initializers) {
List result = new ArrayList();
for (Element e : elements()) {
W w = widget(e, factory, initializers);
if (w != null) {
result.add(w.getElement());
}
}
return $(result).as(Widgets);
}
protected boolean isWidgetCreationAuthorizedFrom(Element e) {
return !WidgetsUtils.matchesTags(e, excludedTags);
}
/**
* Create and return a widget using the given factory and the given options
*/
protected W widget(Element e, WidgetFactory factory,
WidgetInitializer initializer) {
if (!isWidgetCreationAuthorizedFrom(e)) {
return null;
}
W widget = factory.create(e);
if (initializer != null) {
initializer.initialize(widget, e);
}
return widget;
}
/**
* Create and return a widget using the given factory and the given options
*/
protected W widget(WidgetFactory factory,
WidgetInitializer initializers) {
return widget(get(0), factory, initializers);
}
/**
* Create a {@link Button} widget for each selected element.
*/
public Widgets button() {
return widgets(new ButtonWidgetFactory(), null);
}
/**
* Create a {@link Button} widget for each selected element. The
* initializers will be called on each new {@link Button} created
* by passing them in parameter.
*
*/
public Widgets button(WidgetInitializer
