/*
* Copyright 2007 Google Inc.
*
* 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.uibinder.elementparsers;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.uibinder.rebind.UiBinderWriter;
import com.google.gwt.uibinder.rebind.XMLElement;
import java.util.HashMap;
/**
* Parses {@link com.google.gwt.user.client.ui.DockPanel} widgets.
*/
public class DockPanelParser implements ElementParser {
private static final String TAG_DOCK = "Dock";
private static final HashMap<String, String> values =
new HashMap<String, String>();
static {
values.put("NORTH", "com.google.gwt.user.client.ui.DockPanel.NORTH");
values.put("SOUTH", "com.google.gwt.user.client.ui.DockPanel.SOUTH");
values.put("EAST", "com.google.gwt.user.client.ui.DockPanel.EAST");
values.put("WEST", "com.google.gwt.user.client.ui.DockPanel.WEST");
values.put("CENTER", "com.google.gwt.user.client.ui.DockPanel.CENTER");
values.put("LINE_START", "com.google.gwt.user.client.ui.DockPanel.LINE_START");
values.put("LINE_END", "com.google.gwt.user.client.ui.DockPanel.LINE_END");
}
public void parse(XMLElement elem, String fieldName, JClassType type,
UiBinderWriter writer) throws UnableToCompleteException {
writer.warn(elem,
"%1$s:%2$s is deprecated. Use the %1$s:DockLayoutPanel instead.",
elem.getPrefix(), elem.getLocalName());
// Parse children.
for (XMLElement child : elem.consumeChildElements()) {
// DockPanel can only contain Dock elements.
String ns = child.getNamespaceUri();
String tagName = child.getLocalName();
if (!ns.equals(elem.getNamespaceUri())) {
writer.die(elem, "Invalid DockPanel child namespace: " + ns);
}
if (!tagName.equals(TAG_DOCK)) {
writer.die(elem, "Invalid DockPanel child element: " + tagName);
}
// And they must specify a direction.
if (!child.hasAttribute("direction")) {
writer.die(elem, "Dock must specify the 'direction' attribute");
}
String value = child.consumeRawAttribute("direction");
String translated = values.get(value);
if (translated == null) {
writer.die(elem, "Invalid value: dockDirection='" + value + "'");
}
// And they can only have a single child widget.
XMLElement widget = child.consumeSingleChildElement();
String childFieldName = writer.parseElementToField(widget);
writer.addStatement("%1$s.add(%2$s, %3$s);", fieldName, childFieldName, translated);
// And they can optionally have a width.
if (child.hasAttribute("width")) {
writer.addStatement("%1$s.setCellWidth(%2$s, \"%3$s\");",
fieldName, childFieldName, child.consumeRawAttribute("width"));
}
// And they can optionally have a height.
if (child.hasAttribute("height")) {
writer.addStatement("%1$s.setCellHeight(%2$s, \"%3$s\");",
fieldName, childFieldName, child.consumeRawAttribute("height"));
}
// Parse the CellPanel-specific attributes on the Dock element.
CellPanelParser.parseCellAttributes(child, fieldName, childFieldName, writer);
}
}
}