/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.client.ui.formlayout;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ConnectorHierarchyChangeEvent;
import com.vaadin.client.TooltipInfo;
import com.vaadin.client.Util;
import com.vaadin.client.communication.StateChangeEvent;
import com.vaadin.client.ui.AbstractFieldConnector;
import com.vaadin.client.ui.AbstractLayoutConnector;
import com.vaadin.client.ui.VFormLayout;
import com.vaadin.client.ui.VFormLayout.Caption;
import com.vaadin.client.ui.VFormLayout.ErrorFlag;
import com.vaadin.client.ui.VFormLayout.VFormLayoutTable;
import com.vaadin.shared.ui.Connect;
import com.vaadin.shared.ui.MarginInfo;
import com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutState;
import com.vaadin.ui.FormLayout;
@Connect(FormLayout.class)
public class FormLayoutConnector extends AbstractLayoutConnector {
@Override
public AbstractOrderedLayoutState getState() {
return (AbstractOrderedLayoutState) super.getState();
}
@Override
public void onStateChanged(StateChangeEvent stateChangeEvent) {
super.onStateChanged(stateChangeEvent);
VFormLayoutTable formLayoutTable = getWidget().table;
formLayoutTable.setMargins(new MarginInfo(getState().marginsBitmask));
formLayoutTable.setSpacing(getState().spacing);
}
@Override
public void onConnectorHierarchyChange(ConnectorHierarchyChangeEvent event) {
VFormLayout formLayout = getWidget();
VFormLayoutTable formLayoutTable = getWidget().table;
int childId = 0;
formLayoutTable.setRowCount(getChildComponents().size());
for (ComponentConnector child : getChildComponents()) {
Widget childWidget = child.getWidget();
Caption caption = formLayoutTable.getCaption(childWidget);
if (caption == null) {
caption = formLayout.new Caption(child);
caption.addClickHandler(formLayoutTable);
}
ErrorFlag error = formLayoutTable.getError(childWidget);
if (error == null) {
error = formLayout.new ErrorFlag(child);
}
formLayoutTable.setChild(childId, childWidget, caption, error);
childId++;
}
for (ComponentConnector oldChild : event.getOldChildren()) {
if (oldChild.getParent() == this) {
continue;
}
formLayoutTable.cleanReferences(oldChild.getWidget());
}
}
@Override
public void updateCaption(ComponentConnector component) {
getWidget().table.updateCaption(component.getWidget(),
component.getState(), component.isEnabled());
boolean hideErrors = false;
// FIXME This incorrectly depends on AbstractFieldConnector
if (component instanceof AbstractFieldConnector) {
hideErrors = ((AbstractFieldConnector) component).getState().hideErrors;
}
getWidget().table.updateError(component.getWidget(),
component.getState().errorMessage, hideErrors);
}
@Override
public VFormLayout getWidget() {
return (VFormLayout) super.getWidget();
}
@Override
public TooltipInfo getTooltipInfo(Element element) {
TooltipInfo info = null;
if (element != getWidget().getElement()) {
Object node = Util.findWidget(element, VFormLayout.Caption.class);
if (node != null) {
VFormLayout.Caption caption = (VFormLayout.Caption) node;
info = caption.getOwner().getTooltipInfo(element);
} else {
node = Util.findWidget(element, VFormLayout.ErrorFlag.class);
if (node != null) {
VFormLayout.ErrorFlag flag = (VFormLayout.ErrorFlag) node;
info = flag.getOwner().getTooltipInfo(element);
}
}
}
if (info == null) {
info = super.getTooltipInfo(element);
}
return info;
}
@Override
public boolean hasTooltip() {
/*
* Tooltips are fetched from child connectors -> there's no quick way of
* checking whether there might a tooltip hiding somewhere
*/
return true;
}
}