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- /*
- * Copyright 2000-2013 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(
- (com.google.gwt.user.client.Element) element,
- VFormLayout.Caption.class);
-
- if (node != null) {
- VFormLayout.Caption caption = (VFormLayout.Caption) node;
- info = caption.getOwner().getTooltipInfo(element);
- } else {
-
- node = Util.findWidget(
- (com.google.gwt.user.client.Element) 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;
- }
-
- }
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