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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.client.ui;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.NodeList;
import com.google.gwt.dom.client.PreElement;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HTML;
import com.vaadin.terminal.gwt.client.ApplicationConnection;
import com.vaadin.terminal.gwt.client.BrowserInfo;
import com.vaadin.terminal.gwt.client.Paintable;
import com.vaadin.terminal.gwt.client.UIDL;
import com.vaadin.terminal.gwt.client.Util;
import com.vaadin.terminal.gwt.client.VTooltip;
public class VLabel extends HTML implements Paintable {
public static final String CLASSNAME = "v-label";
private static final String CLASSNAME_UNDEFINED_WIDTH = "v-label-undef-w";
private ApplicationConnection client;
private int verticalPaddingBorder = 0;
private int horizontalPaddingBorder = 0;
public VLabel() {
super();
setStyleName(CLASSNAME);
sinkEvents(VTooltip.TOOLTIP_EVENTS);
}
public VLabel(String text) {
super(text);
setStyleName(CLASSNAME);
sinkEvents(VTooltip.TOOLTIP_EVENTS);
}
@Override
public void onBrowserEvent(Event event) {
super.onBrowserEvent(event);
if (event.getTypeInt() == Event.ONLOAD) {
Util.notifyParentOfSizeChange(this, true);
event.cancelBubble(true);
return;
}
if (client != null) {
client.handleTooltipEvent(event, this);
}
}
public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
if (client.updateComponent(this, uidl, true)) {
return;
}
this.client = client;
boolean sinkOnloads = false;
final String mode = uidl.getStringAttribute("mode");
if (mode == null || "text".equals(mode)) {
setText(uidl.getChildString(0));
} else if ("pre".equals(mode)) {
PreElement preElement = Document.get().createPreElement();
preElement.setInnerText(uidl.getChildUIDL(0).getChildString(0));
// clear existing content
setHTML("");
// add preformatted text to dom
getElement().appendChild(preElement);
} else if ("uidl".equals(mode)) {
setHTML(uidl.getChildrenAsXML());
} else if ("xhtml".equals(mode)) {
UIDL content = uidl.getChildUIDL(0).getChildUIDL(0);
if (content.getChildCount() > 0) {
setHTML(content.getChildString(0));
} else {
setHTML("");
}
sinkOnloads = true;
} else if ("xml".equals(mode)) {
setHTML(uidl.getChildUIDL(0).getChildString(0));
} else if ("raw".equals(mode)) {
setHTML(uidl.getChildUIDL(0).getChildString(0));
sinkOnloads = true;
} else {
setText("");
}
if (sinkOnloads) {
sinkOnloadsForContainedImgs();
}
}
private void sinkOnloadsForContainedImgs() {
NodeList<Element> images = getElement().getElementsByTagName("img");
for (int i = 0; i < images.getLength(); i++) {
Element img = images.getItem(i);
DOM.sinkEvents((com.google.gwt.user.client.Element) img,
Event.ONLOAD);
}
}
@Override
public void setHeight(String height) {
verticalPaddingBorder = Util.setHeightExcludingPaddingAndBorder(this,
height, verticalPaddingBorder);
}
@Override
public void setWidth(String width) {
horizontalPaddingBorder = Util.setWidthExcludingPaddingAndBorder(this,
width, horizontalPaddingBorder);
if (width == null || width.equals("")) {
setStyleName(getElement(), CLASSNAME_UNDEFINED_WIDTH, true);
} else {
setStyleName(getElement(), CLASSNAME_UNDEFINED_WIDTH, false);
}
}
@Override
public void setText(String text) {
if (BrowserInfo.get().isIE() && BrowserInfo.get().getIEVersion() < 9) {
// #3983 - IE6-IE8 incorrectly replaces \n with <br> so we do the
// escaping manually and set as HTML
super.setHTML(Util.escapeHTML(text));
} else {
super.setText(text);
}
}
}
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