/**
* Sencha GXT 3.0.0 - Sencha for GWT
* Copyright(c) 2007-2012, Sencha, Inc.
* licensing@sencha.com
*
* http://www.sencha.com/products/gxt/license/
*/
package com.sencha.gxt.theme.base.client.field;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.CssResource;
import com.google.gwt.safecss.shared.SafeStyles;
import com.google.gwt.safecss.shared.SafeStylesUtils;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.sencha.gxt.core.client.XTemplates;
import com.sencha.gxt.core.client.dom.XElement;
import com.sencha.gxt.core.client.resources.StyleInjectorHelper;
import com.sencha.gxt.widget.core.client.form.FieldLabel.FieldLabelAppearance;
import com.sencha.gxt.widget.core.client.form.FieldLabel.FieldLabelOptions;
import com.sencha.gxt.widget.core.client.form.FormPanel.LabelAlign;
public class FieldLabelDefaultAppearance implements FieldLabelAppearance {
public interface FieldLabelResources extends ClientBundle {
@Source("FieldLabel.css")
Style css();
}
public interface Style extends CssResource {
String clearLeft();
String fieldElement();
String fieldItem();
String fieldItemLabelTop();
String fieldLabel();
String hideLabel();
}
public interface FieldLabelTemplate extends XTemplates {
@XTemplate(source = "FieldLabel.html")
SafeHtml render(String id, Style style, SafeStyles fieldLabelStyles, SafeStyles fieldElementStyles);
}
private FieldLabelTemplate template;
private Style style;
public FieldLabelDefaultAppearance() {
this(GWT.<FieldLabelResources> create(FieldLabelResources.class), GWT.<FieldLabelTemplate> create(FieldLabelTemplate.class));
}
public FieldLabelDefaultAppearance(FieldLabelResources resources, FieldLabelTemplate template) {
this.template = template;
this.style = resources.css();
StyleInjectorHelper.ensureInjected(this.style, true);
}
@Override
public void clearLabelFor(XElement parent) {
getLabelElement(parent).removeAttribute("for");
}
@Override
public XElement getChildElementWrapper(XElement parent) {
// second child of parent
XElement childElementWrapper = XElement.as(parent.getChild(1));
assert childElementWrapper.is("div." + style.fieldElement());
return childElementWrapper;
}
public XElement getLabelElement(XElement parent) {
XElement labelElement = XElement.as(parent.getFirstChildElement());
assert labelElement.is("label." + style.fieldLabel());
return labelElement;
}
@Override
public String getLabelHtml(XElement parent) {
return getLabelElement(parent).getInnerHTML();
}
@Override
public String getLabelText(XElement parent) {
return getLabelElement(parent).getInnerText();
}
public void onUpdateOptions(XElement parent, FieldLabelOptions options) {
LabelAlign labelAlign = options.getLabelAlign();
XElement fieldElement = getChildElementWrapper(parent);
XElement labelElement = getLabelElement(parent);
// Adjust for label content, label separator
if (options.isHtmlContent()) {
labelElement.setInnerHTML(options.getContent() + options.getLabelSeparator());
} else {
labelElement.setInnerText(options.getContent() + options.getLabelSeparator());
}
// Adjust for label alignment
if (labelAlign == LabelAlign.TOP) {
parent.addClassName(style.fieldItemLabelTop());
} else {
parent.removeClassName(style.fieldItemLabelTop());
}
// Adjust for label width
if (labelAlign == LabelAlign.TOP) {
labelElement.getStyle().setProperty("width", "auto");
fieldElement.getStyle().setPaddingLeft(0, Unit.PX);
} else {
int pad = options.getLabelPad();
if (pad == 0) pad = 5;
labelElement.getStyle().setWidth(options.getLabelWidth(), Unit.PX);
fieldElement.getStyle().setPaddingLeft(options.getLabelWidth() + pad, Unit.PX);
}
}
@Override
public void render(SafeHtmlBuilder sb, String id, FieldLabelOptions options) {
int labelWidth = options.getLabelWidth();
LabelAlign align = options.getLabelAlign();
int pad = options.getLabelPad();
if (pad == 0) pad = 5;
String fieldLabelWidth = align == LabelAlign.TOP ? "auto" : (labelWidth + "px");
SafeStyles fieldLabelStyles = SafeStylesUtils.fromTrustedString("width:" + fieldLabelWidth + ";");
String fieldElementPadding = align == LabelAlign.TOP ? "0" : (labelWidth + pad + "px");
SafeStyles fieldElementStyles = SafeStylesUtils.fromTrustedString("padding-left:" + fieldElementPadding + ";");
sb.append(template.render(id, style, fieldLabelStyles, fieldElementStyles));
}
@Override
public void setLabelFor(XElement parent, String id) {
getLabelElement(parent).setAttribute("for", id + "-input");
}
}