com.sun.webui.jsf.renderkit.html.AnchorRenderer Maven / Gradle / Ivy
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package com.sun.webui.jsf.renderkit.html;
import com.sun.faces.annotation.Renderer;
import com.sun.webui.jsf.component.Anchor;
import com.sun.webui.jsf.util.RenderingUtilities;
import com.sun.webui.jsf.theme.ThemeImages;
import com.sun.webui.jsf.component.Icon;
import com.sun.webui.jsf.util.ClientSniffer;
import java.beans.Beans;
import java.io.IOException;
import java.net.URL;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
/**
* This class is responsible for rendering the {@link Anchor} component for the
* HTML Render Kit.
The {@link Anchor} component can be used as an anchor
*/
@Renderer(@Renderer.Renders(componentFamily = "com.sun.webui.jsf.Anchor"))
public class AnchorRenderer extends AbstractRenderer {
// -------------------------------------------------------- Renderer Methods
/**
* Render the start of an anchor (Anchor) tag.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* start should be rendered
* @exception IOException if an input/output error occurs
*/
/*
* Id of the transparent image to be rendered for IE browsers
*/
private static String ANCHOR_IMAGE = "_img"; //NOI18N
@Override
protected void renderStart(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
Anchor anchor = (Anchor) component;
writer.startElement("a", anchor); //NOI18N
}
/**
*
Render the attributes for an anchor tag. The onclick attribute will contain
* extra javascript that will appropriately submit the form if the URL field is
* not set.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* attributes should be rendered
* @exception IOException if an input/output error occurs
*/
@Override
protected void renderAttributes(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
// Set up local variables we will need
Anchor anchor = (Anchor) component;
String id = anchor.getId();
// Design time only behavior - display an icon so that this
// component has a visual appearance in the IDE
if (Beans.isDesignTime()) {
writer.startElement("img", anchor); // NOI18N
try {
URL url = this.getClass().getResource("/com/sun/webui/jsf/design/resources/AnchorIcon.gif"); // NOI18N
writer.writeURIAttribute("src", url, null); // NOI18N
} catch (Exception e) {
System.out.println("Error getting anchor icon: " + e);
e.printStackTrace(System.out);
}
writer.endElement("img"); // NOI18N
}
// Render core and pass through attributes as necessary
// NOTE - id is being rendered "as is" instead of the normal convention
// that we render the client id.
writer.writeAttribute("id", id, "id"); //NOI8N
String style = anchor.getStyle();
String styleClass = anchor.getStyleClass();
if (styleClass != null) {
RenderingUtilities.renderStyleClass(context, writer, component, null);
}
if (style != null) {
writer.writeAttribute("style", style, null);
}
// XHTML requires that this been the same as the id and it may
// removed.
writer.writeAttribute("name", id, null); //NO18N
}
/**
* Close off the anchor tag.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* end should be rendered
* @exception IOException if an input/output error occurs
*/
@Override
protected void renderEnd(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
ClientSniffer sniffer = ClientSniffer.getInstance(context);
if (sniffer.isIe6up() || sniffer.isIe7() || sniffer.isIe7up()) {
Icon icon = new Icon();
icon.setIcon(ThemeImages.DOT);
icon.setId(component.getId() + ANCHOR_IMAGE);
RenderingUtilities.renderComponent(icon, context);
}
// End the appropriate element
Anchor anchor = (Anchor) component;
writer.endElement("a"); //NOI18N
}
// --------------------------------------------------------- Private Methods
}