protected void renderImage(
UIXRenderingContext context, UINode node, ImageProviderResponse response, String mapName)
throws IOException {
// We assume that we have an image to render
assert (response != null);
boolean disabled = isDisabled(context, node);
boolean hasMap = (response.getMapAreas() != null);
Object shortDesc = getShortDesc(context, node);
boolean hasLink = !disabled && !hasMap;
Object destination = hasLink ? getDestination(context, node) : null;
renderImage(context, node, response, hasMap, mapName, shortDesc, destination);
}
protected void renderImage(
UIXRenderingContext context,
UINode node,
ImageProviderResponse response,
boolean hasMap,
String mapName,
Object shortDesc,
Object destination)
throws IOException {
assert node != null;
boolean hasLink = (destination != null);
Object longDesc = getLongDesc(context, node);
String imageStyle = getImageStyle(context, node);
String imageStyleClass = getImageStyleClass(context, node);
ResponseWriter writer = context.getResponseWriter();
UIComponent component = (node == null) ? null : node.getUIComponent();
if (hasLink) {
writer.startElement("a", component);
renderEncodedActionURI(context, "href", destination);
renderAttribute(context, node, "target", TARGET_FRAME_ATTR);
// Don't render access key on Netscape... Netscape doesn't
// support access keys - if this ever changes, it would
// be confusing if we rendered the accessKey attr without
// also underlining the access key in the corresponding text.
if (!isNetscape(context)) {
renderButtonAccessKey(context, node);
}
// If we have a link, we render the standard attributes on
// the link instead of on the image
renderAttributes(context, node);
}
writer.startElement("img", component);
// Write out all of the standard attrs
if (!hasLink) renderAttributes(context, node);
// Write out the image url
writeCacheImageURI(context, "src", response.getImageURI());
// Write out the description attrs.
renderAltAndTooltipForImage(context, shortDesc);
renderAttribute(context, "longdesc", longDesc);
// Null out the border
renderAttribute(context, "border", "0");
// Render alignment. Is this necessary?
renderHAlign(context, node);
// This is to address bug #2047577
// Instead of adding an attribute to control placement of the button,
// we just force it to middle (which is what everybody wants anyway).
// We have to make sure we don't put the align attribute in twice.
// We allow the hAlign attribute to take precedence.
if (node.getAttributeValue(context, H_ALIGN_ATTR) == null) {
Object valign = getVAlign(context, node);
if (valign != null) renderAttribute(context, "align", valign);
}
// Render the width/height
int width = response.getWidth();
int height = response.getHeight();
if (width != ImageProviderResponse.UNKNOWN_SIZE)
renderAttribute(context, "width", IntegerUtils.getString(width));
if (height != ImageProviderResponse.UNKNOWN_SIZE)
renderAttribute(context, "height", IntegerUtils.getString(height));
// The image map
if (hasMap) writer.writeAttribute("usemap", "#" + mapName, null);
if (imageStyle != null) renderAttribute(context, "style", imageStyle);
if (imageStyleClass != null) renderStyleClassAttribute(context, imageStyleClass);
writer.endElement("img");
if (hasLink) writer.endElement("a");
}