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package net.wotonomy.web;
import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSData;
import net.wotonomy.foundation.NSDictionary;
/**
* WOImage renders a dynamically generated IMG tag. The URL for the image SRC
* can be static, or it can be generated dynamically to return a NSData object
* (with a mime-type) or even return the contents of a file (not implemented
* yet).
*
* Bindings are:
* <UL>
* <LI>src: A static URL for the image source.</li>
* <li>data: A NSData object with the image content. Must be used with
* mimeType.</li>
* <li>mimeType: The MIME type for the image data. Can be used with filename or
* data bindings.</li>
* <li>filename: The path to a file containing an image.</li>
* <li>framework: The optional framework from whence the image should be
* retrieved (used in conjunction with filename).</li>
*
* @author ezamudio@nasoft.com
* @author $Author: cgruber $
* @version $Revision: 905 $
*/
public class WOImage extends WODynamicElement {
protected String src;
protected String filename;
protected String framework;
protected NSData data;
protected String mimeType;
protected WOImage() {
super();
}
public WOImage(String aName, NSDictionary aMap, WOElement template) {
super(aName, aMap, template);
}
public void setSrc(String value) {
src = value;
}
public String src() {
return src;
}
public void setFilename(String value) {
filename = value;
}
public String filename() {
return filename;
}
public void setFramework(String value) {
framework = value;
}
public String framework() {
return framework;
}
public void setData(NSData value) {
data = value;
}
public NSData data() {
return data;
}
public void setMimeType(String value) {
mimeType = value;
}
public String mimeType() {
return mimeType();
}
public String sourceURL(WOContext c) {
if (associations.objectForKey("src") != null)
return (String) valueForProperty("src", c.component());
if (associations.objectForKey("data") != null) {
return c.componentActionURL();
}
if (associations.objectForKey("filename") != null) {
WOComponent component = c.component();
String framework = stringForProperty("framework", component);
String filename = stringForProperty("filename", component);
if (filename != null && framework == null) {
if (filename.startsWith("/")) {
int i = filename.lastIndexOf("/");
if (i > 0) {
framework = filename.substring(0, i);
if (i < filename.length()) {
filename = filename.substring(i + 1);
}
}
} else {
// just until we figure out how we're handling bundles/localization
framework = component.frameworkName();
if (framework != null) {
framework = framework + '/' + component.name() + ".wo";
} else {
framework = '/' + component.name() + ".wo";
}
}
}
return WOApplication.application().resourceManager().urlForResourceNamed(filename, framework,
c.request().browserLanguages(), c.request());
}
return "NO SOURCE";
}
public void appendToResponse(WOResponse r, WOContext c) {
r.appendContentString("<IMG SRC=\"");
r.appendContentString(sourceURL(c));
r.appendContentString("\"");
r.appendContentString(additionalHTMLProperties(c.component(),
new NSArray(new Object[] { "src", "filename", "framework", "data", "mimeType" })));
r.appendContentString(">");
}
public WOActionResults invokeAction(WORequest r, WOContext c) {
if (c.senderID().equals(c.elementID())) {
Object data = valueForProperty("data", c.component());
if (data instanceof byte[])
data = new NSData((byte[]) data);
if (data instanceof NSData) {
String mt = stringForProperty("mimeType", c.component());
if (mt == null)
throw new IllegalArgumentException("WOImage: No mimeType specified for data.");
WOResponse img = new WOResponse();
img.setContent((NSData) data);
img.setHeader(mt, "content-type");
return img;
} else if (filename() != null) {
// will this thing use frameworks, or regular JAR files with resources?
// mp: both/either, depending on which resource manager implementation
}
}
return null;
}
}
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