Hi all,
I know I'm not addressing the exact issue, but just my two cents:
I needed to dynamically specify the src attribute of the img tag, and I
couldn't find great examples for doing this. And I adopted the following:
WebMarkupContainer flag = new WebMarkupContainer("flag-image-path");
flag.add(new SimpleAttributeModifier("src",
Application.get().getApplicationSettings().getContextPath() + File.separator +
"images/flags/" + entry.getPhoto().getLocation().getCountry().toLowerCase() +
".png"));
add(flag);
It worked but I wasn't deeply convinced with it. As I have to do this type of
stuff quite often in my code, and, moreover, I thought it wasn't the cleanest
way possible (I prefer to leave paths like 'images/flags' and '.png' in my HTML
page), I wrote a WebComponent that maybe some people could find useful.
Basically, it watchs the 'src' attribute, looking for the @DYNAMIC@ placeholder
that it inserts the specified value at java code level. I also added the
external flag, to point to dynamic external image sources.
I use it a lot, although I don't know if it has a good "wicket approach". Let
me know if anything's wrong with it. Here it goes:
public class DynamicPathImage extends WebComponent {
private static final long serialVersionUID = 1L;
private boolean externalSrc = false;
public DynamicPathImage(String id, String text) {
super(id, new Model(text));
}
@Override
public void onComponentTag(final ComponentTag tag) {
checkComponentTag(tag, "img");
String dynamicText = getModelObjectAsString();
super.onComponentTag(tag);
String src = (String) tag.getAttributes().getString("src");
if (src != null && src.contains("@DYNAMIC@")) {
src = src.replaceAll("@DYNAMIC@", dynamicText);
} else {
src = dynamicText;
}
if (isExternalSrc()) {
tag.put("src", src);
} else {
tag.put("src",
Application.get().getApplicationSettings().getContextPath() + File.separator +
src);
}
}
public boolean isExternalSrc() {
return externalSrc;
}
public void setExternalSrc(boolean externalSrc) {
this.externalSrc = externalSrc;
}
}
...and in my page I would call it like this:
// Set path for the country flag image
add(new DynamicPathImage("flag-image-path",
entry.getPhoto().getLocation().getCountry().toLowerCase()));
If I need to include a dynamic path not in my Wicket-enabled application:
// Set path for the main photo
DynamicPathImage photo = new DynamicPathImage("entry-image-path", PHOTO_DIR_URL
+ entry.getPhoto().getImagePath());
photo.setExternalSrc(true);
add(photo);
Thanks,
Francisco
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