The top_js.jspf dynamic include adds additional JavaScript files to the
theme’s head. For example, you can use this extension point to include a JS
library that you need present in the theme’s head:
/html/common/themes/top_js.jspf#resources
The example below injects a JavaScript file into the top of the top_js.jspf:
*DynamicInclude Java Class:
@Component(immediate = true, service = DynamicInclude.class)
public class JSTopHeadDynamicInclude extends BaseDynamicInclude {
@Override
public void include(
HttpServletRequest request, HttpServletResponse response,
String key)
throws IOException {
PrintWriter printWriter = response.getWriter();
String content = "<script charset=\"utf-8\" src=\"/o/my-custom-dynamic-include/my_example_javascript.js\" async />";
printWriter.println(content);
}
@Override
public void register(
DynamicInclude.DynamicIncludeRegistry dynamicIncludeRegistry) {
dynamicIncludeRegistry.register(
"/html/common/themes/top_js.jspf#resources"
);
}
}
Figure 1: The Top JS dynamic include lets you load additional scripts in the theme's head.
Note that the JavaScript src attribute’s value
/o/my-custom-dynamic-include/... is provided by the OSGi module’s
Web-ContextPath (/my-custom-dynamic-include in the example).
Now you know how to use the top_js.jspf dynamic include.