how to generate pdf using Wicked-pdf after the page is loaded? - wicked-pdf

Question

is there a way to create pdf using wicked pdf after the page is loaded?
i want to create pdf after loaded, because i create the content for pdf after the page is loaded using javascript.
<div id="content">
<!-- some content -->
</div>
I would like to create a pdf file using wicked pdf, but is there a way to create it after the page is loaded?
Thank you very much.

Answer 1

First off, you can probably just create the pdf before it loads, since wkhtmltopdf can process and execute javascript. You may need to adjust the :javascript_delay setting if it isn't completely finishing running the JS.
Otherwise, you may want to package up the html in #content#, and send it as a param to a PDF-creating endpoint, with something like this:
$(function(){
form = $('<form action="/pages/report.pdf"><input id="form_content" name="form_content"></form>');
html_content = $('#content').html();
$('#form_content').val(html_content);
form.submit();
});
And an endpoint something like this:
format.pdf do
#content = params[:form_content]
render :pdf => 'report.pdf'
end
and a view that uses #content:
<%= #content %>
This endpoint probably should not do double duty with an html view, since that injected content could open you up to CSRF or XSS issues.