Yesterday I had some time to look at supporting multipage Google Forms. Unfortunately it doesn’t look like it will be possible because of the way multipage forms work. As you work through a multipage form Google adds hidden values to each successive page to facilitate moving forward and back without losing any data. Pretty standard stuff for a “wizard-like” form implementation.
The problem is the way the plugin is implemented, the HTML code for the form is extracted and then re-processed before being added to a page within WordPress. What I’ve implemented works fine for a single page form, actually, in my opinion, it works pretty well. However, detecting the page transitions and obtaining the hidden form fields either isn’t easy or isn’t possible. Right now I am leaning toward the later because the hidden fields are generated based on the prior page (Continue or Back) form submission.
What I have successfully made work is to use the “embedded” version of a Google form within a WordPress page. It works but aesthetically it looks awful. What I am playing with right now is some jQuery to try and manipulate the embedded form to use the styling from the site instead of from Google. We’ll see how it goes ….