Load 'clean' PHP page in iframe

[Robin S]

I'm working on a module that needs to load a page inside an iframe (inside a CKEditor dialog).

Currently I am loading a plain HTML file and doing all the processing with Javascript, which works fine. But I'm wondering what options are available to me if I wanted to load a PHP/API-powered page in the iframe. PHP files cannot be directly loaded inside /site/, so I thought about the following options to work around this. I'm keen to get any advice about which would be best and any other solutions.

1. Have my module copy a PHP file to the root directory, where PHP files may by loaded. This file could then bootstrap PW. This option seems messy - I don't think it's good for a module to copy files to the root.

2. Make a Process module that creates a hidden page under Admin. The problem I'm finding with this is that it's difficult to avoid visible admin template elements being rendered in the page. This is similar to what @blynx was asking about here. I can append 'modal=1' to the URL to avoid the admin header and footer (I think that is what @horst's modules do) but I'm finding that message notifications (e.g. compiler notifications) can still appear and I don't want them in my iframe. Is there another URL parameter (or a hook maybe) that I can use to prevent notifications?

3. In the install() method of my module, create a new template and a new page and assign the template to the page. I wouldn't want my template file in the /site/templates/ directory but I figure there is a way to assign a template file that is inside my module directory. This option seems like it will work, but it involves more code for the page/template creation and deletion on uninstall than the elegance of the automatic page options for a Process module.

4. Some kind of hook to page render that prevents the normal admin template markup and outputs my custom markup instead. I guess with this option I wouldn't even need a page - just look for some GET variable in the URL. Would this be a good solution?

Any other suggestions for how I can load a clean page with access to PHP and the PW API?

P.S. It isn't a negative for the loaded page to be using the admin template if I can find a solution to the notifications issue as part of the objective is to use the jQuery version and inputfield styles that come with the admin theme.

[Robin S]

Just realised that 'modal=1' is hiding the header/footer with CSS rather than different markup being rendered. So easy enough for me to add some CSS to hide the notices too.

#notices { display:none; }