Allow operations on *all* nodes when using a pager

If you use a pager to limit the number of nodes shown in a view, you can select all the nodes on the current page. It would be great to be able to select all the nodes on all the pages for this view. I attached a little UI mockup for this.

Gmail does this : when you select all conversations, it will check all the conversations on the current page, and it will allow users to select the xxx remaining conversations on other pages.

Don't know how hard this would be to implement, but it would greatly enhance the usefullness of this module. (think for example, you create a view that allows to filter by category with an exposed filter, and you could for example publish / unpublish all the nodes in this specific category)