[Webkit-unassigned] [Bug 46562] New: Support repeating elements - CSS Generated Content for Paged Media Module

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=46562

           Summary: Support repeating elements - CSS Generated Content for
                    Paged Media Module
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Enhancement
          Priority: P2
         Component: Printing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dev_oskar at hotmail.com


Support for reposition and repeating of elements in the document flow for printing should be supported,

This way a header and/or footer elements can be moved into the CSS3 Paged Media Level 3 Margin Boxes.
CSS3 Paged Media Level 3 lacks the concept of reposition of elements.

CSS Generated Content for Paged Media Module - Running headers and-footers 
( http://www.w3.org/TR/css3-gcpm/#running-headers-and-footers ) adds the concept of reposition of elements via css.

PrinceXML supports reposition via the "prince-flow" property.

If "Running headers and footers" will be to complex to add webkit rendering, 
Webkit could at least add a way to reintroduce an element into the document flow on each printout page.

A simple approach would be a new prefixed css property:

-webkit-position-repeat: none; 
-webkit-position-repeat: top;
-webkit-position-repeat: bottom;

Adding enough room for bottom elements is tricky.
An approach could be to reduce the virtual page size, as soon as a page break page should happen, the bottom element(s) get added and rendered.
This concept may be useful for thead/tfoot printing on each page too.

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