Paginating HTML document for printing with WebKit-

问题:

Internet Explorer has Print Template engine, where I can use DEVICERECT element to represent a physical page, then use LAYOUTRECT element as a rectangular view to flow the HTML document through into the page and drive the pagination. That prevents lines from being cut-off in the middle between adjacent pages. This mechanism is described in details here.

Does WebKit provide a similar feature? Specifically, does PhantomJS do? I'm looking for anything that would allow to paginate an existing HTML document which doesn't have predefined page-breaks, and view it paginated as a new transformed HTML or PDF document, without lines being cut-off in middle.

回答1:

The browser engine should take care of everything and you can aid it using a stylesheet for media="print".

For example to force page breaks such that every heading of level 1 or 2 (<h1> or <h2>) is placed at the beginning of a new page use page-break-before:

h1, h2 { page-break-before:always; }

In Chrome, IE & Opera you can control widows and orphans, but it hasn't landed in WebKit yet, so for now you could use

p { page-break-inside: avoid;  } 

to avoid page breaks inside paragraphs.

You can even control margins for first, left and right pages separately.

Phantom's render() uses stylesheets for print media if the output is a pdf file. rasterize.js example looks like a ready to use printing solution.

回答2:

This function working fine.

$(function () {
    $("#print-button").on("click", function () {
        var table = $("#table1"),
            tableWidth = table.outerWidth(),
            pageWidth = 600,
            pageCount = Math.ceil(tableWidth / pageWidth),
            printWrap = $("<div></div>").insertAfter(table),
            i,
            printPage;
        for (i = 0; i < pageCount; i++) {
            printPage = $("<div></div>").css({
                "overflow": "hidden",
                "width": pageWidth,
                "page-break-before": i === 0 ? "auto" : "always"
            }).appendTo(printWrap);
            table.clone().removeAttr("id").appendTo(printPage).css({
                "position": "relative",
                "left": -i * pageWidth
            });
        }
        table.hide();
        $(this).prop("disabled", true);
    });
});

This will split entire table into multiple sections...

Here is fiddle

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Code taken from this article and this page.