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PDF Output: When an inline image is placed alone inside a block tag, ensure that it is not split over two pages.

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Kovid Goyal 2019-12-18 22:28:35 +05:30
parent 89b0adfb43
commit dcbed07c95
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1 changed files with 12 additions and 6 deletions
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18
resources/pdf-preprint.js
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@ -11,19 +11,25 @@
// wrap up long words that dont fit in the page // wrap up long words that dont fit in the page
document.body.style.overflowWrap = 'break-word'; document.body.style.overflowWrap = 'break-word';
var block_styles = { var break_avoid_block_styles = {
"run-in":1, "block":1, "table-row-group":1, "table-column":1, "table-column-group":1, "run-in":1, "block":1, "table-row-group":1, "table-column":1, "table-column-group":1,
"table-header-group":1, "table-footer-group":1, "table-row":1, "table-cell":1, "table-header-group":1, "table-footer-group":1, "table-row":1, "table-cell":1,
"table-caption":1, "inline-block:":1 "table-caption":1, // page-break-avoid does not work for inline-block either
}; };
function avoid_page_breaks_inside(node) {
node.style.pageBreakInside = 'avoid';
node.style.breakInside = 'avoid';
}
for (const img of document.images) { for (const img of document.images) {
var style = window.getComputedStyle(img); var style = window.getComputedStyle(img);
if (style.maxHeight === 'none') img.style.maxHeight = '100vh'; if (style.maxHeight === 'none') img.style.maxHeight = '100vh';
if (style.maxWidth === 'none') img.style.maxWidth = '100vw'; if (style.maxWidth === 'none') img.style.maxWidth = '100vw';
if (block_styles[style.display]) {
img.style.pageBreakInside = 'avoid'; var is_block = break_avoid_block_styles[style.display];
img.style.breakInside = 'avoid'; if (is_block) avoid_page_breaks_inside(img);
} else if (img.parentNode && img.parentNode.childElementCount === 1) avoid_page_breaks_inside(img.parentNode);
} }
})(); })();