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diff --git a/testing/web-platform/tests/css/css-text/white-space/hanging-whitespace-003.tentative.html b/testing/web-platform/tests/css/css-text/white-space/hanging-whitespace-003.tentative.html new file mode 100644 index 0000000000..b8f4df5967 --- /dev/null +++ b/testing/web-platform/tests/css/css-text/white-space/hanging-whitespace-003.tentative.html @@ -0,0 +1,50 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>CSS Text Level 3: unconditional hanging spaces don't hang before non-overflowing conditionals</title> +<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com"> +<link rel="help" href="https://drafts.csswg.org/css-text-3/#hanging"> +<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2"> +<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht"> +<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> +<meta name="assert" content="Hanging can only happen at the end of a line, so unconditionally hanging spaces can only hang before conditionally hanging spaces if the latter would fully overflow"> + +<style> + div { + font: 25px/1 Ahem; + width: 4ch; + height: 4ch; + background: + linear-gradient(green, green) 0 1ch / 1ch 1ch no-repeat, + linear-gradient(green, green) 0 2ch / 2ch 1ch no-repeat, + linear-gradient(green, green) 1ch 3ch / 3ch 1ch no-repeat, + red; + + text-align: right; + white-space: normal; + color: green; + } + .pre-wrap { + white-space: pre-wrap; + } +</style> + +<p>Test passes if there is a filled green square and <strong>no red</strong>.</p> + +<div>XXXX　　<span class="pre-wrap"> </span><br> + XXX　　<span class="pre-wrap"> </span><br> + XX　　<span class="pre-wrap"> </span><br> + X　　<span class="pre-wrap"> </span></div> + +<!-- + With white-space: normal, an ideographic space (U+3000) hangs unconditionally, + as long as every glyph after it until the end of the line also hangs. + With white-space: pre-wrap, a sequence of spaces that is followed by a forced + line break (where the end of the block counts as a forced line break) hangs + conditionally, meaning that the part of it that doesn't fit in the line's + available width is the only one that hangs. (This is independent to whether it + would overflow the block's content area.) + + Therefore, unconditional hanging glyphs before such a sequence of conditional + hanging glyphs can only hang if the conditional sequence overflows the line's + available width. +--> |