[block-in-inline] Support line-clamping correctly.

To do this we always set the correct "lines-util-clamp" on the layout result, and just read that within the block-layout-algorithm. For non block-in-inline layout there should be no behaviour change. Bug: 716930 Change-Id: Ib8fc361f356943f385becd7503fa152d1f0f091d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3111327 Commit-Queue: Ian Kilpatrick <ikilpatrick@chromium.org> Reviewed-by: Koji Ishii <kojii@chromium.org> Cr-Commit-Position: refs/heads/main@{#914520}
web-platform-tests · Aug 23, 2021 · 78754a4 · 78754a4
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diff --git a/css/css-overflow/reference/webkit-line-clamp-038-ref.html b/css/css-overflow/reference/webkit-line-clamp-038-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<style>
+.clamp {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 3;
+  font: 16px / 32px serif;
+  background-color: yellow;
+  overflow: hidden;
+}
+</style>
+<div class="clamp">
+  <div>
+    Line 1<br>Line 2<br>Line 3<br>Line 4<br>Line 5
+  </div>
+</div>
diff --git a/css/css-overflow/reference/webkit-line-clamp-039-ref.html b/css/css-overflow/reference/webkit-line-clamp-039-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<style>
+.clamp {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 5;
+  font: 16px / 32px serif;
+  background-color: yellow;
+  overflow: hidden;
+}
+</style>
+<div class="clamp">
+  <div>
+    Line 1<br>Line 2<br>Line 3<br>Line 4<br>Line 5<br>Line 6
+  </div>
+</div>
diff --git a/css/css-overflow/webkit-line-clamp-038.html b/css/css-overflow/webkit-line-clamp-038.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#webkit-line-clamp">
+<link rel="match" href="reference/webkit-line-clamp-038-ref.html">
+<meta name="assert" content="-webkit-line-clamp correctly clamps a block-in-inline.">
+<style>
+.clamp {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 3;
+  font: 16px / 32px serif;
+  background-color: yellow;
+  overflow: hidden;
+}
+</style>
+<div class="clamp">
+  <div>
+    Line 1
+    <span><div>Line 2<br>Line 3<br>Line 4</div></span>
+    Line 5
+  </div>
+</div>
diff --git a/css/css-overflow/webkit-line-clamp-039.html b/css/css-overflow/webkit-line-clamp-039.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#webkit-line-clamp">
+<link rel="match" href="reference/webkit-line-clamp-039-ref.html">
+<meta name="assert" content="-webkit-line-clamp correctly clamps a block-in-inline.">
+<style>
+.clamp {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 5;
+  font: 16px / 32px serif;
+  background-color: yellow;
+  overflow: hidden;
+}
+</style>
+<div class="clamp">
+  <div>
+    Line 1
+    <span><div>Line 2<br>Line 3<br>Line 4</div></span>
+    Line 5<br>Line 6
+  </div>
+</div>