LibWeb: Start implementing sizing for tracks with span > 1 items in GFC

Partially implements: - Increase sizes to accommodate spanning items crossing content-sized tracks - Increase sizes to accommodate spanning items crossing flexible tracks from https://www.w3.org/TR/css-grid-2/#algo-content
2025-07-27 23:37:35 +00:00 · 2023-05-14 19:16:26 +03:00 · 2023-05-14 19:16:26 +03:00 · 87a7299078
commit 87a7299078
parent 7a5603052a
4 changed files with 305 additions and 45 deletions
--- a/Tests/LibWeb/Layout/expected/grid/row-span-2.txt
+++ b/Tests/LibWeb/Layout/expected/grid/row-span-2.txt
@ -0,0 +1,105 @@
+Viewport <#document> at (0,0) content-size 800x600 children: not-inline
+  BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
+    BlockContainer <body> at (8,8) content-size 784x193.375 children: not-inline
+      Box <div.grid-container> at (8,8) content-size 784x193.375 [GFC] children: not-inline
+        BlockContainer <(anonymous)> at (8,8) content-size 0x0 [BFC] children: inline
+          TextNode <#text>
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+              "In a sollicitudin augue. Sed ante augue,"
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+              "rhoncus nec porttitor id, lacinia et nibh."
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+            frag 0 from TextNode start: 85, length: 48, rect: [401.46875,42 378.625x17.46875]
+              "Pellentesque diam libero, ultrices eget eleifend"
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+            frag 0 from TextNode start: 134, length: 22, rect: [401.46875,60 182.8125x17.46875]
+              "at, consequat ut orci."
+          TextNode <#text>
+        BlockContainer <(anonymous)> at (8,8) content-size 0x0 [BFC] children: inline
+          TextNode <#text>
+        BlockContainer <div.grid-item.item-span-one-two> at (401.46875,139.296875) content-size 392x184.109375 [BFC] children: inline
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+            frag 0 from TextNode start: 1, length: 43, rect: [401.46875,139.296875 359.15625x17.46875]
+              "Suspendisse potenti. Pellentesque at varius"
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+              "lacus, sed sollicitudin leo. Pellentesque"
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+            frag 0 from TextNode start: 87, length: 44, rect: [401.46875,173.296875 377.640625x17.46875]
+              "malesuada mi eget pellentesque tempor. Donec"
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+            frag 0 from TextNode start: 132, length: 47, rect: [401.46875,191.296875 378.03125x17.46875]
+              "egestas mauris est, ut lobortis nisi luctus at."
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+              "Vivamus eleifend, lorem vulputate maximus"
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+            frag 0 from TextNode start: 222, length: 37, rect: [401.46875,226.296875 312.765625x17.46875]
+              "porta, nunc metus porttitor nibh, nec"
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+            frag 0 from TextNode start: 260, length: 31, rect: [401.46875,243.296875 242.921875x17.46875]
+              "bibendum nulla lectus ut felis."
+          TextNode <#text>
+        BlockContainer <(anonymous)> at (8,8) content-size 0x0 [BFC] children: inline
+          TextNode <#text>
+        BlockContainer <div.grid-item.item-span-two> at (8,8) content-size 393.46875x315.40625 [BFC] children: inline
+          line 0 width: 337.6875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
+            frag 0 from TextNode start: 1, length: 39, rect: [8,8 337.6875x17.46875]
+              "Lorem ipsum dolor sit amet, consectetur"
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+              "adipiscing elit. Sed vitae condimentum erat, ac"
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+            frag 0 from TextNode start: 89, length: 45, rect: [8,42 365.84375x17.46875]
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+              "semper dolor aliquet at. Phasellus scelerisque"
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+            frag 0 from TextNode start: 182, length: 45, rect: [8,77 377.203125x17.46875]
+              "dapibus diam sed rhoncus. Proin sed orci leo."
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+            frag 0 from TextNode start: 228, length: 45, rect: [8,95 375.390625x17.46875]
+              "Praesent pellentesque mi eu nunc gravida, vel"
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+            frag 0 from TextNode start: 274, length: 46, rect: [8,112 383.53125x17.46875]
+              "consectetur nulla malesuada. Sed pellentesque,"
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+            frag 0 from TextNode start: 321, length: 47, rect: [8,130 344.8125x17.46875]
+              "elit sit amet sollicitudin sollicitudin, lectus"
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+              "cursus, vitae gravida mauris dictum."
+          TextNode <#text>
+        BlockContainer <(anonymous)> at (8,8) content-size 0x0 [BFC] children: inline
+          TextNode <#text>