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-rw-r--r--gfx/wr/wrench/reftests/scrolling/fixed-position-scrolling-clip.yaml33
1 files changed, 33 insertions, 0 deletions
diff --git a/gfx/wr/wrench/reftests/scrolling/fixed-position-scrolling-clip.yaml b/gfx/wr/wrench/reftests/scrolling/fixed-position-scrolling-clip.yaml
new file mode 100644
index 0000000000..bdf537409e
--- /dev/null
+++ b/gfx/wr/wrench/reftests/scrolling/fixed-position-scrolling-clip.yaml
@@ -0,0 +1,33 @@
+root:
+ items:
+ - type: scroll-frame
+ bounds: [10, 10, 100, 300]
+ content-size: [100, 700]
+ id: 41
+ scroll-offset: [0, 50]
+ items:
+ # The rectangles below should stay in place even when the parent scroll area scrolls,
+ # because they use the root reference frame as their scroll node (fixed position).
+ # On the other hand, the clip item here will scroll with its parent scroll area. Normally
+ # fixed position items would only be clipped by their reference frame (in this case the
+ # root), but since these items specify an auxiliary clip, they will be clipped by their
+ # sibling clip (42).
+ - type: clip
+ bounds: [10, 60, 50, 50]
+ id: 42
+ - type: clip-chain
+ id: 142
+ clips: [42]
+ - type: stacking-context
+ bounds: [10, 10, 100, 100]
+ items:
+ - type: rect
+ bounds: [0, 0, 100, 50]
+ color: green
+ clip-chain: 142
+ spatial-id: root-reference-frame
+ - type: rect
+ bounds: [0, 50, 100, 50]
+ color: red
+ clip-chain: 142
+ spatial-id: root-reference-frame