LibWeb: Avoid redundant wheel hit test target recording

Libraries/LibWeb/Painting/DisplayListRecordingContext.h

@@ -123,6 +123,17 @@ class WEB_API DisplayListRecordingContext {
     bool has_blocking_wheel_event_listeners() const { return m_has_blocking_wheel_event_listeners; }
     void set_has_blocking_wheel_event_listeners(bool value) { m_has_blocking_wheel_event_listeners = value; }
     bool has_blocking_wheel_event_region_covering_viewport() const { return m_has_blocking_wheel_event_region_covering_viewport; }
+    bool should_record_wheel_hit_test_targets() const { return m_should_record_wheel_hit_test_targets; }
+    void set_should_record_wheel_hit_test_targets(bool value) { m_should_record_wheel_hit_test_targets = value; }
+
+    Optional<Painting::VisualContextIndex> cached_wheel_hit_test_target_for(Painting::Paintable const& paintable) const
+    {
+        return m_wheel_hit_test_target_cache.get(&paintable);
+    }
+    void cache_wheel_hit_test_target_for(Painting::Paintable const& paintable, Painting::VisualContextIndex target)
+    {
+        m_wheel_hit_test_target_cache.set(&paintable, target);
+    }
 
 private:
     Painting::DisplayListRecorder& m_display_list_recorder;
@@ -144,6 +155,8 @@ class WEB_API DisplayListRecordingContext {
     Painting::ScrollState const* m_async_scrolling_scroll_state { nullptr };
     bool m_has_blocking_wheel_event_listeners { false };
     bool m_has_blocking_wheel_event_region_covering_viewport { false };
+    bool m_should_record_wheel_hit_test_targets { false };
+    HashMap<Painting::Paintable const*, Painting::VisualContextIndex> m_wheel_hit_test_target_cache;
 };
 
 }

Libraries/LibWeb/Painting/Paintable.cpp

@@ -677,27 +677,63 @@ static void record_main_thread_wheel_event_region(Paintable const& paintable_box
     });
 }
 
-static Optional<VisualContextIndex> wheel_hit_test_target_scroll_node_index_for(Paintable const& paintable_box)
-{
-    if (paintable_box.own_scroll_node_index().value() && paintable_box.could_be_scrolled_by_wheel_event())
-        return paintable_box.own_scroll_node_index();
-    if (auto scrollable_ancestor = paintable_box.nearest_scrollable_ancestor())
-        return scrollable_ancestor->own_scroll_node_index();
-    if (auto viewport_paintable = paintable_box.document().paintable(); viewport_paintable && viewport_paintable->could_be_scrolled_by_wheel_event())
-        return viewport_paintable->own_scroll_node_index();
-    return {};
+static VisualContextIndex wheel_hit_test_target_scroll_node_index_for(Paintable const& paintable_box, DisplayListRecordingContext& context)
+{
+    Vector<Paintable const*, 16> paintables_to_cache;
+    auto target = VisualContextIndex {};
+    auto const* current = &paintable_box;
+    while (true) {
+        if (auto cached_target = context.cached_wheel_hit_test_target_for(*current); cached_target.has_value()) {
+            target = *cached_target;
+            break;
+        }
+
+        paintables_to_cache.append(current);
+        if (current->own_scroll_node_index().value() && current->could_be_scrolled_by_wheel_event()) {
+            target = current->own_scroll_node_index();
+            break;
+        }
+
+        auto containing_block = current->containing_block();
+        if (containing_block && containing_block->is_fixed_position()) {
+            if (containing_block->own_scroll_node_index().value() && containing_block->could_be_scrolled_by_wheel_event())
+                target = containing_block->own_scroll_node_index();
+            if (target.value())
+                break;
+            containing_block = nullptr;
+        }
+
+        if (containing_block) {
+            current = containing_block.ptr();
+            continue;
+        }
+
+        auto viewport_paintable = current->document().paintable();
+        if (!viewport_paintable || viewport_paintable.ptr() == current)
+            break;
+        current = viewport_paintable.ptr();
+    }
+
+    for (auto const* paintable : paintables_to_cache)
+        context.cache_wheel_hit_test_target_for(*paintable, target);
+    return target;
 }
 
 static void record_wheel_hit_test_target(Paintable const& paintable_box, DisplayListRecordingContext& context)
 {
+    // OPTIMIZATION: The compositor falls back to the viewport when there are no explicit targets.
+    // Avoid generating redundant per-box targets when no non-viewport scroller could need one.
+    if (!context.should_record_wheel_hit_test_targets())
+        return;
+
     if (!paintable_box.is_visible() || !paintable_box.visible_for_hit_testing())
         return;
 
     auto rect = css_rect_to_device_rect(paintable_box.absolute_border_box_rect(), context.device_pixels_per_css_pixel());
     if (rect.is_empty())
         return;
 
-    auto target_scroll_node_index = wheel_hit_test_target_scroll_node_index_for(paintable_box).value_or({});
+    auto target_scroll_node_index = wheel_hit_test_target_scroll_node_index_for(paintable_box, context);
     auto corner_radii = paintable_box.border_radii_data().as_corners(context.device_pixel_converter());
     if (corner_radii.has_any_radius()) {
         context.display_list_recorder().compositor_wheel_hit_test_target_with_corner_radii({
@@ -1582,17 +1618,17 @@ bool Paintable::could_be_scrolled_by_wheel_event(ScrollDirection direction) cons
     if (is_viewport_paintable())
         overflow = overflow_value_applied_to_viewport_for_wheel_scrolling(document(), direction);
 
+    if (overflow != CSS::Overflow::Auto && overflow != CSS::Overflow::Scroll)
+        return false;
+
     auto scrollable_overflow_rect = this->scrollable_overflow_rect();
     if (!scrollable_overflow_rect.has_value())
         return false;
 
     CSSPixels scrollable_overflow_size = scrollable_overflow_rect->primary_size_for_orientation(orientation);
     CSSPixels scrollport_size = absolute_padding_box_rect().primary_size_for_orientation(orientation);
 
-    if (overflow == CSS::Overflow::Auto || overflow == CSS::Overflow::Scroll)
-        return scrollable_overflow_size > scrollport_size;
-
-    return false;
+    return scrollable_overflow_size > scrollport_size;
 }
 
 bool Paintable::could_be_scrolled_by_wheel_event() const

Libraries/LibWeb/Painting/ViewportPaintable.cpp

@@ -94,6 +94,7 @@ void ViewportPaintable::initialize_async_scrolling_metadata_recording(DisplayLis
         scroll_state(),
         blocking_wheel_event_region_state.has_blocking_wheel_event_listeners,
         blocking_wheel_event_region_state.has_blocking_wheel_event_region_covering_viewport);
+    context.set_should_record_wheel_hit_test_targets(m_has_non_viewport_wheel_scroll_target_candidate);
 }
 
 void ViewportPaintable::finalize_async_scrolling_metadata_recording(DisplayListRecordingContext& context, HTML::LocalNavigable& navigable, Gfx::IntRect viewport_rect)
@@ -218,10 +219,19 @@ void ViewportPaintable::clear_scroll_state()
     m_scroll_state.clear();
     m_scroll_state_snapshot = {};
     m_needs_to_refresh_scroll_state = true;
+    m_has_non_viewport_wheel_scroll_target_candidate = false;
 }
 
 void ViewportPaintable::register_scroll_node(AccumulatedVisualContextTree& visual_context_tree_being_built, VisualContextIndex node_index, Paintable const& paintable_box, VisualContextIndex parent_index)
 {
+    if (!paintable_box.is_viewport_paintable()) {
+        auto overflow_x = paintable_box.layout_node().overflow_x();
+        auto overflow_y = paintable_box.layout_node().overflow_y();
+        if (overflow_x == CSS::Overflow::Auto || overflow_x == CSS::Overflow::Scroll
+            || overflow_y == CSS::Overflow::Auto || overflow_y == CSS::Overflow::Scroll)
+            m_has_non_viewport_wheel_scroll_target_candidate = true;
+    }
+
     auto slot = m_scroll_state.register_scroll_node(node_index, paintable_box, visual_context_tree_being_built.scroll_state_slot_for_node(parent_index));
     visual_context_tree_being_built.node_at(node_index).data.get<ScrollData>().state_slot = slot;
 }

Libraries/LibWeb/Painting/ViewportPaintable.h

@@ -91,6 +91,7 @@ class WEB_API ViewportPaintable final : public PaintableWithLines {
     ScrollState m_scroll_state;
     ScrollStateSnapshot m_scroll_state_snapshot;
     bool m_needs_to_refresh_scroll_state { true };
+    bool m_has_non_viewport_wheel_scroll_target_candidate { false };
 
     Vector<WeakPtr<Paintable>> m_paintable_boxes_with_auto_content_visibility;
 

Tests/LibWeb/Text/expected/async-scrolling/blocking-wheel-event-region-hit-testing.txt

@@ -13,12 +13,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x13]
-  CompositorWheelHitTestTarget@2 target_scroll_node_index=0 rect=[20,20 100x100]
   CompositorBlockingWheelEventRegion@2 rect=[20,20 100x100]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[20,160 100x100]
-  CompositorWheelHitTestTarget@4 target_scroll_node_index=0 rect=[20,160 200x100]
   CompositorBlockingWheelEventRegion@4 rect=[20,160 200x100]
 Restore@0
-

Tests/LibWeb/Text/expected/async-scrolling/blocking-wheel-listener-invalidation.txt

@@ -4,14 +4,8 @@ after routing admission: blocking wheel event listeners
 display list:
 AccumulatedVisualContext Tree:
   [0] transform=[1,0,0,1,0,0] origin=(0,0) (ViewportPaintable(Viewport<#document>))
-    [1] scroll (PaintableWithLines(BlockContainer<PRE>#out))
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=1 rect=[0,0 800x600]
   CompositorScrollNode@0 scroll_node_index=1 parent_scroll_node_index=0 scrollport_rect=[0,0 800x600] min_scroll_offset=[0,0] max_scroll_offset=[0,1413] is_viewport=true
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2013]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2000]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2000]
 Restore@0
-

Tests/LibWeb/Text/expected/async-scrolling/nested-navigable-wheel-admission.txt

@@ -8,16 +8,10 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=1 rect=[0,0 800x600]
   CompositorScrollNode@0 scroll_node_index=1 parent_scroll_node_index=0 scrollport_rect=[0,0 800x600] min_scroll_offset=[0,0] max_scroll_offset=[0,1413] is_viewport=true
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2013]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2000]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2000]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[40,40 160x120]
   CompositorMainThreadWheelEventRegion@1 rect=[40,40 160x120]
   Save@1
     AddClipRect@1 rect=[40,40 160x120]
     DrawCompositedContext@1 dst_rect=[40,40 160x120]
   Restore@1
 Restore@0
-

Tests/LibWeb/Text/expected/async-scrolling/sticky-areas.txt

@@ -15,15 +15,8 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=1 rect=[0,0 800x600]
   CompositorScrollNode@0 scroll_node_index=1 parent_scroll_node_index=0 scrollport_rect=[0,0 800x600] min_scroll_offset=[0,0] max_scroll_offset=[0,1429] is_viewport=true
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2029]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x2016]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,16 800x2000]
-  CompositorWheelHitTestTarget@2 target_scroll_node_index=1 rect=[0,0 800x16]
   CompositorStickyArea@2 scroll_node_index=2 parent_scroll_node_index=1 nearest_scrolling_ancestor_index=1 position_relative_to_scroll_ancestor=[0,0] border_box_size=[800x16] scrollport_size=[800x600] containing_block_region=[0,0 800x2016] needs_parent_offset_adjustment=true inset_top=0 inset_right=none inset_bottom=none inset_left=none
-  CompositorWheelHitTestTarget@3 target_scroll_node_index=1 rect=[0,0 800x16]
   CompositorStickyArea@3 scroll_node_index=3 parent_scroll_node_index=2 nearest_scrolling_ancestor_index=1 position_relative_to_scroll_ancestor=[0,0] border_box_size=[800x16] scrollport_size=[800x600] containing_block_region=[0,0 800x16] needs_parent_offset_adjustment=true inset_top=20 inset_right=none inset_bottom=none inset_left=none
   DrawGlyphRun@3 rect=[0,0 45x16] translation=[0,12.796875] color=rgb(0, 0, 0)
 Restore@0
-

Tests/LibWeb/Text/expected/async-scrolling/viewport-wheel-target-fast-path.txt

@@ -0,0 +1,2 @@
+viewport wheel target: viewport
+has explicit wheel hit test targets: false

Tests/LibWeb/Text/expected/css/text-underline-position.txt

@@ -4,12 +4,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x37]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x16]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x16]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 27.15625x16]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[43.15625,8 27.640625x16]
   DrawGlyphRun@1 rect=[8,8 28x16] translation=[8,20.796875] color=rgb(0, 0, 0)
   DrawLine@1 from=[8,24] to=[35,24] color=rgb(0, 0, 0) thickness=2 style=Solid
   DrawGlyphRun@1 rect=[35,8 8x16] translation=[35.15625,20.796875] color=rgb(0, 0, 0)

Tests/LibWeb/Text/expected/display_list/abspos-inside-nested-opacity-inside-relpos.txt

@@ -7,11 +7,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x221]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x200]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 200x200]
-  CompositorWheelHitTestTarget@7 target_scroll_node_index=0 rect=[8,8 100x100]
   FillRect@7 rect=[8,8 100x100] color=rgb(0, 0, 0)
 Restore@0
 

Tests/LibWeb/Text/expected/display_list/abspos-inside-opacity-inside-relpos.txt

@@ -6,11 +6,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x221]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x200]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 200x200]
-  CompositorWheelHitTestTarget@4 target_scroll_node_index=0 rect=[8,8 100x100]
   FillRect@4 rect=[8,8 100x100] color=rgb(0, 0, 0)
 Restore@0
 

Tests/LibWeb/Text/expected/display_list/animated-transform-visual-context-update.txt

@@ -6,10 +6,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x121]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x100]
-  CompositorWheelHitTestTarget@2 target_scroll_node_index=0 rect=[8,8 100x100]
   FillRect@2 rect=[8,8 100x100] color=rgb(0, 128, 0)
 Restore@0
 
@@ -21,10 +17,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x121]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x100]
-  CompositorWheelHitTestTarget@2 target_scroll_node_index=0 rect=[8,8 100x100]
   FillRect@2 rect=[8,8 100x100] color=rgb(0, 128, 0)
 Restore@0
 

Tests/LibWeb/Text/expected/display_list/background-attachment-change-repaints.txt

@@ -5,10 +5,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x213]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x200]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 200x200]
   Save@1
     AddClipRect@1 rect=[0,0 200x200]
     PaintLinearGradient@1 rect=[0,0 200x600]
@@ -23,10 +19,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x213]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x200]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 200x200]
   Save@1
     AddClipRect@1 rect=[0,0 200x200]
     PaintLinearGradient@2 rect=[0,0 800x600]

Tests/LibWeb/Text/expected/display_list/background-attachment-fixed.txt

@@ -5,12 +5,9 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=1 rect=[0,0 800x600]
   CompositorScrollNode@0 scroll_node_index=1 parent_scroll_node_index=0 scrollport_rect=[0,0 800x600] min_scroll_offset=[0,0] max_scroll_offset=[0,613] is_viewport=true
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,0 800x1213]
   Save@1
     PaintLinearGradient@2 rect=[0,0 800x600]
   Restore@1
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=1 rect=[0,13 800x1200]
 Restore@0
 

Tests/LibWeb/Text/expected/display_list/block-in-inline-no-border-for-phantom-inline-box.txt

@@ -4,12 +4,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x90]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x80]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x80]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[100,50 50x10]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,3 102x74]
   FillPath@1 path_bounding_rect=[0,3 8x14]
   FillPath@1 path_bounding_rect=[0,63 8x14]
   DrawGlyphRun@1 rect=[2,5 6x10] translation=[2,13] color=rgb(0, 0, 0)

Tests/LibWeb/Text/expected/display_list/border-inner-corner-right-angle-all-edges.txt

@@ -4,15 +4,10 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x271]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x250]
-  CompositorWheelHitTestTargetWithCornerRadii@1 target_scroll_node_index=0 rect=[8,8 178x120] corner_radii=[40x10,40x10,40x10,40x10]
   FillPath@1 path_bounding_rect=[166,12.651531 20x110.696945]
   FillPath@1 path_bounding_rect=[11.232849,113 168.56511x15]
   FillPath@1 path_bounding_rect=[8,14.061594 8x107.876816]
   FillPath@1 path_bounding_rect=[11.232849,7.999998 168.56511x15.000002]
-  CompositorWheelHitTestTargetWithCornerRadii@1 target_scroll_node_index=0 rect=[8,128 180x130] corner_radii=[10x40,10x40,10x40,10x40]
   FillPath@1 path_bounding_rect=[173,134.20204 15.0000305x117.59592]
   FillPath@1 path_bounding_rect=[12.651531,238 170.69693x20]
   FillPath@1 path_bounding_rect=[7.9999995,134.20204 15x117.59592]

Tests/LibWeb/Text/expected/display_list/button-with-text-decoration.txt

@@ -4,15 +4,8 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x41]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x20]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x20]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 105.671875x20]
   FillRect@1 rect=[8,8 106x20] color=rgb(212, 208, 200)
   FillPath@1 path_bounding_rect=[8,8 106x20]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[13,10 95.671875x16]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[13,10 95.671875x16]
   DrawGlyphRun@1 rect=[13,10 96x16] translation=[13,22.796875] color=rgb(0, 0, 0)
   DrawLine@1 from=[13,26] to=[109,26] color=rgb(0, 0, 0) thickness=2 style=Solid
 Restore@0

Tests/LibWeb/Text/expected/display_list/canvas-compositor-surface.txt

@@ -4,11 +4,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x53]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x32]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x32]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 32x32]
   DrawCanvas@1 dst_rect=[8,8 32x32] content_generation=0
 Restore@0
 

Tests/LibWeb/Text/expected/display_list/clip-auto-invalidation.txt

@@ -5,9 +5,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x21]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,13 100x100]
   FillRect@1 rect=[8,13 100x100] color=rgb(0, 128, 0)
 Restore@0
 
@@ -19,9 +16,6 @@ AccumulatedVisualContext Tree:
 
 DisplayList:
 SaveLayer@0
-  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
-  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x21]
-  CompositorWheelHitTestTarget@2 target_scroll_node_index=0 rect=[8,13 100x100]
   FillRect@2 rect=[8,13 100x100] color=rgb(0, 128, 0)
 Restore@0