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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibWeb: Implement mask-image CSS property support

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Implemented by reusing AddMask display list item that was initially
added for `background-clip` property.

Progress on flashlight effect on https://null.com/games/athena-crisis
This commit is contained in:
Aliaksandr Kalenik 2024-11-16 03:25:48 +03:00 • committed by Andreas Kling
commit 96a35767b6
Notes: github-actions[bot] 2024-11-18 21:59:52 +00:00
11 changed files with 149 additions and 58 deletions
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9
Libraries/LibWeb/Painting/StackingContext.cpp
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@ -329,6 +329,15 @@ void StackingContext::paint(PaintContext& context) const
}
context.display_list_recorder().push_stacking_context(push_stacking_context_params);
if (auto mask_image = computed_values.mask_image()) {
auto mask_display_list = DisplayList::create();
DisplayListRecorder display_list_recorder(*mask_display_list);
auto mask_painting_context = context.clone(display_list_recorder);
auto mask_rect_in_device_pixels = context.enclosing_device_rect(paintable_box().absolute_padding_box_rect());
mask_image->paint(mask_painting_context, { {}, mask_rect_in_device_pixels.size() }, CSS::ImageRendering::Auto);
context.display_list_recorder().add_mask(mask_display_list, mask_rect_in_device_pixels.to_type<int>());
}
if (auto masking_area = paintable_box().get_masking_area(); masking_area.has_value()) {
if (masking_area->is_empty())
return;