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LibWeb/CSS: Simplify calculations after parsing them

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If a calculation was simplified down to a single numeric node, then most
of the time we can instead return a regular StyleValue, for example
`calc(2px + 3px)` would be simplified down to a `5px` LengthStyleValue.
This means that parse_calculated_value() can't return a
CalculatedStyleValue directly, and its callers all have to handle
non-calculated values as well as calculated ones.

This simplification is reflected in the new test results. Serialization
is not yet correct in all cases but we're closer than we were. :^)
This commit is contained in:
Sam Atkins
2025-01-28 16:24:39 +00:00
committed by Andreas Kling
parent 39cefd7abf
commit ee712bd98f
Notes: github-actions[bot] 2025-01-30 18:32:52 +00:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/LadybirdBrowser/ladybird/commit/ee712bd98f7
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3383
15 changed files with 295 additions and 228 deletions
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6
Tests/LibWeb/Text/expected/wpt-import/css/css-grid/parsing/grid-columns-rows-get-set-multiple.txt
View File

@@ -2,8 +2,8 @@ Harness status: OK
Found 40 tests
23 Pass
17 Fail
22 Pass
18 Fail
Pass Test getting grid-template-columns and grid-template-rows set through CSS for element 'gridWithFixedElement' : grid-template-columns = '7px 11px', grid-template-rows = '17px 2px'
Pass Test getting grid-template-columns and grid-template-rows set through CSS for element 'gridWithPercentElement' : grid-template-columns = '400px 800px', grid-template-rows = '150px 450px'
Fail Test getting grid-template-columns and grid-template-rows set through CSS for element 'gridWithPercentWithoutSize' : grid-template-columns = '3.5px 7px', grid-template-rows = '4px 12px'
@@ -28,7 +28,7 @@ Pass Test getting and setting grid-template-rows and grid-template-columns throu
Pass Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '0px 160px 22px', element.style.gridTemplateColumns = 'auto 16em 22px', grid-template-rows = '336px 100px 0px', element.style.gridTemplateRows = '56% 10em auto'
Pass Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '160px 20px', element.style.gridTemplateColumns = '16em minmax(16px, 20px)', grid-template-rows = '90px 0px', element.style.gridTemplateRows = 'minmax(10%, 15%) auto'
Pass Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '160px 640px', element.style.gridTemplateColumns = '16em 2fr', grid-template-rows = '600px 0px', element.style.gridTemplateRows = '14fr auto'
Pass Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '25px 20px', element.style.gridTemplateColumns = 'calc(25px) calc(2em)', grid-template-rows = '0px 60px', element.style.gridTemplateRows = 'auto calc(10%)'
Fail Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '25px 20px', element.style.gridTemplateColumns = 'calc(25px) calc(2em)', grid-template-rows = '0px 60px', element.style.gridTemplateRows = 'auto calc(10%)'
Fail Test getting and setting grid-template-rows and grid-template-columns through JS: grid-template-columns = '345px 92px', element.style.gridTemplateColumns = 'calc(25px + 40%) minmax(min-content, calc(10% + 12px))', grid-template-rows = '100px 0px', element.style.gridTemplateRows = 'minmax(calc(75% - 350px), max-content) auto'
Fail Test setting wrong/invalid values through CSS
Fail Test setting bad JS values: grid-template-columns = 'none auto', grid-template-rows = 'none auto'