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LibWeb: Implement the align attribute for divs
As specified in section 15.3.3 of the HTML spec.
This commit is contained in:
kamp
Andreas Kling
parent
4ac7c41483
commit
23aae7c7f3
6 changed files with 154 additions and 0 deletions
79
Tests/LibWeb/Layout/expected/div_align.txt
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79
Tests/LibWeb/Layout/expected/div_align.txt
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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BlockContainer <html> at (0,0) content-size 800x637.875 [BFC] children: not-inline
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BlockContainer <body> at (8,8) content-size 784x609.875 children: not-inline
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BlockContainer <div> at (8,8) content-size 784x137.46875 children: not-inline
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BlockContainer <(anonymous)> at (8,8) content-size 784x17.46875 children: inline
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line 0 width: 436.625, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 53, rect: [8,8 436.625x17.46875]
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"This text and the green square are both left aligned:"
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TextNode <#text>
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BlockContainer <div.square> at (28,45.46875) content-size 100x100 children: not-inline
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BlockContainer <(anonymous)> at (8,165.46875) content-size 784x0 children: inline
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TextNode <#text>
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BlockContainer <div> at (8,165.46875) content-size 784x137.46875 children: not-inline
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BlockContainer <(anonymous)> at (8,165.46875) content-size 784x17.46875 children: inline
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line 0 width: 418.6875, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 49, rect: [191,165.46875 418.6875x17.46875]
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"This text and the green square are both centered:"
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TextNode <#text>
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BlockContainer <div.square> at (350,202.9375) content-size 100x100 children: not-inline
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BlockContainer <(anonymous)> at (8,322.9375) content-size 784x0 children: inline
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TextNode <#text>
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BlockContainer <div> at (8,322.9375) content-size 784x137.46875 children: not-inline
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BlockContainer <(anonymous)> at (8,322.9375) content-size 784x17.46875 children: inline
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line 0 width: 447.484375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 54, rect: [345,322.9375 447.484375x17.46875]
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"This text and the green square are both right aligned:"
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TextNode <#text>
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BlockContainer <div.square> at (672,360.40625) content-size 100x100 children: not-inline
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BlockContainer <(anonymous)> at (8,480.40625) content-size 784x0 children: inline
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TextNode <#text>
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BlockContainer <div> at (8,480.40625) content-size 784x137.46875 children: not-inline
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BlockContainer <(anonymous)> at (8,480.40625) content-size 784x17.46875 children: inline
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line 0 width: 512.53125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 4, rect: [8,480.40625 35.5x17.46875]
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"This"
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frag 1 from TextNode start: 4, length: 1, rect: [44,480.40625 8x17.46875]
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" "
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frag 2 from TextNode start: 5, length: 4, rect: [52,480.40625 32.140625x17.46875]
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"text"
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frag 3 from TextNode start: 9, length: 1, rect: [84,480.40625 8x17.46875]
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" "
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frag 4 from TextNode start: 10, length: 2, rect: [92,480.40625 13.90625x17.46875]
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"is"
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frag 5 from TextNode start: 12, length: 1, rect: [106,480.40625 8x17.46875]
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" "
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frag 6 from TextNode start: 13, length: 16, rect: [114,480.40625 102.96875x17.46875]
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"'full-justified'"
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frag 7 from TextNode start: 29, length: 1, rect: [217,480.40625 8x17.46875]
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" "
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frag 8 from TextNode start: 30, length: 3, rect: [225,480.40625 26.8125x17.46875]
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"and"
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frag 9 from TextNode start: 33, length: 1, rect: [251,480.40625 8x17.46875]
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" "
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frag 10 from TextNode start: 34, length: 3, rect: [259,480.40625 24.875x17.46875]
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"the"
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frag 11 from TextNode start: 37, length: 1, rect: [284,480.40625 8x17.46875]
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" "
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frag 12 from TextNode start: 38, length: 5, rect: [292,480.40625 43.4375x17.46875]
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"green"
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frag 13 from TextNode start: 43, length: 1, rect: [336,480.40625 8x17.46875]
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" "
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frag 14 from TextNode start: 44, length: 6, rect: [344,480.40625 57.0625x17.46875]
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"square"
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frag 15 from TextNode start: 50, length: 1, rect: [401,480.40625 8x17.46875]
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" "
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frag 16 from TextNode start: 51, length: 2, rect: [409,480.40625 13.90625x17.46875]
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"is"
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frag 17 from TextNode start: 53, length: 1, rect: [423,480.40625 8x17.46875]
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" "
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frag 18 from TextNode start: 54, length: 4, rect: [431,480.40625 26.25x17.46875]
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"left"
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frag 19 from TextNode start: 58, length: 1, rect: [457,480.40625 8x17.46875]
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" "
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frag 20 from TextNode start: 59, length: 8, rect: [465,480.40625 55.671875x17.46875]
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"aligned:"
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TextNode <#text>
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BlockContainer <div.square> at (28,517.875) content-size 100x100 children: not-inline
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BlockContainer <(anonymous)> at (8,637.875) content-size 784x0 children: inline
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TextNode <#text>
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27
Tests/LibWeb/Layout/expected/div_align_nested.txt
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27
Tests/LibWeb/Layout/expected/div_align_nested.txt
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@ -0,0 +1,27 @@
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
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BlockContainer <body> at (8,8) content-size 784x252.875 children: not-inline
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BlockContainer <div> at (8,8) content-size 784x252.875 children: not-inline
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BlockContainer <(anonymous)> at (8,8) content-size 784x17.46875 children: inline
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line 0 width: 447.484375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 54, rect: [345,8 447.484375x17.46875]
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"This text and the green square are both right aligned:"
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TextNode <#text>
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BlockContainer <div.square> at (692,25.46875) content-size 100x100 children: not-inline
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BlockContainer <(anonymous)> at (8,125.46875) content-size 784x0 children: inline
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TextNode <#text>
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BlockContainer <div> at (8,125.46875) content-size 784x135.40625 children: not-inline
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BlockContainer <(anonymous)> at (8,125.46875) content-size 784x35.40625 children: inline
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line 0 width: 711.4375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 1, length: 87, rect: [8,125.46875 711.4375x17.46875]
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"This text and the green square are both left aligned despite being nested in a div with"
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line 1 width: 94.296875, height: 17.9375, bottom: 35.40625, baseline: 13.53125
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frag 0 from TextNode start: 89, length: 14, rect: [8,142.46875 94.296875x17.46875]
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"align="right":"
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TextNode <#text>
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BlockContainer <div.square> at (8,160.875) content-size 100x100 children: inline
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TextNode <#text>
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BlockContainer <(anonymous)> at (8,260.875) content-size 784x0 children: inline
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TextNode <#text>
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BlockContainer <(anonymous)> at (8,260.875) content-size 784x0 children: inline
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TextNode <#text>
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13
Tests/LibWeb/Layout/input/div_align.html
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13
Tests/LibWeb/Layout/input/div_align.html
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@ -0,0 +1,13 @@
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<style>
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.square {
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width: 100px;
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height: 100px;
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background-color:green;
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margin: 20px;
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}
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</style>
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<div align="left">This text and the green square are both left aligned: <div class="square"></div></div>
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<div align="center">This text and the green square are both centered: <div class="square"></div></div>
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<div align="right">This text and the green square are both right aligned: <div class="square"></div></div>
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<div align="justify">This text is 'full-justified' and the green square is left aligned: <div class="square"></div></div>
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15
Tests/LibWeb/Layout/input/div_align_nested.html
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15
Tests/LibWeb/Layout/input/div_align_nested.html
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@ -0,0 +1,15 @@
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<style>
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.square {
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width: 100px;
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height: 100px;
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background-color:green
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}
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</style>
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<div align="right">This text and the green square are both right aligned: <div class="square"></div>
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<div align="left">
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This text and the green square are both left aligned despite being nested in a div with align="right":
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<div class="square"/>
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</div>
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</div>
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@ -5,6 +5,8 @@
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*/
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/StyleProperties.h>
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#include <LibWeb/CSS/StyleValues/IdentifierStyleValue.h>
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#include <LibWeb/HTML/HTMLDivElement.h>
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namespace Web::HTML {
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@ -16,6 +18,23 @@ HTMLDivElement::HTMLDivElement(DOM::Document& document, DOM::QualifiedName quali
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HTMLDivElement::~HTMLDivElement() = default;
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// https://html.spec.whatwg.org/multipage/rendering.html#flow-content-3
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void HTMLDivElement::apply_presentational_hints(CSS::StyleProperties& style) const
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{
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for_each_attribute([&](auto& name, auto& value) {
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if (name.equals_ignoring_ascii_case("align"sv)) {
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if (value.equals_ignoring_ascii_case("left"sv))
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style.set_property(CSS::PropertyID::TextAlign, CSS::IdentifierStyleValue::create(CSS::ValueID::LibwebLeft).release_value_but_fixme_should_propagate_errors());
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else if (value.equals_ignoring_ascii_case("right"sv))
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style.set_property(CSS::PropertyID::TextAlign, CSS::IdentifierStyleValue::create(CSS::ValueID::LibwebRight).release_value_but_fixme_should_propagate_errors());
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else if (value.equals_ignoring_ascii_case("center"sv))
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style.set_property(CSS::PropertyID::TextAlign, CSS::IdentifierStyleValue::create(CSS::ValueID::LibwebCenter).release_value_but_fixme_should_propagate_errors());
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else if (value.equals_ignoring_ascii_case("justify"sv))
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style.set_property(CSS::PropertyID::TextAlign, CSS::IdentifierStyleValue::create(CSS::ValueID::Justify).release_value_but_fixme_should_propagate_errors());
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}
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});
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}
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JS::ThrowCompletionOr<void> HTMLDivElement::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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@ -25,6 +25,7 @@ protected:
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private:
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void apply_presentational_hints(CSS::StyleProperties&) const override;
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};
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}
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