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LibWeb: Make sure float: left boxes get pushed down if they can't fit

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This commit is contained in:
Andreas Kling 2023-03-15 10:22:37 +01:00
parent 52e2095a3f
commit db545b51ef
Notes: sideshowbarker 2024-07-17 22:55:25 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/db545b51ef
5 changed files with 110 additions and 9 deletions
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10
Tests/LibWeb/Layout/expected/bfc-float-left-break-vertically-2.txt Normal file
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@ -0,0 +1,10 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x150 children: not-inline
BlockContainer <body> at (0,0) content-size 200x0 children: not-inline
BlockContainer <ul> at (0,0) content-size 200x0 children: inline
BlockContainer <div.red> at (0,0) content-size 150x50 floating children: not-inline
BlockContainer <div.green> at (0,50) content-size 150x50 floating children: not-inline
TextNode <#text>
BlockContainer <div.orange> at (0,100) content-size 150x50 floating children: not-inline
BlockContainer <(anonymous)> at (0,0) content-size 200x0 children: inline
TextNode <#text>

18
Tests/LibWeb/Layout/expected/bfc-float-left-break-vertically.txt Normal file
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@ -0,0 +1,18 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (1,1) content-size 798x107 children: not-inline
BlockContainer <(anonymous)> at (1,1) content-size 798x0 children: inline
TextNode <#text>
BlockContainer <body> at (2,2) content-size 400x2 children: not-inline
BlockContainer <(anonymous)> at (2,2) content-size 400x0 children: inline
TextNode <#text>
BlockContainer <div.ul> at (3,3) content-size 398x0 children: inline
TextNode <#text>
BlockContainer <div.yellow> at (4,4) content-size 60x50 floating children: not-inline
TextNode <#text>
BlockContainer <div.orange> at (66,4) content-size 250x50 floating children: not-inline
TextNode <#text>
BlockContainer <(anonymous)> at (2,4) content-size 400x0 children: inline
TextNode <#text>
BlockContainer <div.green> at (3,57) content-size 100x50 floating children: not-inline
BlockContainer <(anonymous)> at (2,4) content-size 400x0 children: inline
TextNode <#text>

32
Tests/LibWeb/Layout/input/bfc-float-left-break-vertically-2.html Normal file
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@ -0,0 +1,32 @@
<!DOCTYPE html><html><head><style>
* {
margin: 0;
padding: 0;
}
body {
width: 200px;
}
div {
float: left;
width: 150px;
height: 50px;
}
.red {
background: red;
}
.green {
background: green;
}
.blue {
background: blue;
}
.orange {
background: orange;
}
</style></head><body><ul><div class="red"></div><div class="green"></div> </ul><div class="orange"></div>

44
Tests/LibWeb/Layout/input/bfc-float-left-break-vertically.html Normal file
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@ -0,0 +1,44 @@
<!DOCTYPE html>
<html>
<head>
<style>
* {
border: 1px solid black !important;
margin: 0;
padding: 0;
}
body {
width: 400px;
}
.yellow {
width: 60px;
height: 50px;
float: left;
background: yellow;
}
.orange {
width: 250px;
height: 50px;
float: left;
background: orange;
}
.green {
background: lime;
width: 100px;
height: 50px;
float: left;
}
</style>
</head>
<body>
<div class="ul">
<div class="yellow"></div>
<div class="orange"></div>
</div>
<div class="green"></div>
</body>
</html>

15
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
View File

@ -785,20 +785,17 @@ void BlockFormattingContext::layout_floating_box(Box const& box, BlockContainer
}
did_touch_preceding_float = true;
if (!fits_next_to_preceding_float)
continue;
break;
offset_from_edge = tentative_offset_from_edge;
did_place_next_to_preceding_float = true;
break;
}
if (!did_touch_preceding_float) {
// This box does not touch another floating box, go all the way to the edge.
float_to_edge();
// Also, forget all previous boxes floated to this side while since they're no longer relevant.
side_data.clear();
} else if (!did_place_next_to_preceding_float) {
// We ran out of horizontal space on this "float line", and need to break.
if (!did_touch_preceding_float || !did_place_next_to_preceding_float) {
// One of two things happened:
// - This box does not touch another floating box.
// - We ran out of horizontal space on this "float line", and need to break.
// Either way, we float this box all the way to the edge.
float_to_edge();
CSSPixels lowest_margin_edge = 0;
for (auto const& box : side_data.current_boxes) {