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Support extracting gradient data from computed image values for background rendering #123

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Merged
yorkie merged 18 commits into from
Jul 23, 2025
Merged

Support extracting gradient data from computed image values for background rendering #123

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52cf04e
Initial plan
Copilot Jul 23, 2025
9d63499
Implement gradient data extraction API and update web content renderer
Copilot Jul 23, 2025
632a9a4
Add examples and documentation for gradient API usage
Copilot Jul 23, 2025
076233e
Address PR review feedback: remove docs, add HTML fixture, implement …
Copilot Jul 23, 2025
783f8ae
Refactor gradient shader creation and implement proper LengthPercenta…
Copilot Jul 23, 2025
24fd6c8
Add TODO for conic gradient support and fix HTML indentation to use 2…
Copilot Jul 23, 2025
d5528f7
fix build errors
yorkie Jul 23, 2025
a2b8e80
fix build errors
yorkie Jul 23, 2025
98c3b18
Implement color parsing in CSS gradient parser with Color class support
Copilot Jul 23, 2025
6ad256e
fix update
yorkie Jul 23, 2025
98c0eff
Implement ToCss for GenericImage template class
Copilot Jul 23, 2025
5da49de
Implement proper ToCss for GenericGradient template
Copilot Jul 23, 2025
a8cd5cc
Implement ToCss for computed::LengthPercentage class
Copilot Jul 23, 2025
0f37367
update
yorkie Jul 23, 2025
1f175ed
update
yorkie Jul 23, 2025
d986f14
Merge branch 'main' of github.com:M-CreativeLab/jsar-runtime into cop…
yorkie Jul 23, 2025
7194877
update
yorkie Jul 23, 2025
3ac09bd
update
yorkie Jul 23, 2025
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172 changes: 172 additions & 0 deletions fixtures/html/css-gradients.html
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<!DOCTYPE html>
<html>

<head>
<title>CSS Gradients Example</title>
<style>
body {
margin: 0;
padding: 20px;
font-family: Arial, sans-serif;
background-color: #fff;
}

.gradient-group {
display: grid;
border: none;
box-sizing: border-box;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 20px;
padding: 20px;
width: 100%;
}

/* Grid Items */
.gradient-item {
padding: 50px;
transform: translateZ(10px);
}

.gradient-container {
width: 200px;
height: 150px;
margin: 10px;
border: 1px solid #ccc;
display: block;
}

.gradient-label {
text-align: center;
font-size: 25px;
font-weight: bold;
margin-top: 5px;
}

.linear-to-right {
background: linear-gradient(to right, red, blue);
}

.linear-to-left {
background: linear-gradient(to left, red, blue);
}

.linear-to-top {
background: linear-gradient(to top, red, blue);
}

.linear-to-bottom {
background: linear-gradient(to bottom, red, blue);
}

.linear-diagonal {
background: linear-gradient(to bottom right, red, blue);
}

.radial-circle {
background: radial-gradient(circle, red, blue);
}

.radial-ellipse {
background: radial-gradient(ellipse, red, blue);
}

.radial-closest-side {
background: radial-gradient(circle closest-side, red, blue);
}

.radial-farthest-corner {
background: radial-gradient(circle farthest-corner, red, blue);
}

.repeating-linear {
background: repeating-linear-gradient(to right, red 0%, blue 50%);
}

.repeating-radial {
background: repeating-radial-gradient(circle, red 0%, blue 30%);
}

.multi-color {
background: linear-gradient(to right, red, yellow, green, blue);
}
</style>
</head>

<body>
<h1>CSS Gradients Test Examples</h1>

<h2>Linear Gradients</h2>
<div class="gradient-group">
<div class="gradient-item">
<div class="gradient-container linear-to-right"></div>
<div class="gradient-label">to right</div>
</div>

<div class="gradient-item">
<div class="gradient-container linear-to-left"></div>
<div class="gradient-label">to left</div>
</div>

<div class="gradient-item">
<div class="gradient-container linear-to-top"></div>
<div class="gradient-label">to top</div>
</div>

<div class="gradient-item">
<div class="gradient-container linear-to-bottom"></div>
<div class="gradient-label">to bottom</div>
</div>

<div class="gradient-item">
<div class="gradient-container linear-diagonal"></div>
<div class="gradient-label">to bottom right</div>
</div>
</div>

<h2>Radial Gradients</h2>
<div class="gradient-group">
<div class="gradient-item">
<div class="gradient-container radial-circle"></div>
<div class="gradient-label">circle</div>
</div>

<div class="gradient-item">
<div class="gradient-container radial-ellipse"></div>
<div class="gradient-label">ellipse</div>
</div>

<div class="gradient-item">
<div class="gradient-container radial-closest-side"></div>
<div class="gradient-label">closest-side</div>
</div>

<div class="gradient-item">
<div class="gradient-container radial-farthest-corner"></div>
<div class="gradient-label">farthest-corner</div>
</div>
</div>

<h2>Repeating Gradients</h2>
<div class="gradient-group">
<div class="gradient-item">
<div class="gradient-container repeating-linear"></div>
<div class="gradient-label">repeating linear</div>
</div>

<div class="gradient-item">
<div class="gradient-container repeating-radial"></div>
<div class="gradient-label">repeating radial</div>
</div>
</div>

<h2>Multi-color Gradient</h2>
<div class="gradient-group">
<div class="gradient-item">
<div class="gradient-container multi-color"></div>
<div class="gradient-label">multi-color</div>
</div>
</div>

</body>

</html>
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