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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/text/2d.text.measure.text-clusters-rendering-drawing-styles-change.tentative.w.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<meta charset="UTF-8">
<html class="reftest-wait">
<link rel="match" href="2d.text.measure.text-clusters-rendering-drawing-styles-change.tentative-expected.html">
<title>Canvas test: 2d.text.measure.text-clusters-rendering-drawing-styles-change.tentative</title>
<h1 style="font-size: 20px;">2d.text.measure.text-clusters-rendering-drawing-styles-change.tentative</h1>
<p class="desc">Test that fillTextCluster() renders using the drawing styles as they were when `ctx.measureText()` was called, regardless of any changes in the context since.</p>
<script>pending_tests = 4;</script>
<div style="display: grid; grid-gap: 4px;
grid-template-columns: repeat(2, max-content);
font-size: 13px; text-align: center;">
<span>
<div>letter_spacing</div>
<canvas id="canvas0" width="250" height="80" style="outline: 1px solid">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id="myWorker0" type="text/worker">
self.onmessage = function(e) {
const canvas = new OffscreenCanvas(250, 80);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ♦️ find';
ctx.letterSpacing = '2px';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
ctx.letterSpacing = '6px';
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, 10, 25);
}
ctx.fillText(text, 10, 50);
const bitmap = canvas.transferToImageBitmap();
self.postMessage(bitmap, bitmap);
};
</script>
<script type="module">
const blob = new Blob([document.getElementById('myWorker0').textContent]);
const worker = new Worker(URL.createObjectURL(blob));
worker.addEventListener('message', msg => {
const outputCanvas = document.getElementById('canvas0');
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(msg.data, 0, 0);
if (--pending_tests == 0) {
document.documentElement.classList.remove('reftest-wait');
}
});
worker.postMessage(null);
</script>
</span>
<span>
<div>word_spacing</div>
<canvas id="canvas1" width="250" height="80" style="outline: 1px solid">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id="myWorker1" type="text/worker">
self.onmessage = function(e) {
const canvas = new OffscreenCanvas(250, 80);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ♦️ find';
ctx.wordSpacing = '2px';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
ctx.wordSpacing = '10px';
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, 10, 25);
}
ctx.fillText(text, 10, 50);
const bitmap = canvas.transferToImageBitmap();
self.postMessage(bitmap, bitmap);
};
</script>
<script type="module">
const blob = new Blob([document.getElementById('myWorker1').textContent]);
const worker = new Worker(URL.createObjectURL(blob));
worker.addEventListener('message', msg => {
const outputCanvas = document.getElementById('canvas1');
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(msg.data, 0, 0);
if (--pending_tests == 0) {
document.documentElement.classList.remove('reftest-wait');
}
});
worker.postMessage(null);
</script>
</span>
<span>
<div>font_kerning</div>
<canvas id="canvas2" width="250" height="80" style="outline: 1px solid">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id="myWorker2" type="text/worker">
self.onmessage = function(e) {
const canvas = new OffscreenCanvas(250, 80);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ♦️ find';
ctx.fontKerning = 'none';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
ctx.fontKerning = 'normal';
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, 10, 25);
}
ctx.fillText(text, 10, 50);
const bitmap = canvas.transferToImageBitmap();
self.postMessage(bitmap, bitmap);
};
</script>
<script type="module">
const blob = new Blob([document.getElementById('myWorker2').textContent]);
const worker = new Worker(URL.createObjectURL(blob));
worker.addEventListener('message', msg => {
const outputCanvas = document.getElementById('canvas2');
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(msg.data, 0, 0);
if (--pending_tests == 0) {
document.documentElement.classList.remove('reftest-wait');
}
});
worker.postMessage(null);
</script>
</span>
<span>
<div>font_variant_caps</div>
<canvas id="canvas3" width="250" height="80" style="outline: 1px solid">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script id="myWorker3" type="text/worker">
self.onmessage = function(e) {
const canvas = new OffscreenCanvas(250, 80);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ♦️ find';
ctx.fontVariantCaps = 'small-caps';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
ctx.fontVariantCaps = 'all-small-caps';
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, 10, 25);
}
ctx.fillText(text, 10, 50);
const bitmap = canvas.transferToImageBitmap();
self.postMessage(bitmap, bitmap);
};
</script>
<script type="module">
const blob = new Blob([document.getElementById('myWorker3').textContent]);
const worker = new Worker(URL.createObjectURL(blob));
worker.addEventListener('message', msg => {
const outputCanvas = document.getElementById('canvas3');
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(msg.data, 0, 0);
if (--pending_tests == 0) {
document.documentElement.classList.remove('reftest-wait');
}
});
worker.postMessage(null);
</script>
</span>
</div>
</html>