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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-align.tentative.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">
<link rel="stylesheet" href="/html/canvas/resources/canvas-grid-reftest.css">
<link rel="match" href="2d.text.measure.text-clusters-rendering-align.tentative-expected.html">
<title>Canvas test: 2d.text.measure.text-clusters-rendering-align.tentative</title>
<h1>2d.text.measure.text-clusters-rendering-align.tentative</h1>
<p class="desc">Test that fillTextCluster() correctly positions the text, taking into account the textAlign from the context at the time the text was measured.</p>
<div class="grid-container" style="--grid-width: 3">
<span>
<div>ctx_align_left</div>
<canvas class="grid-cell-content" id="canvas0" width="250" height="43">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script type="module">
const canvas = new OffscreenCanvas(250, 43);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ☺️ א';
const x = canvas.width / 2;
const y = canvas.height / 2;
ctx.textAlign = 'left';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
// Rendering all clusters with the same (x, y) parameters must be
// equivalent to a fillText() call at (x, y).
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, x, y);
}
const outputCanvas = document.getElementById("canvas0");
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(canvas, 0, 0);
</script>
</span>
<span>
<div>ctx_align_center</div>
<canvas class="grid-cell-content" id="canvas1" width="250" height="43">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script type="module">
const canvas = new OffscreenCanvas(250, 43);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ☺️ א';
const x = canvas.width / 2;
const y = canvas.height / 2;
ctx.textAlign = 'center';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
// Rendering all clusters with the same (x, y) parameters must be
// equivalent to a fillText() call at (x, y).
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, x, y);
}
const outputCanvas = document.getElementById("canvas1");
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(canvas, 0, 0);
</script>
</span>
<span>
<div>ctx_align_right</div>
<canvas class="grid-cell-content" id="canvas2" width="250" height="43">
<p class="fallback">FAIL (fallback content)</p>
</canvas>
<script type="module">
const canvas = new OffscreenCanvas(250, 43);
const ctx = canvas.getContext('2d');
ctx.font = '20px serif';
const text = 'Test ☺️ א';
const x = canvas.width / 2;
const y = canvas.height / 2;
ctx.textAlign = 'right';
let tm = ctx.measureText(text);
const clusters = tm.getTextClusters();
// Rendering all clusters with the same (x, y) parameters must be
// equivalent to a fillText() call at (x, y).
for (const cluster of clusters) {
ctx.fillTextCluster(cluster, x, y);
}
const outputCanvas = document.getElementById("canvas2");
const outputCtx = outputCanvas.getContext('2d');
outputCtx.drawImage(canvas, 0, 0);
</script>
</span>
</div>