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https://github.com/RGBCube/serenity
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This function uses our existing hit testing code to determine the topmost element at the given coordinates relative to the viewport.
33 lines
942 B
HTML
33 lines
942 B
HTML
<!DOCTYPE html>
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<html id="root-element">
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<style>
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#large-box {
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position: absolute;
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top: 10px;
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left: 500px;
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width: 100px;
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height: 100px;
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background-color: magenta;
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}
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#small-box {
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position: absolute;
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top: 35px;
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left: 525px;
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width: 50px;
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height: 50px;
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background-color: yellow;
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}
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</style>
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<script src="../include.js"></script>
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<div id="large-box"></div><div id="small-box"></div>
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<script>
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test(() => {
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println(`Negative coordinates return null: ${document.elementFromPoint(-1, -1) === null}`);
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println(`Coordinates outside the viewport return null: ${document.elementFromPoint(99999, 99999) === null}`);
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printElement(document.elementFromPoint(0, 0));
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printElement(document.elementFromPoint(500, 10));
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printElement(document.elementFromPoint(550, 60));
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});
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</script>
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</html>
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