File: font-metrics-api.idl

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// GENERATED CONTENT - DO NOT EDIT
// Content was automatically extracted by Reffy into webref
// (https://github.com/w3c/webref)
// Source: Font Metrics API Level 1 (https://drafts.css-houdini.org/font-metrics-api-1/)

partial interface Document {
    FontMetrics measureElement(Element element);
    FontMetrics measureText(DOMString text, StylePropertyMapReadOnly styleMap);
};

[Exposed=Window]
interface FontMetrics {
  readonly attribute double width;
  readonly attribute FrozenArray<double> advances;

  readonly attribute double boundingBoxLeft;
  readonly attribute double boundingBoxRight;

  readonly attribute double height;
  readonly attribute double emHeightAscent;
  readonly attribute double emHeightDescent;
  readonly attribute double boundingBoxAscent;
  readonly attribute double boundingBoxDescent;
  readonly attribute double fontBoundingBoxAscent;
  readonly attribute double fontBoundingBoxDescent;

  readonly attribute Baseline dominantBaseline;
  readonly attribute FrozenArray<Baseline> baselines;
  readonly attribute FrozenArray<Font> fonts;
};

[Exposed=Window]
interface Baseline {
  readonly attribute DOMString name;
  readonly attribute double value;
};

[Exposed=Window]
interface Font {
  readonly attribute DOMString name;
  readonly attribute unsigned long glyphsRendered;
};