| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ |
| |
| // https://html.spec.whatwg.org/multipage/#textmetrics |
| [Exposed=(PaintWorklet, Window, Worker), Pref="dom_canvas_text_enabled"] |
| interface TextMetrics { |
| // x-direction |
| readonly attribute double width; // advance width |
| readonly attribute double actualBoundingBoxLeft; |
| readonly attribute double actualBoundingBoxRight; |
| |
| // y-direction |
| readonly attribute double fontBoundingBoxAscent; |
| readonly attribute double fontBoundingBoxDescent; |
| readonly attribute double actualBoundingBoxAscent; |
| readonly attribute double actualBoundingBoxDescent; |
| readonly attribute double emHeightAscent; |
| readonly attribute double emHeightDescent; |
| readonly attribute double hangingBaseline; |
| readonly attribute double alphabeticBaseline; |
| readonly attribute double ideographicBaseline; |
| }; |
