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45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* The origin of this IDL file is
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* https://html.spec.whatwg.org/multipage/webappapis.html#images
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*/
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typedef (HTMLImageElement or
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HTMLVideoElement or
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HTMLCanvasElement or
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Blob or
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ImageData or
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CanvasRenderingContext2D or
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ImageBitmap) ImageBitmapSource;
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[Exposed=(Window,Worker)]
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interface ImageBitmap {
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[Constant]
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readonly attribute unsigned long width;
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[Constant]
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readonly attribute unsigned long height;
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};
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// It's crucial that there be a way to explicitly dispose of ImageBitmaps
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// since they refer to potentially large graphics resources. Some uses
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// of this API proposal will result in repeated allocations of ImageBitmaps,
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// and garbage collection will not reliably reclaim them quickly enough.
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// Here we reuse close(), which also exists on another Transferable type,
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// MessagePort. Potentially, all Transferable types should inherit from a
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// new interface type "Closeable".
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partial interface ImageBitmap {
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// Dispose of all graphical resources associated with this ImageBitmap.
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void close();
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};
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[NoInterfaceObject, Exposed=(Window,Worker)]
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interface ImageBitmapFactories {
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[Throws]
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Promise<ImageBitmap> createImageBitmap(ImageBitmapSource aImage);
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[Throws]
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Promise<ImageBitmap> createImageBitmap(ImageBitmapSource aImage, long aSx, long aSy, long aSw, long aSh);
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};
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