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Implement HTMLCanvasElement.toBlob (#34938)

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This refactors some of the code that is shared with toDataURL, and
updates the webidl definition to match the current spec (using a default
value for the mime type).

Signed-off-by: webbeef <me@webbeef.org>
This commit is contained in:
webbeef 2025-01-10 11:04:42 -08:00 • committed by GitHub
parent 9aaa6934b7
commit 44d1e2ae0d
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GPG key ID: B5690EEEBB952194
13 changed files with 206 additions and 130 deletions
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3
tests/wpt/meta/html/canvas/element/wide-gamut-canvas/2d.color.space.p3.toBlob.p3.canvas.html.ini vendored
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@ -1,3 +0,0 @@
[2d.color.space.p3.toBlob.p3.canvas.html]
[test if toblob returns p3 data from p3 color space canvas]
expected: FAIL

3
tests/wpt/meta/html/canvas/element/wide-gamut-canvas/2d.color.space.p3.toBlob.with.putImageData.html.ini vendored
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@ -1,3 +0,0 @@
[2d.color.space.p3.toBlob.with.putImageData.html]
[Use putImageData to put some p3 data in canvas and test if toBlob returns the same data]
expected: FAIL

9
tests/wpt/meta/html/dom/idlharness.https.html.ini vendored
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@ -7915,18 +7915,9 @@
[HTMLSlotElement interface: calling assign((Element or Text)...) on document.createElement("slot") with too few arguments must throw TypeError]
expected: FAIL
[HTMLCanvasElement interface: operation toBlob(BlobCallback, optional DOMString, optional any)]
expected: FAIL
[HTMLCanvasElement interface: operation transferControlToOffscreen()]
expected: FAIL
[HTMLCanvasElement interface: document.createElement("canvas") must inherit property "toBlob(BlobCallback, optional DOMString, optional any)" with the proper type]
expected: FAIL
[HTMLCanvasElement interface: calling toBlob(BlobCallback, optional DOMString, optional any) on document.createElement("canvas") with too few arguments must throw TypeError]
expected: FAIL
[HTMLCanvasElement interface: document.createElement("canvas") must inherit property "transferControlToOffscreen()" with the proper type]
expected: FAIL

3
tests/wpt/meta/html/semantics/embedded-content/the-canvas-element/toBlob-cross-realm-callback-report-exception.html.ini vendored
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@ -1,3 +0,0 @@
[toBlob-cross-realm-callback-report-exception.html]
[toBlob() reports the exception from its callback in the callback's global object]
expected: FAIL

3
tests/wpt/meta/html/semantics/embedded-content/the-canvas-element/toBlob.jpeg.html.ini vendored
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@ -1,3 +0,0 @@
[toBlob.jpeg.html]
[toBlob with image/jpeg returns a JPEG Blob]
expected: FAIL

3
tests/wpt/meta/html/semantics/embedded-content/the-canvas-element/toBlob.null.html.ini vendored
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@ -1,3 +0,0 @@
[toBlob.null.html]
[toBlob with zero dimension returns a null Blob]
expected: FAIL

3
tests/wpt/meta/html/semantics/embedded-content/the-canvas-element/toBlob.png.html.ini vendored
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@ -1,3 +0,0 @@
[toBlob.png.html]
[toBlob with image/png returns a PNG Blob]
expected: FAIL

4
tests/wpt/meta/html/semantics/embedded-content/the-img-element/currentSrc-blob-cache.html.ini vendored
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@ -1,4 +0,0 @@
[currentSrc-blob-cache.html]
[currentSrc is right even if underlying image is a shared blob]
expected: FAIL

7
tests/wpt/meta/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/tasks.window.js.ini vendored
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@ -1,7 +0,0 @@
[tasks.window.html]
[document.open() and tasks (canvas.toBlob())]
expected: FAIL
[tasks without document.open() (canvas.toBlob())]
expected: FAIL