зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1639963 - Define the default size for replaced elements. r=dholbert
Differential Revision: https://phabricator.services.mozilla.com/D81006
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@ -28,4 +28,10 @@
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#define NS_INTRINSIC_ISIZE_UNKNOWN nscoord_MIN
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// The fallback size of width is 300px and the aspect-ratio is 2:1, based on the
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// spec definition in CSS2 section 10.3.2:
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// https://drafts.csswg.org/css2/visudet.html#inline-replaced-width
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#define REPLACED_ELEM_FALLBACK_PX_WIDTH 300
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#define REPLACED_ELEM_FALLBACK_PX_HEIGHT 150
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#endif // LayoutConstants_h___
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@ -624,9 +624,11 @@ IntrinsicSize nsSubDocumentFrame::GetIntrinsicSize() {
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return {}; // XUL <iframe> and <browser> have no useful intrinsic size
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}
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// We must be an HTML <iframe>. Default to size of 300px x 150px, for IE
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// compat (and per CSS2.1 draft)
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return IntrinsicSize(CSSPixel::ToAppUnits(300), CSSPixel::ToAppUnits(150));
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// We must be an HTML <iframe>. Default to size of
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// REPLACED_ELEM_FALLBACK_PX_WIDTH x REPLACED_ELEM_FALLBACK_PX_HEIGHT (i.e.
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// 300px x 150px), for IE compat (and per CSS2.1 draft)
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return IntrinsicSize(CSSPixel::ToAppUnits(REPLACED_ELEM_FALLBACK_PX_WIDTH),
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CSSPixel::ToAppUnits(REPLACED_ELEM_FALLBACK_PX_HEIGHT));
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}
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/* virtual */
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@ -671,8 +671,8 @@ nsSize nsVideoFrame::GetVideoIntrinsicSize(gfxContext* aRenderingContext) {
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return nsSize(0, 0);
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}
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// Defaulting size to 300x150 if no size given.
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nsIntSize size(300, 150);
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nsIntSize size(REPLACED_ELEM_FALLBACK_PX_WIDTH,
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REPLACED_ELEM_FALLBACK_PX_HEIGHT);
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HTMLVideoElement* element = static_cast<HTMLVideoElement*>(GetContent());
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if (NS_FAILED(element->GetVideoSize(&size)) && ShouldDisplayPoster()) {
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