`Stylist` contains separate hashmaps for important and normal declarations,
but typically a given block only contains declarations of one importance.
Before this commit, there is an optimization where
a `PropertyDeclarationBlock` is only inserted in the corresponding map
if it has a non-zero number of declaration of a given importance.
With CSSOM, `PropertyDeclarationBlock` is gonna have interior mutability:
the importance (priority) of a declaration could change.
This optimization would become incorrect when the block is missing
in a hashmap where it should be.
This commits removes the original optimization, and replaces it with
a slightly weaker one: if a block doesn’t have any declaration
with the importance we’re cascading for, skip selector matching.
a script query.
This will, rather unfortunately, mean that we might repaint two times if we've
deferred a paint, then get an out-of-band reflow. Still seemed better than not
suppressing paints at all.
Fixes#13131
style: Allow calc in media queries.
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Fixes https://bugzilla.mozilla.org/show_bug.cgi?id=1290228
No tests have been added yet, I expect wpt to catch something, otherwise I'll write/import others.
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Html option element.form#13111
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Add HTMLOptionElement form attribute support
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Fix debug assertion introduced in #13108 by me.
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I'm stupid, and when I did the last moving-the-code-around, I failed miserably
to double-check it in a debug build.
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Fix canvas image tests when using webrender.
When webrender is enabled, image decoding doesn't pre-multiply by
alpha, but the canvas code expects the image data to be
pre-multiplied form.
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style: Don't loop over all the set of dependencies always.
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Instead, divide which kind of dependencies could match a mutation. This cuts down incremental restyle time in BrowserHTML quite a bit.
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The dependency count is not at all minor, and this way we avoid looping
through all of them in the common cases, mainly either changing state, or
attributes.
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The dependency count is not at all minor, and this way we avoid looping
through all of them in the common cases, mainly either changing state, or
attributes.
Handle 3- and 4- valued <position>s in style
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This is first part of fix#12690 and covers just specified style part for now.
r? @Manishearth
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webgl: Add isProgram() support.
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webgl: Add isProgram() support.
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There's one failure still, where a deleted program should still be
considered to be a program until it's unbound. However, I recently
made it so that we unbind at delete time, and we may need to partially
back that change out.
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webgl: Do validation of glScissor/glViewport(width, height) on the DOM side
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webgl: Do validation of glScissor/glViewport(width, height) on the DOM side
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Avoids testcase CRASHes due to unexpected GL errors.
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There's one failure still, where a deleted program should still be
considered to be a program until it's unbound. However, I recently
made it so that we unbind at delete time, and we may need to partially
back that change out.
Fix root flow's size at the browser window's size
When `<body>` needs to calculate its size based on `<html>`'s size, that should be the size of the browser window itself.
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