Prefer length and percentage for word spacing
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The goal is to make use of `LengthOrPercentage` for word spacing in `ShapingOptions`, but since it makes use of `f32` which doesn't implement `Hash`, we're going for `NotNan<f32>` from [ordered-float](https://github.com/reem/rust-ordered-float/), which supports hashing. Instead of implementing `Hash` for `LengthOrPercentage` and thereby the inner types like `CSSFloat`, `CalcLengthOrPercentage`, etc., we convert it to `(Au, NotNan<f32>)`.
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style: Add support for parsing and serialization of <basic-shape>s
Still WIP: I still need to use this somewhere and make serialization minimal. I'm not sure if I should do either in this PR.
The only other browser that handles basic shapes doesn't serialize correctly either (https://bugzilla.mozilla.org/show_bug.cgi?id=1290864), so that's not something we need to get done now.
As far as using this somewhere, I have the following options:
- Merge this now, work on using it in stylo in a followup.
- Just write extensive unit tests for parsing/serialization for now (stylo in a followup)
- Use this for clip-path in stylo only (which I intend to do anyway, just not sure if I should do it in this PR)
- Use this for clip-path in Servo (I'd rather not do this; this would be a huge change requiring a lot more layout knowledge than I currently have)
Thoughts? Review? @SimonSapin @bholley
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Add support for background-position in geckolib.
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r? @Manishearth
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Let textarea wrap lines
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1. Change textarea's style from white-space: pre to white-space: pre-wrap.
2. Display insertion point when a line is wrapped.
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Blockify elements in a flex container
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The is one of my pull requests that implement basic flexible box layout.
As the spec stated in https://drafts.csswg.org/css-flexbox/#flex-items ,
A inline-level child of a flex container should be converted to its block equivalent, according to CSS2.1 § 9.7.
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layout: Clear non-inherited properties on anonymous block
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This is one of my pull requests that imlement basic flexible box layout.
This pull request adds a `modify_style_for_anonymous_flow()` function to use initial values for non-inherited properties and parent values for inherited properties as the flow style. It also set border and outline to zero and set the display property from the parameter. This function may also be reused to modify style of anonymous table object in the future.
Part of code comes from `cascade_anonymous()` from @SimonSapin .
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Add a modify_style_for_anonymous_flow() function to use initial values
for non-inherited properties and parent values for inherited properties
as the block style. It also set border and outline to zero and set the
display property from the parameter.
Rotate animation
Add rotation interpolation code for the case where their direction vectors are equal.
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- [X] These changes fix#11808 (github issue number if applicable).
- [X] There are tests for these changes
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It seems python in msys2 has some weird behavior. For __file__, it
returns a string which uses windows-style separator '\', however,
os.path.dirname only recognizes the unix-style separator '/', and
consequently, the path of Mako is not added properly.
Support 'flex' and 'flex-flow' shorthand properties
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Support the `flex` and `flex-flow` shorthand properties in
servo. Currently they are marked as experimental, so they are added to
`__dir__.ini`.
Thanks SimonSapin and jdm for help :)
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