Support empty strings as the repeat argument (CreatePattern)
According to the third step in the specification [1], createPattern
should let the repetition argument be "repeat" when it is the empty
string.
The code in CanvasRenderingContext2D::CreatePattern did not implement
this step and instead threw a SyntaxError exception when an empty
string was supplied as the repetition argument.
Fixes#9079.
[1] https://html.spec.whatwg.org/multipage/#dom-context-2d-createpattern
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Add 5 different task source channels
This is **not** complete. I really need feedback right away since I felt that the direction I'm heading is very wrong.
Partial #7959.
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According to the third step in the specification [1], createPattern
should let the repetition argument be "repeat" when it is the empty
string.
The code in CanvasRenderingContext2D::CreatePattern did not implement
this step and instead threw a SyntaxError exception when an empty
string was supplied as the repetition argument.
Fixes#9079.
[1] https://html.spec.whatwg.org/multipage/#dom-context-2d-createpattern
Enabled use of FontFamily enum type
https://github.com/servo/servo/issues/8371
In addition to replacing loose strings with the FontFamily enum in `font_cache_task.rs`, I also centralized the add_generic_font calls into one single function. If centralizing into one function is not desired or if anything else needs to be changed, please let me know.
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Enable Pattern variant of CanvasFillOrStrokeStyle
This is a rebase of #8104, with a test added that exposes pre-existing problems in the canvas code for dealing with patterns.
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Implement non-zero dimension attribute parsing
Fixes#8445
The only attributes I found that we have implemented that uses non-zero
dimenion attributes:
* `width` for `<td>` and `<th>` (table cells)
* `width` for `<table>`
I updated these implementations to use the new non-zero dimension
attribute parsing and added associated regression tests.
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This patch does a number of things, unfortunately all at once:
* Hoists a large subset of the layout wrapper functionality into the style system.
* Merges TElementAttributes into the newly-created TElement.
* Reorganizes LayoutData by style vs layout, and removes LayoutDataShared.
* Simplifies the API for borrowing style/layout data.
There's still more to do to make the style system usable standalone, but
this is a good start.
Properly propagate changes when range or trees are mutated
Does the same thing as #6817, but storing Range instances directly in their start and end containers.
Cc @dzbarsky
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Fixes#8445
The only attributes I found that we have implemented that uses non-zero
dimenion attributes:
* `width` for `<td>` and `<th>` (table cells)
* `width` for `<table>`
I updated these implementations to use the new non-zero dimension
attribute parsing and added associated regression tests.
