Stop iframes from including their ancestors
An iframe that included itself would just keep loading until running out of resources; the spec includes protection against that, and now Servo follows (some of) the spec about it.
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Add initial support for transforms to layout_2020
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refactor: rename XR to XRSystem
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This PR renames XR to XRSystem.
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Layout viewer for layout 2020
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This PR makes layout 2020 dump the box and fragment tree states into json files that can be visualized with the layout viewer tool. This tool has not much functionality other than displaying these trees and allowing to inspect each node additional data, so there is a lot of room for improvements. Some ideas for follow-ups:
- Make the tool create and display diffs between tree states.
- Actually allow creating new debug scopes during box tree and fragment tree construction. Right now there is a single scope created after constructing both trees, which is not ideal as it only allows looking at the reflow result.
- Right now an independent JSON file is created per reflow. It would be nice to unify the data obtained on each reflow on a single JSON, so diffs between reflows can be displayed as well.
- Dump and display the DOM tree. Link boxes to DOM nodes.
- #23339
Leak message ports in Dom, until they are closed
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FIX#25461FIX#24810FIX#24488
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Use new and new_inherited in messagechannel
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Use common DOM constructor idioms in `MessageChannel`. Also, remove the falliable from the result, since that seems to match the spec better https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messagechannel
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Add support for WebGL2 getFramebufferAttachmentParameter
Implements the WebGL2 variant of `getFramebufferAttachmentParameter` and the related parameter checks.
See: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.4
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Depends on #25784
cc @jdm @zakorgy
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Delay reftest screenshot while WR frame is rendering
This PR addresses the theory that #24726 occurs when WR is performing an async frame render and the reftest screenshot decides it's time to synchronously read the framebuffer. If there have not been any completed frames rendered yet, that would yield the page background colour.
The changes in this PR introduce an additional layer of synchronization - the compositor stores an AtomicBool value that indicates whether we know that a WR frame has started rendering, which is set to true when an IPC request from layout that submits a new display list is received. This bool is set to false when WR notifies us that a frame has been rendered. The screenshot code refuses to take a screenshot if the bool is true, causing us to delay taking a screenshot until there is no frame pending.
Add support for WebGL2 framebuffer attachments
Adds an initial implementation for the framebuffer attachments introduced with WebGL2 and the related enums and constrains checks.
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Depends on #25765.
cc @jdm @zakorgy
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Hide window
Stop animations when the window is hidden.
Tested with both Immersive Mode, and regular window being minimized.
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Implement GPUComputePassEncoder functions
Implement the `dispatch`, `endPass`, `setBindGroup`, `setPipeline` functions of `GPUComputePassEncoder`.
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cc @kvark @jdm @zakorgy
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Take origin from current window instead of creating a new one in event of reflow
Everytime a new `LayoutContext` was created, it created a new origin which
caused endless stream of image loads to occur in case of reflow. The reason
for this was that the existing image, although cached successfully, was not
used because the entry in hashmap did not match because of different(new)
origin.
This is solved by storing the origin of a window in enum `ScriptReflow` and
used in creating new `LayoutContext` in case of reflow.
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r?@jdm
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Always pass InRealm to GlobalScope::from_context to avoid getting a null global
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Add layout_2020 support for filters and mix-blend-mode
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Add initial support for WebGL2 read framebuffer
Adds support for binding to the read framebuffer slot and querying its status.
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Depends on #25752
cc @jdm @zakorgy
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Add support for WebGL2 `MAX_COLOR_ATTACHMENTS` and `MAX_DRAW_BUFFERS`
Adds support for using the WebGL2 enums `MAX_COLOR_ATTACHMENTS` and `MAX_DRAW_BUFFERS` with `GetParameter`.
See https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.2
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cc @jdm @zakorgy
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This allows rendering stacking context content in the proper order. We
also need to add a new pseudo stacking context for atomic inlines in
order to preserve proper rendering order in some cases.
Add initial support for stacking contexts to layout_2020
These changes add initial support for stacking contexts, enabling some parts of z-index to work properly.
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This adds very rudimentary support for paint order in stacking context.
In particular z-index is now handled properly, apart from issues with
hoisted fragments.
Everytime a new LayoutContext was created, it created a new origin which
caused endless stream of image loads to occur in case of reflow. The reason
for this was that the existing image, although cached successfully, was not
used because the entry in hashmap did not match because of different(new)
origin.
This is solved by storing the origin of a window in enum ScriptReflow and
used in creating new LayoutContext in case of reflow.
