In their current implementation, both the NodeIterator and TreeWalker would
skip over ignored nodes. However, while the node itself should have been ignored
its children should still be iterated.
For example, when going over:
```
<div id="container">
<!-- comment1 -->
<span>
<!-- comment2 -->
</span>
</div>
```
With `SHOW_COMMENT`, the previous version would completely skip over `container`
and its children. Now the code still won't emit the `container` div itself,
it will still iterate through its children (and thus emit the two comments).
This change relates to ongoing react compatibility.
This is how, for example, scripts on lightpanda.io are. Though fixing this
doesn't really change anything, it's good to make sure these events are firing
correctly.
First, this exposes the v8 Profiler. Right now it's just a commented-out block
in `fetch` and meant for internal debugging.
Depends on: https://github.com/lightpanda-io/zig-v8-fork/pull/105
Use postAttach on Window to attach "static" properties. This comes from
profiling (lightpanda.io) and seeing window.get_self called tens of thousands
of times.
This prefers `suggestVectorLength` in order to pick a vector size; for cookie strings shorter than, say 64, this might cause it to fallback to slow path on architectures that support larger vector sizes (like AVX-512). We may also add checks for smaller vector sizes if desired in the future.
1 - Always fire the callback on the next tick. This is probably the most
important change, as frameworks like React don't react well if the callback is
fired immediately (they expect to continue processing the page in its current
state, not in the mutated state from the callback)
2 - Always fire the callback for observed elements with a parent, whether or
not those intersect or are connected. From MDN, the callback is fired
"The first time the observer is initially asked to watch a target element."
3 - Add a mutation observer so that if a node is added to the root (or removed)
the callback is fired. This, I think, is the best we can currently do for
"intersection".
When using CDP, we poll the HTTP clients along with the CDP socket. Because this
polling can be long, we first process any pending message. This can end up
processing _all_ messages, in which case the poll will block for a long time.
This change makes it so that when the initial processing processes 1+ message,
we do not poll, but rather return. This allows the page lifecycle to be
processed normally (and not just blocking on poll, waiting for the CDP client
to send data).
1 - On `unkown global property`, include the stack trace (this might be WAY too
verbose)
2 - On script get, include stack trace (when available)
3 - On script get, include referrer
4 - Stack traces will now include the script name/src when available
The call_arena was previously owned by the js.Context, but it has to exist on
the page, and the page is created before the context, so it's set to undefined
on the page. While this has never caused an issue, there's no reason for the
page not to own this, and the context to simply reference it.
Also, renamed the js.Context.context_arena to simply `arena`, which is more
consistent with other arena names (e.g. page.arena).
Adds bortli as a submodules, and compiles the decoder, making it available to
libcurl.
Some websites appear to sent brotli encoded responses even though we don't
advertise support for it (e.g. https://movie.douban.com).
Remove the is_blocking variable (and checks) from the ScriptManager. This is a
holdover to when blocking imports had a dedicated connections, and thus couldn't
be loaded concurrently.
This changes two obvious things (and probably a few subtle ones). The first is
that plain async scripts are now free to be executed as soon as they are
completed. As far as I can tell, this is a safe behavior, is simpler and should
be a bit faster.
More importantly, it allows for chains of imports. normal import (A) -> dynamic
import (B) -> normal import (C). This would previously fail an assertion. The
superficial issue was that dynamic import handling didn't respect the
`is_blocking` flag. But if we did respect it, than module B would never be able
to load module C, which would block module A from ever completing. By removing
the flag, module C will now be properly evaluated, which unblocks module B which
allows module A to unblock.
(1) I believe this is the issue seen here:
https://github.com/lightpanda-io/browser/issues/1121
Currently, this hooks a single log.Interceptor into the logging framework, but
changing it to take a list shouldn't be too hard. Biggest issue is who will own
it, as we'd need an allocator to maintain a list / lookup (which log doesn't
currently have).
Uses logFmt format, and, for now, always filters out debug messages and a few
particularly verbose scopes.
This Pr largely tightens up a lot of the code. 'v8' is no longer imported
outside of js. A number of helper functions have been moved to the js.Context.
For example, js.Function.getName used to call:
```zig
return js.valueToString(allocator, name, self.context.isolate, self.context.v8_context);
```
It now calls:
```zig
return self.context.valueToString(name, .{ .allocator = allocator });
```
Page.main_context has been renamed to `Page.js`. This, in combination with new
promise helpers, turns:
```zig
const resolver = page.main_context.createPromiseResolver();
try resolver.resolve({});
return resolver.promise();
```
into:
```zig
return page.js.resolvePromise({});
```
Renames JsContext -> js.Context, JsObject -> js.Object and JsThis -> js.This
which is more consistent with the other types. The JsObject -> js.Object is
the reason so many files were touched.
This is still a [messy] transition, with more refactoring planned to clean it
up.
