This patch adds a simple in-memory HTTP cache to each WebContent
process.
It's currently off by default (turn it on with --enable-http-cache)
since the validation logic is lacking and incomplete.
This implements most of the CloseWatcher API from the html spec.
AbortSignal support is unimplemented.
Integration with dialogs and popovers is also unimplemented.
For SerenityOS, we parse emoji metadata from the UCD to learn emoji
groups, subgroups, names, etc. We used this information only in the
emoji picker dialog. It is entirely unused within Ladybird.
This removes our dependence on the UCD emoji file, as we no longer
need any of its information. All we need to know is the file path to
our custom emoji, which we get from Meta/emoji-file-list.txt.
To get away from the ancient (and buggy) text layout code in
Gfx::Painter, we want to remove all the uses of Painter::draw_text().
As a first step towards this, we implement the draw_text() display list
command in terms of the draw_text_run() command by performing the very
simple necessary layout in draw_text() beforehand.
The location bar URL is no longer hidden when creating a new tab or
opening a new window that has an associated URL. Conversely, the
location bar is now always focused and the URL hidden when creating a
window or tab without an associated URL.
The location bar is focused when:
* Opening the browser from the command line with no URL arguments
* Opening a new tab (Ctrl+T)
* Opening a new window (Ctrl+N)
The location bar is not focused when:
* Opening the browser from the command line with one or more URLs
* Opening hyperlinks in a new tab
* Clicking a hyperlink with `target="_blank"`
This matches the behavior of other major browsers.
Our current segmenter implementation lives in LibUnicode, and is not
locale-aware. We will need such awareness for ECMA-402, and so LibLocale
will be the new home for text segmentation.
The tests here are ported directly from LibUnicode/TestSegmentation.cpp.
There are a couple of differences here due to using ICU:
1. Titlecasing behaves slightly differently. We previously transformed
"123dollars" to "123Dollars", as we would use word segmentation to
split a string into words, then transform the first cased character
to titlecase. ICU doesn't go quite that far, and leaves the string
as "123dollars". While this is a behavior change, the only user of
this API is the `text-transform: capitalize;` CSS rule, and we now
match the behavior of other browsers.
2. There isn't an API to compare strings with case insensitivity without
allocating case-folded strings for both the left- and right-hand-side
strings. Our implementation was previously allocation-free; however,
in a benchmark, ICU is still ~1.4x faster.
Find in page will no longer match text that spans across block elements.
Previously, given the markup `WH<div>F</div>`, the query `WHF` would
find a match. We would now match `WH` and `F` separately, but not `WHF`.
When resuming execution of a suspended function, we must not overwrite
any cached `this` value with something from the ExecutionContext.
This was causing an empty JS::Value to leak into the VM when resuming
an async arrow function, since the "this mode" for such functions is
lexical and thus ExecutionContext will have an empty `this`.
It became a problem due to the bytecode optimization where we allow
ourselves to assume that `this` remains cached after we've executed a
ResolveThisBinding in this (or the first) basic block of the executable.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/138
