These classes are used as-is in all chromes. Move them to LibWebView so
that non-Serenity chromes don't have to awkwardly reach into its headers
and sources.
Currently, the only NSWindow type in the AppKit chrome is the Tab. Once
we have other window types (e.g. Inspector), commands which assume they
are used on a Tab will either crash or behave weirdly.
This changes the createNewTab: command to accept the tab from which the
new tab is created, rather than assuming that tab is the key window. So
if some JS on a page calls window.open() while a non-Tab window is key,
the new tab will be opened within the same tab group.
This also changes closeCurrentTab: to work on any key window. Regardless
of whether the key window is a Tab or some other window, pressing cmd+W
should just close that window.
This lets the user choose a color scheme which differs from the active
system theme. Upon changing the color scheme, the scheme is broadcast to
all active tabs, and will be used in new tabs.
This adds an alternative Ladybird chrome for macOS using the AppKit
framework. Just about everything needed for normal web browsing has
been implemented. This includes:
* Tabbed, scrollable navigation
* History navigation (back, forward, reload)
* Keyboard / mouse events
* Favicons
* Context menus
* Cookies
* Dialogs (alert, confirm, prompt)
* WebDriver support
This does not include debugging tools like the JavaScript console and
inspector, nor theme support.
The Qt chrome is still used by default. To use the AppKit chrome, set
the ENABLE_QT CMake option to OFF.
