This is mostly based on TextDocument's similar methods, these will
help implement searching within the terminal application.
The support for unicode code points is shaky at best, and should
probably be improved further.
This was mentioned in #4574, and the more I think about it the more it
feels just right - let's move it there! :^)
Having to link LaunchServer against LibGUI explicitly should've been
telling enough...
Similar to "Copy URL" there is now a "Copy name" action in the context
menu specialized for terminal links. I chose to not alter the behaviour
of the existing copy action to prevent surprises when text is selected
and the user happens to place the cursor over a link.
Closes#4187.
The copy action is now only enabled if there is a selection.
The paste action is now only enabled if the clipboard contains something
the terminal considers pasteable - that is, non-empty data with a text/*
MIME-type. Previously we'd happily paste things like bitmaps into the
terminal, causing it to blow up.
TerminalWidget will now automatically scroll up or down when the user
drags the mouse out of its bounds while selecting text. This happens
at a fixed speed.
This regressed when turning the terminal history into a circular buffer
as only the non-const version of Terminal::line() was updated with
the new indexing logic.
Every widget now has a GUI::FocusPolicy that determines how it can
receive focus:
- NoFocus: The widget is not focusable (default)
- TabFocus: The widget can be focused using the tab key.
- ClickFocus: The widget can be focused by clicking on it.
- StrongFocus: Both of the above.
For widgets that have a focus proxy, getting/setting the focus policy
will affect the proxy instead.
The qualified name of a font is "<Family> <Size> <Weight>". You can
get the QN of a Font via the Font::qualified_name() API, and you can
get any system font by QN from the GUI::FontDatabase. :^)
xterms send a bitmask (+ 1) in the 2nd CSI parameter if "special"
keys (arrow keys, pgup/down, etc) are sent with modifiers held down.
Serenity's Terminal used to send ^[[O, which is a nonexistent
escape sequence and a misread of VT100's ^[O (ie the '[' is
replaced by 'O'). Since the xterm scheme also supports shift
and alt modifiers, switch to that.
More flexible, and makes ctrl-left/right and alt-left/right work
in SerenityOS's bash port.
Also do this for page up/down.
No behavior change for SerenityOS's Shell.
Else, we store an empty but allocated string for each Attribute after a
href was emitted (since it's ended by a non-null empty string), which
makes Line objects very expensive to destroy and to modify.
Reduces `disasm /bin/id` from 414ms to 380ms (min-of-5). There's
a lot more perf wins to be had with better href handling (most
lines don't have any hrefs, so instead of storing a string per
Attr, maybe we could have a vector of hrefs per line and int offsets
into that in each Attr for example), but this is a simple, obvious,
and effective improvement, so let's start with this.
This makes Terminal::scroll_up() O(1) instead of O(n) in the
size of the history. (It's still O(n) in the size of visible
lines.)
Reduces time to run `disasm /bin/id` with the default terminal
window size from 530ms to 409ms (min-of-5) on my system.
This patch adds GUI::FocusEvent which has a GUI::FocusSource.
The focus source is one of three things:
- Programmatic
- Mouse
- Keyboard
This allows receivers of focus events to implement different behaviors
depending on how they receive/lose focus.
During app teardown, the Application object may be destroyed before
something else, and so having Application::the() return a reference was
obscuring the truth about its lifetime.
This patch makes the API more honest by returning a pointer. While
this makes call sites look a bit more sketchy, do note that the global
Application pointer only becomes null during app teardown.
Get rid of the weird old signature:
- int StringType::to_int(bool& ok) const
And replace it with sensible new signature:
- Optional<int> StringType::to_int() const
