If both the row and column headers are visible, we now also show a
button in the top left corner. This avoids the headers overlapping
each other when you scroll the contents.
In the future, this could be hooked up to a "select all" action.
The implementation in LibC did a timestamp->day-of-week conversion
which looks like a valuable thing to have. But we only need it in
time_to_tm, where we already computed year/month/day -- so let's
consolidate on the day_of_week function in DateTime (which is
getting extracted to AK).
The JS tests pointed out that the implementation in DateTime
had an off-by-one in the month when doing the leap year check,
so this change fixes that bug.
The fact that a `MarkedValueList` had to be created was just annoying,
so here's an alternative.
This patchset also removes some (now) unneeded MarkedValueList.h includes.
Specifically:
- post-increment actually implemented pre-increment
- helper-templates that provided operator{+,-,*,/}() couldn't possibly work,
because the interface of add (etc) were incompatible (not taking a Checked<>,
and returning void)
The view needs to recompute the scrollable content size whenever this
happens, so let's always notify it. Previously we were only doing this
when resizing columns with interactively (not programmatically.)
This patch introduces the HeaderView class, which is a widget that
implements the column headers of TableView and TreeView.
This greatly simplifies event management in the view implementations
and also makes it much easier to eventually implement row headers.
This patch adds Widget::children_clip_rect() which can be overridden
to tighten clipping of a widget's children. The default implementation
simply returns Widget::rect().
A Widget can now have a focus proxy widget. Questions about focus are
redirected to the proxy if present. This is useful if a widget could
logically get focus, but wants one of its child widgets to actually
handle it.
Also clamp mouse events to frame rect when dragging outside of the color
field area.
Store hue separately from color, to prevent pure white resetting the hue
back to 0.
With this, if clicking the gutter until the scrubber's below the
mouse and then releasing the mouse, the scrubber is correctly
highlighted after releasing the mouse.
While left-mouse is pressed on any component (arrows, gutter, scrubber),
don't draw hover states for components other than the pressed component.
For example, while clicking the arrow-down button and then dragging
around, the arrow-up button and the scrubber now aren't highlighted.
This also means that during a gutter drag session, the scrubber
isn't highlighted while it's under the mouse cursor. That makes
sense, since we get the gutter drag behavior, not the scrubber
drag behavior, in this case.
The highlight is supposed to indicate "clickability", but if the
mouse is already down, they can't be clicked.
Now that I check for it, this seems to match the scrollbar behavior
on Windows.
And remove the now-redundant members m_scrubbing, m_scrubber_in_use,
and m_automatic_scrolling_kind.
This also made it clear that we weren't canceling the autoscroll
timer if the scrollbar got disabled while it was scrolling, so
this fixes that too.
