With the previous preparations in place, it is time to take the plunge.
As both the app and the portal use the same small library for handling
external windows, port everything at once to avoid the hassle of building
and installing two versions of the library.
With the portal using GTK4 now, all extensions must port their preference
widgets as well.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
We currently use separate frames for the details expander and the
expanded details. That layout works as long as frames are boxy (as
in the default GTK3 style), but breaks down with rounded corners
(as in the default GTK4 style).
In order to work with either style, adapt the layout to use a single
surrounding frame and appropriate borders as separator.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
GTK4 will remove the GtkHeaderBar:title property, so stop using it
and set the window's title property instead, as that's what headbars
use in both GTK3 and GTK4 unless explicitly overridden.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
There's little point in setting properties to their default value,
so stop doing that.
(GtkFrame:shadow-type actually defaults to "edged-in" rather than "in",
but all types other than "none" are treated the same nowadays)
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
Unlike in previous GTK version (or Clutter), destroy() no longer
breaks reference cycles but just releases the reference held by
GTK itself.
So any reference we hold - either the explicit property or any signal
handlers that bind the window as `this` - prevents the window from
being disposed when closed, and the application won't quit.
Work around this by explicitly running dispose() on the window when
it is removed from the application.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
GTK4 will remove the GtkHeaderBar:title property, so stop using it
and set the window's title property instead, as that's what headbars
use in both GTK3 and GTK4 unless explicitly overridden.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1495>
The overview is using a heavily darkened background image nowadays.
Since the contrast provided by this is always good enough, this makes it
possible to always have a fully transparent panel while showing the
overview.
So change the theme to always make the panel fully transparent while the
overview is shown. The duration of the animation for that is 250ms
because that's the duration of the show and hide animation of the
overview.
Also add special handling for the high-contrast theme, where we always
make the panel opaque.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1397>
The SHADE_ANIMATION_TIME variable sets the duration of the animation of
the background shading that is done when showing the overview. As
explained in the code-comment, that value must be smaller than the
animation time of the overview.
Now since we're going to start animating the background color of the
panel when showing the overview and we're going to use the overviews
animation time for that, we want to make sure the shading of the
background image and the animation of the panel are kept "in sync",
otherwise the transitions would look bad.
So slightly increase the value of SHADE_ANIMATION_TIME to 240 (the
overviews animation time is 250) to make sure those happen in the same
timeframe.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1397>
The current way of indicating focus of elements in the panel does not
work very well with a fully-transparent panel, a line at the bottom of
the panel doesn't make too much sense if there is no real panel, but
only the text and icons.
To make the indicators look better in this case, switch to a pill-shaped
background color to indicate the focus of items in the panel.
For this to look good, there has to be a small black border above and
below the background, this also requires increasing the height of the
panel (from 1.86em to 2.2em) for visual purposes.
Also, since we now no longer need to color the lower bottom of the
panel, we can remove the custom drawing code for the border of the
panels corner, so do that.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1397>
The activities button doesn't have an icon, which makes its horizontal
padding appear a bit smaller than the padding of most other items in the
panel.
We're going to indicate hover and focus of items in the panel using a
pill-shaped background color, which means the padding of those items
will get more visible. So give the activities button a special treatment
and slightly increase its padding to make sure the new indicator will
look good.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1397>
Mutter added some additional rules, for instance to enforce proper
capitalization style in commit messages. That's a good idea, and
now that adding rules is easy, let's adapt them to gnome-shell.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1544>
Currently the hint reflects the `active` state, which effectively
corresponds to the screen blank. That's a bit surprising considering
the name, plus the `active` state is already exposed by the ScreenSaver
D-Bus interface for anyone interested.
It seems reasonable that the `LockedHint` property reflects the lock
state, so change the handling to do exactly that.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/351
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1561>
We want to either handle a scroll event ourselves, or delegate it
to the swipe tracker. What we never want is StScrollView's default
handler that doesn't have any knowledge of pages, so disable it.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1560>
Even if they're in the end of the list. So far we've managed to not be affected
by this bug because until GNOME 3.38, workspaces didn't have a background, and
there was no way to navigate to these leftover workspaces, but with the proposed
overview changes for GNOME 40 it'll be very much visible.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1560>
When handling all scroll directions, it is imperative to ignore emulated
events. Otherwise we may get the wrong scroll direction, e.g. when natural
scrolling is enabled.
Ignore pointer emulated events in WorkspaceDisplay._onScroll().
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1560>
All subclasses of BaseAppView now are horizontal, thus we
don't need to deal with the vertical case anymore.
Remove the corresponding parameter from the BaseAppView
constructor, and move the StBoxLayout that both AppDisplay
and FolderView have in common into the base class.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1554>
