Since commit 770231, StImageContent implements the GIcon interface, which
allowed us to represent all application icons as GIcon (app-info, X11 icon
property or themed fallback icon).
While that change made for a nicer ShellApp API, it did introduce a
conceptual issue in st_texture_cache_bind_cairo_surface_property():
GIcons usually represent static icons, while the ClutterContent
returned by that method updates automatically when the bound property
changes.
Address this by tracking the MetaWindow:icon property in ShellApp, and
update the fallback icon when it changes. With that, a GIcon object
always represents the same icon, and any icon change is reflected
by a corresponding GIcon change.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1761>
We hold a reference to all windows we track for the app. While that
reference is unlikely to be the last remaining one, we still shouldn't
release it until we are done with the window.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1761>
Creating a content object from a cairo surface may fail, in which case
we return an empty content with a 0x0 preferred size.
However when we treat such a content object as GIcon, we happily load
it anyway. Don't do that, so consumers like StIcon can fall back properly
to an alternative.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1761>
While most GIcons passed to this function cause a StImageContent to be
created with the requested size, cairo surface based icons already are
passed as StImageContent with a preferred size corresponding to the
size of the surface they were created from. As a result icons of window
backed applications were never scaled up like the other icons. Fix this
by ignoring the content size for these case.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1751>
Right now we use a ClutterClone ghost of the panel simply to add some
spacing to the top monitor edge.
We can remove the panelGhost by adjusting the allocations of all the
parts of the overview ourselves inside ControlsManagers vfunc_allocate,
this should also work with extensions that move the panel somewhere
else.
This makes the initial relayout of the overview significantly faster,
because we now no longer have to relayout the whole panel in the
process.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1755>
The OverviewControls actor gets allocated a fixed size by its parent,
the OverviewActor, anyway, so it's pretty useless to go through the size
request machinery and add up all the sizes of items in the iconGrid,
coming up with a preferred size that's wrong anyway.
Instead simply return a min and preferred size of 0 in
get_preferred_height/width of ControlsManagerLayout.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1755>
Hiding actors allows excluding them from layout, so by hidding the
appDisplay in all the cases where the overviewAdjustment is not actually
showing it, we can save a lot of time on the first frame of painting
the overview because we no longer have to layout the whole appGrid.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1755>
We create a lot of BaseIcons for the appGrid, one for every app, and for
all of those we have to hop through JS to get the preferred width. That
makes it another obvious target for moving to C, so let's do that.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1755>
The logic that decides whether we should shift the window up when the
cursor rectangle overlaps with the keyboard rectangle doesn't work
properly right now, we want it to work like this:
- If the currently focused window is shifted up, keep it shifted up
until the cursor rect no longer overlaps the keyboard rect. To do that
comparison correctly, we need to adjust for the height the cursor rect
is shifted up by (keyboardHeight) and temporarily shift it down again.
- If the currently focused is not shifted up, we want to shift it up as
soon as the focus rect overlaps the keyboard rect. If that's not the
case, want still want to call _setFocusWindow(null) in order to shift
the previously focused window back down.
This fixes two issues: 1) We're currently shifting windows back down at
the wrong position of the cursor (that is y < keyboardHeight). 2) We're
not shifting down previously focused windows when focusing a different
window with the new focus in a specific region (y >= keyboardHeight &&
y + h < monitor.y + monitor.height - keyboardHeight).
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1760>
So far the FocusTracker of the OSK can only recognize grab ops on a
window, that is when the user grabs the window using a mouse or the
touchscreen and actively drags it somewhere.
Window can also be moved using keyboard shortcuts, fullscreen buttons or
other ways which don't rely on grabs. Start also supporting those window
movements by listening to the "position-changed" signal on the currently
focused window and emitting the new "window-moved" signal in that case.
Because the OSK sometimes moves windows by itself, we temporarily
disconnect from that new signal while we move the focused window in
_windowSlideAnimationComplete().
This also takes care of resetting this._focusWindowStartY on movements
of the window.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1760>
Commit 8526776b4a changed the OSK to use
the translation-y property of the MetaWindowActor when animating a focus
window, which broke two things:
1) It's not compatible with the obscured region culling we do for
windows in mutter. That's because MetaCullable strictly operates in
integer coordinates and thus has to ignore any transformations
(translation-y is a transformation). Because of this, during the
animation and gesture, window damage is now tracked incorrectly,
introducing painting issues. The best fix for this would probably be
factoring in transformations when tracking damage in MetaCullable, but
that's not feasible right now.
2) It broke the shifting up of maximized and tiled windows, likely that
is because they are positioned using constraints internally, and mutter
enforces those constraints every time meta_window_move_frame() is
called, not allowing the window to move somewhere else.
To fix both issues, go back to the old way of shifting the window for
now, using the fixed y position of the ClutterActor. To make sure the
drag-up gesture still works, store the initial y1 position of the window
and then use that as a reference point for all our animations.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1760>
I suggested it myself when reviewing
https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1668, so
here I am reverting that again...
The difference between calling _setFocusWindow(null) and simply
unsetting the focusWindow is that the former animates the window back to
its position before we shifted it up, while the latter simply "lets go
of the window".
In this case we actually want the latter because after the user grabbed
the window, we obviously should not animate it away right underneath the
users pointer/finger.
To ensure the same mistake doesn't happen again, add a small comment
explaining why this code is as it is.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1760>
If the actor is unmapped in the handler, the touch gesture will cancel.
Since we haven't reset the state yet, it will still work and will actually
cancel the gesture, so reset before that instead.
Fixes overview cancelling when trying to open it with a swipe.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1731>
When this class was written, all swipes in the shell were vertical, so it
made sense to make the default orientation vertical. This isn't the case
anymore, thus pass make it mandatory to specify orientation when creating
a tracker.
Change the property default values to horizontal as well to match Clutter
instead of the old shell design.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1731>
The focus rectangle of the OSK currently gets stored with an offset that
removes the global coordinates and makes it window-local coordinates.
This offsetting has been applied since the introduction of the
FocusTracker with commit fc5ab44704 and it
seems there's no real reason for it.
By removing this, we also emit position-changed when the window has
moved but the window-local coordinates stayed the same. We really want
to emit position-changed in that case because it might affect whether
the window needs to be shifted up.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1728>
Apparently some clients, including gtk don't "clip" the focus rectangle
to their window bounds when scrolling the focus outside the window. This
makes us shift up windows when the focus actually is no longer visible.
This issue needs fixing in GTK, it should probably stop reporting
focus changes when the focus moves outside of the visible view. We can
still do a little bit better on our side though and "clip" the rectangle
to the windows frame rect: If it moves out of the window, we simply stop
updating our focus rect.
The intersection check introduces a small problem though: Some clients
(for example gedit) will give us a cursor rect that has a 0 width or
height. This won't play well with graphene_rect_intersect()
(GrapheneRects never intersect if they are 0-sized), so we set the size
to 1 in case we get a 0-sized rectangle.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1728>
The FocusTracker keeps track of the currently focused window using its
internal this._currentWindow property. It will only pick up the focused
window though when receiving a "notify::focus-window" signal, so the
focused window that's set when the FocusTracker is created won't be
picked up.
Fix that by setting the _currentWindow during creation of the
FocusTracker.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1728>
Now that we got rid of the external calls to setCursorLocation(), we can
make that private. animateShow() and animateHide() weren't called from
outside anyway, so let's make those private, too.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1728>
What this signal does is fire when a window was grabbed. A receiver
might want to do something special when a window was grabbed, whereas
"reset" can mean anything. Rename the "reset" signal to
"window-grabbed".
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1728>
Instead of interpolating our workspace and layout boxes for each child
using clutter_actor_box_interpolate(), use our Util.lerp() function and
stay in JS land instead.
This is quite a large performance improvement since it avoids
heap-allocating a new ClutterActorBox for every child. With this, we're
finally at a duration of 1.0 ms to allocate the Workspace with 20
windows.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
Move the get_preferred_width/height() and allocate() vfunc
implementations of WindowPreview to C, subclassing the C GObject from
JS.
This gets us another significant performance gain, allocating a
workspace with 20 windows now only takes 1.2 ms.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
It turned out that getting properties and saving them to a variable
outside of loops instead of accessing them everytime inside the loop can
have significant impact on performance, so do that in Workspaces
vfunc_allocate().
Here the impact is not that large, about 0.05 ms with 20 open windows,
that still seems worth it though.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
These checks aren't needed since Clutter should enforce this for us
already and skip the implicit transition when possible. This gets our
time spent in vfunc_allocate() down to 2.0 ms with 20 windows
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
Setting four properties is more expensive than calling two C functions,
so move to set_origin()/set_size() calls for our ClutterActorBox
handling.
This gets us down to an average time of 2.1 ms spent in vfunc_allocate()
with 20 windows
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
We can save a little bit of time in this loop by iterating directly
over the windowSlots array instead of iterating through children and
then performing a search for the windowSlot. This saves more time and we
only spend 2.2 ms instead of 2.3 ms in vfunc_allocate() now.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
This layout manager is used quite often and the time we spend calling
it's allocate and get_preferred_width/heigth functions increases with
every open window.
We can save a lot of precious time during the layout cycle by moving
this layout manager from JS to C, thus avoiding the overhead of
trampolining between C and JS land.
In a measurement where the average time spent in vfunc_allocate() of the
Workspace actor was measured while opening an overview with 20 windows,
the average time spent went down from 3.1 ms to 2.3 ms.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
