Flag some actors that are good candidates for caching in texture memory
(what Clutter calls "offscreen redirect"), thereby mostly eliminating
their repaint overhead.
This isn't exactly groundbreaking, it's how you're meant to use
OpenGL in the first place. But the difficulty is in the design of
Clutter which has some peculiarities making universal caching
inefficient at the moment:
* Repainting an offscreen actor is measurably slower than repainting
the same actor if it was uncached. But only by less than 100%,
so if an actor can avoid changing every frame then caching is usually
more efficient over that timeframe.
* The cached painting from a container typically includes its children,
so you can't cache containers whose children are usually animating at
full frame rate. That results in a performance loss.
This could be remedied in future by Clutter explicitly separating a
container's background painting from its child painting and always
caching the background (as StWidget tries to in some cases already).
So this commit selects just a few areas where caching has been verified
to be beneficial, and many use cases now see their CPU usage halved:
One small window active...... 10% -> 7% (-30%)
...under a panel menu........ 23% -> 9% (-61%)
One maximized window active.. 12% -> 9% (-25%)
...under a panel menu........ 23% -> 11% (-52%)
...under a shell dialog...... 22% -> 12% (-45%)
...in activities overview.... 32% -> 17% (-47%)
(on an i7-7700)
Also a couple of bugs are fixed by this:
https://bugzilla.gnome.org/show_bug.cgi?id=792634https://bugzilla.gnome.org/show_bug.cgi?id=792633
When not using arrow notation with anonymous functions, we use Lang.bind()
to bind `this` to named callbacks. However since ES5, this functionality
is already provided by Function.prototype.bind() - in fact, Lang.bind()
itself uses it when no extra arguments are specified. Just use the built-in
function directly where possible, and use arrow notation in the few places
where we pass additional arguments.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
Since commit ef1e27966d turned DashItemContainer into an StWidget,
the destroy() method overrides the ClutterActor method, which is at
the very least bad style. Instead, follow the usual pattern of using
a ::destroy handler.
https://bugzilla.gnome.org/show_bug.cgi?id=791233
Labels are currently destroyed from both animateOutAndDestroy()
and destroy(), which now (rightfully) triggers a gjs warning. As
the label is created unconditionally since commit 36e5ae4a25,
mirror that and always release it in destroy() and hide it
elsewhere.
https://bugzilla.gnome.org/show_bug.cgi?id=791233
Any symbols (including class properties) that should be visible
outside the module it's defined in need to be defined as global.
For now gjs still allows the access for 'const', but get rid of
the warnings spill now by changing it.
https://bugzilla.gnome.org/show_bug.cgi?id=785084
We currently use "array[index]" to test whether an array has an
element at index before using it. However nowadays gjs warns about
accessing non-existent array elements, so the test itself already
produces a warning. Avoid this by checking the array length before
using an index to access an element.
https://bugzilla.gnome.org/show_bug.cgi?id=781471
StIcon will skip loading the texture when its theme node is unset (which
may happen on style changes while the widget is hidden). While our size
request to compute the dash icon size will create the icon's theme node
if necessary (and of all its parents), a missing texture can still throw
off our computation.
Make sure this doesn't happen by ensuring the icon's style first, so the
texture is updated in response to StWidget::style-changed if necessary.
https://bugzilla.gnome.org/show_bug.cgi?id=745649
When adjusting dash icon sizes, we compute the icon padding by subtracting
the configured icon size from the first icon actor's preferred size. To
make sure that the preferred size correctly corresponds to the current
dash icon size even while the icon is animating, we enforce the size
before the size request. For that we used to temporarily manipulate
the icon texture size directly, but commit e92d204d42 cleaned this
up to use the setIconSize() method instead.
This does not work however, as the icon actor's iconSize property will
always match the dash iconSize property, making the method a noop. So
go back to the original approach of enforcing the texture size to make
sure we always base our computations on correct values.
https://bugzilla.gnome.org/show_bug.cgi?id=745649
The overview has a longer life-time than dash items, so we are
leaking a signal connection each time an item is destroyed.
Spotted by Michele (<micxgx@gmail.com>)
https://bugzilla.gnome.org/show_bug.cgi?id=744575
Because there's nothing (in single-monitor setups) that could
take the drop in this case.
* js/ui/appDisplay.js:
AllView._loadApps(), FrequentView._loadApps(): Pass
an isDraggable parameter when creating the AppIcons,
depending on whether the favorite-apps key is locked.
AppIcon._init(): Check for isDraggable in the params and
do not create _draggable if it was specified, to prevent a
drag from starting.
AppIcon.popupMenu(): Check _draggable before trying to call
fakeRelease on it.
* js/ui/dash.js: Dash._createAppItem(): Check AppIcon._draggable
before trying to connect to its signals.
https://bugzilla.gnome.org/show_bug.cgi?id=741325
In a lockdown scenario, where the favorite-apps GSettings key is not
writable, hide the menu items for adding and removing favorites from the
dash menu. Additionally, reject drops to the dash for DND.
https://bugzilla.gnome.org/show_bug.cgi?id=741325
When the dash does not contain any applications (either favorites
or running), it is currently impossable to add a favorite via DND.
Grow the dash slightly in that case to provide a drop target.
https://bugzilla.gnome.org/show_bug.cgi?id=684618
We currently only keep track of old placeholders when moving past
the dragged app's current favorite position, as this is the only
case where we need to worry about jitter. Still, moving it into
_clearDragPlaceholder() allows us to consolidate code paths, which
is a good thing ...
https://bugzilla.gnome.org/show_bug.cgi?id=684618
The function currently only resets the placeholder position if
there is a placeholder; this is not necessarily true, as the
placeholder may be reset outside _clearDragPlaceholder().
If this happens, the placeholder will temporarily stop working
for the "old" position (and permanently if it's the only position).
Just reset the position unconditionally.
https://bugzilla.gnome.org/show_bug.cgi?id=684618
animateIn and animateOut should not reset the scale, otherwise
extra animate calls (which are possible because the diff algorithm
in _redisplay is not optimal) cause unneeded movement.
Therefore, create new items hidden, and have the creator call
animateIn or set the scale/opacity properties manually.
adjustIconSize must be changed to always set the icon size temporarily,
otherwise the first time it computes the icon size with 0 scale.
https://bugzilla.gnome.org/show_bug.cgi?id=690643
The DashActor will known to allocate the show apps button only if the
icon size is (temporarily) too big for the containing box, therefore
it should request just that as the minimum size.
This solves a glitch that happened when removing a favorite and at the
same time causing the dash to expand.
https://bugzilla.gnome.org/show_bug.cgi?id=690643
AppIcon is just a tiny wrapper around BaseIcon, which does not add
anything over using BaseIcon directly, so merge its code with
AppWellIcon. As the concept of the "app well" has not been used
since well before 3.0, use AppIcon as name for the merged class.
https://bugzilla.gnome.org/show_bug.cgi?id=694192
When updating the dash, we already avoid all animations while the
overview is hidden. However, as we are using Main.queueDeferredWork(),
updates may be deferred up to ~20 seconds while the overview is hidden.
If the overview is entered before a queued update has taken place, it
will be run immediately on map - as the overview is visible by then,
this means animating any outstanding changes.
Work around this by skipping animations during overview transitions as
well.
https://bugzilla.gnome.org/show_bug.cgi?id=686530
When in the overview, if you move the mouse cursor over one of the
application launchers in the dash, all the unrelated windows are dimmed
both both in the window view and in the workspace view.
It helps to easily understand whether or not there are already opened
windows for this application, and where they are. It can also help in
differentiating the windows in the overview (sometimes the thumbnails
aren't precise enough to easily know which thumbnail belongs to which
application).
https://bugzilla.gnome.org/show_bug.cgi?id=657315
This has also the benefit of getting the application even if it can not
be retrieved through AppSystem, which can happen if the runtime WMClass
does not match the one of the desktop file.
This especially looked wrong with the following commits related to the
bug.
https://bugzilla.gnome.org/show_bug.cgi?id=657315
We simply hide the label when the popup is opened instead of relying
on the popup state when the hover state change.
To do this we replace the flag isMenuUp by a 'menu-state-changed' signal
on the AppWellIcon. This simplifies the dash label visibility handling
code that need additional changes for the bug.
https://bugzilla.gnome.org/show_bug.cgi?id=657315
After some changes, the tooltip label at the dash is not available
until it is visually shown. As this is not anymore a reliable
source of accessible name, we just set the accessible name
with the string used on that label.
https://bugzilla.gnome.org/show_bug.cgi?id=686583
Currently the label for the show-apps button is only updated during
drag operations, so after an item is successfully dropped on the
button, the label will still read "Remove from Favorites".
Fix this by resetting the label on drag-end.
https://bugzilla.gnome.org/show_bug.cgi?id=684627
Having the tooltip change when it's visible looks strange and glitchy.
This also makes sure that "Remove from Favorites" doesn't change, even
when the user removes their mouse cursor from it.
https://bugzilla.gnome.org/show_bug.cgi?id=685313
