This is a moderately fast two-pass gaussian blur
implementation. It downscales the framebuffer by
half before applying the gaussian shader, which
cuts down rendering time quite considerably.
The blur shader takes 3 uniforms as input: the blur
radius; whether to blur vertically or horizontally;
and a brightness value.
The blur radius is treated as an integer in C land
to simplify calculations. The vertical parameter is
treated as an integer by the shader simply due to
Cogl not having proper boolean support in snippets.
At last, brightness is also added to avoid needing
to use an extra effect to achieve that.
We are currently inconsistent whether to put the operators in front
of the corresponding line or at the end of the preceding one. The
most dominant style for now is to put condition and first branch on
the same line, and then align the second branch:
let foo = condition ? fooValue
: notFooValue;
Unfortunately that's a style that eslint doesn't support, so to account
for it, our legacy configuration currently plainly ignores all indentation
in conditionals.
In order to drop that exception and not let messed up indentation slip
through, change all ternary operators to the non-legacy style.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/725
We currently use no less than three different ways of indenting
object literals:
let obj1 = {
foo: 42,
bar: 23,
};
let obj2 = { foo: 42,
bar: 23 };
let obj3 = { foo: 42,
bar: 23
};
The first is the one we want to use everywhere eventually, while the
second is the most commonly used "legacy" style.
It is the third one that is most problematic, as it throws off eslint
fairly badly: It violates both the rule to have consistent line breaks
in braces as well as the indentation style of both regular and legacy
configurations.
Fortunately the third style was mostly used for tween parameters, so
is quite rare after the Tweener purge. Get rid of the remaining ones
to cut down on pre-existing eslint errors.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/716
We now have everything in place to replace Tweener for all animatable
properties with implicit animations, which has the following benefits:
- they run entirely in C, while Tweener requires context switches
to JS each frame
- they are more reliable, as Tweener only detects when an animation
is overwritten with another Tween, while Clutter considers any
property change
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
For animating the arrows on the screenshield, we currently use a custom
transition function that tweens the opacity from 0 to maxOpacity in the
first half of the animation, and from maxOpacity back to 0 in the second
half.
This doesn't easily translate to Clutter's own animation framework, so
replace the custom transition with two consecutive tweens which do.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
The different units - seconds for Tweener and milliseconds for
timeouts - are not a big issue currently, as there is little
overlap. However this will change when we start using Clutter's
own animation framework (which uses milliseconds as well), in
particular where constants are shared between modules.
In order to prepare for the transition, define all animation times
as milliseconds and adjust them when passing them to Tweener.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/663
While we aren't using those destructured variables, they are still useful
to document the meaning of those elements. We don't want eslint to keep
warning about them though, so mark them accordingly.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
meta_later_add() is modelled after g_idle_add() and friends, and
the handler's boolean return value determines whether it should
be scheduled again or removed. There are some places where we omit
the return value, add them (although the implicit return value of
"undefined" already gives us the intended result).
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/637
Braces are optional for single-line arrow functions, but there's a
subtle difference:
Without braces, the expression is implicitly used as return value; with
braces, the function returns nothing unless there's an explicit return.
We currently reflect that in our style by only omitting braces when the
function is expected to have a return value, but that's not very obvious,
not an important differentiation to make, and not easy to express in an
automatic rule.
So just omit braces consistently as mandated by gjs' coding style.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/608
While we have some style inconsistencies - mostly regarding split lines,
i.e. aligning to the first arguments vs. a four-space indent - there are
a couple of places where the spacing is simply wrong. Fix those.
Spotted by eslint.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/608
In order to replace GTK+'s GtkDirectionType. It's bit-compatible with it,
too. All callers have been updated to use it.
This is a purely accessory change in terms of X11 Display usage cleanup,
but helps see better what is left.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/317
In order to replace GTK+'s GtkPolicyType. It's bit-compatible with it, too.
All callers have been updated to use it.
This is a purely accessory change in terms of X11 Display usage cleanup,
but helps see better what is left.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/317
Allow notifications to set a x-gnome-privacy-scope hint, with values in
['system', 'user']. If all the notifications in a particular source hint
that their privacy scope is ‘system’, don’t hide the notification
details on the lock screen.
This is aimed at fixing the particular case of power notifications: they
contain information which is not private to the user (it relates to the
system: battery state or AC state, which is obvious to anyone who can
see the machine), so hiding the details of a power management
notification when the screen is locked is pointless.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://gitlab.gnome.org/GNOME/gnome-shell/issues/726
The last patch in the series, this one adapts StShadowHelper
to received a CoglFramebuffer. This is where we first touch
JavaScript with Cogl types, and as such, it depends on the
latest Mutter. Earlier versions of Mutter didn't have its
Mutter-Clutter GIR to generate types for various Cogl types.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/283
ES6 finally adds standard class syntax to the language, so we can
replace our custom Lang.Class framework with the new syntax. Any
classes that inherit from GObject will need special treatment,
so limit the port to regular javascript classes for now.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/361
Remove any usage of MetaScreen, as it has been removed from libmutter
in the API version 3. The corresponding functionality has been moved
into three different places: MetaDisplay, MetaX11Display (for X11
specific functionality) and MetaWorkspaceManager.
https://bugzilla.gnome.org/show_bug.cgi?id=759538
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
We keep track of the lock state and restore it on startup to prevent
a crash from bypassing the screen lock. However on wayland, a crash
doesn't result in gnome-session restarting gnome-shell, but brings
down the entire session - that is, restoring the lock state does not
actually protect the existing session in that case, but forces the
user to authenticate twice in order to start the next session. This
is clearly not helpful, so avoid this by not saving the state when
running as wayland compositor.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/17
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
When using the 'disable-lock-screen' setting to lock down the screen
lock, the expectation is that users cannot lock the screen. However
as it turns out, all the setting currently does is hiding the lock
button in the system menu and making the lock settings in the privacy
panel inactive. That means that if the 'lock-screen-enabled' setting
isn't disabled and locked down as well, we will just continue to
lock the screen on inactivity - not to mention the keyboard shortcut
that isn't subject to that setting anyway.
Instead of expecting administrators to hunt down every possible way
of locking the screen and disabling it individually, we can easily
handle all cases by refusing to lock the screen when disabled by the
lockdown settings.
https://bugzilla.gnome.org/show_bug.cgi?id=780212
The lightboxes used for screen blanking are created during initialization
and shown each time the screen should blank. During the (potentially long)
time where the lightbox is hidden, any actor could be raised above the
lightbox - in particular any popup menu raises itself to the top when
opened. To not exclude those elements from screen blanking, raise the
lightbox every time it is shown.
https://bugzilla.gnome.org/show_bug.cgi?id=773875
Since commit 67615a0cbc, any printable key can be used to lift the
screen shield rather than just escape/enter/space. While this is
convenient for unlocking where the input is forwarded to the password
entry, it is potentially dangerous when the screen is inactive but
not locked: If the user types her password, the first character will
lift the shield and the remaining input will go to the focused window.
To prevent this from happening, only allow printable keys when the
screen is actually locked and restrict the key presses that lift the
shield to the original set of escape/enter/space otherwise.
https://bugzilla.gnome.org/show_bug.cgi?id=773328
This isn't a performance critical actor and the NVIDIA driver discards
offscreen buffers in some cases which would require us to go through
extra hoops to handle here which isn't worth it.
https://bugzilla.gnome.org/show_bug.cgi?id=739178
Logind recently got support for a hint property in Session Object to
inform if session is Locked or not. It is up to desktop environments
to keep this property up to date.
https://bugzilla.gnome.org/show_bug.cgi?id=764773
If we aren't the active session clutter can't animate and thus we
can't expect the shield to be shown before releasing the suspend
inhibitor so we should release it immediately when becoming inactive.
https://bugzilla.gnome.org/show_bug.cgi?id=749228
