We share this actor with other shell menus, which arguably track a different
"cursor" as we care of the caret/anchor text positions, and menus care about
pointer click coordinates.
Use a standalone actor for this, so popups/IM are entirely decoupled.
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1571
If graphical applications want to start from systemd units, they need to
start after we're properly ready to display them. This is particularly
important under X where `_GTK_FRAME_EXTENTS` and other xprops are needed
to have the right theming.
We're doing this in an idle callback so that the dynamic starting of
`gnome-session-x11-service.target` (which launches `gsd-xsettings`) as
the result of a signal emission happens before us signalling we're ready
for later things to start.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/750
As per clutter optimizations in should_skip_implicit_transition() any
transition will be ignored if applied to an actor with unmapped clones.
Since we initialize the lightbox as hidden, when we use it standalone (as it
happens for the long fade in screenShield) the transition will be ignored.
This causes the lockscreen fade-out after the idle delay not to work, but
instead to have an apparently locked system that is instead not locked at
all.
So, just ensure that the lightbox actor is visible before applying to it any
transition.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1683
The shell tries to spawn the ibus daemon on startup if unavailable, however
as per commit 8adfc5b1 we also force restarting it once the X11 server is
available.
Unfortunately this could cause a race if we disconnect while we were already
connected to an ibus daemon, but still in the process of going through the
various nested calls.
In fact the ::disconnect callback didn't stop any further async ibus call
that, even if failing, would have eventually triggered the emission of a
'ready' signal and to the Keyboard's callback, leading under X11 to a full
grab owned by ibus daemon.
In order to avoid this and keep control of the calls order, use in both
IbusManager and InputMethod a cancellable that is setup before connecting to
the bus, and that is cancelled on disconnection.
Then handle the finish() calls properly, using try/catch to validate the
returned value, taking in account the potential error and just not
proceeding in case of cancellation.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1712
gnome-shell calls ibus_input_context_focus_in() in InputMethod.focus_in()
but the event is not actually forwarded to panels and engines in GNOME
Wayland because gnome-shell changes IBus.Capabilite by focus events and
disables IBus.Capabilite.FOCUS when ibus_input_context_focus_in() is called.
IBus.Capabilite is assumed a fixed value per input context in the
first place and it should not be changed by focus events.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/573
Unset the signal IDs we connected to when starting the drag. Otherwise
we get error messages if a touch drag is ended after a mouse drag
happened because the signal IDs are still set but no signals are
connected.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/740
The screen shield creates the unlock dialog based on the session mode.
However since commit 0c0d76f7d6 turned LoginDialog into an actor
subclass (while UnlockDialog kept using the delegate pattern), it is
no longer possible to handle both objects the same way without warnings.
Allow this again by turning UnlockDialog into an actor subclass as well.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/736
When easing, we need the transition of one of the involved properties
to connect our callbacks. Currently we simply get the transition for
the first property, however as Clutter optimizes the case where a
property doesn't actually change, that transition may be NULL even
though we still animate other properties.
So instead of only looking at the transition of the first property,
try to find a transition for any of the involved properties.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1572
The RenameFolderMenu uses the internal box as a menu item, while PopupMenu
expects to have PopupBaseMenuItem based children with a delegate set.
Instead of using a custom menu with a customized box acting as menu
item,just add a RenameFolderMenuItem that inherits from the parent,
adjusting the features as we need them. In fact, the rename folder menu item
doesn't need any label, padding or default styling so we can reuse
PopupMenuBaseItem after we use our styling properties and we set the
Ornament to HIDDEN.
To get the proper style in place, define rename-folder-popup and
rename-folder-popup-item to override the default popup-menu-item rule
padding instead of using margins.
Pass the menu item as menu's focusActor as this will key-focus it on pop-up,
by overriding the key_focus_in() vfunc we can then delegate the focus
handling to the entry's clutter-text.
Also override the map() vfunc in order to update the entry's content before
mapping the entry.
Finally, use the item's activate method in order to tell the parent menu
we're done with it and that the menu can be closed.
As consequence we can also remove the menu's popup() method, and just use
the default open().
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/720
When the rename folder menu is opened the text entry is expected to be
focused and selected for a quick editing.
While this is required it doesn't actually happens since PopupMenu by
default gives the key focus to the source actor, that is then free to pass
the key focus to the menu if there's an user interaction.
In this case however, we want the text entry to be focused once we prompt
the menu, so just use the PopupMenu's focusActor property to ensure it will
handle it for us.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1604https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/720
The PopupMenuManager is supposed to grab and focus the menu actors, with
normal menus we always need to grab the actual menu but set the key focus to
the source actor so that it will be able to move the focus to the menu
child, if requested.
However there are menus such as the RenameFolderMenu that requires the
key-focus once prompted, so provide a focusActor property (defaulting to the
sourceActor) that can be set in order to define the actor to give the
keyboard focus to, when the menu is popped-up.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1604https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/720
The menu item ornament is used to put dots or checks in menus or otherwise
to define a padding for a label.
However in some cases we want to create a menu item with no left (in ltr)
padding.
In order to do that, define a HIDDEN Ornament mode that completely hides the
ornament actor.
The naming here might be confusing as this should probably be called NONE,
while the default mode is the invisible one, but it's too late to change it
now.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/720
While commit 3094f863 was intended to cancel the ongoing idle hide
timeout before we start a new one, a mistake slipped in there while
rebasing: Obviously we should check if the signal id is NOT 0 here.
This didn't prevent timeouts being started while old ones are still
running and did override `this._idleHideOverlayId`, which caused the old
timeouts to run indefinitely after an overlay actor was destroyed
because we fail early (and don't return TRUE) in `_idleHideOverlay()`.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/735
Indicate whether dropping an app icon was successful or not by using the
newly added `animateLaunchAtPos()` API of AppIcon which starts a zoom
out animation of the icon at the position the drop happened.
To get the position of the drag actor, we have to forward the arguments
passed to `acceptDrop()` and `handleDragOver()` to the internal drag
handlers of the WorkspaceThumbnails. We can use this position directly
without transforming it to stage coordinates because the actor is a
child of `Main.uiGroup` and the animation actor will also be a child of
this container.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/121
Add a `animateLaunchAtPos()` method to the AppIcon class to animate the
launch of an app at a given position. This allows for a visual
indication of whether dropping an app icon using DnD was successful at
the position the drop happened in a later commit.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/121
Return the results of calls to acceptDrop that we forwarded to the
Workspace object.
This fixes a bug where app icons that were dragged and released above a
window clone would get animated back to their original position
(indicating that nothing happened) even though they opened correctly.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/121
`AppIcon.shellWorkspaceLaunch()` can easily be replaced by checking for
`AppIcon.app` and calling `AppIcon.app.open_new_window()` directly.
For compatibility and to prevent breaking extensions implementing the
function, keep supporting the `shellWorkspaceLaunch` API in AppIcon
while logging a deprecation warning. Also keep supporting the API on
drag sources (without deprecating it) to allow extensions to define
custom actions on their drag sources.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/121
If the search entry does not have any text typed in and a button press
happens outside of the search entry, we set key focus to NULL to make
the search entry appear unfocused.
This is quite intrusive and can easily cause unwanted focus changes, so
change the captured-event handler to only call `reset()` if the search
entry actually is focused.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/683
Instead of returning and waiting until the old timeout is finished,
start a new idle hide timeout for the overlay when the pointer enters a
window clone. This makes sure the timeout for hiding the overlay after
the pointer left the clone mostly stays the same (except when leaving
the clone via the title or the close button).
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/683
As arrow functions have an implicit return value, an assignment of
this.foo = bar could have been intended as a this.foo === bar
comparison. To catch those errors, we will disallow these kinds
of assignments unless they are marked explicitly by an extra pair
of parentheses.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/731
Calling await in a loop means the asynchronous operations are
run sequentially instead of in-parallel. Usually that's not
what's wanted, so eslint has a rule to warn about this.
However here we use async/await to handle control back to the
mainloop between steps, so running operations sequentially is
actually intended.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/731
The intention of the code is clearly to operate on a copy, but that's
not how the Object constructor works. While it doesn't matter in
practice that we modify the passed-in object parameter, it's still
a good idea to fix the code.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/731
The legacy indent rule currently ignores arrow functions in parameters
to allow callbacks to not align with the other arguments:
this._someFunctionWithFairlyLongishName(arg1, arg2, arg3,
() => {
this._someOtherFunctionWithLongName(arg1);
});
But as ignoring entire nodes means we can end up with arbitrary
indentation, we should drop the exception. While this would make
the above "illegal" under the legacy config, it conforms with the
non-legacy style, so everything should be fine ...
... except that eslint starts to complain about some function args
that should be fine under the legacy config. Maybe it's thrown off
by the function-arg-in-arrow-function-in-function-arg structure, but
rather than figuring it out, let's just move those to the new style.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/725
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
Some more places where the indentation doesn't comply with either
the old or new style. They slipped through because the legacy eslint
configuration accounts for some patterns by plainly ignoring certain
nodes. We'll address that later, first fix up the indentation errors.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/725
When there is a transition, it's likely that we are animating some part
of the desktop, and in such situations we don't want to unredirect
fullscreen windows.
This fixes unwanted unredirection when e.g. hiding a modal dialog by
re-enabling the unredirection after the animation has finished, instead
of when it starts.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/721
Updating the window list in the Looking Glass is a costly
operation: it destroys a whole lot of actors, and recreates
them. This triggers CSS changes, repaints, and allocations.
It is specially bad when paired with Wayland's big number
of window creations and deletions when showing Builder's
and Epiphany's popup window.
Only update the window list in the Looking Glass when it is
visible.
Related: https://gitlab.gnome.org/GNOME/mutter/issues/556https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/719
Since ES5, it is possible to create objects with no prototype at all:
let foo = Object.create(null);
Those object won't have any builtin properties like hasOwnProperty(),
which is why eslint added a corresponding rule to its default rule set.
While this isn't an issue that affects our code, there's no harm in fol-
lowing the recommendation and call the method through Object.prototype.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/716
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
Since disabling an extension will lead to disabling and re-enabling all
following extensions in the list, always disable multiple extensions by
looping through the list in reverse order.
This lowers the execution time of the event handlers quite a bit if many
extensions are installed.
Thanks to Philippe Troin for identifying the problem and proposing the
initial patch to change the extension order when reloading.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/177https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
Only push uuids of newly enabled extensions to the `_extensionOrder`
array if enabling them was successful.
Otherwise, since `_callExtensionDisable()` doesn't remove uuids that
weren't successfully enabled from the array, those extensions get added
to the array multiple times when they're disabled and enabled.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
It's currently possible to circumvent the `sessionMode.allowExtensions`
property: For already enabled extensions one can call reloadExtension
via DBus, for new extensions it's possible by adding the extension to
the enabled-extensions gsettings key and setting the
disable-extension-version-validation key (which triggers a reload of
`this._enabledExtensions`) and then calling reloadExtension via DBus.
So to enforce `allowExtensions` while still allowing to update
extensions and keeping the extensionSystem synced with various gsettings
keys, replace the checks for `this._enabled` with simple checks for
`Main.sessionMode.allowExtensions` inside `_callExtensionInit()` and
`_callExtensionEnable()`.
The remaining checks for `this._enabled` are only small optimizations to
prevent running code on irrelevant sessionMode updates.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
Right now we're only handling added sessionMode extensions correctly on
sessionMode updates, also handle the other case and disable removed
sessionMode extensions on sessionMode updates.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
Instead of only logging a message that loading the extension stylesheet
failed and silently returning we should use `logExtensionError` for that
instead. This also sets the extension state to ERROR and makes sure we
don't try to enable it again.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
If the extension doesn't exist in the `this._extensions` Map, we'd try
to access `extension.dir` on undefined/null. So set the `dir` variable
after checking if `extension` is defined.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/96
Code and comment were based on the old get_input_rect() and get_outer_rect()
method names that were changed to the more appropriate get_buffer_rect() and
get_frame_rect() a long time ago.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/713
The animation was removed in commit 6a00a504d4 for consistency with
other menus. However commit a9b12d5d73 then *added* animations to
those just four minutes later.
So add back the original animations for consistency, both with menu
closing and with other menus.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1595
Remove transitions of the `slide-x` property of the layout manager
before we set the property to a fixed value, otherwise the transitions
might still be running and change the value after we set it.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/707
When selecting an area for screenshot we monitor the events while we've valid
coordinates in order to redraw the rubber band.
However, we don't stop ignore the motion events after button release and so
while animating. This might cause an unwanted effect if moving the mouse away
during fade out that is way more visible slowing-down the animations.
To fix this ignore any motion event once we've set the results.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/711
Add a new popover with a regular entry + button to rename
folders. The layout is similar to other GNOME applications.
The popup is implemented as a PopupMenu subclass, leaving
the grab management to PopupMenuManager.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/675
We disable and enable extensions inside the `notify::active` signal
handler, but we shouldn't do that in case the change didn't come from
the user but because something else changed the state of the extension.
This causes an issue when the extensionPrefs window is open and the
session gets locked: The extensions are temporarily disabled by the
shell, extensionPrefs updates its switches on the state change and adds
those extensions to the `disabled-extensions` gsettings key inside the
signal handler. Now when the session is unlocked again, the extensions
won't be enabled again since they're forced-disabled.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/705
We're using a vfunc override for `get_paint_volume` to exclude children
with an opacity of 0 from the paint volume and thus decrease the size of
the area we need to paint.
Now if the paint volume is requested during the spring animation (the
real icons are hidden using an opacity of 0 and clones are used for the
animation), `get_paint_volume` returns a paint volume with a height of
0. After that, the spring animation finishes and the icon-opacities are
set to 255 in `_resetAnimationActors`, and since we cache paint volumes
and there's no reason for Clutter to assume it got invalid, the icons
end up not being painted.
Fix this by queuing a relayout of the grid when the opacity of a child
is changed from or to 0, which manually invalidates the paint volume.
The reason why this is not an issue with the paginated icon grid
(all-apps view) is probably because StScrollView invalidates the paint
volume a lot more often than regular containers.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1502
Extensions might emit JS errors explicitly or implicitly, however GNOME
Shell doesn't present any stack trace for those making them quite hard
to debug.
Make this easier by logging errors with logError() whichs includes the
stack dump.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/700
When the GridSearchBase actor is destroyed we should remove the
ongoing later that might try to access to invalid resources.
To do this, add an _onDestroy() callback function to SearchResultsBase
and override it in GridSearchBase.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/700
Easing calls on show/hide functions have some parameters in common whether the
radial effect is enabled or not.
So instead of doing repeated calls with similar parameters, initialize common
values in params objects.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/700
If the resource scale or the scale factor changes while the animation
is playing, we need to stop the animation and start it again once the
texture is loaded, as the idle might try to access an invalidated
animation child otherwise.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/700
Commit 21e14bd46f fixed this for the
brightness slider, but we have the same problem for volume too. When the
volume is muted - for example in Settings or via a media key, we update
the slider to '0' to indicate this visually. But we also actually invoke
the slider's callback to *set* the volume to zero. That means that the
previous level is overwritten so it can't be restored when unmuting.
The fix is the same - when we update the slider internally ourselves,
don't call the signal handler.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1557
We now do 2 things along Xwayland startup/shutdown:
- Start or stop the gnome-session-x11-services target, that will
pull all X11 related services that the session might depend on.
- As we start ibus-daemon manually, trigger a restart in order to
toggle the XIM daemon on and off along with Xwayland presence.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/680
We may need to restart it with different arguments, so make it
possible to do that. Also, avoid to just restart it on _clear(),
this is now most likely through our --replace call than it is
through ibus-daemon eg. dying, avoids some noise in logs as
there is already an ongoing ibus-daemon.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/680
An Endless OS system was found in the wild with a malformed
.local/share/gnome-shell/notifications which causes _loadNotifications()
to raise an exception. This exception was not previously handled and
bubbles all the way out to gnome_shell_plugin_start(), whereupon the
shell exit(1)s. The user could no longer log into their computer.
Handle exceptions from _loadNotifications(), log them, and attempt to
continue. Ensure that this._isLoading is set to 'false' even on error,
so that future calls to _saveNotifications() can overwrite the (corrupt)
state file.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1552
The updatesPermission is currently initialized synchronously, which
blocks the Mainloop for quite some time and therefore slows down startup
of the shell, let's do it asynchronously instead.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/689
Since we now put a short timeout in before the start of the actual pie
timer we don't start the timer as often as we used to. This allows us to
create a new PieTimer object each time a timeout is started and
therefore play a finish animation independently of other (new) timeouts.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/688
If the circle is complete and the pie timeout finished, we don't need
the lines to the center point indicating the ends of the pie anymore.
We just draw a clean circle instead, which allows for a zoom-out and
fade animation of the circle when we're done.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/688
If the pie timeout has finished successfully there's no need to cancel
the pie animation, instead we can just wait for that animation to finish
and show some visual feedback like a zoom-out animation to indicate the
click afterwards.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/688
Fade the pie timer in using a duration of 1/4 of the timeout and a
EASE_IN_QUAD animation. This significantly reduces flickering of the pie
timer while moving the cursor and makes the timer less distracting.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/688
gjs no longer has an implicit dependency on GTK 3.0, so without
requesting an explicit version, we will get the highest available.
Our code isn't GTK-4 ready, so request 3.0 explicitly.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/686
Before the move to Clutters implicit animations with 0846238f6 and
bf497ed64, we used Tweener to do a fake-animation of the opacity and
Tweeners `onUpdate` signal to queue a repaint of the PieTimer everytime
Tweener tries to update the animation.
Now, with Clutters implicit animations, there is no `onUpdate` signal
anymore and also `notify::opacity` no longer gets emitted since the
value doesn't actually change. This lead to the PieTimer no longer being
repainted, which broke the animation.
Fix this by implementing the current angle of the pie using a custom
GObject property `angle` and animating this property using the new
`actor.ease_property` method.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1533
When cancelling the animations of the icon grid, right now we simply
destroy all the clones without resetting the opacity and making the
actor reactive again. So if the spring animation to show the grid is
cancelled by pressing a key to start a search, the icon clones would be
destroyed, but the icon-opacity would still be set to 0. Now if the
Escape key is pressed, viewSelector will show the last active page (ie.
the iconGrid) without a custom animation and only fade in the page, and
because the icons still have an opacity of 0, they will be invisible.
Fix this by always restoring the opacity and reactive property of the
original actors if the animation is cancelled instead of only destroying
the clones.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/678
Since we set the proxy value when the slider changes and set the slider
value on proxy property changes, we run into a cycle.
Before commit 3d3dca4aa this was addressed by not notifying on all slider
changes, but only in reaction to direct user action. Given that since the
splitting out of the BarLevel class those events are handled in a subclass,
that approach is at least unconvential and fairly fragile.
Instead, make the brightness indicator ignore any changes to the slider it
initiated itself.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1500
With 8b368d010 we fixed a bug where the onComplete callback was always
called no matter whether the transition was interrupted before or not.
This exposed another bug: viewSelector depends on this behaviour when
fading out pages: After fading out a page, we call `this._animateIn` to
show the new page. Now if the fade-out animation gets interrupted, with
the correct behaviour of onComplete we end up not showing a new page and
the viewSelector remains empty instead. One case where this happens is
when pressing a key to start a search during the overview-animation.
Obviously we also want to show the new page in case the fade-out
animation was interrupted, so use the onStopped callback instead of the
onComplete callback here.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/674
An actor ease callback could destroy the actor, in such case we should do not
touch the actor anymore.
So, before calling the callback, reset restore the easing state and don't
perform any further action with it.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1507
When a drag is cancelled and the source actor
is visible, the drag actor is animated back to
the source position. The scale that the drag
actor will become is calculated as:
scale = this._dragActor.width / sourceScaledWidth
However, this is wrong; what we wanted to do
is the opposite:
scale = sourceScaledWidth / this._dragActor.width
Fix the scale calculation to match the math
above.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/671
Create a new folder when dropping an icon over another
icon. Try and find a good folder name by looking into
the categories of the applications.
Delete the folder when removing the last icon.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/671
Because the Dash icons are not drop targets themselves,
add a tiny DashIcon class, which is an AppDisplay.AppIcon
subclass, and disable all DND drop code from it.
Show a folder preview when dragging an app icon over another
app icon.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/671
As per design direction, scale and fade the app icon
when starting dragging it, and show it again if the
drop is accepted. Clutter takes care of animating the
rest of icon positions through implicit animations.
Scale and fade the dragged icon while it's being dragged.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/671
Since the `notify::allocation` signal will obviously get emitted while
the actor is inside an allocation cycle and we might end up doing
changes to its allocation inside `updateSearch` by hiding or showing the
actor (which queues a relayout), we get a warning from Clutter.
Fix this by delaying the call to the parent method until the next
redraw, which should happen a few moments after the current relayout.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/672
Since commit 1a27ff6130 we use the
allocation width of the GridSearchResults actor to calculate the max
number of results that can be shown for this search provider.
On the first run of the search, when no previous (cached) allocation is
available for the actor of GridSearchResults, the allocation width used
in `_getMaxDisplayedResults` will be 0, which in turn will make
`updateSearch` filter out all results returned by the search provider.
Now if this search provider is the only search provider that's enabled,
after calling `updateSearch`, the `SearchResults` class will call
`_updateSearchProgress` to check if any results are visible, assume
nothing was found and therefore hide the scrollView. This in turn causes
the GridSearchResults actor to not get a new allocation, which prevents
our code to fixup the max number of results on `notify::allocation` from
working: The number will continue to be 0 and we'll never show any
results.
To fix this regression, return -1 in `_getMaxDisplayedResults` if the
allocation width is 0 to inform `updateSearch` that we can't calculate
the maximum number yet and interpret a return value of -1 as "show all
results" in `updateSearch`. The same problem would probably also appear
if the allocation width is anything between 0 and the width of the
iconGrid with one icon in it, although this might as well be a valid
width in case a very small screen is used or with very large icons. So
let's only check for a width of 0 and hope the GridSearchResults actor
won't get weird temporary allocations in that range.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/672
Just as we animate the apps launch using the zoom out animation if the
'new-window' action provided by the app is launched, we should also show
this animation if the 'activate-discrete-gpu' action provided by the app
via its AppInfo is launched.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/673
For the "New Window" entry we add to the AppIcons popup menu we should
always animate the app icon if the menu entry is activated as it was
intended by commit 62786c09a8.
For the "Launch using Dedicated Graphics Card" entry we can also always
show the animation if the entry is activated since the entry should only
be visible if the app is stopped.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/673
Clocks has exactly the same issue as Weather: Its integration currently
relies on accessing its settings directly, which isn't possible when
the app is sandboxed.
Fix this the same way we did for Weather, by adding our own setting
and syncing it with the app via a custom D-Bus interface.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1158
We add our own "New Window" menu entry if the app doesn't already
provide a 'new-window' action. For this menu entry, we show the zoom out
animation on the app icon when the user clicks the entry.
To be consistent in case the app already provides its own 'new-window'
action via its AppInfo, also show the zoom out animation when this
action is activated.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/662
As pointed out by designers, fading it signals that the
icon grid is not a drop target, when now it actually is.
Remove the fade effect applied to the icon grid when
dragging. Since this is the only caller of fadeIn() and
fadeHalf(), also remove these methods.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/664
App icons inside folders are already animated when the folder is
opened, but moving an app icon from a folder doesn't, making the
transition abrupt.
Fortunately, it's easy to detect icons that were previously hidden
but are not anymore.
Add an animation to these icons when showing.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/664
This is necessary for being able to drag application icons
to folders in different pages.
Add a drag motion handler to AllView and handle overshoots
when dragging. Only handle it when dragging from AllView.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/664
After dropping an application into the folder icon, the
list of applications is updated but the folder icon itself
is not.
Introduce BaseIcon.update() and call it from FolderIcon
when redisplaying.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/664
The event blocker is an actor that is added in between the
icon grid and the app folder popup in order to guarantee
that clicking outside the app folder will collapse it.
However, the next patch will require allowing dragging events
to be passed to folder icons, and the event blocker gets in
our way here, preventing drag n' drop to work properly.
Add an API to inhibit the event blocker. This API will be
used by the app folders while an item is dragged.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/664
When plugging in a device with sensors that are unsupported by
iio-sensor-proxy, the proxy may quit so fast that the name disappears
from the bus before we get to construct the SensorProxy in response
to the name-appeared handler, resulting in the following warning:
JS ERROR: TypeError: this._sensorProxy is null
_sensorProxyAppeared/this._sensorProxy<@resource:///org/gnome/shell/misc/systemActions.js:217:17
_makeProxyWrapper/</<@resource:///org/gnome/gjs/modules/overrides/Gio.js:243:21
Address this by creating the proxy unconditionally instead of monitoring
the bus name, and using the g-name-owner property to determine whether
iio-sensor-proxy is active.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1357
When transitioning to or from the overview, windows travel
a certain distance between their real desktop position and
their place in the overview window grid. The less this travel
distance is, the smoother, more polished, and less jarring
the overall transition looks. This is why it makes sense to
try reordering and repositioning windows to minimize their
travel distance. That being said, there are other factors
that impact the quality of the overview layout, such as how
much the windows get scaled and what portion of the overall
available space they take up.
The existing code tries to minimize the travel distance by
sorting the windows in each row by their horizontal position.
There are, however, two problems with this implementation.
First, it compares the coordinates of windows' left edges as
opposed to their centers, which means it yields unexpected
results when a small window is positioned next to the left
edge of a large window. Second, it completely disregards
vertical coordinates, instead assigning windows to the grid
rows using their monotonically increasing window numbers,
effectively vertically sorting them by the order they were
created in.
This commit changes both vertical and horizontal ordering
to work based on the coordinates of the geometric centers
of the windows. That is to say, windows are first assigned
to grid rows based on the vertical coordinates of their
centers, and subsequently sorted inside each row based on
the horizontal coordinates of said centers. In my testing,
this leads to a much more intuitive and visually pleasing
window placement.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/267
GDBusProxy::g-properties-changed is also emitted when the name drops from
the bus, at which point any properties will be null. That's not a valid
gsettings value, so to avoid the corresponding warning, move the g-name-owner
check accordingly.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1158
Those checks were carried over from the very first DND implementation;
if they were ever actually required at all, this is no longer the case
as we moved away from Tweener for all our animations.
The number of cases where an extension is still using Tweener, creates
draggable actors, *AND* requires the checks for proper functioning
should be indistinguishable from zero, so drop the code.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/669
By now, Tweener is used exclusively to animate changes to the
StAdjustment:value property. But not for long, as now that we
implement the same transition API as Clutter.Actor, we can
re-use the existing convenience method for property transitions
for adjustment changes as well.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/669
The tracking was important in an earlier iteration, but as the helper
functions now remove overwritten transitions before setting up the
new ones, we can just as well connect to the ::stopped signal directly.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/668
This is rather embarrassing - we currently confuse the transition with
the finished parameter, which means we always run the onComplete handler
no matter whether the transition was interrupted or actually completed.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/668
Commit 0f178c3b3d added a shortcirtuit to avoid running
an animation on an invisible actor. However, it introduced
a bug where the current page is not properly updated. That
leads to the wrong set of icons being animated under some
circumstances.
Update the current page even if we bail out early.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/667
Properties that aren't marked as animatable don't support *implicit*
animations, but they can still be animated with explicit transitions.
Use the newly added convenience method to cut down further on Tweener
usage.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
While we are now using implicit animations for all animatable properties,
there are still some cases where we animate other actor properties (for
example from a custom subclass) or associated objects like effects.
Those can still be animated using Clutter animations, as long as we use
the explicit API rather than implicit animations. Again this API is
cumbersome and tricky enough to warrant a convenience wrapper.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
Clutter animations work on GObject properties on animatables. The
last commit took care of the latter by turning all animated objects
into actor subclasses, now it's time to make all properties used
in Tweens into GObject properties.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
We have a couple of places where we don't tween the actor, but a
custom property on the delegate object. In order to move those
to Clutter animations, we will need an animatable, so turn those
objects into widget subclasses.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
The set_brightness() method is the most convenient way of controlling
the effect's brightness, but Clutter animations only deal with properties,
so start using the (ClutterColor) brightness property instead.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
Currently WindowDimmer exposes a JS property that is used to control the
underlying effect. This works fine with Tweener, but not with Clutter
animations which we want to use ultimately.
As a first step towards that, expose a setDimmed() method instead of
the property and handle the animation internally, so it can be adapted
more easily.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/666
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
Setting up implicit animations is more verbose than using tweener, in
particular when setting up a callbacks to run on overwrite or completion.
In order to make its use more convenient, monkey-patch ClutterActor
with an ease() method that works similarly to Tweener.addTween().
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
Being able to slow down animations is a helpful debugging tool; to not
lose it when starting to use Clutter's implicit animations, monkey-patch
the appropriate methods to support our global slow down factor.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
As we currently use Tweener for all animations, we have a single place
for hooking up the enable-animations and slow-down-factor settings.
However that will no longer hold true when we'll start to use Clutter's
built-in animation facilities, so add a small helper function that
applies the necessary adjustments.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
Notifications use a transition that overshoots the target value, however
we can only really do that for the position and not the opacity where
some values would end up out of the valid range.
We currently address this by proxying the actual opacity property in a
javascript property, and clamp it to the valid range in an onUpdate()
callback.
This won't be an option if we want to use Clutter animations, so instead,
use separate tweens for opacity and position.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
Unlike Tweener, which doesn't know or care about actor state, Clutter
will skip implicit animations on actors that aren't mapped. This makes
sense of course, but it will break the page indicator animation we
do on map: When we get notified about the container being mapped, the
individual indicators (which are the actors being animated) are still
unmapped.
Resolve this by deferring the animation to a LaterFunc.
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
Dash items are currently animated via the custom "childScale" and
"childOpacity" properties. However since commit efb3025d8c, those
properties actually control the scale-x/scale-y and opacity properties
of the actor itself (not the child), so cut out the intermediate
custom properties in favor of the "real" ones.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
When expanding a submenu, we currently use a single tween to animate
both the submenu actor and the source arrow. We do this by tweening
a monkey-patched JS property on the main actor, which we then use
to update the arrow's GObject property on updates. As Clutter cannot
animate random JS properties, this trick will prevent us from using
implicit animations here.
The only reason I can think of for using a single tween is to keep
both animations in perfect lock step, but as expansion and rotation
are visually quite distinct, this shouldn't be required, so just
set up separate animations for each actor.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22
Now that redisplaying is a lightweight operation that only
adds and removes what changed, we can not be concerned about
redisplaying on folder changes.
Redisplaying will be necessary when custom order in the app
grid is implemented, in order to update not only which icons
are hidden, but also their position.
Call _redisplay() in AllView when folders change.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
FolderView and AllView currently check if the item is
present in the BaseAppView._items map, in order to avoid
adding the same icon multiple times.
Now that BaseAppView._loadApps() has a different role --
it returns a list with all app icons, and BaseAppView
diffs with the current list of app icons -- checking the
BaseAppView._items map is wrong.
Make sure there are no duplicated items in the temporary
array returned by all _loadApps() implementations. Remove
the now unused BaseAppView.hasItem() method.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
BaseAppView currently removes all icons, and readds them, every
time the list of app icons needs to be redisplayed. In order to
allow animating app icon positions in the future, however, we
cannot destroy the actors of the app icons.
Previous commits paved the way for us to do differential loading,
i.e. add only the icons that were added, and remove only what was
removed.
Make the BaseAppView effectively implement differential loading.
The BaseAppView.removeAll() method is removed, since we do not
remove all icons anymore. BaseAppView._loadApps() now returns an
array with the new apps, instead of putting them directly at the
BaseAppView lists.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
Next commit will introduce differential loading of
app icons, and will reorganize this part of the
codebase.
When doing that, the ideal symmetry of the new code
would be:
* Update BaseAppView._allItems array
* Update BaseAppView._items map
* Update BaseAppView._grid actor
Move the code in _loadGrid() into _redisplay() so that
we can check in-place which new icons need to be added.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
Now that the three views follow the exact same loading routine
(remove all + load apps + load grid), we don't need each view
call loadGrid() directly anymore.
This is an important step in order to animate adding and removing
icons, since now we can diff old and new app icons properly.
Move all calls to BaseAppView.loadGrid() to a single one after
BaseAppView._loadApps(). Also add the underscore prefix, since
this is now considered a protected function.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
FrequentView is another view that is slightly not unified with how
BaseAppView expects subclasses to load app icons. Instead of using
BaseAppView.addItem() and then calling BaseAppview.loadGrid(), it
adds the app icons directly to the icon grid.
Make FrequentView add icons using BaseAppview.addItem(), and load
the icons using BaseAppView.loadGrid().
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
Future patches will diff the old and new icons of views, in order to
animate them when necessary (e.g. adding an app icon to a folder, or
from a folder back to the app grid). In order to do that, all views
must be streamlined in how they load app icons.
Currently, FrequentView and AllView are already following the behavior
expected by BaseAppView, but FolderView isn't. Its icons are loaded by
FolderIcon, and FolderView doesn't implement BaseView._loadApps(),
which makes it impossible to diff old and new apps.
Move the app icon loading routine from FolderIcon to FolderView, by
implementing the _loadApps() method.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645
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
Our current Weather integration depends on poking around the app's
settings, which we cannot do when the app is sandboxed (as its
filesystem is "hidden away" in a container in that case).
So instead, use our own GSettings schema for the settings, and sync
it with GNOME Weather via a custom D-Bus interface.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1158
Since commit 007d30573 we use an actor effect to apply the radial effect and
we pass the effect to the tweener in order to animate it.
However, we always still remove the previously added tween from the actor,
instead that from the actual target.
So, depending the radial effect state, remove the tweens from the proper target
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/653
We currently assume that user icons are square, which is the case when
set by the users settings panel, but not enforced by AccountsService.
Handle that case by moving the pixel size back to the actor and using
an appropriate background-size style property of 'cover' (which means
the smallest dimension of the image is scaled to fit the desired size).
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1144
A generic, introspectable Shader effect is not only more flexible
than a shader actor, it will also make it much easier to turn
Lightbox into an actor subclass and replace Tweener with Clutter's
own animation support.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/651
Due to typecasting being done when converting floats to integers in
gnome-settings-daemon, a volume of 0.9% in g-s-d will end up as 0% in
gnome-shell. This can lead to a mismatch of icons between the volume OSD
(the icon to use is determined by g-s-d itself) and the shells own
volume indicator (the icon to use is determined by the shell using the
volume received from g-s-d).
To fix this, simply get rid of the conversion from float to percentage
in g-s-d and back to floats in the shell and just send a float/double
value on DBus.
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/merge_requests/78https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/385
LevelBar is not really used, all the checks are implemented inside
BarLevel as well and the accessible name is wrong because the osdWindow
doesn't only show the volume, but also the brightness and other things.
The workaround for updating the bars width is also no longer needed now
that we have BarLevel.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/385
There are some cases (for example when tweening value changes), where
the level will be set to the same value it already is at. Avoid those
unnecessary repaints by checking whether the value is already used and
returning if it is.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/385
AppIcon makes itself draggable, and handles the various DnD
routines such as 'drag-begin' and 'drag-end' by making the
Overview emit the appropriate signals.
However, when destroyed, the AppIcon does not try to finish
any drag operations that started. That causes the event
blocker in AllView not to be updated correctly when dragging
icons to outside folders.
Make AppIcon emit 'item-drag-end' when a drag operation
started and it's destroyed.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/643
The functions here are asynchronous to handle control back to the
mainloop while waiting for an action to complete, not to run operations
in parallel. That is, the race condition the rule is protecting against
isn't an issue here, so disable the error.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
For GObject properties, we follow the convention of all-lowercase,
dash-separated names. Those translate to underscores in getters/setters,
so exempt them from the newly added "camelcase" rule.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
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
Those unused arguments aren't bugs - unbeknownst to eslint, they all
correspond to valid signal parameters - but they don't contribute
anything to clarity, so just remove them anyway.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
This was left-over in commit 2743f18af, and probably is the real reason
why the busy spinner wasn't using the shared AnimatedIcon.Spinner class:
The animation there was much slower.
Still, let's keep the code as-is for now, if we really need a different
animation time, we can add an optional constructor parameter to the
Spinner class.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/640
At the moment the only way to open a folder icon is to click on it;
there's no API to open the icon programmatically.
This commits adds an open method and makes the click handler use
it.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/628
When a FolderIcon is opened, it asks the parent view to allocate
space for it, which takes time. Eventually, the space-ready
signal is emitted on the view and the icon can make use of the new
space with its popup. If the icon gets destroyed in the
interim, though, space-ready signal handler still fires.
This commit disconnects the signal handler so it doesn't get called
on a destroyed icon.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/628
It is important that the FolderView of a FolderIcon always
gets destroyed before the AppFolderPopup, since the view
may or may not be in the popup, and the view should
get cleaned up exactly once in either case.
This commit adds a destroy handler on FolderIcon to ensure
things get taken down in the right order, and to make sure
the view isn't leaked if it's not yet part of the popup.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/628
At the moment AppFolderPopup calls popdown on destruction,
which leads to open-state-changed getting emitted after
the actor associated with the popup is destroyed.
This commit handles ungrabbing and closing from an
actor destroy handler to side-step the open-state-changed
signal.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/628
If an icon already exists in an app view with the same id, the
duplicate is not added on a call to addItem. Unfortunately,
since it's not added, the icon actor gets orphaned and leaked.
This commit address the problem by introducing a new hasItem
method and disallowing callers to call addItem with a duplicate
in the first place.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/628
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
The startup/busy indication in the app menu was left out of commit
22e21ad7d1 because it doesn't use a hard-coded image, but as the
image in the CSS is actually the same used by the spinner class,
drop the "custom" styling and use the regular spinner.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/636
Trying to disable an extension that is enabled by the session mode
currently has no effect, which is clearly confusing. We could update
the various extension UIs to reflect that via sensitivity, but being
unable to configure extensions based on which session the user picked
at login isn't obvious either.
So instead, add a 'disabled-extensions' gsettings key to list extensions
that should not be enabled which takes precedence over 'enabled-extensions'
and can be used to disable session mode extensions.
https://bugzilla.gnome.org/show_bug.cgi?id=789852
Now that extension loading and the extensions map are no longer shared
between the gnome-shell and gnome-shell-extension-prefs processes, we
can move both into the ExtensionManager which makes much more sense
conceptually.
https://bugzilla.gnome.org/show_bug.cgi?id=789852
By direclty using the underlying GSetting, whether or not an extension
appears as enabled or disabled currently depends only on whether it is
included in the 'enabled-extensions' list or not.
However this doesn't necessarily reflect the real extension state, as an
extension may be in error state, or enabled via the session mode.
Switch to the extensions D-Bus API to ensure that the list of extensions
and each extension's state correctly reflects the state in gnome-shell.
https://bugzilla.gnome.org/show_bug.cgi?id=789852
