Commit Graph

181 Commits

Author SHA1 Message Date
Florian Müllner
071f92cfb6 cleanup: Remove spaces in object literals
We only adopted this style relatively recently, so there's a bit
more to adjust. Still, it's manageable and another step towards
getting rid of the legacy style.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2866>
2023-08-09 15:10:37 +00:00
Evan Welsh
a751e213f6 js: Port to modules
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1499>
2023-08-06 13:02:49 +02:00
Evan Welsh
64aa871a8a js: Add JSDoc to exported functions and fix incorrect JSDoc formatting
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1499>
2023-08-05 22:16:23 +02:00
Evan Welsh
0705c7a4eb js: Fix linting errors from line shifts
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2794>
2023-06-21 04:50:33 -07:00
Evan Welsh
1e9b906cbc js: Split gi imports to be on new lines to prepare for ES modules
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2794>
2023-06-21 04:50:33 -07:00
Andy Holmes
32b9109967 overview: Provide public access for search provider registration
Provide a reasonably public way to register and unregister search
providers, without adding too much API.

`Main.overview.searchController` provides access that may be generally
useful, while `SearchController.addProvider()` and
`SearchController.removeProvider()` provide a simple interface for
extensions.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2783>
2023-06-01 15:54:59 -07:00
sunflowerskater
2d00320a4b general: Rename "application" to "app"
Several places in Shell use the word "application". However,"app"
is a more common term nowadays, so update strings accordingly.

https://gitlab.gnome.org/Teams/Design/initiatives/-/issues/123
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6202

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2614>
2023-02-07 14:46:28 +00:00
Jonas Ådahl
73e0f02b1d overviewControls: Don't hide destroyed child widget on unmap
When we unmap, the child widgets have already been destroyed, so we
shouldn't try to. To detect this, delete the references we keep to them
on destroy, and null-check the hide call.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2623>
2023-02-06 18:10:01 +00:00
Jonas Ådahl
ed2a11ba57 overviewControls: Update work area also on monitors-changed
The cached work area, which is the work area of the primary monitor,
effectively depends on two properties - the (global) work area and the
primary monitor - and we are only tracking changes to one of them. Also
track monitor changes to also cover the second case.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2623>
2023-02-06 18:10:01 +00:00
Alessandro Bono
f23ca85f79 overview: Make preparation to enter/leave overview explicit
This give us more control on when the preparation happens and will be
used in the subsequent commit.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2532>
2022-11-25 15:19:37 +00:00
Alessandro Bono
b8b8919563 overviewControls: Group prepare to enter/leave overview code
Move preparation code into their own functions. These functions will be used
in order to separate the animation control into two steps.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2532>
2022-11-25 15:19:37 +00:00
Jonas Ådahl
fe9c2b8df6 overviewControls: Don't update work area box when headless
When headless, we don't have a monitor we can derive a size from, so
don't even try, just let it be updated when we actually have a monitor
that will show stuff.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5831
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2478>
2022-09-15 11:51:08 +00:00
Ivan Molodetskikh
841599d475 overviewControls: Minor style fix
Since I'm forced to fix the spaces for the workAreaBox change, might as
well fix them in the nearby lines.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2395>
2022-08-01 00:48:07 +00:00
Ivan Molodetskikh
8562606ad1 ControlsManagerLayout: Cache workAreaBox
Allocation runs every frame during the overview animations, so we want
to do as little work there as possible. Cache the work area box
computation.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2395>
2022-08-01 00:48:07 +00:00
Ivan Molodetskikh
c3284eb8ac ControlsManagerLayout: Use primaryMonitor
ControlsManager already hardcodes primaryMonitor, so do it here too to
skip an expensive search.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2395>
2022-08-01 00:48:07 +00:00
Daniel van Vugt
2127222b39 overview: Remove desktop fade logic
It existed to fade out/in `nautilus-desktop` for the overview, but it only
ever worked for X11 sessions (`Meta.WindowType.DESKTOP`) and
`nautilus-desktop` no longer exists anyway.

While I had suggested extending it in the past (!1395), that work was
never finished and since then the DING extension has implemented its
own visibility toggling. There seems little value in keeping the old
fade logic around in gnome-shell. Removing it actually fixes a bug with
DING (https://launchpad.net/bugs/1965072).

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2244>
2022-03-20 21:57:51 +00:00
Florian Müllner
5d1d4b56c6 overviewControls: Do consider work area for HIDDEN state
While we don't want to position overview elements according to
the work area, it does apply in the session when the overview
is hidden. That is, we should take it into account for the HIDDEN
state, so that transitions from and to the overview are correct.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2223>
2022-03-05 22:29:57 +00:00
Florian Müllner
a30363140c overviewControls: Ignore work area again
The work area is really the space that is available to application
windows. Applying it to the overview is therefore questionable,
in particular given that

 - X11 clients that affect struts aren't shown
 - elements added by extensions have other means
   to affect the overview layout

Not applying the work area to the overview also makes ignoring
actors' visibility for struts acceptable again: Assuming that
strut actors are only hidden when the monitor is in fullscreen,
freezing the work area instead of updating it for windows that
are fully obscured by a fullscreen windows makes perfect sense.

This reverts commits 81a1e294f8 and 2b074882f4.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2223>
2022-03-05 22:29:57 +00:00
Florian Müllner
26235bbe54 js: Use (dis)connectObject()
Start using the new methods to simplify signal cleanup. For now,
focus on replacing existing cleanups; in most cases this means
signals connected in the constructor and disconnected on destroy,
but also other cases with a similarly defined lifetime (say: from
show to hide).

This doesn't change signal connections that only exist for a short
time (say: once), handlers that are connected on-demand (say: the
first time a particular method is called), or connections that
aren't tracked (read: disconnected) at all.

We will eventually replace the latter with connectObject() as
well - especially from actor subclasses - but the changeset is
already big enough as-is :-)

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1953>
2022-03-04 14:14:37 +00:00
Jonas Dreßler
b9abf6fcf5 overviewControls: Factor in margin-bottom for dash startup animation
We set a margin-bottom on the dash to give it some margin towards the
monitor edge, we need to factor in this margin when moving it outside of
the monitor for our animation.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2191>
2022-02-16 20:08:44 +00:00
Florian Müllner
1cee7e6760 overviewControls: Handle keyboard navigation
The old view selector used to handle initiating keynav into pages.
That code became inactive when non-search related functionality
was moved elsewhere, and was finally removed in commit cf41f4a527.

We still want the keynav behavior it provided, so add similar code
to overview's control manager.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4056

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2124>
2022-01-27 22:49:42 +00:00
Robert Mader
ee41dfdb8c ControlsManager: Propagate unmap before hiding the WorkspacesDisplay
Hiding the `WorkspacesDisplay` triggers a reallocation of the
`ControlsManagerLayout` which can fail with the following error:
```
JS ERROR: TypeError: workspace is undefined
_getSpacing@resource:///org/gnome/shell/ui/workspacesView.js:229:13
vfunc_allocate@resource:///org/gnome/shell/ui/workspacesView.js:355:18
vfunc_allocate@resource:///org/gnome/shell/ui/overviewControls.js:200:33
vfunc_hide@resource:///org/gnome/shell/ui/workspacesView.js:1070:38
vfunc_unmap@resource:///org/gnome/shell/ui/overviewControls.js:672:33
hideOverview@resource:///org/gnome/shell/ui/layout.js:312:28
_hideDone@resource:///org/gnome/shell/ui/overview.js:617:32
onComplete@resource:///org/gnome/shell/ui/overview.js:390:37
_makeEaseCallback/<@resource:///org/gnome/shell/ui/environment.js:134:13
_easeActorProperty/<@resource:///org/gnome/shell/ui/environment.js:298:60
```

This can be reproduced by closing the overview with the three-finger
gesture.

Thus propagate the unmap before hiding the `WorkspacesDisplay`.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2088>
2022-01-09 16:50:48 +01:00
Marco Trevisan (Treviño)
81a1e294f8 ControlsManagerLayout: Allocate respecting the work area
We build controls layout using the whole monitor vertical space as
available, however extensions or external apps in X11 may reduce the
workarea size horizontally and the shell should always take care of it.

Given that we're already assuming that the allocation is monitor-based
and that we're adjusting it to the workarea, we can just make it more
explicit by using a workarea box that is used as the allocation area.

As per this, we also apply the same logic of applied to the vertical
dimension to the horizontal one.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1892>
2021-07-17 00:25:50 +02:00
Marco Trevisan (Treviño)
2b074882f4 ControlsManagerLayout: Consider workarea height for the available space
We always consider the whole workarea space to be available when
computing the controls manager layout, however this may not be the truth
when using extensions such as Window List which are reducing the work
area size.

So take care of it, reducing the box height.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4330
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1892>
2021-07-17 00:25:50 +02:00
Marco Trevisan (Treviño)
f164e08688 ControlsManagerLayout: Use the workarea size to compute the available height
To compute the available height for the layout we're currently using the
panel position, while this works for the current and default setup, the
shell may be configured to use a different workarea, so we should rely on
it to compute the available space, instead of a specific widget.

So get the current monitor index for the current view and use its coordinates
instead.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1892>
2021-07-17 00:25:50 +02:00
Florian Müllner
dc1aec5673 overviewControls: Fix warning on shutdown
ClutterActor unsets its layout manager's :container property during
dispose, so the corresponding vfunc should handle being passed NULL.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1909>
2021-07-08 23:17:01 +00:00
Harshad Gavali
177b36f82b overviewControls: Avoid hiding early AppDisplay when transitioning to Session
When transitioning from AppDisplay to Session,
AppDisplay should be visible throughout the transition.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4214

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1886>
2021-06-13 00:51:35 +02:00
Sebastian Keller
77023135ac overviewControls: Stop transitions when starting a gesture
When starting a gesture to open the overview while a transition to hide
the overview is running, Overview._shown will be first set to false when
starting the transition and then to true by the gesture before the
`onComplete` callback is called. The `onComplete` callback in this case
is `Overview._hideDone()` which starts a transition to show the overview
again which also emits the `showing` signal. Since the gesture emits a
`showing` signal as well, this results in two consecutive `showing`
signals without a `hiding` signal in between.

This breaks the `searchControler` which adds a key press handler to
start the search on `showing` and removes it on `hiding`. So every time
this happens a new handler that will never be removed is added,
resulting in the first key press being repeated.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4004
Related: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3819
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1828>
2021-04-29 17:58:45 +00:00
Florian Müllner
28723ac088 overviewControls: Support double-super when animations are off
When super is pressed again during the overview transition, we shift
up to the app grid. That means that the feature currently doesn't
work when animations are disabled (like in a VM), because there is
no transition in that case.

Address this by adding a time-based fallback in that case, i.e.
shift up when a second super-press occurs within 250ms after the
first one.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4121

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1811>
2021-04-19 20:24:54 +00:00
Jonas Ådahl
1f0ef7fb46 workspaceThumbnail: Update monitor index on 'monitors-changed'
For the primary monitor workspace thumbnail, we must keep the monitor
index in sync with what is currently the primary monitor index,
otherwise we might end up trying to move windows to non-existing
monitors.

For example, if the primary monitor index was 1 when the thumbnail box
was created, but later, the primary monitor index changed to 0, with the
other monitor being turned off, moving a window to one of the workspaces
on the workspace thumbnail, gnome-shell would attempt to move it to the
monitor with the index the primary monitor had in the past, with the
problem being that that monitor no longer exists.

Fix this by listening on the 'monitors-changed' signal on the layout
manager, and update the monitor index of the primary workspace
thumbnails box. Make sure to connect to the signal before creating the
thumbnails box, as the thumbnails box itself will listen to the signal
and recreate its actual thumbnails, and it must do this with the up to
date monitor index.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4075
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1810>
2021-04-14 15:43:09 +00:00
Georges Basile Stavracas Neto
eb96288738 overviewControls: Use correct state when updating AppDisplay visibility
When OverviewControls goes from HIDDEN to APP_GRID, it constantly checks
if AppDisplay needs to be visible or not by checking the current overview
state is bigger than WINDOW_PICKER. Turns out in this case this check is
problematic, because when the current state trespasses WINDOW_PICKER, the
layout manager will have already positioned AppDisplay halfway to its final
position.

Use either the final or the current state, whichever is biggest, when updating
the AppDisplay visibility. It optionally allows passing the overview state
params to _updateAppDisplayVisibility() so that we avoid a few trampolines to
recaltulate the adjustment state.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1805>
2021-04-12 12:06:30 -03:00
Jonas Dreßler
d49606bbaa overview: Get rid of panel ghost actor
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>
2021-03-13 22:13:25 +00:00
Jonas Dreßler
ae23ad372d overviewControls: Return zero preferred size
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>
2021-03-13 22:13:25 +00:00
Jonas Dreßler
c239cd398d overviewControls: Hide the appDisplay when it's not shown
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>
2021-03-13 22:13:25 +00:00
Georges Basile Stavracas Neto
c4e43efb1e overview: Implement startup animation
The new startup animation consists of rising the Dash from the bottom,
falling the search entry from the ceiling, and going from HIDDEN to
WINDOW_PICKER with an opacity applied.

One little trick from IconGridLayout was added to ControlsManagerLayout,
which is a promises-based wait for allocation. This is required to make
sure that the transformed position of the search entry is valid, which
is only the case right after an allocation.

This animation also ensures that the overview is shown right on startup.

For session modes that do not have an overview, continue using the same
fade + scale animation.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1678>
2021-03-02 23:14:07 +00:00
Georges Basile Stavracas Neto
930d0b6151 overviewControl: Store search entry container
It'll be used by the next commit.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1678>
2021-03-02 23:14:07 +00:00
Florian Müllner
2731d35723 workspaceThumbnails: Pass monitor index to constructor
We'll soon add workspace thumbnails on secondary monitors as well,
so set the monitor explicitly instead of assuming the primary one.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1735>
2021-03-02 21:56:30 +00:00
Florian Müllner
f28f7eddb1 overviewControls: Shift up on double-super
Right now a second super press during the overview transition hides
the overview again. Change that behavior to shift up to the app grid
instead, which is more useful.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1736>
2021-03-02 15:36:26 +01:00
Florian Müllner
1ad45a8232 overviewControls: Handle overlay key
It's where all the fun state is handled now, so move the super-key
handling there as well, in preparation of making it a bit more
sophisticated.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1736>
2021-03-02 15:36:26 +01:00
Alexander Mikhaylenko
8eda12e6d7 overviewControls: Use easeOutCubic transition for overview
Swipe tracker duration is intended to be used with easeOutCubic only.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1732>
2021-02-28 19:57:53 +05:00
Florian Müllner
e0c0662164 overviewControls: Remove superfluous max()
We don't need to call Math.max() to figure out the maximum of a
single value :-)

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1709>
2021-02-22 13:10:02 +01:00
Florian Müllner
a73bea02e8 workspaceThumbnails: Animate showing/hiding
Right now the minimap only hides itself in case of a single static
workspace. That's not only an edge case, but also not expected to
change while the overview is visible, so changing the visibility
without a transition is fine.

However that is about to change, and we'll hide the minimap as well
when there are fewer than three workspaces. As that condition is
very much expected to change from within the overview, the transition
should be animated.

Implement that via a new :collapse-fraction property on ThumbnailsBox,
and use that to transition both the height of the box itself and the
scale of the individual thumbnails.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3739

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1696>
2021-02-19 01:13:02 +01:00
Florian Müllner
f239179682 workspaceThumnails: Add :should-show property
We currently have two components that show or hide the minimap:

 - the thumbnails hide themselves in case of a single static workspace
 - overview controls show the minimap when no search is active

That obviously doesn't work correctly.

To fix this, change thumbnails to set a new :should-show property instead
of the visibility, and let the overview controls take it into account
when changing the visibility.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3739

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1696>
2021-02-19 01:08:48 +01:00
Florian Müllner
f4b88aac04 overviewControls: Add shortcut for shifting through overview
This is the same as the vertical swipe gesture, but for keyboard
junkies: Analoguous to the <super><alt>left/right shortcuts for
switching between workspaces, add <super><alt>up/down to shift
between session, window picker and app grid.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1695>
2021-02-18 19:55:31 +00:00
Carlos Garnacho
cd506d45ef overview: Make 3fg vertical swipes bring overview and app grid
The gesture internally manipulates the main adjustment so one swipe
up brings up the overview, and a second swipe up brings the app
grid. The gesture also works in the other direction to get out of
the overview.

Internally, this is delegated on the OverviewControls, so the
adjustment is not leaked out of there. This however meant open
coding the gesture interaction so it can be directed from
overview.js code.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1643>
2021-02-17 14:06:11 +01:00
Carlos Garnacho
ddb8782179 overviewControls: Add "gesture-in-progress" property on the state adjustment
This will be set whenever an event controller is manipulating the adjustment.
It should enter the same transitional state it does for animations. This
will be used by the overview gesture.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1643>
2021-02-17 14:06:11 +01:00
Georges Basile Stavracas Neto
c0a4d90847 overviewControls: Limit Dash height to 15% of the overview's
Back when the Dash was vertical, the size of each item was calculated
solely based on the available height. After making the Dash horizontal,
this was swapped by the available width. However, when the height of the
Dash decreases, the current code results in never scaling them up ever
again.

Fix that by making ControlsManagerLayout explicitly pass the maximum Dash
sizes. Remove the 'notify::width' handler that served the same purpose.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3651

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1638>
2021-02-11 22:31:50 +00:00
Georges Basile Stavracas Neto
c8f1dca3c7 Rename ViewSelector to SearchController
Rename ViewSelector to SearchController, since ViewSelector now effectively
only handles search. Rename the file correspondingly as well.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1667>
2021-02-11 21:14:36 +00:00
Georges Basile Stavracas Neto
27627bd40a viewSelector: Cleanup pages
Remove the dummy applications page that was introduced as a temporary
step. Replace the 'page-changed' and 'page-empty' signals with a 'search-active'
boolean property.

Remove ViewSelector.ViewsPage since it's now unused, and all the page handling
mechanism. At last, since we don't use any ShellStack features anymore, simply
make it a St.Widget with a ClutterBinLayout as the layout manager.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1667>
2021-02-11 21:14:36 +00:00
Georges Basile Stavracas Neto
bf1fa3879f workspacesView: Interpolate against relative workspace boxes
The overview transition consists of getting the initial and final
states of the overview adjustment, derivating various other internal
states from them (such as the fit mode, opacities, translations, etc),
and finally interpolating the allocation boxes.

When interpolating between the fit mode, WorkspacesView uses the current
allocation box to derivate the SINGLE and ALL fit mode boxes. However,
that creates a curved path during overview transitions. What we really
want to do here is calculate the fit mode box relative to the corresponding
overview state. For example:

 +----------------+----------+------------------------+
 | Overview State | Fit Mode | Workspaces geometry    |
 +----------------+----------+------------------------+
 | HIDDEN         | SINGLE   | Cover entire screen    |
 | WINDOW PICKER  | SINGLE   | Between minimap & Dash |
 | APP GRID       | ALL      | 15% screen height      |
 +----------------+----------+------------------------+

Using the table above as the reference, when the overview transitions
between WINDOW PICKER and APP GRID, we must interpolate between
(SINGLE fit mode @ between minimap & Dash) and (ALL fit mode @ 15% screen
height). That way, we always interpolate the final boxes, which corrects
the odd path that workspaces follow during this transition.

Make the WorkspacesView of the primary monitor use these cached boxes
when the overview is in the middle of a transition, and the fit modes of
the initial and final state differ, to calculate the workspaces positions.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
2021-02-11 15:50:31 +00:00