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overviewControls: Use specialized class for Overview adjustment

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It'll be useful for the next commits to have a handy 'getState' method
that calculates the progress of any particular transition.

Move the St.Adjustment to a specialized subclass.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
This commit is contained in:
Georges Basile Stavracas Neto 2021-01-15 15:28:23 -03:00 committed by Marge Bot
parent 4cf5898d85
commit 83127bf805
1 changed files with 46 additions and 6 deletions
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52
js/ui/overviewControls.js
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@ -75,6 +75,51 @@ class ControlsManagerLayout extends Clutter.BoxLayout {
}
});
var OverviewAdjustment = GObject.registerClass(
class OverviewAdjustment extends St.Adjustment {
_init(actor) {
super._init({
actor,
value: ControlsState.WINDOW_PICKER,
lower: ControlsState.HIDDEN,
upper: ControlsState.APP_GRID,
});
}
getStateTransitionParams() {
const currentState = this.value;
const transition = this.get_transition('value');
let initialState = transition
? transition.get_interval().peek_initial_value()
: currentState;
let finalState = transition
? transition.get_interval().peek_final_value()
: currentState;
if (initialState > finalState) {
initialState = Math.ceil(initialState);
finalState = Math.floor(finalState);
} else {
initialState = Math.floor(initialState);
finalState = Math.ceil(finalState);
}
const length = Math.abs(finalState - initialState);
const progress = length > 0
? Math.abs((currentState - initialState) / length)
: 1;
return {
transitioning: transition !== null,
currentState,
initialState,
finalState,
progress,
};
}
});
var ControlsManager = GObject.registerClass(
class ControlsManager extends St.Widget {
_init() {
@ -118,12 +163,7 @@ class ControlsManager extends St.Widget {
upper: workspaceManager.n_workspaces,
});
this._stateAdjustment = new St.Adjustment({
actor: this,
value: ControlsState.WINDOW_PICKER,
lower: ControlsState.HIDDEN,
upper: ControlsState.APP_GRID,
});
this._stateAdjustment = new OverviewAdjustment(this);
this._nWorkspacesNotifyId =
workspaceManager.connect('notify::n-workspaces',