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workspaceThumbnails: Center thumbnails in workspace navigator

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We always request a natural width based on the maximum thumbnail scale,
but may very well use a smaller scale when allocating. This currently
results in thumbnails being off center, fix this by distributing any
extra space evenly before allocating thumbnails.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1620>
This commit is contained in:
Florian Müllner 2021-02-01 16:28:49 +01:00
parent 779e66ae88
commit de299f0a90
1 changed files with 7 additions and 0 deletions
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7
js/ui/workspaceThumbnail.js
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@ -1302,6 +1302,13 @@ var ThumbnailsBox = GObject.registerClass({
const thumbnailWidth = Math.round(thumbnailHeight * ratio);
const roundedVScale = thumbnailHeight / portholeHeight;
// We always request size for MAX_THUMBNAIL_SCALE, distribute
// space evently if we use smaller thumbnails
const extraWidth =
(MAX_THUMBNAIL_SCALE * portholeWidth - thumbnailWidth) * nWorkspaces;
box.x1 += Math.round(extraWidth / 2);
box.x2 -= Math.round(extraWidth / 2);
let indicatorValue = this._scrollAdjustment.value;
let indicatorUpperWs = Math.ceil(indicatorValue);
let indicatorLowerWs = Math.floor(indicatorValue);