altTab: Set allocation before allocating children

Just as with the last commit, we should not break the assumption made by
Clutter that parents have their allocation set before their children get
allocated, so fix that here, too.

In this case we have to fix it by chaining up to the parent vfunc
override and updating the allocation once more before allocating the
`this._label` child.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/1615


(cherry picked from commit 49d6db34b7)
This commit is contained in:
Jonas Dreßler 2020-03-12 12:37:53 +00:00 committed by verdre
parent 802c2fe532
commit 4097f7943f

View File

@ -1060,25 +1060,25 @@ class WindowSwitcher extends SwitcherPopup.SwitcherList {
vfunc_allocate(box, flags) {
let themeNode = this.get_theme_node();
let contentBox = themeNode.get_content_box(box);
const labelHeight = this._label.height;
const totalLabelHeight =
labelHeight + themeNode.get_padding(St.Side.BOTTOM);
let childBox = new Clutter.ActorBox();
childBox.x1 = contentBox.x1;
childBox.x2 = contentBox.x2;
childBox.y2 = contentBox.y2;
childBox.y1 = childBox.y2 - this._label.height;
this._label.allocate(childBox, flags);
let totalLabelHeight = this._label.height + themeNode.get_padding(St.Side.BOTTOM);
childBox.x1 = box.x1;
childBox.x2 = box.x2;
childBox.y1 = box.y1;
childBox.y2 = box.y2 - totalLabelHeight;
super.vfunc_allocate(childBox, flags);
box.y2 -= totalLabelHeight;
super.vfunc_allocate(box, flags);
// Hooking up the parent vfunc will call this.set_allocation() with
// the height without the label height, so call it again with the
// correct size here.
box.y2 += totalLabelHeight;
this.set_allocation(box, flags);
const childBox = new Clutter.ActorBox();
childBox.x1 = contentBox.x1;
childBox.x2 = contentBox.x2;
childBox.y2 = contentBox.y2;
childBox.y1 = childBox.y2 - labelHeight;
this._label.allocate(childBox, flags);
}
highlight(index, justOutline) {