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animation: Don't get size information until spinner has a parent

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get_size() in _syncAnimationSize() can't be called until the actor
has a parent, otherwise we'll get an error for calling
st_get_theme_node() prior to the actor being on a stage.

_syncAnimationSize() is called asynchronously via
textureCache.load_sliced_image() and there is currently no guarantee
the actor will actually be "loaded" prior to calling it.

This becomes a more obvious error/issue when refactoring parts of the
Shell loading to also be asynchronous.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2563>
This commit is contained in:
Evan Welsh 2023-06-07 08:47:50 -07:00 committed by Marge Bot
parent 39ed7f83fd
commit 7116d91852
1 changed files with 10 additions and 9 deletions
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19
js/ui/animation.js
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@ -36,6 +36,10 @@ class Animation extends St.Bin {
this._frame = 0;
this._loadFile(file, width, height);
// If the parent changes, we need to re-sync the animation
// size
this.connect('parent-set', () => this._syncAnimationSize());
}
play() {
@ -72,8 +76,8 @@ class Animation extends St.Bin {
let textureCache = St.TextureCache.get_default();
let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
this._animations = textureCache.load_sliced_image(file, width, height,
scaleFactor, resourceScale,
this._animationsLoaded.bind(this));
scaleFactor, resourceScale,
() => this._syncAnimationSize());
this._animations.set({
x_align: Clutter.ActorAlign.CENTER,
y_align: Clutter.ActorAlign.CENTER,
@ -102,19 +106,16 @@ class Animation extends St.Bin {
}
_syncAnimationSize() {
if (!this._isLoaded)
this._isLoaded = this._animations.get_n_children() > 0;
// this.get_size() can't be called without a parent
if (!this._isLoaded || !this.get_parent())
return;
let [width, height] = this.get_size();
for (let i = 0; i < this._animations.get_n_children(); ++i)
this._animations.get_child_at_index(i).set_size(width, height);
}
_animationsLoaded() {
this._isLoaded = this._animations.get_n_children() > 0;
this._syncAnimationSize();
if (this._isPlaying)
this.play();