malcontent-control: Fix use of an uninitialised variable in the carousel
`dest_x` is not set if `gtk_widget_translate_coordinates()` fails, which it can do before the widget is realised. This fixes a valgrind warning, but doesn’t change any user-visible behaviour as far as I can tell. This has been upstreamed to gnome-control-center as https://gitlab.gnome.org/GNOME/gnome-control-center/merge_requests/691. Signed-off-by: Philip Withnall <withnall@endlessm.com>
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@ -97,12 +97,13 @@ mct_carousel_item_get_x (MctCarouselItem *item,
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widget = GTK_WIDGET (item);
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width = gtk_widget_get_allocated_width (widget);
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gtk_widget_translate_coordinates (widget,
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parent,
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width / 2,
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0,
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&dest_x,
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NULL);
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if (!gtk_widget_translate_coordinates (widget,
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parent,
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width / 2,
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0,
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&dest_x,
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NULL))
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return 0;
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return CLAMP (dest_x - ARROW_SIZE,
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0,
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