loading
Description:
Whether the page is loading.
If set to `TRUE`, [class@TabBar] will display a spinner in place of icon.
If the page is pinned and [property@TabPage:indicator-icon] is set, the loading status will not be visible.
Whether the page is loading.
If set to `TRUE`, [class@TabBar] will display a spinner in place of icon.
If the page is pinned and [property@TabPage:indicator-icon] is set, the loading status will not be visible.