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Olivier Fourdan authored
GtkHeadeBar checks the window type hint to determine if the regular buttons such as menu, maximize or iconify should be visible in the header bar. However, an application may very well use a "normal" toplevel window and set it transient and modal afterwards. In such a case, the iconify button would remain visible, and the user can hide the window, but being a modal, the parent window would remain insensitive. Check for the window type, modality and transient relationship to decide whether or not the regular toplevel buttons should be visible in the header bar. https://bugzilla.gnome.org/show_bug.cgi?id=767052
7c397c62