Linux/Wayland: on-screen keyboard does not appear on first text field focus #100385
Description
On Wayland, the first time a text field is focused the on-screen keyboard does not appear. To make it appear, you have to click the text box again. Confusingly, GNOME always requires two clicks to open it's OSK. On GNOME, the first time you have to click a text field 3 times and after that it's just 2.
The cause is that show() in fl_text_input_plugin.cc calls gtk_im_multicontext_set_client_window(). The first time any of the input module functions are called they initialize. However, initializing on Wayland requires multiple a server roundtrips, which the input module doesn't wait for therefor the first enable does not succeed but subsequent ones do.