Comment by zelphirkalt

Hm OK thanks for the pointers.

Point 1: I don't know whether tkinter's treeview has screen reader support. I will have to look into that. But what I did already do is to make it focusable, which it wasn't by default, I believe, and add controls like: up, down to select rows, pos1/home and end to go to first row or last row, space to select/highlight a row, I left right and left arrow key for opening and collapsing items, added enter and various other keys to trigger actions for focused row or all selected rows.

Point 2 I definitely have.

Point 3: I defined a shortcut (ctrl+f) that always focuses the text input widget of the filter, but I don't have a letter underlined in the label. The label is actually "Quick search" and not "Quick filter", which means I couldn't underline an "f". But also underlining any letter might indicate, that one could press ALT+letter to focus the input. Maybe I should add another shortcut to facilitate that and then truly underline the appropriate character. Maybe change the label to simply read "Filter" and use the "F".

Point 4 I have. The filter is directly under the treeview/table, and only one TAB away.

Point 5 I don't have, because as the user starts typing in the filter input field, the treeview/table is already being filtered concurrently. Pressing enter is just for when you want to repeat a search and not change the filter term. For example, when the words have changed concurrently due to other actions. There is no dialog to close, because this is all in the main window. I have been thinking about adding a dialog that displays a progress bar, or adding a progress bar in the bottom status bar of the application. There a stop button might be useful. But so far the searching/filtering finishes in milliseconds, so no one would have time to click that stop button.