Keyboard height reporting not working in windowed mode

[Michael Zanetti]

Currently the OSK height reporting (Qt.inputMethodRect.height) can either report its full height (as it does in staged mode) or not do any height reporting at all (as done in windowed mode currently).

The problem with full height reporting in Windowed mode is that the OSK does not necessarily cover the app with its full height if the app is not touching the bottom edge, so the app would move contents upwards too much. As a quick fix we have disabled height reporting completely for windowed mode. The problem with that is that applications don't move the content any more at all which might make the OSK cover the input field.

We need to add support for partial OSK height reporting. In that case, unity8 would provide information to the OSK how much it covers a particular app window so that the OSK can report that to the app.