Jonas Haugesen
0f53f7ecdf
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Typing on a physical keyboard while the home screen is shown now opens the search page and inserts the typed character, so the launcher can be used without touching the screen. It works for any printable key, appends the characters in order even when the user types faster than the launcher can recompose, and the search bar can still be tapped to edit the query with the on-screen keyboard as usual. While the search is driven by the keyboard, the search bar's text field is left unfocused on purpose: a focused text field would make the system show the on-screen keyboard, which is not wanted when there is a physical keyboard. The handler therefore inserts and deletes characters itself, including backspace and enter (to launch the best match). The behaviour is controlled by a new "Search on typing" preference in Settings -> Search, which is enabled by default. Implementation notes: - The key events are intercepted in SharedLauncherActivity.dispatchKeyEvent, which is the only place that sees hardware key events while no view has focus. The scaffold installs the handler while it is shown. - Key events are not forwarded to the search bar's text field, so the characters are inserted into the search view model directly. - SearchBar keeps a TextFieldValue instead of a String so that the cursor moves to the end of the text when the value is changed from the outside. Without this the next typed character ended up in front of the text.