Missing "Insert" and "Delete" keys from the Event Key Location table

[denilsonsa]

The 5.6.2. Keyboard Event Key Location section (source) has a table of several keys that have different locations, and a list of all the possible (and known) values for .location for such keys. It also says:

For all other keys not listed in this table, the location attribute MUST always be set to DOM_KEY_LOCATION_STANDARD.

However, the Insert and Delete keys are missing from that table. Those keys are traditionally together with Home/End and Page Up/Down; and they are also available as Numpad0 and NumpadDecimal.

Additionally, both Firefox and Chrome (on Linux) report Insert and Delete with .location = 3 (DOM_KEY_LOCATION_NUMPAD), deviating from the current draft. Thus, I believe the lack of those keys in the UI Events spec was a mistake. (I have not tested on any other system.)

You can test the behavior yourself by disabling NumLock and trying those keys on either https://dvcs.w3.org/hg/d4e/raw-file/tip/key-event-test.html or https://codepen.io/denilsonsa/pen/epmoma

[denilsonsa]

Upon further inspection of uievents-code spec, there are more numpad keys, such as ,, = and Clear. (Although the note says Clear should be encoded as NumLock.) I believe those keys are also missing from the 5.6.2 section, and they should probably return DOM_KEY_LOCATION_NUMPAD. I'm not sure what is the current behavior, as I have access to neither Mac nor Brazil-ABNT keyboard nowadays.

[jrandolf-2]

Clear is not specified because it depends on the OS. On macOS it's NumLock, but everywhere else it's NumLockClear