Closed Bug 984380 Opened 10 years ago Closed 9 years ago

Keypress fires incorrectly for some AltGr+char combinations

Categories

(Core :: DOM: Events, defect)

Product:
Core
Component:
DOM: Events
Version:
27 Branch
Platform:
x86_64
Windows 8.1
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED DUPLICATE of bug 968056

People

(Reporter: isaacsalier, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0 (Beta/Release)
Build ID: 20140212131424

Steps to reproduce:

Testing in Windows 8.1, Firefox 27.0.1.

1. Open http://jsfiddle.net/salier/2zN9L/.
2. Switch to Polish keyboard.
3. Type characters into input, verify appropriate keydown/keypress/input/keyup combinations.
4. Type `AltGr+d` into the input. This combination does not produce a character with the Polish keyboard.


Actual results:

A `keypress` event fires with a `which` value of 100 (character "d"). No character is inserted into the text input, and no `input` event occurs.


Expected results:

No `keypress` event should fire for this combination. Keydown and keyup events should fire for the modifiers and the `D` key, but with no corresponding character output, no keypress should occur.
To clarify, keydown and keyup events fire as expected.
Component: Untriaged → DOM: Events
Product: Firefox → Core
It's by design at least for now. Gecko dispatches keypress events even if the key doesn't insert text.
Status: UNCONFIRMED → RESOLVED
Closed: 9 years ago
Resolution: --- → DUPLICATE
FYI: If you need to distinguish if a keypress event will cause text input, check ctrlKey and altKey. Both of them are false when it will insert text.
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