Commit 2885a2cf authored by Nika Layzell's avatar Nika Layzell Committed by Richard Pospesel
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Bug 1793676 - Dynamically generate DOM code names for some continuous runs of... 

Bug 1793676 - Dynamically generate DOM code names for some continuous runs of codes, r=mccr8, a=dmeehan

Differential Revision: https://phabricator.services.mozilla.com/D159400
parent a79c58b0

widget/WidgetEventImpl.cpp

+31 −0
Original line number Diff line number Diff line
@@ -1193,6 +1193,37 @@ void WidgetKeyboardEvent::GetDOMCodeName(CodeNameIndex aCodeNameIndex, 
  MOZ_RELEASE_ASSERT(

      static_cast<size_t>(aCodeNameIndex) < ArrayLength(kCodeNames),

      "Illegal physical code enumeration value");



  // Generate some continuous runs of codes, rather than looking them up.

  if (aCodeNameIndex >= CODE_NAME_INDEX_KeyA &&

      aCodeNameIndex <= CODE_NAME_INDEX_KeyZ) {

    uint32_t index = aCodeNameIndex - CODE_NAME_INDEX_KeyA;

    aCodeName.AssignLiteral(u"Key");

    aCodeName.Append(u'A' + index);

    return;

  }

  if (aCodeNameIndex >= CODE_NAME_INDEX_Digit0 &&

      aCodeNameIndex <= CODE_NAME_INDEX_Digit9) {

    uint32_t index = aCodeNameIndex - CODE_NAME_INDEX_Digit0;

    aCodeName.AssignLiteral(u"Digit");

    aCodeName.AppendInt(index);

    return;

  }

  if (aCodeNameIndex >= CODE_NAME_INDEX_Numpad0 &&

      aCodeNameIndex <= CODE_NAME_INDEX_Numpad9) {

    uint32_t index = aCodeNameIndex - CODE_NAME_INDEX_Numpad0;

    aCodeName.AssignLiteral(u"Numpad");

    aCodeName.AppendInt(index);

    return;

  }

  if (aCodeNameIndex >= CODE_NAME_INDEX_F1 &&

      aCodeNameIndex <= CODE_NAME_INDEX_F24) {

    uint32_t index = aCodeNameIndex - CODE_NAME_INDEX_F1;

    aCodeName.Assign(u'F');

    aCodeName.AppendInt(index + 1);

    return;

  }



  aCodeName = kCodeNames[aCodeNameIndex];

}