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Bug 379878. Fix crashes and accessible value interface support for XUL progress meter. r=ginn.chen

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This commit is contained in:
aaronleventhal@moonset.net 2007-05-09 06:25:52 -07:00
parent c33c383c2a
commit e322c0eedc
2 changed files with 17 additions and 7 deletions
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2
accessible/src/atk/nsMaiInterfaceValue.cpp
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@ -130,7 +130,7 @@ getMinimumIncrementCB(AtkValue *obj, GValue *minimumIncrement)
if (!accValue)
return;
memset (accValue, 0, sizeof (GValue));
memset (minimumIncrement, 0, sizeof (GValue));
double accDouble;
if (NS_FAILED(accValue->GetMinimumIncrement(&accDouble)))
return;

22
accessible/src/xul/nsXULFormControlAccessible.cpp
View File

@ -481,11 +481,15 @@ NS_IMETHODIMP nsXULProgressMeterAccessible::GetValue(nsAString& aValue)
if (!aValue.IsEmpty()) {
return NS_OK;
}
nsCOMPtr<nsIDOMElement> element(do_QueryInterface(mDOMNode));
NS_ASSERTION(element, "No element for DOM node!");
element->GetAttribute(NS_LITERAL_STRING("value"), aValue);
if (!aValue.IsEmpty() && aValue.Last() != '%')
aValue.AppendLiteral("%");
nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
if (!content) {
return NS_ERROR_FAILURE;
}
content->GetAttr(kNameSpaceID_None, nsAccessibilityAtoms::value, aValue);
if (aValue.IsEmpty()) {
aValue.AppendLiteral("0"); // Empty value for progress meter = 0%
}
aValue.AppendLiteral("%");
return NS_OK;
}
@ -509,8 +513,14 @@ NS_IMETHODIMP nsXULProgressMeterAccessible::GetMinimumIncrement(double *aMinimum
NS_IMETHODIMP nsXULProgressMeterAccessible::GetCurrentValue(double *aCurrentValue)
{
*aCurrentValue = 0;
nsAutoString currentValue;
GetValue(currentValue);
nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
if (!content) {
return NS_ERROR_FAILURE;
}
content->GetAttr(kNameSpaceID_None, nsAccessibilityAtoms::value, currentValue);
PRInt32 error;
*aCurrentValue = currentValue.ToFloat(&error) / 100;
return NS_OK;