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Bug 935698 - isolate nsIAccessibleValue implementation into separate class, r=tbsaunde

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This commit is contained in:
Alexander Surkov 2013-11-19 16:01:15 -05:00
parent d0287c9257
commit a2c0e69c2e
16 changed files with 338 additions and 301 deletions
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82
accessible/src/atk/nsMaiInterfaceValue.cpp
View File

@ -5,11 +5,14 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "InterfaceInitFuncs.h"
#include "mozilla/Likely.h"
#include "AccessibleWrap.h"
#include "nsMai.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/Likely.h"
using namespace mozilla;
using namespace mozilla::a11y;
extern "C" {
@ -21,18 +24,13 @@ getCurrentValueCB(AtkValue *obj, GValue *value)
if (!accWrap)
return;
nsCOMPtr<nsIAccessibleValue> accValue;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleValue),
getter_AddRefs(accValue));
if (!accValue)
return;
memset (value, 0, sizeof (GValue));
double accValue = accWrap->CurValue();
if (IsNaN(accValue))
return;
memset (value, 0, sizeof (GValue));
double accDouble;
if (NS_FAILED(accValue->GetCurrentValue(&accDouble)))
return;
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, accDouble);
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, accValue);
}
static void
@ -42,18 +40,13 @@ getMaximumValueCB(AtkValue *obj, GValue *value)
if (!accWrap)
return;
nsCOMPtr<nsIAccessibleValue> accValue;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleValue),
getter_AddRefs(accValue));
if (!accValue)
return;
memset(value, 0, sizeof (GValue));
double accValue = accWrap->MaxValue();
if (IsNaN(accValue))
return;
memset (value, 0, sizeof (GValue));
double accDouble;
if (NS_FAILED(accValue->GetMaximumValue(&accDouble)))
return;
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, accDouble);
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void
@ -63,18 +56,13 @@ getMinimumValueCB(AtkValue *obj, GValue *value)
if (!accWrap)
return;
nsCOMPtr<nsIAccessibleValue> accValue;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleValue),
getter_AddRefs(accValue));
if (!accValue)
return;
memset(value, 0, sizeof (GValue));
double accValue = accWrap->MinValue();
if (IsNaN(accValue))
return;
memset (value, 0, sizeof (GValue));
double accDouble;
if (NS_FAILED(accValue->GetMinimumValue(&accDouble)))
return;
g_value_init (value, G_TYPE_DOUBLE);
g_value_set_double (value, accDouble);
g_value_init(value, G_TYPE_DOUBLE);
g_value_set_double(value, accValue);
}
static void
@ -84,18 +72,13 @@ getMinimumIncrementCB(AtkValue *obj, GValue *minimumIncrement)
if (!accWrap)
return;
nsCOMPtr<nsIAccessibleValue> accValue;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleValue),
getter_AddRefs(accValue));
if (!accValue)
return;
memset(minimumIncrement, 0, sizeof (GValue));
double accValue = accWrap->Step();
if (IsNaN(accValue))
accValue = 0; // zero if the minimum increment is undefined
memset (minimumIncrement, 0, sizeof (GValue));
double accDouble;
if (NS_FAILED(accValue->GetMinimumIncrement(&accDouble)))
return;
g_value_init (minimumIncrement, G_TYPE_DOUBLE);
g_value_set_double (minimumIncrement, accDouble);
g_value_init(minimumIncrement, G_TYPE_DOUBLE);
g_value_set_double(minimumIncrement, accValue);
}
static gboolean
@ -105,13 +88,8 @@ setCurrentValueCB(AtkValue *obj, const GValue *value)
if (!accWrap)
return FALSE;
nsCOMPtr<nsIAccessibleValue> accValue;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleValue),
getter_AddRefs(accValue));
NS_ENSURE_TRUE(accValue, FALSE);
double accDouble =g_value_get_double (value);
return !NS_FAILED(accValue->SetCurrentValue(accDouble));
double accValue =g_value_get_double(value);
return accWrap->SetCurValue(accValue);
}
}

89
accessible/src/generic/Accessible.cpp
View File

@ -78,6 +78,7 @@
#endif
#include "mozilla/Assertions.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/unused.h"
#include "mozilla/Preferences.h"
@ -1672,61 +1673,53 @@ Accessible::Value(nsString& aValue)
}
}
// nsIAccessibleValue
NS_IMETHODIMP
Accessible::GetMaximumValue(double *aMaximumValue)
double
Accessible::MaxValue() const
{
return GetAttrValue(nsGkAtoms::aria_valuemax, aMaximumValue);
return AttrNumericValue(nsGkAtoms::aria_valuemax);
}
NS_IMETHODIMP
Accessible::GetMinimumValue(double *aMinimumValue)
double
Accessible::MinValue() const
{
return GetAttrValue(nsGkAtoms::aria_valuemin, aMinimumValue);
return AttrNumericValue(nsGkAtoms::aria_valuemin);
}
NS_IMETHODIMP
Accessible::GetMinimumIncrement(double *aMinIncrement)
double
Accessible::Step() const
{
NS_ENSURE_ARG_POINTER(aMinIncrement);
*aMinIncrement = 0;
// No mimimum increment in dynamic content spec right now
return NS_OK_NO_ARIA_VALUE;
return UnspecifiedNaN(); // no mimimum increment (step) in ARIA.
}
NS_IMETHODIMP
Accessible::GetCurrentValue(double *aValue)
double
Accessible::CurValue() const
{
return GetAttrValue(nsGkAtoms::aria_valuenow, aValue);
return AttrNumericValue(nsGkAtoms::aria_valuenow);
}
NS_IMETHODIMP
Accessible::SetCurrentValue(double aValue)
bool
Accessible::SetCurValue(double aValue)
{
if (IsDefunct())
return NS_ERROR_FAILURE;
if (!mRoleMapEntry || mRoleMapEntry->valueRule == eNoValue)
return NS_OK_NO_ARIA_VALUE;
return false;
const uint32_t kValueCannotChange = states::READONLY | states::UNAVAILABLE;
if (State() & kValueCannotChange)
return NS_ERROR_FAILURE;
return false;
double minValue = 0;
if (NS_SUCCEEDED(GetMinimumValue(&minValue)) && aValue < minValue)
return NS_ERROR_INVALID_ARG;
double checkValue = MinValue();
if (!IsNaN(checkValue) && aValue < checkValue)
return false;
double maxValue = 0;
if (NS_SUCCEEDED(GetMaximumValue(&maxValue)) && aValue > maxValue)
return NS_ERROR_INVALID_ARG;
checkValue = MaxValue();
if (!IsNaN(checkValue) && aValue > checkValue)
return false;
nsAutoString newValue;
newValue.AppendFloat(aValue);
return mContent->SetAttr(kNameSpaceID_None,
nsGkAtoms::aria_valuenow, newValue, true);
nsAutoString strValue;
strValue.AppendFloat(aValue);
return NS_SUCCEEDED(
mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::aria_valuenow, strValue, true));
}
/* void setName (in DOMString name); */
@ -3116,31 +3109,19 @@ Accessible::GetFirstAvailableAccessible(nsINode *aStartNode) const
return nullptr;
}
nsresult
Accessible::GetAttrValue(nsIAtom *aProperty, double *aValue)
double
Accessible::AttrNumericValue(nsIAtom* aAttr) const
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
if (IsDefunct())
return NS_ERROR_FAILURE; // Node already shut down
if (!mRoleMapEntry || mRoleMapEntry->valueRule == eNoValue)
return NS_OK_NO_ARIA_VALUE;
if (!mRoleMapEntry || mRoleMapEntry->valueRule == eNoValue)
return UnspecifiedNaN();
nsAutoString attrValue;
mContent->GetAttr(kNameSpaceID_None, aProperty, attrValue);
// Return zero value if there is no attribute or its value is empty.
if (attrValue.IsEmpty())
return NS_OK;
if (!mContent->GetAttr(kNameSpaceID_None, aAttr, attrValue))
return UnspecifiedNaN();
nsresult error = NS_OK;
double value = attrValue.ToDouble(&error);
if (NS_SUCCEEDED(error))
*aValue = value;
return NS_OK;
return NS_FAILED(error) ? UnspecifiedNaN() : value;
}
uint32_t

24
accessible/src/generic/Accessible.h
View File

@ -13,9 +13,9 @@
#include "nsIAccessible.h"
#include "nsIAccessibleHyperLink.h"
#include "nsIAccessibleValue.h"
#include "nsIAccessibleStates.h"
#include "xpcAccessibleSelectable.h"
#include "xpcAccessibleValue.h"
#include "nsIContent.h"
#include "nsString.h"
@ -105,7 +105,7 @@ typedef nsRefPtrHashtable<nsPtrHashKey<const void>, Accessible>
class Accessible : public nsIAccessible,
public nsIAccessibleHyperLink,
public xpcAccessibleSelectable,
public nsIAccessibleValue
public xpcAccessibleValue
{
public:
Accessible(nsIContent* aContent, DocAccessible* aDoc);
@ -116,7 +116,6 @@ public:
NS_DECL_NSIACCESSIBLE
NS_DECL_NSIACCESSIBLEHYPERLINK
NS_DECL_NSIACCESSIBLEVALUE
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ACCESSIBLE_IMPL_IID)
//////////////////////////////////////////////////////////////////////////////
@ -688,6 +687,15 @@ public:
*/
virtual bool UnselectAll();
//////////////////////////////////////////////////////////////////////////////
// Value (numeric value interface)
virtual double MaxValue() const;
virtual double MinValue() const;
virtual double CurValue() const;
virtual double Step() const;
virtual bool SetCurValue(double aValue);
//////////////////////////////////////////////////////////////////////////////
// Widgets
@ -911,14 +919,12 @@ protected:
nsIContent* GetAtomicRegion() const;
/**
* Get numeric value of the given ARIA attribute.
* Return numeric value of the given ARIA attribute, NaN if not applicable.
*
* @param aAriaProperty - the ARIA property we're using
* @param aValue - value of the attribute
*
* @return - NS_OK_NO_ARIA_VALUE if there is no setted ARIA attribute
* @param aARIAProperty [in] the ARIA property we're using
* @return a numeric value
*/
nsresult GetAttrValue(nsIAtom *aAriaProperty, double *aValue);
double AttrNumericValue(nsIAtom* aARIAAttr) const;
/**
* Return the action rule based on ARIA enum constants EActionRule

88
accessible/src/generic/FormControlAccessible.cpp
View File

@ -8,6 +8,7 @@
#include "FormControlAccessible.h"
#include "Role.h"
#include "mozilla/FloatingPoint.h"
#include "nsIDOMHTMLFormElement.h"
#include "nsIDOMXULElement.h"
#include "nsIDOMXULControlElement.h"
@ -82,14 +83,12 @@ ProgressMeterAccessible<Max>::Value(nsString& aValue)
if (!aValue.IsEmpty())
return;
double maxValue = 0;
nsresult rv = GetMaximumValue(&maxValue);
if (NS_FAILED(rv) || maxValue == 0)
double maxValue = MaxValue();
if (IsNaN(maxValue) || maxValue == 0)
return;
double curValue = 0;
GetCurrentValue(&curValue);
if (NS_FAILED(rv))
double curValue = CurValue();
if (IsNaN(curValue))
return;
// Treat the current value bigger than maximum as 100%.
@ -101,77 +100,62 @@ ProgressMeterAccessible<Max>::Value(nsString& aValue)
}
template<int Max>
NS_IMETHODIMP
ProgressMeterAccessible<Max>::GetMaximumValue(double* aMaximumValue)
double
ProgressMeterAccessible<Max>::MaxValue() const
{
nsresult rv = LeafAccessible::GetMaximumValue(aMaximumValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::MaxValue();
if (!IsNaN(value))
return value;
nsAutoString value;
if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::max, value)) {
nsAutoString strValue;
if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::max, strValue)) {
nsresult result = NS_OK;
*aMaximumValue = value.ToDouble(&result);
return result;
value = strValue.ToDouble(&result);
if (NS_SUCCEEDED(result))
return value;
}
*aMaximumValue = Max;
return NS_OK;
return Max;
}
template<int Max>
NS_IMETHODIMP
ProgressMeterAccessible<Max>::GetMinimumValue(double* aMinimumValue)
double
ProgressMeterAccessible<Max>::MinValue() const
{
nsresult rv = LeafAccessible::GetMinimumValue(aMinimumValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
*aMinimumValue = 0;
return NS_OK;
double value = LeafAccessible::MinValue();
return IsNaN(value) ? 0 : value;
}
template<int Max>
NS_IMETHODIMP
ProgressMeterAccessible<Max>::GetMinimumIncrement(double* aMinimumIncrement)
double
ProgressMeterAccessible<Max>::Step() const
{
nsresult rv = LeafAccessible::GetMinimumIncrement(aMinimumIncrement);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
*aMinimumIncrement = 0;
return NS_OK;
double value = LeafAccessible::Step();
return IsNaN(value) ? 0 : value;
}
template<int Max>
NS_IMETHODIMP
ProgressMeterAccessible<Max>::GetCurrentValue(double* aCurrentValue)
double
ProgressMeterAccessible<Max>::CurValue() const
{
nsresult rv = LeafAccessible::GetCurrentValue(aCurrentValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::CurValue();
if (!IsNaN(value))
return value;
nsAutoString attrValue;
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue);
// Return zero value if there is no attribute or its value is empty.
if (attrValue.IsEmpty())
return NS_OK;
if (!mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue))
return UnspecifiedNaN();
nsresult error = NS_OK;
double value = attrValue.ToDouble(&error);
if (NS_FAILED(error))
return NS_OK; // Zero value because of wrong markup.
*aCurrentValue = value;
return NS_OK;
value = attrValue.ToDouble(&error);
return NS_FAILED(error) ? UnspecifiedNaN() : value;
}
template<int Max>
NS_IMETHODIMP
ProgressMeterAccessible<Max>::SetCurrentValue(double aValue)
bool
ProgressMeterAccessible<Max>::SetCurValue(double aValue)
{
return NS_ERROR_FAILURE; // Progress meters are readonly.
return false; // progress meters are readonly.
}
////////////////////////////////////////////////////////////////////////////////

8
accessible/src/generic/FormControlAccessible.h
View File

@ -28,13 +28,19 @@ public:
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIACCESSIBLEVALUE
// Accessible
virtual void Value(nsString& aValue);
virtual mozilla::a11y::role NativeRole();
virtual uint64_t NativeState();
// Value
virtual double MaxValue() const MOZ_OVERRIDE;
virtual double MinValue() const MOZ_OVERRIDE;
virtual double CurValue() const MOZ_OVERRIDE;
virtual double Step() const MOZ_OVERRIDE;
virtual bool SetCurValue(double aValue) MOZ_OVERRIDE;
// Widgets
virtual bool IsWidget() const;
};

63
accessible/src/html/HTMLFormControlAccessible.cpp
View File

@ -27,6 +27,7 @@
#include "nsIServiceManager.h"
#include "nsITextControlFrame.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/Preferences.h"
using namespace mozilla;
@ -545,9 +546,6 @@ HTMLFileInputAccessible::HandleAccEvent(AccEvent* aEvent)
// HTMLRangeAccessible
////////////////////////////////////////////////////////////////////////////////
NS_IMPL_ISUPPORTS_INHERITED1(HTMLRangeAccessible, LeafAccessible,
nsIAccessibleValue)
role
HTMLRangeAccessible::NativeRole()
{
@ -570,58 +568,53 @@ HTMLRangeAccessible::Value(nsString& aValue)
HTMLInputElement::FromContent(mContent)->GetValue(aValue);
}
NS_IMETHODIMP
HTMLRangeAccessible::GetMaximumValue(double* aMaximumValue)
double
HTMLRangeAccessible::MaxValue() const
{
nsresult rv = LeafAccessible::GetMaximumValue(aMaximumValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::MaxValue();
if (!IsNaN(value))
return value;
*aMaximumValue = HTMLInputElement::FromContent(mContent)->GetMaximum().toDouble();
return NS_OK;
return HTMLInputElement::FromContent(mContent)->GetMaximum().toDouble();
}
NS_IMETHODIMP
HTMLRangeAccessible::GetMinimumValue(double* aMinimumValue)
double
HTMLRangeAccessible::MinValue() const
{
nsresult rv = LeafAccessible::GetMinimumValue(aMinimumValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::MinValue();
if (!IsNaN(value))
return value;
*aMinimumValue = HTMLInputElement::FromContent(mContent)->GetMinimum().toDouble();
return NS_OK;
return HTMLInputElement::FromContent(mContent)->GetMinimum().toDouble();
}
NS_IMETHODIMP
HTMLRangeAccessible::GetMinimumIncrement(double* aMinimumIncrement)
double
HTMLRangeAccessible::Step() const
{
nsresult rv = LeafAccessible::GetMinimumIncrement(aMinimumIncrement);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::Step();
if (!IsNaN(value))
return value;
*aMinimumIncrement = HTMLInputElement::FromContent(mContent)->GetStep().toDouble();
return NS_OK;
return HTMLInputElement::FromContent(mContent)->GetStep().toDouble();
}
NS_IMETHODIMP
HTMLRangeAccessible::GetCurrentValue(double* aCurrentValue)
double
HTMLRangeAccessible::CurValue() const
{
nsresult rv = LeafAccessible::GetCurrentValue(aCurrentValue);
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
double value = LeafAccessible::CurValue();
if (!IsNaN(value))
return value;
*aCurrentValue = HTMLInputElement::FromContent(mContent)->GetValueAsDecimal().toDouble();
return NS_OK;
return HTMLInputElement::FromContent(mContent)->GetValueAsDecimal().toDouble();
}
NS_IMETHODIMP
HTMLRangeAccessible::SetCurrentValue(double aValue)
bool
HTMLRangeAccessible::SetCurValue(double aValue)
{
ErrorResult er;
HTMLInputElement::FromContent(mContent)->SetValueAsNumber(aValue, er);
return er.ErrorCode();
return !er.Failed();
}

10
accessible/src/html/HTMLFormControlAccessible.h
View File

@ -172,13 +172,17 @@ public:
mStateFlags |= eHasNumericValue;
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIACCESSIBLEVALUE
// Accessible
virtual void Value(nsString& aValue);
virtual mozilla::a11y::role NativeRole();
// Value
virtual double MaxValue() const MOZ_OVERRIDE;
virtual double MinValue() const MOZ_OVERRIDE;
virtual double CurValue() const MOZ_OVERRIDE;
virtual double Step() const MOZ_OVERRIDE;
virtual bool SetCurValue(double aValue) MOZ_OVERRIDE;
// Widgets
virtual bool IsWidget() const;
};

26
accessible/src/windows/ia2/ia2AccessibleValue.cpp
View File

@ -13,6 +13,8 @@
#include "Accessible-inl.h"
#include "IUnknownImpl.h"
#include "mozilla/FloatingPoint.h"
using namespace mozilla::a11y;
// IUnknown
@ -55,10 +57,9 @@ ia2AccessibleValue::get_currentValue(VARIANT* aCurrentValue)
if (valueAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
double currentValue = 0;
nsresult rv = valueAcc->GetCurrentValue(&currentValue);
if (NS_FAILED(rv))
return GetHRESULT(rv);
double currentValue = valueAcc->CurValue();
if (IsNaN(currentValue))
return S_FALSE;
aCurrentValue->vt = VT_R8;
aCurrentValue->dblVal = currentValue;
@ -79,8 +80,7 @@ ia2AccessibleValue::setCurrentValue(VARIANT aValue)
if (aValue.vt != VT_R8)
return E_INVALIDARG;
nsresult rv = valueAcc->SetCurrentValue(aValue.dblVal);
return GetHRESULT(rv);
return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL;
A11Y_TRYBLOCK_END
}
@ -99,10 +99,9 @@ ia2AccessibleValue::get_maximumValue(VARIANT* aMaximumValue)
if (valueAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
double maximumValue = 0;
nsresult rv = valueAcc->GetMaximumValue(&maximumValue);
if (NS_FAILED(rv))
return GetHRESULT(rv);
double maximumValue = valueAcc->MaxValue();
if (IsNaN(maximumValue))
return S_FALSE;
aMaximumValue->vt = VT_R8;
aMaximumValue->dblVal = maximumValue;
@ -125,10 +124,9 @@ ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue)
if (valueAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
double minimumValue = 0;
nsresult rv = valueAcc->GetMinimumValue(&minimumValue);
if (NS_FAILED(rv))
return GetHRESULT(rv);
double minimumValue = valueAcc->MinValue();
if (IsNaN(minimumValue))
return S_FALSE;
aMinimumValue->vt = VT_R8;
aMinimumValue->dblVal = minimumValue;

2
accessible/src/xpcom/moz.build
View File

@ -7,6 +7,7 @@
EXPORTS += [
'xpcAccessibleHyperText.h',
'xpcAccessibleSelectable.h',
'xpcAccessibleValue.h',
]
UNIFIED_SOURCES += [
@ -15,6 +16,7 @@ UNIFIED_SOURCES += [
'xpcAccessibleSelectable.cpp',
'xpcAccessibleTable.cpp',
'xpcAccessibleTableCell.cpp',
'xpcAccessibleValue.cpp',
]
GENERATED_SOURCES += [

90
accessible/src/xpcom/xpcAccessibleValue.cpp Normal file
View File

@ -0,0 +1,90 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "xpcAccessibleValue.h"
#include "Accessible.h"
using namespace mozilla;
using namespace mozilla::a11y;
NS_IMETHODIMP
xpcAccessibleValue::GetMaximumValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
Accessible* acc = static_cast<Accessible*>(this);
if (acc->IsDefunct())
return NS_ERROR_FAILURE;
double value = acc->MaxValue();
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetMinimumValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
Accessible* acc = static_cast<Accessible*>(this);
if (acc->IsDefunct())
return NS_ERROR_FAILURE;
double value = acc->MinValue();
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetCurrentValue(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
Accessible* acc = static_cast<Accessible*>(this);
if (acc->IsDefunct())
return NS_ERROR_FAILURE;
double value = acc->CurValue();
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::SetCurrentValue(double aValue)
{
Accessible* acc = static_cast<Accessible*>(this);
if (acc->IsDefunct())
return NS_ERROR_FAILURE;
acc->SetCurValue(aValue);
return NS_OK;
}
NS_IMETHODIMP
xpcAccessibleValue::GetMinimumIncrement(double* aValue)
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
Accessible* acc = static_cast<Accessible*>(this);
if (acc->IsDefunct())
return NS_ERROR_FAILURE;
double value = acc->Step();
if (!IsNaN(value))
*aValue = value;
return NS_OK;
}

35
accessible/src/xpcom/xpcAccessibleValue.h Normal file
View File

@ -0,0 +1,35 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_a11y_xpcAccessibleValue_h_
#define mozilla_a11y_xpcAccessibleValue_h_
#include "nsIAccessibleValue.h"
namespace mozilla {
namespace a11y {
class xpcAccessibleValue : public nsIAccessibleValue
{
public:
NS_IMETHOD GetMaximumValue(double* aValue) MOZ_FINAL MOZ_OVERRIDE;
NS_IMETHOD GetMinimumValue(double* aValue) MOZ_FINAL MOZ_OVERRIDE;
NS_IMETHOD GetCurrentValue(double* aValue) MOZ_FINAL MOZ_OVERRIDE;
NS_IMETHOD SetCurrentValue(double aValue) MOZ_FINAL MOZ_OVERRIDE;
NS_IMETHOD GetMinimumIncrement(double* aMinIncrement) MOZ_FINAL MOZ_OVERRIDE;
private:
xpcAccessibleValue() { }
friend class Accessible;
xpcAccessibleValue(const xpcAccessibleValue&) MOZ_DELETE;
xpcAccessibleValue& operator =(const xpcAccessibleValue&) MOZ_DELETE;
};
} // namespace a11y
} // namespace mozilla
#endif

97
accessible/src/xul/XULSliderAccessible.cpp
View File

@ -11,6 +11,7 @@
#include "nsIFrame.h"
#include "mozilla/dom/Element.h"
#include "mozilla/FloatingPoint.h"
using namespace mozilla::a11y;
@ -25,12 +26,6 @@ XULSliderAccessible::
mStateFlags |= eHasNumericValue;
}
// nsISupports
NS_IMPL_ISUPPORTS_INHERITED1(XULSliderAccessible,
AccessibleWrap,
nsIAccessibleValue)
// Accessible
role
@ -99,64 +94,39 @@ XULSliderAccessible::DoAction(uint8_t aIndex)
return NS_OK;
}
// nsIAccessibleValue
NS_IMETHODIMP
XULSliderAccessible::GetMaximumValue(double* aValue)
double
XULSliderAccessible::MaxValue() const
{
nsresult rv = AccessibleWrap::GetMaximumValue(aValue);
// ARIA redefined maximum value.
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
return GetSliderAttr(nsGkAtoms::maxpos, aValue);
double value = AccessibleWrap::MaxValue();
return IsNaN(value) ? GetSliderAttr(nsGkAtoms::maxpos) : value;
}
NS_IMETHODIMP
XULSliderAccessible::GetMinimumValue(double* aValue)
double
XULSliderAccessible::MinValue() const
{
nsresult rv = AccessibleWrap::GetMinimumValue(aValue);
// ARIA redefined minmum value.
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
return GetSliderAttr(nsGkAtoms::minpos, aValue);
double value = AccessibleWrap::MinValue();
return IsNaN(value) ? GetSliderAttr(nsGkAtoms::minpos) : value;
}
NS_IMETHODIMP
XULSliderAccessible::GetMinimumIncrement(double* aValue)
double
XULSliderAccessible::Step() const
{
nsresult rv = AccessibleWrap::GetMinimumIncrement(aValue);
// ARIA redefined minimum increment value.
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
return GetSliderAttr(nsGkAtoms::increment, aValue);
double value = AccessibleWrap::Step();
return IsNaN(value) ? GetSliderAttr(nsGkAtoms::increment) : value;
}
NS_IMETHODIMP
XULSliderAccessible::GetCurrentValue(double* aValue)
double
XULSliderAccessible::CurValue() const
{
nsresult rv = AccessibleWrap::GetCurrentValue(aValue);
// ARIA redefined current value.
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
return GetSliderAttr(nsGkAtoms::curpos, aValue);
double value = AccessibleWrap::CurValue();
return IsNaN(value) ? GetSliderAttr(nsGkAtoms::curpos) : value;
}
NS_IMETHODIMP
XULSliderAccessible::SetCurrentValue(double aValue)
bool
XULSliderAccessible::SetCurValue(double aValue)
{
nsresult rv = AccessibleWrap::SetCurrentValue(aValue);
// ARIA redefined current value.
if (rv != NS_OK_NO_ARIA_VALUE)
return rv;
if (AccessibleWrap::SetCurValue(aValue))
return true;
return SetSliderAttr(nsGkAtoms::curpos, aValue);
}
@ -184,7 +154,7 @@ XULSliderAccessible::GetSliderElement() const
}
nsresult
XULSliderAccessible::GetSliderAttr(nsIAtom* aName, nsAString& aValue)
XULSliderAccessible::GetSliderAttr(nsIAtom* aName, nsAString& aValue) const
{
aValue.Truncate();
@ -211,35 +181,26 @@ XULSliderAccessible::SetSliderAttr(nsIAtom* aName, const nsAString& aValue)
return NS_OK;
}
nsresult
XULSliderAccessible::GetSliderAttr(nsIAtom* aName, double* aValue)
double
XULSliderAccessible::GetSliderAttr(nsIAtom* aName) const
{
NS_ENSURE_ARG_POINTER(aValue);
*aValue = 0;
nsAutoString attrValue;
nsresult rv = GetSliderAttr(aName, attrValue);
NS_ENSURE_SUCCESS(rv, rv);
// Return zero value if there is no attribute or its value is empty.
if (attrValue.IsEmpty())
return NS_OK;
if (NS_FAILED(rv))
return UnspecifiedNaN();
nsresult error = NS_OK;
double value = attrValue.ToDouble(&error);
if (NS_SUCCEEDED(error))
*aValue = value;
return NS_OK;
return NS_FAILED(error) ? UnspecifiedNaN() : value;
}
nsresult
bool
XULSliderAccessible::SetSliderAttr(nsIAtom* aName, double aValue)
{
nsAutoString value;
value.AppendFloat(aValue);
return SetSliderAttr(aName, value);
return NS_SUCCEEDED(SetSliderAttr(aName, value));
}

19
accessible/src/xul/XULSliderAccessible.h
View File

@ -21,16 +21,10 @@ class XULSliderAccessible : public AccessibleWrap
public:
XULSliderAccessible(nsIContent* aContent, DocAccessible* aDoc);
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIAccessible
NS_IMETHOD GetActionName(uint8_t aIndex, nsAString& aName);
NS_IMETHOD DoAction(uint8_t aIndex);
// nsIAccessibleValue
NS_DECL_NSIACCESSIBLEVALUE
// Accessible
virtual void Value(nsString& aValue);
virtual a11y::role NativeRole();
@ -38,6 +32,13 @@ public:
virtual bool NativelyUnavailable() const;
virtual bool CanHaveAnonChildren();
// Value
virtual double MaxValue() const MOZ_OVERRIDE;
virtual double MinValue() const MOZ_OVERRIDE;
virtual double CurValue() const MOZ_OVERRIDE;
virtual double Step() const MOZ_OVERRIDE;
virtual bool SetCurValue(double aValue) MOZ_OVERRIDE;
// ActionAccessible
virtual uint8_t ActionCount();
@ -47,11 +48,11 @@ protected:
*/
nsIContent* GetSliderElement() const;
nsresult GetSliderAttr(nsIAtom *aName, nsAString& aValue);
nsresult GetSliderAttr(nsIAtom *aName, nsAString& aValue) const;
nsresult SetSliderAttr(nsIAtom *aName, const nsAString& aValue);
nsresult GetSliderAttr(nsIAtom *aName, double *aValue);
nsresult SetSliderAttr(nsIAtom *aName, double aValue);
double GetSliderAttr(nsIAtom *aName) const;
bool SetSliderAttr(nsIAtom *aName, double aValue);
private:
mutable nsCOMPtr<nsIContent> mSliderNode;

2
accessible/tests/mochitest/value/test_progress.html
View File

@ -21,7 +21,7 @@
function doTest()
{
// HTML5 progress element tests
testValue("pr_indeterminate", "0%", 0, 0, 1, 0);
testValue("pr_indeterminate", "", 0, 0, 1, 0);
testValue("pr_zero", "0%", 0, 0, 1, 0);
testValue("pr_zeropointfive", "50%", 0.5, 0, 1, 0);
testValue("pr_one", "100%", 1, 0, 1, 0);

2
accessible/tests/mochitest/value/test_progress.xul
View File

@ -21,7 +21,7 @@
// progressmeter
testValue("pm1", "50%", 50, 0, 100, 0);
testValue("pm2", "50%", 500, 0, 1000, 0);
testValue("pm3", "0%", 0, 0, 100, 0);
testValue("pm3", "", 0, 0, 100, 0);
// scale
testValue("sc1", "500", 500, 0, 1000, 10);

2
xpcom/base/ErrorList.h
View File

@ -863,8 +863,6 @@
/* raised when current pivot's position is needed but it's not in the tree */
ERROR(NS_ERROR_NOT_IN_TREE, FAILURE(38)),
/* see Accessible::GetAttrValue */
ERROR(NS_OK_NO_ARIA_VALUE, SUCCESS(33)),
/* see nsTextEquivUtils */
ERROR(NS_OK_NO_NAME_CLAUSE_HANDLED, SUCCESS(34))
#undef MODULE