194 lines
4.3 KiB
C++
194 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// NOTE: alphabetically ordered
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#include "FormControlAccessible.h"
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#include "Role.h"
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#include "mozilla/FloatingPoint.h"
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#include "nsIDOMHTMLFormElement.h"
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#include "nsIDOMXULElement.h"
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#include "nsIDOMXULControlElement.h"
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using namespace mozilla::a11y;
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////////////////////////////////////////////////////////////////////////////////
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// ProgressMeterAccessible
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////////////////////////////////////////////////////////////////////////////////
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template class mozilla::a11y::ProgressMeterAccessible<1>;
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template class mozilla::a11y::ProgressMeterAccessible<100>;
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////////////////////////////////////////////////////////////////////////////////
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// Accessible
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template<int Max>
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role
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ProgressMeterAccessible<Max>::NativeRole()
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{
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return roles::PROGRESSBAR;
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}
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template<int Max>
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uint64_t
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ProgressMeterAccessible<Max>::NativeState()
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{
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uint64_t state = LeafAccessible::NativeState();
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// An undetermined progressbar (i.e. without a value) has a mixed state.
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nsAutoString attrValue;
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mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue);
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if (attrValue.IsEmpty())
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state |= states::MIXED;
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return state;
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}
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////////////////////////////////////////////////////////////////////////////////
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// ProgressMeterAccessible<Max>: Widgets
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template<int Max>
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bool
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ProgressMeterAccessible<Max>::IsWidget() const
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{
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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// ProgressMeterAccessible<Max>: Value
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template<int Max>
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void
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ProgressMeterAccessible<Max>::Value(nsString& aValue)
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{
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LeafAccessible::Value(aValue);
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if (!aValue.IsEmpty())
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return;
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double maxValue = MaxValue();
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if (IsNaN(maxValue) || maxValue == 0)
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return;
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double curValue = CurValue();
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if (IsNaN(curValue))
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return;
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// Treat the current value bigger than maximum as 100%.
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double percentValue = (curValue < maxValue) ?
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(curValue / maxValue) * 100 : 100;
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aValue.AppendFloat(percentValue);
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aValue.Append('%');
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}
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template<int Max>
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double
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ProgressMeterAccessible<Max>::MaxValue() const
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{
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double value = LeafAccessible::MaxValue();
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if (!IsNaN(value))
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return value;
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nsAutoString strValue;
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if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::max, strValue)) {
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nsresult result = NS_OK;
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value = strValue.ToDouble(&result);
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if (NS_SUCCEEDED(result))
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return value;
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}
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return Max;
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}
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template<int Max>
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double
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ProgressMeterAccessible<Max>::MinValue() const
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{
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double value = LeafAccessible::MinValue();
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return IsNaN(value) ? 0 : value;
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}
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template<int Max>
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double
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ProgressMeterAccessible<Max>::Step() const
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{
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double value = LeafAccessible::Step();
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return IsNaN(value) ? 0 : value;
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}
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template<int Max>
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double
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ProgressMeterAccessible<Max>::CurValue() const
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{
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double value = LeafAccessible::CurValue();
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if (!IsNaN(value))
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return value;
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nsAutoString attrValue;
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if (!mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue))
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return UnspecifiedNaN<double>();
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nsresult error = NS_OK;
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value = attrValue.ToDouble(&error);
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return NS_FAILED(error) ? UnspecifiedNaN<double>() : value;
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}
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template<int Max>
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bool
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ProgressMeterAccessible<Max>::SetCurValue(double aValue)
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{
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return false; // progress meters are readonly.
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}
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////////////////////////////////////////////////////////////////////////////////
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// RadioButtonAccessible
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////////////////////////////////////////////////////////////////////////////////
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RadioButtonAccessible::
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RadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc) :
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LeafAccessible(aContent, aDoc)
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{
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}
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uint8_t
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RadioButtonAccessible::ActionCount()
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{
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return 1;
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}
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void
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RadioButtonAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
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{
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if (aIndex == eAction_Click)
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aName.AssignLiteral("select");
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}
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bool
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RadioButtonAccessible::DoAction(uint8_t aIndex)
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{
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if (aIndex != eAction_Click)
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return false;
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DoCommand();
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return true;
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}
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role
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RadioButtonAccessible::NativeRole()
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{
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return roles::RADIOBUTTON;
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}
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////////////////////////////////////////////////////////////////////////////////
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// RadioButtonAccessible: Widgets
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bool
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RadioButtonAccessible::IsWidget() const
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{
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return true;
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}
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