1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/generic/FormControlAccessible.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,210 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +// NOTE: alphabetically ordered
1.10 +
1.11 +#include "FormControlAccessible.h"
1.12 +#include "Role.h"
1.13 +
1.14 +#include "mozilla/FloatingPoint.h"
1.15 +#include "nsIDOMHTMLFormElement.h"
1.16 +#include "nsIDOMXULElement.h"
1.17 +#include "nsIDOMXULControlElement.h"
1.18 +
1.19 +using namespace mozilla::a11y;
1.20 +
1.21 +////////////////////////////////////////////////////////////////////////////////
1.22 +// ProgressMeterAccessible
1.23 +////////////////////////////////////////////////////////////////////////////////
1.24 +
1.25 +template class mozilla::a11y::ProgressMeterAccessible<1>;
1.26 +template class mozilla::a11y::ProgressMeterAccessible<100>;
1.27 +
1.28 +////////////////////////////////////////////////////////////////////////////////
1.29 +// nsISupports
1.30 +
1.31 +template<int Max>
1.32 +NS_IMPL_ADDREF_INHERITED(ProgressMeterAccessible<Max>, LeafAccessible)
1.33 +
1.34 +template<int Max>
1.35 +NS_IMPL_RELEASE_INHERITED(ProgressMeterAccessible<Max>, LeafAccessible)
1.36 +
1.37 +template<int Max>
1.38 +NS_IMPL_QUERY_INTERFACE_INHERITED(ProgressMeterAccessible<Max>,
1.39 + LeafAccessible,
1.40 + nsIAccessibleValue)
1.41 +
1.42 +////////////////////////////////////////////////////////////////////////////////
1.43 +// Accessible
1.44 +
1.45 +template<int Max>
1.46 +role
1.47 +ProgressMeterAccessible<Max>::NativeRole()
1.48 +{
1.49 + return roles::PROGRESSBAR;
1.50 +}
1.51 +
1.52 +template<int Max>
1.53 +uint64_t
1.54 +ProgressMeterAccessible<Max>::NativeState()
1.55 +{
1.56 + uint64_t state = LeafAccessible::NativeState();
1.57 +
1.58 + // An undetermined progressbar (i.e. without a value) has a mixed state.
1.59 + nsAutoString attrValue;
1.60 + mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue);
1.61 +
1.62 + if (attrValue.IsEmpty())
1.63 + state |= states::MIXED;
1.64 +
1.65 + return state;
1.66 +}
1.67 +
1.68 +////////////////////////////////////////////////////////////////////////////////
1.69 +// ProgressMeterAccessible<Max>: Widgets
1.70 +
1.71 +template<int Max>
1.72 +bool
1.73 +ProgressMeterAccessible<Max>::IsWidget() const
1.74 +{
1.75 + return true;
1.76 +}
1.77 +
1.78 +////////////////////////////////////////////////////////////////////////////////
1.79 +// nsIAccessibleValue
1.80 +
1.81 +template<int Max>
1.82 +void
1.83 +ProgressMeterAccessible<Max>::Value(nsString& aValue)
1.84 +{
1.85 + LeafAccessible::Value(aValue);
1.86 + if (!aValue.IsEmpty())
1.87 + return;
1.88 +
1.89 + double maxValue = MaxValue();
1.90 + if (IsNaN(maxValue) || maxValue == 0)
1.91 + return;
1.92 +
1.93 + double curValue = CurValue();
1.94 + if (IsNaN(curValue))
1.95 + return;
1.96 +
1.97 + // Treat the current value bigger than maximum as 100%.
1.98 + double percentValue = (curValue < maxValue) ?
1.99 + (curValue / maxValue) * 100 : 100;
1.100 +
1.101 + aValue.AppendFloat(percentValue);
1.102 + aValue.AppendLiteral("%");
1.103 +}
1.104 +
1.105 +template<int Max>
1.106 +double
1.107 +ProgressMeterAccessible<Max>::MaxValue() const
1.108 +{
1.109 + double value = LeafAccessible::MaxValue();
1.110 + if (!IsNaN(value))
1.111 + return value;
1.112 +
1.113 + nsAutoString strValue;
1.114 + if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::max, strValue)) {
1.115 + nsresult result = NS_OK;
1.116 + value = strValue.ToDouble(&result);
1.117 + if (NS_SUCCEEDED(result))
1.118 + return value;
1.119 + }
1.120 +
1.121 + return Max;
1.122 +}
1.123 +
1.124 +template<int Max>
1.125 +double
1.126 +ProgressMeterAccessible<Max>::MinValue() const
1.127 +{
1.128 + double value = LeafAccessible::MinValue();
1.129 + return IsNaN(value) ? 0 : value;
1.130 +}
1.131 +
1.132 +template<int Max>
1.133 +double
1.134 +ProgressMeterAccessible<Max>::Step() const
1.135 +{
1.136 + double value = LeafAccessible::Step();
1.137 + return IsNaN(value) ? 0 : value;
1.138 +}
1.139 +
1.140 +template<int Max>
1.141 +double
1.142 +ProgressMeterAccessible<Max>::CurValue() const
1.143 +{
1.144 + double value = LeafAccessible::CurValue();
1.145 + if (!IsNaN(value))
1.146 + return value;
1.147 +
1.148 + nsAutoString attrValue;
1.149 + if (!mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, attrValue))
1.150 + return UnspecifiedNaN<double>();
1.151 +
1.152 + nsresult error = NS_OK;
1.153 + value = attrValue.ToDouble(&error);
1.154 + return NS_FAILED(error) ? UnspecifiedNaN<double>() : value;
1.155 +}
1.156 +
1.157 +template<int Max>
1.158 +bool
1.159 +ProgressMeterAccessible<Max>::SetCurValue(double aValue)
1.160 +{
1.161 + return false; // progress meters are readonly.
1.162 +}
1.163 +
1.164 +////////////////////////////////////////////////////////////////////////////////
1.165 +// RadioButtonAccessible
1.166 +////////////////////////////////////////////////////////////////////////////////
1.167 +
1.168 +RadioButtonAccessible::
1.169 + RadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc) :
1.170 + LeafAccessible(aContent, aDoc)
1.171 +{
1.172 +}
1.173 +
1.174 +uint8_t
1.175 +RadioButtonAccessible::ActionCount()
1.176 +{
1.177 + return 1;
1.178 +}
1.179 +
1.180 +NS_IMETHODIMP
1.181 +RadioButtonAccessible::GetActionName(uint8_t aIndex, nsAString& aName)
1.182 +{
1.183 + if (aIndex == eAction_Click) {
1.184 + aName.AssignLiteral("select");
1.185 + return NS_OK;
1.186 + }
1.187 + return NS_ERROR_INVALID_ARG;
1.188 +}
1.189 +
1.190 +NS_IMETHODIMP
1.191 +RadioButtonAccessible::DoAction(uint8_t aIndex)
1.192 +{
1.193 + if (aIndex != eAction_Click)
1.194 + return NS_ERROR_INVALID_ARG;
1.195 +
1.196 + DoCommand();
1.197 + return NS_OK;
1.198 +}
1.199 +
1.200 +role
1.201 +RadioButtonAccessible::NativeRole()
1.202 +{
1.203 + return roles::RADIOBUTTON;
1.204 +}
1.205 +
1.206 +////////////////////////////////////////////////////////////////////////////////
1.207 +// RadioButtonAccessible: Widgets
1.208 +
1.209 +bool
1.210 +RadioButtonAccessible::IsWidget() const
1.211 +{
1.212 + return true;
1.213 +}
