gecko-dev/accessible/base/AccAttributes.cpp

64 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "AccAttributes.h"
#include "StyleInfo.h"
using namespace mozilla::a11y;
bool AccAttributes::GetAttribute(nsAtom* aAttrName, nsAString& aAttrValue) {
if (auto value = mData.Lookup(aAttrName)) {
StringFromValueAndName(aAttrName, *value, aAttrValue);
return true;
}
return false;
}
void AccAttributes::StringFromValueAndName(nsAtom* aAttrName,
const AttrValueType& aValue,
nsAString& aValueString) {
aValueString.Truncate();
aValue.match(
[&aValueString](const bool& val) {
aValueString.Assign(val ? u"true" : u"false");
},
[&aValueString](const float& val) {
aValueString.AppendFloat(val * 100);
aValueString.Append(u"%");
},
[&aValueString](const double& val) { aValueString.AppendFloat(val); },
[&aValueString](const int32_t& val) { aValueString.AppendInt(val); },
[&aValueString](const RefPtr<nsAtom>& val) {
val->ToString(aValueString);
},
[&aValueString](const CSSCoord& val) {
aValueString.AppendFloat(val);
aValueString.Append(u"px");
},
[&aValueString](const FontSize& val) {
aValueString.AppendInt(val.mValue);
aValueString.Append(u"pt");
},
[&aValueString](const Color& val) {
StyleInfo::FormatColor(val.mValue, aValueString);
},
[&aValueString](const DeleteEntry& val) {
aValueString.Append(u"-delete-entry-");
});
}
void AccAttributes::Update(AccAttributes* aOther) {
for (auto entry : *aOther) {
if (entry.mValue->is<DeleteEntry>()) {
mData.Remove(entry.mName);
continue;
}
mData.InsertOrUpdate(entry.mName, *entry.mValue);
}
}