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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=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 "mozilla/EventStates.h"
#include "mozilla/dom/HTMLProgressElement.h"
#include "mozilla/dom/HTMLProgressElementBinding.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Progress)
namespace mozilla {
namespace dom {
const double HTMLProgressElement::kIndeterminatePosition = -1.0;
const double HTMLProgressElement::kDefaultValue = 0.0;
const double HTMLProgressElement::kDefaultMax = 1.0;
HTMLProgressElement::HTMLProgressElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: nsGenericHTMLElement(std::move(aNodeInfo)) {
// We start out indeterminate
AddStatesSilently(NS_EVENT_STATE_INDETERMINATE);
}
HTMLProgressElement::~HTMLProgressElement() = default;
NS_IMPL_ELEMENT_CLONE(HTMLProgressElement)
EventStates HTMLProgressElement::IntrinsicState() const {
EventStates state = nsGenericHTMLElement::IntrinsicState();
if (IsIndeterminate()) {
state |= NS_EVENT_STATE_INDETERMINATE;
}
return state;
}
bool HTMLProgressElement::ParseAttribute(int32_t aNamespaceID,
nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) {
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max) {
return aResult.ParseDoubleValue(aValue);
}
}
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aMaybeScriptedPrincipal, aResult);
}
double HTMLProgressElement::Value() const {
const nsAttrValue* attrValue = mAttrs.GetAttr(nsGkAtoms::value);
if (!attrValue || attrValue->Type() != nsAttrValue::eDoubleValue ||
attrValue->GetDoubleValue() < 0.0) {
return kDefaultValue;
}
return std::min(attrValue->GetDoubleValue(), Max());
}
double HTMLProgressElement::Max() const {
const nsAttrValue* attrMax = mAttrs.GetAttr(nsGkAtoms::max);
if (!attrMax || attrMax->Type() != nsAttrValue::eDoubleValue ||
attrMax->GetDoubleValue() <= 0.0) {
return kDefaultMax;
}
return attrMax->GetDoubleValue();
}
double HTMLProgressElement::Position() const {
if (IsIndeterminate()) {
return kIndeterminatePosition;
}
return Value() / Max();
}
bool HTMLProgressElement::IsIndeterminate() const {
const nsAttrValue* attrValue = mAttrs.GetAttr(nsGkAtoms::value);
return !attrValue || attrValue->Type() != nsAttrValue::eDoubleValue;
}
JSObject* HTMLProgressElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return HTMLProgressElement_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla