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/* -*- Mode: C++; tab-width: 8; 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 "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(aNodeInfo)
{
// We start out indeterminate
AddStatesSilently(NS_EVENT_STATE_INDETERMINATE);
}
HTMLProgressElement::~HTMLProgressElement()
{
}
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, nsIAtom* aAttribute,
const nsAString& aValue, nsAttrValue& aResult)
{
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max) {
return aResult.ParseDoubleValue(aValue);
}
}
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute,
aValue, aResult);
}
double
HTMLProgressElement::Value() const
{
const nsAttrValue* attrValue = mAttrsAndChildren.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 = mAttrsAndChildren.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 = mAttrsAndChildren.GetAttr(nsGkAtoms::value);
return !attrValue || attrValue->Type() != nsAttrValue::eDoubleValue;
}
JSObject*
HTMLProgressElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLProgressElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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