import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/html/HTMLProgressElement.cpp

@@ -0,0 +1,109 @@
+/* -*- 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(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