/src/mozilla-central/dom/html/HTMLProgressElement.cpp
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "mozilla/EventStates.h" |
8 | | #include "mozilla/dom/HTMLProgressElement.h" |
9 | | #include "mozilla/dom/HTMLProgressElementBinding.h" |
10 | | |
11 | | NS_IMPL_NS_NEW_HTML_ELEMENT(Progress) |
12 | | |
13 | | namespace mozilla { |
14 | | namespace dom { |
15 | | |
16 | | const double HTMLProgressElement::kIndeterminatePosition = -1.0; |
17 | | const double HTMLProgressElement::kDefaultValue = 0.0; |
18 | | const double HTMLProgressElement::kDefaultMax = 1.0; |
19 | | |
20 | | |
21 | | HTMLProgressElement::HTMLProgressElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) |
22 | | : nsGenericHTMLElement(std::move(aNodeInfo)) |
23 | 0 | { |
24 | 0 | // We start out indeterminate |
25 | 0 | AddStatesSilently(NS_EVENT_STATE_INDETERMINATE); |
26 | 0 | } |
27 | | |
28 | | HTMLProgressElement::~HTMLProgressElement() |
29 | 0 | { |
30 | 0 | } |
31 | | |
32 | | NS_IMPL_ELEMENT_CLONE(HTMLProgressElement) |
33 | | |
34 | | |
35 | | EventStates |
36 | | HTMLProgressElement::IntrinsicState() const |
37 | 0 | { |
38 | 0 | EventStates state = nsGenericHTMLElement::IntrinsicState(); |
39 | 0 |
|
40 | 0 | if (IsIndeterminate()) { |
41 | 0 | state |= NS_EVENT_STATE_INDETERMINATE; |
42 | 0 | } |
43 | 0 |
|
44 | 0 | return state; |
45 | 0 | } |
46 | | |
47 | | bool |
48 | | HTMLProgressElement::ParseAttribute(int32_t aNamespaceID, |
49 | | nsAtom* aAttribute, |
50 | | const nsAString& aValue, |
51 | | nsIPrincipal* aMaybeScriptedPrincipal, |
52 | | nsAttrValue& aResult) |
53 | 0 | { |
54 | 0 | if (aNamespaceID == kNameSpaceID_None) { |
55 | 0 | if (aAttribute == nsGkAtoms::value || aAttribute == nsGkAtoms::max) { |
56 | 0 | return aResult.ParseDoubleValue(aValue); |
57 | 0 | } |
58 | 0 | } |
59 | 0 | |
60 | 0 | return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, |
61 | 0 | aValue, |
62 | 0 | aMaybeScriptedPrincipal, |
63 | 0 | aResult); |
64 | 0 | } |
65 | | |
66 | | double |
67 | | HTMLProgressElement::Value() const |
68 | 0 | { |
69 | 0 | const nsAttrValue* attrValue = mAttrs.GetAttr(nsGkAtoms::value); |
70 | 0 | if (!attrValue || attrValue->Type() != nsAttrValue::eDoubleValue || |
71 | 0 | attrValue->GetDoubleValue() < 0.0) { |
72 | 0 | return kDefaultValue; |
73 | 0 | } |
74 | 0 | |
75 | 0 | return std::min(attrValue->GetDoubleValue(), Max()); |
76 | 0 | } |
77 | | |
78 | | double |
79 | | HTMLProgressElement::Max() const |
80 | 0 | { |
81 | 0 | const nsAttrValue* attrMax = mAttrs.GetAttr(nsGkAtoms::max); |
82 | 0 | if (!attrMax || attrMax->Type() != nsAttrValue::eDoubleValue || |
83 | 0 | attrMax->GetDoubleValue() <= 0.0) { |
84 | 0 | return kDefaultMax; |
85 | 0 | } |
86 | 0 | |
87 | 0 | return attrMax->GetDoubleValue(); |
88 | 0 | } |
89 | | |
90 | | double |
91 | | HTMLProgressElement::Position() const |
92 | 0 | { |
93 | 0 | if (IsIndeterminate()) { |
94 | 0 | return kIndeterminatePosition; |
95 | 0 | } |
96 | 0 | |
97 | 0 | return Value() / Max(); |
98 | 0 | } |
99 | | |
100 | | bool |
101 | | HTMLProgressElement::IsIndeterminate() const |
102 | 0 | { |
103 | 0 | const nsAttrValue* attrValue = mAttrs.GetAttr(nsGkAtoms::value); |
104 | 0 | return !attrValue || attrValue->Type() != nsAttrValue::eDoubleValue; |
105 | 0 | } |
106 | | |
107 | | JSObject* |
108 | | HTMLProgressElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) |
109 | 0 | { |
110 | 0 | return HTMLProgressElement_Binding::Wrap(aCx, this, aGivenProto); |
111 | 0 | } |
112 | | |
113 | | } // namespace dom |
114 | | } // namespace mozilla |