summaryrefslogtreecommitdiffstats
path: root/dom/svg/SVGImageElement.h
blob: 464a95f9ee29d38a8fd87b801075a1c961702bc2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/* -*- 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/. */

#ifndef DOM_SVG_SVGIMAGEELEMENT_H_
#define DOM_SVG_SVGIMAGEELEMENT_H_

#include "nsImageLoadingContent.h"
#include "mozilla/dom/SVGAnimatedLength.h"
#include "mozilla/dom/SVGAnimatedString.h"
#include "mozilla/dom/SVGGeometryElement.h"
#include "mozilla/dom/SVGAnimatedPreserveAspectRatio.h"
#include "mozilla/gfx/2D.h"

nsresult NS_NewSVGImageElement(
    nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

namespace mozilla {
class SVGImageFrame;

namespace dom {
class DOMSVGAnimatedPreserveAspectRatio;

using SVGImageElementBase = SVGGraphicsElement;

class SVGImageElement final : public SVGImageElementBase,
                              public nsImageLoadingContent {
  friend class mozilla::SVGImageFrame;

 protected:
  explicit SVGImageElement(
      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  virtual ~SVGImageElement();
  JSObject* WrapNode(JSContext* aCx,
                     JS::Handle<JSObject*> aGivenProto) override;
  friend nsresult(::NS_NewSVGImageElement(
      nsIContent** aResult,
      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));

 public:
  // interfaces:

  NS_DECL_ISUPPORTS_INHERITED

  // EventTarget
  void AsyncEventRunning(AsyncEventDispatcher* aEvent) override;

  // nsImageLoadingContent interface
  CORSMode GetCORSMode() override;

  // nsIContent interface
  bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
                      const nsAString& aValue,
                      nsIPrincipal* aMaybeScriptedPrincipal,
                      nsAttrValue& aResult) override;
  void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
                    const nsAttrValue* aValue, const nsAttrValue* aOldValue,
                    nsIPrincipal* aSubjectPrincipal, bool aNotify) override;

  nsresult BindToTree(BindContext&, nsINode& aParent) override;
  void UnbindFromTree(bool aNullParent) override;

  ElementState IntrinsicState() const override;

  void DestroyContent() override;

  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* name) const override;

  // SVGSVGElement methods:
  bool HasValidDimensions() const override;

  nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  void MaybeLoadSVGImage();

  // WebIDL
  already_AddRefed<DOMSVGAnimatedLength> X();
  already_AddRefed<DOMSVGAnimatedLength> Y();
  already_AddRefed<DOMSVGAnimatedLength> Width();
  already_AddRefed<DOMSVGAnimatedLength> Height();
  already_AddRefed<DOMSVGAnimatedPreserveAspectRatio> PreserveAspectRatio();
  already_AddRefed<DOMSVGAnimatedString> Href();
  void GetCrossOrigin(nsAString& aCrossOrigin) {
    // Null for both missing and invalid defaults is ok, since we
    // always parse to an enum value, so we don't need an invalid
    // default, and we _want_ the missing default to be null.
    GetEnumAttr(nsGkAtoms::crossorigin, nullptr, aCrossOrigin);
  }
  void SetCrossOrigin(const nsAString& aCrossOrigin, ErrorResult& aError) {
    SetOrRemoveNullableStringAttr(nsGkAtoms::crossorigin, aCrossOrigin, aError);
  }

  void SetDecoding(const nsAString& aDecoding, ErrorResult& aError) {
    SetAttr(nsGkAtoms::decoding, aDecoding, aError);
  }
  void GetDecoding(nsAString& aValue);

  already_AddRefed<Promise> Decode(ErrorResult& aRv);

  static nsCSSPropertyID GetCSSPropertyIdForAttrEnum(uint8_t aAttrEnum);

  gfx::Rect GeometryBounds(const gfx::Matrix& aToBoundsSpace);

 protected:
  nsresult LoadSVGImage(bool aForce, bool aNotify);
  bool ShouldLoadImage() const;

  LengthAttributesInfo GetLengthInfo() override;
  SVGAnimatedPreserveAspectRatio* GetAnimatedPreserveAspectRatio() override;
  StringAttributesInfo GetStringInfo() override;

  // Override for nsImageLoadingContent.
  nsIContent* AsContent() override { return this; }

  enum { ATTR_X, ATTR_Y, ATTR_WIDTH, ATTR_HEIGHT };
  SVGAnimatedLength mLengthAttributes[4];
  static LengthInfo sLengthInfo[4];

  SVGAnimatedPreserveAspectRatio mPreserveAspectRatio;

  enum { HREF, XLINK_HREF };
  SVGAnimatedString mStringAttributes[2];
  static StringInfo sStringInfo[2];
};

}  // namespace dom
}  // namespace mozilla

#endif  // DOM_SVG_SVGIMAGEELEMENT_H_