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 "SMILStringType.h"
8
9 #include "mozilla/SMILValue.h"
10 #include "nsDebug.h"
11 #include "nsString.h"
12
13 namespace mozilla {
14
Init(SMILValue & aValue) const15 void SMILStringType::Init(SMILValue& aValue) const {
16 MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
17 aValue.mU.mPtr = new nsString();
18 aValue.mType = this;
19 }
20
Destroy(SMILValue & aValue) const21 void SMILStringType::Destroy(SMILValue& aValue) const {
22 MOZ_ASSERT(aValue.mType == this, "Unexpected SMIL value");
23 delete static_cast<nsAString*>(aValue.mU.mPtr);
24 aValue.mU.mPtr = nullptr;
25 aValue.mType = SMILNullType::Singleton();
26 }
27
Assign(SMILValue & aDest,const SMILValue & aSrc) const28 nsresult SMILStringType::Assign(SMILValue& aDest, const SMILValue& aSrc) const {
29 MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types");
30 MOZ_ASSERT(aDest.mType == this, "Unexpected SMIL value");
31
32 const nsAString* src = static_cast<const nsAString*>(aSrc.mU.mPtr);
33 nsAString* dst = static_cast<nsAString*>(aDest.mU.mPtr);
34 *dst = *src;
35 return NS_OK;
36 }
37
IsEqual(const SMILValue & aLeft,const SMILValue & aRight) const38 bool SMILStringType::IsEqual(const SMILValue& aLeft,
39 const SMILValue& aRight) const {
40 MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
41 MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
42
43 const nsAString* leftString = static_cast<const nsAString*>(aLeft.mU.mPtr);
44 const nsAString* rightString = static_cast<nsAString*>(aRight.mU.mPtr);
45 return *leftString == *rightString;
46 }
47
Add(SMILValue & aDest,const SMILValue & aValueToAdd,uint32_t aCount) const48 nsresult SMILStringType::Add(SMILValue& aDest, const SMILValue& aValueToAdd,
49 uint32_t aCount) const {
50 MOZ_ASSERT(aValueToAdd.mType == aDest.mType, "Trying to add invalid types");
51 MOZ_ASSERT(aValueToAdd.mType == this, "Unexpected source type");
52 return NS_ERROR_FAILURE; // string values can't be added to each other
53 }
54
ComputeDistance(const SMILValue & aFrom,const SMILValue & aTo,double & aDistance) const55 nsresult SMILStringType::ComputeDistance(const SMILValue& aFrom,
56 const SMILValue& aTo,
57 double& aDistance) const {
58 MOZ_ASSERT(aFrom.mType == aTo.mType, "Trying to compare different types");
59 MOZ_ASSERT(aFrom.mType == this, "Unexpected source type");
60 return NS_ERROR_FAILURE; // there is no concept of distance between string
61 // values
62 }
63
Interpolate(const SMILValue & aStartVal,const SMILValue & aEndVal,double aUnitDistance,SMILValue & aResult) const64 nsresult SMILStringType::Interpolate(const SMILValue& aStartVal,
65 const SMILValue& aEndVal,
66 double aUnitDistance,
67 SMILValue& aResult) const {
68 MOZ_ASSERT(aStartVal.mType == aEndVal.mType,
69 "Trying to interpolate different types");
70 MOZ_ASSERT(aStartVal.mType == this, "Unexpected types for interpolation");
71 MOZ_ASSERT(aResult.mType == this, "Unexpected result type");
72 return NS_ERROR_FAILURE; // string values do not interpolate
73 }
74
75 } // namespace mozilla
76