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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef SMILTime_h | 26 #ifndef SMILTime_h |
| 27 #define SMILTime_h | 27 #define SMILTime_h |
| 28 | 28 |
| 29 #include "wtf/Allocator.h" |
| 29 #include "wtf/Assertions.h" | 30 #include "wtf/Assertions.h" |
| 30 #include "wtf/HashTraits.h" | 31 #include "wtf/HashTraits.h" |
| 31 #include "wtf/MathExtras.h" | 32 #include "wtf/MathExtras.h" |
| 32 | 33 |
| 33 namespace blink { | 34 namespace blink { |
| 34 | 35 |
| 35 class SMILTime { | 36 class SMILTime { |
| 37 ALLOW_ONLY_INLINE_ALLOCATION(); |
| 36 public: | 38 public: |
| 37 SMILTime() : m_time(0) { } | 39 SMILTime() : m_time(0) { } |
| 38 SMILTime(double time) : m_time(time) { } | 40 SMILTime(double time) : m_time(time) { } |
| 39 | 41 |
| 40 static SMILTime unresolved() { return std::numeric_limits<double>::quiet_NaN
(); } | 42 static SMILTime unresolved() { return std::numeric_limits<double>::quiet_NaN
(); } |
| 41 static SMILTime indefinite() { return std::numeric_limits<double>::infinity(
); } | 43 static SMILTime indefinite() { return std::numeric_limits<double>::infinity(
); } |
| 42 | 44 |
| 43 double value() const { return m_time; } | 45 double value() const { return m_time; } |
| 44 | 46 |
| 45 bool isFinite() const { return std::isfinite(m_time); } | 47 bool isFinite() const { return std::isfinite(m_time); } |
| 46 bool isIndefinite() const { return std::isinf(m_time); } | 48 bool isIndefinite() const { return std::isinf(m_time); } |
| 47 bool isUnresolved() const { return std::isnan(m_time); } | 49 bool isUnresolved() const { return std::isnan(m_time); } |
| 48 | 50 |
| 49 private: | 51 private: |
| 50 double m_time; | 52 double m_time; |
| 51 }; | 53 }; |
| 52 | 54 |
| 53 class SMILTimeWithOrigin { | 55 class SMILTimeWithOrigin { |
| 56 ALLOW_ONLY_INLINE_ALLOCATION(); |
| 54 public: | 57 public: |
| 55 enum Origin { | 58 enum Origin { |
| 56 ParserOrigin, | 59 ParserOrigin, |
| 57 ScriptOrigin | 60 ScriptOrigin |
| 58 }; | 61 }; |
| 59 | 62 |
| 60 SMILTimeWithOrigin() | 63 SMILTimeWithOrigin() |
| 61 : m_origin(ParserOrigin) | 64 : m_origin(ParserOrigin) |
| 62 { | 65 { |
| 63 } | 66 } |
| 64 | 67 |
| 65 SMILTimeWithOrigin(const SMILTime& time, Origin origin) | 68 SMILTimeWithOrigin(const SMILTime& time, Origin origin) |
| 66 : m_time(time) | 69 : m_time(time) |
| 67 , m_origin(origin) | 70 , m_origin(origin) |
| 68 { | 71 { |
| 69 } | 72 } |
| 70 | 73 |
| 71 const SMILTime& time() const { return m_time; } | 74 const SMILTime& time() const { return m_time; } |
| 72 bool originIsScript() const { return m_origin == ScriptOrigin; } | 75 bool originIsScript() const { return m_origin == ScriptOrigin; } |
| 73 | 76 |
| 74 private: | 77 private: |
| 75 SMILTime m_time; | 78 SMILTime m_time; |
| 76 Origin m_origin; | 79 Origin m_origin; |
| 77 }; | 80 }; |
| 78 | 81 |
| 79 struct SMILInterval { | 82 struct SMILInterval { |
| 83 DISALLOW_ALLOCATION(); |
| 80 SMILInterval() { } | 84 SMILInterval() { } |
| 81 SMILInterval(const SMILTime& begin, const SMILTime& end) : begin(begin), end
(end) { } | 85 SMILInterval(const SMILTime& begin, const SMILTime& end) : begin(begin), end
(end) { } |
| 82 | 86 |
| 83 SMILTime begin; | 87 SMILTime begin; |
| 84 SMILTime end; | 88 SMILTime end; |
| 85 }; | 89 }; |
| 86 | 90 |
| 87 inline bool operator==(const SMILTime& a, const SMILTime& b) { return (a.isUnres
olved() && b.isUnresolved()) || a.value() == b.value(); } | 91 inline bool operator==(const SMILTime& a, const SMILTime& b) { return (a.isUnres
olved() && b.isUnresolved()) || a.value() == b.value(); } |
| 88 inline bool operator!(const SMILTime& a) { return !a.isFinite() || !a.value(); } | 92 inline bool operator!(const SMILTime& a) { return !a.isFinite() || !a.value(); } |
| 89 inline bool operator!=(const SMILTime& a, const SMILTime& b) { return !operator=
=(a, b); } | 93 inline bool operator!=(const SMILTime& a, const SMILTime& b) { return !operator=
=(a, b); } |
| (...skipping 12 matching lines...) Expand all Loading... |
| 102 SMILTime operator*(const SMILTime&, const SMILTime&); | 106 SMILTime operator*(const SMILTime&, const SMILTime&); |
| 103 | 107 |
| 104 inline bool operator!=(const SMILInterval& a, const SMILInterval& b) | 108 inline bool operator!=(const SMILInterval& a, const SMILInterval& b) |
| 105 { | 109 { |
| 106 // Compare the "raw" values since the operator!= for SMILTime always return | 110 // Compare the "raw" values since the operator!= for SMILTime always return |
| 107 // true for non-finite times. | 111 // true for non-finite times. |
| 108 return a.begin.value() != b.begin.value() || a.end.value() != b.end.value(); | 112 return a.begin.value() != b.begin.value() || a.end.value() != b.end.value(); |
| 109 } | 113 } |
| 110 | 114 |
| 111 struct SMILTimeHash { | 115 struct SMILTimeHash { |
| 116 STATIC_ONLY(SMILTimeHash); |
| 112 static unsigned hash(const SMILTime& key) { return WTF::FloatHash<double>::h
ash(key.value()); } | 117 static unsigned hash(const SMILTime& key) { return WTF::FloatHash<double>::h
ash(key.value()); } |
| 113 static bool equal(const SMILTime& a, const SMILTime& b) { return WTF::FloatH
ash<double>::equal(a.value(), b.value()); } | 118 static bool equal(const SMILTime& a, const SMILTime& b) { return WTF::FloatH
ash<double>::equal(a.value(), b.value()); } |
| 114 static const bool safeToCompareToEmptyOrDeleted = true; | 119 static const bool safeToCompareToEmptyOrDeleted = true; |
| 115 }; | 120 }; |
| 116 | 121 |
| 117 } // namespace blink | 122 } // namespace blink |
| 118 | 123 |
| 119 namespace WTF { | 124 namespace WTF { |
| 120 | 125 |
| 121 template<> struct DefaultHash<blink::SMILTime> { | 126 template<> struct DefaultHash<blink::SMILTime> { |
| 122 typedef blink::SMILTimeHash Hash; | 127 typedef blink::SMILTimeHash Hash; |
| 123 }; | 128 }; |
| 124 | 129 |
| 125 template<> struct HashTraits<blink::SMILTime> : GenericHashTraits<blink::SMILTim
e> { | 130 template<> struct HashTraits<blink::SMILTime> : GenericHashTraits<blink::SMILTim
e> { |
| 126 static blink::SMILTime emptyValue() { return blink::SMILTime::unresolved();
} | 131 static blink::SMILTime emptyValue() { return blink::SMILTime::unresolved();
} |
| 127 static void constructDeletedValue(blink::SMILTime& slot, bool) { slot = -std
::numeric_limits<double>::infinity(); } | 132 static void constructDeletedValue(blink::SMILTime& slot, bool) { slot = -std
::numeric_limits<double>::infinity(); } |
| 128 static bool isDeletedValue(blink::SMILTime value) { return value == -std::nu
meric_limits<double>::infinity(); } | 133 static bool isDeletedValue(blink::SMILTime value) { return value == -std::nu
meric_limits<double>::infinity(); } |
| 129 }; | 134 }; |
| 130 | 135 |
| 131 } // namespace WTF | 136 } // namespace WTF |
| 132 | 137 |
| 133 #endif // SMILTime_h | 138 #endif // SMILTime_h |
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