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comparison: dom/smil/nsSMILTimeValueSpec.h
dom/smil/nsSMILTimeValueSpec.h
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:08cb57b8b319 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef NS_SMILTIMEVALUESPEC_H_ | |
| 7 #define NS_SMILTIMEVALUESPEC_H_ | |
| 8 | |
| 9 #include "mozilla/Attributes.h" | |
| 10 #include "nsSMILTimeValueSpecParams.h" | |
| 11 #include "nsReferencedElement.h" | |
| 12 #include "nsAutoPtr.h" | |
| 13 #include "nsIDOMEventListener.h" | |
| 14 | |
| 15 class nsAString; | |
| 16 class nsSMILTimeValue; | |
| 17 class nsSMILTimedElement; | |
| 18 class nsSMILTimeContainer; | |
| 19 class nsSMILInstanceTime; | |
| 20 class nsSMILInterval; | |
| 21 | |
| 22 namespace mozilla { | |
| 23 class EventListenerManager; | |
| 24 } // namespace mozilla | |
| 25 | |
| 26 //---------------------------------------------------------------------- | |
| 27 // nsSMILTimeValueSpec class | |
| 28 // | |
| 29 // An individual element of a 'begin' or 'end' attribute, e.g. '5s', 'a.end'. | |
| 30 // This class handles the parsing of such specifications and performs the | |
| 31 // necessary event handling (for event, repeat, and accesskey specifications) | |
| 32 // and synchronisation (for syncbase specifications). | |
| 33 // | |
| 34 // For an overview of how this class is related to other SMIL time classes see | |
| 35 // the documentation in nsSMILTimeValue.h | |
| 36 | |
| 37 class nsSMILTimeValueSpec | |
| 38 { | |
| 39 public: | |
| 40 typedef mozilla::dom::Element Element; | |
| 41 | |
| 42 nsSMILTimeValueSpec(nsSMILTimedElement& aOwner, bool aIsBegin); | |
| 43 ~nsSMILTimeValueSpec(); | |
| 44 | |
| 45 nsresult SetSpec(const nsAString& aStringSpec, Element* aContextNode); | |
| 46 void ResolveReferences(nsIContent* aContextNode); | |
| 47 bool IsEventBased() const; | |
| 48 | |
| 49 void HandleNewInterval(nsSMILInterval& aInterval, | |
| 50 const nsSMILTimeContainer* aSrcContainer); | |
| 51 void HandleTargetElementChange(Element* aNewTarget); | |
| 52 | |
| 53 // For created nsSMILInstanceTime objects | |
| 54 bool DependsOnBegin() const; | |
| 55 void HandleChangedInstanceTime(const nsSMILInstanceTime& aBaseTime, | |
| 56 const nsSMILTimeContainer* aSrcContainer, | |
| 57 nsSMILInstanceTime& aInstanceTimeToUpdate, | |
| 58 bool aObjectChanged); | |
| 59 void HandleDeletedInstanceTime(nsSMILInstanceTime& aInstanceTime); | |
| 60 | |
| 61 // Cycle-collection support | |
| 62 void Traverse(nsCycleCollectionTraversalCallback* aCallback); | |
| 63 void Unlink(); | |
| 64 | |
| 65 protected: | |
| 66 void UpdateReferencedElement(Element* aFrom, Element* aTo); | |
| 67 void UnregisterFromReferencedElement(Element* aElement); | |
| 68 nsSMILTimedElement* GetTimedElement(Element* aElement); | |
| 69 bool IsWhitelistedEvent(); | |
| 70 void RegisterEventListener(Element* aElement); | |
| 71 void UnregisterEventListener(Element* aElement); | |
| 72 mozilla::EventListenerManager* GetEventListenerManager(Element* aElement); | |
| 73 void HandleEvent(nsIDOMEvent* aEvent); | |
| 74 bool CheckEventDetail(nsIDOMEvent* aEvent); | |
| 75 bool CheckRepeatEventDetail(nsIDOMEvent* aEvent); | |
| 76 bool CheckAccessKeyEventDetail(nsIDOMEvent* aEvent); | |
| 77 nsSMILTimeValue ConvertBetweenTimeContainers(const nsSMILTimeValue& aSrcTime, | |
| 78 const nsSMILTimeContainer* aSrcContainer); | |
| 79 bool ApplyOffset(nsSMILTimeValue& aTime) const; | |
| 80 | |
| 81 nsSMILTimedElement* mOwner; | |
| 82 bool mIsBegin; // Indicates if *we* are a begin spec, | |
| 83 // not to be confused with | |
| 84 // mParams.mSyncBegin which indicates | |
| 85 // if we're synced with the begin of | |
| 86 // the target. | |
| 87 nsSMILTimeValueSpecParams mParams; | |
| 88 | |
| 89 class TimeReferenceElement : public nsReferencedElement | |
| 90 { | |
| 91 public: | |
| 92 TimeReferenceElement(nsSMILTimeValueSpec* aOwner) : mSpec(aOwner) { } | |
| 93 void ResetWithElement(Element* aTo) { | |
| 94 nsRefPtr<Element> from = get(); | |
| 95 Unlink(); | |
| 96 ElementChanged(from, aTo); | |
| 97 } | |
| 98 | |
| 99 protected: | |
| 100 virtual void ElementChanged(Element* aFrom, Element* aTo) MOZ_OVERRIDE | |
| 101 { | |
| 102 nsReferencedElement::ElementChanged(aFrom, aTo); | |
| 103 mSpec->UpdateReferencedElement(aFrom, aTo); | |
| 104 } | |
| 105 virtual bool IsPersistent() MOZ_OVERRIDE { return true; } | |
| 106 private: | |
| 107 nsSMILTimeValueSpec* mSpec; | |
| 108 }; | |
| 109 | |
| 110 TimeReferenceElement mReferencedElement; | |
| 111 | |
| 112 class EventListener MOZ_FINAL : public nsIDOMEventListener | |
| 113 { | |
| 114 public: | |
| 115 EventListener(nsSMILTimeValueSpec* aOwner) : mSpec(aOwner) { } | |
| 116 void Disconnect() | |
| 117 { | |
| 118 mSpec = nullptr; | |
| 119 } | |
| 120 | |
| 121 NS_DECL_ISUPPORTS | |
| 122 NS_DECL_NSIDOMEVENTLISTENER | |
| 123 | |
| 124 private: | |
| 125 nsSMILTimeValueSpec* mSpec; | |
| 126 }; | |
| 127 nsRefPtr<EventListener> mEventListener; | |
| 128 }; | |
| 129 | |
| 130 #endif // NS_SMILTIMEVALUESPEC_H_ |
