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echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
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! -name nsXPCOMCID.h \
! -name prtypes.h \
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-o -iname "*.c" \
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-o -iname "*.idl" \
-o -iname "*.ipdl" \
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convert PRInt8 int8_t
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625 lines
24 KiB
C++
625 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef NS_SMILTIMEDELEMENT_H_
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#define NS_SMILTIMEDELEMENT_H_
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#include "nsISMILAnimationElement.h"
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#include "nsSMILInterval.h"
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#include "nsSMILInstanceTime.h"
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#include "nsSMILMilestone.h"
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#include "nsSMILTimeValueSpec.h"
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#include "nsSMILRepeatCount.h"
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#include "nsSMILTypes.h"
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#include "nsTArray.h"
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#include "nsTHashtable.h"
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#include "nsHashKeys.h"
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#include "nsAutoPtr.h"
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#include "nsAttrValue.h"
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class nsSMILAnimationFunction;
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class nsSMILTimeContainer;
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class nsSMILTimeValue;
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class nsIAtom;
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//----------------------------------------------------------------------
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// nsSMILTimedElement
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class nsSMILTimedElement
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{
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public:
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nsSMILTimedElement();
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~nsSMILTimedElement();
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typedef mozilla::dom::Element Element;
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/*
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* Sets the owning animation element which this class uses to convert between
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* container times and to register timebase elements.
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*/
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void SetAnimationElement(nsISMILAnimationElement* aElement);
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/*
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* Returns the time container with which this timed element is associated or
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* nullptr if it is not associated with a time container.
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*/
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nsSMILTimeContainer* GetTimeContainer();
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/*
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* Returns the element targeted by the animation element. Needed for
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* registering event listeners against the appropriate element.
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*/
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mozilla::dom::Element* GetTargetElement()
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{
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return mAnimationElement ?
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mAnimationElement->GetTargetElementContent() :
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nullptr;
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}
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/**
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* Methods for supporting the nsIDOMElementTimeControl interface.
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*/
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/*
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* Adds a new begin instance time at the current container time plus or minus
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* the specified offset.
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*
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* @param aOffsetSeconds A real number specifying the number of seconds to add
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* to the current container time.
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* @return NS_OK if the operation succeeeded, or an error code otherwise.
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*/
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nsresult BeginElementAt(double aOffsetSeconds);
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/*
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* Adds a new end instance time at the current container time plus or minus
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* the specified offset.
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*
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* @param aOffsetSeconds A real number specifying the number of seconds to add
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* to the current container time.
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* @return NS_OK if the operation succeeeded, or an error code otherwise.
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*/
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nsresult EndElementAt(double aOffsetSeconds);
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/**
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* Methods for supporting the nsSVGAnimationElement interface.
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*/
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/**
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* According to SVG 1.1 SE this returns
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*
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* the begin time, in seconds, for this animation element's current
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* interval, if it exists, regardless of whether the interval has begun yet.
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*
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* @return the start time as defined above in milliseconds or an unresolved
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* time if there is no current interval.
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*/
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nsSMILTimeValue GetStartTime() const;
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/**
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* Returns the simple duration of this element.
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*
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* @return the simple duration in milliseconds or INDEFINITE.
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*/
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nsSMILTimeValue GetSimpleDuration() const
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{
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return mSimpleDur;
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}
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/**
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* Methods for supporting hyperlinking
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*/
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/**
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* Internal SMIL methods
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*/
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/**
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* Returns the time to seek the document to when this element is targetted by
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* a hyperlink.
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*
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* The behavior is defined here:
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* http://www.w3.org/TR/smil-animation/#HyperlinkSemantics
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*
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* It is very similar to GetStartTime() with the exception that when the
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* element is not active, the begin time of the *first* interval is returned.
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*
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* @return the time to seek the documen to in milliseconds or an unresolved
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* time if there is no resolved interval.
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*/
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nsSMILTimeValue GetHyperlinkTime() const;
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/**
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* Adds an instance time object this element's list of instance times.
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* These instance times are used when creating intervals.
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*
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* This method is typically called by an nsSMILTimeValueSpec.
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*
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* @param aInstanceTime The time to add, expressed in container time.
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* @param aIsBegin true if the time to be added represents a begin
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* time or false if it represents an end time.
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*/
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void AddInstanceTime(nsSMILInstanceTime* aInstanceTime, bool aIsBegin);
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/**
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* Requests this element update the given instance time.
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*
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* This method is typically called by a child nsSMILTimeValueSpec.
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*
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* @param aInstanceTime The instance time to update.
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* @param aUpdatedTime The time to update aInstanceTime with.
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* @param aDependentTime The instance time upon which aInstanceTime should be
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* based.
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* @param aIsBegin true if the time to be updated represents a begin
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* instance time or false if it represents an end
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* instance time.
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*/
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void UpdateInstanceTime(nsSMILInstanceTime* aInstanceTime,
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nsSMILTimeValue& aUpdatedTime,
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bool aIsBegin);
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/**
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* Removes an instance time object from this element's list of instance times.
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*
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* This method is typically called by a child nsSMILTimeValueSpec.
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*
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* @param aInstanceTime The instance time to remove.
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* @param aIsBegin true if the time to be removed represents a begin
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* time or false if it represents an end time.
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*/
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void RemoveInstanceTime(nsSMILInstanceTime* aInstanceTime, bool aIsBegin);
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/**
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* Removes all the instance times associated with the given
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* nsSMILTimeValueSpec object. Used when an ID assignment changes and hence
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* all the previously associated instance times become invalid.
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*
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* @param aSpec The nsSMILTimeValueSpec object whose created
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* nsSMILInstanceTime's should be removed.
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* @param aIsBegin true if the times to be removed represent begin
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* times or false if they are end times.
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*/
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void RemoveInstanceTimesForCreator(const nsSMILTimeValueSpec* aSpec,
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bool aIsBegin);
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/**
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* Sets the object that will be called by this timed element each time it is
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* sampled.
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*
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* In Schmitz's model it is possible to associate several time clients with
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* a timed element but for now we only allow one.
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*
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* @param aClient The time client to associate. Any previous time client
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* will be disassociated and no longer sampled. Setting this
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* to nullptr will simply disassociate the previous client, if
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* any.
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*/
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void SetTimeClient(nsSMILAnimationFunction* aClient);
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/**
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* Samples the object at the given container time. Timing intervals are
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* updated and if this element is active at the given time the associated time
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* client will be sampled with the appropriate simple time.
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*
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* @param aContainerTime The container time at which to sample.
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*/
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void SampleAt(nsSMILTime aContainerTime);
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/**
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* Performs a special sample for the end of an interval. Such a sample should
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* only advance the timed element (and any dependent elements) to the waiting
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* or postactive state. It should not cause a transition to the active state.
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* Transition to the active state is only performed on a regular SampleAt.
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*
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* This allows all interval ends at a given time to be processed first and
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* hence the new interval can be established based on full information of the
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* available instance times.
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*
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* @param aContainerTime The container time at which to sample.
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*/
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void SampleEndAt(nsSMILTime aContainerTime);
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/**
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* Informs the timed element that its time container has changed time
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* relative to document time. The timed element therefore needs to update its
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* dependent elements (which may belong to a different time container) so they
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* can re-resolve their times.
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*/
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void HandleContainerTimeChange();
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/**
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* Resets this timed element's accumulated times and intervals back to start
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* up state.
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*
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* This is used for backwards seeking where rather than accumulating
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* historical timing state and winding it back, we reset the element and seek
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* forwards.
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*/
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void Rewind();
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/**
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* Attempts to set an attribute on this timed element.
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*
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* @param aAttribute The name of the attribute to set. The namespace of this
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* attribute is not specified as it is checked by the host
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* element. Only attributes in the namespace defined for
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* SMIL attributes in the host language are passed to the
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* timed element.
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* @param aValue The attribute value.
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* @param aResult The nsAttrValue object that may be used for storing the
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* parsed result.
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* @param aContextNode The element to use for context when resolving
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* references to other elements.
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* @param[out] aParseResult The result of parsing the attribute. Will be set
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* to NS_OK if parsing is successful.
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*
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* @return true if the given attribute is a timing attribute, false
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* otherwise.
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*/
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bool SetAttr(nsIAtom* aAttribute, const nsAString& aValue,
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nsAttrValue& aResult, Element* aContextNode,
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nsresult* aParseResult = nullptr);
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/**
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* Attempts to unset an attribute on this timed element.
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*
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* @param aAttribute The name of the attribute to set. As with SetAttr the
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* namespace of the attribute is not specified (see
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* SetAttr).
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*
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* @return true if the given attribute is a timing attribute, false
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* otherwise.
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*/
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bool UnsetAttr(nsIAtom* aAttribute);
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/**
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* Adds a syncbase dependency to the list of dependents that will be notified
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* when this timed element creates, deletes, or updates its current interval.
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*
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* @param aDependent The nsSMILTimeValueSpec object to notify. A raw pointer
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* to this object will be stored. Therefore it is necessary
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* for the object to be explicitly unregistered (with
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* RemoveDependent) when it is destroyed.
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*/
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void AddDependent(nsSMILTimeValueSpec& aDependent);
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/**
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* Removes a syncbase dependency from the list of dependents that are notified
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* when the current interval is modified.
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*
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* @param aDependent The nsSMILTimeValueSpec object to unregister.
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*/
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void RemoveDependent(nsSMILTimeValueSpec& aDependent);
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/**
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* Determines if this timed element is dependent on the given timed element's
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* begin time for the interval currently in effect. Whilst the element is in
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* the active state this is the current interval and in the postactive or
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* waiting state this is the previous interval if one exists. In all other
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* cases the element is not considered a time dependent of any other element.
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*
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* @param aOther The potential syncbase element.
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* @return true if this timed element's begin time for the currently
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* effective interval is directly or indirectly derived from aOther, false
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* otherwise.
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*/
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bool IsTimeDependent(const nsSMILTimedElement& aOther) const;
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/**
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* Called when the timed element has been bound to the document so that
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* references from this timed element to other elements can be resolved.
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*
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* @param aContextNode The node which provides the necessary context for
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* resolving references. This is typically the element in
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* the host language that owns this timed element. Should
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* not be null.
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*/
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void BindToTree(nsIContent* aContextNode);
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/**
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* Called when the target of the animation has changed so that event
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* registrations can be updated.
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*/
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void HandleTargetElementChange(mozilla::dom::Element* aNewTarget);
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/**
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* Called when the timed element has been removed from a document so that
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* references to other elements can be broken.
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*/
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void DissolveReferences() { Unlink(); }
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// Cycle collection
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void Traverse(nsCycleCollectionTraversalCallback* aCallback);
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void Unlink();
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typedef bool (*RemovalTestFunction)(nsSMILInstanceTime* aInstance);
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protected:
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// Typedefs
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typedef nsTArray<nsAutoPtr<nsSMILTimeValueSpec> > TimeValueSpecList;
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typedef nsTArray<nsRefPtr<nsSMILInstanceTime> > InstanceTimeList;
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typedef nsTArray<nsAutoPtr<nsSMILInterval> > IntervalList;
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typedef nsPtrHashKey<nsSMILTimeValueSpec> TimeValueSpecPtrKey;
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typedef nsTHashtable<TimeValueSpecPtrKey> TimeValueSpecHashSet;
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// Helper classes
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class InstanceTimeComparator {
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public:
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bool Equals(const nsSMILInstanceTime* aElem1,
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const nsSMILInstanceTime* aElem2) const;
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bool LessThan(const nsSMILInstanceTime* aElem1,
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const nsSMILInstanceTime* aElem2) const;
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};
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struct NotifyTimeDependentsParams {
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nsSMILTimedElement* mTimedElement;
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nsSMILTimeContainer* mTimeContainer;
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};
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// Templated helper functions
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template <class TestFunctor>
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void RemoveInstanceTimes(InstanceTimeList& aArray, TestFunctor& aTest);
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//
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// Implementation helpers
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//
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nsresult SetBeginSpec(const nsAString& aBeginSpec,
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Element* aContextNode,
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RemovalTestFunction aRemove);
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nsresult SetEndSpec(const nsAString& aEndSpec,
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Element* aContextNode,
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RemovalTestFunction aRemove);
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nsresult SetSimpleDuration(const nsAString& aDurSpec);
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nsresult SetMin(const nsAString& aMinSpec);
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nsresult SetMax(const nsAString& aMaxSpec);
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nsresult SetRestart(const nsAString& aRestartSpec);
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nsresult SetRepeatCount(const nsAString& aRepeatCountSpec);
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nsresult SetRepeatDur(const nsAString& aRepeatDurSpec);
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nsresult SetFillMode(const nsAString& aFillModeSpec);
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void UnsetBeginSpec(RemovalTestFunction aRemove);
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void UnsetEndSpec(RemovalTestFunction aRemove);
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void UnsetSimpleDuration();
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void UnsetMin();
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void UnsetMax();
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void UnsetRestart();
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void UnsetRepeatCount();
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void UnsetRepeatDur();
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void UnsetFillMode();
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nsresult SetBeginOrEndSpec(const nsAString& aSpec,
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Element* aContextNode,
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bool aIsBegin,
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RemovalTestFunction aRemove);
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void ClearSpecs(TimeValueSpecList& aSpecs,
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InstanceTimeList& aInstances,
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RemovalTestFunction aRemove);
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void ClearIntervals();
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void DoSampleAt(nsSMILTime aContainerTime, bool aEndOnly);
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/**
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* Helper function to check for an early end and, if necessary, update the
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* current interval accordingly.
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*
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* See SMIL 3.0, section 5.4.5, Element life cycle, "Active Time - Playing an
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* interval" for a description of ending early.
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*
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* @param aSampleTime The current sample time. Early ends should only be
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* applied at the last possible moment (i.e. if they are at
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* or before the current sample time) and only if the
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* current interval is not already ending.
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* @return true if the end time of the current interval was updated,
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* false otherwise.
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*/
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bool ApplyEarlyEnd(const nsSMILTimeValue& aSampleTime);
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/**
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* Clears certain state in response to the element restarting.
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*
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* This state is described in SMIL 3.0, section 5.4.3, Resetting element state
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*/
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void Reset();
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/**
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* Completes a seek operation by sending appropriate events and, in the case
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* of a backwards seek, updating the state of timing information that was
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* previously considered historical.
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*/
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void DoPostSeek();
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/**
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* Unmarks instance times that were previously preserved because they were
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* considered important historical milestones but are no longer such because
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* a backwards seek has been performed.
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*/
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void UnpreserveInstanceTimes(InstanceTimeList& aList);
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/**
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* Helper function to iterate through this element's accumulated timing
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* information (specifically old nsSMILIntervals and nsSMILTimeInstanceTimes)
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* and discard items that are no longer needed or exceed some threshold of
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* accumulated state.
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*/
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void FilterHistory();
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// Helper functions for FilterHistory to clear old nsSMILIntervals and
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// nsSMILInstanceTimes respectively.
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void FilterIntervals();
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void FilterInstanceTimes(InstanceTimeList& aList);
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/**
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* Calculates the next acceptable interval for this element after the
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* specified interval, or, if no previous interval is specified, it will be
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* the first interval with an end time after t=0.
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*
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* @see SMILANIM 3.6.8
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*
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* @param aPrevInterval The previous interval used. If supplied, the first
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* interval that begins after aPrevInterval will be
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* returned. May be nullptr.
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* @param aReplacedInterval The interval that is being updated (if any). This
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* used to ensure we don't return interval endpoints
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* that are dependent on themselves. May be nullptr.
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* @param aFixedBeginTime The time to use for the start of the interval. This
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* is used when only the endpoint of the interval
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* should be updated such as when the animation is in
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* the ACTIVE state. May be nullptr.
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* @param[out] aResult The next interval. Will be unchanged if no suitable
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* interval was found (in which case false will be
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* returned).
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* @return true if a suitable interval was found, false otherwise.
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*/
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bool GetNextInterval(const nsSMILInterval* aPrevInterval,
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const nsSMILInterval* aReplacedInterval,
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const nsSMILInstanceTime* aFixedBeginTime,
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nsSMILInterval& aResult) const;
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nsSMILInstanceTime* GetNextGreater(const InstanceTimeList& aList,
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const nsSMILTimeValue& aBase,
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int32_t& aPosition) const;
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nsSMILInstanceTime* GetNextGreaterOrEqual(const InstanceTimeList& aList,
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const nsSMILTimeValue& aBase,
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int32_t& aPosition) const;
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nsSMILTimeValue CalcActiveEnd(const nsSMILTimeValue& aBegin,
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const nsSMILTimeValue& aEnd) const;
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nsSMILTimeValue GetRepeatDuration() const;
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nsSMILTimeValue ApplyMinAndMax(const nsSMILTimeValue& aDuration) const;
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nsSMILTime ActiveTimeToSimpleTime(nsSMILTime aActiveTime,
|
|
uint32_t& aRepeatIteration);
|
|
nsSMILInstanceTime* CheckForEarlyEnd(
|
|
const nsSMILTimeValue& aContainerTime) const;
|
|
void UpdateCurrentInterval(bool aForceChangeNotice = false);
|
|
void SampleSimpleTime(nsSMILTime aActiveTime);
|
|
void SampleFillValue();
|
|
nsresult AddInstanceTimeFromCurrentTime(nsSMILTime aCurrentTime,
|
|
double aOffsetSeconds, bool aIsBegin);
|
|
void RegisterMilestone();
|
|
bool GetNextMilestone(nsSMILMilestone& aNextMilestone) const;
|
|
|
|
// Notification methods. Note that these notifications can result in nested
|
|
// calls to this same object. Therefore,
|
|
// (i) we should not perform notification until this object is in
|
|
// a consistent state to receive callbacks, and
|
|
// (ii) after calling these methods we must assume that the state of the
|
|
// element may have changed.
|
|
void NotifyNewInterval();
|
|
void NotifyChangedInterval(nsSMILInterval* aInterval,
|
|
bool aBeginObjectChanged,
|
|
bool aEndObjectChanged);
|
|
|
|
void FireTimeEventAsync(uint32_t aMsg, int32_t aDetail);
|
|
const nsSMILInstanceTime* GetEffectiveBeginInstance() const;
|
|
const nsSMILInterval* GetPreviousInterval() const;
|
|
bool HasPlayed() const { return !mOldIntervals.IsEmpty(); }
|
|
bool EndHasEventConditions() const;
|
|
bool AreEndTimesDependentOn(
|
|
const nsSMILInstanceTime* aBase) const;
|
|
|
|
// Reset the current interval by first passing ownership to a temporary
|
|
// variable so that if Unlink() results in us receiving a callback,
|
|
// mCurrentInterval will be nullptr and we will be in a consistent state.
|
|
void ResetCurrentInterval()
|
|
{
|
|
if (mCurrentInterval) {
|
|
// Transfer ownership to temp var. (This sets mCurrentInterval to null.)
|
|
nsAutoPtr<nsSMILInterval> interval(mCurrentInterval);
|
|
interval->Unlink();
|
|
}
|
|
}
|
|
|
|
// Hashtable callback methods
|
|
PR_STATIC_CALLBACK(PLDHashOperator) NotifyNewIntervalCallback(
|
|
TimeValueSpecPtrKey* aKey, void* aData);
|
|
|
|
//
|
|
// Members
|
|
//
|
|
nsISMILAnimationElement* mAnimationElement; // [weak] won't outlive
|
|
// owner
|
|
TimeValueSpecList mBeginSpecs; // [strong]
|
|
TimeValueSpecList mEndSpecs; // [strong]
|
|
|
|
nsSMILTimeValue mSimpleDur;
|
|
|
|
nsSMILRepeatCount mRepeatCount;
|
|
nsSMILTimeValue mRepeatDur;
|
|
|
|
nsSMILTimeValue mMin;
|
|
nsSMILTimeValue mMax;
|
|
|
|
enum nsSMILFillMode
|
|
{
|
|
FILL_REMOVE,
|
|
FILL_FREEZE
|
|
};
|
|
nsSMILFillMode mFillMode;
|
|
static nsAttrValue::EnumTable sFillModeTable[];
|
|
|
|
enum nsSMILRestartMode
|
|
{
|
|
RESTART_ALWAYS,
|
|
RESTART_WHENNOTACTIVE,
|
|
RESTART_NEVER
|
|
};
|
|
nsSMILRestartMode mRestartMode;
|
|
static nsAttrValue::EnumTable sRestartModeTable[];
|
|
|
|
InstanceTimeList mBeginInstances;
|
|
InstanceTimeList mEndInstances;
|
|
uint32_t mInstanceSerialIndex;
|
|
|
|
nsSMILAnimationFunction* mClient;
|
|
nsAutoPtr<nsSMILInterval> mCurrentInterval;
|
|
IntervalList mOldIntervals;
|
|
uint32_t mCurrentRepeatIteration;
|
|
nsSMILMilestone mPrevRegisteredMilestone;
|
|
static const nsSMILMilestone sMaxMilestone;
|
|
static const uint8_t sMaxNumIntervals;
|
|
static const uint8_t sMaxNumInstanceTimes;
|
|
|
|
// Set of dependent time value specs to be notified when establishing a new
|
|
// current interval. Change notifications and delete notifications are handled
|
|
// by the interval.
|
|
//
|
|
// [weak] The nsSMILTimeValueSpec objects register themselves and unregister
|
|
// on destruction. Likewise, we notify them when we are destroyed.
|
|
TimeValueSpecHashSet mTimeDependents;
|
|
|
|
/**
|
|
* The state of the element in its life-cycle. These states are based on the
|
|
* element life-cycle described in SMILANIM 3.6.8
|
|
*/
|
|
enum nsSMILElementState
|
|
{
|
|
STATE_STARTUP,
|
|
STATE_WAITING,
|
|
STATE_ACTIVE,
|
|
STATE_POSTACTIVE
|
|
};
|
|
nsSMILElementState mElementState;
|
|
|
|
enum nsSMILSeekState
|
|
{
|
|
SEEK_NOT_SEEKING,
|
|
SEEK_FORWARD_FROM_ACTIVE,
|
|
SEEK_FORWARD_FROM_INACTIVE,
|
|
SEEK_BACKWARD_FROM_ACTIVE,
|
|
SEEK_BACKWARD_FROM_INACTIVE
|
|
};
|
|
nsSMILSeekState mSeekState;
|
|
|
|
// Used to batch updates to the timing model
|
|
class AutoIntervalUpdateBatcher;
|
|
bool mDeferIntervalUpdates;
|
|
bool mDoDeferredUpdate; // Set if an update to the current interval was
|
|
// requested while mDeferIntervalUpdates was set
|
|
|
|
// Recursion depth checking
|
|
uint8_t mDeleteCount;
|
|
uint8_t mUpdateIntervalRecursionDepth;
|
|
static const uint8_t sMaxUpdateIntervalRecursionDepth;
|
|
};
|
|
|
|
#endif // NS_SMILTIMEDELEMENT_H_
|