khtml/svg/animation/SMILTimeContainer.h

   1 /*
   2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  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.
  24  */
  25
  26 #ifndef SMILTimeContainer_H
  27 #define SMILTimeContainer_H
  28
  29 #if ENABLE(SVG)
  30
  31 #include "PlatformString.h"
  32 #include "SMILTime.h"
  33 #include "StringHash.h"
  34 #include "Timer.h"
  35 #include <wtf/HashSet.h>
  36 #include <wtf/PassRefPtr.h>
  37 #include <wtf/RefCounted.h>
  38
  39 namespace WebCore {
  40
  41     class SVGElement;
  42     class SVGSMILElement;
  43     class SVGSVGElement;
  44
  45     class SMILTimeContainer : public RefCounted<SMILTimeContainer>  {
  46     public:
  47         static PassRefPtr<SMILTimeContainer> create(SVGSVGElement* owner) { return adoptRef(new SMILTimeContainer(owner)); }
  48
  49         void schedule(SVGSMILElement*);
  50         void unschedule(SVGSMILElement*);
  51
  52         SMILTime elapsed() const;
  53
  54         bool isActive() const;
  55         bool isPaused() const;
  56
  57         void begin();
  58         void pause();
  59         void resume();
  60
  61         void setDocumentOrderIndexesDirty() { m_documentOrderIndexesDirty = true; }
  62
  63     private:
  64         SMILTimeContainer(SVGSVGElement* owner);
  65
  66         void timerFired(Timer<SMILTimeContainer>*);
  67         void startTimer(SMILTime fireTime, SMILTime minimumDelay = 0);
  68         void updateAnimations(SMILTime elapsed);
  69
  70         void updateDocumentOrderIndexes();
  71         void sortByPriority(Vector<SVGSMILElement*>& smilElements, SMILTime elapsed);
  72
  73         typedef pair<SVGElement*, String> ElementAttributePair;
  74         String baseValueFor(ElementAttributePair);
  75
  76         double m_beginTime;
  77         double m_pauseTime;
  78         double m_accumulatedPauseTime;
  79
  80         bool m_documentOrderIndexesDirty;
  81
  82         Timer<SMILTimeContainer> m_timer;
  83
  84         typedef HashSet<SVGSMILElement*> TimingElementSet;
  85         TimingElementSet m_scheduledAnimations;
  86
  87         typedef HashMap<ElementAttributePair, String> BaseValueMap;
  88         BaseValueMap m_savedBaseValues;
  89
  90         SVGSVGElement* m_ownerSVGElement;
  91     };
  92 }
  93
  94 #endif
  95 #endif