ChangeLog

2011-07-27  Scott Graham  <scottmg@google.com>

        Different elapsed times used during update of animation

        https://bugs.webkit.org/show_bug.cgi?id=65274

        Reviewed by NOBODY (OOPS!).

        When updating animations, save and use the elapsed time as

        m_elapsedForAnimationUpdate so that all animations are updated

        consistently rather than resampling the clock repeatedly.

        No new tests, but existing svg animations should continue to work

        correctly, and elapsed() is stable when stepping in debugger.

        * svg/animation/SMILTimeContainer.cpp:

        (WebCore::SMILTimeContainer::SMILTimeContainer):

        (WebCore::SMILTimeContainer::elapsed):

        (WebCore::SMILTimeContainer::updateAnimations):

        * svg/animation/SMILTimeContainer.h:

2011-07-25  Mihai Parparita  <mihaip@chromium.org>

        [Chromium] Add better WebKit API for chrome.tabs.insertCSS extension API

Source/WebCore/svg/animation/SMILTimeContainer.cpp

@@SMILTimeContainer::SMILTimeContainer(SVGSVGElement* owner)

    : m_beginTime(0)

    , m_pauseTime(0)

    , m_accumulatedPauseTime(0)

49 , m_elapsedForAnimationUpdate(-1)

    , m_documentOrderIndexesDirty(false)

    , m_timer(this, &SMILTimeContainer::timerFired)

    , m_ownerSVGElement(owner)

@@SMILTime SMILTimeContainer::elapsed() const

{

    if (!m_beginTime)

        return 0;

    if (m_elapsedForAnimationUpdate >= 0.0)

        return m_elapsedForAnimationUpdate;

    return currentTime() - m_beginTime - m_accumulatedPauseTime;

}

@@void SMILTimeContainer::updateAnimations(SMILTime elapsed, double nextManualSamp

        elapsed = SMILTime(nextManualSampleTime) + samplingDiff;

    }

252 m_elapsedForAnimationUpdate = elapsed.value();

253

    // Sort according to priority. Elements with later begin time have higher priority.

    // In case of a tie, document order decides. 

    // FIXME: This should also consider timing relationships between the elements. Dependents

@@void SMILTimeContainer::updateAnimations(SMILTime elapsed, double nextManualSamp

    startTimer(earliersFireTime, animationFrameDelay);

    Document::updateStyleForAllDocuments();

319

320 m_elapsedForAnimationUpdate = -1;

}

#endif

Source/WebCore/svg/animation/SMILTimeContainer.h

@@private:

    double m_beginTime;

    double m_pauseTime;

    double m_accumulatedPauseTime;

84 double m_elapsedForAnimationUpdate;

    bool m_documentOrderIndexesDirty;

    