Bug 275293 – [SVG] Handle `repeatEvent` for svg animations

• Status: NEW
• Component: SVG

[Ahmad Saleem]

Hi Team,

While going through SVG Animations failure, I noticed that we fail 'repeat' event.

Blink Commit: https://chromium.googlesource.com/chromium/blink/+/f7d3a4aaa8598d79b137dde63e9b401ea351e1e9

WebKit Source: https://github.com/WebKit/WebKit/blob/502bfe649c550c59266753403cb4b2ab86854333/Source/WebCore/svg/animation/SVGSMILElement.cpp

Following compiles:

> Source/WebCore/dom/EventNames.json:

Add -> "repeatEvent": { },

> Source/WebCore/svg/animation/SVGSMILElement.cpp:

In 'SVGSMILElement::progress':

After:

if (oldActiveState == Inactive)
            startedActiveInterval();

Add following:

if (repeat && repeat != m_lastRepeat)
            smilEventSender().dispatchEventSoon(*this, eventNames().repeatEventEvent);

In same, after 'if (seekToTime)' (within same loop) add following:

if (repeat) {
            for (unsigned repeatEventCount = 1; repeatEventCount < repeat; repeatEventCount++) {
                smilEventSender().dispatchEventSoon(*this, eventNames().repeatEventEvent);
            }
            if (m_activeState == Inactive)
                smilEventSender().dispatchEventSoon(*this, eventNames().repeatEventEvent);
        }

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It progress following: https://wpt.fyi/results/svg/animations/repeat-event.svg?label=experimental&label=master&aligned=

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Just raising so we can fix it.

Thanks!

[Radar WebKit Bug Importer]

<rdar://problem/129919749>

[Ahmad Saleem]

Pull request: https://github.com/WebKit/WebKit/pull/29658