waapi

Native browser keyframe animations with deterministic seeking for HyperFrames compositions.

• Create animations synchronously with element.animate() using finite durations and iterations, then pause them for adapter control
• The adapter seeks all active animations via document.getAnimations() by setting currentTime to HyperFrames timeline position in milliseconds
• Use fill: "both" to persist seeked states, and model clip timing with delay or visibility control rather than relying on clip-local start times
• Supports staggered animations, keyframe offsets, and easing functions; avoid infinite iterations, animation.finished callbacks, and layout property animation