fix(theme/book): Use passive listeners for touchstart, touchmove (#575)
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@ -422,7 +422,7 @@ function playpen_text(playpen) {
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x: e.touches[0].clientX,
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time: Date.now()
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};
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});
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}, { passive: true });
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document.addEventListener('touchmove', function (e) {
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if (!firstContact)
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@ -440,7 +440,7 @@ function playpen_text(playpen) {
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firstContact = null;
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}
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});
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}, { passive: true });
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// Scroll sidebar to current active section
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var activeSection = sidebar.querySelector(".active");
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