File size: 1,779 Bytes
6a7089a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | package bridge
import (
"context"
"github.com/chromedp/cdproto/emulation"
"github.com/chromedp/cdproto/page"
"github.com/chromedp/chromedp"
)
// DisableAnimationsCSS is injected to force-disable all CSS animations and transitions.
const DisableAnimationsCSS = `
(function() {
const style = document.createElement('style');
style.setAttribute('data-pinchtab', 'no-animations');
style.textContent = '*, *::before, *::after { animation: none !important; animation-duration: 0s !important; transition: none !important; transition-duration: 0s !important; scroll-behavior: auto !important; }';
(document.head || document.documentElement).appendChild(style);
})();
`
// InjectNoAnimations adds a persistent script (via CDP) that disables CSS
// animations on every document load. Used when BRIDGE_NO_ANIMATIONS=true.
func (b *Bridge) InjectNoAnimations(ctx context.Context) error {
return chromedp.Run(ctx,
chromedp.ActionFunc(func(ctx context.Context) error {
_, err := page.AddScriptToEvaluateOnNewDocument(DisableAnimationsCSS).Do(ctx)
return err
}),
chromedp.ActionFunc(func(ctx context.Context) error {
return emulation.SetEmulatedMedia().
WithFeatures([]*emulation.MediaFeature{
{Name: "prefers-reduced-motion", Value: "reduce"},
}).Do(ctx)
}),
)
}
// DisableAnimationsOnce runs the animation-disabling CSS on the current page
// (one-shot, for per-request ?noAnimations=true).
func DisableAnimationsOnce(ctx context.Context) error {
return chromedp.Run(ctx,
chromedp.Evaluate(DisableAnimationsCSS, nil),
chromedp.ActionFunc(func(ctx context.Context) error {
return emulation.SetEmulatedMedia().
WithFeatures([]*emulation.MediaFeature{
{Name: "prefers-reduced-motion", Value: "reduce"},
}).Do(ctx)
}),
)
}
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