feat: DownloadAction for the action trigger framework#24432
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Starts a file download in the browser when a trigger fires, using a synthesised <a href download> click inside the gesture. Three flavours: a static URL (optionally with a filename), a DownloadHandler whose stream resource is wired through Element.setAttribute (same lifecycle as Image.setSrc / Anchor.setHref), and an Action.Input<String> for URLs resolved on the client at fire time. No outcome callback — browsers do not report download completion.
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anandfresh
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May 27, 2026
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Starts a file download in the browser when a trigger fires, using a
synthesised click inside the gesture. Three flavours:
a static URL (optionally with a filename), a DownloadHandler whose
stream resource is wired through Element.setAttribute (same lifecycle
as Image.setSrc / Anchor.setHref), and an Action.Input for URLs
resolved on the client at fire time. No outcome callback — browsers do
not report download completion.