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authorAndy Green <andy@warmcat.com>2018-06-24 15:05:20 +0800
committerJason A. Donenfeld <Jason@zx2c4.com>2022-12-19 16:50:23 +0100
commit907134b7a29177cb45aa461c549c004b1ae875af (patch)
tree6d53fee58030b08535f741da6a53acdb21730daa /.gitignore
parentaee39b4e9a45e1ba507c0017de50bb9dbbae7af8 (diff)
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js: add dynamic age update
This patch updates the emitted "ages" dynamically on the client side. After updating on completion of the document load, it sets a timer to update according to the smallest age it found. If there are any ages listed in minutes, then it will update again in 10s. When the most recent age is in hours, it updates every 5m. If days, then every 30m and so on. This keeps the cost of the dynamic updates at worst once per 10s. The updates are done entirely on the client side without contact with the server. To make this work reliably, since parsing datetimes is unreliable in browser js, the unix time is added as an attribute to all age spans. To make that reliable cross-platform, the unix time is treated as a uint64_t when it is formatted for printing. The rules for display conversion of the age is aligned with the existing server-side rules in ui-shared.h. If the client or server-side time are not synchronized by ntpd etc, ages shown on the client will not relate to the original ages computed at the server. The client updates the ages immediately when the DOM has finished loading, so in the case the times at the server and client are not aligned, this patch changes what the user sees on the page to reflect patch age compared to client time. If the server and client clocks are aligned, this patch makes no difference to what is seen on the page. Signed-off-by: Andy Green <andy@warmcat.com> Signed-off-by: Christian Hesse <mail@eworm.de>
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