User:ToxiBoi/LiveCountdown

LiveCountdown
Description	Replaces invocations of {{User:ToxiBoi/LiveCountdownTemplate}} with a live countdown that refreshes the page on finish
Author(s)	ToxiBoi (talk · contribs)
Status	Status: Alpha
First released	April 15, 2020; 4 years ago
Version	v1.2
Updated	April 17, 2020; 4 years ago
Browser support	Google Chrome, Firefox, Edge / IE
Skin support	Cologne Blue, Vector, Modern, Monobook, Timeless, MinervaNeue
Source	User:ToxiBoi/LiveCountdown.js

A userscript that, upon installing, checks the page for ~~all~~ {{User:ToxiBoi/LiveCountdownTemplate}} (further referenced with LCT) transclusions and replaces them with a working countdown. The LCT is similar to the {{Countdown}} template, however, the template may switch between the two when necessary.^[ii]

Right now, this userscript is in a very basic state, so don't expect much.

Installation instructions

Hint: It's much easier if you get ScriptInstaller, then navigate to User:ToxiBoi/LiveCountdown.js and click "Install" at the top.

However, here's the manual method:

Place {{subst:iusc|User:ToxiBoi/LiveCountdown.js}} on Special:MyPage/common.js or a skin-specific page, like Special:MyPage/vector.js.
Clear your cache and enjoy!

To-Do List

Feel free to be bold and add anything to this section (with a signature if you want).

~~Allow more than one countdowns to be supported~~
- Acknowledged. Right as I find out how, I'll be implementing this as soon as possible. A culprit may be the function inside of the scan loop, so this might work if the two are separated. –ToxiBoi! ^(contribs) 00:05, 17 April 2020 (UTC)
  - Done in version v1.2. The function inside of the loop was part of the issue, making the script single-threaded. Moving the loop outside of the function prevents the loop from focusing on just one countdown. –ToxiBoi! ^(contribs) 04:13, 17 April 2020 (UTC)
Add error handling for unknown parameters
- Right now, it only says NaN and the countdown freezes.
  - Confirmed at User:ToxiBoi/LiveCountdownTemplate. –ToxiBoi! ^(contribs) 00:05, 17 April 2020 (UTC)
Add a check to see if the countdown works, without invoking the script directly
- Maybe in a form of special page that the script will change?
~~Write TemplateData~~
- Done. As relevant to this page, I've added it here. –ToxiBoi! ^(contribs) 23:33, 16 April 2020 (UTC)
Allow modification of {{Countdown}} displays
- Not done for now. This may not be possible, as the countdown isn't wrapped in any div or span nor even a class. It's added as a regular paragraph; therefore, a script cannot detect it via regular methods. If it DOES become wrappable in a tag other than "p", then it may even be hard to grab the end date from the display anyway. It's only stored in the module, and the module is pretty much done before the script kicks in. I may consider a non-Lua-based template; however, LCT is the best compatible version of this. –ToxiBoi! ^(contribs) 23:33, 16 April 2020 (UTC)

TemplateData

This is the documentation for the corresponding template.

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:ToxiBoi in articles based on its TemplateData.

TemplateData for ToxiBoi

When used in conjunction with the LiveCountdown userscript, displays a live countdown that refreshes the page on completion

Template parameters
Parameter		Description	Type	Status
Tag	`tag`	The HTML tag to wrap the countdown around (for example, "b" or "small") Default div	Line	optional
Event Name	`event`	The name of the event (to fill in the blank "there are 2 seconds until _____") Default the event begins	String	suggested
Custom Date	`customdate`	ADVANCED: add a custom date. Adding this parameter will override the other date parameters, but may likely prevent non-users from seeing your countdown.	String	optional
Month	`month`	The month of when the countdown should disable. Can be a name (Dec, July) or a number (10, 2).	String	suggested
Day	`day`	The day of when the countdown should disable. Can be a name (Dec, July) or a number (10, 2).	String	suggested
Year	`year`	The year of when the countdown should disable (2020, 3000).	String	optional
Time	`time`	The 24-hour time (12:00-24:00) when the countdown should disable. This cannot be shown to non-users.	String	optional

Notes

^ ^a ^b ^c The userscript is presumed to work with this enabled, but it is impossible for the maintainers to test it (as of Thu, 16 Apr 2020 23:00:03 +0000). Proceed with caution.
^ The LCT checks its parameters to see if it could be referenced with the other {{Countdown}} template, and if so, it will display the Countdown template with an ad: (Tired of purging every few minutes? Try this userscript!)
If the countdown template errors in the process, a firewall would be shown, preventing users from seeing it without downloading the script: You must have the LiveCountdown userscript enabled to view this countdown.

[nottested-1] The userscript is presumed to work with this enabled, but it is impossible for the maintainers to test it (as of Thu, 16 Apr 2020 23:00:03 +0000). Proceed with caution.

[2] The LCT checks its parameters to see if it could be referenced with the other {{Countdown}} template, and if so, it will display the Countdown template with an ad: (Tired of purging every few minutes? Try this userscript!)
If the countdown template errors in the process, a firewall would be shown, preventing users from seeing it without downloading the script: You must have the LiveCountdown userscript enabled to view this countdown.

[i]

[ii]