/*
Tooltips v1.1 - 22/10/15
Developed by Wire (#goonstation on irc.synirc.net)
- Added support for screen_loc pixel offsets. Should work. Maybe.
- Added init function to more efficiently send base vars

Configuration:
- Set control to the correct skin element (remember to actually place the skin element)
- Set file to the correct path for the .html file (remember to actually place the html file)
- Attach the datum to the user client on login, e.g.
	/client/New()
		src.tooltips = new /datum/tooltip(src)

Usage:
- Define mouse event procs on your (probably HUD) object and simply call the show and hide procs respectively:
	/obj/screen/hud
		MouseEntered(location, control, params)
			usr.client.tooltip.show(params, title = src.name, content = src.desc)

		MouseExited()
			usr.client.tooltip.hide()

Customization:
- Theming can be done by passing the theme var to show() and using css in the html file to change the look
- For your convenience some pre-made themes are included

Notes:
- You may have noticed 90% of the work is done via javascript on the client. Gotta save those cycles man.
- This is entirely untested in any other codebase besides goonstation so I have no idea if it will port nicely. Good luck!
	- After testing and discussion (Wire, Remie, MrPerson, AnturK) ToolTips are ok and work for /tg/station13
*/


/datum/tooltip
	var/client/owner
	var/control = "mainwindow.tooltip"
	var/file = 'code/modules/tooltip/tooltip.html'
	var/showing = 0
	var/queueHide = 0
	var/init = 0


/datum/tooltip/New(client/C)
	if (C)
		src.owner = C
		src.owner << browse(file2text(src.file), "window=[src.control]")

	..()


/datum/tooltip/proc/show(atom/movable/thing, params = null, title = null, content = null, theme = "default", special = "none")
	if (!thing || !params || (!title && !content) || !src.owner || !isnum(world.icon_size))
		return 0
	if (!src.init)
		//Initialize some vars
		src.init = 1
		src.owner << output(list2params(list(world.icon_size, src.control)), "[src.control]:tooltip.init")

	src.showing = 1

	if (title && content)
		title = "<h1>[title]</h1>"
		content = "<p>[content]</p>"
	else if (title && !content)
		title = "<p>[title]</p>"
	else if (!title && content)
		content = "<p>[content]</p>"

	//Make our dumb param object
	params = {"{ "cursor": "[params]", "screenLoc": "[thing.screen_loc]" }"}

	//Send stuff to the tooltip
	src.owner << output(list2params(list(params, src.owner.view, "[title][content]", theme, special)), "[src.control]:tooltip.update")

	//If a hide() was hit while we were showing, run hide() again to avoid stuck tooltips
	src.showing = 0
	if (src.queueHide)
		src.hide()

	return 1


/datum/tooltip/proc/hide()
	if (src.queueHide)
		spawn(1)
			winshow(src.owner, src.control, 0)
	else
		winshow(src.owner, src.control, 0)

	src.queueHide = src.showing ? 1 : 0

	return 1


/* TG SPECIFIC CODE */


//Open a tooltip for user, at a location based on params
//Theme is a CSS class in tooltip.html, by default this wrapper chooses a CSS class based on the user's UI_style (Midnight, Plasmafire, Retro, etc)
//Includes sanity.checks
/proc/openToolTip(mob/user = null, atom/movable/tip_src = null, params = null,title = "",content = "",theme = "")
	if(istype(user))
		if(user.client && user.client.tooltips)
			if(!theme && user.client.prefs && user.client.prefs.UI_style)
				theme = lowertext(user.client.prefs.UI_style)
			if(!theme)
				theme = "default"
			user.client.tooltips.show(tip_src, params,title,content,theme)


//Arbitrarily close a user's tooltip
//Includes sanity checks.
/proc/closeToolTip(mob/user)
	if(istype(user))
		if(user.client && user.client.tooltips)
			user.client.tooltips.hide()