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CHOMPStation2/code/defines/procs/sd_Alert.dm
2015-04-24 17:11:14 +02:00

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/* sd_Alert library
by Shadowdarke (shadowdarke@byond.com)
sd_Alert() is a powerful and flexible alternative to the built in BYOND
alert() proc. sd_Alert offers timed popups, unlimited buttons, custom
appearance, and even the option to popup without stealing keyboard focus
from the map or command line.
Please see demo.dm for detailed examples.
FORMAT
sd_Alert(who, message, title, buttons, default, duration, unfocus, \
size, table, style, tag, select, flags)
ARGUMENTS
who - the client or mob to display the alert to.
message - text message to display
title - title of the alert box
buttons - list of buttons
Default Value: list("Ok")
default - default button selestion
Default Value: the first button in the list
duration - the number of ticks before this alert expires. If not
set, the alert lasts until a button is clicked.
Default Value: 0 (unlimited)
unfocus - if this value is set, the popup will not steal keyboard
focus from the map or command line.
Default Value: 1 (do not take focus)
size - size of the popup window in px
Default Value: "300x200"
table - optional parameters for the HTML table in the alert
Default Value: "width=100% height=100%" (fill the window)
style - optional style sheet information
tag - lets you specify a certain tag for this sd_Alert so you may manipulate it
externally. (i.e. force the alert to close, change options and redisplay,
reuse the same window, etc.)
select - if set, the buttons will be replaced with a selection box with a number of
lines displayed equal to this value.
Default value: 0 (use buttons)
flags - optional flags effecting the alert display. These flags may be ORed (|)
together for multiple effects.
SD_ALERT_SCROLL = display a scrollbar
SD_ALERT_SELECT_MULTI = forces selection box display (instead of
buttons) allows the user to select multiple
choices.
SD_ALERT_LINKS = display each choice as a plain text link.
Any selection box style overrides this flag.
SD_ALERT_NOVALIDATE = don't validate responses
Default value: SD_ALERT_SCROLL
(button display with scroll bar, validate responses)
RETURNS
The text of the selected button, or null if the alert duration expired
without a button click.
Version 1 changes (from version 0):
* Added the tag, select, and flags arguments, thanks to several suggestions from Foomer.
* Split the sd_Alert/Alert() proc into New(), Display(), and Response() to allow more
customization by developers. Primarily developers would want to use Display() to change
the display of active tagged windows
*/
#define SD_ALERT_SCROLL 1
#define SD_ALERT_SELECT_MULTI 2
#define SD_ALERT_LINKS 4
#define SD_ALERT_NOVALIDATE 8
proc/sd_Alert(client/who, message, title, buttons = list("Ok"),\
default, duration = 0, unfocus = 1, size = "300x200", \
table = "width=100% height=100%", style, tag, select, flags = SD_ALERT_SCROLL)
if(ismob(who))
var/mob/M = who
who = M.client
if(!istype(who)) CRASH("sd_Alert: Invalid target:[who] (\ref[who])")
var/sd_alert/T = locate(tag)
if(T)
if(istype(T)) qdel(T)
else CRASH("sd_Alert: tag \"[tag]\" is already in use by datum '[T]' (type: [T.type])")
T = new(who, tag)
if(duration)
spawn(duration)
if(T) qdel(T)
return
T.Display(message,title,buttons,default,unfocus,size,table,style,select,flags)
. = T.Response()
sd_alert
var
client/target
response
list/validation
Destroy()
target << browse(null,"window=\ref[src]")
..()
New(who, tag)
..()
target = who
src.tag = tag
Topic(href,params[])
if(usr.client != target) return
response = params["clk"]
proc/Display(message,title,list/buttons,default,unfocus,size,table,style,select,flags)
if(unfocus) spawn() target << browse(null,null)
if(istext(buttons)) buttons = list(buttons)
if(!default) default = buttons[1]
if(!(flags & SD_ALERT_NOVALIDATE)) validation = buttons.Copy()
var/html = {"<head><title>[title]</title>[style]<script>\
function c(x) {document.location.href='BYOND://?src=\ref[src];'+x;}\
</script></head><body onLoad="fcs.focus();"\
[(flags&SD_ALERT_SCROLL)?"":" scroll=no"]><table [table]><tr>\
<td>[message]</td></tr><tr><th>"}
if(select || (flags & SD_ALERT_SELECT_MULTI)) // select style choices
html += {"<FORM ID=fcs ACTION='BYOND://?' METHOD=GET>\
<INPUT TYPE=HIDDEN NAME=src VALUE='\ref[src]'>
<SELECT NAME=clk SIZE=[select]\
[(flags & SD_ALERT_SELECT_MULTI)?" MULTIPLE":""]>"}
for(var/b in buttons)
html += "<OPTION[(b == default)?" SELECTED":""]>\
[html_encode(b)]</OPTION>"
html += "</SELECT><BR><INPUT TYPE=SUBMIT VALUE=Submit></FORM>"
else if(flags & SD_ALERT_LINKS) // text link style
for(var/b in buttons)
var/list/L = list()
L["clk"] = b
var/html_string=list2params(L)
var/focus
if(b == default) focus = " ID=fcs"
html += "<A[focus] href=# onClick=\"c('[html_string]')\">[html_encode(b)]</A>\
<BR>"
else // button style choices
for(var/b in buttons)
var/list/L = list()
L["clk"] = b
var/html_string=list2params(L)
var/focus
if(b == default) focus = " ID=fcs"
html += "<INPUT[focus] TYPE=button VALUE='[html_encode(b)]' \
onClick=\"c('[html_string]')\"> "
html += "</th></tr></table></body>"
target << browse(html,"window=\ref[src];size=[size];can_close=0")
proc/Response()
var/validated
while(!validated)
while(target && !response) // wait for a response
sleep(2)
if(response && validation)
if(istype(response, /list))
var/list/L = response - validation
if(L.len) response = null
else validated = 1
else if(response in validation) validated = 1
else response=null
else validated = 1
spawn(2) qdel(src)
return response