new functions composer.composeCase and composer.composeType

[RealRaven2000]

The new functions composer.composeCase and composer.composeType are designed to retrieve the particular compose type from composer:

composeType: [strings] build in compose type from nsIMsgCompType.
Possible return values:

"New"
"Reply"
"ReplyAll"
"ForwardAsAttachment"
"ForwardInline"
"NewsPost"
"ReplyToSender"
"ReplyToGroup"
"ReplyToSenderAndGroup"
"Draft"
"Template"
"MailToUrl"
"ReplyWithTemplate"
"ReplyToList"
"Redirect"
"EditAsNew"
"EditTemplate"

composeCase: [string] simplified compose case, used by SmartTemplates. This is broken down to 3 different states, depending on composeType. Depending on this the appropriate account templates are used. Possible values:

"new"    // write - generally used for new mails.
"rsp"      // reply / reply all / reply list etc.
"fwd"     // forward

[RealRaven2000]

In order to use these values in a sandbox script, you can use the following syntax:

<p>
 %{% 
  (async () => {
    let t = await composer_composeType();
    let c = await composer_composeCase();
    switch(t) {
      case "ForwardAsAttachment":
        return "Please find attached the files:"
      case "ReplyAll":
        return "To whom it may concern."
    }
})()
%}%
</p>