User:Remember the dot/Long edit summary.js
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![]() | Documentation for this user script can be added at User:Remember the dot/Long edit summary. |
// LIMIT EDIT SUMMARIES TO EXACTLY 250 UTF-8 BYTES
// see EditPage::importFormData() in MediaWiki source for the source of the limit
// created by Ilmari Karonen and Remember_the_dot
addOnloadHook(function() {
var wpSummary = document.getElementById("wpSummary")
if (wpSummary) {
var adjustMaxLength = function () {
// subtract the number of UTF-8 continuation bytes (0x80-0xBF) from the maxlength
var maxLength = 250 - encodeURI(wpSummary.value).split(/%[89AB]/i).length + 1
wpSummary.maxLength = maxLength
// the last character or group might've pushed us over; if so, inform the user
var errorMessage = document.getElementById("editSummaryTooLong")
if (wpSummary.value.length > maxLength) {
if (!errorMessage) {
wpSummary.style.border = "3px solid red"
document.getElementById("wpSave").disabled = true
var editSummaryTooLong = document.createElement("div")
editSummaryTooLong.id = "editSummaryTooLong"
editSummaryTooLong.style.color = "red"
editSummaryTooLong.style.fontWeight = "bold"
editSummaryTooLong.appendChild(document.createTextNode("Your edit summary is too long."))
var wpMinoredit = document.getElementById("wpMinoredit")
wpMinoredit.parentNode.insertBefore(editSummaryTooLong, wpMinoredit)
}
} else {
if (errorMessage) {
wpSummary.style.border = ""
document.getElementById("wpSave").disabled = false
errorMessage.parentNode.removeChild(errorMessage)
}
}
oldValue = wpSummary.value
}
addHandler(wpSummary, "keyup", adjustMaxLength)
addHandler(wpSummary, "change", adjustMaxLength)
adjustMaxLength()
}
})