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#1171: Use of ical.js for line formatting while exporting

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This commit is contained in:
Fabrice Mouhartem 2023-11-02 11:58:07 +01:00
parent 66a2815993
commit 4c80de725f
1 changed files with 5 additions and 41 deletions
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46
www/calendar/export.js
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@ -3,8 +3,9 @@
define([
'/customize/pages.js',
'/common/common-util.js',
'/calendar/recurrence.js'
], function (Pages, Util, Rec) {
'/calendar/recurrence.js',
'/lib/ical.min.js'
], function (Pages, Util, Rec, ICAL) {
var module = {};
var getICSDate = function (str) {
@ -96,42 +97,6 @@ define([
return rrule;
};
// XXX Below function: from ical.js, should be imported instead.
// XXX However, if it's done, it would be better to refactor the
// XXX export module to directly use ical.js for exporting ICS.
var foldline = function(aLine) {
var foldLength = 75;
var newLineChar = '\r\n';
let result = "";
let line = aLine || "", pos = 0, line_length = 0;
//pos counts position in line for the UTF-16 presentation
//line_length counts the bytes for the UTF-8 presentation
while (line.length) {
let cp = line.codePointAt(pos);
if (cp < 128) {
++line_length;
}
else if (cp < 2048) {
line_length += 2;//needs 2 UTF-8 bytes
}
else if (cp < 65536) {
line_length += 3;
}
else {
line_length += 4; //cp is less than 1114112
}
if (line_length < foldLength + 1) {
pos += cp > 65535 ? 2 : 1;
}
else {
result += newLineChar + " " + line.slice(0, Math.max(0, pos));
line = line.slice(Math.max(0, pos));
pos = line_length = 0;
}
}
return result.slice(newLineChar.length + 1);
};
var addEvent = function (arr, data, recId) {
var uid = data.id;
var dt = getDT(data);
@ -142,10 +107,9 @@ define([
var formatDescription = function(str) {
var componentName = 'DESCRIPTION:';
var result = componentName + str.replace(/\n/g, ["\\n"]);
// XXX Should use ical.js helper foldline instead ↓
// XXX https://kewisch.github.io/ical.js/api/ICAL.module_helpers.html#.foldline
var ICAL = window.ICAL;
// In RFC5545: https://www.rfc-editor.org/rfc/rfc5545#section-3.1
result = foldline(result);
result = ICAL.helpers.foldline(result);
return result;
};