[英]EventListener not firing - Dynamically create and download calendar event
我正在获取 outlook 日历事件的纯文本并将它们转换为 ics 以使用 Tampermonkey 下载。
几年前我写这篇文章时按钮起作用了,但现在不行了。 我不确定我现在是否需要授予权限,或者是否有其他原因破坏了它。 该按钮添加得很好,但我无法触发事件侦听器。
// .....
// @grant none
//===== convert text only calendar to a donwloadable ICS file
elementReady('#desc-content').then((element) => {
//grab the relevant text
if (element.innerHTML.includes("BEGIN:VCALENDAR")) {
//clean up some bit
var calendar = element.innerHTML.substring(0, element.innerHTML.length - '<div class="clearfix"></div>'.length).replace(/<br\s*[\/]?>/gi, '\n');
//Create a button element
var CalendarEventButton = document.createElement("button");
CalendarEventButton.innerHTML = 'Download Calendar Event';
CalendarEventButton.addEventListener("click", function() {
var filename = "CalendarInvite.ics"; //File name that will be downloaded
download(filename, calendar); //passing in the file name and text to be downloaded
}, false);
element.appendChild(CalendarEventButton); //append the button to the document
}
});
/* Download an embedded file/text*/
function download(file, text) {
//creating an invisible element
var element = document.createElement('a');
element.setAttribute('href',
'data:text/calendar;charset=utf-8, ' +
encodeURIComponent(text));
element.setAttribute('download', file);
// Above code is equivalent to
// <a href="path of file" download="file name">
document.body.appendChild(element);
//onClick property
element.click();
document.body.removeChild(element);
}
const
(ES2015+) 而不是var
(<= ES5)。div.clearfix
。GM_download
方法更容易/可靠的下载。// .....
// @grant GM_download
//===== convert text only calendar to a donwloadable ICS file
elementReady('#desc-content').then((element) => {
// grab the relevant text
const cloned = element.cloneNode(true);
if (!cloned.innerText.includes("BEGIN:VCALENDAR")) return;
// clean up some bit
// use the cloned element so that removing clearfix div
// won't affect DOM
cloned.querySelector('.clearfix')?.remove();
const calendar = cloned.innerHTML.replace(/<br\s*[\/]?>/gi, '\n');
// Create a button element
const calendarEventButton = document.createElement("button");
calendarEventButton.innerHTML = 'Download Calendar Event';
calendarEventButton.addEventListener("click", function() {
const filename = "CalendarInvite.ics"; // File name that will be downloaded
download(filename, calendar); // passing in the file name and text to be downloaded
}, false);
element.appendChild(calendarEventButton); //append the button to the document
});
/* Download an embedded file/text*/
function download(file, text) {
const encoded = encodeURIComponent(text);
const downloadable = `data:text/calendar;charset=utf-8, ${encoded}`;
GM_download(downloadable, file);
}
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