microblog/app/static/new.js

53 lines
2.1 KiB
JavaScript

// The new post textarea
var ta = document.getElementsByTagName("textarea")[0];
// Helper for inserting text (emojis) in the textarea
function insertAtCursor (textToInsert) {
ta.focus();
const isSuccess = document.execCommand("insertText", false, textToInsert);
// Firefox (non-standard method)
if (!isSuccess) {
// Credits to https://www.everythingfrontend.com/posts/insert-text-into-textarea-at-cursor-position.html
// get current text of the input
const value = ta.value;
// save selection start and end position
const start = ta.selectionStart;
const end = ta.selectionEnd;
// update the value with our text inserted
ta.value = value.slice(0, start) + textToInsert + value.slice(end);
// update cursor to be at the end of insertion
ta.selectionStart = ta.selectionEnd = start + textToInsert.length;
}
}
// Emoji click callback func
var ji = function (ev) {
insertAtCursor(ev.target.attributes.alt.value + " ");
ta.focus()
//console.log(document.execCommand('insertText', false /*no UI*/, ev.target.attributes.alt.value));
}
// Enable the click for each emojis
var items = document.getElementsByClassName("ji")
for (var i = 0; i < items.length; i++) {
items[i].addEventListener('click', ji);
}
// Add new input text dynamically to allow setting an alt text on attachments
var files = document.getElementById("files");
var alts = document.getElementById("alts");
files.addEventListener("change", function(e) {
// Reset the div content
alts.innerHTML = "";
// Add an input for each files
for (var i = 0; i < e.target.files.length; i++) {
var p = document.createElement("p");
var altInput = document.createElement("input");
altInput.setAttribute("type", "text");
altInput.setAttribute("name", "alt_" + e.target.files[i].name);
altInput.setAttribute("placeholder", "Alt text for " + e.target.files[i].name);
altInput.setAttribute("style", "width:95%;")
p.appendChild(altInput);
alts.appendChild(p);
}
});