zulip/static/js/ui_util.js

57 lines
1.6 KiB
JavaScript

import $ from "jquery";
// Add functions to this that have no non-trivial
// dependencies other than jQuery.
export function change_tab_to(tabname) {
$(`#gear-menu a[href="${CSS.escape(tabname)}"]`).tab("show");
}
// https://stackoverflow.com/questions/4233265/contenteditable-set-caret-at-the-end-of-the-text-cross-browser
export function place_caret_at_end(el) {
el.focus();
if (window.getSelection !== undefined && document.createRange !== undefined) {
const range = document.createRange();
range.selectNodeContents(el);
range.collapse(false);
const sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
} else if (document.body.createTextRange !== undefined) {
const textRange = document.body.createTextRange();
textRange.moveToElementText(el);
textRange.collapse(false);
textRange.select();
}
}
export function blur_active_element() {
// this blurs anything that may perhaps be actively focused on.
document.activeElement.blur();
}
export function convert_enter_to_click(e) {
const key = e.which;
if (key === 13) {
// Enter
$(e.currentTarget).trigger("click");
}
}
export function update_unread_count_in_dom(unread_count_elem, count) {
// This function is used to update unread count in top left corner
// elements.
const count_span = unread_count_elem.find(".count");
const value_span = count_span.find(".value");
if (count === 0) {
count_span.hide();
value_span.text("");
return;
}
count_span.show();
value_span.text(count);
}