friendica/view/theme/frio/js/hovercard.js

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/*
* The javascript for friendicas hovercard. Bootstraps popover is needed.
*
* Much parts of the code are from Hannes Mannerheims <h@nnesmannerhe.im>
* qvitter code (https://github.com/hannesmannerheim/qvitter)
*
* It is licensed under the GNU Affero General Public License <http://www.gnu.org/licenses/>
*
*/
$(document).ready(function () {
// Elements with the class "userinfo" will get a hover-card.
// Note that this elements does need a href attribute which links to
// a valid profile url
$("body").on("mouseover", ".userinfo, .wall-item-responses a, .wall-item-bottom .mention a", function (e) {
let timeNow = new Date().getTime();
removeAllHovercards(e, timeNow);
let contact_url = false;
let targetElement = $(this);
// get href-attribute
if (targetElement.is('[href]')) {
contact_url = targetElement.attr('href');
} else {
return true;
}
// no hover card if the element has the no-hover-card class
if (targetElement.hasClass('no-hover-card')) {
return true;
}
// no hovercard for anchor links
if (contact_url.substring(0, 1) === '#') {
return true;
}
targetElement.attr('data-awaiting-hover-card', timeNow);
// store the title in an other data attribute beause bootstrap
// popover destroys the title.attribute. We can restore it later
let title = targetElement.attr("title");
targetElement.attr({"data-orig-title": title, title: ""});
// if the device is a mobile open the hover card by click and not by hover
if (typeof is_mobile != "undefined") {
targetElement[0].removeAttribute("href");
var hctrigger = 'click';
} else {
var hctrigger = 'manual';
}
// Timeout until the hover-card does appear
setTimeout(function () {
if (
targetElement.is(":hover")
&& parseInt(targetElement.attr('data-awaiting-hover-card'), 10) === timeNow
&& $('.hovercard').length === 0
) { // no card if there already is one open
// get an additional data atribute if the card is active
targetElement.attr('data-hover-card-active', timeNow);
// get the whole html content of the hover card and
// push it to the bootstrap popover
getHoverCardContent(contact_url, function (data) {
if (data) {
targetElement.popover({
html: true,
placement: function () {
// Calculate the placement of the the hovercard (if top or bottom)
// The placement depence on the distance between window top and the element
// which triggers the hover-card
var get_position = $(targetElement).offset().top - $(window).scrollTop();
if (get_position < 270) {
return "bottom";
}
return "top";
},
trigger: hctrigger,
template: '<div class="popover hovercard" data-card-created="' + timeNow + '"><div class="arrow"></div><div class="popover-content hovercard-content"></div></div>',
content: data,
container: "body",
sanitizeFn: function (content) {
return DOMPurify.sanitize(content)
},
}).popover('show');
}
});
}
}, 500);
}).on("mouseleave", ".userinfo, .wall-item-responses a, .wall-item-bottom .mention a", function (e) { // action when mouse leaves the hover-card
var timeNow = new Date().getTime();
// copy the original title to the title atribute
var title = $(this).attr("data-orig-title");
$(this).attr({"data-orig-title": "", title: title});
removeAllHovercards(e, timeNow);
});
// hover cards should be removed very easily, e.g. when any of these events happen
$('body').on("mouseleave touchstart scroll click dblclick mousedown mouseup submit keydown keypress keyup", function (e) {
// remove hover card only for desktiop user, since on mobile we openen the hovercards
// by click event insteadof hover
if (typeof is_mobile == "undefined") {
var timeNow = new Date().getTime();
removeAllHovercards(e, timeNow);
}
});
// if we're hovering a hover card, give it a class, so we don't remove it
$('body').on('mouseover', '.hovercard', function (e) {
$(this).addClass('dont-remove-card');
});
$('body').on('mouseleave', '.hovercard', function (e) {
$(this).removeClass('dont-remove-card');
$(this).popover("hide");
});
}); // End of $(document).ready
// removes all hover cards
function removeAllHovercards(event, priorTo) {
// don't remove hovercards until after 100ms, so user have time to move the cursor to it (which gives it the dont-remove-card class)
setTimeout(function () {
$.each($('.hovercard'), function () {
var title = $(this).attr("data-orig-title");
// don't remove card if it was created after removeAllhoverCards() was called
if ($(this).data('card-created') < priorTo) {
// don't remove it if we're hovering it right now!
if (!$(this).hasClass('dont-remove-card')) {
$('[data-hover-card-active="' + $(this).data('card-created') + '"]').removeAttr('data-hover-card-active');
$(this).popover("hide");
}
}
});
}, 100);
}
getHoverCardContent.cache = {};
function getHoverCardContent(contact_url, callback) {
let postdata = {
url: contact_url,
};
// Normalize and clean the profile so we can use a standardized url
// as key for the cache
let nurl = cleanContactUrl(contact_url).normalizeLink();
// If the contact is already in the cache use the cached result instead
// of doing a new ajax request
if (nurl in getHoverCardContent.cache) {
callback(getHoverCardContent.cache[nurl]);
return;
}
$.ajax({
url: baseurl + "/contact/hovercard",
data: postdata,
success: function (data, textStatus, request) {
getHoverCardContent.cache[nurl] = data;
callback(data);
},
});
}