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

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JavaScript
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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) {
var timeNow = new Date().getTime();
removeAllhoverCards(e,timeNow);
var hoverCardData = false;
var hrefAttr = false;
var targetElement = $(this);
// get href-attribute
if(targetElement.is('[href]')) {
hrefAttr = targetElement.attr('href');
} else {
return true;
}
// no hover card if the element has the no-hover-card class
if(targetElement.hasClass('no-hover-card')) {
return true;
}
// no hovercard for anchor links
if(hrefAttr.substring(0,1) == '#') {
return true;
}
targetElement.attr('data-awaiting-hover-card',timeNow);
// Take link href attribute as link to the profile
var profileurl = hrefAttr;
// the url to get the contact and template data
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var url = baseurl + "/hovercard";
// store the title in an other data attribute beause bootstrap
// popover destroys the title.attribute. We can restore it later
var title = targetElement.attr("title");
targetElement.attr({"data-orig-title": title, title: ""});
// if the device is a mobile open the hover card by click and not by hover
if(typeof is_mobile != "undefined") {
targetElement[0].removeAttribute("href");
var hctrigger = 'click';
} else {
var hctrigger = 'manual';
};
// Timeoute until the hover-card does appear
setTimeout(function(){
if(targetElement.is(":hover") && parseInt(targetElement.attr('data-awaiting-hover-card'),10) == timeNow) {
if($('.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(profileurl, 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>',
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content: data,
container: "body",
}).popover('show');
}
});
}
}
}, 500);
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}).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);
}
// Ajax request to get json contact data
function getContactData(purl, url, actionOnSuccess) {
var postdata = {
mode : 'none',
profileurl : purl,
datatype : 'json',
};
// Normalize and clean the profile so we can use a standardized url
// as key for the cache
var nurl = cleanContactUrl(purl).normalizeLink();
// If the contact is allready in the cache use the cached result instead
// of doing a new ajax request
if(nurl in getContactData.cache) {
setTimeout(function() { actionOnSuccess(getContactData.cache[nurl]); } , 1);
return;
}
$.ajax({
url: url,
data: postdata,
dataType: "json",
success: function(data, textStatus, request){
// Check if the nurl (normalized profile url) is present and store it to the cache
// The nurl will be the identifier in the object
if(data.nurl.length > 0) {
// Test if the contact is allready connected with the user (if url containing
// the expression ("redir/") We will store different cache keys
if((data.url.search("redir/")) >= 0 ) {
var key = data.url;
} else {
var key = data.nurl;
}
getContactData.cache[key] = data;
}
actionOnSuccess(data, url, request);
},
error: function(data) {
actionOnSuccess(false, data, url);
}
});
}
getContactData.cache = {};
// Get hover-card template data and the contact-data and transform it with
// the help of jSmart. At the end we have full html content of the hovercard
function getHoverCardContent(purl, url, callback) {
// fetch the raw content of the template
getHoverCardTemplate(url, function(stpl) {
var template = unescape(stpl);
// get the contact data
getContactData (purl, url, function(data) {
if(typeof template != 'undefined') {
// get the hover-card variables
var variables = getHoverCardVariables(data);
var tpl;
// use friendicas template delimiters instead of
// the original one
jSmart.prototype.left_delimiter = '{{';
jSmart.prototype.right_delimiter = '}}';
// create a new jSmart instant with the raw content
// of the template
var tpl = new jSmart (template);
// insert the variables content into the template content
var HoverCardContent = tpl.fetch(variables);
callback(HoverCardContent);
}
});
});
// This is interisting. this pice of code ajax request are done asynchron.
// To make it work getHOverCardTemplate() and getHOverCardData have to return it's
// data (no succes handler for each of this). I leave it here, because it could be useful.
// https://lostechies.com/joshuaflanagan/2011/10/20/coordinating-multiple-ajax-requests-with-jquery-when/
// $.when(
// getHoverCardTemplate(url),
// getContactData (term, url )
//
// ).done(function(template, profile){
// if(typeof template != 'undefined') {
// var variables = getHoverCardVariables(profile);
//
// jSmart.prototype.left_delimiter = '{{';
// jSmart.prototype.right_delimiter = '}}';
// var tpl = new jSmart (template);
// var html = tpl.fetch(variables);
//
// return html;
// }
// });
}
// Ajax request to get the raw template content
function getHoverCardTemplate (url, callback) {
var postdata = {
mode: 'none',
datatype: 'tpl'
};
// Look if we have the template already in the cace, so we don't have
// request it again
if('hovercard' in getHoverCardTemplate.cache) {
setTimeout(function() { callback(getHoverCardTemplate.cache['hovercard']); } , 1);
return;
}
$.ajax({
url: url,
data: postdata,
success: function(data, textStatus) {
// write the data in the cache
getHoverCardTemplate.cache['hovercard'] = data;
callback(data);
}
}).fail(function () {callback([]); });
}
getHoverCardTemplate.cache = {};
// The Variables used for the template
function getHoverCardVariables(object) {
var profile = {
name: object.name,
nick: object.nick,
addr: object.addr,
thumb: object.thumb,
url: object.url,
nurl: object.nurl,
location: object.location,
gender: object.gender,
about: object.about,
network: object.network,
tags: object.tags,
bd: object.bd,
account_type: object.account_type,
actions: object.actions
};
var variables = { profile: profile};
return variables;
}