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/**
* Copyright (c) 2013 Christopher Schäpers <christopher@schaepers.it>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
/**
* This plugin inserts the right avatar for the user, depending on, whether a
* custom avatar is uploaded - which it uses then - or not, and display a
* placeholder with the first letter of the users name instead.
* For this it queries the core_avatar_get route, thus this plugin is fit very
* tightly for owncloud, and it may not work anywhere else.
*
* You may use this on any <div></div>
* Here I'm using <div class="avatardiv"></div> as an example.
*
* There are 5 ways to call this:
*
* 1. $('.avatardiv').avatar('jdoe', 128);
* This will make the div to jdoe's fitting avatar, with a size of 128px.
*
* 2. $('.avatardiv').avatar('jdoe');
* This will make the div to jdoe's fitting avatar. If the div already has a
* height, it will be used for the avatars size. Otherwise this plugin will
* search for 'size' DOM data, to use for avatar size. If neither are available
* it will default to 64px.
*
* 3. $('.avatardiv').avatar();
* This will search the DOM for 'user' data, to use as the username. If there
* is no username available it will default to a placeholder with the value of
* "?". The size will be determined the same way, as the second example.
*
* 4. $('.avatardiv').avatar('jdoe', 128, true);
* This will behave like the first example, except it will also append random
* hashes to the custom avatar images, to force image reloading in IE8.
*
* 5. $('.avatardiv').avatar('jdoe', 128, undefined, true);
* This will behave like the first example, but it will hide the avatardiv, if
* it will display the default placeholder. undefined is the ie8fix from
* example 4 and can be either true, or false/undefined, to be ignored.
*
* 6. $('.avatardiv').avatar('jdoe', 128, undefined, true, callback);
* This will behave like the above example, but it will call the function
* defined in callback after the avatar is placed into the DOM.
*
*/
(function ($) {
$.fn.avatar = function(user, size, ie8fix, hidedefault, callback, displayname) {
var setAvatarForUnknownUser = function(target) {
target.imageplaceholder('?');
target.css('background-color', '#b9b9b9');
};
if (typeof(user) !== 'undefined') {
user = String(user);
}
if (typeof(displayname) !== 'undefined') {
displayname = String(displayname);
}
if (typeof(size) === 'undefined') {
if (this.height() > 0) {
size = this.height();
} else if (this.data('size') > 0) {
size = this.data('size');
} else {
size = 64;
}
}
this.height(size);
this.width(size);
if (typeof(user) === 'undefined') {
if (typeof(this.data('user')) !== 'undefined') {
user = this.data('user');
} else {
setAvatarForUnknownUser(this);
return;
}
}
// sanitize
user = String(user).replace(/\//g,'');
var $div = this;
var url;
// If this is our own avatar we have to use the version attribute
if (user === OC.getCurrentUser().uid) {
url = OC.generateUrl(
'/avatar/{user}/{size}?v={version}',
{
user: user,
size: Math.ceil(size * window.devicePixelRatio),
version: oc_userconfig.avatar.version
});
} else {
url = OC.generateUrl(
'/avatar/{user}/{size}',
{
user: user,
size: Math.ceil(size * window.devicePixelRatio)
});
}
// If the displayname is not defined we use the old code path
if (typeof(displayname) === 'undefined') {
$.get(url).always(function(result, status) {
// if there is an error or an object returned (contains user information):
// -> show the fallback placeholder
if (typeof(result) === 'object' || status === 'error') {
if (!hidedefault) {
if (result.data && result.data.displayname) {
$div.imageplaceholder(user, result.data.displayname);
} else {
// User does not exist
setAvatarForUnknownUser($div);
}
} else {
$div.hide();
}
// else an image is transferred and should be shown
} else {
$div.show();
if (ie8fix === true) {
$div.html('<img width="' + size + '" height="' + size + '" src="'+url+'#'+Math.floor(Math.random()*1000)+'" alt="">');
} else {
$div.html('<img width="' + size + '" height="' + size + '" src="'+url+'" alt="">');
}
}
if(typeof callback === 'function') {
callback();
}
});
} else {
// We already have the displayname so set the placeholder (to show at least something)
if (!hidedefault) {
$div.imageplaceholder(displayname);
}
var img = new Image();
// If the new image loads successfully set it.
img.onload = function() {
$div.show();
$div.text('');
$div.append(img);
$div.clearimageplaceholder();
};
img.width = size;
img.height = size;
img.src = url;
}
};
}(jQuery));
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