ShareNotice plugin -- basic buttons per-notice to share the text & a link to the notice on other sites.

Default settings list Twitter, Facebook, and Identi.ca as targets.

Using icons built-in, and no magic offsite JS or anything so it won't slow down or break if third-party site goes down.
Default styles are a little limited, but can be customized in theme should one be so inclined.
This commit is contained in:
Brion Vibber 2010-09-30 18:02:02 -07:00
parent 6e58a926e3
commit d8df140ebb
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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @package ShareNoticePlugin
* @maintainer Brion Vibber <brion@status.net>
*/
if (!defined('STATUSNET')) { exit(1); }
class ShareNoticePlugin extends Plugin
{
public $targets = array(
array('Twitter'),
array('Facebook'),
array('StatusNet', array('baseurl' => 'http://identi.ca'))
);
function onEndShowStatusNetStyles($action) {
$action->cssLink('plugins/ShareNotice/css/sharenotice.css');
return true;
}
function onStartShowNoticeItem($item)
{
$notice = $item->notice;
$out = $item->out;
$out->elementStart('ul', array('class' => 'notice-share'));
foreach ($this->targets as $data) {
$type = $data[0];
$args = (count($data) > 1) ? $data[1] : array();
$target = $this->getShareTarget($type, $notice, $args);
$this->showShareTarget($out, $target);
}
$out->elementEnd('ul');
}
private function getShareTarget($type, $notice, $args)
{
$class = ucfirst($type) . 'ShareTarget';
return new $class($notice, $args);
}
private function showShareTarget(HTMLOutputter $out, NoticeShareTarget $target)
{
$class = $target->getClass();
$text = $target->getText();
$url = $target->targetUrl();
$out->elementStart('li', array('class' => 'notice-share-' . $class));
$out->elementStart('a', array(
'href' => $url,
'title' => $text,
'target' => '_blank'
));
$out->element('span', array(), $text);
$out->elementEnd('a');
$out->elementEnd('li');
}
}
abstract class NoticeShareTarget
{
protected $notice;
public function __construct($notice)
{
$this->notice = $notice;
}
public abstract function getClass();
public abstract function getText();
public abstract function targetUrl();
}
abstract class GenericNoticeShareTarget extends NoticeShareTarget
{
protected function maxLength()
{
return 140; // typical
}
protected function statusText()
{
$pattern = _m('"%s"');
$url = $this->notice->bestUrl();
$suffix = ' ' . $url;
$room = $this->maxLength() - mb_strlen($suffix) - (mb_strlen($pattern) - mb_strlen('%s'));
$content = $this->notice->content;
if (mb_strlen($content) > $room) {
$content = mb_substr($content, 0, $room - 1) . '…';
}
return sprintf($pattern, $content) . $suffix;
}
}
class TwitterShareTarget extends GenericNoticeShareTarget
{
public function getClass()
{
return 'twitter';
}
public function getText()
{
return _m('Share on Twitter');
}
public function targetUrl()
{
$args = array(
'status' => $this->statusText()
);
return 'http://twitter.com/home?' .
http_build_query($args, null, '&');
}
}
class StatusNetShareTarget extends GenericNoticeShareTarget
{
protected $baseurl;
public function __construct($notice, $args)
{
parent::__construct($notice);
$this->baseurl = $args['baseurl'];
}
public function getClass()
{
return 'statusnet';
}
public function getText()
{
$host = parse_url($this->baseurl, PHP_URL_HOST);
return sprintf(_m('Share on %s'), $host);
}
public function targetUrl()
{
$args = array(
'status_textarea' => $this->statusText()
);
return $this->baseurl . '/notice/new?' .
http_build_query($args, null, '&');
}
}
class FacebookShareTarget extends NoticeShareTarget
{
public function getClass()
{
return 'facebook';
}
public function getText()
{
return _m('Share on Facebook');
}
public function targetUrl()
{
$args = array(
'u' => $this->notice->bestUrl(),
't' => sprintf(_m('"%s"'), $this->notice->content),
);
return 'http://www.facebook.com/sharer.php?' .
http_build_query($args, null, '&');
}
}

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icon-sharing.png is from http://www.openshareicons.com/
Shareaholic has made the Open Share Icon freely available for use by others under the
Creative Commons Attribution-Share Alike 3.0 Unported License.
icon-twitter.png is from http://twitter.com/favicon.ico and distributed under fair use
icon-facebook.png is from http://facebook.com/favicon.ico and distributed under fair use
icon-statusnet.png is from http://status.net/favicon.ico and distributed under fair use

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.notice-share {
width: 24px;
float: right;
}
.notice-share li a {
display: block;
width: 16px;
height: 16px;
background: url(icon-share.png) no-repeat;
}
.notice-share li.notice-share-twitter a {
background-image: url(icon-twitter.png);
}
.notice-share li.notice-share-facebook a {
background-image: url(icon-facebook.png);
}
.notice-share li.notice-share-statusnet a {
background-image: url(icon-statusnet.png);
}
.notice-share li a span {
display: none;
}