forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			363 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			363 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * StatusNet, the distributed open-source microblogging tool
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 *
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 * widget for displaying a list of notice attachments
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 *
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 * PHP version 5
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 *
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 * LICENCE: This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 * @category  UI
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 * @package   StatusNet
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 * @author    Evan Prodromou <evan@status.net>
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 * @author    Sarven Capadisli <csarven@status.net>
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 * @copyright 2008 StatusNet, Inc.
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 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link      http://status.net/
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 */
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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    exit(1);
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}
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/**
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 * widget for displaying a list of notice attachments
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 *
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 * There are a number of actions that display a list of notices, in
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 * reverse chronological order. This widget abstracts out most of the
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 * code for UI for notice lists. It's overridden to hide some
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 * data for e.g. the profile page.
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 *
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 * @category UI
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 * @package  StatusNet
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 * @author   Evan Prodromou <evan@status.net>
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 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link     http://status.net/
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 * @see      Notice
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 * @see      NoticeListItem
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 * @see      ProfileNoticeList
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 */
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class AttachmentList extends Widget
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{
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    /** the current stream of notices being displayed. */
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    var $notice = null;
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    /**
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     * constructor
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     *
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     * @param Notice $notice stream of notices from DB_DataObject
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     */
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    function __construct($notice, $out=null)
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    {
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        parent::__construct($out);
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        $this->notice = $notice;
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    }
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    /**
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     * show the list of notices
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     *
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     * "Uses up" the stream by looping through it. So, probably can't
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     * be called twice on the same list.
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     *
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     * @return int count of notices listed.
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     */
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    function show()
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    {
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        $atts = new File;
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        $att = $atts->getAttachments($this->notice->id);
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        if (empty($att)) return 0;
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        $this->out->elementStart('dl', array('id' =>'attachments',
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                                             'class' => 'entry-content'));
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        $this->out->element('dt', null, _('Attachments'));
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        $this->out->elementStart('dd');
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        $this->out->elementStart('ol', array('class' => 'attachments'));
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        foreach ($att as $n=>$attachment) {
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            $item = $this->newListItem($attachment);
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            $item->show();
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        }
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        $this->out->elementEnd('dd');
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        $this->out->elementEnd('ol');
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        $this->out->elementEnd('dl');
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        return count($att);
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    }
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    /**
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     * returns a new list item for the current notice
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     *
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     * Recipe (factory?) method; overridden by sub-classes to give
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     * a different list item class.
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     *
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     * @param Notice $notice the current notice
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     *
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     * @return NoticeListItem a list item for displaying the notice
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     */
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    function newListItem($attachment)
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    {
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        return new AttachmentListItem($attachment, $this->out);
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    }
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}
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/**
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 * widget for displaying a single notice
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 *
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 * This widget has the core smarts for showing a single notice: what to display,
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 * where, and under which circumstances. Its key method is show(); this is a recipe
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 * that calls all the other show*() methods to build up a single notice. The
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 * ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
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 * author info (since that's implicit by the data in the page).
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 *
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 * @category UI
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 * @package  StatusNet
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 * @author   Evan Prodromou <evan@status.net>
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 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link     http://status.net/
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 * @see      NoticeList
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 * @see      ProfileNoticeListItem
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 */
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class AttachmentListItem extends Widget
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{
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    /** The attachment this item will show. */
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    var $attachment = null;
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    var $oembed = null;
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    /**
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     * constructor
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     *
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     * Also initializes the profile attribute.
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     *
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     * @param Notice $notice The notice we'll display
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     */
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    function __construct($attachment, $out=null)
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    {
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        parent::__construct($out);
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        $this->attachment  = $attachment;
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        $this->oembed = File_oembed::staticGet('file_id', $this->attachment->id);
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    }
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    function title() {
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        if (empty($this->attachment->title)) {
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            if (empty($this->oembed->title)) {
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                $title = $this->attachment->url;
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            } else {
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                $title = $this->oembed->title;
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            }
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        } else {
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            $title = $this->attachment->title;
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        }
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        return $title;
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    }
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    function linkTitle() {
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        return $this->title();
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    }
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    /**
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     * recipe function for displaying a single notice.
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     *
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     * This uses all the other methods to correctly display a notice. Override
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     * it or one of the others to fine-tune the output.
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     *
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     * @return void
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     */
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    function show()
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    {
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        $this->showStart();
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        $this->showNoticeAttachment();
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        $this->showEnd();
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    }
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    function linkAttr() {
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        return array('class' => 'attachment', 'href' => $this->attachment->url, 'id' => 'attachment-' . $this->attachment->id);
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    }
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    function showLink() {
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        $this->out->elementStart('a', $this->linkAttr());
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        $this->out->element('span', null, $this->linkTitle());
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        $this->showRepresentation();
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        $this->out->elementEnd('a');
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    }
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    function showNoticeAttachment()
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    {
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        $this->showLink();
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    }
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    function showRepresentation() {
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        $thumbnail = File_thumbnail::staticGet('file_id', $this->attachment->id);
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        if (!empty($thumbnail)) {
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            $this->out->element('img', array('alt' => '', 'src' => $thumbnail->url, 'width' => $thumbnail->width, 'height' => $thumbnail->height));
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        }
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    }
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    /**
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     * start a single notice.
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     *
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     * @return void
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     */
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    function showStart()
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    {
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        // XXX: RDFa
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        // TODO: add notice_type class e.g., notice_video, notice_image
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        $this->out->elementStart('li');
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    }
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    /**
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     * finish the notice
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     *
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     * Close the last elements in the notice list item
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     *
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     * @return void
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     */
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    function showEnd()
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    {
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        $this->out->elementEnd('li');
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    }
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}
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class Attachment extends AttachmentListItem
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{
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    function showLink() {
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        $this->out->elementStart('div', array('id' => 'attachment_view',
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                                              'class' => 'hentry'));
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        $this->out->elementStart('div', 'entry-title');
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        $this->out->elementStart('a', $this->linkAttr());
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        $this->out->element('span', null, $this->linkTitle());
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        $this->out->elementEnd('a');
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        $this->out->elementEnd('div');
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        $this->out->elementStart('div', 'entry-content');
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        $this->showRepresentation();
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        $this->out->elementEnd('div');
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        if (!empty($this->oembed->author_name) || !empty($this->oembed->provider)) {
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            $this->out->elementStart('div', array('id' => 'oembed_info', 
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                                                  'class' => 'entry-content'));
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            if (!empty($this->oembed->author_name)) {
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                $this->out->elementStart('dl', 'vcard author');
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                $this->out->element('dt', null, _('Author'));
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                $this->out->elementStart('dd', 'fn');
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                if (empty($this->oembed->author_url)) {
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                    $this->out->text($this->oembed->author_name);
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                } else {
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                    $this->out->element('a', array('href' => $this->oembed->author_url,
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                                                   'class' => 'url'), $this->oembed->author_name);
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                }
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                $this->out->elementEnd('dd');
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                $this->out->elementEnd('dl');
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            }
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            if (!empty($this->oembed->provider)) {
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                $this->out->elementStart('dl', 'vcard');
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                $this->out->element('dt', null, _('Provider'));
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                $this->out->elementStart('dd', 'fn');
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                if (empty($this->oembed->provider_url)) {
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                    $this->out->text($this->oembed->provider);
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                } else {
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                    $this->out->element('a', array('href' => $this->oembed->provider_url,
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                                                   'class' => 'url'), $this->oembed->provider);
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                }
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                $this->out->elementEnd('dd');
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                $this->out->elementEnd('dl');
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            }
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            $this->out->elementEnd('div');
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        }
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        $this->out->elementEnd('div');
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    }
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    function show() {
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        $this->showNoticeAttachment();
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    }
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    function linkAttr() {
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        return array('class' => 'external', 'href' => $this->attachment->url);
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    }
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    function linkTitle() {
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        return $this->attachment->url;
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    }
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    function showRepresentation() {
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        if (empty($this->oembed->type)) {
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            if (empty($this->attachment->mimetype)) {
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                $this->out->element('pre', null, 'oh well... not sure how to handle the following: ' . print_r($this->attachment, true));
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            } else {
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                switch ($this->attachment->mimetype) {
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                case 'image/gif':
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                case 'image/png':
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                case 'image/jpg':
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                case 'image/jpeg':
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                    $this->out->element('img', array('src' => $this->attachment->url, 'alt' => 'alt'));
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                    break;
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                case 'application/ogg':
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                case 'audio/x-speex':
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                case 'video/mpeg':
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                case 'audio/mpeg':
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                case 'video/mp4':
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                case 'video/quicktime':
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                    $arr  = array('type' => $this->attachment->mimetype,
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                        'data' => $this->attachment->url,
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                        'width' => 320,
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                        'height' => 240
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                    );
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                    $this->out->elementStart('object', $arr);
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                    $this->out->element('param', array('name' => 'src', 'value' => $this->attachment->url));
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                    $this->out->element('param', array('name' => 'autoStart', 'value' => 1));
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                    $this->out->elementEnd('object');
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                    break;
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                }
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            }
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        } else {
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            switch ($this->oembed->type) {
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            case 'rich':
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            case 'video':
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            case 'link':
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                if (!empty($this->oembed->html)) {
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                    require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
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                    $config = array(
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                        'safe'=>1,
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                        'elements'=>'*+object+embed');
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                    $this->out->raw(htmLawed($this->oembed->html,$config));
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                    //$this->out->raw($this->oembed->html);
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                }
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                break;
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            case 'photo':
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                $this->out->element('img', array('src' => $this->oembed->url, 'width' => $this->oembed->width, 'height' => $this->oembed->height, 'alt' => 'alt'));
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                break;
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            default:
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                $this->out->element('pre', null, 'oh well... not sure how to handle the following oembed: ' . print_r($this->oembed, true));
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            }
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        }
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    }
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}
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