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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Gdata
* @subpackage Demos
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/**
* @see Zend_Loader
*/
require_once 'Zend/Loader.php';
/**
* @see Zend_Gdata_Books
*/
Zend_Loader::loadClass('Zend_Gdata_Books');
/**
* Return a comma separated string representing the elements of an array
*
* @param Array $elements The array of elements
* @return string Comma separated string
*/
function printArray($elements) {
$result = '';
foreach ($elements as $element) {
if (!empty($result)) $result = $result.', ';
$result = $result.$element;
}
return $result;
}
/**
* Echo the list of videos in the specified feed.
*
* @param Zend_Gdata_Books_BookFeed $feed The video feed
* @return void
*/
function echoBookList($feed)
{
print <<<HTML
<table><tr><td id="resultcell">
<div id="searchResults">
<table class="volumeList"><tbody width="100%">
HTML;
$flipflop = false;
foreach ($feed as $entry) {
$title = printArray($entry->getTitles());
$volumeId = $entry->getVolumeId();
if ($thumbnailLink = $entry->getThumbnailLink()) {
$thumbnail = $thumbnailLink->href;
} else {
$thumbnail = null;
}
$preview = $entry->getPreviewLink()->href;
$embeddability = $entry->getEmbeddability()->getValue();
$creators = printArray($entry->getCreators());
if (!empty($creators)) $creators = "by " . $creators;
if ($embeddability ==
"http://schemas.google.com/books/2008#embeddable") {
$preview_link = '<a href="javascript:load_viewport(\''.
$preview.'\',\'viewport\');">'.
'<img class="previewbutton" src="http://code.google.com/' .
'apis/books/images/gbs_preview_button1.png" />' .
'</a><br>';
} else {
$preview_link = '';
}
$thumbnail_img = (!$thumbnail) ? '' : '<a href="'.$preview.
'"><img src="'.$thumbnail.'"/></a>';
print <<<HTML
<tr>
<td><div class="thumbnail">
$thumbnail_img
</div></td>
<td width="100%">
<a href="${preview}">$title</a><br>
$creators<br>
$preview_link
</td></tr>
HTML;
}
print <<<HTML
</table></div></td>
<td width=50% id="previewcell"><div id="viewport"></div>
</td></tr></table><br></body></html>
HTML;
}
/*
* The main controller logic of the Books volume browser demonstration app.
*/
$queryType = isset($_GET['queryType']) ? $_GET['queryType'] : null;
include 'interface.html';
if ($queryType === null) {
/* display the entire interface */
} else {
$books = new Zend_Gdata_Books();
$query = $books->newVolumeQuery();
/* display a list of volumes */
if (isset($_GET['searchTerm'])) {
$searchTerm = $_GET['searchTerm'];
$query->setQuery($searchTerm);
}
if (isset($_GET['startIndex'])) {
$startIndex = $_GET['startIndex'];
$query->setStartIndex($startIndex);
}
if (isset($_GET['maxResults'])) {
$maxResults = $_GET['maxResults'];
$query->setMaxResults($maxResults);
}
if (isset($_GET['minViewability'])) {
$minViewability = $_GET['minViewability'];
$query->setMinViewability($minViewability);
}
/* check for one of the restricted feeds, or list from 'all' videos */
switch ($queryType) {
case 'full_view':
case 'partial_view':
$query->setMinViewability($queryType);
echo 'Requesting feed: ' . ($query->getQueryUrl()) . '<br><br>';
$feed = $books->getVolumeFeed($query);
break;
case 'all':
echo 'Requesting feed: ' . ($query->getQueryUrl()) . '<br><br>';
$feed = $books->getVolumeFeed($query);
break;
default:
echo 'ERROR - unknown queryType - "' . $queryType . '"';
break;
}
echoBookList($feed);
}
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