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controller.php
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controller.php
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<?php
namespace Concrete\Block\CoreStackDisplay;
use Stack;
use Permissions;
use Page;
use Concrete\Core\Block\BlockController;
/**
* The controller for the stack display block. This is an internal proxy block that is inserted when a stack's contents are displayed in a page.
*
* @package Blocks
* @subpackage Core Stack Display
*
* @author Andrew Embler <andrew@concrete5.org>
* @copyright Copyright (c) 2003-2012 Concrete5. (http://www.concrete5.org)
* @license http://www.concrete5.org/license/ MIT License
*/
class Controller extends BlockController
{
protected $btCacheBlockRecord = true;
protected $btTable = 'btCoreStackDisplay';
protected $btIsInternal = true;
protected $btCacheSettingsInitialized = false;
public function getBlockTypeDescription()
{
return t("Proxy block for stacks added through the UI.");
}
public function getBlockTypeName()
{
return t("Stack Display");
}
public function getOriginalBlockID()
{
return $this->bOriginalID;
}
public function getSearchableContent()
{
$searchableContent = '';
$stack = Stack::getByID($this->stID);
if (is_object($stack)) {
$blocks = $stack->getBlocks();
if (!empty($blocks)) {
foreach ($blocks as $block) {
if (method_exists($block->instance, 'getSearchableContent')) {
$searchableContent .= $block->instance->getSearchableContent();
}
}
}
}
return $searchableContent;
}
public function getImportData($blockNode, $page)
{
$args = array();
$content = (string) $blockNode->stack;
$stack = Stack::getByName($content);
$args['stID'] = 0;
if (is_object($stack)) {
$args['stID'] = $stack->getCollectionID();
}
return $args;
}
public function isValidControllerTask($method, $parameters = array())
{
$b = $this->findBlockForAction($method, $parameters);
return !empty($b);
}
public function runAction($action, $parameters = array())
{
if ('on_page_view' === $action) {
$this->on_page_view($parameters[0]);
}
$b = $this->findBlockForAction($action, $parameters);
if (empty($b)) {
return;
}
$controller = $b->getController();
return $controller->runAction($action, $parameters);
}
public function findBlockForAction($method, $parameters)
{
$stack = Stack::getByID($this->stID);
if (!is_object($stack)) {
return null;
}
$blocks = $stack->getBlocks();
foreach ($blocks as $b) {
$controller = $b->getController();
if ($controller->isValidControllerTask($method, $parameters)) {
return $b;
}
}
return null;
}
public function export(\SimpleXMLElement $blockNode)
{
$stack = Stack::getByID($this->stID);
if (is_object($stack)) {
$cnode = $blockNode->addChild('stack');
$node = dom_import_simplexml($cnode);
$no = $node->ownerDocument;
$node->appendChild($no->createCDataSection($stack->getCollectionName()));
}
}
public function on_page_view($page)
{
$stack = Stack::getByID($this->stID);
if (!is_object($stack)) {
return false;
}
$p = new Permissions($stack);
if ($p->canViewPage()) {
$blocks = $stack->getBlocks();
foreach ($blocks as $b) {
$bp = new Permissions($b);
if ($bp->canViewBlock()) {
$btc = $b->getInstance();
if ('Controller' != get_class($btc)) {
$btc->outputAutoHeaderItems();
}
$csr = $b->getCustomStyle();
if (is_object($csr)) {
$css = $csr->getCSS();
if ($css !== '') {
$styleHeader = $csr->getStyleWrapper($css);
$btc->addHeaderItem($styleHeader);
}
}
$btc->runTask('on_page_view', array($page));
}
}
}
}
protected function setupCacheSettings()
{
if ($this->btCacheSettingsInitialized || Page::getCurrentPage()->isEditMode()) {
return;
}
$this->btCacheSettingsInitialized = true;
//Block cache settings are only as good as the weakest cached item inside. So loop through and check.
$btCacheBlockOutput = true;
$btCacheBlockOutputOnPost = true;
$btCacheBlockOutputLifetime = 0;
$stack = Stack::getByID($this->stID);
if (!is_object($stack)) {
return false;
}
$p = new Permissions($stack);
if ($p->canViewPage()) {
$blocks = $stack->getBlocks();
foreach ($blocks as $b) {
$btCacheBlockOutput = $btCacheBlockOutput && $b->cacheBlockOutput();
$btCacheBlockOutputOnPost = $btCacheBlockOutputOnPost && $b->cacheBlockOutputOnPost();
//As soon as we find something which cannot be cached, entire block cannot be cached, so stop checking.
if (!$btCacheBlockOutput) {
return;
}
if ($expires = $b->getBlockOutputCacheLifetime()) {
if ($expires && $btCacheBlockOutputLifetime < $expires) {
$btCacheBlockOutputLifetime = $expires;
}
}
}
}
$this->btCacheBlockOutput = $btCacheBlockOutput;
$this->btCacheBlockOutputOnPost = $btCacheBlockOutputOnPost;
$this->btCacheBlockOutputLifetime = $btCacheBlockOutputLifetime;
}
public function cacheBlockOutput()
{
$this->setupCacheSettings();
return $this->btCacheBlockOutput;
}
public function cacheBlockOutputOnPost()
{
$this->setupCacheSettings();
return $this->btCacheBlockOutputOnPost;
}
public function getBlockTypeCacheOutputLifetime()
{
$this->setupCacheSettings();
return $this->btCacheBlockOutputLifetime;
}
}