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<?php
Prado::using('Application.layouts.Layout');
class ClientScriptManager extends TClientScriptManager {
private $_page;
public function __construct(TPage $page) {
$this->_page = $page;
parent::__construct($page);
}
private function _getBasePath() {
return Prado::getPathOfNamespace('Web') . DIRECTORY_SEPARATOR;
}
private function _getBasePaths($urls) {
$basePath = $this->_getBasePath();
return array_map(
function($path) use($basePath) {
return $basePath . DIRECTORY_SEPARATOR . $path;
},
$urls
);
}
private function _getCachePath($subdir = 'assets') {
$cachePath = $this->Application->RuntimePath
. DIRECTORY_SEPARATOR
. $subdir;
if (!is_dir($cachePath)) {
if (file_exists($cachePath)) {
throw new TIOException(
'Client script manager cache path "'
. $cachePath
. ' "exists and is not a directory'
);
} else {
mkdir($cachePath);
}
}
return $cachePath;
}
private function _getCacheFilePath($path, $type) {
return $this->_getCachePath($type)
. DIRECTORY_SEPARATOR
. $path;
}
private function _getFileCollectionCacheKey($files) {
sort($files);
return md5(implode(PHP_EOL, $files));
}
private function _getFileCollectionMTime($files) {
return max(array_map('filemtime', $files));
}
private $_renderedScriptsInitialized = FALSE;
private function _getRenderedScriptsStoreKey() {
$template = $this->_page->Master;
if (!$template instanceof Layout) {
throw new TNotSupportedException(
'Compiled assets may only be used within Layout master class controls'
);
}
return 'RenderedScripts.' . $template->generateViewID();
}
private function _getCache() {
$cache = $this->Application->Cache;
if (!$cache) {
throw new TNotSupportedException(
'Compiled assets require cache to be configured'
);
}
return $cache;
}
private function _getRenderedScripts() {
$sessionKey = $this->_getRenderedScriptsStoreKey();
if ($this->_page->IsCallBack || $this->_renderedScriptsInitialized) {
return $this->_getCache()->get($sessionKey) ?: [];
} else {
$this->_getCache()->delete($sessionKey);
$this->_renderedScriptsInitialized = TRUE;
return [];
}
}
private function _appendRenderedScripts(array $newScripts, $compiledFileKey) {
$scripts = $this->_getRenderedScripts();
if (!isset($scripts[$compiledFileKey])) {
$scripts[$compiledFileKey] = [];
}
$scripts[$compiledFileKey] = array_unique(
array_merge(
$scripts[$compiledFileKey],
$newScripts
)
);
$this->_getCache()->set(
$this->_getRenderedScriptsStoreKey(),
$scripts
);
}
private function _compileFiles($files) {
foreach ($files as $file) {
$this->markScriptFileAsRendered($file);
}
$paths = $this->_getBasePaths($files);
$cacheKey = $this->_getFileCollectionCacheKey($paths);
$cacheFile = $this->_getCacheFilePath($cacheKey . '.js', 'scripts');
$this->_appendRenderedScripts($files, $cacheFile);
if (!file_exists($cacheFile)
|| (filemtime($cacheFile)
< $this->_getFileCollectionMTime($paths))) {
$scriptContent = implode(
PHP_EOL,
array_map(
function($path) {
return trim(
TJavaScript::JSMin(
file_get_contents($path)
)
);
},
$paths
)
);
file_put_contents($cacheFile, $scriptContent);
}
return $this->Application->AssetManager->publishFilePath($cacheFile);
}
private function _determineLocalScriptFiles($files) {
$basePath = $this->_getBasePath();
return array_filter(
$files,
function($file) use($basePath) {
return file_exists($basePath . DIRECTORY_SEPARATOR . $file);
}
);
}
private function _renderLocalScriptFiles($writer, $localFiles) {
if ($localFiles) {
$assetPath = $this->_compileFiles($localFiles);
$writer->write(TJavascript::renderScriptFile($assetPath));
}
}
private function _renderExternalScriptFiles($writer, $externalFiles) {
if ($externalFiles) {
foreach ($externalFiles as $file) {
$this->markScriptFileAsRendered($file);
$this->_appendRenderedScripts([$file], $file);
}
parent::renderScriptFiles($writer, $externalFiles);
}
}
public function renderScriptFiles($writer, Array $files) {
if ($this->getApplication()->getMode() !== TApplicationMode::Debug) {
if ($files) {
$localFiles = $this->_determineLocalScriptFiles($files);
$this->_renderLocalScriptFiles($writer, $localFiles);
$externalFiles = array_diff($files, $localFiles);
$this->_renderExternalScriptFiles($writer, $externalFiles);
}
} else {
parent::renderScriptFiles($writer, $files);
}
}
private function _getRenderedScriptUrl($registeredScript) {
$renderedScripts = $this->_getRenderedScripts();
foreach ($renderedScripts as $compiledFile => $scripts) {
if (in_array($registeredScript, $scripts)) {
if (file_exists($compiledFile)) {
return $this->Application->AssetManager->getPublishedUrl(
$compiledFile
);
} else {
return $registeredScript;
}
}
}
return FALSE;
}
public function getScriptUrls() {
if ($this->getApplication()->getMode() !== TApplicationMode::Debug) {
$registeredScripts = array_unique(
array_merge(
$this->_scripts, $this->_headScripts
)
);
$scriptUrls = [];
$newScripts = [];
foreach ($registeredScripts as $registeredScript) {
$renderedScriptUrl = $this->_getRenderedScriptUrl(
$registeredScript
);
if ($renderedScriptUrl) {
$scriptUrls[] = $renderedScriptUrl;
} else {
$newScripts[] = $registeredScript;
}
}
$newLocalScripts = $this->_determineLocalScriptFiles($newScripts);
$newRemoteScripts = array_diff($newScripts, $newLocalScripts);
if ($newLocalScripts) {
$scriptUrls[] = $this->_compileFiles($newLocalScripts);
}
$scriptUrls = array_values(
array_unique(array_merge($scriptUrls, $newRemoteScripts))
);
return $scriptUrls;
} else {
return parent::getScriptUrls();
}
}
private $_scripts = [];
private $_headScripts = [];
public function registerScriptFile($key, $file) {
$this->_scripts[$key] = $file;
return parent::registerScriptFile($key, $file);
}
public function registerHeadScriptFile($key, $file) {
$this->_headScripts[$key] = $file;
return parent::registerHeadScriptFile($key, $file);
}
}
?>
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