TTextWriter implements a memory-based text writer.
Content written by TTextWriter are stored in memory
and can be obtained by calling {@link flush()}.
/**
* Returns the text content wrapped within a HTML comment with boundary
* identifier as its comment content.
* @return string text content chunck.
*/
public function flush()
{
$content = parent::flush();
if (empty($content)) {
return "";
}
return '<!--' . $this->getBoundary() . '-->' . $content . '<!--//' . $this->getBoundary() . '-->';
}
/**
* Renders the output cache control.
* This method overrides the parent implementation by capturing the output
* from its child controls and saving it into cache, if output cache is needed.
* @param THtmlWriter
*/
public function render($writer)
{
if ($this->_dataCached) {
$writer->write($this->_contents);
} else {
if ($this->_cacheAvailable) {
$textwriter = new TTextWriter();
$multiwriter = new TOutputCacheTextWriterMulti(array($writer->getWriter(), $textwriter));
$htmlWriter = Prado::createComponent($this->GetResponse()->getHtmlWriterType(), $multiwriter);
$stack = $this->getPage()->getCachingStack();
$stack->push($this);
parent::render($htmlWriter);
$stack->pop();
$content = $textwriter->flush();
$data = array($content, $this->_state, $this->_actions, time());
$this->_cache->set($this->getCacheKey(), $data, $this->getDuration(), $this->getCacheDependency());
} else {
parent::render($writer);
}
}
}
public function testRenderWithDocumentPathAndTransformPath()
{
$expected = "<b>Hello World!</b>\n";
$transform = new TXmlTransform();
$transform->setDocumentPath($this->documentPath);
$transform->setTransformPath($this->transformPath);
$textWriter = new TTextWriter();
$htmlWriter = new THtmlWriter($textWriter);
$transform->render($htmlWriter);
$actual = $textWriter->flush();
self::assertEquals($expected, $actual);
}
public function testWriteLine()
{
$writer = new TTextWriter();
$writer->writeLine('some text');
self::assertEquals("some text\n", $writer->flush());
}