function __toString()
{
// Skip empty text frames
// if ( $this->is_text_node() &&
// preg_replace("/\s/", "", $this->_node->data) === "" )
// return "";
$str = "<b>" . $this->_node->nodeName . ":</b><br/>";
//$str .= spl_object_hash($this->_node) . "<br/>";
$str .= "Id: " . $this->get_id() . "<br/>";
$str .= "Class: " . get_class($this) . "<br/>";
if ($this->is_text_node()) {
$tmp = htmlspecialchars($this->_node->nodeValue);
$str .= "<pre>'" . mb_substr($tmp, 0, 70) . (mb_strlen($tmp) > 70 ? "..." : "") . "'</pre>";
} elseif ($css_class = $this->_node->getAttribute("class")) {
$str .= "CSS class: '{$css_class}'<br/>";
}
if ($this->_parent) {
$str .= "\nParent:" . $this->_parent->_node->nodeName . " (" . spl_object_hash($this->_parent->_node) . ") " . "<br/>";
}
if ($this->_prev_sibling) {
$str .= "Prev: " . $this->_prev_sibling->_node->nodeName . " (" . spl_object_hash($this->_prev_sibling->_node) . ") " . "<br/>";
}
if ($this->_next_sibling) {
$str .= "Next: " . $this->_next_sibling->_node->nodeName . " (" . spl_object_hash($this->_next_sibling->_node) . ") " . "<br/>";
}
$d = $this->get_decorator();
while ($d && $d != $d->get_decorator()) {
$str .= "Decorator: " . get_class($d) . "<br/>";
$d = $d->get_decorator();
}
$str .= "Position: " . pre_r($this->_position, true);
$str .= "\nContaining block: " . pre_r($this->_containing_block, true);
$str .= "\nMargin width: " . pre_r($this->get_margin_width(), true);
$str .= "\nMargin height: " . pre_r($this->get_margin_height(), true);
$str .= "\nStyle: <pre>" . $this->_style->__toString() . "</pre>";
if ($this->_decorator instanceof Block_Frame_Decorator) {
$str .= "Lines:<pre>";
foreach ($this->_decorator->get_line_boxes() as $line) {
foreach ($line->get_frames() as $frame) {
if ($frame instanceof Text_Frame_Decorator) {
$str .= "\ntext: ";
$str .= "'" . htmlspecialchars($frame->get_text()) . "'";
} else {
$str .= "\nBlock: " . $frame->get_node()->nodeName . " (" . spl_object_hash($frame->get_node()) . ")";
}
}
$str .= "\ny => " . $line->y . "\n" . "w => " . $line->w . "\n" . "h => " . $line->h . "\n" . "left => " . $line->left . "\n" . "right => " . $line->right . "\n";
}
$str .= "</pre>";
}
$str .= "\n";
if (php_sapi_name() === "cli") {
$str = strip_tags(str_replace(array("<br/>", "<b>", "</b>"), array("\n", "", ""), $str));
}
return $str;
}
/**
* This method attempts to return a better 'innerText' representation than DOMNode::textContent
*
* @param DOMElement|DOMText $el
* @param bool $implied when parsing for implied name for h-*, rules may be slightly different
* @see: https://github.com/glennjones/microformat-shiv/blob/dev/lib/text.js
*/
public function innerText($el, $implied = false)
{
$out = '';
$blockLevelTags = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'p', 'hr', 'pre', 'table', 'address', 'article', 'aside', 'blockquote', 'caption', 'col', 'colgroup', 'dd', 'div', 'dt', 'dir', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'header', 'hgroup', 'hr', 'li', 'map', 'menu', 'nav', 'optgroup', 'option', 'section', 'tbody', 'testarea', 'tfoot', 'th', 'thead', 'tr', 'td', 'ul', 'ol', 'dl', 'details');
$excludeTags = array('noframe', 'noscript', 'script', 'style', 'frames', 'frameset');
// PHP DOMDocument doesn’t correctly handle whitespace around elements it doesn’t recognise.
$unsupportedTags = array('data');
if (isset($el->tagName)) {
if (in_array(strtolower($el->tagName), $excludeTags)) {
return $out;
} else {
if ($el->tagName == 'img') {
if ($el->getAttribute('alt') !== '') {
return $el->getAttribute('alt');
} else {
if (!$implied && $el->getAttribute('src') !== '') {
return $this->resolveUrl($el->getAttribute('src'));
}
}
} else {
if ($el->tagName == 'area' and $el->getAttribute('alt') !== '') {
return $el->getAttribute('alt');
} else {
if ($el->tagName == 'abbr' and $el->getAttribute('title') !== '') {
return $el->getAttribute('title');
}
}
}
}
}
// if node is a text node get its text
if (isset($el->nodeType) && $el->nodeType === 3) {
$out .= $el->textContent;
}
// get the text of the child nodes
if ($el->childNodes && $el->childNodes->length > 0) {
for ($j = 0; $j < $el->childNodes->length; $j++) {
$text = $this->innerText($el->childNodes->item($j), $implied);
if (!is_null($text)) {
$out .= $text;
}
}
}
if (isset($el->tagName)) {
// if its a block level tag add an additional space at the end
if (in_array(strtolower($el->tagName), $blockLevelTags)) {
$out .= ' ';
} elseif ($implied and in_array(strtolower($el->tagName), $unsupportedTags)) {
$out .= ' ';
} else {
if (strtolower($el->tagName) == 'br') {
// else if its a br, replace with newline
$out .= "\n";
}
}
}
return $out === '' ? NULL : $out;
}
