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124b42c9f1
Remove tcpdf because of improper CSS support and use Dompdf instead, to be able to generate pdfs that look similar to the html views refs #4356
1114 lines
27 KiB
PHP
1114 lines
27 KiB
PHP
<?php
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/**
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* @package dompdf
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* @link http://www.dompdf.com/
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* @author Benj Carson <benjcarson@digitaljunkies.ca>
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
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* @version $Id: frame.cls.php 450 2012-01-10 22:29:32Z fabien.menager $
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*/
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/**
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* The main Frame class
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*
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* This class represents a single HTML element. This class stores
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* positioning information as well as containing block location and
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* dimensions. Style information for the element is stored in a {@link
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* Style} object. Tree structure is maintained via the parent & children
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* links.
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*
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* @access protected
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* @package dompdf
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*/
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class Frame {
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/**
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* The DOMNode object this frame represents
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*
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* @var DOMNode
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*/
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protected $_node;
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/**
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* Unique identifier for this frame. Used to reference this frame
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* via the node.
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*
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* @var string
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*/
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protected $_id;
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/**
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* Unique id counter
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*/
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static /*protected*/ $ID_COUNTER = 0;
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/**
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* This frame's calculated style
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*
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* @var Style
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*/
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protected $_style;
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/**
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* This frame's original style. Needed for cases where frames are
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* split across pages.
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*
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* @var Style
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*/
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protected $_original_style;
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/**
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* This frame's parent in the document tree.
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*
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* @var Frame
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*/
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protected $_parent;
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/**
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* This frame's children
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*
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* @var array
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*/
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protected $_frame_list;
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/**
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* This frame's first child. All children are handled as a
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* doubly-linked list.
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*
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* @var Frame
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*/
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protected $_first_child;
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/**
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* This frame's last child.
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*
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* @var Frame
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*/
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protected $_last_child;
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/**
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* This frame's previous sibling in the document tree.
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*
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* @var Frame
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*/
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protected $_prev_sibling;
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/**
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* This frame's next sibling in the document tree.
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*
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* @var Frame
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*/
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protected $_next_sibling;
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/**
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* This frame's containing block (used in layout): array(x, y, w, h)
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*
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* @var array
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*/
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protected $_containing_block;
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/**
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* Position on the page of the top-left corner of the margin box of
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* this frame: array(x,y)
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*
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* @var array
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*/
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protected $_position;
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/**
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* Absolute opacity of this frame
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*
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* @var float
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*/
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protected $_opacity;
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/**
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* This frame's decorator
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*
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* @var Frame_Decorator
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*/
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protected $_decorator;
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/**
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* This frame's containing line box
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* @var Line_Box
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*/
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protected $_containing_line;
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protected $_is_cache = array();
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/**
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* Tells wether the frame was already pushed to the next page
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* @var bool
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*/
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public $_already_pushed = false;
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public $_float_next_line = false;
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static $_ws_state = self::WS_SPACE;
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const WS_TEXT = 1;
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const WS_SPACE = 2;
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/**
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* Class destructor
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*/
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function __destruct() {
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clear_object($this);
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}
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/**
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* Class constructor
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*
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* @param DOMNode $node the DOMNode this frame represents
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*/
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function __construct(DOMNode $node) {
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$this->_node = $node;
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$this->_parent = null;
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$this->_first_child = null;
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$this->_last_child = null;
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$this->_prev_sibling = $this->_next_sibling = null;
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$this->_style = null;
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$this->_original_style = null;
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$this->_containing_block = array(
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"x" => null,
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"y" => null,
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"w" => null,
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"h" => null,
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);
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$this->_containing_block[0] =& $this->_containing_block["x"];
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$this->_containing_block[1] =& $this->_containing_block["y"];
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$this->_containing_block[2] =& $this->_containing_block["w"];
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$this->_containing_block[3] =& $this->_containing_block["h"];
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$this->_position = array(
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"x" => null,
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"y" => null,
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);
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$this->_position[0] =& $this->_position["x"];
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$this->_position[1] =& $this->_position["y"];
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$this->_opacity = 1.0;
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$this->_decorator = null;
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$this->set_id( self::$ID_COUNTER++ );
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}
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// WIP : preprocessing to remove all the unused whitespace
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protected function ws_trim(){
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if ( $this->ws_keep() ) return;
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switch(self::$_ws_state) {
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case self::WS_SPACE:
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$node = $this->_node;
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if ( $node->nodeName === "#text" ) {
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$node->data = preg_replace("/[ \t\r\n\f]+/u", " ", $text);
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// starts with a whitespace
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if ( isset($node->data[0]) && $node->data[0] === " " ) {
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$node->data = ltrim($node->data);
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}
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// if not empty
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if ( $node->data !== "" ) {
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// change the current state (text)
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self::$_ws_state = self::WS_TEXT;
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// ends with a whitespace
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if ( preg_match("/[ \t\r\n\f]+$/u", $node->data) ) {
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$node->data = ltrim($node->data);
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}
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}
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}
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break;
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case self::WS_TEXT:
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}
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}
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protected function ws_keep(){
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$whitespace = $this->get_style()->white_space;
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return in_array($whitespace, array("pre", "pre-wrap", "pre-line"));
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}
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protected function ws_is_text(){
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$node = $this->get_node();
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if ($node->nodeName === "img") {
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return true;
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}
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if ( !$this->is_in_flow() ) {
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return false;
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}
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if ($this->is_text_node()) {
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return trim($node->nodeValue) !== "";
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}
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return true;
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}
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/**
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* "Destructor": forcibly free all references held by this frame
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*
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* @param bool $recursive if true, call dispose on all children
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*/
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function dispose($recursive = false) {
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if ( $recursive ) {
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while ( $child = $this->_first_child )
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$child->dispose(true);
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}
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// Remove this frame from the tree
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if ( $this->_prev_sibling ) {
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$this->_prev_sibling->_next_sibling = $this->_next_sibling;
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}
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if ( $this->_next_sibling ) {
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$this->_next_sibling->_prev_sibling = $this->_prev_sibling;
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}
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if ( $this->_parent && $this->_parent->_first_child === $this ) {
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$this->_parent->_first_child = $this->_next_sibling;
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}
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if ( $this->_parent && $this->_parent->_last_child === $this ) {
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$this->_parent->_last_child = $this->_prev_sibling;
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}
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if ( $this->_parent ) {
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$this->_parent->get_node()->removeChild($this->_node);
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}
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$this->_style->dispose();
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$this->_style = null;
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unset($this->_style);
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$this->_original_style->dispose();
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$this->_original_style = null;
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unset($this->_original_style);
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}
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// Re-initialize the frame
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function reset() {
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$this->_position["x"] = null;
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$this->_position["y"] = null;
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$this->_containing_block["x"] = null;
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$this->_containing_block["y"] = null;
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$this->_containing_block["w"] = null;
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$this->_containing_block["h"] = null;
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$this->_style = null;
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unset($this->_style);
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$this->_style = clone $this->_original_style;
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}
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//........................................................................
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// Accessor methods
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/**
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* @return DOMNode
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*/
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function get_node() { return $this->_node; }
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/**
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* @return string
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*/
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function get_id() { return $this->_id; }
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/**
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* @return Style
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*/
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function get_style() { return $this->_style; }
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/**
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* @return Style
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*/
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function get_original_style() { return $this->_original_style; }
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/**
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* @return Frame
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*/
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function get_parent() { return $this->_parent; }
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/**
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* @return Frame_Decorator
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*/
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function get_decorator() { return $this->_decorator; }
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/**
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* @return Frame
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*/
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function get_first_child() { return $this->_first_child; }
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/**
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* @return Frame
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*/
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function get_last_child() { return $this->_last_child; }
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/**
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* @return Frame
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*/
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function get_prev_sibling() { return $this->_prev_sibling; }
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/**
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* @return Frame
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*/
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function get_next_sibling() { return $this->_next_sibling; }
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/**
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* @return FrameList
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*/
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function get_children() {
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if ( isset($this->_frame_list) ) {
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return $this->_frame_list;
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}
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$this->_frame_list = new FrameList($this);
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return $this->_frame_list;
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}
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// Layout property accessors
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/**
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* Containing block dimensions
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*
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* @param $i string The key of the wanted containing block's dimension (x, y, x, h)
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* @return array|float
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*/
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function get_containing_block($i = null) {
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if ( isset($i) ) {
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return $this->_containing_block[$i];
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}
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return $this->_containing_block;
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}
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/**
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* Block position
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*
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* @param $i string The key of the wanted position value (x, y)
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* @return array|float
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*/
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function get_position($i = null) {
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if ( isset($i) ) {
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return $this->_position[$i];
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}
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return $this->_position;
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}
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//........................................................................
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/**
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* Return the height of the margin box of the frame, in pt. Meaningless
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* unless the height has been calculated properly.
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*
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* @return float
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*/
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function get_margin_height() {
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$style = $this->_style;
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return $style->length_in_pt(array(
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$style->height,
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$style->margin_top,
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$style->margin_bottom,
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$style->border_top_width,
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$style->border_bottom_width,
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$style->padding_top,
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$style->padding_bottom
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), $this->_containing_block["h"]);
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}
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/**
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* Return the width of the margin box of the frame, in pt. Meaningless
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* unless the width has been calculated properly.
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*
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* @return float
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*/
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function get_margin_width() {
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$style = $this->_style;
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return $style->length_in_pt(array(
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$style->width,
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$style->margin_left,
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$style->margin_right,
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$style->border_left_width,
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$style->border_right_width,
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$style->padding_left,
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$style->padding_right
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), $this->_containing_block["w"]);
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}
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function get_break_margins(){
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$style = $this->_style;
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return $style->length_in_pt(array(
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//$style->height,
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$style->margin_top,
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$style->margin_bottom,
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$style->border_top_width,
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$style->border_bottom_width,
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$style->padding_top,
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$style->padding_bottom
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), $this->_containing_block["h"]);
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}
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/**
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* Return the padding box (x,y,w,h) of the frame
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*
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* @return array
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*/
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function get_padding_box() {
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$style = $this->_style;
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$cb = $this->_containing_block;
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$x = $this->_position["x"] +
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$style->length_in_pt(array($style->margin_left,
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$style->border_left_width),
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$cb["w"]);
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$y = $this->_position["y"] +
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$style->length_in_pt(array($style->margin_top,
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$style->border_top_width),
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$cb["h"]);
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$w = $style->length_in_pt(array($style->padding_left,
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$style->width,
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$style->padding_right),
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$cb["w"]);
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$h = $style->length_in_pt(array($style->padding_top,
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$style->height,
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$style->padding_bottom),
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$cb["h"]);
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return array(0 => $x, "x" => $x,
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1 => $y, "y" => $y,
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2 => $w, "w" => $w,
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3 => $h, "h" => $h);
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}
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/**
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* Return the border box of the frame
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*
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* @return array
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*/
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function get_border_box() {
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$style = $this->_style;
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$cb = $this->_containing_block;
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$x = $this->_position["x"] + $style->length_in_pt($style->margin_left, $cb["w"]);
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$y = $this->_position["y"] + $style->length_in_pt($style->margin_top, $cb["h"]);
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$w = $style->length_in_pt(array($style->border_left_width,
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$style->padding_left,
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$style->width,
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$style->padding_right,
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$style->border_right_width),
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$cb["w"]);
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$h = $style->length_in_pt(array($style->border_top_width,
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$style->padding_top,
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$style->height,
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$style->padding_bottom,
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$style->border_bottom_width),
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$cb["h"]);
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return array(0 => $x, "x" => $x,
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1 => $y, "y" => $y,
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2 => $w, "w" => $w,
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3 => $h, "h" => $h);
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}
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function get_opacity($opacity = null) {
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if ( $opacity !== null ) {
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$this->set_opacity($opacity);
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}
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return $this->_opacity;
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}
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/**
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* @return Line_Box
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*/
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function &get_containing_line() {
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return $this->_containing_line;
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}
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//........................................................................
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// Set methods
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function set_id($id) {
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$this->_id = $id;
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// We can only set attributes of DOMElement objects (nodeType == 1).
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// Since these are the only objects that we can assign CSS rules to,
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// this shortcoming is okay.
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if ( $this->_node->nodeType == XML_ELEMENT_NODE )
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$this->_node->setAttribute("frame_id", $id);
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}
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function set_style(Style $style) {
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if ( is_null($this->_style) )
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$this->_original_style = clone $style;
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//$style->set_frame($this);
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$this->_style = $style;
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}
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function set_decorator(Frame_Decorator $decorator) {
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$this->_decorator = $decorator;
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}
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function set_containing_block($x = null, $y = null, $w = null, $h = null) {
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if ( is_array($x) ){
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foreach($x as $key => $val){
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$$key = $val;
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}
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}
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if (is_numeric($x)) {
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$this->_containing_block["x"] = $x;
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}
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if (is_numeric($y)) {
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$this->_containing_block["y"] = $y;
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}
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if (is_numeric($w)) {
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$this->_containing_block["w"] = $w;
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}
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if (is_numeric($h)) {
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$this->_containing_block["h"] = $h;
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}
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}
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|
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function set_position($x = null, $y = null) {
|
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if ( is_array($x) )
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extract($x);
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|
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if ( is_numeric($x) ) {
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$this->_position["x"] = $x;
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}
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|
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if ( is_numeric($y) ) {
|
|
$this->_position["y"] = $y;
|
|
}
|
|
}
|
|
|
|
function set_opacity($opacity) {
|
|
$parent = $this->get_parent();
|
|
$base_opacity = (($parent && $parent->_opacity !== null) ? $parent->_opacity : 1.0);
|
|
$this->_opacity = $base_opacity * $opacity;
|
|
}
|
|
|
|
function set_containing_line(Line_Box $line) {
|
|
$this->_containing_line = $line;
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
/**
|
|
* Tells if the frame is a text node
|
|
* @return bool
|
|
*/
|
|
function is_text_node() {
|
|
if ( isset($this->_is_cache["text_node"]) ) {
|
|
return $this->_is_cache["text_node"];
|
|
}
|
|
|
|
return $this->_is_cache["text_node"] = ($this->get_node()->nodeName === "#text");
|
|
}
|
|
|
|
function is_positionned() {
|
|
if ( isset($this->_is_cache["positionned"]) ) {
|
|
return $this->_is_cache["positionned"];
|
|
}
|
|
|
|
$position = $this->get_style()->position;
|
|
|
|
return $this->_is_cache["positionned"] = in_array($position, Style::$POSITIONNED_TYPES);
|
|
}
|
|
|
|
function is_absolute() {
|
|
if ( isset($this->_is_cache["absolute"]) ) {
|
|
return $this->_is_cache["absolute"];
|
|
}
|
|
|
|
$position = $this->get_style()->position;
|
|
|
|
return $this->_is_cache["absolute"] = ($position === "absolute" || $position === "fixed");
|
|
}
|
|
|
|
function is_block() {
|
|
if ( isset($this->_is_cache["block"]) ) {
|
|
return $this->_is_cache["block"];
|
|
}
|
|
|
|
return $this->_is_cache["block"] = in_array($this->get_style()->display, Style::$BLOCK_TYPES);
|
|
}
|
|
|
|
function is_in_flow() {
|
|
if ( isset($this->_is_cache["in_flow"]) ) {
|
|
return $this->_is_cache["in_flow"];
|
|
}
|
|
|
|
return $this->_is_cache["in_flow"] = !(DOMPDF_ENABLE_CSS_FLOAT && $this->get_style()->float !== "none" || $this->is_absolute());
|
|
}
|
|
|
|
function is_pre(){
|
|
if ( isset($this->_is_cache["pre"]) ) {
|
|
return $this->_is_cache["pre"];
|
|
}
|
|
|
|
$white_space = $this->get_style()->white_space;
|
|
|
|
return $this->_is_cache["pre"] = in_array($white_space, array("pre", "pre-wrap"));
|
|
}
|
|
|
|
function is_table(){
|
|
if ( isset($this->_is_cache["table"]) ) {
|
|
return $this->_is_cache["table"];
|
|
}
|
|
|
|
$display = $this->get_style()->display;
|
|
|
|
return $this->_is_cache["table"] = in_array($display, Style::$TABLE_TYPES);
|
|
}
|
|
|
|
|
|
/**
|
|
* Inserts a new child at the beginning of the Frame
|
|
*
|
|
* @param $child Frame The new Frame to insert
|
|
* @param $update_node boolean Whether or not to update the DOM
|
|
*/
|
|
function prepend_child(Frame $child, $update_node = true) {
|
|
if ( $update_node )
|
|
$this->_node->insertBefore($child->_node, $this->_first_child ? $this->_first_child->_node : null);
|
|
|
|
// Remove the child from its parent
|
|
if ( $child->_parent )
|
|
$child->_parent->remove_child($child, false);
|
|
|
|
$child->_parent = $this;
|
|
$child->_prev_sibling = null;
|
|
|
|
// Handle the first child
|
|
if ( !$this->_first_child ) {
|
|
$this->_first_child = $child;
|
|
$this->_last_child = $child;
|
|
$child->_next_sibling = null;
|
|
} else {
|
|
$this->_first_child->_prev_sibling = $child;
|
|
$child->_next_sibling = $this->_first_child;
|
|
$this->_first_child = $child;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Inserts a new child at the end of the Frame
|
|
*
|
|
* @param $child Frame The new Frame to insert
|
|
* @param $update_node boolean Whether or not to update the DOM
|
|
*/
|
|
function append_child(Frame $child, $update_node = true) {
|
|
if ( $update_node )
|
|
$this->_node->appendChild($child->_node);
|
|
|
|
// Remove the child from its parent
|
|
if ( $child->_parent )
|
|
$child->_parent->remove_child($child, false);
|
|
|
|
$child->_parent = $this;
|
|
$child->_next_sibling = null;
|
|
|
|
// Handle the first child
|
|
if ( !$this->_last_child ) {
|
|
$this->_first_child = $child;
|
|
$this->_last_child = $child;
|
|
$child->_prev_sibling = null;
|
|
} else {
|
|
$this->_last_child->_next_sibling = $child;
|
|
$child->_prev_sibling = $this->_last_child;
|
|
$this->_last_child = $child;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Inserts a new child immediately before the specified frame
|
|
*
|
|
* @param $new_child Frame The new Frame to insert
|
|
* @param $ref Frame The Frame after the new Frame
|
|
* @param $update_node boolean Whether or not to update the DOM
|
|
*/
|
|
function insert_child_before(Frame $new_child, Frame $ref, $update_node = true) {
|
|
if ( $ref === $this->_first_child ) {
|
|
$this->prepend_child($new_child, $update_node);
|
|
return;
|
|
}
|
|
|
|
if ( is_null($ref) ) {
|
|
$this->append_child($new_child, $update_node);
|
|
return;
|
|
}
|
|
|
|
if ( $ref->_parent !== $this )
|
|
throw new DOMPDF_Exception("Reference child is not a child of this node.");
|
|
|
|
// Update the node
|
|
if ( $update_node )
|
|
$this->_node->insertBefore($new_child->_node, $ref->_node);
|
|
|
|
// Remove the child from its parent
|
|
if ( $new_child->_parent )
|
|
$new_child->_parent->remove_child($new_child, false);
|
|
|
|
$new_child->_parent = $this;
|
|
$new_child->_next_sibling = $ref;
|
|
$new_child->_prev_sibling = $ref->_prev_sibling;
|
|
|
|
if ( $ref->_prev_sibling )
|
|
$ref->_prev_sibling->_next_sibling = $new_child;
|
|
|
|
$ref->_prev_sibling = $new_child;
|
|
}
|
|
|
|
/**
|
|
* Inserts a new child immediately after the specified frame
|
|
*
|
|
* @param $new_child Frame The new Frame to insert
|
|
* @param $ref Frame The Frame before the new Frame
|
|
* @param $update_node boolean Whether or not to update the DOM
|
|
*/
|
|
function insert_child_after(Frame $new_child, Frame $ref, $update_node = true) {
|
|
if ( $ref === $this->_last_child ) {
|
|
$this->append_child($new_child, $update_node);
|
|
return;
|
|
}
|
|
|
|
if ( is_null($ref) ) {
|
|
$this->prepend_child($new_child, $update_node);
|
|
return;
|
|
}
|
|
|
|
if ( $ref->_parent !== $this )
|
|
throw new DOMPDF_Exception("Reference child is not a child of this node.");
|
|
|
|
// Update the node
|
|
if ( $update_node ) {
|
|
if ( $ref->_next_sibling ) {
|
|
$next_node = $ref->_next_sibling->_node;
|
|
$this->_node->insertBefore($new_child->_node, $next_node);
|
|
} else {
|
|
$new_child->_node = $this->_node->appendChild($new_child);
|
|
}
|
|
}
|
|
|
|
// Remove the child from its parent
|
|
if ( $new_child->_parent)
|
|
$new_child->_parent->remove_child($new_child, false);
|
|
|
|
$new_child->_parent = $this;
|
|
$new_child->_prev_sibling = $ref;
|
|
$new_child->_next_sibling = $ref->_next_sibling;
|
|
|
|
if ( $ref->_next_sibling )
|
|
$ref->_next_sibling->_prev_sibling = $new_child;
|
|
|
|
$ref->_next_sibling = $new_child;
|
|
}
|
|
|
|
|
|
/**
|
|
* Remove a child frame
|
|
*
|
|
* @param $child Frame
|
|
* @param $update_node boolean Whether or not to remove the DOM node
|
|
* @return Frame The removed child frame
|
|
*/
|
|
function remove_child(Frame $child, $update_node = true) {
|
|
if ( $child->_parent !== $this )
|
|
throw new DOMPDF_Exception("Child not found in this frame");
|
|
|
|
if ( $update_node )
|
|
$this->_node->removeChild($child->_node);
|
|
|
|
if ( $child === $this->_first_child )
|
|
$this->_first_child = $child->_next_sibling;
|
|
|
|
if ( $child === $this->_last_child )
|
|
$this->_last_child = $child->_prev_sibling;
|
|
|
|
if ( $child->_prev_sibling )
|
|
$child->_prev_sibling->_next_sibling = $child->_next_sibling;
|
|
|
|
if ( $child->_next_sibling )
|
|
$child->_next_sibling->_prev_sibling = $child->_prev_sibling;
|
|
|
|
$child->_next_sibling = null;
|
|
$child->_prev_sibling = null;
|
|
$child->_parent = null;
|
|
return $child;
|
|
}
|
|
|
|
//........................................................................
|
|
|
|
// Debugging function:
|
|
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") ) {
|
|
$tmp = htmlspecialchars($css_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;
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Linked-list IteratorAggregate
|
|
*
|
|
* @access private
|
|
* @package dompdf
|
|
*/
|
|
class FrameList implements IteratorAggregate {
|
|
protected $_frame;
|
|
|
|
function __construct($frame) { $this->_frame = $frame; }
|
|
function getIterator() { return new FrameListIterator($this->_frame); }
|
|
}
|
|
|
|
/**
|
|
* Linked-list Iterator
|
|
*
|
|
* Returns children in order and allows for list to change during iteration,
|
|
* provided the changes occur to or after the current element
|
|
*
|
|
* @access private
|
|
* @package dompdf
|
|
*/
|
|
class FrameListIterator implements Iterator {
|
|
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
protected $_parent;
|
|
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
protected $_cur;
|
|
|
|
/**
|
|
* @var int
|
|
*/
|
|
protected $_num;
|
|
|
|
function __construct(Frame $frame) {
|
|
$this->_parent = $frame;
|
|
$this->_cur = $frame->get_first_child();
|
|
$this->_num = 0;
|
|
}
|
|
|
|
function rewind() {
|
|
$this->_cur = $this->_parent->get_first_child();
|
|
$this->_num = 0;
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
function valid() {
|
|
return isset($this->_cur);// && ($this->_cur->get_prev_sibling() === $this->_prev);
|
|
}
|
|
|
|
function key() { return $this->_num; }
|
|
|
|
/**
|
|
* @return Frame
|
|
*/
|
|
function current() { return $this->_cur; }
|
|
|
|
/**
|
|
* @return Frame
|
|
*/
|
|
function next() {
|
|
|
|
$ret = $this->_cur;
|
|
if ( !$ret )
|
|
return null;
|
|
|
|
$this->_cur = $this->_cur->get_next_sibling();
|
|
$this->_num++;
|
|
return $ret;
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Pre-order IteratorAggregate
|
|
*
|
|
* @access private
|
|
* @package dompdf
|
|
*/
|
|
class FrameTreeList implements IteratorAggregate {
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
protected $_root;
|
|
|
|
function __construct(Frame $root) { $this->_root = $root; }
|
|
|
|
/**
|
|
* @return FrameTreeIterator
|
|
*/
|
|
function getIterator() { return new FrameTreeIterator($this->_root); }
|
|
}
|
|
|
|
/**
|
|
* Pre-order Iterator
|
|
*
|
|
* Returns frames in preorder traversal order (parent then children)
|
|
*
|
|
* @access private
|
|
* @package dompdf
|
|
*/
|
|
class FrameTreeIterator implements Iterator {
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
protected $_root;
|
|
protected $_stack = array();
|
|
|
|
/**
|
|
* @var int
|
|
*/
|
|
protected $_num;
|
|
|
|
function __construct(Frame $root) {
|
|
$this->_stack[] = $this->_root = $root;
|
|
$this->_num = 0;
|
|
}
|
|
|
|
function rewind() {
|
|
$this->_stack = array($this->_root);
|
|
$this->_num = 0;
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
function valid() { return count($this->_stack) > 0; }
|
|
|
|
/**
|
|
* @return int
|
|
*/
|
|
function key() { return $this->_num; }
|
|
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
function current() { return end($this->_stack); }
|
|
|
|
/**
|
|
* @var Frame
|
|
*/
|
|
function next() {
|
|
$b = end($this->_stack);
|
|
|
|
// Pop last element
|
|
unset($this->_stack[ key($this->_stack) ]);
|
|
$this->_num++;
|
|
|
|
// Push all children onto the stack in reverse order
|
|
if ( $c = $b->get_last_child() ) {
|
|
$this->_stack[] = $c;
|
|
while ( $c = $c->get_prev_sibling() )
|
|
$this->_stack[] = $c;
|
|
}
|
|
return $b;
|
|
}
|
|
}
|