function FrameBox(&$root, &$pipeline)
{
// Inherit 'border' CSS value from parent (FRAMESET tag), if current FRAME
// has no FRAMEBORDER attribute, and FRAMESET has one
$parent = $root->parent();
if (!$root->has_attribute('frameborder') && $parent->has_attribute('frameborder')) {
pop_border();
push_border(get_border());
}
$this->GenericContainerBox($root);
// If NO src attribute specified, just return.
if (!$root->has_attribute('src')) {
return;
}
// Determine the fullly qualified URL of the frame content
$src = $root->get_attribute('src');
$url = $pipeline->guess_url($src);
$data = $pipeline->fetch($url);
/**
* If framed page could not be fetched return immediately
*/
if (is_null($data)) {
return;
}
/**
* Render only iframes containing HTML only
*
* Note that content-type header may contain additional information after the ';' sign
*/
$content_type = $data->get_additional_data('Content-Type');
$content_type_array = explode(';', $content_type);
if ($content_type_array[0] != "text/html") {
return;
}
$html = $data->get_content();
// Remove control symbols if any
$html = preg_replace('/[\\x00-\\x07]/', "", $html);
$converter = Converter::create();
$html = $converter->to_utf8($html, $data->detect_encoding());
$html = html2xhtml($html);
$tree = TreeBuilder::build($html);
// Save current stylesheet, as each frame may load its own stylesheets
//
global $g_css;
$old_css = $g_css;
global $g_css_obj;
$old_obj = $g_css_obj;
scan_styles($tree, $pipeline);
// Temporary hack: convert CSS rule array to CSS object
$g_css_obj = new CSSObject();
foreach ($g_css as $rule) {
$g_css_obj->add_rule($rule, $pipeline);
}
// TODO: stinks. Rewrite
//
$frame_root = traverse_dom_tree_pdf($tree);
$box_child =& create_pdf_box($frame_root, $pipeline);
$this->add_child($box_child);
// Restore old stylesheet
//
$g_css = $old_css;
$g_css_obj = $old_obj;
$pipeline->pop_base_url();
}
function &create_pdf_pseudoelement($root, $pe_type, &$pipeline)
{
// Store initial values to CSS stack
$css_state =& $pipeline->get_current_css_state();
$css_state->pushDefaultState();
// Initially generated boxes do not require block wrappers
// Block wrappers are required in following cases:
// - float property is specified for non-block box which cannot be directly converted to block box
// (a button, for example)
// - display set to block for such box
$need_block_wrapper = false;
$css =& $pipeline->get_current_css();
$css->apply_pseudoelement($pe_type, $root, $css_state, $pipeline);
// Now, if no content found, just return
//
$content_obj = $css_state->get_property(CSS_CONTENT);
if ($content_obj === CSS_PROPERTY_INHERIT) {
$content_obj = $css_state->getInheritedProperty(CSS_CONTENT);
}
$content = $content_obj->render($pipeline->get_counters());
if ($content === '') {
$css_state->popState();
$dummy = null;
return $dummy;
}
// CSS 2.1:
// 9.7 Relationships between 'display', 'position', and 'float'
// The three properties that affect box generation and layout
// 'display', 'position', and 'float' interact as follows:
// 1. If 'display' has the value 'none', then 'position' and 'float' do not apply.
// In this case, the element generates no box.
// 2. Otherwise, if 'position' has the value 'absolute' or 'fixed', the box is absolutely positioned,
// the computed value of 'float' is 'none', and display is set according to the table below.
// The position of the box will be determined by the 'top', 'right', 'bottom' and 'left' properties and
// the box's containing block.
$position_handler =& CSS::get_handler(CSS_POSITION);
$float_handler =& CSS::get_handler(CSS_FLOAT);
$position = $position_handler->get($css_state->getState());
if ($position === CSS_PROPERTY_INHERIT) {
$position = $css_state->getInheritedProperty(CSS_POSITION);
}
if ($position === POSITION_ABSOLUTE || $position === POSITION_FIXED) {
$float_handler->replace(FLOAT_NONE);
$need_block_wrapper |= _fix_display_position_float($css_state);
}
// 3. Otherwise, if 'float' has a value other than 'none', the box is floated and 'display' is set
// according to the table below.
$float = $float_handler->get($css_state->getState());
if ($float != FLOAT_NONE) {
$need_block_wrapper |= _fix_display_position_float($css_state);
}
// 4. Otherwise, if the element is the root element, 'display' is set according to the table below.
// 5. Otherwise, the remaining 'display' property values apply as specified. (see _fix_display_position_float)
// Note that pseudoelements may get only standard display values
$display_handler =& CSS::get_handler(CSS_DISPLAY);
$display = $display_handler->get($css_state->getState());
switch ($display) {
case 'block':
$box =& BlockBox::create_from_text($content, $pipeline);
break;
case 'inline':
$ws_handler =& CSS::get_handler(CSS_WHITE_SPACE);
$box =& InlineBox::create_from_text($content, $ws_handler->get($css_state->getState()), $pipeline);
break;
default:
die('Unsupported "display" value: ' . $display_handler->get($css_state->getState()));
}
// Check if this box needs a block wrapper (for example, floating button)
// Note that to keep float/position information, we clear the CSS stack only
// AFTER the wrapper box have been created; BUT we should clear the following CSS properties
// to avoid the fake wrapper box actually affect the layout:
// - margin
// - border
// - padding
// - background
//
if ($need_block_wrapper) {
$handler =& CSS::get_handler(CSS_MARGIN);
$handler->css("0", $pipeline);
pop_border();
push_border(default_border());
pop_padding();
push_padding(default_padding());
$handler =& CSS::get_handler(CSS_BACKGROUND);
$handler->css('transparent', $pipeline);
// Create "clean" block box
$wrapper =& new BlockBox();
$wrapper->readCSS($pipeline->get_current_css_state());
$wrapper->add_child($box);
$css_state->popState();
return $wrapper;
} else {
$css_state->popState();
return $box;
}
}
function push_css_text_defaults()
{
// No borders for pure text boxes; border can be controlled via SPANs
push_border(default_border());
push_font_family(get_font_family());
// push_font_size(get_font_size());
push_font_size("1em");
push_font_style(get_font_style());
push_font_weight(get_font_weight());
push_line_height(get_line_height());
global $g_css_handlers;
$keys = array_keys($g_css_handlers);
foreach ($keys as $key) {
$g_css_handlers[$key]->inherit_text();
}
}
function &create_pdf_pseudoelement($root, $pe_type, &$pipeline)
{
// Store initial values to CSS stack
//
push_css_defaults();
// Apply default stylesheet rules (using base element)
global $g_css_defaults_obj;
$g_css_defaults_obj->apply($root, $pipeline);
// Initially generated boxes do not require block wrappers
// Block wrappers are required in following cases:
// - float property is specified for non-block box which cannot be directly converted to block box
// (a button, for example)
// - display set to block for such box
$need_block_wrapper = false;
// Order is important. Items with most priority should be applied last
// Tag attributes
execute_attrs_before($root, $pipeline);
// CSS stylesheet
global $g_css_obj;
$g_css_obj->apply($root, $pipeline);
// values from 'style' attribute
if ($root->has_attribute("style")) {
parse_style_attr(null, $root, $pipeline);
}
// Pseudoelement-specific rules; be default, it should flow inline
//
$handler =& get_css_handler('display');
$handler->css('inline', $pipeline);
$handler =& get_css_handler('content');
$handler->css("", $pipeline);
$handler =& get_css_handler('float');
$handler->css("none", $pipeline);
$handler =& get_css_handler('position');
$handler->css("static", $pipeline);
$handler =& get_css_handler('margin');
$handler->css("0", $pipeline);
$handler =& get_css_handler('width');
$handler->css("auto", $pipeline);
$handler =& get_css_handler('height');
$handler->css("auto", $pipeline);
$g_css_obj->apply_pseudoelement($pe_type, $root, $pipeline);
// Now, if no content found, just return
//
$handler =& get_css_handler('content');
$content = $handler->get();
if ($content === "") {
pop_css_defaults();
$dummy = null;
return $dummy;
}
// CSS 2.1:
// 9.7 Relationships between 'display', 'position', and 'float'
// The three properties that affect box generation and layout —
// 'display', 'position', and 'float' — interact as follows:
// 1. If 'display' has the value 'none', then 'position' and 'float' do not apply.
// In this case, the element generates no box.
$position_handler =& get_css_handler('position');
$float_handler =& get_css_handler('float');
// 2. Otherwise, if 'position' has the value 'absolute' or 'fixed', the box is absolutely positioned,
// the computed value of 'float' is 'none', and display is set according to the table below.
// The position of the box will be determined by the 'top', 'right', 'bottom' and 'left' properties and
// the box's containing block.
$position = $position_handler->get();
if ($position === POSITION_ABSOLUTE || $position === POSITION_FIXED) {
$float_handler->replace(FLOAT_NONE);
$need_block_wrapper |= _fix_display_position_float();
}
// 3. Otherwise, if 'float' has a value other than 'none', the box is floated and 'display' is set
// according to the table below.
$float = $float_handler->get();
if ($float != FLOAT_NONE) {
$need_block_wrapper |= _fix_display_position_float();
}
// 4. Otherwise, if the element is the root element, 'display' is set according to the table below.
// 5. Otherwise, the remaining 'display' property values apply as specified. (see _fix_display_position_float)
// Note that pseudoelements may get only standard display values
$display_handler =& get_css_handler('display');
switch (trim($display_handler->get())) {
case "block":
$box =& BlockBox::create_from_text($content);
break;
case "inline":
$ws_handler =& get_css_handler('white-space');
$box =& InlineBox::create_from_text($content, $ws_handler->get());
break;
default:
die("Unsupported 'display' value: " . $display_handler->get());
}
// Check if this box needs a block wrapper (for example, floating button)
// Note that to keep float/position information, we clear the CSS stack only
// AFTER the wrapper box have been created; BUT we should clear the following CSS properties
// to avoid the fake wrapper box actually affect the layout:
// - margin
// - border
// - padding
// - background
//
if ($need_block_wrapper) {
$handler =& get_css_handler('margin');
$handler->css("0", $pipeline);
pop_border();
push_border(default_border());
pop_padding();
push_padding(default_padding());
$handler =& get_css_handler('background');
$handler->css('transparent', $pipeline);
// Create "clean" block box
$wrapper =& new BlockBox();
$wrapper->add_child($box);
// Remove CSS propery values from stack
execute_attrs_after($root, $pipeline);
pop_css_defaults();
return $wrapper;
} else {
// Remove CSS propery values from stack
execute_attrs_after($root, $pipeline);
pop_css_defaults();
return $box;
}
}
function css_border_width($value, $root)
{
$border = get_border();
$subvalues = explode(" ", $value);
switch (count($subvalues)) {
case 1:
$c1 = parse_border_width($subvalues[0], array(0, 0, 0));
$border['top']['width'] = $c1;
$border['right']['width'] = $c1;
$border['bottom']['width'] = $c1;
$border['left']['width'] = $c1;
break;
case 2:
$c1 = parse_border_width($subvalues[0], array(0, 0, 0));
$c2 = parse_border_width($subvalues[1], array(0, 0, 0));
$border['top']['width'] = $c1;
$border['right']['width'] = $c2;
$border['bottom']['width'] = $c1;
$border['left']['width'] = $c2;
break;
case 3:
$c1 = parse_border_width($subvalues[0], array(0, 0, 0));
$c2 = parse_border_width($subvalues[1], array(0, 0, 0));
$c3 = parse_border_width($subvalues[2], array(0, 0, 0));
$border['top']['width'] = $c1;
$border['right']['width'] = $c2;
$border['bottom']['width'] = $c3;
$border['left']['width'] = $c2;
break;
case 4:
$c1 = parse_border_width($subvalues[0], array(0, 0, 0));
$c2 = parse_border_width($subvalues[1], array(0, 0, 0));
$c3 = parse_border_width($subvalues[2], array(0, 0, 0));
$c4 = parse_border_width($subvalues[3], array(0, 0, 0));
$border['top']['width'] = $c1;
$border['right']['width'] = $c2;
$border['bottom']['width'] = $c3;
$border['left']['width'] = $c4;
break;
}
pop_border();
push_border($border);
}
function TableCellBox(&$root, $pipeline)
{
$this->_suppress_first = false;
$this->_suppress_last = false;
$this->colspan = 1;
$this->rowspan = 1;
// This value will be overwritten in table 'normalize_parent' method
//
$this->column = 0;
$this->row = 0;
if ($root->tagname() === 'td' || $root->tagname() === 'th') {
// Use cellspacing / cellpadding values from the containing table
$handler =& get_css_handler('-cellspacing');
$cellspacing = $handler->get();
$cp_handler =& get_css_handler('-cellpadding');
$cellpadding = $cp_handler->get();
// FIXME: I'll need to resolve that issue with COLLAPSING border model. Now borders
// are rendered separated
// if not border set explicitly, inherit value set via border attribute of TABLE tag
if (is_default_border(get_border())) {
$border = get_table_border();
pop_border();
push_border($border);
}
$margin =& get_css_handler('margin');
$margin->replace($margin->default_value());
$handler =& get_css_handler('border-collapse');
if ($handler->get() == BORDER_COLLAPSE) {
$h_padding =& get_css_handler('padding');
if ($h_padding->is_default($h_padding->get())) {
$h_padding->css($cellpadding, $pipeline);
}
} else {
$h_padding =& get_css_handler('padding');
if ($h_padding->is_default($h_padding->get())) {
$h_padding->css($cellpadding, $pipeline);
}
if ($margin->is_default($margin->get())) {
$margin->css(units_mul($cellspacing, 0.5), $pipeline);
}
}
// Save colspan and rowspan information
$this->colspan = max(1, (int) $root->get_attribute('colspan'));
$this->rowspan = max(1, (int) $root->get_attribute('rowspan'));
}
// $root->tagname() == 'td'
// Call parent constructor
$this->GenericContainerBox();
// 'vertical-align' CSS value is not inherited from the table cells
$handler =& get_css_handler('vertical-align');
$handler->push_default();
$this->create_content($root, $pipeline);
global $g_config;
if ($g_config['mode'] == "quirks") {
// QUIRKS MODE:
// H1-H6 and P elements should have their top/bottom margin suppressed if they occur as the first/last table cell child
// correspondingly; note that we cannot do it usung CSS rules, as there's no selectors for the last child.
//
$child = $root->first_child();
if ($child) {
while ($child && $child->node_type() != XML_ELEMENT_NODE) {
$child = $child->next_sibling();
}
if ($child) {
if (array_search(strtolower($child->tagname()), array("h1", "h2", "h3", "h4", "h5", "h6", "p"))) {
$this->_suppress_first = true;
}
}
}
$child = $root->last_child();
if ($child) {
while ($child && $child->node_type() != XML_ELEMENT_NODE) {
$child = $child->previous_sibling();
}
if ($child) {
if (array_search(strtolower($child->tagname()), array("h1", "h2", "h3", "h4", "h5", "h6", "p"))) {
$this->_suppress_last = true;
}
}
}
}
// pop the default vertical-align value
$handler->pop();
}
