/**
* @return Frame_Decorator
*/
function get_parent()
{
$p = $this->_frame->get_parent();
if ($p && $deco = $p->get_decorator()) {
while ($tmp = $deco->get_decorator())
$deco = $tmp;
return $deco;
} else if ($p)
return $p;
else
return null;
}
function render(Frame $frame)
{
// Render background & borders
//parent::render($frame);
$p = $frame->get_parent();
$style = $frame->get_style();
$cb = $frame->get_containing_block();
list($x, $y) = $frame->get_padding_box();
$x += $style->length_in_pt($style->padding_left, $cb["w"]);
$y += $style->length_in_pt($style->padding_top, $cb["h"]);
$w = $style->length_in_pt($style->width, $cb["w"]);
$h = $style->length_in_pt($style->height, $cb["h"]);
$this->_canvas->image($frame->get_image_url(), $frame->get_image_ext(), $x, $y, $w, $h);
}
/**
* @return Frame_Decorator
*/
function get_parent()
{
$p = $this->_frame->get_parent();
if ($p && ($deco = $p->get_decorator())) {
while ($tmp = $deco->get_decorator()) {
$deco = $tmp;
}
return $deco;
} else {
if ($p) {
return $p;
}
}
return null;
}
/**
* Check if $frame will fit on the page. If the frame does not fit,
* the frame tree is modified so that a page break occurs in the
* correct location.
*
* @param Frame $frame the frame to check
* @return Frame the frame following the page break
*/
function check_page_break(Frame $frame)
{
// Do not split if we have already or if the frame was already
// pushed to the next page (prevents infinite loops)
if ($this->_page_full || $frame->_already_pushed) {
return false;
}
// If the frame is absolute of fixed it shouldn't break
$p = $frame;
do {
if ($p->is_absolute()) {
return false;
}
} while ($p = $p->get_parent());
$margin_height = $frame->get_margin_height();
// FIXME If the row is taller than the page and
// if it the first of the page, we don't break
if ($frame->get_style()->display === "table-row" && !$frame->get_prev_sibling() && $margin_height > $this->get_margin_height()) {
return false;
}
// Determine the frame's maximum y value
$max_y = $frame->get_position("y") + $margin_height;
// If a split is to occur here, then the bottom margins & paddings of all
// parents of $frame must fit on the page as well:
$p = $frame->get_parent();
while ($p) {
$style = $p->get_style();
$max_y += $style->length_in_pt(array($style->margin_bottom, $style->padding_bottom, $style->border_bottom_width));
$p = $p->get_parent();
}
// Check if $frame flows off the page
if ($max_y <= $this->_bottom_page_margin) {
// no: do nothing
return false;
}
dompdf_debug("page-break", "check_page_break");
dompdf_debug("page-break", "in_table: " . $this->_in_table);
// yes: determine page break location
$iter = $frame;
$flg = false;
$in_table = $this->_in_table;
dompdf_debug("page-break", "Starting search");
while ($iter) {
// echo "\nbacktrack: " .$iter->get_node()->nodeName ." ".spl_object_hash($iter->get_node()). "";
if ($iter === $this) {
dompdf_debug("page-break", "reached root.");
// We've reached the root in our search. Just split at $frame.
break;
}
if ($this->_page_break_allowed($iter)) {
dompdf_debug("page-break", "break allowed, splitting.");
$iter->split(null, true);
$this->_page_full = true;
$this->_in_table = $in_table;
$frame->_already_pushed = true;
return true;
}
if (!$flg && ($next = $iter->get_last_child())) {
dompdf_debug("page-break", "following last child.");
if ($next->is_table()) {
$this->_in_table++;
}
$iter = $next;
continue;
}
if ($next = $iter->get_prev_sibling()) {
dompdf_debug("page-break", "following prev sibling.");
if ($next->is_table() && !$iter->is_table()) {
$this->_in_table++;
} else {
if (!$next->is_table() && $iter->is_table()) {
$this->_in_table--;
}
}
$iter = $next;
$flg = false;
continue;
}
if ($next = $iter->get_parent()) {
dompdf_debug("page-break", "following parent.");
if ($iter->is_table()) {
$this->_in_table--;
}
$iter = $next;
$flg = true;
continue;
}
break;
}
$this->_in_table = $in_table;
// No valid page break found. Just break at $frame.
dompdf_debug("page-break", "no valid break found, just splitting.");
// If we are in a table, backtrack to the nearest top-level table row
if ($this->_in_table) {
$num_tables = $this->_in_table - 1;
$iter = $frame;
while ($iter && $num_tables && $iter->get_style()->display !== "table") {
$iter = $iter->get_parent();
$num_tables--;
}
$iter = $frame;
while ($iter && $iter->get_style()->display !== "table-row") {
$iter = $iter->get_parent();
}
}
$frame->split(null, true);
$this->_page_full = true;
$frame->_already_pushed = true;
return true;
}
/**
* Determine if a page break is allowed before $frame
* http://www.w3.org/TR/CSS21/page.html#allowed-page-breaks
*
* In the normal flow, page breaks can occur at the following places:
*
* 1. In the vertical margin between block boxes. When a page
* break occurs here, the used values of the relevant
* 'margin-top' and 'margin-bottom' properties are set to '0'.
* 2. Between line boxes inside a block box.
*
* These breaks are subject to the following rules:
*
* * Rule A: Breaking at (1) is allowed only if the
* 'page-break-after' and 'page-break-before' properties of
* all the elements generating boxes that meet at this margin
* allow it, which is when at least one of them has the value
* 'always', 'left', or 'right', or when all of them are
* 'auto'.
*
* * Rule B: However, if all of them are 'auto' and the
* nearest common ancestor of all the elements has a
* 'page-break-inside' value of 'avoid', then breaking here is
* not allowed.
*
* * Rule C: Breaking at (2) is allowed only if the number of
* line boxes between the break and the start of the enclosing
* block box is the value of 'orphans' or more, and the number
* of line boxes between the break and the end of the box is
* the value of 'widows' or more.
*
* * Rule D: In addition, breaking at (2) is allowed only if
* the 'page-break-inside' property is 'auto'.
*
* If the above doesn't provide enough break points to keep
* content from overflowing the page boxes, then rules B and D are
* dropped in order to find additional breakpoints.
*
* If that still does not lead to sufficient break points, rules A
* and C are dropped as well, to find still more break points.
*
* We will also allow breaks between table rows. However, when
* splitting a table, the table headers should carry over to the
* next page (but they don't yet).
*
* @param Frame $frame the frame to check
* @return bool true if a break is allowed, false otherwise
*/
protected function _page_break_allowed(Frame $frame)
{
$block_types = array("block", "list-item", "table", "-dompdf-image");
dompdf_debug("page-break", "_page_break_allowed(" . $frame->get_node()->nodeName . ")");
$display = $frame->get_style()->display;
// Block Frames (1):
if (in_array($display, $block_types)) {
// Avoid breaks within table-cells
if ($this->_in_table) {
dompdf_debug("page-break", "In table: " . $this->_in_table);
return false;
}
// Rules A & B
if ($frame->get_style()->page_break_before === "avoid") {
dompdf_debug("page-break", "before: avoid");
return false;
}
// Find the preceeding block-level sibling
$prev = $frame->get_prev_sibling();
while ($prev && !in_array($prev->get_style()->display, $block_types)) {
$prev = $prev->get_prev_sibling();
}
// Does the previous element allow a page break after?
if ($prev && $prev->get_style()->page_break_after === "avoid") {
dompdf_debug("page-break", "after: avoid");
return false;
}
// If both $prev & $frame have the same parent, check the parent's
// page_break_inside property.
$parent = $frame->get_parent();
if ($prev && $parent && $parent->get_style()->page_break_inside === "avoid") {
dompdf_debug("page-break", "parent inside: avoid");
return false;
}
// To prevent cascading page breaks when a top-level element has
// page-break-inside: avoid, ensure that at least one frame is
// on the page before splitting.
if ($parent->get_node()->nodeName === "body" && !$prev) {
// We are the body's first child
dompdf_debug("page-break", "Body's first child.");
return false;
}
// If the frame is the first block-level frame, use the value from
// $frame's parent instead.
if (!$prev && $parent) {
return $this->_page_break_allowed($parent);
}
dompdf_debug("page-break", "block: break allowed");
return true;
} else {
if (in_array($display, Style::$INLINE_TYPES)) {
// Avoid breaks within table-cells
if ($this->_in_table) {
dompdf_debug("page-break", "In table: " . $this->_in_table);
return false;
}
// Rule C
$block_parent = $frame->find_block_parent();
if (count($block_parent->get_line_boxes()) < $frame->get_style()->orphans) {
dompdf_debug("page-break", "orphans");
return false;
}
// FIXME: Checking widows is tricky without having laid out the
// remaining line boxes. Just ignore it for now...
// Rule D
$p = $block_parent;
while ($p) {
if ($p->get_style()->page_break_inside === "avoid") {
dompdf_debug("page-break", "parent->inside: avoid");
return false;
}
$p = $p->find_block_parent();
}
// To prevent cascading page breaks when a top-level element has
// page-break-inside: avoid, ensure that at least one frame with
// some content is on the page before splitting.
$prev = $frame->get_prev_sibling();
while ($prev && ($prev->is_text_node() && trim($prev->get_node()->nodeValue) == "")) {
$prev = $prev->get_prev_sibling();
}
if ($block_parent->get_node()->nodeName === "body" && !$prev) {
// We are the body's first child
dompdf_debug("page-break", "Body's first child.");
return false;
}
// Skip breaks on empty text nodes
if ($frame->is_text_node() && $frame->get_node()->nodeValue == "") {
return false;
}
dompdf_debug("page-break", "inline: break allowed");
return true;
// Table-rows
} else {
if ($display === "table-row") {
// Simply check if the parent table's page_break_inside property is
// not 'avoid'
$p = Table_Frame_Decorator::find_parent_table($frame);
while ($p) {
if ($p->get_style()->page_break_inside === "avoid") {
dompdf_debug("page-break", "parent->inside: avoid");
return false;
}
$p = $p->find_block_parent();
}
// Avoid breaking after the first row of a table
if ($p && $p->get_first_child() === $frame) {
dompdf_debug("page-break", "table: first-row");
return false;
}
// If this is a nested table, prevent the page from breaking
if ($this->_in_table > 1) {
dompdf_debug("page-break", "table: nested table");
return false;
}
dompdf_debug("page-break", "table-row/row-groups: break allowed");
return true;
} else {
if (in_array($display, Table_Frame_Decorator::$ROW_GROUPS)) {
// Disallow breaks at row-groups: only split at row boundaries
return false;
} else {
dompdf_debug("page-break", "? " . $frame->get_style()->display . "");
return false;
}
}
}
}
}
/**
* Parses the CSS "content" property
*
* @return string The resulting string
*/
protected function _parse_content()
{
// Matches generated content
$re = "/\n" . "\\s(counters?\\([^)]*\\))|\n" . "\\A(counters?\\([^)]*\\))|\n" . "\\s([\"']) ( (?:[^\"']|\\\\[\"'])+ )(?<!\\\\)\\3|\n" . "\\A([\"']) ( (?:[^\"']|\\\\[\"'])+ )(?<!\\\\)\\5|\n" . "\\s([^\\s\"']+)|\n" . "\\A([^\\s\"']+)\n" . "/xi";
$content = $this->_frame->get_style()->content;
$quotes = $this->_parse_quotes();
// split on spaces, except within quotes
if (!preg_match_all($re, $content, $matches, PREG_SET_ORDER)) {
return;
}
$text = "";
foreach ($matches as $match) {
if (isset($match[2]) && $match[2] !== "") {
$match[1] = $match[2];
}
if (isset($match[6]) && $match[6] !== "") {
$match[4] = $match[6];
}
if (isset($match[8]) && $match[8] !== "") {
$match[7] = $match[8];
}
if (isset($match[1]) && $match[1] !== "") {
// counters?(...)
$match[1] = mb_strtolower(trim($match[1]));
// Handle counter() references:
// http://www.w3.org/TR/CSS21/generate.html#content
$i = mb_strpos($match[1], ")");
if ($i === false) {
continue;
}
$args = explode(",", mb_substr($match[1], 8, $i - 8));
$counter_id = $args[0];
if ($match[1][7] === "(") {
// counter(name [,style])
if (isset($args[1])) {
$type = trim($args[1]);
} else {
$type = null;
}
$p = $this->_frame->find_block_parent();
$text .= $p->counter_value($counter_id, $type);
} else {
if ($match[1][7] === "s") {
// counters(name, string [,style])
if (isset($args[1])) {
$string = $this->_parse_string(trim($args[1]));
} else {
$string = "";
}
if (isset($args[2])) {
$type = $args[2];
} else {
$type = null;
}
$p = $this->_frame->find_block_parent();
$tmp = "";
while ($p) {
$tmp = $p->counter_value($counter_id, $type) . $string . $tmp;
$p = $p->find_block_parent();
}
$text .= $tmp;
} else {
// countertops?
continue;
}
}
} else {
if (isset($match[4]) && $match[4] !== "") {
// String match
$text .= $this->_parse_string($match[4]);
} else {
if (isset($match[7]) && $match[7] !== "") {
// Directive match
if ($match[7] === "open-quote") {
// FIXME: do something here
$text .= $quotes[0][0];
} else {
if ($match[7] === "close-quote") {
// FIXME: do something else here
$text .= $quotes[0][1];
} else {
if ($match[7] === "no-open-quote") {
// FIXME:
} else {
if ($match[7] === "no-close-quote") {
// FIXME:
} else {
if (mb_strpos($match[7], "attr(") === 0) {
$i = mb_strpos($match[7], ")");
if ($i === false) {
continue;
}
$attr = mb_substr($match[7], 5, $i - 5);
if ($attr == "") {
continue;
}
$text .= $this->_frame->get_parent()->get_node()->getAttribute($attr);
} else {
continue;
}
}
}
}
}
}
}
}
}
return $text;
}
function render(Frame $frame)
{
$style = $frame->get_style();
if (!$frame->get_first_child()) {
return;
}
// No children, no service
// Draw the left border if applicable
$bp = $style->get_border_properties();
$widths = array($style->length_in_pt($bp["top"]["width"]), $style->length_in_pt($bp["right"]["width"]), $style->length_in_pt($bp["bottom"]["width"]), $style->length_in_pt($bp["left"]["width"]));
// Draw the background & border behind each child. To do this we need
// to figure out just how much space each child takes:
list($x, $y) = $frame->get_first_child()->get_position();
$w = null;
$h = 0;
// $x += $widths[3];
// $y += $widths[0];
$this->_set_opacity($frame->get_opacity($style->opacity));
$first_row = true;
foreach ($frame->get_children() as $child) {
list($child_x, $child_y, $child_w, $child_h) = $child->get_padding_box();
if (!is_null($w) && $child_x < $x + $w) {
//This branch seems to be supposed to being called on the first part
//of an inline html element, and the part after the if clause for the
//parts after a line break.
//But because $w initially mostly is 0, and gets updated only on the next
//round, this seem to be never executed and the common close always.
// The next child is on another line. Draw the background &
// borders on this line.
// Background:
if (($bg = $style->background_color) !== "transparent") {
$this->_canvas->filled_rectangle($x, $y, $w, $h, $bg);
}
if (($url = $style->background_image) && $url !== "none") {
$this->_background_image($url, $x, $y, $w, $h, $style);
}
// If this is the first row, draw the left border
if ($first_row) {
if ($bp["left"]["style"] !== "none" && $bp["left"]["color"] !== "transparent" && $bp["left"]["width"] > 0) {
$method = "_border_" . $bp["left"]["style"];
$this->{$method}($x, $y, $h + $widths[0] + $widths[2], $bp["left"]["color"], $widths, "left");
}
$first_row = false;
}
// Draw the top & bottom borders
if ($bp["top"]["style"] !== "none" && $bp["top"]["color"] !== "transparent" && $bp["top"]["width"] > 0) {
$method = "_border_" . $bp["top"]["style"];
$this->{$method}($x, $y, $w + $widths[1] + $widths[3], $bp["top"]["color"], $widths, "top");
}
if ($bp["bottom"]["style"] !== "none" && $bp["bottom"]["color"] !== "transparent" && $bp["bottom"]["width"] > 0) {
$method = "_border_" . $bp["bottom"]["style"];
$this->{$method}($x, $y + $h + $widths[0] + $widths[2], $w + $widths[1] + $widths[3], $bp["bottom"]["color"], $widths, "bottom");
}
// Handle anchors & links
$link_node = null;
if ($frame->get_node()->nodeName === "a") {
$link_node = $frame->get_node();
} else {
if ($frame->get_parent()->get_node()->nodeName === "a") {
$link_node = $frame->get_parent()->get_node();
}
}
if ($link_node && ($href = $link_node->getAttribute("href"))) {
$this->_canvas->add_link($href, $x, $y, $w, $h);
}
$x = $child_x;
$y = $child_y;
$w = $child_w;
$h = $child_h;
continue;
}
if (is_null($w)) {
$w = $child_w;
} else {
$w += $child_w;
}
$h = max($h, $child_h);
if (DEBUG_LAYOUT && DEBUG_LAYOUT_INLINE) {
$this->_debug_layout($child->get_border_box(), "blue");
if (DEBUG_LAYOUT_PADDINGBOX) {
$this->_debug_layout($child->get_padding_box(), "blue", array(0.5, 0.5));
}
}
}
// Handle the last child
if (($bg = $style->background_color) !== "transparent") {
$this->_canvas->filled_rectangle($x + $widths[3], $y + $widths[0], $w, $h, $bg);
}
//On continuation lines (after line break) of inline elements, the style got copied.
//But a non repeatable background image should not be repeated on the next line.
//But removing the background image above has never an effect, and removing it below
//removes it always, even on the initial line.
//Need to handle it elsewhere, e.g. on certain ...clone()... usages.
// Repeat not given: default is Style::__construct
// ... && (!($repeat = $style->background_repeat) || $repeat === "repeat" ...
//different position? $this->_background_image($url, $x, $y, $w, $h, $style);
if (($url = $style->background_image) && $url !== "none") {
$this->_background_image($url, $x + $widths[3], $y + $widths[0], $w, $h, $style);
}
// Add the border widths
$w += $widths[1] + $widths[3];
$h += $widths[0] + $widths[2];
// make sure the border and background start inside the left margin
$left_margin = $style->length_in_pt($style->margin_left);
$x += $left_margin;
// If this is the first row, draw the left border too
if ($first_row && $bp["left"]["style"] !== "none" && $bp["left"]["color"] !== "transparent" && $widths[3] > 0) {
$method = "_border_" . $bp["left"]["style"];
$this->{$method}($x, $y, $h, $bp["left"]["color"], $widths, "left");
}
// Draw the top & bottom borders
if ($bp["top"]["style"] !== "none" && $bp["top"]["color"] !== "transparent" && $widths[0] > 0) {
$method = "_border_" . $bp["top"]["style"];
$this->{$method}($x, $y, $w, $bp["top"]["color"], $widths, "top");
}
if ($bp["bottom"]["style"] !== "none" && $bp["bottom"]["color"] !== "transparent" && $widths[2] > 0) {
$method = "_border_" . $bp["bottom"]["style"];
$this->{$method}($x, $y + $h, $w, $bp["bottom"]["color"], $widths, "bottom");
}
// pre_var_dump(get_class($frame->get_next_sibling()));
// $last_row = get_class($frame->get_next_sibling()) !== 'Inline_Frame_Decorator';
// Draw the right border if this is the last row
if ($bp["right"]["style"] !== "none" && $bp["right"]["color"] !== "transparent" && $widths[1] > 0) {
$method = "_border_" . $bp["right"]["style"];
$this->{$method}($x + $w, $y, $h, $bp["right"]["color"], $widths, "right");
}
// Only two levels of links frames
$link_node = null;
if ($frame->get_node()->nodeName === "a") {
$link_node = $frame->get_node();
if (($name = $link_node->getAttribute("name")) || ($name = $link_node->getAttribute("id"))) {
$this->_canvas->add_named_dest($name);
}
}
if ($frame->get_parent() && $frame->get_parent()->get_node()->nodeName === "a") {
$link_node = $frame->get_parent()->get_node();
}
// Handle anchors & links
if ($link_node) {
if ($href = $link_node->getAttribute("href")) {
$this->_canvas->add_link($href, $x, $y, $w, $h);
}
}
}
function render(Frame $frame)
{
$style = $frame->get_style();
$font_size = $style->get_font_size();
$line_height = $style->length_in_pt($style->line_height, $frame->get_containing_block("w"));
$this->_set_opacity($frame->get_opacity($style->opacity));
// Handle list-style-image
// If list style image is requested but missing, fall back to predefined types
if ($style->list_style_image !== "none" && strcmp($img = $frame->get_image_url(), DOMPDF_LIB_DIR . "/res/broken_image.png") != 0) {
list($x, $y) = $frame->get_position();
//For expected size and aspect, instead of box size, use image natural size scaled to DPI.
// Resample the bullet image to be consistent with 'auto' sized images
// See also Image_Frame_Reflower::get_min_max_width
// Tested php ver: value measured in px, suffix "px" not in value: rtrim unnecessary.
//$w = $frame->get_width();
//$h = $frame->get_height();
list($width, $height) = dompdf_getimagesize($img);
$w = (double) rtrim($width, "px") * 72 / DOMPDF_DPI;
$h = (double) rtrim($height, "px") * 72 / DOMPDF_DPI;
$x -= $w;
$y -= ($line_height - $font_size) / 2;
//Reverse hinting of list_bullet_positioner
$this->_canvas->image($img, $frame->get_image_ext(), $x, $y, $w, $h);
} else {
$bullet_style = $style->list_style_type;
$fill = false;
switch ($bullet_style) {
default:
case "disc":
$fill = true;
case "circle":
list($x, $y) = $frame->get_position();
$r = $font_size * List_Bullet_Frame_Decorator::BULLET_SIZE / 2;
$x -= $font_size * (List_Bullet_Frame_Decorator::BULLET_SIZE / 2);
$y += $font_size * (1 - List_Bullet_Frame_Decorator::BULLET_DESCENT) / 2;
$o = $font_size * List_Bullet_Frame_Decorator::BULLET_THICKNESS;
$this->_canvas->circle($x, $y, $r, $style->color, $o, null, $fill);
break;
case "square":
list($x, $y) = $frame->get_position();
$w = $font_size * List_Bullet_Frame_Decorator::BULLET_SIZE;
$x -= $w;
$y += $font_size * (1 - List_Bullet_Frame_Decorator::BULLET_DESCENT - List_Bullet_Frame_Decorator::BULLET_SIZE) / 2;
$this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
break;
case "decimal-leading-zero":
case "decimal":
case "lower-alpha":
case "lower-latin":
case "lower-roman":
case "lower-greek":
case "upper-alpha":
case "upper-latin":
case "upper-roman":
case "1":
// HTML 4.0 compatibility
// HTML 4.0 compatibility
case "a":
case "i":
case "A":
case "I":
list($x, $y) = $frame->get_position();
$pad = null;
if ($bullet_style === "decimal-leading-zero") {
$pad = strlen($frame->get_parent()->get_parent()->get_node()->getAttribute("dompdf-children-count"));
}
$index = $frame->get_node()->getAttribute("dompdf-counter");
$text = $this->make_counter($index, $bullet_style, $pad);
$font_family = $style->font_family;
$spacing = 0;
//$frame->get_text_spacing() + $style->word_spacing;
if (trim($text) == "") {
return;
}
$x -= Font_Metrics::get_text_width($text, $font_family, $font_size, $spacing);
$this->_canvas->text($x, $y, $text, $font_family, $font_size, $style->color, $spacing);
case "none":
break;
}
}
}
/**
* Check if $frame will fit on the page. If the frame does not fit,
* the frame tree is modified so that a page break occurs in the
* correct location.
*
* @param Frame $frame the frame to check
* @return Frame the frame following the page break
*/
function check_page_break(Frame $frame)
{
// Do not split if we have already
if ($this->_page_full) {
return false;
}
// Determine the frame's maximum y value
$max_y = $frame->get_position("y") + $frame->get_margin_height();
// If a split is to occur here, then the bottom margins & paddings of all
// parents of $frame must fit on the page as well:
$p = $frame->get_parent();
while ($p) {
$style = $p->get_style();
$max_y += $style->length_in_pt(array($style->margin_bottom, $style->padding_bottom, $style->border_bottom_width));
$p = $p->get_parent();
}
// Check if $frame flows off the page
if ($max_y <= $this->_bottom_page_margin) {
// no: do nothing (?)
return false;
}
// echo "check_page_break\n";
// yes: determine page break location
$iter = $frame;
$flg = false;
$in_table = $this->_in_table;
// echo "Starting search\n";
while ($iter) {
// echo "\nbacktrack: " .$iter->get_node()->nodeName ." ".(string)$iter->get_node(). "\n";
if ($iter === $this) {
// echo "reached root.\n";
// We've reached the root in our search. Just split at $frame.
break;
}
if ($this->_page_break_allowed($iter)) {
// echo "break allowed, splitting.\n";
$iter->split();
$this->_page_full = true;
$this->_in_table = $in_table;
return true;
}
if (!$flg && ($next = $iter->get_last_child())) {
// echo "following last child.\n";
if (in_array($next->get_style()->display, Style::$TABLE_TYPES)) {
$this->_in_table++;
}
$iter = $next;
continue;
}
if ($next = $iter->get_prev_sibling()) {
// echo "following prev sibling.\n";
if (in_array($next->get_style()->display, Style::$TABLE_TYPES) && !in_array($iter->get_style()->display, Style::$TABLE_TYPES)) {
$this->_in_table++;
} else {
if (!in_array($next->get_style()->display, Style::$TABLE_TYPES) && in_array($iter->get_style()->display, Style::$TABLE_TYPES)) {
$this->_in_table--;
}
}
$iter = $next;
$flg = false;
continue;
}
if ($next = $iter->get_parent()) {
// echo "following parent.\n";
if (in_array($iter->get_style()->display, Style::$TABLE_TYPES)) {
$this->_in_table--;
}
$iter = $next;
$flg = true;
continue;
}
break;
}
$this->_in_table = $in_table;
// No valid page break found. Just break at $frame.
// echo "no valid break found, just splitting.\n";
// If we are in a table, backtrack to the nearest table row
if ($this->_in_table) {
$tr = $frame;
while ($tr && $tr->get_style()->display != "table-row") {
$tr = $tr->get_parent();
}
$tr->split();
$this->_page_full = true;
return true;
}
$frame->split();
$this->_page_full = true;
return true;
}
/**
* Parses the CSS "content" property
*
* @return string|null The resulting string
*/
protected function _parse_content()
{
// Matches generated content
$re = "/\n" . "\\s(counters?\\([^)]*\\))|\n" . "\\A(counters?\\([^)]*\\))|\n" . "\\s([\"']) ( (?:[^\"']|\\\\[\"'])+ )(?<!\\\\)\\3|\n" . "\\A([\"']) ( (?:[^\"']|\\\\[\"'])+ )(?<!\\\\)\\5|\n" . "\\s([^\\s\"']+)|\n" . "\\A([^\\s\"']+)\n" . "/xi";
$content = $this->_frame->get_style()->content;
$quotes = $this->_parse_quotes();
// split on spaces, except within quotes
if (!preg_match_all($re, $content, $matches, PREG_SET_ORDER)) {
return null;
}
$text = "";
foreach ($matches as $match) {
if (isset($match[2]) && $match[2] !== "") {
$match[1] = $match[2];
}
if (isset($match[6]) && $match[6] !== "") {
$match[4] = $match[6];
}
if (isset($match[8]) && $match[8] !== "") {
$match[7] = $match[8];
}
if (isset($match[1]) && $match[1] !== "") {
// counters?(...)
$match[1] = mb_strtolower(trim($match[1]));
// Handle counter() references:
// http://www.w3.org/TR/CSS21/generate.html#content
$i = mb_strpos($match[1], ")");
if ($i === false) {
continue;
}
preg_match('/(counters?)(^\\()*?\\(\\s*([^\\s,]+)\\s*(,\\s*["\']?([^"\'\\)]+)["\']?\\s*(,\\s*([^\\s)]+)\\s*)?)?\\)/i', $match[1], $args);
$counter_id = $args[3];
if (strtolower($args[1]) == 'counter') {
// counter(name [,style])
if (isset($args[5])) {
$type = trim($args[5]);
} else {
$type = null;
}
$p = $this->_frame->lookup_counter_frame($counter_id);
$text .= $p->counter_value($counter_id, $type);
} else {
if (strtolower($args[1]) == 'counters') {
// counters(name, string [,style])
if (isset($args[5])) {
$string = $this->_parse_string($args[5]);
} else {
$string = "";
}
if (isset($args[7])) {
$type = trim($args[7]);
} else {
$type = null;
}
$p = $this->_frame->lookup_counter_frame($counter_id);
$tmp = array();
while ($p) {
// We only want to use the counter values when they actually increment the counter
if (array_key_exists($counter_id, $p->_counters)) {
array_unshift($tmp, $p->counter_value($counter_id, $type));
}
$p = $p->lookup_counter_frame($counter_id);
}
$text .= implode($string, $tmp);
} else {
// countertops?
continue;
}
}
} else {
if (isset($match[4]) && $match[4] !== "") {
// String match
$text .= $this->_parse_string($match[4]);
} else {
if (isset($match[7]) && $match[7] !== "") {
// Directive match
if ($match[7] === "open-quote") {
// FIXME: do something here
$text .= $quotes[0][0];
} else {
if ($match[7] === "close-quote") {
// FIXME: do something else here
$text .= $quotes[0][1];
} else {
if ($match[7] === "no-open-quote") {
// FIXME:
} else {
if ($match[7] === "no-close-quote") {
// FIXME:
} else {
if (mb_strpos($match[7], "attr(") === 0) {
$i = mb_strpos($match[7], ")");
if ($i === false) {
continue;
}
$attr = mb_substr($match[7], 5, $i - 5);
if ($attr == "") {
continue;
}
$text .= $this->_frame->get_parent()->get_node()->getAttribute($attr);
} else {
continue;
}
}
}
}
}
}
}
}
}
return $text;
}
function render(Frame $frame)
{
$style = $frame->get_style();
if (!$frame->get_first_child()) {
return;
}
$bp = $style->get_border_properties();
$widths = array($style->length_in_pt($bp["top"]["width"]), $style->length_in_pt($bp["right"]["width"]), $style->length_in_pt($bp["bottom"]["width"]), $style->length_in_pt($bp["left"]["width"]));
list($x, $y) = $frame->get_first_child()->get_position();
$w = null;
$h = 0;
$this->_set_opacity($frame->get_opacity($style->opacity));
$first_row = true;
foreach ($frame->get_children() as $child) {
list($child_x, $child_y, $child_w, $child_h) = $child->get_padding_box();
if (!is_null($w) && $child_x < $x + $w) {
if (($bg = $style->background_color) !== "transparent") {
$this->_canvas->filled_rectangle($x, $y, $w, $h, $bg);
}
if (($url = $style->background_image) && $url !== "none") {
$this->_background_image($url, $x, $y, $w, $h, $style);
}
if ($first_row) {
if ($bp["left"]["style"] !== "none" && $bp["left"]["color"] !== "transparent" && $bp["left"]["width"] > 0) {
$method = "_border_" . $bp["left"]["style"];
$this->{$method}($x, $y, $h + $widths[0] + $widths[2], $bp["left"]["color"], $widths, "left");
}
$first_row = false;
}
if ($bp["top"]["style"] !== "none" && $bp["top"]["color"] !== "transparent" && $bp["top"]["width"] > 0) {
$method = "_border_" . $bp["top"]["style"];
$this->{$method}($x, $y, $w + $widths[1] + $widths[3], $bp["top"]["color"], $widths, "top");
}
if ($bp["bottom"]["style"] !== "none" && $bp["bottom"]["color"] !== "transparent" && $bp["bottom"]["width"] > 0) {
$method = "_border_" . $bp["bottom"]["style"];
$this->{$method}($x, $y + $h + $widths[0] + $widths[2], $w + $widths[1] + $widths[3], $bp["bottom"]["color"], $widths, "bottom");
}
$link_node = null;
if ($frame->get_node()->nodeName === "a") {
$link_node = $frame->get_node();
} else {
if ($frame->get_parent()->get_node()->nodeName === "a") {
$link_node = $frame->get_parent()->get_node();
}
}
if ($link_node && ($href = $link_node->getAttribute("href"))) {
$this->_canvas->add_link($href, $x, $y, $w, $h);
}
$x = $child_x;
$y = $child_y;
$w = $child_w;
$h = $child_h;
continue;
}
if (is_null($w)) {
$w = $child_w;
} else {
$w += $child_w;
}
$h = max($h, $child_h);
}
if (($bg = $style->background_color) !== "transparent") {
$this->_canvas->filled_rectangle($x + $widths[3], $y + $widths[0], $w, $h, $bg);
}
if (($url = $style->background_image) && $url !== "none") {
$this->_background_image($url, $x + $widths[3], $y + $widths[0], $w, $h, $style);
}
$w += $widths[1] + $widths[3];
$h += $widths[0] + $widths[2];
$left_margin = $style->length_in_pt($style->margin_left);
$x += $left_margin;
if ($first_row && $bp["left"]["style"] !== "none" && $bp["left"]["color"] !== "transparent" && $widths[3] > 0) {
$method = "_border_" . $bp["left"]["style"];
$this->{$method}($x, $y, $h, $bp["left"]["color"], $widths, "left");
}
if ($bp["top"]["style"] !== "none" && $bp["top"]["color"] !== "transparent" && $widths[0] > 0) {
$method = "_border_" . $bp["top"]["style"];
$this->{$method}($x, $y, $w, $bp["top"]["color"], $widths, "top");
}
if ($bp["bottom"]["style"] !== "none" && $bp["bottom"]["color"] !== "transparent" && $widths[2] > 0) {
$method = "_border_" . $bp["bottom"]["style"];
$this->{$method}($x, $y + $h, $w, $bp["bottom"]["color"], $widths, "bottom");
}
if ($bp["right"]["style"] !== "none" && $bp["right"]["color"] !== "transparent" && $widths[1] > 0) {
$method = "_border_" . $bp["right"]["style"];
$this->{$method}($x + $w, $y, $h, $bp["right"]["color"], $widths, "right");
}
$link_node = null;
if ($frame->get_node()->nodeName === "a") {
$link_node = $frame->get_node();
if (($name = $link_node->getAttribute("name")) || ($name = $link_node->getAttribute("id"))) {
$this->_canvas->add_named_dest($name);
}
}
if ($frame->get_parent() && $frame->get_parent()->get_node()->nodeName === "a") {
$link_node = $frame->get_parent()->get_node();
}
if ($link_node) {
if ($href = $link_node->getAttribute("href")) {
$this->_canvas->add_link($href, $x, $y, $w, $h);
}
}
if (DEBUG_LAYOUT && DEBUG_LAYOUT_INLINE) {
$this->_debug_layout($child->get_border_box(), "blue");
if (DEBUG_LAYOUT_PADDINGBOX) {
$this->_debug_layout($child->get_padding_box(), "blue", array(0.5, 0.5));
}
}
}
function render(Frame $frame) {
$style = $frame->get_style();
$font_size = $style->get_font_size();
$line_height = $style->length_in_pt($style->line_height, $frame->get_containing_block("w"));
$this->_set_opacity( $frame->get_opacity( $style->opacity ) );
$li = $frame->get_parent();
// Don't render bullets twice if if was split
if ($li->_splitted) {
return;
}
// Handle list-style-image
// If list style image is requested but missing, fall back to predefined types
if ( $style->list_style_image !== "none" &&
!Image_Cache::is_broken($img = $frame->get_image_url())) {
list($x,$y) = $frame->get_position();
//For expected size and aspect, instead of box size, use image natural size scaled to DPI.
// Resample the bullet image to be consistent with 'auto' sized images
// See also Image_Frame_Reflower::get_min_max_width
// Tested php ver: value measured in px, suffix "px" not in value: rtrim unnecessary.
//$w = $frame->get_width();
//$h = $frame->get_height();
list($width, $height) = dompdf_getimagesize($img);
$dpi = $this->_dompdf->get_option("dpi");
$w = ((float)rtrim($width, "px") * 72) / $dpi;
$h = ((float)rtrim($height, "px") * 72) / $dpi;
$x -= $w;
$y -= ($line_height - $font_size)/2; //Reverse hinting of list_bullet_positioner
$this->_canvas->image( $img, $x, $y, $w, $h);
} else {
$bullet_style = $style->list_style_type;
$fill = false;
switch ($bullet_style) {
default:
case "disc":
$fill = true;
case "circle":
list($x,$y) = $frame->get_position();
$r = ($font_size*(List_Bullet_Frame_Decorator::BULLET_SIZE /*-List_Bullet_Frame_Decorator::BULLET_THICKNESS*/ ))/2;
$x -= $font_size*(List_Bullet_Frame_Decorator::BULLET_SIZE/2);
$y += ($font_size*(1-List_Bullet_Frame_Decorator::BULLET_DESCENT))/2;
$o = $font_size*List_Bullet_Frame_Decorator::BULLET_THICKNESS;
$this->_canvas->circle($x, $y, $r, $style->color, $o, null, $fill);
break;
case "square":
list($x, $y) = $frame->get_position();
$w = $font_size*List_Bullet_Frame_Decorator::BULLET_SIZE;
$x -= $w;
$y += ($font_size*(1-List_Bullet_Frame_Decorator::BULLET_DESCENT-List_Bullet_Frame_Decorator::BULLET_SIZE))/2;
$this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
break;
case "decimal-leading-zero":
case "decimal":
case "lower-alpha":
case "lower-latin":
case "lower-roman":
case "lower-greek":
case "upper-alpha":
case "upper-latin":
case "upper-roman":
case "1": // HTML 4.0 compatibility
case "a":
case "i":
case "A":
case "I":
$pad = null;
if ( $bullet_style === "decimal-leading-zero" ) {
$pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
}
$node = $frame->get_node();
if ( !$node->hasAttribute("dompdf-counter") ) {
return;
}
$index = $node->getAttribute("dompdf-counter");
$text = $this->make_counter($index, $bullet_style, $pad);
if ( trim($text) == "" ) {
return;
}
$spacing = 0;
$font_family = $style->font_family;
$line = $li->get_containing_line();
list($x, $y) = array($frame->get_position("x"), $line->y);
$x -= Font_Metrics::get_text_width($text, $font_family, $font_size, $spacing);
// Take line-height into account
$line_height = $style->line_height;
$y += ($line_height - $font_size) / 4; // FIXME I thought it should be 2, but 4 gives better results
$this->_canvas->text($x, $y, $text,
$font_family, $font_size,
$style->color, $spacing);
case "none":
break;
}
}
}
function check_page_break(Frame $frame)
{
if ($this->_page_full || $frame->_already_pushed) {
return false;
}
$p = $frame;
do {
if ($p->is_absolute()) {
return false;
}
} while ($p = $p->get_parent());
$margin_height = $frame->get_margin_height();
if ($frame->get_style()->display === "table-row" && !$frame->get_prev_sibling() && $margin_height > $this->get_margin_height()) {
return false;
}
$max_y = $frame->get_position("y") + $margin_height;
$p = $frame->get_parent();
while ($p) {
$style = $p->get_style();
$max_y += $style->length_in_pt(array($style->margin_bottom, $style->padding_bottom, $style->border_bottom_width));
$p = $p->get_parent();
}
if ($max_y <= $this->_bottom_page_margin) {
return false;
}
dompdf_debug("page-break", "check_page_break");
dompdf_debug("page-break", "in_table: " . $this->_in_table);
$iter = $frame;
$flg = false;
$in_table = $this->_in_table;
dompdf_debug("page-break", "Starting search");
while ($iter) {
if ($iter === $this) {
dompdf_debug("page-break", "reached root.");
break;
}
if ($this->_page_break_allowed($iter)) {
dompdf_debug("page-break", "break allowed, splitting.");
$iter->split(null, true);
$this->_page_full = true;
$this->_in_table = $in_table;
$frame->_already_pushed = true;
return true;
}
if (!$flg && ($next = $iter->get_last_child())) {
dompdf_debug("page-break", "following last child.");
if ($next->is_table()) {
$this->_in_table++;
}
$iter = $next;
continue;
}
if ($next = $iter->get_prev_sibling()) {
dompdf_debug("page-break", "following prev sibling.");
if ($next->is_table() && !$iter->is_table()) {
$this->_in_table++;
} else {
if (!$next->is_table() && $iter->is_table()) {
$this->_in_table--;
}
}
$iter = $next;
$flg = false;
continue;
}
if ($next = $iter->get_parent()) {
dompdf_debug("page-break", "following parent.");
if ($iter->is_table()) {
$this->_in_table--;
}
$iter = $next;
$flg = true;
continue;
}
break;
}
$this->_in_table = $in_table;
dompdf_debug("page-break", "no valid break found, just splitting.");
if ($this->_in_table) {
$num_tables = $this->_in_table - 1;
$iter = $frame;
while ($iter && $num_tables && $iter->get_style()->display !== "table") {
$iter = $iter->get_parent();
$num_tables--;
}
$iter = $frame;
while ($iter && $iter->get_style()->display !== "table-row") {
$iter = $iter->get_parent();
}
}
$frame->split(null, true);
$this->_page_full = true;
$frame->_already_pushed = true;
return true;
}
function render(Frame $frame)
{
$style = $frame->get_style();
$font_size = $style->get_font_size();
$line_height = $style->length_in_pt($style->line_height, $frame->get_containing_block("w"));
$this->_set_opacity($frame->get_opacity($style->opacity));
if ($style->list_style_image !== "none" && !Image_Cache::is_broken($img = $frame->get_image_url())) {
list($x, $y) = $frame->get_position();
list($width, $height) = dompdf_getimagesize($img);
$w = (double) rtrim($width, "px") * 72 / DOMPDF_DPI;
$h = (double) rtrim($height, "px") * 72 / DOMPDF_DPI;
$x -= $w;
$y -= ($line_height - $font_size) / 2;
$this->_canvas->image($img, $x, $y, $w, $h);
} else {
$bullet_style = $style->list_style_type;
$fill = false;
switch ($bullet_style) {
default:
case "disc":
$fill = true;
case "circle":
list($x, $y) = $frame->get_position();
$r = $font_size * List_Bullet_Frame_Decorator::BULLET_SIZE / 2;
$x -= $font_size * (List_Bullet_Frame_Decorator::BULLET_SIZE / 2);
$y += $font_size * (1 - List_Bullet_Frame_Decorator::BULLET_DESCENT) / 2;
$o = $font_size * List_Bullet_Frame_Decorator::BULLET_THICKNESS;
$this->_canvas->circle($x, $y, $r, $style->color, $o, null, $fill);
break;
case "square":
list($x, $y) = $frame->get_position();
$w = $font_size * List_Bullet_Frame_Decorator::BULLET_SIZE;
$x -= $w;
$y += $font_size * (1 - List_Bullet_Frame_Decorator::BULLET_DESCENT - List_Bullet_Frame_Decorator::BULLET_SIZE) / 2;
$this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
break;
case "decimal-leading-zero":
case "decimal":
case "lower-alpha":
case "lower-latin":
case "lower-roman":
case "lower-greek":
case "upper-alpha":
case "upper-latin":
case "upper-roman":
case "1":
case "a":
case "i":
case "A":
case "I":
$li = $frame->get_parent();
$pad = null;
if ($bullet_style === "decimal-leading-zero") {
$pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
}
$index = $frame->get_node()->getAttribute("dompdf-counter");
$text = $this->make_counter($index, $bullet_style, $pad);
if (trim($text) == "") {
return;
}
$spacing = 0;
$font_family = $style->font_family;
$line = $li->get_containing_line();
list($x, $y) = array($frame->get_position("x"), $line->y);
$x -= Font_Metrics::get_text_width($text, $font_family, $font_size, $spacing);
$line_height = $style->line_height;
$y += ($line_height - $font_size) / 4;
$this->_canvas->text($x, $y, $text, $font_family, $font_size, $style->color, $spacing);
case "none":
break;
}
}
}
