function get_float_offsets()
{
$enable_css_float = $this->_block_frame->get_dompdf()->get_option("enable_css_float");
if (!$enable_css_float) {
return;
}
static $anti_infinite_loop = 500;
// FIXME smelly hack
$reflower = $this->_block_frame->get_reflower();
if (!$reflower) {
return;
}
$cb_w = null;
$block = $this->_block_frame;
$root = $block->get_root();
if (!$root) {
return;
}
$floating_frames = $this->get_floats_inside($root);
foreach ($floating_frames as $child_key => $floating_frame) {
$id = $floating_frame->get_id();
if (isset($this->floating_blocks[$id])) {
continue;
}
$floating_style = $floating_frame->get_style();
$float = $floating_style->float;
$floating_width = $floating_frame->get_margin_width();
if (!$cb_w) {
$cb_w = $floating_frame->get_containing_block("w");
}
$line_w = $this->get_width();
if (!$floating_frame->_float_next_line && $cb_w <= $line_w + $floating_width && $cb_w > $line_w) {
$floating_frame->_float_next_line = true;
continue;
}
// If the child is still shifted by the floating element
if ($anti_infinite_loop-- > 0 && $floating_frame->get_position("y") + $floating_frame->get_margin_height() > $this->y && $block->get_position("x") + $block->get_margin_width() > $floating_frame->get_position("x")) {
if ($float === "left") {
$this->left += $floating_width;
} else {
$this->right += $floating_width;
}
$this->floating_blocks[$id] = true;
} else {
$root->remove_floating_frame($child_key);
}
}
}
/**
* @param Frame $child
* @param float $cb_x
* @param float $cb_w
*/
function process_float(Frame $child, $cb_x, $cb_w){
$enable_css_float = $this->_frame->get_dompdf()->get_option("enable_css_float");
if ( !$enable_css_float ) {
return;
}
$child_style = $child->get_style();
$root = $this->_frame->get_root();
// Handle "float"
if ( $child_style->float !== "none" ) {
$root->add_floating_frame($child);
// Remove next frame's beginning whitespace
$next = $child->get_next_sibling();
if ( $next && $next instanceof Text_Frame_Decorator) {
$next->set_text(ltrim($next->get_text()));
}
$line_box = $this->_frame->get_current_line_box();
list($old_x, $old_y) = $child->get_position();
$float_x = $cb_x;
$float_y = $old_y;
$float_w = $child->get_margin_width();
if ( $child_style->clear === "none" ) {
switch( $child_style->float ) {
case "left":
$float_x += $line_box->left;
break;
case "right":
$float_x += ($cb_w - $line_box->right - $float_w);
break;
}
}
else {
if ( $child_style->float === "right" ) {
$float_x += ($cb_w - $float_w);
}
}
if ( $cb_w < $float_x + $float_w - $old_x ) {
// TODO handle when floating elements don't fit
}
$line_box->get_float_offsets();
if ( $child->_float_next_line ) {
$float_y += $line_box->h;
}
$child->set_position($float_x, $float_y);
$child->move($float_x - $old_x, $float_y - $old_y, true);
}
}
