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uamv/gfpdf-blank.php Secret

Last active April 3, 2023 14:42
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Allow generation of blank PDF in Gravity PDF
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gfpdf-blank.php
<?php
// Utilize admin labels if defined on the field.
add_filter( 'gfpdf_field_label', function( $label, $field, $entry ) {
return ( strlen( $field->adminLabel ) > 0 ) ? $field->adminLabel : $label;
}, 10, 3 );
// Get the URI
$request = $_SERVER['REQUEST_URI'];
// Check if we're generating a blank form
if ( preg_match( '/blank[\/]?$/', $request ) ) {
// Override empty and conditional settings
add_filter( 'gfpdf_current_pdf_configuration', function( $config, $entry, $form ) {
$config['meta']['empty'] = true;
$config['meta']['conditional'] = false;
return $config;
}, 10, 3 );
// Handle empty display of various field types
add_action( 'gfpdf_field_value', function( $value, $field, $entry, $form, $class ) {
switch ( $field->type ) {
case 'text':
case 'textarea':
case 'uid':
case 'email':
case 'phone':
case 'date':
case 'signature':
case 'post_title':
case 'time':
case 'website':
case 'fileupload':
$value = '';
break;
case 'name':
case 'address':
$value = array();
break;
case 'checkbox':
case 'radio':
case 'multiselect':
$html = '<ul style="list-style-type:none;">';
foreach ( $field->choices as $key => $option ) {
if ( 'checkbox' == $field->type || 'multiselect' == $field->type ) {
$html .= '<li>❐ ' . $option['text'] . '</li>';
} elseif ( 'radio' == $field->type ) {
$html .= '<li>❍ ' . $option['text'] . '</li>';
}
}
$html .= '</ul>';
$value = $html;
break;
case 'select': // this one returns the raw HTML
if ( isset( $field->cssClass ) && strpos($field->cssClass, 'pdf-blank-empty') !== false ) {
$value = '';
} else {
foreach ( $field->choices as $key => $option ) {
$html .= '❍ ' . $option['text'] . ' ';
}
$value = $html;
}
break;
case 'list':
if ( $field->enableColumns ) {
$value = typewheel_pdf_autofill_blank_list( $value, $field, $entry, $form, $class );
$total_rows = $rows = (int) count( $value );
if ( isset( $field->cssClass ) && preg_match( '/(?<=pdf-blank-rows-)[\d]+/', $field->cssClass, $desired_rows ) ) {
$total_rows = $desired_rows = (int) $desired_rows[0] - 1;
if ( $rows < $desired_rows ) {
while ( $desired_rows > $rows ) {
foreach ( $field->choices as $key => $column ) {
$value[ $desired_rows ][ $column['text'] ] = '▸';
}
$desired_rows--;
}
}
}
foreach ( $field->choices as $key => $column ) {
$r = 0;
do {
if ( $value[ $r ][ $column['text'] ] == '' ) {
$value[ $r ][ $column['text'] ] = '▸';
}
$r++;
} while ($r < $total_rows);
}
} else {
$value = array();
}
break;
default:
// code...
break;
}
return $value;
}, 10, 5 );
// Set height if pdf-blank-height-## class is defined
add_filter( 'gfpdf_field_html_value', function( $html, $value, $show_label, $label, $field, $form, $entry, $class ) {
// Check if the field has a defined blank height
if ( isset( $field->cssClass ) && preg_match( '/(?<=pdf-blank-height-)[\d\.]+\w+/', $field->cssClass, $match ) ) {
/*
* We're using the new `GFPDF\\Helper\\Helper_QueryPath` class.
* It acts like jQuery for PHP which makes it very handy
*/
$qp = new GFPDF\Helper\Helper_QueryPath();
$wrapper = $qp->html5( $html );
$css = $wrapper->find( '.gfpdf-field .inner-container' )->css( 'height', $match[0] );
/*
* Query Path likes to make valid HTML from fragments like we passed, which means the HTML we need is inside '<html></html>' tags
* To fix this we'll extract the innerHTML of the <html> tag
*/
return $wrapper->top( 'html' )->innerHTML5();
}
return $html;
}, 10, 8 );
// A class to exclude fields only on blank PDFs
add_filter( 'gfpdf_pdf_html_output', function( $html, $form, $entry, $settings, $Helper_PDF ) {
$qp = new GFPDF\Helper\Helper_QueryPath();
$wrapper = $qp->html5( $html );
$css = $wrapper->find( '.pdf-blank-exclude' )->css('display','none');
return $wrapper->top( 'html' )->innerHTML5();
}, 20, 5 );
}
// Allow a blank list to be filled with values via the `gfpdf_blank_list_values` filter
function typewheel_pdf_autofill_blank_list( $value, $field, $entry, $form, $class ) {
$fill = apply_filters( 'gfpdf_blank_list_values', array(), $value, $field, $entry, $form, $class );
$value = maybe_unserialize( $value );
$headers = array_keys( $value[0] );
$filled = array();
$row_count = count( $fill );
$r = 0;
do {
foreach ( $fill as $row => $cols ) {
foreach ( $cols as $col => $data ) {
$filled[ $row ][ $headers[ $col ] ] = $data ? $data : '▸';
}
}
$r++;
} while ( $r <= $row_count );
return $filled;
}
// An extra page break class – not needed since pagebreak exists
add_filter( 'gfpdf_field_html_value', function( $html, $value, $show_label, $label, $field, $form, $entry, $class ) {
/* Check if the field has a page break */
if ( isset( $field->cssClass ) && strpos($field->cssClass, 'pdf-break-before') !== false ) {
/*
* We're using the new `GFPDF\\Helper\\Helper_QueryPath` class.
* It acts like jQuery for PHP which makes it very handy
*/
$qp = new GFPDF\Helper\Helper_QueryPath();
$wrapper = $qp->html5( $html );
$css = $wrapper->find( '.gfpdf-field' )->css( 'page-break-before', 'always' );
/*
* Query Path likes to make valid HTML from fragments like we passed, which means the HTML we need is inside '<html></html>' tags
* To fix this we'll extract the innerHTML of the <html> tag
*/
return $wrapper->top( 'html' )->innerHTML5();
}
return $html;
}, 10, 8 );
// Add HTML/CSS for PDF subsection class `pdf-subsection`
add_filter( 'gfpdf_field_section_break_html', function( $html, $title, $description, $value, $field, $form, $entry, $class ) {
/*
* We're using the new `GFPDF\\Helper\\Helper_QueryPath` class.
* It acts like jQuery for PHP which makes it very handy
*/
$qp = new GFPDF\Helper\Helper_QueryPath();
$wrapper = $qp->html5( $html );
$section = $wrapper->find( '.gfpdf-section-title' );
if ( $section->hasClass('pdf-break-before') ) {
// Add our pagebreak CSS class
$wrapper->find( '.gfpdf-section-title' )->css( 'page-break-before', 'always' );
}
if ( $section->hasClass('pdf-subsection') ) {
$style = array(
'border-top' => 'none',
'font-size' => '75%',
'margin-top' => '0',
'padding-left' => '15px',
'padding-bottom'=> '5px',
'border-left' => '2px solid #65574A',
'line-height' => '1'
);
/* Insert our description after the field label */
$wrapper->find( '.gfpdf-section-title' )->css( $style );
}
/* Check if the field has a description */
if ( isset( $description ) && 0 < strlen( $description ) && $section->hasClass('pdf-description') ) {
$wrapper->find( '.gfpdf-section-title h3' )->after( '<div id="field-' . $field->id . '-desc" class="gfpdf-section-description gfpdf-field">' . $description . '</div>' );
}
/*
* Query Path likes to make valid HTML from fragments like we passed, which means the HTML we need is inside '<html></html>' tags
* To fix this we'll extract the innerHTML of the <html> tag
*/
return $wrapper->top( 'html' )->innerHTML5();
}, 10, 8 );
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