mirror of
https://github.com/kennethreitz-archive/wordpress-skeleton.git
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Kenneth Reitz
118 lines
2.5 KiB
PHP
118 lines
2.5 KiB
PHP
<?php
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// All field classes should extend from this one or one of it's descendants
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abstract class FEE_Field_Base {
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private $filter;
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private $input_type;
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private static $wrapped = array();
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/**
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* Constructor; nothing fancy
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* @return null
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*/
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final public function __construct($filter, $type) {
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$this->filter = $filter;
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$this->input_type = $type;
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$this->setup();
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}
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/**
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* The type of object this field operates with
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* @return string
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*/
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abstract public static function get_object_type();
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/**
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* Optional actions to be done once per instance
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* @return null
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*/
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protected function setup() {}
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/**
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* Mark the field as editable
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* @return string Wrapped content
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*/
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public function wrap($content, $object_id, $inline = false) {
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if ( ! $this->allow($object_id) )
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return $content;
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self::$wrapped[$this->input_type] = true;
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if ( is_null($content) )
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$content = '';
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if ( ! is_scalar($content) )
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trigger_error("scalar expected. " . gettype($content) . " given", E_USER_WARNING);
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$class = 'fee-field fee-filter-' . $this->filter;
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$object_id = esc_attr($object_id);
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$wrap_tag = ( $inline || in_array($this->input_type, array('input', 'terminput', 'image')) ) ? 'span' : 'div';
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return html("$wrap_tag class='{$class}' data-fee='{$object_id}'", $content);
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}
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/**
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* Retrieve the current data for the field
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* @return string Unfiltered content
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*/
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abstract public function get($object_id);
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/**
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* Save the data retrieved from the field
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* @return string Saved content
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*/
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abstract public function save($object_id, $content);
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/**
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* Check user permissions
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* @return bool
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*/
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abstract public function check($object_id = 0);
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/**
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* Generate a standard placeholder
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* @return string
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*/
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protected function placeholder() {
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return '[' . __('empty', 'front-end-editor') . ']';
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}
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protected function placehold($content) {
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if ( empty($content) )
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$content = $this->placeholder();
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return $content;
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}
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/**
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* Get the filter of the current instance
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* @return string
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*/
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final protected function get_filter() {
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return $this->filter;
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}
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/**
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* Allow external code to block editing for certain objects
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* @return bool
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*/
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final public function allow($object_id) {
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return apply_filters('front_end_editor_allow_' . $this->get_object_type(), true, $object_id, $this->filter, $this->input_type);
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}
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/**
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* Get the list of used input types
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* @return array
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*/
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final public static function get_wrapped() {
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return self::$wrapped;
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}
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}
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