acf-link_picker-v4.php

<?php

class acf_field_link_picker extends acf_field {
	
	// vars
	var $settings, // will hold info such as dir / path
		$defaults; // will hold default field options
		
		
	/*
	*  __construct
	*
	*  Set name / label needed for actions / filters
	*
	*  @since	3.6
	*  @date	23/01/13
	*/
	
	function __construct()
	{
		// vars
		$this->name = 'link_picker';
		$this->label = __('Link Picker');
		$this->category = __("Choice",'acf'); // Basic, Content, Choice, etc
		$this->defaults = array(
			// add default here to merge into your field. 
			// This makes life easy when creating the field options as you don't need to use any if( isset('') ) logic. eg:
			//'preview_size' => 'thumbnail'
		);
		
		
		// do not delete!
    	parent::__construct();
    	
    	
    	// settings
		$this->settings = array(
			'path' => apply_filters('acf/helpers/get_path', __FILE__),
			'dir' => apply_filters('acf/helpers/get_dir', __FILE__),
			'version' => '1.0.0'
		);

	}
	
	
	/*
	*  create_options()
	*
	*  Create extra options for your field. This is rendered when editing a field.
	*  The value of $field['name'] can be used (like below) to save extra data to the $field
	*
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$field	- an array holding all the field's data
	*/
	
	function create_options( $field )
	{
		// defaults?
		/*
		$field = array_merge($this->defaults, $field);
		*/
		
		// key is needed in the field names to correctly save the data
		$key = $field['name'];
		
		
		// Create Field Options HTML
		?>
<!--<tr class="field_option field_option_<?php echo $this->name; ?>">
	<td class="label">
		<label><?php _e("Preview Size",'acf'); ?></label>
		<p class="description"><?php _e("Thumbnail is advised",'acf'); ?></p>
	</td>
	<td>
		<?php
		
		do_action('acf/create_field', array(
			'type'		=>	'radio',
			'name'		=>	'fields['.$key.'][preview_size]',
			'value'		=>	$field['preview_size'],
			'layout'	=>	'horizontal',
			'choices'	=>	array(
				'thumbnail' => __('Thumbnail'),
				'something_else' => __('Something Else'),
			)
		));
		
		?>
	</td>
</tr>-->
		<?php
		
	}
	
	
	/*
	*  create_field()
	*
	*  Create the HTML interface for your field
	*
	*  @param	$field - an array holding all the field's data
	*
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*/
	
	function create_field( $field )
	{
		// defaults?
		/*
		$field = array_merge($this->defaults, $field);
		*/
		
		// perhaps use $field['preview_size'] to alter the markup?
		//var_dump($field);
        
        $exists = true;
        if ($field['value'] === FALSE || (isset($field['value']['url']) && $field['value']['url'] == ''))
        {
            $exists = false;
        }
        
		// create Field HTML
		?>
		<div id="link-picker-<?php echo $field['key']; ?>-wrap">
            <p>
                <?php if ($exists) : ?>
                <?php _e('Currently selected page', 'acf-link_picker') ?>:
            	<?php endif; ?>
                
                <input type="hidden" name="<?php echo $field['name']; ?>[url]" id="link-picker-<?php echo $field['key']; ?>-url" value="<?php echo $field['value']['url']; ?>">
                <input type="hidden" name="<?php echo $field['name']; ?>[title]" id="link-picker-<?php echo $field['key']; ?>-title" value="<?php echo $field['value']['title']; ?>">
                <input type="hidden" name="<?php echo $field['name']; ?>[target]" id="link-picker-<?php echo $field['key']; ?>-target" value="<?php echo ( isset($field['value']['target']) ) ? $field['value']['target'] : ''; ?>">
                
                <div id="link-picker-<?php echo $field['key']; ?>-exists"<?php if (!$exists) { echo ' style="display:none;"'; } ?>>
                    <?php _e('URL', 'acf-link_picker') ?>: <em id="link-picker-<?php echo $field['key']; ?>-url-label"><a href="<?php echo $field['value']['url']; ?>" target="_blank"><?php echo $field['value']['url']; ?></a></em><br>
                    <?php _e('Title', 'acf-link_picker') ?>: <em id="link-picker-<?php echo $field['key']; ?>-title-label"><?php echo $field['value']['title']; ?></em><br>
                    <?php _e('Open in new window', 'acf-link_picker') ?>: <em id="link-picker-<?php echo $field['key']; ?>-target-label"><?php if (isset($field['value']['target']) && $field['value']['target'] == '_blank') { _e('Yes', 'acf-link_picker'); } else { _e('No', 'acf-link_picker'); } ?></em>
                </div>
                <div id="link-picker-<?php echo $field['key']; ?>-none"<?php if ($exists) { echo ' style="display:none;"'; } ?>>
                    <em><?php _e('No link selected yet', 'acf-link_picker') ?></em>
                </div>
            </p>
            <p>
                <a href="" class="acf-lp-link-btn acf-button grey" id="link-picker-<?php echo $field['key']; ?>"><?php if (!$exists) { _e('Insert Link', 'acf-link_picker'); }else{ _e('Edit Link', 'acf-link_picker'); } ?></a>
                <a href="" class="acf-lp-link-remove-btn acf-button grey" id="link-picker-<?php echo $field['key']; ?>-remove"<?php if (!$exists) { echo ' style="display:none;"'; } ?>><?php _e('Remove Link', 'acf-link_picker'); ?></a>
            </p>
		</div>
		<?php
	}
	
	
	/*
	*  input_admin_enqueue_scripts()
	*
	*  This action is called in the admin_enqueue_scripts action on the edit screen where your field is created.
	*  Use this action to add CSS + JavaScript to assist your create_field() action.
	*
	*  $info	http://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_scripts
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*/

	function input_admin_enqueue_scripts()
	{
		// Note: This function can be removed if not used
		
		// register ACF scripts
		wp_register_script( 'acf-input-link_picker', $this->settings['dir'] . 'js/input.js', array('acf-input'), $this->settings['version'] );
		wp_register_style( 'acf-input-link_picker', $this->settings['dir'] . 'css/input.css', array('acf-input'), $this->settings['version'] );

		$translations = array(
			'insert_link' => __('Insert Link', 'acf-link_picker'),
			'edit_link' => __('Edit Link', 'acf-link_picker'),
			'yes' => __('Yes', 'acf-link_picker'),
			'no' => __('No', 'acf-link_picker')
		);

		wp_localize_script('acf-input-link_picker', 'translations', $translations);
		
		// scripts
		wp_enqueue_script(array(
			'acf-input-link_picker',	
		));

		// styles
		/*wp_enqueue_style(array(
			'acf-input-link_picker',	
		));
		*/
		
	}
	
	
	/*
	*  input_admin_head()
	*
	*  This action is called in the admin_head action on the edit screen where your field is created.
	*  Use this action to add CSS and JavaScript to assist your create_field() action.
	*
	*  @info	http://codex.wordpress.org/Plugin_API/Action_Reference/admin_head
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*/

	function input_admin_head()
	{
		// Note: This function can be removed if not used
	}
	
	
	/*
	*  field_group_admin_enqueue_scripts()
	*
	*  This action is called in the admin_enqueue_scripts action on the edit screen where your field is edited.
	*  Use this action to add CSS + JavaScript to assist your create_field_options() action.
	*
	*  $info	http://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_scripts
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*/

	function field_group_admin_enqueue_scripts()
	{
		// Note: This function can be removed if not used
	}

	
	/*
	*  field_group_admin_head()
	*
	*  This action is called in the admin_head action on the edit screen where your field is edited.
	*  Use this action to add CSS and JavaScript to assist your create_field_options() action.
	*
	*  @info	http://codex.wordpress.org/Plugin_API/Action_Reference/admin_head
	*  @type	action
	*  @since	3.6
	*  @date	23/01/13
	*/

	function field_group_admin_head()
	{
		// Note: This function can be removed if not used
	}


	/*
	*  load_value()
	*
		*  This filter is applied to the $value after it is loaded from the db
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$value - the value found in the database
	*  @param	$post_id - the $post_id from which the value was loaded
	*  @param	$field - the field array holding all the field options
	*
	*  @return	$value - the value to be saved in the database
	*/
	
	function load_value( $value, $post_id, $field )
	{
		// Note: This function can be removed if not used
		return $value;
	}
	
	
	/*
	*  update_value()
	*
	*  This filter is applied to the $value before it is updated in the db
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$value - the value which will be saved in the database
	*  @param	$post_id - the $post_id of which the value will be saved
	*  @param	$field - the field array holding all the field options
	*
	*  @return	$value - the modified value
	*/
	
	function update_value( $value, $post_id, $field )
	{
		// Note: This function can be removed if not used
		return $value;
	}
	
	
	/*
	*  format_value()
	*
	*  This filter is applied to the $value after it is loaded from the db and before it is passed to the create_field action
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$value	- the value which was loaded from the database
	*  @param	$post_id - the $post_id from which the value was loaded
	*  @param	$field	- the field array holding all the field options
	*
	*  @return	$value	- the modified value
	*/
	
	function format_value( $value, $post_id, $field )
	{
		// defaults?
		/*
		$field = array_merge($this->defaults, $field);
		*/
		
		// perhaps use $field['preview_size'] to alter the $value?
		
		
		// Note: This function can be removed if not used
		return $value;
	}
	
	
	/*
	*  format_value_for_api()
	*
	*  This filter is applied to the $value after it is loaded from the db and before it is passed back to the API functions such as the_field
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$value	- the value which was loaded from the database
	*  @param	$post_id - the $post_id from which the value was loaded
	*  @param	$field	- the field array holding all the field options
	*
	*  @return	$value	- the modified value
	*/
	
	function format_value_for_api( $value, $post_id, $field )
	{
		// defaults?
		/*
		$field = array_merge($this->defaults, $field);
		*/
		
		// perhaps use $field['preview_size'] to alter the $value?
		
		
		// Note: This function can be removed if not used
		return $value;
	}
	
	
	/*
	*  load_field()
	*
	*  This filter is applied to the $field after it is loaded from the database
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$field - the field array holding all the field options
	*
	*  @return	$field - the field array holding all the field options
	*/
	
	function load_field( $field )
	{
		// Note: This function can be removed if not used
		return $field;
	}
	
	
	/*
	*  update_field()
	*
	*  This filter is applied to the $field before it is saved to the database
	*
	*  @type	filter
	*  @since	3.6
	*  @date	23/01/13
	*
	*  @param	$field - the field array holding all the field options
	*  @param	$post_id - the field group ID (post_type = acf)
	*
	*  @return	$field - the modified field
	*/

	function update_field( $field, $post_id )
	{
		// Note: This function can be removed if not used
		return $field;
	}

	
}


// create field
new acf_field_link_picker();

?>