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<?php
/**
*
* @package phpBB3
* @copyright (c) 2011 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* Resource locator interface.
*
* Objects implementing this interface maintain mapping from template handles
* to source template file paths and locate templates.
*
* Locates style files.
*
* Resource locator is aware of styles tree, and can return actual
* filesystem paths (i.e., the "child" style or the "parent" styles)
* depending on what files exist.
*
* Root paths stored in locator are paths to style directories. Templates are
* stored in subdirectory that $template_path points to.
*
* @package phpBB3
*/
interface phpbb_template_locator
{
/**
* Sets the template filenames for handles. $filename_array
* should be a hash of handle => filename pairs.
*
* @param array $filname_array Should be a hash of handle => filename pairs.
*/
public function set_filenames(array $filename_array);
/**
* Determines the filename for a template handle.
*
* The filename comes from array used in a set_filenames call,
* which should have been performed prior to invoking this function.
* Return value is a file basename (without path).
*
* @param $handle string Template handle
* @return string Filename corresponding to the template handle
*/
public function get_filename_for_handle($handle);
/**
* Determines the source file path for a template handle without
* regard for styles tree.
*
* This function returns the path in "primary" style directory
* corresponding to the given template handle. That path may or
* may not actually exist on the filesystem. Because this function
* does not perform stat calls to determine whether the path it
* returns actually exists, it is faster than get_source_file_for_handle.
*
* Use get_source_file_for_handle to obtain the actual path that is
* guaranteed to exist (which might come from the parent style
* directory if primary style has parent styles).
*
* This function will trigger an error if the handle was never
* associated with a template file via set_filenames.
*
* @param $handle string Template handle
* @return string Path to source file path in primary style directory
*/
public function get_virtual_source_file_for_handle($handle);
/**
* Determines the source file path for a template handle, accounting
* for styles tree and verifying that the path exists.
*
* This function returns the actual path that may be compiled for
* the specified template handle. It will trigger an error if
* the template handle was never associated with a template path
* via set_filenames or if the template file does not exist on the
* filesystem.
*
* Use get_virtual_source_file_for_handle to just resolve a template
* handle to a path without any filesystem or styles tree checks.
*
* @param string $handle Template handle (i.e. "friendly" template name)
* @param bool $find_all If true, each root path will be checked and function
* will return array of files instead of string and will not
* trigger a error if template does not exist
* @return string Source file path
*/
public function get_source_file_for_handle($handle, $find_all = false);
/**
* Locates source file path, accounting for styles tree and verifying that
* the path exists.
*
* Unlike previous functions, this function works without template handle
* and it can search for more than one file. If more than one file name is
* specified, it will return location of file that it finds first.
*
* @param array $files List of files to locate.
* @param bool $return_default Determines what to return if file does not
* exist. If true, function will return location where file is
* supposed to be. If false, function will return false.
* @param bool $return_full_path If true, function will return full path
* to file. If false, function will return file name. This
* parameter can be used to check which one of set of files
* is available.
* @return string or boolean Source file path if file exists or $return_default is
* true. False if file does not exist and $return_default is false
*/
public function get_first_file_location($files, $return_default = false, $return_full_path = true);
}
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