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<?php |
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/** |
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* A PHP version of TinyMCE's configuration, to allow various parameters to be configured on a site or section basis |
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* |
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* There can be multiple HtmlEditorConfig's, which should always be created / accessed using HtmlEditorConfig::get. |
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* You can then set the currently active config using set_active. |
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* The order of precendence for which config is used is (lowest to highest): |
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* |
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* - default_config config setting |
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* - Active config assigned |
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* - Config name assigned to HtmlEditorField |
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* - Config instance assigned to HtmlEditorField |
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* |
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* Typically global config changes should set the active config. |
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* |
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* The defaut config class can be changed via dependency injection to replace HtmlEditorConfig. |
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* |
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* @author "Hamish Friedlander" <[email protected]> |
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* @package forms |
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* @subpackage fields-formattedinput |
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*/ |
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abstract class HtmlEditorConfig extends Object { |
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/** |
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* Array of registered configurations |
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* |
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* @var HtmlEditorConfig[] |
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*/ |
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protected static $configs = array(); |
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/** |
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* Identifier key of current config. This will match an array key in $configs. |
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* If left blank, will fall back to value of default_config set via config. |
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* |
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* @var string |
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*/ |
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protected static $current = null; |
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/** |
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* Name of default config. This will be ignored if $current is assigned a value. |
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* |
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* @config |
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* @var string |
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*/ |
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private static $default_config = 'default'; |
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/** |
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* Get the HtmlEditorConfig object for the given identifier. This is a correct way to get an HtmlEditorConfig |
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* instance - do not call 'new' |
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* |
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* @param string $identifier The identifier for the config set. If omitted, the active config is returned. |
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* @return HtmlEditorConfig The configuration object. |
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* This will be created if it does not yet exist for that identifier |
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*/ |
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public static function get($identifier = null) { |
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if(!$identifier) { |
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return static::get_active(); |
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} |
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// Create new instance if unconfigured |
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if (!isset(self::$configs[$identifier])) { |
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self::$configs[$identifier] = static::create(); |
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} |
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return self::$configs[$identifier]; |
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} |
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/** |
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* Assign a new config for the given identifier |
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* |
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* @param string $identifier A specific identifier |
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* @param HtmlEditorConfig $config |
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* @return HtmlEditorConfig The assigned config |
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*/ |
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public static function set_config($identifier, HtmlEditorConfig $config) { |
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self::$configs[$identifier] = $config; |
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return $config; |
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} |
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/** |
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* Set the currently active configuration object. Note that the existing active |
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* config will not be renamed to the new identifier. |
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* |
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* @param string $identifier The identifier for the config set |
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*/ |
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public static function set_active_identifier($identifier) { |
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self::$current = $identifier; |
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} |
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/** |
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* Get the currently active configuration identifier. Will fall back to default_config |
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* if unassigned. |
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* |
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* @return string The active configuration identifier |
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*/ |
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public static function get_active_identifier() { |
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$identifier = self::$current ?: static::config()->default_config; |
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return $identifier; |
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} |
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/** |
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* Get the currently active configuration object |
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* |
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* @return HtmlEditorConfig The active configuration object |
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*/ |
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public static function get_active() { |
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$identifier = self::get_active_identifier(); |
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return self::get($identifier); |
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} |
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/** |
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* Assigns the currently active config an explicit instance |
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* |
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* @param HtmlEditorConfig $config |
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* @return HtmlEditorConfig The given config |
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*/ |
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public static function set_active(HtmlEditorConfig $config) { |
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$identifier = static::get_active_identifier(); |
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return static::set_config($identifier, $config); |
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} |
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/** |
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* Get the available configurations as a map of friendly_name to |
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* configuration name. |
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* |
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* @return array |
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*/ |
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public static function get_available_configs_map() { |
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$configs = array(); |
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foreach(self::$configs as $identifier => $config) { |
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$configs[$identifier] = $config->getOption('friendly_name'); |
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} |
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return $configs; |
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} |
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/** |
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* Get the current value of an option |
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* |
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* @param string $key The key of the option to get |
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* @return mixed The value of the specified option |
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*/ |
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abstract public function getOption($key); |
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/** |
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* Set the value of one option |
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* @param string $key The key of the option to set |
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* @param mixed $value The value of the option to set |
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* @return $this |
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*/ |
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abstract public function setOption($key, $value); |
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/** |
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* Set multiple options. This does not merge recursively, but only at the top level. |
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* |
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* @param array $options The options to set, as keys and values of the array |
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* @return $this |
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*/ |
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abstract public function setOptions($options); |
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/** |
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* Associative array of data-attributes to apply to the underlying text-area |
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* |
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* @return array |
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*/ |
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abstract public function getAttributes(); |
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/** |
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* Initialise the editor on the client side |
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*/ |
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abstract public function init(); |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: