ThunarxProviderPlugin: thunar Reference Manual

## ThunarxProviderPlugin ThunarxProviderPlugin — The interface to the plugin type registration |

## Functions

gboolean | thunarx_provider_plugin_get_resident ()
void | thunarx_provider_plugin_set_resident ()
GType | thunarx_provider_plugin_register_type ()
void | thunarx_provider_plugin_add_interface ()
GType | thunarx_provider_plugin_register_enum ()
GType | thunarx_provider_plugin_register_flags ()
#define | THUNARX_DEFINE_TYPE()
#define | THUNARX_DEFINE_TYPE_WITH_CODE()
#define | THUNARX_DEFINE_ABSTRACT_TYPE()
#define | THUNARX_DEFINE_ABSTRACT_TYPE_WITH_CODE()
#define | THUNARX_DEFINE_TYPE_EXTENDED()
#define | THUNARX_IMPLEMENT_INTERFACE()

## Properties

gboolean | resident | Read / Write

## Types and Values

| ThunarxProviderPlugin
struct | ThunarxProviderPluginIface

## Object Hierarchy

        GInterface
        ╰── ThunarxProviderPlugin

## Includes

    #include <thunarx/thunarx.h>

## Description

ThunarxProviderPlugin is the interface to the file manager's type plugin loader implementation. It provides methods to extensions - also called provider plugins - to register dynamic types and control certain aspects of the plugin (see `thunarx_provider_plugin_set_resident()`).

## Functions

### thunarx_provider_plugin_get_resident ()

    gboolean
    thunarx_provider_plugin_get_resident (const ThunarxProviderPlugin *plugin);

Determines whether the application is allowed to unload `plugin` from memory when no longer needed and reload it on demand. If `FALSE` is returned, then the application may unload `plugin` , else if `TRUE` is returned the application will take care that `plugin` is never unloaded from memory during the lifetime of the application.

#### Parameters

plugin | a ThunarxProviderPlugin. |

#### Returns

`TRUE` if `plugin` will be kept in memory once loaded for the first time.

### thunarx_provider_plugin_set_resident ()

    void
    thunarx_provider_plugin_set_resident (ThunarxProviderPlugin *plugin,
                                          gboolean resident);

This method is used to instruct the application that `plugin` must be kept in memory during the lifetime of the application. The default is to allow the application to unload `plugin` from the memory when no longer needed. If this method is invoked with a `resident` value of `TRUE` then the application will never try to unload `plugin` .

This method has no effect unless called from the `thunar_extension_initialize` method of the `plugin` .

#### Parameters

plugin | a ThunarxProviderPlugin. |
resident | `TRUE` to make `plugin` resident in memory. |

### thunarx_provider_plugin_register_type ()

    GType
    thunarx_provider_plugin_register_type (ThunarxProviderPlugin *plugin,
                                           GType type_parent,
                                           const gchar *type_name,
                                           const GTypeInfo *type_info,
                                           GTypeFlags type_flags);

Looks up or registers a type that is implemented with a particular type `plugin` . If a type with name `type_name` was previously registered, the GType identifier for the type is returned, otherwise the type is newly registered, and the resulting GType identifier returned.

When reregistering a type (typically because a module is unloaded then reloaded, and reinitialized), module and `type_parent` must be the same as they were previously.

#### Parameters

plugin | a ThunarxProviderPlugin. |
type_parent | the type for the parent class. |
type_name | name for the type. |
type_info | type information structure. |
type_flags | flags field providing details about the type. |

#### Returns

the new or existing type id.

### thunarx_provider_plugin_add_interface ()

    void
    thunarx_provider_plugin_add_interface (ThunarxProviderPlugin *plugin,
                                           GType instance_type,
                                           GType interface_type,
                                           const GInterfaceInfo *interface_info);

Registers an additional interface for a type, whose interface lives in the given type `plugin` . If the interface was already registered for the type in this `plugin` , nothing will be done.

As long as any instances of the type exist, the type `plugin` will not be unloaded.

#### Parameters

plugin | a ThunarxProviderPlugin. |
instance_type | type to which to add the interface. |
interface_type | interface type to add. |
interface_info | type information structure. |

### thunarx_provider_plugin_register_enum ()

    GType
    thunarx_provider_plugin_register_enum (ThunarxProviderPlugin *plugin,
                                           const gchar *name,
                                           const GEnumValue *const_static_values);

Looks up or registers an enumeration that is implemented with a particular type `plugin` . If a type with name `name` was previously registered, the GType identifier for the type is returned, otherwise the type is newly registered, and the resulting GType identifier returned.

As long as any instances of the type exist, the type `plugin` will not be unloaded.

#### Parameters

plugin | a ThunarxProviderPlugin. |
name | the name for the type. |
const_static_values | an array of GEnumValue structs for the possible enumeration values. The array is terminated by a struct with all members being `0`. |

#### Returns

the new or existing type id.

### thunarx_provider_plugin_register_flags ()

    GType
    thunarx_provider_plugin_register_flags
                                   (ThunarxProviderPlugin *plugin,
                                    const gchar *name,
                                    const GFlagsValue *const_static_values);

Looks up or registers a flags type that is implemented with a particular type `plugin` . If a type with name qname was previously registered, the GType identifier for the type is returned, otherwise the type is newly registered, and the resulting GType identifier returned.

As long as any instances of the type exist, the type `plugin` will not be unloaded.

#### Parameters

plugin | a ThunarxProviderPlugin. |
name | name for the type. |
const_static_values | an array of GFlagsValue structs for the possible flags values. The array is terminated by a struct with all members being `0`. |

#### Returns

the new or existing type id.

### THUNARX_DEFINE_TYPE()

    #define THUNARX_DEFINE_TYPE(TN, t_n, T_P)                         THUNARX_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, 0, {})

### THUNARX_DEFINE_TYPE_WITH_CODE()

    #define THUNARX_DEFINE_TYPE_WITH_CODE(TN, t_n, T_P, _C_)          THUNARX_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, 0, _C_)

### THUNARX_DEFINE_ABSTRACT_TYPE()

    #define THUNARX_DEFINE_ABSTRACT_TYPE(TN, t_n, T_P)                THUNARX_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT, {})

### THUNARX_DEFINE_ABSTRACT_TYPE_WITH_CODE()

    #define THUNARX_DEFINE_ABSTRACT_TYPE_WITH_CODE(TN, t_n, T_P, _C_) THUNARX_DEFINE_TYPE_EXTENDED (TN, t_n, T_P, G_TYPE_FLAG_ABSTRACT, _C_)

### THUNARX_DEFINE_TYPE_EXTENDED()

    #define             THUNARX_DEFINE_TYPE_EXTENDED(TypeName, type_name, TYPE_PARENT, flags, CODE)

### THUNARX_IMPLEMENT_INTERFACE()

    #define             THUNARX_IMPLEMENT_INTERFACE(TYPE_IFACE, iface_init)

## Types and Values

### ThunarxProviderPlugin

    typedef struct _ThunarxProviderPlugin ThunarxProviderPlugin;

### struct ThunarxProviderPluginIface

    struct ThunarxProviderPluginIface {
      gboolean (*get_resident)    (const ThunarxProviderPlugin *plugin);
      void     (*set_resident)    (ThunarxProviderPlugin       *plugin,
                                   gboolean                     resident);

      GType    (*register_type)   (ThunarxProviderPlugin       *plugin,
                                   GType                        type_parent,
                                   const gchar                 *type_name,
                                   const GTypeInfo             *type_info,
                                   GTypeFlags                   type_flags);
      void     (*add_interface)   (ThunarxProviderPlugin       *plugin,
                                   GType                        instance_type,
                                   GType                        interface_type,
                                   const GInterfaceInfo        *interface_info);
      GType    (*register_enum)   (ThunarxProviderPlugin       *plugin,
                                   const gchar                 *name,
                                   const GEnumValue            *const_static_values);
      GType    (*register_flags)  (ThunarxProviderPlugin       *plugin,
                                   const gchar                 *name,
                                   const GFlagsValue           *const_static_values);
    };

Interface with virtual methods implemented by the file manager and accessible from the extensions.

#### Members

`get_resident` () | see `thunarx_provider_plugin_get_resident()`. |
`set_resident` () | see `thunarx_provider_plugin_set_resident()`. |
`register_type` () | see `thunarx_provider_plugin_register_type()`. |
`add_interface` () | see `thunarx_provider_plugin_add_interface()`. |
`register_enum` () | see `thunarx_provider_plugin_register_enum()`. |
`register_flags` () | see `thunarx_provider_plugin_register_flags()`. |

## Property Details

### The `“resident”` property

      “resident”                 gboolean

Tells whether a plugin must reside in memory once loaded for the first time. See `thunarx_provider_plugin_get_resident()` and `thunarx_provider_plugin_set_resident()` for more details.

Owner: ThunarxProviderPlugin

Flags: Read / Write

Default value: FALSE