GtkSourceFileLoader: libgedit-gtksourceview 300 Reference Manual

## GtkSourceFileLoader GtkSourceFileLoader — Load a file into a GtkSourceBuffer |

## Functions

GtkSourceFileLoader * | gtk_source_file_loader_new ()
GtkSourceFileLoader * | gtk_source_file_loader_new_from_stream ()
void | gtk_source_file_loader_set_candidate_encodings ()
guint64 | gtk_source_file_loader_get_max_size ()
void | gtk_source_file_loader_set_max_size ()
GtkSourceBuffer * | gtk_source_file_loader_get_buffer ()
GtkSourceFile * | gtk_source_file_loader_get_file ()
GFile * | gtk_source_file_loader_get_location ()
GInputStream * | gtk_source_file_loader_get_input_stream ()
void | gtk_source_file_loader_load_async ()
gboolean | gtk_source_file_loader_load_finish ()
const GtkSourceEncoding * | gtk_source_file_loader_get_encoding ()
GtkSourceNewlineType | gtk_source_file_loader_get_newline_type ()
GtkSourceCompressionType | gtk_source_file_loader_get_compression_type ()

## Properties

GtkSourceBuffer * | buffer | Read / Write / Construct Only
GtkSourceFile * | file | Read / Write / Construct Only
GInputStream * | input-stream | Read / Write / Construct Only
GFile * | location | Read / Write / Construct Only
guint64 | max-size | Read / Write / Construct

## Types and Values

struct | GtkSourceFileLoader
#define | GTK_SOURCE_FILE_LOADER_ERROR
enum | GtkSourceFileLoaderError

## Object Hierarchy

        GEnum
        ╰── GtkSourceFileLoaderError
        GObject
        ╰── GtkSourceFileLoader

## Includes

    #include <gtksourceview/gtksource.h>

## Description

A GtkSourceFileLoader object permits to load the contents of a GFile or a GInputStream into a GtkSourceBuffer.

A file loader should be used only for one load operation, including errors handling. If an error occurs, you can reconfigure the loader and relaunch the operation with `gtk_source_file_loader_load_async()`.

Running a GtkSourceFileLoader is an undoable action for the GtkSourceBuffer. That is, `gtk_source_buffer_begin_not_undoable_action()` and `gtk_source_buffer_end_not_undoable_action()` are called, which delete the undo/redo history.

After a file loading, the buffer is reset to the contents provided by the GFile or GInputStream, so the buffer is set as “unmodified”, that is, `gtk_text_buffer_set_modified()` is called with `FALSE`. If the contents isn't saved somewhere (for example if you load from stdin), then you should probably call `gtk_text_buffer_set_modified()` with `TRUE` after calling `gtk_source_file_loader_load_finish()`.

## Functions

### gtk_source_file_loader_new ()

    GtkSourceFileLoader *
    gtk_source_file_loader_new (GtkSourceBuffer *buffer,
                                GtkSourceFile *file);

Creates a new GtkSourceFileLoader object. The contents is read from the GtkSourceFile's location. If not already done, call `gtk_source_file_set_location()` before calling this constructor. The previous location is anyway not needed, because as soon as the file loading begins, the `buffer` is emptied.

#### Parameters

buffer | the GtkSourceBuffer to load the contents into. |
file | the GtkSourceFile. |

#### Returns

a new GtkSourceFileLoader object.

Since: 3.14

### gtk_source_file_loader_new_from_stream ()

    GtkSourceFileLoader *
    gtk_source_file_loader_new_from_stream
                                   (GtkSourceBuffer *buffer,
                                    GtkSourceFile *file,
                                    GInputStream *stream);

Creates a new GtkSourceFileLoader object. The contents is read from `stream` .

#### Parameters

buffer | the GtkSourceBuffer to load the contents into. |
file | the GtkSourceFile. |
stream | the GInputStream to load, e.g. stdin. |

#### Returns

a new GtkSourceFileLoader object.

Since: 3.14

### gtk_source_file_loader_set_candidate_encodings ()

    void
    gtk_source_file_loader_set_candidate_encodings
                                   (GtkSourceFileLoader *loader,
                                    GSList *candidate_encodings);

Sets the candidate encodings for the file loading. The encodings are tried in the same order as the list.

For convenience, `candidate_encodings` can contain duplicates. Only the first occurrence of a duplicated encoding is kept in the list.

If you don't call this function, the default list will be (in that order):

1. If set, the GtkSourceFile's encoding as returned by `gtk_source_file_get_encoding()`.

2. Plus the default candidates as returned by `gtk_source_encoding_get_default_candidates()`.

#### Parameters

loader | a GtkSourceFileLoader. |
candidate_encodings | a list of GtkSourceEncoding's. | [element-type GtkSourceEncoding]

Since: 3.14

### gtk_source_file_loader_get_max_size ()

    guint64
    gtk_source_file_loader_get_max_size (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the value of the “max-size” property.

Since: 299.6

### gtk_source_file_loader_set_max_size ()

    void
    gtk_source_file_loader_set_max_size (GtkSourceFileLoader *loader,
                                         guint64 max_size);

Sets the “max-size” property.

#### Parameters

loader | a GtkSourceFileLoader. |
max_size | the new value. |

Since: 299.6

### gtk_source_file_loader_get_buffer ()

    GtkSourceBuffer *
    gtk_source_file_loader_get_buffer (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the value of the “buffer” property.

[transfer none][nullable]

Since: 3.14

### gtk_source_file_loader_get_file ()

    GtkSourceFile *
    gtk_source_file_loader_get_file (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the value of the “file” property.

[transfer none][nullable]

Since: 3.14

### gtk_source_file_loader_get_location ()

    GFile *
    gtk_source_file_loader_get_location (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the value of the “location” property.

[transfer none][nullable]

Since: 3.14

### gtk_source_file_loader_get_input_stream ()

    GInputStream *
    gtk_source_file_loader_get_input_stream
                                   (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the value of the “input-stream” property.

[transfer none][nullable]

Since: 3.14

### gtk_source_file_loader_load_async ()

    void
    gtk_source_file_loader_load_async (GtkSourceFileLoader *loader,
                                       gint io_priority,
                                       GCancellable *cancellable,
                                       GFileProgressCallback progress_callback,
                                       gpointer progress_callback_data,
                                       GDestroyNotify progress_callback_notify,
                                       GAsyncReadyCallback callback,
                                       gpointer user_data);

Loads asynchronously the file or input stream contents into the GtkSourceBuffer. See the GAsyncResult documentation to know how to use this function.

#### Parameters

loader | a GtkSourceFileLoader. |
io_priority | the I/O priority of the request. E.g. `G_PRIORITY_LOW`, `G_PRIORITY_DEFAULT` or `G_PRIORITY_HIGH`. |
cancellable | optional GCancellable object, `NULL` to ignore. | [nullable]
progress_callback | function to call back with progress information, or `NULL` if progress information is not needed. | [scope notified][nullable]
progress_callback_data | user data to pass to `progress_callback` . |
progress_callback_notify | function to call on `progress_callback_data` when the `progress_callback` is no longer needed, or `NULL`. | [nullable]
callback | a GAsyncReadyCallback to call when the request is satisfied. | [scope async]
user_data | user data to pass to `callback` . |

Since: 3.14

### gtk_source_file_loader_load_finish ()

    gboolean
    gtk_source_file_loader_load_finish (GtkSourceFileLoader *loader,
                                        GAsyncResult *result,
                                        GError **error);

Finishes a file loading started with `gtk_source_file_loader_load_async()`.

If the contents has been loaded, the following GtkSourceFile properties will be updated: the location, the encoding, the newline type and the compression type.

#### Parameters

loader | a GtkSourceFileLoader. |
result | a GAsyncResult. |
error | a GError, or `NULL`. |

#### Returns

whether the contents has been loaded successfully.

Since: 3.14

### gtk_source_file_loader_get_encoding ()

    const GtkSourceEncoding *
    gtk_source_file_loader_get_encoding (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the detected encoding.

[transfer none]

Since: 3.14

### gtk_source_file_loader_get_newline_type ()

    GtkSourceNewlineType
    gtk_source_file_loader_get_newline_type
                                   (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the detected newline type.

Since: 3.14

### gtk_source_file_loader_get_compression_type ()

    GtkSourceCompressionType
    gtk_source_file_loader_get_compression_type
                                   (GtkSourceFileLoader *loader);

#### Parameters

loader | a GtkSourceFileLoader. |

#### Returns

the detected compression type.

Since: 3.14

## Types and Values

### struct GtkSourceFileLoader

    struct GtkSourceFileLoader;

### GTK_SOURCE_FILE_LOADER_ERROR

    #define GTK_SOURCE_FILE_LOADER_ERROR (gtk_source_file_loader_error_quark())

### enum GtkSourceFileLoaderError

An error code used with the `GTK_SOURCE_FILE_LOADER_ERROR` domain.

#### Members

GTK_SOURCE_FILE_LOADER_ERROR_TOO_BIG | The file is too big. |
GTK_SOURCE_FILE_LOADER_ERROR_ENCODING_AUTO_DETECTION_FAILED | It is not possible to detect the encoding automatically. |
GTK_SOURCE_FILE_LOADER_ERROR_CONVERSION_FALLBACK | There was an encoding conversion error and it was needed to use a fallback character. |

## Property Details

### The `“buffer”` property

      “buffer”                   GtkSourceBuffer *

The GtkSourceBuffer to load the contents into. The GtkSourceFileLoader object has a weak reference to the buffer.

Owner: GtkSourceFileLoader

Flags: Read / Write / Construct Only

Since: 3.14

### The `“file”` property

      “file”                     GtkSourceFile *

The GtkSourceFile. The GtkSourceFileLoader object has a weak reference to the file.

Owner: GtkSourceFileLoader

Flags: Read / Write / Construct Only

Since: 3.14

### The `“input-stream”` property

      “input-stream”             GInputStream *

The GInputStream to load. Useful for reading stdin. If this property is set, the “location” property is ignored.

Owner: GtkSourceFileLoader

Flags: Read / Write / Construct Only

Since: 3.14

### The `“location”` property

      “location”                 GFile *

The GFile to load, or `NULL` to load the contents from the “input-stream”.

If the “input-stream” is `NULL`, by default the location is taken from the GtkSourceFile at construction time.

Owner: GtkSourceFileLoader

Flags: Read / Write / Construct Only

Since: 3.14

### The `“max-size”` property

      “max-size”                 guint64

The maximum number of bytes to read.

If the content to load exceeds the limit, `GTK_SOURCE_FILE_LOADER_ERROR_TOO_BIG` is returned.

Owner: GtkSourceFileLoader

Flags: Read / Write / Construct

Default value: 200000000

Since: 299.6

## See Also

GtkSourceFile, GtkSourceFileSaver