RBSource

RBSource — base class for sources

Synopsis

                    RBSource;
                    RBSourceClass;
enum                RBSourceEOFType;
#define             RB_SOURCE_ICON_SIZE
void                rb_source_notify_filter_changed     (RBSource *source);
void                rb_source_notify_status_changed     (RBSource *source);
void                rb_source_update_play_statistics    (RBSource *source,
                                                         RhythmDB *db,
                                                         RhythmDBEntry *entry);
void                rb_source_set_pixbuf                (RBSource *source,
                                                         GdkPixbuf *pixbuf);
void                rb_source_get_status                (RBSource *source,
                                                         char **text,
                                                         char **progress_text,
                                                         float *progress);
gboolean            rb_source_can_browse                (RBSource *source);
char*               rb_source_get_browser_key           (RBSource *source);
void                rb_source_browser_toggled           (RBSource *source,
                                                         gboolean enabled);
RBEntryView*        rb_source_get_entry_view            (RBSource *source);
GList*              rb_source_get_property_views        (RBSource *source);
gboolean            rb_source_can_rename                (RBSource *source);
gboolean            rb_source_can_search                (RBSource *source);
void                rb_source_search                    (RBSource *source,
                                                         const char *text);
void                rb_source_reset_filters             (RBSource *source);
GtkWidget*          rb_source_get_config_widget         (RBSource *source,
                                                         RBShellPreferences *prefs);
gboolean            rb_source_can_cut                   (RBSource *source);
gboolean            rb_source_can_delete                (RBSource *source);
gboolean            rb_source_can_move_to_trash         (RBSource *source);
gboolean            rb_source_can_copy                  (RBSource *source);
gboolean            rb_source_can_paste                 (RBSource *source);
gboolean            rb_source_can_add_to_queue          (RBSource *source);
gboolean            rb_source_can_show_properties       (RBSource *source);
GList*              rb_source_cut                       (RBSource *source);
GList*              rb_source_copy                      (RBSource *source);
void                rb_source_paste                     (RBSource *source,
                                                         GList *entries);
void                rb_source_delete                    (RBSource *source);
void                rb_source_add_to_queue              (RBSource *source,
                                                         RBSource *queue);
void                rb_source_move_to_trash             (RBSource *source);
void                rb_source_song_properties           (RBSource *source);
gboolean            rb_source_try_playlist              (RBSource *source);
guint               rb_source_want_uri                  (RBSource *source,
                                                         const char *uri);
gboolean            rb_source_uri_is_source             (RBSource *source,
                                                         const char *uri);
gboolean            rb_source_add_uri                   (RBSource *source,
                                                         const char *uri,
                                                         const char *title,
                                                         const char *genre);
gboolean            rb_source_can_pause                 (RBSource *source);
RBSourceEOFType     rb_source_handle_eos                (RBSource *source);
gboolean            rb_source_receive_drag              (RBSource *source,
                                                         GtkSelectionData *data);
gboolean            rb_source_show_popup                (RBSource *source);
void                rb_source_delete_thyself            (RBSource *source);
void                rb_source_activate                  (RBSource *source);
void                rb_source_deactivate                (RBSource *source);
GList*              rb_source_get_ui_actions            (RBSource *source);
GList*              rb_source_get_search_actions        (RBSource *source);
GList*              rb_source_gather_selected_properties
                                                        (RBSource *source,
                                                         RhythmDBPropType prop);
void                rb_source_set_hidden_when_empty     (RBSource *source,
                                                         gboolean hidden);

Object Hierarchy

  GObject
   +----GInitiallyUnowned
         +----GtkObject
               +----GtkWidget
                     +----GtkContainer
                           +----GtkBox
                                 +----GtkHBox
                                       +----RBSource
                                             +----RBPlaylistSource
                                             +----RBBrowserSource
                                             +----RBImportErrorsSource
                                             +----RBMissingFilesSource

Implemented Interfaces

RBSource implements AtkImplementorIface and GtkBuildable.

Properties

  "base-query-model"         RhythmDBQueryModel*   : Read
  "entry-type"               RhythmDBEntryType*    : Read / Write / Construct Only
  "hidden-when-empty"        gboolean              : Read / Write
  "icon"                     GdkPixbuf*            : Read / Write
  "name"                     gchar*                : Read / Write
  "play-order"               RBPlayOrder*          : Read
  "plugin"                   RBPlugin*             : Read / Write
  "query-model"              RhythmDBQueryModel*   : Read / Write
  "shell"                    RBShell*              : Read / Write / Construct Only
  "source-group"             RBSourceGroup*        : Read / Write / Construct Only
  "ui-manager"               GtkUIManager*         : Read
  "visibility"               gboolean              : Read / Write

Signals

  "deleted"                                        : Run Last
  "filter-changed"                                 : Run Last
  "status-changed"                                 : Run Last

Description

This class provides methods for requesting information about the UI capabilities of the source, and defines the expectations that apply to all sources - that they will provide RBEntryView and RhythmDBQueryModel objects, mostly.

Many of the methods on this class come in can_do_x and do_x pairs. When can_do_x always returns FALSE, the class does not need to implement the do_x method.

Useful subclasses include RBBrowserSource, which includes a RBLibraryBrowser and takes care of constructing an RBEntryView too; RBRemovableMediaSource, which takes care of many aspects of implementing a source that represents a removable device; and RBPlaylistSource, which provides functionality for playlist-like sources.

Details

RBSource

typedef struct _RBSource RBSource;


RBSourceClass

typedef struct {
	GtkHBoxClass parent;

	/* signals */
	void (*status_changed)	(RBSource *source);
	void (*filter_changed)	(RBSource *source);
	void (*deleted)		(RBSource *source);
	void (*artistalbum_changed)	(RBSource *source);

	/* methods */
	void		(*impl_get_status)	(RBSource *source, char **text, char **progress_text, float *progress);

	gboolean	(*impl_can_browse)	(RBSource *source);
	char *		(*impl_get_browser_key)	(RBSource *source);
	void		(*impl_browser_toggled)	(RBSource *source, gboolean enabled);

	RBEntryView *	(*impl_get_entry_view)	(RBSource *source);
	GList *		(*impl_get_property_views)	(RBSource *source);

	gboolean	(*impl_can_rename)	(RBSource *source);

	gboolean	(*impl_can_search)	(RBSource *source);

	void		(*impl_search)		(RBSource *source, const char *text);
	void		(*impl_reset_filters)	(RBSource *source);
	GtkWidget *	(*impl_get_config_widget)(RBSource *source, RBShellPreferences *prefs);

	gboolean	(*impl_can_cut)		(RBSource *source);
	gboolean	(*impl_can_delete)	(RBSource *source);
	gboolean	(*impl_can_move_to_trash) (RBSource *source);
	gboolean	(*impl_can_copy)	(RBSource *source);
	gboolean	(*impl_can_paste)	(RBSource *source);
	gboolean	(*impl_can_add_to_queue)(RBSource *source);

	GList *		(*impl_cut)		(RBSource *source);
	GList *		(*impl_copy)		(RBSource *source);
	void		(*impl_paste)		(RBSource *source, GList *entries);
	void		(*impl_delete)		(RBSource *source);
	void		(*impl_add_to_queue)	(RBSource *source, RBSource *queue);
	void		(*impl_move_to_trash)	(RBSource *source);

	void		(*impl_song_properties)	(RBSource *source);

	gboolean	(*impl_try_playlist)	(RBSource *source);
	guint		(*impl_want_uri)	(RBSource *source, const char *uri);
	gboolean	(*impl_add_uri)		(RBSource *source, const char *uri, const char *title, const char *genre);
	gboolean	(*impl_uri_is_source)	(RBSource *source, const char *uri);

	gboolean	(*impl_can_pause)	(RBSource *source);
	RBSourceEOFType	(*impl_handle_eos)	(RBSource *source);

	gboolean	(*impl_have_url)	(RBSource *source);
	gboolean	(*impl_receive_drag)	(RBSource *source, GtkSelectionData *data);
	gboolean	(*impl_show_popup)	(RBSource *source);

	void		(*impl_delete_thyself)	(RBSource *source);
	void		(*impl_activate)	(RBSource *source);
	void		(*impl_deactivate)	(RBSource *source);
	GList *		(*impl_get_ui_actions)	(RBSource *source);
	GList *		(*impl_get_search_actions) (RBSource *source);
} RBSourceClass;


enum RBSourceEOFType

typedef enum {
	RB_SOURCE_EOF_ERROR,
	RB_SOURCE_EOF_STOP,
	RB_SOURCE_EOF_RETRY,
	RB_SOURCE_EOF_NEXT,
} RBSourceEOFType;


RB_SOURCE_ICON_SIZE

#define RB_SOURCE_ICON_SIZE	GTK_ICON_SIZE_LARGE_TOOLBAR


rb_source_notify_filter_changed ()

void                rb_source_notify_filter_changed     (RBSource *source);

Source implementations call this when their filter state changes

source :

a RBSource

rb_source_notify_status_changed ()

void                rb_source_notify_status_changed     (RBSource *source);

Source implementations call this when their status bar information changes.

source :

a RBSource

rb_source_update_play_statistics ()

void                rb_source_update_play_statistics    (RBSource *source,
                                                         RhythmDB *db,
                                                         RhythmDBEntry *entry);

Updates play count and play time statistics for a database entry. Sources containing entries that do not normally reach EOS should call this for an entry when it is no longer being played.

source :

a RBSource

db :

the RhythmDB instance

entry :

the RhythmDBEntry to update

rb_source_set_pixbuf ()

void                rb_source_set_pixbuf                (RBSource *source,
                                                         GdkPixbuf *pixbuf);

Sets the pixbuf for the source.

source :

a RBSource

pixbuf :

new GdkPixbuf for the source

rb_source_get_status ()

void                rb_source_get_status                (RBSource *source,
                                                         char **text,
                                                         char **progress_text,
                                                         float *progress);

Retrieves the details to display in the status bar for the source. If the progress value returned is less than zero, the progress bar will pulse. If the progress value is greater than or equal to 1, the progress bar will be hidden.

source :

a RBSource

text :

holds the returned status text (allocated)

progress_text :

holds the returned text for the progress bar (allocated)

progress :

holds the progress value

rb_source_can_browse ()

gboolean            rb_source_can_browse                (RBSource *source);

source :

a RBSource

Returns :

TRUE if this source has a browser

rb_source_get_browser_key ()

char*               rb_source_get_browser_key           (RBSource *source);

source :

a RBSource

Returns :

the GConf key that determines browser visibility for this source (allocated)

rb_source_browser_toggled ()

void                rb_source_browser_toggled           (RBSource *source,
                                                         gboolean enabled);

Called when the visibility of the browser changes.

source :

a RBSource

enabled :

TRUE if the browser should be visible

rb_source_get_entry_view ()

RBEntryView*        rb_source_get_entry_view            (RBSource *source);

source :

a RBSource

Returns :

the RBEntryView instance for the source

rb_source_get_property_views ()

GList*              rb_source_get_property_views        (RBSource *source);

source :

a RBSource

Returns :

a list containing the RBPropertyViews that make up the browser for this source, if any.

rb_source_can_rename ()

gboolean            rb_source_can_rename                (RBSource *source);

source :

a RBSource.

Returns :

TRUE if this source can be renamed

rb_source_can_search ()

gboolean            rb_source_can_search                (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source can be searched using the search box

rb_source_search ()

void                rb_source_search                    (RBSource *source,
                                                         const char *text);

Updates the source with new search text. The source should recreate the database query that feeds into the browser (if any).

source :

a RBSource

text :

new search text

rb_source_reset_filters ()

void                rb_source_reset_filters             (RBSource *source);

Clears all filters (browser selections, etc.) in this source.

source :

a RBSource

rb_source_get_config_widget ()

GtkWidget*          rb_source_get_config_widget         (RBSource *source,
                                                         RBShellPreferences *prefs);

Source implementations can use this to return an optional configuration widget. The widget will be displayed in a page in the preferences dialog.

source :

a RBSource

prefs :

the RBShellPreferences object

Returns :

configuration widget

rb_source_can_cut ()

gboolean            rb_source_can_cut                   (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source supports the typical cut (as in cut-and-paste) operation.

rb_source_can_delete ()

gboolean            rb_source_can_delete                (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source allows the user to delete a selected set of entries.

rb_source_can_move_to_trash ()

gboolean            rb_source_can_move_to_trash         (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source allows the user to trash the files backing a selected set of entries.

rb_source_can_copy ()

gboolean            rb_source_can_copy                  (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source supports the copy part of a copy-and-paste operation.

rb_source_can_paste ()

gboolean            rb_source_can_paste                 (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source supports the typical paste (as in cut-and-paste) operation.

rb_source_can_add_to_queue ()

gboolean            rb_source_can_add_to_queue          (RBSource *source);

source :

a RBSource

Returns :

TRUE if this source can add the current selected set of entries to the play queue

rb_source_can_show_properties ()

gboolean            rb_source_can_show_properties       (RBSource *source);

source :

a RBSource

Returns :

TRUE if the source can display a properties window for the currently selected entry (or set of entries)

rb_source_cut ()

GList*              rb_source_cut                       (RBSource *source);

Removes the currently selected entries from the source and returns them so they can be pasted into another source.

source :

a RBSource

Returns :

a list of RhythmDBEntry objects cut from the source.

rb_source_copy ()

GList*              rb_source_copy                      (RBSource *source);

source :

a RBSource

Returns :

a list containing the currently selected entries from the source.

rb_source_paste ()

void                rb_source_paste                     (RBSource *source,
                                                         GList *entries);

Adds a list of entries previously cut or copied from another source.

source :

a RBSource

entries :

a list of RhythmDBEntry objects to paste in

rb_source_delete ()

void                rb_source_delete                    (RBSource *source);

Deletes the currently selected entries from the source.

source :

a RBSource

rb_source_add_to_queue ()

void                rb_source_add_to_queue              (RBSource *source,
                                                         RBSource *queue);

Adds the currently selected entries to the end of the play queue.

source :

a RBSource

queue :

the RBSource for the play queue

rb_source_move_to_trash ()

void                rb_source_move_to_trash             (RBSource *source);

Trashes the files backing the currently selected set of entries. In general, this should use rhythmdb_entry_move_to_trash to perform the actual trash operation.

source :

a RBSource

rb_source_song_properties ()

void                rb_source_song_properties           (RBSource *source);

Displays a properties window for the currently selected entries.

source :

a RBSource

rb_source_try_playlist ()

gboolean            rb_source_try_playlist              (RBSource *source);

source :

a RBSource

Returns :

TRUE if the playback URIs for entries in the source should be parsed as playlists, rather than just played.

rb_source_want_uri ()

guint               rb_source_want_uri                  (RBSource *source,
                                                         const char *uri);

Returns an indication of how much the source wants to handle the specified URI. 100 is the highest usual value, and should only be used when the URI can only be associated with this source. 0 should be used when the URI does not match the source at all.

source :

a RBSource

uri :

a URI for the source to consider

Returns :

value from 0 to 100 indicating how much the source wants this URI.

rb_source_uri_is_source ()

gboolean            rb_source_uri_is_source             (RBSource *source,
                                                         const char *uri);

Checks if the URI matches the source itself. A source should return TRUE here if the URI points to the device that the source represents, for example.

source :

a RBSource

uri :

a URI for the source to consider

Returns :

TRUE if the URI identifies the source itself.

rb_source_add_uri ()

gboolean            rb_source_add_uri                   (RBSource *source,
                                                         const char *uri,
                                                         const char *title,
                                                         const char *genre);

Adds an entry corresponding to the URI to the source. The title and genre parameters are not really used.

source :

a RBSource

uri :

a URI to add

title :

theoretically, the title of the entity the URI points to

genre :

theoretically, the genre of the entity the URI points to

Returns :

TRUE if the URI was successfully added to the source

rb_source_can_pause ()

gboolean            rb_source_can_pause                 (RBSource *source);

source :

a RBSource

Returns :

TRUE if playback of entries from the source can be paused.

rb_source_handle_eos ()

RBSourceEOFType     rb_source_handle_eos                (RBSource *source);

source :

a RBSource

Returns :

how EOS events should be handled for entries from this source

rb_source_receive_drag ()

gboolean            rb_source_receive_drag              (RBSource *source,
                                                         GtkSelectionData *data);

This is called when the user drags something to the source. Depending on the drag data type, the data might be a list of RhythmDBEntry objects, a list of URIs, or a list of album or artist or genre names.

source :

a RBSource

data :

the selection data

Returns :

TRUE if the source accepted the drag data

rb_source_show_popup ()

gboolean            rb_source_show_popup                (RBSource *source);

Called when the user performs an action (such as right-clicking) that should result in a popup menu being displayed for the source.

source :

a RBSource

Returns :

TRUE if the source managed to display a popup

rb_source_delete_thyself ()

void                rb_source_delete_thyself            (RBSource *source);

This is called when the source should delete itself. The 'deleted' signal will be emitted, which removes the source from the source list. This will not actually dispose of the source object, so reference counting must still be handled correctly.

source :

a RBSource

rb_source_activate ()

void                rb_source_activate                  (RBSource *source);

Called when the source is selected in the source list.

source :

a RBSource

rb_source_deactivate ()

void                rb_source_deactivate                (RBSource *source);

Called when the source is deselected in the source list.

source :

a RBSource

rb_source_get_ui_actions ()

GList*              rb_source_get_ui_actions            (RBSource *source);

Returns a list of UI action names. Items for these actions will be added to the toolbar.

source :

a RBSource

Returns :

list of action names

rb_source_get_search_actions ()

GList*              rb_source_get_search_actions        (RBSource *source);

Returns a list of UI action names. Buttons for these actions will be added to the search bar. The source must identify the selected search action when constructing a database query for searching

source :

a RBSource

Returns :

list of search actions

rb_source_gather_selected_properties ()

GList*              rb_source_gather_selected_properties
                                                        (RBSource *source,
                                                         RhythmDBPropType prop);

Returns a list containing the values of the specified property from the selected entries in the source. This is used to implement the 'browse this artist' (etc.) actions.

source :

a RBSource

prop :

property for which to gather selection

Returns :

list of property values

rb_source_set_hidden_when_empty ()

void                rb_source_set_hidden_when_empty     (RBSource *source,
                                                         gboolean hidden);

source :

a RBSource

hidden :

if TRUE, the source should not be displayed in the source list when there are no entries in it

Property Details

The "base-query-model" property

  "base-query-model"         RhythmDBQueryModel*   : Read

The unfiltered query model for the source, containing all entries in the source. Source classes should override this if they perform filtering based on the search box or a browser.


The "entry-type" property

  "entry-type"               RhythmDBEntryType*    : Read / Write / Construct Only

Entry type for entries in this source.


The "hidden-when-empty" property

  "hidden-when-empty"        gboolean              : Read / Write

If TRUE, the source will not be displayed in the source list when it contains no entries.

Default value: FALSE


The "icon" property

  "icon"                     GdkPixbuf*            : Read / Write

Icon to display in the source list


The "name" property

  "name"                     gchar*                : Read / Write

Source name as displayed in the source list

Default value: NULL


The "play-order" property

  "play-order"               RBPlayOrder*          : Read

If the source provides its own play order, it can override this property.


The "plugin" property

  "plugin"                   RBPlugin*             : Read / Write

The plugin that created this source.


The "query-model" property

  "query-model"              RhythmDBQueryModel*   : Read / Write

The current query model for the source. This is used in various places, including the play order, to find the set of entries within the source.


The "shell" property

  "shell"                    RBShell*              : Read / Write / Construct Only

The rhythmbox shell object


The "source-group" property

  "source-group"             RBSourceGroup*        : Read / Write / Construct Only

Source group in which to display the source


The "ui-manager" property

  "ui-manager"               GtkUIManager*         : Read

The Gtk UIManager object


The "visibility" property

  "visibility"               gboolean              : Read / Write

If FALSE, the source will not be displayed in the source list

Default value: TRUE

Signal Details

The "deleted" signal

void                user_function                      (RBSource *source,
                                                        gpointer  user_data)      : Run Last

Emitted when the source is being deleted.

source :

the RBSource

user_data :

user data set when the signal handler was connected.

The "filter-changed" signal

void                user_function                      (RBSource *rbsource,
                                                        gpointer  user_data)      : Run Last

rbsource :

the object which received the signal.

user_data :

user data set when the signal handler was connected.

The "status-changed" signal

void                user_function                      (RBSource *rbsource,
                                                        gpointer  user_data)      : Run Last

rbsource :

the object which received the signal.

user_data :

user data set when the signal handler was connected.