efl/legacy/elementary/src/lib/elc_fileselector.h

313 lines
9.7 KiB
C

/**
* @defgroup Fileselector File Selector
*
* @image html img/widget/fileselector/preview-00.png
* @image latex img/widget/fileselector/preview-00.eps
*
* A file selector is a widget that allows a user to navigate
* through a file system, reporting file selections back via its
* API.
*
* It contains shortcut buttons for home directory (@c ~) and to
* jump one directory upwards (..), as well as cancel/ok buttons to
* confirm/cancel a given selection. After either one of those two
* former actions, the file selector will issue its @c "done" smart
* callback.
*
* There's a text entry on it, too, showing the name of the current
* selection. There's the possibility of making it editable, so it
* is useful on file saving dialogs on applications, where one
* gives a file name to save contents to, in a given directory in
* the system. This custom file name will be reported on the @c
* "done" smart callback (explained in sequence).
*
* Finally, it has a view to display file system items into in two
* possible forms:
* - list
* - grid
*
* If Elementary is built with support of the Ethumb thumbnailing
* library, the second form of view will display preview thumbnails
* of files which it supports.
*
* Smart callbacks one can register to:
*
* - @c "selected" - the user has clicked on a file (when not in
* folders-only mode) or directory (when in folders-only mode)
* - @c "directory,open" - the list has been populated with new
* content (@c event_info is a pointer to the directory's
* path, a @b stringshared string)
* - @c "done" - the user has clicked on the "ok" or "cancel"
* buttons (@c event_info is a pointer to the selection's
* path, a @b stringshared string)
*
* Here is an example on its usage:
* @li @ref fileselector_example
*/
/**
* @addtogroup Fileselector
* @{
*/
/**
* Defines how a file selector widget is to layout its contents
* (file system entries).
*/
typedef enum
{
ELM_FILESELECTOR_LIST = 0, /**< layout as a list */
ELM_FILESELECTOR_GRID, /**< layout as a grid */
ELM_FILESELECTOR_LAST /**< sentinel (helper) value, not used */
} Elm_Fileselector_Mode;
/**
* Add a new file selector widget to the given parent Elementary
* (container) object
*
* @param parent The parent object
* @return a new file selector widget handle or @c NULL, on errors
*
* This function inserts a new file selector widget on the canvas.
*
* @ingroup Fileselector
*/
EAPI Evas_Object *elm_fileselector_add(Evas_Object *parent);
/**
* Enable/disable the file name entry box where the user can type
* in a name for a file, in a given file selector widget
*
* @param obj The file selector object
* @param is_save @c EINA_TRUE to make the file selector a "saving
* dialog", @c EINA_FALSE otherwise
*
* Having the entry editable is useful on file saving dialogs on
* applications, where one gives a file name to save contents to,
* in a given directory in the system. This custom file name will
* be reported on the @c "done" smart callback.
*
* @see elm_fileselector_is_save_get()
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_is_save_set(Evas_Object *obj, Eina_Bool is_save);
/**
* Get whether the given file selector is in "saving dialog" mode
*
* @param obj The file selector object
* @return @c EINA_TRUE, if the file selector is in "saving dialog"
* mode, @c EINA_FALSE otherwise (and on errors)
*
* @see elm_fileselector_is_save_set() for more details
*
* @ingroup Fileselector
*/
EAPI Eina_Bool elm_fileselector_is_save_get(const Evas_Object *obj);
/**
* Enable/disable folder-only view for a given file selector widget
*
* @param obj The file selector object
* @param only @c EINA_TRUE to make @p obj only display
* directories, @c EINA_FALSE to make files to be displayed in it
* too
*
* If enabled, the widget's view will only display folder items,
* naturally.
*
* @see elm_fileselector_folder_only_get()
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_folder_only_set(Evas_Object *obj, Eina_Bool only);
/**
* Get whether folder-only view is set for a given file selector
* widget
*
* @param obj The file selector object
* @return only @c EINA_TRUE if @p obj is only displaying
* directories, @c EINA_FALSE if files are being displayed in it
* too (and on errors)
*
* @see elm_fileselector_folder_only_get()
*
* @ingroup Fileselector
*/
EAPI Eina_Bool elm_fileselector_folder_only_get(const Evas_Object *obj);
/**
* Enable/disable the "ok" and "cancel" buttons on a given file
* selector widget
*
* @param obj The file selector object
* @param buttons @c EINA_TRUE to show buttons, @c EINA_FALSE to hide.
*
* @note A file selector without those buttons will never emit the
* @c "done" smart event, and is only usable if one is just hooking
* to the other two events.
*
* @see elm_fileselector_buttons_ok_cancel_get()
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_buttons_ok_cancel_set(Evas_Object *obj, Eina_Bool buttons);
/**
* Get whether the "ok" and "cancel" buttons on a given file
* selector widget are being shown.
*
* @param obj The file selector object
* @return @c EINA_TRUE if they are being shown, @c EINA_FALSE
* otherwise (and on errors)
*
* @see elm_fileselector_buttons_ok_cancel_set() for more details
*
* @ingroup Fileselector
*/
EAPI Eina_Bool elm_fileselector_buttons_ok_cancel_get(const Evas_Object *obj);
/**
* Enable/disable a tree view in the given file selector widget,
* <b>if it's in @c #ELM_FILESELECTOR_LIST mode</b>
*
* @param obj The file selector object
* @param expand @c EINA_TRUE to enable tree view, @c EINA_FALSE to
* disable
*
* In a tree view, arrows are created on the sides of directories,
* allowing them to expand in place.
*
* @note If it's in other mode, the changes made by this function
* will only be visible when one switches back to "list" mode.
*
* @see elm_fileselector_expandable_get()
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_expandable_set(Evas_Object *obj, Eina_Bool expand);
/**
* Get whether tree view is enabled for the given file selector
* widget
*
* @param obj The file selector object
* @return @c EINA_TRUE if @p obj is in tree view, @c EINA_FALSE
* otherwise (and or errors)
*
* @see elm_fileselector_expandable_set() for more details
*
* @ingroup Fileselector
*/
EAPI Eina_Bool elm_fileselector_expandable_get(const Evas_Object *obj);
/**
* Set, programmatically, the @b directory that a given file
* selector widget will display contents from
*
* @param obj The file selector object
* @param path The path to display in @p obj
*
* This will change the @b directory that @p obj is displaying. It
* will also clear the text entry area on the @p obj object, which
* displays select files' names.
*
* @see elm_fileselector_path_get()
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_path_set(Evas_Object *obj, const char *path);
/**
* Get the parent directory's path that a given file selector
* widget is displaying
*
* @param obj The file selector object
* @return The (full) path of the directory the file selector is
* displaying, a @b stringshared string
*
* @see elm_fileselector_path_set()
*
* @ingroup Fileselector
*/
EAPI const char *elm_fileselector_path_get(const Evas_Object *obj);
/**
* Set, programmatically, the currently selected file/directory in
* the given file selector widget
*
* @param obj The file selector object
* @param path The (full) path to a file or directory
* @return @c EINA_TRUE on success, @c EINA_FALSE on failure. The
* latter case occurs if the directory or file pointed to do not
* exist.
*
* @see elm_fileselector_selected_get()
*
* @ingroup Fileselector
*/
EAPI Eina_Bool elm_fileselector_selected_set(Evas_Object *obj, const char *path);
/**
* Get the currently selected item's (full) path, in the given file
* selector widget
*
* @param obj The file selector object
* @return The absolute path of the selected item, a @b
* stringshared string
*
* @note Custom editions on @p obj object's text entry, if made,
* will appear on the return string of this function, naturally.
*
* @see elm_fileselector_selected_set() for more details
*
* @ingroup Fileselector
*/
EAPI const char *elm_fileselector_selected_get(const Evas_Object *obj);
/**
* Set the mode in which a given file selector widget will display
* (layout) file system entries in its view
*
* @param obj The file selector object
* @param mode The mode of the fileselector, being it one of
* #ELM_FILESELECTOR_LIST (default) or #ELM_FILESELECTOR_GRID. The
* first one, naturally, will display the files in a list. The
* latter will make the widget to display its entries in a grid
* form.
*
* @note By using elm_fileselector_expandable_set(), the user may
* trigger a tree view for that list.
*
* @note If Elementary is built with support of the Ethumb
* thumbnailing library, the second form of view will display
* preview thumbnails of files which it supports. You must have
* elm_need_ethumb() called in your Elementary for thumbnailing to
* work, though.
*
* @see elm_fileselector_expandable_set().
* @see elm_fileselector_mode_get().
*
* @ingroup Fileselector
*/
EAPI void elm_fileselector_mode_set(Evas_Object *obj, Elm_Fileselector_Mode mode);
/**
* Get the mode in which a given file selector widget is displaying
* (layouting) file system entries in its view
*
* @param obj The fileselector object
* @return The mode in which the fileselector is at
*
* @see elm_fileselector_mode_set() for more details
*
* @ingroup Fileselector
*/
EAPI Elm_Fileselector_Mode elm_fileselector_mode_get(const Evas_Object *obj);
/**
* @}
*/