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