3 Autosave

▼ |  | Framework: Racket GUI Application Framework

1 | Framework Libraries Overview
2 | Application
3 | Autosave
4 | Canvas
5 | Color Model
6 | Color Prefs
7 | Color
8 | Comment Box
9 | Decorated Editor Snip
10 | Editor Snip
11 | Editor
12 | Exit
13 | Finder
14 | Frame
15 | Group
16 | GUI Utilities
17 | Handler
18 | Icon
19 | Keymap
20 | Menu
21 | Mode
22 | Notify-boxes
23 | Number Snip
24 | Panel
25 | Pasteboard
26 | Path Utils
27 | Preferences
28 | Preferences, Textual
29 | Racket
30 | Text
31 | Splash
32 | Test
33 | Version
34 | Backwards Compatibility
35 | Signatures
36 | Unit
| Index

On this page:

autosave: autosavable<%>
do-autosave
autosave: register
autosave: toc-path
autosave: restore-autosave-files/ gui

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### 3`` Autosave

interface autosave:autosavable<%> : interface?

Classes that implement this interface can be autosaved.

> > method (send an-autosave:autosavable do-autosave) → void?

> This method is called when the object is registered to be autosaved (see autosave:register).

> procedure (autosave:register obj) → void?
> | obj |  | : |  |
> (and/c (is-a?/c autosave:autosavable<%>)
> (is-a?/c editor<%>))

Adds obj to the list of objects to be autosaved. When it is time to autosave, the do-autosave method of the object is called. This method is responsible for performing the autosave.

There is no need to de-register an object because the autosaver keeps a “weak” pointer to the object; i.e., the autosaver does not keep an object from garbage collection.

> value autosave:toc-path : path?

The path to the a table-of-contents file for the autosave files that DrRacket has created.

> procedure (autosave:restore-autosave-files/gui) → void?

Opens a GUI to ask the user about recovering any autosave files left around from crashes and things.

This function doesn’t return until the user has finished restoring the autosave files. (It uses yield to handle events however.)

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