Namespace josm

This is the global JOSM API object. It represents a running JOSM instance.

Properties

commands:CommandHistory

Replies the global command history.

Use this object to undo/redo commands, or to clear the command history.

// undoes the last command 
josm.commands.undo();

// redoes two commands
josm.commands.redo(2);

layers:object

Replies the layers object.

josm.alert("num layers: " + josm.layers.length);

// name of first layer 
josm.alert("num layers: " + josm.layers.get(0).name);

menu:MenuBar

Replies an accessor for JOSMs menu bar.

Use this object to inspect or modify the menu bar, i.e. to add additional menu items.

version:string

Replies the current JOSM version string.

josm.alert(josm.version);

Functions

alert

Displays an alert window with a message

alert(message)

Displays an information message with an OK button.

alert(message, ?options)

Displays a message. The look and feel of the alert window depends on the options. The following options are supported:

title:string

(optional) the window title. A string is expected. Empty string if missing.

messageType

(optional) the message type. Use one of the following values:

• JOptionPane.INFORMATION_MESSAGE, "info","information"
• JOptionPane.ERROR_MESSAGE, "error"
• JOptionPane.WARNING_MESSAGE, "warning", "warn"
• JOptionPane.QUESTION_MESSAGE, "question"
• JOptionPane.PLAIN_MESSAGE, "plain"

Default value is JOptionPane.INFORMATION_MESSAGE. String values are not case sensitive and leading and trailing white space is removed.

Examples

// display an information alert
josm.alert("Hello World!");

// display an error alert 
josm.alert("Got an error", {
   title: "Error Alert",
   messageType: "error"    
});

open

Opens one or more files in JOSM.

Accepts a variable number of files. Each argument is either a string (a file name) or a java.io.File.

Creates and opens layers in JOSM, depending on the kind of file opened:

• creates a data layer for data files
• creates a gpx layer for gpx files
• creates an image layer for a directory with images
• etc.