![]() Property names must be unique within a class. ![]() The definition for any AppleScript class includes the name and class for each of its properties. PropertiesĪ property of an object is a characteristic that has a single value and a label, such as the name property of a window or the month property of a date. The second statement in the run handler calls greetClient() directly, passing the string "Joe Jones". The handler displays a dialog, greeting the default client, Mary Smith. That script object calls the handler greetClient(), passing the property defaultClientName. The first statement in the run handler is run testGreet, which runs the nested script object testGreet. GreetClient("Joe Jones") -result: "Hello Joe Jones!" ![]() Run testGreet -result: "Hello Mary Smith!" Property defaultClientName : "Mary Smith"ĭisplay dialog ("Hello " & nameOfClient & "!") Here is an example of a simple script with one property, one handler, one nested script object, and an implicit run handler with two statements: (For details, see About Handlers.)Ī script object can contain nested script objects, each of which is defined just like a top-level script object, except that a nested script object is bracketed with statements that mark its beginning and end. (For more information, see run Handlers.)Īn implicit run handler consists of any statements outside of any contained handlers or script objects.Ī handler is the equivalent of a subroutine. All script object definitions follow the same syntax, except that a top-level script object does not have statements marking its beginning and end.Ī script object can contain the following:Ī property is a labeled container in which to store a value.Ī run handler contains statements AppleScript executes when the script is run. When you enter AppleScript statements in script window in Script Editor, you are working in a top-level script object. The following sections provide more detail about objects: Third-party scriptable applications define classes that support a wide variety of features. Scriptable parts of macOS and applications distributed with it, such as Finder, System Events, and Database Events (located in /System/Library/CoreServices), define many useful classes. Within in a script object, you work with other objects, including:ĪppleScript defines classes for boolean values, scripts, text, numbers, and other kinds of objects for working in scripts for a complete list, see Class Reference. AppleScript defines classes for the objects you most commonly work with, starting with the top-level script object, which is the overall script you are working in. An object is an instantiation of a class definition, which can include properties and actions. When you write, compile, and execute scripts, everything you work with is an object. AppleScript and ObjectsĪppleScript is an object-oriented language. There are also third-party editors for AppleScript. Figure 2-1 The Finder dictionary in Script Editor (in OS X v10.5) The sdef format, along with other terminology formats, is described in “Specifying Scripting Terminology” in AppleScript Overview. The dictionary is labeled as “Finder.sdef”. Figure 2-1 shows the dictionary for the Finder application in OS X v10.5. Double-click an item in the list to display its dictionary. To display a list that includes just the scriptable applications and scripting additions provided by macOS, choose Window > Library. Or you can drag an application icon to the Script Editor icon to display its dictionary (if it has one). You can choose File > Open Dictionary in Script Editor to display the dictionary of a scriptable application or scripting addition on your computer. In addition, Script Editor provides a contextual menu to insert many types of boilerplate script statements, such as conditionals, comments, and error handlers.Ī dictionary is the part of a scriptable application that specifies the scripting terms it understands. You can also turn on or off the Script Assistant, a code completion tool that can suggest and fill in scripting terms as you type. ![]() Script Editor has text formatting preferences for various types of script text, such as language keywords, comments, and so on. In the Script Editor Preferences, you can also choose to keep a history of recent results or event logs. Script Editor can display the result of executing an AppleScript script and can display a log of the Apple events that are sent during execution of a script. It provides the ability to edit, compile, and execute scripts, display application scripting terminologies, and save scripts in a variety of formats, such as compiled scripts, applications, and plain text. The Script Editor application is located in /Applications/Utilities. This chapter describes basic concepts that underlie the terminology and rules covered in the rest of this guide.
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