Re: Adding scripting support to Cocoa applications
Re: Adding scripting support to Cocoa applications
- Subject: Re: Adding scripting support to Cocoa applications
- From: email@hidden
- Date: Mon, 10 Mar 2003 17:23:55 -0800 (PST)
>
> When I try to instantiate an object of class foo in Applescript with:
>
>
>
> tell application "MyApp"
>
> make new foo at the beginning of foos
>
> end tell
>
>
>
> I get an error: NSCannotCreateScriptCommandError
>
Does your script terminology have a class NSApplication corresponding
>
to the application property, with superclass NSApplication?
Yes, it does now. I have a GNUMail class that has a superclass of
NSCoreSuite.NSApplication. It has an Apple Event Code of 'capp' and is
referenced by application (plural applications) in the scriptTerminology.
>
And does your NSApplication class have a many-to-many relationship of
>
type "Foo" named "foos" with the same AppleEvent code as your "Foo"
>
class? Having the same AppleEvent code is important; Suite Modeler
>
will show it in blue, indicating that it's a duplicate -- in this
>
case being a duplicate is a *good* thing.
Yes, it does now. My custom class I am trying to script is "Message". Message's
superclass is NSCoreSuite.AbstractObject, its Apple Event Code is 'Gmsg', and is
referenced by "mail message" (plural "mail messages") in the scriptTerminology.
The application class GNUMail has a many-to-many relationship with
"mailMessages" which are of type "Message" and have an Apple Event Code of
'Gmsg'.
>
And finally, does your NSApplication delegate implement
>
-application:delegateHandlesKey: along with a mutable array key for
>
"foos"?
Yes. GNUMail is my application delegate and implements:
- (BOOL)application:(NSApplication *)sender delegateHandlesKey:(NSString *)key
{
NSLog(@"key = %@", key);
return [key isEqualToString:@"mailMessages"];
}
- (NSMutableArray *) mailMessages
{
NSLog(@"returning message list...");
// Just a test, return an empty array.
return ([[[NSMutableArray alloc] init] autorelease]);
}
>
If you have all of the above, then your script should work.
It almost does. This is my test script:
tell application "GNUMail"
make new mail message
end tell
I can see that a new "Message" object is being instantiated in my code, but I
still get a script error: NSArgumentsWrongScriptError
When I try
tell application "GNUMail"
make new mail message at the beginning of mail messages
end tell
a new object is created, but I get the error: NSContainerSpecificError
Finally, when I try
tell application "GNUMail"
make new mail message in front
end tell
then it seems to work OK. The object is created, and I don't get any error. But
why is it not working in the first two cases?
I tried specifying "LocationRequiredToCreate = NO" in my "ToManyRelationships"
of mailMessages of the scriptSuite, but it did not change anything.
I am posting my scriptSuite and scriptTerminology in case anybody can see an
error. I have not yet specified any attributes in my classes. Is that a problem?
Thanks for any help.
Ujwal
GNUMail.scriptSuite:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"
http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
<plist version="1.0">
<dict>
<key>AppleEventCode</key>
<string>GMAL</string>
<key>Classes</key>
<dict>
<key>GNUMail</key>
<dict>
<key>AppleEventCode</key>
<string>capp</string>
<key>Attributes</key>
<dict/>
<key>Superclass</key>
<string>NSCoreSuite.NSApplication</string>
<key>SupportedCommands</key>
<dict/>
<key>ToManyRelationships</key>
<dict>
<key>mailMessages</key>
<dict>
<key>AppleEventCode</key>
<string>Gmsg</string>
<key>ReadOnly</key>
<string>NO</string>
<key>Type</key>
<string>Message</string>
</dict>
</dict>
</dict>
<key>Message</key>
<dict>
<key>AppleEventCode</key>
<string>Gmsg</string>
<key>Attributes</key>
<dict/>
<key>Superclass</key>
<string>NSCoreSuite.AbstractObject</string>
<key>SupportedCommands</key>
<dict/>
<key>ToManyRelationships</key>
<dict/>
</dict>
</dict>
<key>Commands</key>
<dict>
<key>GetURL</key>
<dict>
<key>AppleEventClassCode</key>
<string>GURL</string>
<key>AppleEventCode</key>
<string>GURL</string>
<key>CommandClass</key>
<string>GetURLScriptCommand</string>
</dict>
<key>OpenURL</key>
<dict>
<key>AppleEventClassCode</key>
<string>gurl</string>
<key>AppleEventCode</key>
<string>gurl</string>
<key>CommandClass</key>
<string>GetURLScriptCommand</string>
</dict>
</dict>
<key>Name</key>
<string>GNUMail</string>
</dict>
</plist>
GNUMail.scriptTerminology:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"
http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
<plist version="1.0">
<dict>
<key>Classes</key>
<dict>
<key>GNUMail</key>
<dict>
<key>Attributes</key>
<dict/>
<key>Description</key>
<string>GNUMail's top level scripting object</string>
<key>Name</key>
<string>application</string>
<key>PluralName</key>
<string>applications</string>
</dict>
<key>Message</key>
<dict>
<key>Attributes</key>
<dict/>
<key>Description</key>
<string>This class represents a message object</string>
<key>Name</key>
<string>mail message</string>
<key>PluralName</key>
<string>mail messages</string>
</dict>
</dict>
<key>Commands</key>
<dict>
<key>GetURL</key>
<dict>
<key>Description</key>
<string>Open a mailto URL</string>
<key>Name</key>
<string>get URL</string>
</dict>
<key>OpenURL</key>
<dict>
<key>Description</key>
<string>Open a mailto URL</string>
<key>Name</key>
<string>open URL</string>
</dict>
</dict>
<key>Description</key>
<string>Commands to control GNUMail</string>
<key>Name</key>
<string>GNUMail commands</string>
</dict>
</plist>
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