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//
// GTMNSAppleEventDescriptor+Handler.m
//
// Copyright 2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMNSAppleEventDescriptor+Handler.h"
#import "GTMNSAppleEventDescriptor+Foundation.h"
#import "GTMMethodCheck.h"
#import <Carbon/Carbon.h>
@implementation NSAppleEventDescriptor (GTMAppleEventDescriptorHandlerAdditions)
GTM_METHOD_CHECK(NSProcessInfo, gtm_appleEventDescriptor);
+ (id)gtm_descriptorWithPositionalHandler:(NSString*)handler
parametersArray:(NSArray*)params {
return [[[self alloc] gtm_initWithPositionalHandler:handler
parametersArray:params] autorelease];
}
+ (id)gtm_descriptorWithPositionalHandler:(NSString*)handler
parametersDescriptor:(NSAppleEventDescriptor*)params {
return [[[self alloc] gtm_initWithPositionalHandler:handler
parametersDescriptor:params] autorelease];
}
+ (id)gtm_descriptorWithLabeledHandler:(NSString*)handler
labels:(AEKeyword*)labels
parameters:(id*)params
count:(NSUInteger)count {
return [[[self alloc] gtm_initWithLabeledHandler:handler
labels:labels
parameters:params
count:count] autorelease];
}
- (id)gtm_initWithPositionalHandler:(NSString*)handler
parametersArray:(NSArray*)params {
return [self gtm_initWithPositionalHandler:handler
parametersDescriptor:[params gtm_appleEventDescriptor]];
}
- (id)gtm_initWithPositionalHandler:(NSString*)handler
parametersDescriptor:(NSAppleEventDescriptor*)params {
if ((self = [self initWithEventClass:kASAppleScriptSuite
eventID:kASSubroutineEvent
targetDescriptor:[[NSProcessInfo processInfo] gtm_appleEventDescriptor]
returnID:kAutoGenerateReturnID
transactionID:kAnyTransactionID])) {
// Create an NSAppleEventDescriptor with the method handler. Note that the
// name must be lowercase (even if it is uppercase in AppleScript).
// http://developer.apple.com/qa/qa2001/qa1111.html
// has details.
handler = [handler lowercaseString];
if (!handler) {
[self release];
return nil;
}
NSAppleEventDescriptor *handlerDesc
= [NSAppleEventDescriptor descriptorWithString:handler];
[self setParamDescriptor:handlerDesc forKeyword:keyASSubroutineName];
if (params) {
[self setParamDescriptor:params forKeyword:keyDirectObject];
}
}
return self;
}
- (id)gtm_initWithLabeledHandler:(NSString*)handler
labels:(AEKeyword*)labels
parameters:(id*)params
count:(NSUInteger)count {
if ((self = [self initWithEventClass:kASAppleScriptSuite
eventID:kASSubroutineEvent
targetDescriptor:[[NSProcessInfo processInfo] gtm_appleEventDescriptor]
returnID:kAutoGenerateReturnID
transactionID:kAnyTransactionID])) {
if (!handler) {
[self release];
return nil;
}
// Create an NSAppleEventDescriptor with the method handler. Note that the
// name must be lowercase (even if it is uppercase in AppleScript).
NSAppleEventDescriptor *handlerDesc
= [NSAppleEventDescriptor descriptorWithString:[handler lowercaseString]];
[self setParamDescriptor:handlerDesc forKeyword:keyASSubroutineName];
for (NSUInteger i = 0; i < count; i++) {
NSAppleEventDescriptor *paramDesc = [params[i] gtm_appleEventDescriptor];
if(labels[i] == keyASPrepositionGiven) {
if (![params[i] isKindOfClass:[NSDictionary class]]) {
_GTMDevLog(@"Must pass in dictionary for keyASPrepositionGiven "
"(got %@)", params[i]);
[self release];
self = nil;
break;
}
NSAppleEventDescriptor *userDesc
= [paramDesc descriptorForKeyword:keyASUserRecordFields];
if (!userDesc) {
_GTMDevLog(@"Dictionary for keyASPrepositionGiven must be a user "
"record field dictionary (got %@)", params[i]);
[self release];
self = nil;
break;
}
[self setParamDescriptor:userDesc
forKeyword:keyASUserRecordFields];
} else {
[self setParamDescriptor:paramDesc
forKeyword:labels[i]];
}
}
}
return self;
}
@end
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