Source/AdiumApplescriptRunner.m

   1 //
   2 //  AdiumApplescriptRunner.m
   3 //  Adium
   4 //
   5 //  Created by Evan Schoenberg on 4/29/06.
   6 //
   7
   8 #import "AdiumApplescriptRunner.h"
   9
  10 @implementation AdiumApplescriptRunner
  11 - (id)init
  12 {
  13         if ((self = [super init])) {
  14                 NSDistributedNotificationCenter *distributedNotificationCenter = [NSDistributedNotificationCenter defaultCenter];
  15                 [distributedNotificationCenter addObserver:self
  16                                                                                   selector:@selector(applescriptRunnerIsReady:)
  17                                                                                           name:@"AdiumApplescriptRunner_IsReady"
  18                                                                                         object:nil];
  19                 [distributedNotificationCenter addObserver:self
  20                                                                                   selector:@selector(applescriptRunnerDidQuit:)
  21                                                                                           name:@"AdiumApplescriptRunner_DidQuit"
  22                                                                                         object:nil];
  23
  24                 [distributedNotificationCenter addObserver:self
  25                                                                                   selector:@selector(applescriptDidRun:)
  26                                                                                           name:@"AdiumApplescript_DidRun"
  27                                                                                         object:nil];
  28
  29                 //Check for an existing AdiumApplescriptRunner; if there is one, it will respond with AdiumApplescriptRunner_IsReady
  30                 [distributedNotificationCenter postNotificationName:@"AdiumApplescriptRunner_RespondIfReady"
  31                                                                                                          object:nil
  32                                                                                                    userInfo:nil
  33                                                                                  deliverImmediately:NO];
  34         }
  35
  36         return self;
  37 }
  38
  39 - (void)dealloc
  40 {
  41         [[NSDistributedNotificationCenter defaultCenter] removeObserver:self];
  42
  43         [[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"AdiumApplescriptRunner_Quit"
  44                                                                                                                                    object:nil
  45                                                                                                                                  userInfo:nil
  46                                                                                                            deliverImmediately:NO];
  47
  48         [super dealloc];
  49 }
  50
  51 - (void)_executeApplescriptWithDict:(NSDictionary *)executionDict
  52 {
  53         [[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"AdiumApplescriptRunner_ExecuteScript"
  54                                                                                                                                    object:nil
  55                                                                                                                                  userInfo:executionDict
  56                                                                                                            deliverImmediately:NO];
  57 }
  58
  59 - (void)launchApplescriptRunner
  60 {
  61         NSString *applescriptRunnerPath = [[NSBundle mainBundle] pathForResource:@"AdiumApplescriptRunner"
  62                                                                                                                                           ofType:nil
  63                                                                                                                                  inDirectory:nil];
  64
  65         //Houston, we are go for launch.
  66         if (applescriptRunnerPath) {
  67                 LSLaunchFSRefSpec spec;
  68                 FSRef appRef;
  69                 OSStatus err = FSPathMakeRef((UInt8 *)[applescriptRunnerPath fileSystemRepresentation], &appRef, NULL);
  70                 if (err == noErr) {
  71                         spec.appRef = &appRef;
  72                         spec.numDocs = 0;
  73                         spec.itemRefs = NULL;
  74                         spec.passThruParams = NULL;
  75                         spec.launchFlags = kLSLaunchDontAddToRecents | kLSLaunchDontSwitch | kLSLaunchNoParams | kLSLaunchAsync;
  76                         spec.asyncRefCon = NULL;
  77                         err = LSOpenFromRefSpec(&spec, NULL);
  78
  79                         if (err != noErr) {
  80                                 NSLog(@"Could not launch %@",applescriptRunnerPath);
  81                         }
  82                 }
  83         } else {
  84                 NSLog(@"Could not find AdiumApplescriptRunner...");
  85         }
  86 }
  87
  88 /*!
  89  * @brief Run an applescript, optinally calling a function with arguments, and notify a target/selector with its output when it is done
  90  */
  91 - (void)runApplescriptAtPath:(NSString *)path function:(NSString *)function arguments:(NSArray *)arguments notifyingTarget:(id)target selector:(SEL)selector userInfo:(id)userInfo
  92 {
  93         NSString *uniqueID = [[NSProcessInfo processInfo] globallyUniqueString];
  94
  95         if (!runningApplescriptsDict) runningApplescriptsDict = [[NSMutableDictionary alloc] init];
  96
  97         if (target && selector) {
  98                 [runningApplescriptsDict setObject:[NSDictionary dictionaryWithObjectsAndKeys:
  99                         target, @"target",
 100                         NSStringFromSelector(selector), @"selector",
 101                         userInfo, @"userInfo", nil]
 102                                                                         forKey:uniqueID];
 103         }
 104
 105         NSDictionary *executionDict = [NSDictionary dictionaryWithObjectsAndKeys:
 106                 path, @"path",
 107                 (function ? function : @""), @"function",
 108                 (arguments ? arguments : [NSArray array]), @"arguments",
 109                 uniqueID, @"uniqueID",
 110                 nil];
 111
 112         if (applescriptRunnerIsReady) {
 113                 [self _executeApplescriptWithDict:executionDict];
 114
 115         } else {
 116                 if (!pendingApplescriptsArray) pendingApplescriptsArray = [[NSMutableArray alloc] init];
 117
 118                 [pendingApplescriptsArray addObject:executionDict];
 119
 120                 [self launchApplescriptRunner];
 121         }
 122 }
 123
 124 - (void)applescriptRunnerIsReady:(NSNotification *)inNotification
 125 {
 126         NSEnumerator    *enumerator;
 127         NSDictionary    *executionDict;
 128
 129         applescriptRunnerIsReady = YES;
 130
 131         enumerator = [pendingApplescriptsArray objectEnumerator];
 132         while ((executionDict = [enumerator nextObject])) {
 133                 [self _executeApplescriptWithDict:executionDict];
 134         }
 135
 136         [pendingApplescriptsArray release]; pendingApplescriptsArray = nil;
 137 }
 138
 139 - (void)applescriptRunnerDidQuit:(NSNotification *)inNotification
 140 {
 141         applescriptRunnerIsReady = NO;
 142 }
 143
 144 - (void)applescriptDidRun:(NSNotification *)inNotification
 145 {
 146         NSDictionary *userInfo = [inNotification userInfo];
 147         NSString         *uniqueID = [userInfo objectForKey:@"uniqueID"];
 148
 149         NSDictionary *targetDict = [runningApplescriptsDict objectForKey:uniqueID];
 150         if (targetDict) {
 151                 id                       target = [targetDict objectForKey:@"target"];
 152                 //Selector will be of the form applescriptDidRun:resultString:
 153                 SEL                      selector = NSSelectorFromString([targetDict objectForKey:@"selector"]);
 154
 155                 //Notify our target
 156                 [target performSelector:selector
 157                                          withObject:[targetDict objectForKey:@"userInfo"]
 158                                          withObject:[userInfo objectForKey:@"resultString"]];
 159
 160                 //No further need for this dictionary entry
 161                 [runningApplescriptsDict removeObjectForKey:uniqueID];
 162
 163                 if (![runningApplescriptsDict count]) {
 164                         [runningApplescriptsDict release]; runningApplescriptsDict = nil;
 165                 }
 166         }
 167 }
 168
 169 @end