engine and first line of js

.gitignore

@@ -0,0 +1,8 @@
+# xcode noise
+build/*
+*.pbxuser
+*.mode1v3
+*.perspectivev3
+# osx noise
+.DS_Store
+profile

AddressBookSpy/AddressBookSpy.xcodeproj/project.pbxproj

@@ -19,6 +19,7 @@
 		8F0ED31714FC1FB500563787 /* libstdc++.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 8F0ED31614FC1FB500563787 /* libstdc++.dylib */; };
 		8F0ED31914FC1FC600563787 /* libicucore.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 8F0ED31814FC1FC600563787 /* libicucore.dylib */; };
 		8F0ED31B14FC1FD800563787 /* AddressBook.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8F0ED31A14FC1FD800563787 /* AddressBook.framework */; };
+		8F0ED31E14FC2A0300563787 /* ABSEngine.m in Sources */ = {isa = PBXBuildFile; fileRef = 8F0ED31D14FC2A0300563787 /* ABSEngine.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -48,6 +49,8 @@
 		8F0ED31614FC1FB500563787 /* libstdc++.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = "libstdc++.dylib"; path = "usr/lib/libstdc++.dylib"; sourceTree = SDKROOT; };
 		8F0ED31814FC1FC600563787 /* libicucore.dylib */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.dylib"; name = libicucore.dylib; path = usr/lib/libicucore.dylib; sourceTree = SDKROOT; };
 		8F0ED31A14FC1FD800563787 /* AddressBook.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AddressBook.framework; path = System/Library/Frameworks/AddressBook.framework; sourceTree = SDKROOT; };
+		8F0ED31C14FC2A0300563787 /* ABSEngine.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ABSEngine.h; sourceTree = "<group>"; };
+		8F0ED31D14FC2A0300563787 /* ABSEngine.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ABSEngine.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -109,6 +112,8 @@
 				8F0ED2FA14FC195800563787 /* ABSViewController.m */,
 				8F0ED2FC14FC195800563787 /* ABSViewController.xib */,
 				8F0ED2EE14FC195800563787 /* Supporting Files */,
+				8F0ED31C14FC2A0300563787 /* ABSEngine.h */,
+				8F0ED31D14FC2A0300563787 /* ABSEngine.m */,
 			);
 			path = AddressBookSpy;
 			sourceTree = "<group>";
@@ -207,6 +212,7 @@
 				8F0ED2F414FC195800563787 /* main.m in Sources */,
 				8F0ED2F814FC195800563787 /* ABSAppDelegate.m in Sources */,
 				8F0ED2FB14FC195800563787 /* ABSViewController.m in Sources */,
+				8F0ED31E14FC2A0300563787 /* ABSEngine.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

AddressBookSpy/AddressBookSpy.xcodeproj/xcuserdata/johannes.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "1.0">
+   <FileBreakpoints>
+      <FileBreakpoint
+         shouldBeEnabled = "No"
+         ignoreCount = "0"
+         continueAfterRunningActions = "No"
+         filePath = "AddressBookSpy/ABSViewController.m"
+         timestampString = "352071585.881848"
+         startingColumnNumber = "9223372036854775807"
+         endingColumnNumber = "9223372036854775807"
+         startingLineNumber = "11"
+         endingLineNumber = "11"
+         landmarkName = "@implementation ABSViewController"
+         landmarkType = "3">
+      </FileBreakpoint>
+   </FileBreakpoints>
+</Bucket>

AddressBookSpy/AddressBookSpy/ABSAppDelegate.m

@@ -9,7 +9,6 @@
 #import "ABSAppDelegate.h"
 
 #import "ABSViewController.h"
-#import <JavaScriptCore/JavaScriptCore.h>
 
 @implementation ABSAppDelegate
 

AddressBookSpy/AddressBookSpy/ABSEngine.h

@@ -0,0 +1,20 @@
+//
+//  ABSEngine.h
+//  AddressBookSpy
+//
+//  Created by Johannes Fahrenkrug on 27.02.12.
+//  Copyright (c) 2012 Springenwerk. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <JavaScriptCore/JavaScriptCore.h>
+
+@interface ABSEngine : NSObject {
+    JSGlobalContextRef _JSContext;
+}
+
+- (JSGlobalContextRef) JSContext;
+- (NSString *)runJS:(NSString *)aJSString;
+- (void)loadJSLibrary:(NSString*)libraryName;
+
+@end

AddressBookSpy/AddressBookSpy/ABSEngine.m

@@ -0,0 +1,74 @@
+//
+//  ABSEngine.m
+//  AddressBookSpy
+//
+//  Created by Johannes Fahrenkrug on 27.02.12.
+//  Copyright (c) 2012 Springenwerk. All rights reserved.
+//
+
+#import "ABSEngine.h"
+
+@implementation ABSEngine
+
+/**
+ Lazily initializes and returns a JS context
+ */
+- (JSGlobalContextRef)JSContext 
+{
+    if (_JSContext == NULL) {
+        _JSContext = JSGlobalContextCreate(NULL);      
+    }
+
+    return _JSContext;
+}
+
+/**
+ Runs a string of JS in this instance's JS context and returns the result as a string
+ */
+- (NSString *)runJS:(NSString *)aJSString 
+{
+    if (!aJSString) {
+        NSLog(@"[JSC] JS String is empty!");
+        return nil;
+    }
+
+
+    JSStringRef scriptJS = JSStringCreateWithUTF8CString([aJSString UTF8String]);
+    JSValueRef exception = NULL;
+
+    JSValueRef result = JSEvaluateScript([self JSContext], scriptJS, NULL, NULL, 0, &exception); 
+    NSString *res = nil;
+
+    if (!result) {
+        if (exception) {
+            JSStringRef exceptionArg = JSValueToStringCopy([self JSContext], exception, NULL);
+            NSString* exceptionRes = (__bridge NSString*)JSStringCopyCFString(kCFAllocatorDefault, exceptionArg); 
+
+            JSStringRelease(exceptionArg);
+            NSLog(@"[JSC] JavaScript exception: %@", exceptionRes);
+        }
+
+        NSLog(@"[JSC] No result returned");
+    } else {
+        JSStringRef jstrArg = JSValueToStringCopy([self JSContext], result, NULL);
+        res = (__bridge NSString*)JSStringCopyCFString(kCFAllocatorDefault, jstrArg); 
+
+        JSStringRelease(jstrArg);
+    }
+
+    JSStringRelease(scriptJS);
+
+    return res;
+}
+
+/**
+ Loads a JS library file from the app's bundle (without the .js extension)
+ */
+- (void)loadJSLibrary:(NSString*)libraryName {
+    NSString *library = [NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:libraryName ofType:@"js"]  encoding:NSUTF8StringEncoding error:nil];
+
+    NSLog(@"[JSC] loading library %@...", libraryName);
+    [self runJS:library];  
+}
+
+@end

AddressBookSpy/AddressBookSpy/ABSViewController.h

@@ -7,7 +7,10 @@
 //
 
 #import <UIKit/UIKit.h>
+#import "ABSEngine.h"
 
 @interface ABSViewController : UIViewController
 
+@property (strong, nonatomic) ABSEngine *engine;
+
 @end

AddressBookSpy/AddressBookSpy/ABSViewController.m

@@ -8,27 +8,22 @@
 
 #import "ABSViewController.h"
 
-@interface ABSViewController ()
-
-@end
-
 @implementation ABSViewController
+@synthesize engine=_engine;
+
+- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
+    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
+    if (self) {
+        self.engine = [[ABSEngine alloc] init];
+    }
+    return self;
+}
 
 - (void)viewDidLoad
 {
     [super viewDidLoad];
-	// Do any additional setup after loading the view, typically from a nib.
-}
-
-- (void)viewDidUnload
-{
-    [super viewDidUnload];
-    // Release any retained subviews of the main view.
-}
-
-- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
-{
-    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
+
+    NSLog(@"Result: %@", [self.engine runJS:@"['Welcome', 'from', 'JavaScript!'].join(' ')"]);
 }
 
 @end