CB-8659 - Update InAppBrowser to support both cordova-ios 4.0.x and 3.x (closes #93)

src/ios/CDVInAppBrowser.m

@@ -41,15 +41,10 @@
 
 @implementation CDVInAppBrowser
 
-- (CDVInAppBrowser*)initWithWebView:(UIWebView*)theWebView
+- (void)pluginInitialize
 {
-    self = [super initWithWebView:theWebView];
-    if (self != nil) {
-        _previousStatusBarStyle = -1;
-        _callbackIdPattern = nil;
-    }
-
-    return self;
+    _previousStatusBarStyle = -1;
+    _callbackIdPattern = nil;
 }
 
 - (void)onReset
@@ -87,7 +82,11 @@
     self.callbackId = command.callbackId;
 
     if (url != nil) {
+#ifdef __CORDOVA_4_0_0
+        NSURL* baseUrl = [self.webViewEngine URL];
+#else
         NSURL* baseUrl = [self.webView.request URL];
+#endif
         NSURL* absoluteUrl = [[NSURL URLWithString:url relativeToURL:baseUrl] absoluteURL];
 
         if ([self isSystemUrl:absoluteUrl]) {
@@ -231,7 +230,11 @@
 {
     if ([self.commandDelegate URLIsWhitelisted:url]) {
         NSURLRequest* request = [NSURLRequest requestWithURL:url];
+#ifdef __CORDOVA_4_0_0
+        [self.webViewEngine loadRequest:request];
+#else
         [self.webView loadRequest:request];
+#endif
     } else { // this assumes the InAppBrowser can be excepted from the white-list
         [self openInInAppBrowser:url withOptions:options];
     }
@@ -462,7 +465,12 @@
         _userAgent = userAgent;
         _prevUserAgent = prevUserAgent;
         _browserOptions = browserOptions;
+#ifdef __CORDOVA_4_0_0
+        _webViewDelegate = [[CDVUIWebViewDelegate alloc] initWithDelegate:self];
+#else
         _webViewDelegate = [[CDVWebViewDelegate alloc] initWithDelegate:self];
+#endif
+        
         [self createViews];
     }