Merge pull request marcuswestin#70 from shuizhongyueming/master

create a WebViewJavascriptBridgeDelegate

Author: marcuswestin

WebViewJavascriptBridge/WebViewJavascriptBridge.h

@@ -22,13 +22,28 @@
     #define WVJB_WEBVIEW_DELEGATE_TYPE NSObject<UIWebViewDelegate>
 #endif
 
+@protocol WebViewJavascriptBridgeDelegate<NSObject>
+
+@optional
+
+// define a method，make the user decide every request from webview should be load except the WVJB request
+-(BOOL) WVJB_webView:(UIWebView *)webView
+shouldStartLoadWithRequest:(NSURLRequest *)request
+      navigationType:(UIWebViewNavigationType)navigationType;
+
+
+@end
+
 typedef void (^WVJBResponseCallback)(id responseData);
 typedef void (^WVJBHandler)(id data, WVJBResponseCallback responseCallback);
 
 @interface WebViewJavascriptBridge : WVJB_WEBVIEW_DELEGATE_TYPE
 
+@property (nonatomic,weak) id <WebViewJavascriptBridgeDelegate> delegate;
+
 + (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView handler:(WVJBHandler)handler;
 + (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView webViewDelegate:(WVJB_WEBVIEW_DELEGATE_TYPE*)webViewDelegate handler:(WVJBHandler)handler;
++ (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView WVJBDelegate:(id)delegate handler:(WVJBHandler)handler;
 + (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView webViewDelegate:(WVJB_WEBVIEW_DELEGATE_TYPE*)webViewDelegate handler:(WVJBHandler)handler resourceBundle:(NSBundle*)bundle;
 + (void)enableLogging;
 

WebViewJavascriptBridge/WebViewJavascriptBridge.m

@@ -52,6 +52,15 @@ + (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView webViewDelegate:(WV
     WebViewJavascriptBridge* bridge = [[WebViewJavascriptBridge alloc] init];
     [bridge _platformSpecificSetup:webView webViewDelegate:webViewDelegate handler:messageHandler resourceBundle:bundle];
     [bridge reset];
+    bridge.delegate = nil;
+    return bridge;
+}
+
++ (instancetype)bridgeForWebView:(WVJB_WEBVIEW_TYPE*)webView WVJBDelegate:(id)delegate handler:(WVJBHandler)handler {
+    WebViewJavascriptBridge* bridge = [[WebViewJavascriptBridge alloc] init];
+    [bridge _platformSpecificSetup:webView webViewDelegate:nil handler:handler];
+    [bridge reset];
+    bridge.delegate = delegate;
     return bridge;
 }
 
@@ -387,7 +396,17 @@ - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)
     } else if (strongDelegate && [strongDelegate respondsToSelector:@selector(webView:shouldStartLoadWithRequest:navigationType:)]) {
         return [strongDelegate webView:webView shouldStartLoadWithRequest:request navigationType:navigationType];
     } else {
-        return YES;
+        if(self.delegate){
+            if([self.delegate respondsToSelector:@selector(WVJB_webView:shouldStartLoadWithRequest:navigationType:)]){
+                return [self.delegate WVJB_webView:webView
+                 shouldStartLoadWithRequest:request
+                             navigationType:navigationType];
+            }else{
+                return YES;
+            }
+        }else{
+            return YES;
+        }
     }
 }