//
//  DSWKwebview.h
//  dspider
//
//  Created by 杜文 on 16/12/28.
//  Copyright © 2016年 杜文. All rights reserved.
//

#import <WebKit/WebKit.h>

typedef void (^JSCallback)(NSString * _Nullable result,BOOL complete);

@interface DWKWebView : WKWebView <WKUIDelegate>

@property (nullable, nonatomic, weak) id <WKUIDelegate> DSUIDelegate;

- (void)loadUrl: (NSString * _Nonnull) url;

// Call javascript handler
-(void) callHandler:(NSString * _Nonnull) methodName  arguments:(NSArray * _Nullable) args;
-(void) callHandler:(NSString * _Nonnull) methodName  completionHandler:(void (^ _Nullable)(id _Nullable value))completionHandler;
-(void) callHandler:(NSString * _Nonnull) methodName  arguments:(NSArray * _Nullable) args completionHandler:(void (^ _Nullable)(id _Nullable value))completionHandler;

// set a listener for javascript closing the current page.
- (void)setJavascriptCloseWindowListener:(void(^_Nullable)(void))callback;

/**
 * Add a Javascript Object to dsBridge with namespace.
 * @param object
 * which implemented the javascript interfaces
 * @param nativeNamespace
 * if empty, the object have no namespace.
 **/
- (void)addJavascriptObject:(id _Nullable ) object namespace:(NSString *  _Nullable)nativeNamespace;

// Remove the Javascript Object with the supplied namespace
- (void)removeJavascriptObject:(NSString *  _Nullable) nativeNamespace;

// Test whether the handler exist in javascript
- (void) hasJavascriptMethod:(NSString * _Nonnull) handlerName methodExistCallback:(void(^ _Nullable)(bool exist))callback;

// Set debug mode. if in debug mode, some errors will be prompted by a dialog
// and the exception caused by the native handlers will not be captured.
- (void) setDebugMode:(bool) debug;

- (void) disableJavascriptDialogBlock:(bool) disable;

// custom the  label text of  javascript dialog that includes alert/confirm/prompt
- (void) customJavascriptDialogLabelTitles:(NSDictionary*_Nullable) dic;

// private method, the developer shoudn't call this method
- (id _Nullable ) onMessage:(NSDictionary *_Nonnull) msg type:(int) type;

@end