@@ -10,76 +10,76 @@ import WebKit
1010
1111/// Bridge for WKWebView and JavaScript
1212open class Bridge : NSObject {
13-
13+
1414 static let name : String = " pacific "
15-
15+
1616 fileprivate static let callbackEventName = " PacificDidReceiveNativeCallback "
1717 fileprivate static let postEventName = " PacificDidReceiveNativeBroadcast "
18-
18+
1919 fileprivate enum MessageKey {
2020 static let action = " action "
2121 static let parameters = " parameters "
2222 static let callback = " callback "
2323 static let printable = " print "
2424 }
25-
25+
2626 public struct JSError {
2727 public let code : Int
2828 public let description : String
29-
29+
3030 public init ( code: Int , description: String ) {
3131 self . code = code
3232 self . description = description
3333 }
3434 }
35-
35+
3636 /// Used to callback to webpage whether a message from webpage was handled successful or encountered an error.
3737 ///
3838 /// - success: The result of message was successful
3939 ///
4040 /// - failure: Unable to handle the message, notify js with error by **Object Error** { code: Int, description: String}
4141 ///
4242 public enum Results {
43-
43+
4444 case success( [ String : Any ] ? )
45-
45+
4646 case failure( JSError )
4747 }
48-
48+
4949 /// Bridge Callback to webpage
5050 /// - Parameter results: Value pass to webpage
5151 public typealias Callback = ( _ results: Results ) -> Void
52-
52+
5353 /// Closure when js send message to native
5454 /// - Parameter parameters: js parameters
5555 /// - Parameter callback: callback func
5656 public typealias Handler = ( _ parameters: [ String : Any ] ? , _ callback: @escaping Callback ) -> Void
57-
57+
5858 public typealias DefaultHandler = ( _ name: String , _ parameters: [ String : Any ] ? , _ callback: @escaping Callback ) -> Void
59-
59+
6060 private( set) var handlers = [ String: Handler] ( )
61-
61+
6262 public var defaultHandler : DefaultHandler ?
63-
63+
6464 fileprivate let configuration : WKWebViewConfiguration
6565 fileprivate weak var webView : WKWebView ?
66-
66+
6767 /// Print message body from webpage automatically.
6868 public var printScriptMessageAutomatically = false
69-
69+
7070 deinit {
7171 configuration. removeObserver ( self , forKeyPath: #keyPath( WKWebViewConfiguration . userContentController) )
7272 configuration. userContentController. removeScriptMessageHandler ( forName: Bridge . name)
7373 }
74-
74+
7575 fileprivate init ( webView: WKWebView ) {
7676 self . webView = webView
7777 self . configuration = webView. configuration
7878 super. init ( )
7979 configuration. addObserver ( self , forKeyPath: #keyPath( WKWebViewConfiguration . userContentController) , options: [ . new, . old] , context: nil )
8080 configuration. userContentController. add ( self , name: Bridge . name)
8181 }
82-
82+
8383 /// Register to handle action
8484 /// - Parameter handler: closure when handle message from webpage
8585 /// - parameter action: name of action
@@ -95,13 +95,13 @@ open class Bridge: NSObject {
9595 public func register( _ handler: @escaping Handler , for action: String ) {
9696 handlers [ action] = handler
9797 }
98-
98+
9999 /// Unregister an action
100100 /// - Parameters action: name of action
101101 public func unregister( for action: String ) {
102102 handlers [ action] = nil
103103 }
104-
104+
105105 /// send action to webpage
106106 /// - Parameter action: action listened by js `window.bridge.on(**action**, handler)`
107107 /// - Parameter parameters: parameters pass to js
@@ -114,16 +114,16 @@ open class Bridge: NSObject {
114114 guard let webView = webView else { return }
115115 webView. st_dispatchBridgeEvent ( Bridge . postEventName, parameters: [ " name " : action] , results: . success( parameters) , completionHandler: nil )
116116 }
117-
117+
118118 /// Evaluates the given JavaScript string.
119119 /// - Parameter javaScriptString: The JavaScript string to evaluate.
120120 /// - Parameter completion: A block to invoke when script evaluation completes or fails.
121121 public func evaluate( _ javaScriptString: String , completion: ( ( Any ? , Error ? ) -> Void ) ? = nil ) {
122122 guard let webView = webView else { return }
123123 webView. evaluateJavaScript ( javaScriptString, completionHandler: completion)
124124 }
125-
126- open override func observeValue( forKeyPath keyPath: String ? , of object: Any ? , change: [ NSKeyValueChangeKey : Any ] ? , context: UnsafeMutableRawPointer ? ) {
125+
126+ open override func observeValue( forKeyPath keyPath: String ? , of object: Any ? , change: [ NSKeyValueChangeKey : Any ] ? , context: UnsafeMutableRawPointer ? ) {
127127 if let obj = object as? WKWebViewConfiguration , let kp = keyPath, obj == configuration && kp == #keyPath( WKWebViewConfiguration . userContentController) {
128128 if let change = change {
129129 if let oldContentController = change [ . oldKey] as? WKUserContentController {
@@ -138,7 +138,7 @@ open class Bridge: NSObject {
138138}
139139
140140extension Bridge : WKScriptMessageHandler {
141-
141+
142142 /*! @abstract Invoked when a script message is received from a webpage.
143143 @param userContentController The user content controller invoking the
144144 delegate method.
@@ -171,7 +171,7 @@ extension Bridge: WKScriptMessageHandler {
171171 }
172172 return
173173 }
174-
174+
175175 if let callbackID = ( body [ MessageKey . callback] as? NSNumber ) {
176176 handler ( body [ MessageKey . parameters] as? [ String : Any ] ) { [ weak self] ( results) in
177177 guard let strongSelf = self else {
@@ -190,11 +190,11 @@ extension Bridge: WKScriptMessageHandler {
190190}
191191
192192public extension WKWebView {
193-
193+
194194 private struct STPrivateStatic {
195195 fileprivate static var bridgeKey = " STPrivateStatic.bridgeKey "
196196 }
197-
197+
198198 /// Bridge for WKWebView and JavaScript. Initialize `lazy`
199199 var bridge : Bridge {
200200 if let bridge = objc_getAssociatedObject ( self , & STPrivateStatic. bridgeKey) as? Bridge {
@@ -204,7 +204,7 @@ public extension WKWebView {
204204 objc_setAssociatedObject ( self , & STPrivateStatic. bridgeKey, bridge, . OBJC_ASSOCIATION_RETAIN_NONATOMIC)
205205 return bridge
206206 }
207-
207+
208208 /// Remove Bridge And Reset, All the handlers will be removed
209209 func removeBridge( ) {
210210 if let bridge = objc_getAssociatedObject ( self , & STPrivateStatic. bridgeKey) as? Bridge {
@@ -216,12 +216,12 @@ public extension WKWebView {
216216}
217217
218218fileprivate extension WKWebView {
219-
219+
220220 func st_dispatchBridgeEvent( _ eventName: String ,
221221 parameters: [ String : Any ] ,
222222 results: Bridge . Results ,
223223 completionHandler: ( ( Any ? , Error ? ) -> Void ) ? = nil ) {
224-
224+
225225 var eventDetail : [ String : Any ] = parameters
226226 switch results {
227227 case . failure( let error) :
@@ -234,7 +234,7 @@ fileprivate extension WKWebView {
234234 if
235235 let _data = try ? JSONSerialization . data ( withJSONObject: eventBody, options: JSONSerialization . WritingOptions ( ) ) ,
236236 let eventString = String ( data: _data, encoding: . utf8) {
237-
237+
238238 jsString = " (function() { var event = new CustomEvent(' \( eventName) ', \( eventString) ); document.dispatchEvent(event)}()); "
239239 } else {
240240 // When JSON Not Serializable, Invoke with Default Parameters
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