search
LoginSignup
25

More than 5 years have passed since last update.

posted at

updated at

Organization

Swift版 WKWebViewでJavaScript(Alert,Confirm,Prompt)の処理

Obj-C版はこちら
WKWebViewでJavaScript(Alert,Confirm,Prompt)の処理
http://qiita.com/ShingoFukuyama/items/5d97e6c62e3813d1ae98

Swift版がggっても出てこないということで、作成してみました。
WKWebViewの生成のあたりは省いていますのでそこは頑張ってください。

import UIKit
import WebKit

class WebViewController: UIViewController,WKNavigationDelegate,WKUIDelegate {

        .    
        .    
        .    

    // display alert dialog
    func webView(webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: () -> Void) {
        let alertController = UIAlertController(title: "", message: message, preferredStyle: .Alert)
        let otherAction = UIAlertAction(title: "OK", style: .Default) {
            action in completionHandler()
        }        
        alertController.addAction(otherAction)
        presentViewController(alertController, animated: true, completion: nil)
    }        

    // display confirm dialog
    func webView(webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: (Bool) -> Void) {   
        let alertController = UIAlertController(title: "", message: message, preferredStyle: .Alert)
        let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) {
            action in completionHandler(false)
        }        
        let okAction = UIAlertAction(title: "OK", style: .Default) {
            action in completionHandler(true)
        }        
        alertController.addAction(cancelAction)
        alertController.addAction(okAction)
        presentViewController(alertController, animated: true, completion: nil)
    }        

    // display prompt dialog
    func webView(webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: (String?) -> Void) {

        // variable to keep a reference to UIAlertController
        let alertController = UIAlertController(title: "", message: prompt, preferredStyle: .Alert)

        let okHandler: () -> Void = { handler in
            if let textField = alertController.textFields?.first {
                completionHandler(textField.text)
            } else { 
                completionHandler("")
            }        
        }        
        let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) {
            action in completionHandler("")
        }        
        let okAction = UIAlertAction(title: "OK", style: .Default) {
            action in okHandler()
        }        
        alertController.addTextFieldWithConfigurationHandler() { $0.text = defaultText }
        alertController.addAction(cancelAction)
        alertController.addAction(okAction)
        presentViewController(alertController, animated: true, completion: nil)
    }        
}

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
What you can do with signing up
25