获取WkWebView鼠标中键动作

相关

• how to get mouse over URLs into WkWebView with Swift

• How to detect middle mouse button click?,

我正试图让我的子类WkWebView在中间按钮URL上单击以在新窗口/ webView中显示该链接 . WkWebView的上下文菜单中有一个项目可以执行此操作 - 我的目标/操作会改变我的视图，但我希望Web浏览器中的简单性能够做到这一点;中间按钮产生新窗口 .

到目前为止我有这个：

viewDidLoad() {
    //  Watch javascript selection messages
    let controller = webView.configuration.userContentController
    controller.add(self, name: "newWindowWithUrlDetected")

    let js = """
//  https://stackoverflow.com/questions/50846404/how-do-i-get-the-selected-text-from-a-wkwebview-from-objective-c
function getSelectionAndSendMessage()
{
    var txt = document.getSelection().toString() ;
    window.webkit.messageHandlers.newSelectionDetected.postMessage(txt) ;
}
document.onmouseup   = getSelectionAndSendMessage ;
document.onkeyup     = getSelectionAndSendMessage ;

//  https://stackoverflow.com/questions/21224327/how-to-detect-middle-mouse-button-click/21224428
document.body.onclick = function (e) {
  if (e && (e.which == 2 || e.button == 4 )) {
    middleLink;
  }
}
function middleLink()
{
   window.webkit.messageHandlers.newWindowWithUrlDetected.postMessage(this.href) ;
}

//  https://stackoverflow.com/questions/51894733/how-to-get-mouse-over-urls-into-wkwebview-with-swift/51899392#51899392
function sendLink()
{
    window.webkit.messageHandlers.newUrlDetected.postMessage(this.href) ;
}

var allLinks = document.links;
for(var i=0; i< allLinks.length; i++)
{
    allLinks[i].onmouseover = sendLink ;
}
"""
    let script = WKUserScript.init(source: js, injectionTime: .atDocumentEnd, forMainFrameOnly: true)
    controller.addUserScript(script)
}

这个想法是，鼠标悬停时，会报告链接，但是当动作发生时，我想知道哪个按钮被发送到视图 .

麻烦的是我没有看到动作，而不是我的决策处理程序;甚至是加载覆盖（URLRequest :)本身

override func load(_ request: URLRequest) -> WKNavigation? {
    Swift.print("we got \(request)")
    return super.load(request)
}

由于我没有得到动作，我认为问题是javascrpt没有“发送”这样的事件并且完全在网页内处理？

如何将此事件的按钮告知其视图？

导航代表显然不工作？

func webView(_ webView: WKWebView,
             decidePolicyFor navigationAction: WKNavigationAction,
             decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {

    guard let event = NSApp.currentEvent, event.buttonNumber <= 1 else {
        if let url = navigationAction.request.url {
            Swift.print("newWindow with url:\(String(describing: url))")
            DispatchQueue.main.async {
                self.appDelegate.openURLInNewWindow(url)
            }
        }
        decisionHandler(WKNavigationActionPolicy.cancel)
        return
    }
    decisionHandler(WKNavigationActionPolicy.allow)
    return
}