???PopupFeatures?處理新窗口?
???WebHistory?
網頁一般都帶有歷史記錄的功能，可以回退，也可以前進，fx用WebHistory處理。?

Java代碼??

final?WebHistory?wh?=?webEngine.getHistory();???//獲取webhistory??

go(int?offset)???//跳到相對應的頁，一般-1是后退，1是前進??

getCurrentIndex()??//獲取當前頁索引，開始頁索引為0，點擊進入下一頁此時為1。??

???WebView?WebEngin?
WebView作為一個node用于顯示網頁內容?

Java代碼??

WebView?webView?=?new?WebView();??

WebEngine用于對網頁的操作，通過webView獲取web引擎?

Java代碼??

WebEngine?webEngine?=?webView.getEngine();??

WebEngine的一些方法?

Java代碼??

webEngine.load(java.lang.String?url);??//加載一個網頁??

webEngine.executeScript(java.lang.String?script)??//執行網頁中的腳本語言??

看個demo?

Java代碼??

public?void?init(Group?root){??

????VBox?box?=?new?VBox();??

????WebView?webView?=?new?WebView();??

????final?WebEngine?webEngine?=?webView.getEngine();??

????webEngine.load("http://forums.oracle.com/forums/");??

????box.getChildren().add(webView);??

????Button?button?=?new?Button("showAll");??

????button.setOnAction(new?EventHandler<ActionEvent>()?{??

??????????

????????@Override??

????????public?void?handle(ActionEvent?arg0)?{??

????????????webEngine.executeScript("showAll()");??

????????}??

????});??

????box.getChildren().add(button);??

????root.getChildren().add(box);??

}??

這里要注意的是，腳本必須是你網頁中存在的。?

可以在Application中執行網頁中的腳本，那么也可以在網頁腳本中執行Application方法?

Java代碼??

JSObject?win?=?(JSObject)?webEngine.executeScript("window");??獲取js對象??

win.setMember("app",?new?JavaApp());?然后把應用程序對象設置成為js對象??

private?class?JavaApp?{??

????public?void?exit()?{??

????????Platform.exit();??

????}??

????public?void?login(){??

????????System.out.println("login...");??

????}??

}??

此時在頁面可以調用?

Java代碼??

<a?href="about:blank"?οnclick="app.exit()">Exit?the?Application</a>??

在網頁上右鍵點擊的時候，可以選擇在新窗口打開，此時你必須自己設定。?

Java代碼??

setCreatePopupHandler(Callback<PopupFeatures,WebEngine>?handler)??//處理彈出窗口。??

?webEngine.setCreatePopupHandler(??

????????????new?Callback<PopupFeatures,?WebEngine>()?{??

????????????????@Override?public?WebEngine?call(PopupFeatures?config)?{??

????????????????????return?newWebView.getEngine();??

????????????????}??

?????????????}??

?);??

網頁是通過WebView顯示的，所以當你需要一個新窗口時，你必須弄一個新的webView,并為該webview設置好顯示的位置，然后在上面的代碼中獲取該webview的webengine返回。?

發現加載web頁面需要一段時期，此時application的一些節點顯示出來了，若是想讓節點顯示和web一起顯示，則可以監聽webEngine的狀態屬性。?

Java代碼??

webEngine.getLoadWorker().stateProperty().addListener(??

????????????new?ChangeListener<State>()?{??

????????????????@Override??

????????????????public?void?changed(ObservableValue<??extends?State>?ov,??

????????????????????State?oldState,?State?newState)?{??

????????????????????if?(newState?==?State.SUCCEEDED)?{??

?????????????????????????//添加節點，或者把app注入到網頁腳本當中??

????????????????????????}??

????????????????????}??

????????????????}??

????????);??

看個demo：?

Java代碼??

public?void?init(Group?root){??

????final?TabPane?tp?=?new?TabPane();??

????WebView?webView?=?new?WebView();??

????System.out.println(root.getScene());??

????webView.prefWidthProperty().bind(root.getScene().widthProperty());??

????webView.prefHeightProperty().bind(root.getScene().heightProperty());??

????final?WebEngine?webEngine?=?webView.getEngine();??

????webEngine.load("http://forums.oracle.com/forums/");??

????webEngine.setCreatePopupHandler(new?Callback<PopupFeatures,?WebEngine>()?{??

??????????

????????@Override??

????????public?WebEngine?call(PopupFeatures?arg0)?{??

????????????WebView?newWebView?=?new?WebView();??

????????????WebEngine?newWebEngine?=?newWebView.getEngine();??

????????????Tab?tab?=?new?Tab("new?Window");??

????????????tab.textProperty().bind(newWebEngine.titleProperty());??

????????????tab.setContent(newWebView);??

????????????tp.getTabs().add(tab);??

????????????return?newWebEngine;??

????????}??

????});??

????final?Tab?tab?=?new?Tab();??

????tab.textProperty().bind(webEngine.titleProperty());??

????tab.setContent(webView);??

???????//?process?page?loading??

???????webEngine.getLoadWorker().stateProperty().addListener(??

???????????new?ChangeListener<State>()?{??

???????????????@Override??

???????????????public?void?changed(ObservableValue<??extends?State>?ov,??

???????????????????State?oldState,?State?newState)?{??

???????????????????if?(newState?==?State.SUCCEEDED)?{??

????????????????????tp.getTabs().add(tab);??

???????????????????????}??

???????????????????}??

???????????????}??

???????);??

????root.getChildren().add(tp);??

}??

? ?原文：http://lujin55.iteye.com/blog/1747187

官方文檔：http://docs.oracle.com/javafx/2/api/index.html

轉載于:https://www.cnblogs.com/langtianya/p/3806935.html

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