javafx html编辑器 [英] javafx html editor

问题描述

实际上我正在寻找与此主题非常相似的东西：

actually i'm looking for something very similar to this thread:

如何隐藏HTMLEditor的控件？

所以基本上我尝试添加一个自定义按钮javafx html编辑器，但区别在于它是通过FXML实现的。

so basically i try to add a custom button to the javafx html editor but with the difference that it's implemented through FXML.

所以我的问题是：

是否有解决方法通过FXML实现自定义按钮到html编辑器？

Is there a "work-around" to add custom buttons to the html-editor when it's implemented through FXML?

推荐答案

我修改了javaFX9的@jewelsea答案。

I have modified the @jewelsea answer for javaFX9.

我还添加了一些自定义来移动工具栏。主要思想是通过css选择器获取所有组件，然后修改或隐藏它们。读取类HTMLEditorSkin以获取CSS类名称，例如对齐按钮的.html-editor-align-center。

I have also added some customization to move toolbars. The main idea is to get all the components by css selector, then modify or hide them. Read the class HTMLEditorSkin to get the CSS classes names, like ".html-editor-align-center" for the align button.

import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.regex.Pattern;

import javafx.application.Application;
import javafx.application.Platform;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.MenuButton;
import javafx.scene.control.MenuItem;
import javafx.scene.control.RadioMenuItem;
import javafx.scene.control.ToolBar;
import javafx.scene.effect.DropShadow;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.GridPane;
import javafx.scene.web.HTMLEditor;
import javafx.stage.Stage;

public class HTMLEditorCustomizationSample2 extends Application {
    // limits the fonts a user can select from in the html editor.
    private static final ObservableList<String> limitedFonts = FXCollections.observableArrayList("Arial",
            "Times New Roman", "Courier New", "Comic Sans MS");
    private HTMLEditor htmlEditor;

    public static void main(String[] args) {
        launch(args);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void start(Stage stage) {
        htmlEditor = new HTMLEditor();
        stage.setScene(new Scene(htmlEditor));
        stage.show();

        customizeEditor(htmlEditor);

    }

    private void customizeEditor(HTMLEditor htmlEditor) {
        // hide controls we don't need.
        Node seperator = htmlEditor.lookup(".separator");
        seperator.setVisible(false);
        seperator.setManaged(false);
        hideByClass(htmlEditor, ".separator");
        hideByClass(htmlEditor, ".html-editor-cut", ".html-editor-copy", ".html-editor-paste", ".html-editor-strike",
                ".html-editor-hr");
        hideByClass(htmlEditor, ".html-editor-align-left"
                , ".html-editor-align-center"
                , ".html-editor-align-right"
                , ".html-editor-align-justify", ".html-editor-outdent"
                , ".html-editor-indent", ".html-editor-bullets"
                , ".html-editor-numbers");
        // Move the toolbars
        Node top= htmlEditor.lookup(".top-toolbar");
        GridPane.setConstraints(top,1,0,1,1);
        Node bottom= htmlEditor.lookup(".bottom-toolbar");
        GridPane.setConstraints(bottom,0,0,1,1);
        Node web= htmlEditor.lookup("WebView");
        GridPane.setConstraints(web,0,1,2,1); 

        // modify font selections.
        int i = 0;
        Set<Node> fonts = htmlEditor.lookupAll(".font-menu-button");
        Iterator<Node> fontsIterator = fonts.iterator();
        fontsIterator.next();
        ComboBox<String> formatComboBox = (ComboBox<String>) fontsIterator.next();

        formatComboBox.itemsProperty().addListener((obs, old, value) -> {
            if (value.size() != limitedFonts.size()) {// should loop on array for equality
                Platform.runLater(() -> {
                    value.clear();
                    // stop.set(true);
                    value.addAll(limitedFonts);
                    formatComboBox.setValue(limitedFonts.get(0));
                });

            }
        });

        // add a custom button to the top toolbar.
        Node node = htmlEditor.lookup(".top-toolbar");
        if (node instanceof ToolBar) {
            ToolBar bar = (ToolBar) node;
            ImageView graphic = new ImageView(
                    new Image("http://bluebuddies.com/gallery/title/jpg/Smurf_Fun_100x100.jpg", 16  , 16, true, true));
            graphic.setEffect(new DropShadow());
            Button smurfButton = new Button("", graphic);
            bar.getItems().add(smurfButton);
            smurfButton.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent arg0) {
                    htmlEditor.setHtmlText("<font face='Comic Sans MS' color='blue'>Smurfs are having fun :-)</font>");
                }
            });
        }
    }

    private void hideByClass(HTMLEditor htmlEditor, String... selectors) {
        for (String selector : selectors) {
            Set<Node> nodes = htmlEditor.lookupAll(selector);
            for (Node node : nodes) {
                node.setVisible(false);
                node.setManaged(false);
            }
        }
    }



    @Override
    public void stop() throws Exception {

        super.stop();
        System.out.println(htmlEditor.getHtmlText());
    }

}

这篇关于javafx html编辑器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！